Tektronix 494AP Calibration Procedure

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NAVAIR 17–20AW–232

TECHNICAL MANUAL



INSTRUMENT CALIBRATION PROCEDURE

SPECTRUM ANALYZERS

TEKTRONIX

494, 494P, 494POPT08,

494POPT30, 494AP

AND

INTERSTATE ELECTRONICS

7185400

THIS PUBLICATION SUPERSEDES NAVAIR 17–20AW–232

DATED 1 MARCH 1991

DISTRIBUTION STA TEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND THEIR CONTRACTORS TO PROTECT PUBLICA TIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRA TIVE OR OPERA TIONAL PURPOSES ONL Y . OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO NA VY MEASUREMENT SCIENCE DIRECTORATE, NAVAL WARFARE ASSESSMENT DIVISION, P.O. BOX 5000 CORONA, CA 91718–5000

DESTRUCTION NOTICE– FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTS OR “RECONSTRUCTION OF THE DOCUMENT.”

PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND

1 APRIL 1997



NAVAIR 17–20AW–232

LIST OF EFFECTIVE PAGES

The purpose of this list is to identify the pages in this document affected by any technical content changes made since the previous release of the document.

NOTE: On a revised page, with the exception of the Title, the A, and the i pages, the technical changes are indicated by a vertical line in the outer margin of the page.

Page

No.

Title R AR i0 1, 2 R 3, 4 0 5 to 9 R 10, 11 0 12 to 16 R 17 0 18 to 35 R 36 0 37 R

Revision*

Page

No.

Revision*

Page

No.

Revision*

38, 39 0 40 to 43 R 44 (blank) 0 45 to 53 R 54 (blank) 0 55 to 64 R

* Zero in this column indicates an original page.

“R” in this column indicates a revised page.

NAVAIR 17–20AW–232

TABLE OF CONTENTS

Section Page

1 Introduction and Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Equipment Requirements 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Preliminary Operations 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Calibration Process 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Calibrator Tests 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Counter Readout Tests 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Center Frequency Tests 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4 CRT Display Tests 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5 Frequency Span Tests 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.6 RF Attenuator Tests 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.7 IF Gain Tests 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.8 Frequency Response Tests 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.9 Equivalent Input Noise Sensitivity Tests 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.10 Intermodulation Distortion T ests 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.11 Harmonic Distortion T est 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.12 Noise Sidebands T est 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.13 Residual Response T ests 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.14 Residual FM T ests 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.15 Resolution Bandwidth T ests 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.16 IEEE Bus Tests (494P and 494AP Models only) 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Navy Calibration Checklist 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ILLUSTRATIONS

Figure Page

1 Calibrator T est Configuration 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Counter Readout T est Configuration 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 CR T Display Test Configuration 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Frequency Span T est Configuration 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 RF Attenuator T est Configuration 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Frequency Response T est Configuration 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Intermodulation Distortion T est Configuration 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Third Order Intermodulation Display 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Sideband Noise Level Measurement Display 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Calculating Slope for Residual FM Measurement 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Residual FM Measurement Display 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 Resolution Bandwidth and Shape Factor Measurement Displays 41. . . . . . . . . . . . . . . . . . . . . . . . . .

TABLES

T able Page

1 Calibration Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NAVAIR 17–20AW–232

SECTION 1

INTRODUCTION AND DESCRIPTION

1.1 This procedure describes the calibration of the T ektronix 494, 494P, 494POPT08, 494POPT30, 494AP and Interstate Electronics 7185400 Spectrum Analyzers. The instrument being calibrated is referred to herein as the TI (Test Instrument).

1.2 All comments concerning this procedure should be directed to Navy Measurement Science Directorate, Naval Warfare Assessment Division, P .O. Box 5000, Corona, CA 91718–5000.

1.3 This procedure includes tests of essential performance parameters only. Any malfunction noticed during calibration, whether specifically tested for or not, should be corrected.

1.4 If the TI is the Interstate Elecectronics 7185400, the T ektronix 494P test tolerances apply.

T able 1. Calibration Description

Characteristics

Calibrator

Counter read–out

Performance

Specifications

Frequency: 100 MHz T olerance: +

10 Hz

Output level: –20 dBm T olerance: +

0.3 dB

Range: 10 kHz to 21 GHz T olerance: + x 1 x 10

[(counter frequency

–

) + [(10 + 2N) Hz] + 1 LSD], all 494 series and for delta frequency mode if TI is a 494A series; + x 1 x 10

[(counter frequency

–

) + [(5 + N) Hz] + 1 LSD], frequency accuracy mode if TI is a 494A series Where N=1 for Bands 1 through 3, and N=3 for Bands 4 and 5; and where: BAND 1 = 0 to 1.8 GHz BAND 2 = 1.7 to 5.5 GHz BAND 3 = 3.0 to 7.1 GHz BAND 4 = 5.4 to 18 GHz BAND 5 = 15 to 21 GHz

T est

Method

Measured with an electronic counter.

T ested using the TI display by measuring, with a power meter, the output level of a signal generator that had been set to the same power level as the TI calibrator signal.

T ested with the TI CAL OUT markers and a signal source.

NAVAIR 17–20AW–232

Characteristics

Center frequency accuracy

CR T display

Performance

Specifications

Range: 10 kHz to 21 GHz T olerance: + Res. BW, whichever is greater) + (center frequency x 1 x 10

[(20% of span/div or

–

) + {(N x 15) kHz}] for Bands 1 and 5 with span/div >200 kHz, and Bands 2 through 4 with span/div >100 kHz; +[(20% of span/div or Res. BW, whichever is greater) + (center frequency x 1 x 10

–

) + {(2N + 25) Hz}] for Bands 1 and 5 with span/div <200 kHz, and Bands 2 through 4 with span/div <100 kHz

Range: 80 dB (log) or 8 divisions (linear) T olerance: + maximum of + range; + maximum of + range; +

1.0 dB/10 dB to a 2 dB over 80 dB

0.4 dB/2 dB to a

1.0 dB over 16 dB

5% fullscale over linear

range

Test

Method

T ested with a signal source.

T ested using a signal generator and step attenuators.

Frequency span/div

RF attenuator

494 Models Range (in a 1, 2, 5 sequence): 50 Hz/div to 200 MHz/div for Bands 1 to 3; 50 Hz/div to 500 MHz/div for Bands 4 and 5

494A Models Range (in a 1, 2, 5 sequence): 10 Hz/div to 100 MHz/div for Band 1; 10 Hz/div to 200 MHz/div for Bands 2 and 3; 10 Hz/div to 1 GHz/div for Band 4; 10 Hz/div to 500 MHz/div for Band 5 T olerance: +

5% of frequency span/div setting over center 8 div of CRT display,

50 Hz/div bandwidth settings

> 494 Models

Range: 0 to 60 dB in 10 dB steps T olerance: + maximum of +

0.3 dB/10 dB to a

0.7 dB, over the 60 dB range from DC to 4 GHz; +0.5 dB/10 dB to a maximum of 1.4 dB, over the 60 dB range from 4 to 18 GHz

T ested using a comb generator for spans of 500 MHz/div down to 500 kHz/div, and then using a function generator to modulate the comb generator to test the span from 200 kHz/div down to 2 kHz/div; or tested using an accurate (frequency) signal generator, or signal source.

T ested at 1, 10, and 15 GHz by noting the change in the signal generator level (as measured by a calibrator) that is required to regain a reference as the TI attenuators are switched in.

NAVAIR 17–20AW–232

Characteristics

RF attenuator (cont.)

IF gain

Performance

Specifications

494A Models Range: 0 to 60 dB in 10 dB steps T olerance: + maximum of + 60 dB range to 1.8 GHz; +1.5 dB/10 dB to a maximum

3.0 dB, over the 60 dB

of + range from 1.8 to 18 GHz; +

3 dB/10 dB to a maximum

6 dB, over the 60 dB

of + range from 18 to 21 GHz

Range: 97 dB (107 dB, 494A models) T olerance: + maximum of + except at the decade transitions from –19 to –20 dBm, –29 to –30 dBm, –39 to –40 dBm, –49 to –50 dBm, and –59 to –60 dBm, where an additional + a total of + (with add maximum error of +2 dB over the full range)

0.5 dB/10 dB to a

1.0 dB, over the

0.2 dB/dB to a

0.5 dB/9 dB,

0.5 dB can occur for

1.0 dB per decade;

Test

Method

T ested at 100 MHz by noting the change in signal generator level (as measured by a calibrator) that is required to regain a reference as the TI IF gain is varied.

Frequency response

Frequency response (about the mid–point between two extremes): Band 1: +

1.8 GHz; +

1.8 GHz; (494 models only) Band 1: +

1.8 GHz, (494A models only) Band 2: +2.5 dB Band 3: + Band 4: + Band 5: + Frequency response (referenced to 100 MHz): Band 1: +

1.8 GHz; +

1.8 GHz, (494 models only) Band 1: +2.5 dB, 10 kHz to

1.8 GHz, (494A models only) Band 2: + Band 3: + Band 4: + Band 5: +

1.5 dB, 50 kHz to

2.0 dB, 10 kHz to

1.5 dB, 10 kHz to

2.5 dB

3.5 dB

5.0 dB

2.5 dB, 50 kHz to

3.0 dB, 10 kHz to

3.5 dB

4.5 dB

6.5 dB

T ested by noting the TI indication of test signal that are held constant in level and verifying that the TI indications, when compared to each other, are acceptable.

NAVAIR 17–20AW–232

Characteristics

Equivalent input noise 494 Models:

Sensitivity: Bands 1–3 (50 kHz to 7.1 GHz):

–80 dBm at 1 MHz res. BW;

–90 dBm at 100 kHz res. BW; –100 dBm at 10 kHz res. BW; –110 dBm at 1 kHz res. BW ; –118 dBm at 100 Hz res. BW; –121 dBm at 30 Hz res. BW

Bands 4 (5.4 kHz to 12.0 GHz):

–65 dBm at 1 MHz res. BW;

–75 dBm at 100 kHz res. BW;

–85 dBm at 10 kHz res. BW;

–95 dBm at 1 kHz res. BW; –103 dBm at 100 Hz res. BW; –106 dBm at 30 Hz res. BW

Band 4 (12.0 to 18.0 GHz):

–60 dBm at 1 MHz res. BW;

–70 dBm at 100 kHz res. BW;

–80 dBm at 10 kHz res. BW;

–90 dBm at 1 kHz res. BW;

–98 dBm at 100 Hz res. BW; –101 dBm at 30 Hz res. BW

Band 5 (15.0 to 21.0 GHz):

–55 dBm at 1 MHz res. BW;

–65 dBm at 100 kHz res. BW;

–75 dBm at 10 kHz res. BW;

–85 dBm at 1 kHz res. BW;

–93 dBm at 100 Hz res. BW;

–96 dBm at 30 Hz res. BW

Performance

Specifications

Test

Method

Tested by verifying that the TI average noise level does not exceed the rated sensitivity of the TI at the test frequency.

494A Models Sensitivity: Band 1:

–80 dBm at 3 MHz res. BW;

–85 dBm at 1 MHz res. BW;

–95 dBm at 100 kHz res. BW; –105 dBm at 10 kHz res. BW; –115 dBm at 1 kHz res. BW ; –125 dBm at 100 Hz res. BW; –134 dBm at 10 Hz res. BW

Bands 2 & 3:

–74 dBm at 3 MHz res. BW;

–79 dBm at 1 MHz res. BW;

–89 dBm at 100 kHz res. BW;

–99 dBm at 10 kHz res. BW; –109 dBm at 1 kHz res. BW; –119 dBm at 100 Hz res. BW; –125 dBm at 10 Hz res. BW

Band 4 (5.4 to 12 GHz):

–60 dBm at 3 MHz res. BW;

–65 dBm at 1 MHz res. BW;

–75 dBm at 100 kHz res. BW;

–85 dBm at 10 kHz res. BW;

–95 dBm at 1 kHz res. BW; –105 dBm at 100 Hz res. BW;

–111 dBm at 10 Hz res. BW

NAVAIR 17–20AW–232

Characteristics

Equivalent input noise (Cont.)

Intermodulation distortion

Harmonic distortion

Performance

Specifications

Band 4 (12 to 18 GHz) and 5:

–55 dBm at 3 MHz res. BW; –60 dBm at 1 MHz res. BW; –70 dBm at 100 Hz res. BW; –80 dBm at 10 kHz res. BW;

–90 dBm at 1 kHz res. BW;

–100 dBm at 100 Hz res. BW; –107 dBm at 10 Hz res. BW

Third order products: at least –70 dB below any two on–screen signals within any frequency span

Harmonic distortion: at least –60 dBc for full screen signal (to 1.8 GHz): at least –100 dBc (1.7 to 21 GHz) (494 models only); not discernible, (494A models only)

T est

Method

T ested using two signals which are 1 MHz apart at approximately 1 GHz, and verifying with the TI display that the 3rd order products are within specifications.

The TI is set for a fullscale display of –30 dBm (–40 dBm, 494A models). A precise 100 MHz signal from a signal generator is adjusted for a fullscale display on the TI. Next, the TI is adjusted to center the harmonic of 200 MHz on the display. A filter is inserted to reject the external 200 MHz harmonic signal and the TI display is verified to be at least 60 dB below fullscale.

Noise sidebands

Residual response

LO emission out

Residual FM (short term) after 1 hour warm–up

At least –75 dBc at 30 times the resolution bandwidth offset (–70 dBc at 30 times the resolution bandwidth offset for 100 Hz resolution bandwidth or less)

Responses: –100 dBm or less (no input signal, referenced to mixer input)

Maximum output: –70 dBm (referenced to input mixer)

(7 x N) kHz total excursion in

20 ms; Band 1 and 5 with span/div >200 kHz and Bands 2 through 4 with span/div >100 kHz (phaselocked off)

(10 + 2N) Hz total excursion in

20 ms; Bands 1 and 5 with span/div <200 kHz and Bands 2 through 4 with span/div < (phaselocked on)

100 kHz

T ested with the TI CAL OUT signal.

T ested in 100 MHz increments using the TI display by verifying that all observed residual responses are below –100 dBm.

T ested by inference during residual response tests.

T ested using the TI display and the TI CAL OUT signal.

NAVAIR 17–20AW–232

Characteristics

Resolution bandwidth

IEEE data bus (494P and 494AP models only)

1.4 This procedure does not perform tests for vertical output, horizontal output, trigger sensitivity, external

sweep, time/div , and preselector rejection.

494 Models Range: 30 Hz, and then 100 Hz to 1 MHz in decade steps T olerance: Within +20% of bandwidth at 6 dB down Shape factor: <7.5:1; <15:1 at 30 Hz Res. BW 494A Models Range: 10 Hz to 1 MHz in decade steps, and then 3 MHz T olerance: Within +20% of bandwidth at 6 dB down Shape factor: <7.5:1; <12:1 at 10 Hz Res. BW

Conforms to IEEE std. 488–1978 for Talker and Listener

Performance

Specifications

Test

Method

T ested using the TI CAL OUT signal and the CRT display.

Checked using an IEEE bus tester program.

NOTE

If the TI is used for applications only up to 18 GHz, calibrate the TI only up to 18 GHz; otherwise, if the TI is used for applications up to 21 GHz, calibrate the TI fully up to 21 GHz as directed in the procedure.

SECTION 2

EQUIPMENT REQUIREMENTS

NOTE

Minimum use specifications are the principal parameters required for performance of the calibration, and are included to assist in the selection of alternate equipment, which may be used at the discretion of the using laboratory. Satisfactory performance of alternate items shall be verified prior to use. All applicable equipment must bear evidence of current calibration.

The instruments utilized in this procedure were selected from those known to be available at Navy calibration facilities, and the listing by make or model number carries no implication of preference, recommendation, or approval for use by other agencies. It is recognized that equivalent equipment produced by other manufacturers may be capable of equally satisfactory performance in this procedure.

NAVAIR 17–20AW–232

Item

2.1 Microwave counter*

2.2 Low pass filter

2.3 Signal generator

(2 required)

2.4 Power meter

2.5 Power sensor*

Minimum Use

Specifications

Frequency: 100 MHz to 21 GHz Uncertainty: +

2.5 x 10

–

Sensitivity: –20 dBm Resolution: 1 Hz

Cutoff frequency: 135 MHz Insertion loss: 1 dB max. at 100 MHz Rejection: at least 40 dB at 200 MHz Impedance: 50 

Frequency: 20 MHz to 1 GHz (and 200 MHz to 1.8 GHz is used for frequency span/div tests) Uncertainty: NA** Stability: +

0.001%/hr max.

Output: +12 to –85 dBm

Power display range: 0 to –20 dBm Uncertainty: +

1% fullscale

Frequency: 100 MHz to 21 GHz Power range: 0 to –20 dBm Cal. factor uncertainty: +

2.5% max. SWR: 1.40 max. Must be compatible with power meter (item 2.4)

Calibration

Equipment

Hewlett–Packard 5351BOPT001 or 5343AOPT001, 011

T elonic TLC135–7EE2; or Sierra 184–135

Hewlett–Packard 8642BOPT001, 710, 907, 8642BOPT001, 907, or 8640BOPT001, 002, 003***; or Fluke 6062AOPT130 or 6071AOPT130***

Hewlett–Packard 436AOPT022, 436A, or 435A

100 MHz to 18 GHz Hewlett–Packard 8481A

18 to 21 GHz Hewlett–Packard 8485A

2.6 Signal source

CW frequency: 100 MHz to 21 GHz Uncertainty: NA** Resolution: 10 Hz

Hewlett–Packard 83630AOPT001, 008, H53,

8340B or 8340A Output: +10 to –85 dBm Sweep frequency range: 10 MHz to 21 GHz Output: +6 dBm to –10 dBm Capable of being externally leveled to

0.375 dB

2.7 Step attenuators (one of each value required)

Overall attenuation: 0 to 80 dB in 1 dB steps Consisting of attenuation: 0 to 12 dB in 1 dB steps; and

Attenuation: 0 to 80 dB in 1 0dB steps

Hewlett–Packard 355COPT001, 355COPTC08, or 355C

Hewlett–Packard 355DOPT001, 355DOPTC08, or 355D

* If the TI is to be calibrated up to 18 GHz, the top frequency requirement of these items is

only 18 GHz.

** If the signal generator or signal source is to be used for the TI frequency span/div tests instead of

the comb generator, then the frequency uncertainty of the signal generator or signal source should

1 x 10

–

be +

*** Not applicable, if the signal generator is to be used for the TI frequency span/div tests.

NAVAIR 17–20AW–232

Item

2.8 Comb generator***

2.9 Function generator

2.10 T ee

2.11 10 dB attenuator (2 required)

2.12 Power splitter*

2.13 Calibrator*

Minimum Use Specifications

Frequency comb: 1, 10, and 100 Mhz increments Uncertainty: + Capable of being externally modulated

Frequency range: 2 kHz to 200 kHz Uncertainty: +

BNC T ee, Coaxial Attenuation: 10 dB

Frequency: 30 MHz to 1 GHz SWR: 1.20 max.

Frequency range: 0 to 21 GHz Input SWR: 1.20 max. Output SWR: 1.10 max. Output tracking between arms:

0.15 dB max. Insertion loss: 6 dB nom.

Frequency range: 30 to 1000 MHz Power range: +20 to –80 dBm Uncertainty: +

0.01%

0.35 dBm absolute

Calibration Equipment

Hewlett–Packard 8406A

Hewlett–Packard 33120AOPT001 or 3314A

Amphenol UG274AU Weinschel 2–10; or

Hewlett–Packard 8491BOPT010

0 to 18 GHz Weinschel 1870A; or Hewlett–Packard 11667A 18 to 21 GHz Weinschel 1579; or Hewlett–Packard 11667B

Hewlett–Packard 8902AOPTE04 (consists of : HP 8902A; 8672AOPT001, 008; 11792AOPT001, H04; and 11793AOPTH04)

2.14 Oscillator

2.15 3 dB attenuator*

2.16 Instrument controller**

* If the TI is to be calibrated up to 18 GHz, the top frequency requirement of these items is

only 18 GHz.

** These items are required only if the TI is a 494P or 494AP series.

*** Not required if the signal generator or the signal source is to be used for the TI

frequency span/div tests.

Frequency range: 10 kHz to 10 MHz Output: 0.141 V rms (–4 dBm) Output meter frequency response: +

Attenuation: 3 dB Frequency range: 0 to 21 GHz SWR: 1.20 max.

Programmable using diskette NAVAIR 17–20MSYS–036D, version 2 or 3, IEEE–488 GPIB test for use with Fluke 1720A/AP or 1722A/AP

Hewlett–Packard 33120AOPT001 or Fluke 6011AOPT01, 03, 05 or 6011AOPT01, 02, 05

0 to 18 GHz Weinschel 2–3; or Hewlett–Packard 8491BOPT003 18 to 21 GHz Hewlett–Packard 8493COPT003

Fluke 1722A/AP or 1720A/AP

NAVAIR 17–20AW–232

Item

2.17 Interface bus cable*

2.18 Coaxial termination

* These items are required only if the TI is a 494P or 494AP series.

3.1 Ensure that all power switches are set to off, and set all auxiliary equipment controls as necessary to avoid damage to the equipment and so that dangerous voltages will not be present on output terminals when the power switches are turned on.

Meets IEEE Std. 488–1978 and FCC regulation 79–555–14686

50 ohms, 1 watt SWR: < Frequency range: DC to 18 GHz

Minimum Use Specifications

Local supply

W einschel M1404N

1.02 + 0.0023f (GHz)

SECTION 3

PRELIMINAR Y OPERATIONS

Calibration Equipment

3.2 Connect the auxiliary equipment, and the TI, to the appropriate power source.

3.3 Turn all auxiliary power switches to on and allow a sufficient warm–up time for the equipment.

NOTES

The 1st and 2nd LO OUTPUTS must be terminated into 50  at all times.

At times throughout this procedure, it may be necessary to activate the TI BASELINE CLIP function in order to see the TI read–out on the bottom of the TI CRT.

3.4 Initial TI Turn–on.

3.4.1 Set the TI POWER switch to ON.

NOTE

When the TI POWER is switched on, the internal TI processor will run a memory and I/O test. If a problem exists, a failure message will appear on the TI CRT screen. The program will be ready to operate if there is no problem.

3.4.2 Verify that the TI passed the memory and I/O test (no failure messages).

3.4.3 Ensure that the TI CRT read–out is functioning. If necessary, activate the TI READOUT function and adjust the INTENSITY control for the desired brightness.

NAVAIR 17–20AW–232

TI functions can be toggled active/inactive by pressing the function pushbutton. A TI function is considered active when its pushbutton is illuminated and inactive when its pushbutton is not illuminated, Throughout this procedure, when instructed to activate a TI function that is currently active, first deactivate that function then activate it.

3.4.4 Ensure that the TI BASELINE CLIP function is deactivated.

3.4.5 Allow a 1 hour TI warm–up time before proceeding.

3.5 Internal Calibration

3.5.1 Activate the TI CAL function (SHIFT, FINE pushbuttons) to start the TI internal calibration routine.

During the TI processor generated calibration procedure, the technician should observe the TI CR T for instructional messages and take action accordingly. The first message should instruct the technician to connect the TI CAL OUT to the TI RF INPUT and to ensure that the TI PEAK/AVERAGE knob is fully counterclockwise. Subsequent messages on the TI CRT will direct the technician on how to adjust the vertical and horizontal POSITION, CAL AMPL, and LOG controls. This sets the absolute Reference Level for the 1 MHz resolution bandwidth filter. An automatic calibration is then run by the TI processor, which measures and corrects frequency and amplitude errors of the other filters with respect to the 1 MHz filter and the reference frequency .

NOTE

3.5.2 Press the TI FINE pushbutton to continue with the calibration routine.

3.5.3 Verify that the TI passed the calibration routine.

NOTE

If the TI processor completes the routine, the TI control settings will return to normal operation (no CALIBRATION FAILED message).

3.6 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 200 kHz VER TICAL DISPLAY to 10 dB/div MIN RF ATTEN switch to 0 dB REF LEVEL to 0 dBm AUTO RESOLN function to ON (activated) VIDEO FILTER to NARROW

NAVAIR 17–20AW–232

TIME/DIV switch AUTO DIGITAL STORAGE VIEW A function to ON (activated) DIGITAL STORAGE VIEW B function to ON (activated) TRIGGERING to FREE RUN MIN NOISE function to OFF (deactivated)

3.7 H–P 8902A Calibrator Sensor Module Zeroing and Reference Calibration

3.7.1 Ensure that the calibrator system is interconnected as appropriate.

3.7.2 Press the calibrator INSTR PRESET (Blue key, Green AUTOMATIC OPERATION key), set the calibrator to measure RF POWER.

3.7.3 Connect the calibrator sensor module input to the calibrator RF POWER output.

3.7.4 Press the calibrator ZERO key, and after the calibrator momentarily displays 0.000 W followed by a small measurement value, press the CALIBRATE key.

3.7.5 Select the calibrator SAVE CAL function (Blue key, CALIBRATE key) and then press the CALIBRA TE key. The calibrator sensor module is now zeroed and reference calibrated. Disconnect the calibrator sensor module input from the calibrator RF POWER output.

SECTION 4

CALIBRATION PROCESS

NOTES

Unless otherwise specified, verify the results of each test and take corrective action whenever the test requirement is not met, before proceeding.

Unless otherwise specified, make all measurements with the TI PEAK/AVERAGE knob fully counterclockwise.

4.1 CALIBRATOR TESTS

4.1.1 Connect the TI CAL OUT through the low pass filter to the appropriate microwave counter input for a 100 MHz frequency.

4.1.2 Set the microwave counter for automatic frequency measurement with 1 Hz resolution, maximum sample rate, and 50  input impedance. Verify that the microwave counter indication is between 99.999990 and

100.000010 MHz (100 MHz +

4.1.3 Disconnect the TI CAL OUT from the low pass filter, and disconnect the low pass filter from the microwave counter.

10 Hz).

4.1.4 Connect the TI CAL OUT to the TI RF INPUT.

NAVAIR 17–20AW–232

4.1.5 Set the TI VERTICAL DISPLAY to 2 dB/div and set the TI REF LEVEL to –15 dBm.

4.1.6 Set the TI RESOLUTION BANDWIDTH to 1 MHz, and adjust the TI CENTER FREQUENCY control to center the calibrator signal.

4.1.7 Depress the TI DIGITAL STORAGE SAVE A pushbutton.

4.1.8 Disconnect the TI CAL OUT from the TI RF INPUT. Connect the equipment as shown in Figure 1.

2.3

SIGNAL

GENERATOR

RF OUTPUT

2.2

LOW P ASS FILTER

IN OUT

RF INPUT

Figure 1. Calibrator T est Configuration

4.1.9 Adjust the signal generator controls for a 100 MHz output at –20 dBm.

4.1.10 Adjust the signal generator frequency controls to center the signal on the TI CRT.

4.1.11 Adjust the signal generator output level to align the amplitude of the signal generator signal with that of the stored TI calibrator signal.

4.1.12 Disconnect the TI RF INPUT from the low pass filter.

4.1.13 Zero and reference calibrator, the power meter, the power sensor (capable of 0 to 18 GHz operation), and then set the power meter CAL FACTOR switch to the power sensor calibration factor corresponding to 100 MHz (or as close as possible).

4.1.14 Connect the power meter and power sensor to the low pass filter output.

4.1.15 Verify that the power meter indicates between –19.7 and –20.3 dBm.

4.1.16 Adjust the signal generator amplitude controls for minimum output and disconnect the test setup.

4.2 COUNTER READOUT TESTS

4.2.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 20 kHz VER TICAL DISPLAY to 10 dB/div MIN RF ATTEN switch to 0 dB

NAVAIR 17–20AW–232

REF LEVEL to 0 dBm AUTO RESOLN function to ON (activated) VIDEO FILTER to WIDE DIGITAL STORAGE SAVE A function to OFF (deactivated) DIGITAL STORAGE VIEW B function to OFF (deactivated) MIN NOISE function to ON (activated)

4.2.2 Activate the TI COUNT RESOLN function (SHIFT, COUNTER pushbuttons) and enter 1 Hz via the TI Data Entry keypad.

4.2.3 Connect the TI CAL OUT to the TI RF INPUT.

4.2.4 Center the 100 MHz marker under the dot marker using the TI CENTER FREQUENCY control.

4.2.5 Activate the TI COUNTER function. Note the indication over several counts, and verify that the TI COUNTER indications are between 99,999,987 and 100,000,013 Hz (99,999,993 and 100,000,007 Hz, 494AP Models). Deactivate the TI COUNTER function.

4.2.6 Set the TI FREQUENCY SPAN/DIV control to 500 kHz and repeat steps 4.2.4 and 4.2.5.

4.2.7 Activate the TI COUNT RESOLN function (SHIFT, COUNTER pushbuttons) and enter 1 kHz for a TI counter resolution of 1 kHz.

4.2.8 Activate the TI COUNTER function. Note the indication over several counts, and verify that the TI COUNTER indications are between 99,999 and 100,001 kHz. Deactivate the TI COUNTER function.

4.2.9 Set the TI FREQUENCY SPAN/DIV control to 200 kHz and repeat steps 4.2.4 and 4.2.8.

4.2.10 Set the TI FREQUENCY SPAN/DIV control to 500 kHz. Activate the TI COUNT RESOLN function (SHIFT, COUNTER pushbuttons) and enter 1 Hz via the TI Data Entry keypad.

4.2.11 Repeat steps 4.2.4 and 4.2.5 for the following TI CAL OUT marker frequencies and verify that the TI COUNTER indications are within the tolerance limits listed (adjust the TI REF LEVEL as necessary).

TI CAL OUT

Marker Frequency

(MHz)

500 499,999,987 to 500,000,013 499,999,993 to 500,000,007

1000 999,999,987 to 1,000,000,013 999,999,993 to 1,000,000,007

4.2.12 Disconnect the TI CAL OUT from the TI RF INPUT and connect the equipment as shown in Figure 2.

494 Models

T olerance Limits

(Hz)

494AP Models

NAVAIR 17–20AW–232

2.6

SIGNAL SOURCE

RF OUTPUT

2.1

MICROWAVE

COUNTER

RF INPUT

* USE POWER SPLITTER CAPABLE

OF 0 TO 18 GHz OPERATION, AS APPLICABLE.

2.12*

POWER

SPLITTER

RF INPUT

Figure 2. Counter Readout T est Configuration

4.2.13 Set the signal source controls for a 1.7 GHz CW output at –10 dBm, and set the microwave counter for automatic frequency measurement with maximum resolution and maximum sample rate. Set the TI REF LEVEL +10 dBm.

4.2.14 Set the signal source for the following microwave counter indications. At each setting, use the methods from steps 4.2.4 and 4.2.5 and verify that the TI COUNTER indications are within the tolerance limits listed (adjust the TI REF LEVEL as necessary).

Microwave

Counter Indication

(GHz)

494 Models 494A Models

T olerance Limit

(Hz)

1.7 1,699,999,817 to 1,700,000,183 1,699,999,823 to 1,700,000,177

3.0 2,999,999,687 to 3,000,000,313 2,999,999,693 to 3,000,000,307

5.0 4,999,999,487 to 5,000,000,513 4,999,999,493 to 5,000,000,507

8.0 7,999,999,183 to 8,000,000,817 7,999,999,191 to 8,000,000,809

12.0 11,999,998,783 to 12,000,001,217 11,999,998,791 to 2,000,001,209

15.0 14,999,998,483 to 15,000,001,517 14,999,998,491 to 15,000,001,509

18.0 17,999,998,183 to 18,000,001,817 17,999,998,191 to 18,000,001,809

21.0* 20,999,997,883 to 21,000,002,117 20,999,997,891 to 21,000,002,109

* Skip this test if TI is only to be calibrated to 18 GHz.

NAVAIR 17–20AW–232

4.3 CENTER FREQUENCY TESTS

4.3.1 Set the signal source output level to 0 dBm, and the frequency for a 500 MHz microwave counter indication.

4.3.2 Set the TI controls as follows:

CENTER FREQUENCY control to 500 MHz FREQUENCY SPAN/DIV control to 500 kHz MIN RF ATTEN switch to 0 dB REF LEVEL to +15 dBm VIDEO FILTER to NARROW RESOLUTION BW to 1 MHz

4.3.3 Press the TI COUNT –> CF pushbutton and wait until the TI COUNT –> CF light extinguishes. Change the TI RESOLUTION BANDWIDTH to 10 kHz.

4.3.4 Verify that the signal is within +115.05 kHz (+0.23 divisions) from the TI CRT center vertical graticule line.

4.3.5 Set the TI FREQUENCY RANGE and the signal source for the following settings. At each setting, use the methods described in steps 4.3.3 and 4.3.4 and verify that the difference between the TI CRT center vertical graticule line and the signal is within the tolerance limits listed.

FREQUENCY RANGE

Setting

(GHz)

0 to 1.8 1.0 1.0 + 0 to 1.8 1.5 1.5 ”

1.7 to 5.5 3.5 3.5 ”

3.0 to 7.1 5.0 5.0 ”

5.4 to 18 10.0 10.0 +

5.4 to 18 15.0 15.0 ” 15 to 21 18.0 18.0 ” 15 to 21* 21.0 21.0 ”

* Skip this test if the TI is only to be calibrated to 18 GHz.

4.3.6 Set the TI RESOLUTION BANDWIDTH to 10 kHz and the FREQUENCY SPAN/DIV switch to 100

kHz.

CENTER

FREQUENCY

(GHz)

Signal Source

Frequency

(GHz)

T olerance Limits

(GHz)

0.23

0.29

4.3.7 Set the TI FREQUENCY RANGE, to the following settings. Adjust the signal source for a frequency counter indication of the following value. At each setting press the TI COUNT –> CF pushbutton and wait until the TI COUNT –> CF light extinguishes, and verify that the difference between the TI CRT center vertical graticule and the signal is within the following tolerance limits.

NAVAIR 17–20AW–232

FREQUENCY RANGE

0 to 1.8 0.5 0.5 +0.20 0 to 1.8 1.0 1.0 + 0 to 1.8 1.5 1.5 +0.21

1.7 to 5.5 3.5 3.5 +

3.0 to 7.1 5.0 5.0 +

5.4 to 18 10.0 10.0 +

5.4 to 18 15.0 15.0 +0.35 15 to 21 18.0 18.0 + 15 to 21 * 21.0 21.0 +

* Skip this test if the TI is only to be calibrated to 18 GHz.

4.3.8 Set the signal source output amplitude control for minimum output and disconnect the test setup.

Setting

(GHz)

CENTER

FREQUENCY

(GHz)

Signal Source

Frequency

(GHz)

T olerance Limits

(Div)

0.21

0.24

0.25

0.30

0.38

0.41

4.4 CRT DISPLAY TESTS

4.4.1 Set the TI controls as follow:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 20 kHz REF LEVEL to +10 dBm MIN RF ATTEN to 0 dB MIN NOISE to Activated PEAK/AVERAGE control to Full clockwise position RESOLUTION BW to 10 kHz VIDEO FILTER to NARROW

4.4.2 Connect the equipment as shown in Figure 3.

2.3

SIGNAL

GENERATOR

OUTPUT

INPUT

STEP ATTENUATOR

2.7

Figure 3. CRT Display Test Configuration

NAVAIR 17–20AW–232

4.4.3 Set the signal generator controls for a 100 MHz output at +10 dBm, and set both of the step attenuators to

0 dB.

4.4.4 Carefully adjust the signal generator output so that the signal peak is aligned with the top TI CRT

graticule line.

4.4.5 Increase the external attenuation with the step attenuators to 80 dB in 10 dB steps. Verify that the

displayed signal steps down in 10 dB steps (+

4.4.6 Verify the the maximum cumulative error over the TI CRT display from top to bottom does not exceed

2.0 dB.

4.4.7 Return the external attenuation to 0 dB. Set the TI VERTICAL DISPLAY to 2 dB/div, and deactivate the

TI MIN NOISE function.

4.4.8 Set the TI RESOLUTION BANDWIDTH to 100 kHz, and carefully adjust the signal generator output so

that the signal peak is aligned with the top TI CRT graticule line.

4.4.9 Increase the external attenuation with the step attenuators to 16 dB in 2 dB steps. Verify that the

displayed signal steps down in 2 dB steps (+

4.4.10 Verify that the maximum cumulative error over the TI CRT display from top to bottom does not exceed

1.0 dB.

1 dB/10 dB).

0.4 dB/2 dB).

4.4.11 Return the external attenuation to 0 dB, and set the TI VERTICAL DISPLAY to LIN.

4.4.12 Carefully adjust the signal generator output so that the signal peak is aligned with the top TI CRT

graticule line.

4.4.13 Increase the external attenuation with the step attenuators to 6 dB. Verify that the displayed signal steps

down to within +

4.4.14 Increase the external attenuation with the step attenuators to 12 dB. Verify that the displayed signal steps

down to within +

4.4.15 Increase the external attenuation with the step attenuators to 18 dB. Verify that the displayed signal steps

down to within +

4.4.16 Set the TI VERTICAL DISPLAY to 10 dB/div, and disconnect the equipment from the TI.

0.4 div of the center TI CRT horizontal graticule.

0.4 div of the TI CRT quarter screen (2 division above the TI CRT bottom).

0.4 div of the TI CRT eighth screen (1 division above the TI CRT bottom).

NAVAIR 17–20AW–232

4.5 FREQUENCY SPAN TESTS

If the comb generator is to be used, proceed with step 4.5.1. If the signal generator or signal source is to be used, skip to step 4.5.2.

4.5.1 Frequency Span T ests Using a Comb Generator

4.5.1.1 Set the TI controls as follows:

CENTER FREQUENCY control to 1.0 GHz (2.0 GHz if the

FREQUENCY SPAN/DIV control to 200 MHz REF LEVEL to –20 dBm AUTO RESOLN function to ON (activated) MIN NOISE function to ON (activated)

NOTE

TI is a 494A series)

PEAK/AVERAGE control to Fully ccw

4.5.1.2 Connect the equipment as shown in Figure 4.

2.8

COMB

GENERATOR

MODULATION OUTPUT

2.9

FUNCTION

GENERATOR

2.10 TEE

RF INPUT

2.1

MICROWAVE

COUNTER

INPUTOUTPUT

Figure 4. Frequency Span T est Configuration

4.5.1.3 Set the comb generator frequency controls to 100 MC, adjust the interpolation amplitude–1 MC control

to off and the output amplitude control for a TI signal display of approximately 3 div amplitude.

4.5.1.4 Adjust the TI CENTER FREQUENCY control to position the second comb signal (at 200 MHz) at the

second from the left TI vertical graticule line.

NAVAIR 17–20AW–232

NOTE

The first comb signal (at 100 MHz) should be positioned halfway between the TI CRT leftmost vertical graticule and second from the left vertical graticule.

4.5.1.5 Verify that the TI indicates that the 18th comb signal is between 7.6 and 8.4 divisions from the second

comb signal.

4.5.1.5.1 If the TI is a 494A series, set the CENTER FREQUENCY to 1.0 GHz.

4.5.1.6 Set the TI FREQUENCY SPAN/DIV switch and the comb generator frequency controls to the following settings. At each setting, adjust the TI CENTER FREQUENCY control to position the indicated comb signal at the given TI vertical graticule line, and verify that the TI indicates that the difference between the listed comb signals is within the tolerance limits listed.

NOTE

Adjust the comb generator output amplitude, the TI REF LEVEL, and the RESOLUTION BANDWIDTH as necessary to maintain a clear comb display.

FREQUENCY

SPAN/DIV

Switch Setting

Comb Generator

Frequency Setting

(MC)

Difference Between

Comb Signals

(numbers)

T olerance Limits

(divisions)

100 MHz 100 2 – 10 ** 7.6 to 8.4 50 ” 100 1 – 5* ” 20 ” 10 3 – 19 *** ” 10 ” 10 2 – 10 ** ” 5 ” 10 1 – 5* ”

2” 1 3–19 *** ”

1” 1 2–10 ** ”

500 kHz 1 1 – 5* ”

* Align the first comb signal with the second from the left TI CRT vertical graticule line.

** Align the second comb signal with the second from the left TI CRT vertical graticule line.

*** Align the third comb signal with the second from the left TI CRT vertical graticule line.

4.5.1.7 Set the comb generator frequency controls to 10 MC, and adjust the interpolation amplitude

– 1 MC control to mid position.

4.5.1.8 Adjust the function generator frequency controls for a 200.0 kHz electronic counter indication.

4.5.1.9 Set the TI FREQUENCY SPAN/DIV switch to 200 kHz, adjust the function generator amplitude, and

the comb generator interpolation amplitude–1 MC, controls to obtain the best possible TI comb signal display.

4.5.1.10 Adjust the TI CENTER FREQUENCY control to position the second comb signal at the second from the left TI vertical graticule line. Verify that the TI indicates that the tenth comb signal is between 7.6 and 8.4 divisions from the second comb signal.

NAVAIR 17–20AW–232

4.5.1.11 Set the TI FREQUENCY SPAN/DIV switch to the following settings and adjust the function generator frequency control for the electronic counter indications listed. At each setting, adjust the TI CENTER FREQUENCY control to position the indicated comb signal at the given TI vertical graticule line, and verify that the TI indicates that the difference between the listed comb signals is within the tolerance limits listed.

Adjust the comb generator interpolation amplitude and the function generator output amplitude controls as necessary to maintain a good comb display.

FREQUENCY

SPAN/DIV

Switch Setting

100 MHz 200 1 – 5 ** 7.6 to 8.4 50 ” 50 2 – 10 * ” 20 ” 20 2 – 10 *** ” 10 ” 20 1 – 5** ” 5” 5.0 2–10 * ”

NOTE

Comb Generator

Frequency Setting

(MC)

2” 2.0 2–10 *** ”

Difference Between

Comb Signals

(numbers)

T olerance Limits

(divisions)

* Align the first comb signal with the second from the left TI CRT vertical graticule line.

** Align the second comb signal with the second from the left TI CRT vertical graticule line.

4.5.1.12 Adjust the function generator and comb generator amplitude controls for minimum output and

disconnect the equipment from the TI.

4.5.1.13 Skip to subsection 4.6.

4.5.2. Frequency Span T ests Using a Signal Generator or Signal Source

4.5.2.1 Set the TI controls as follows:

CENTER FREQUENCY control to 1.0 GHz (2.0 GHz if the

TI is a 494A series) FREQUENCY SPAN/DIV control to 200 MHz REF LEVEL to –20 dBm AUTO RESOLN function to ON (activated) MIN NOISE function to ON (activated) PEAK/AVERAGE control to Fully ccw

NOTE

Select the signal generator (item 2.3) or signal source (item 2.6) as applicable to the test frequency .

NAVAIR 17–20AW–232

4.5.2.2 Connect the signal generator/source output to the TI RF INPUT.

4.5.2.3 Set the signal generator/source for a –25 dBm signal at 200 MHz (1.2 GHz if the TI is a 494A series).

4.5.2.4 Adjust the TI CENTER FREQUENCY control to position the signal generator/source signal at the

second from the left TI vertical graticule line.

NOTE

All TI CRT vertical graticule references count the far left graticule as the first (1st) graticule, which would imply that the far right graticule is the eleventh (11th) graticule.

4.5.2.5 Set the signal generator/source frequency to 1.8 GHz (2.8 GHz if the TI is a 494A series).

4.5.2.6 Verify that the TI indicates that the signal generator/source signal (at the 10th vertical graticule line

from the left) is within +0.4 divisions of the 10th vertical graticule line.

4.5.2.6.1 If the TI is a 494A series, set the CENTER FREQUENCY to 1.0 GHz.

4.5.2.7 Set the TI FREQUENCY SPAN/DIV switch to the following settings. At each setting, first set the signal generator/source for the “Left” frequency, adjust the TI CENTER FREQUENCY control to position the indicated “Left” signal at the second TI vertical graticule line, then set the signal generator/source frequency to the “Right” frequency settings and verify that the signal is within +0.4 divisions of the 10th vertical graticule.

NOTE

Adjust the TI REF LEVEL and RESOLUTION BANDWIDTH as necessary to maintain a clear signal display.

FREQUENCY

SPAN/DIV

Switch Setting

100 MHz 600.000 1400.000

50 ” 800.000 1200.000 20 ” 920.000 1080.000 10 ” 960.000 1040.000

5 ” 980.000 1020.000 2 ” 992.000 1008.000

1 ” 996.000 1004.000 500 kHz 998.000 1002.000 200 ” 999.200 1000.800 100 ” 999.600 1000.400

50 ” 999.800 1000.200 20 ” 999.920 1000.080 10 ” 999.960 1000.040

5 ” 999.980 1000.020

2 ” 999.992 1000.008

“Left”

Frequency Setting

(MHz)

Signal Generator/Source

“Right”

Frequency Setting

(MHz)

4.5.2.8 Adjust the signal generator/source amplitude controls for minimum output and disconnect the equipment

from the TI.

NAVAIR 17–20AW–232

4.6 RF ATTENUATOR TESTS

4.6.1 Connect the equipment as shown in Figure 5.

Use the shortest cable possible in the connection between the power splitter and the TI RF INPUT connector. Do not use adapters.

NOTE

INPUT

* USE POWER SPLITTER CAPABLE

OF 0 TO 18 GHZ OPERATION, AS APPLICABLE.

4.6.2 Set the TI controls as follows:

CENTER FREQUENCY control to 1 GHz

2.3

SIGNAL

GENERATOR

OUTPUT

2.12*



POWER

SPLITTER



Figure 5. RF Attenuator T est Configuration

2.13

CALIBRATOR

2.11

10 DB ATTEN.

SENSOR

MODULE

P/O

2.13

FREQUENCY SPAN/DIV control to 500 kHz RESOLUTION BANDWIDTH to 100 kHz REF LEVEL to +21 dBm MIN RF ATTEN switch to 0 dB (60 dB on TI CRT display) VER TICAL DISPLAY to 10 dB/div WIDE VIDEO FILTER to ON (activated) MIN NOISE to OFF (deactivated)

4.6.3 Set the signal generator for a +12 dBm signal at 1 GHz.

4.6.4 Program the calibrator INSTR PRESET function (BLUE Shift and GREEN Automatic Operation buttons). Enter on the calibrator: 27.3 SPCL 0 MHz, and ensure that the calibrator indication is approximately 1000 MHz. Set the calibrator for TUNED RF LEVEL measurements with log (dBm) display, enter 39.9 SPCL, and press the CALIBRATE button.

4.6.5 Decrease the signal generator output level until the calibrator displays RECAL. Press the calibrator CALIBRATE button.

NAVAIR 17–20AW–232

4.6.6 Decrease the signal generator output level again until the calibrator displays RECAL. Again, press the calibrator CALIBRATE button.

4.6.7 Adjust the signal generator output level for a –9 dBm calibrator indication.

4.6.8 Adjust the TI CENTER FREQUENCY control to center the displayed signal. Decrease the TI FREQUENCY SPAN/DIV setting to 20 kHz, while keeping the signal centered on the display with the TI CENTER FREQUENCY control.

4.6.9 Adjust the signal generator output level to align the signal displayed on the TI CRT with the nearest TI CR T horizontal graticule line. Note this line as the reference.

4.6.10 Program the calibrator SET REF function (BLUE Shift and ZERO keys). Ensure that the calibrator indicates 0.00 dB (+

4.6.11 Set the TI REF LEVEL control for a +11 dBm CRT readout. Decrease the signal generator output level to align the signal to the same TI CRT graticule line noted in step 4.6.9.

4.6.12 Verify that the calibrator indication is between –9.7 and –10.3 dB (–9.5 and –10.5 dB if the TI is a 494A series). Note the calibrator indication.

4.6.13 Set the TI REF LEVEL control for a +1 dBm CRT readout. Decrease the signal generator output level to align the signal to the same TI CRT graticule line noted in step 4.6.9.

0.01 dB).

4.6.14 Verify that the calibrator indication is between –19.4 and –20.6 dB (–19.0 and –21.0 dB if the TI is a 494A series). Note the calibrator indication.

4.6.15 Repeat steps 4.6.13 and 4.6.14 for the following TI REF LEVEL control settings. At each setting, verify that the calibrator indication is within the tolerance limits listed. Note the calibrator indication.

REF LEVEL

Control Setting

(dBm)

–9 –29.3 to –30.7 –29.0 to –31.0 –19 –39.3 to –40.7 –39.0 to –41.0 –29 –49.3 to –50.7 –49.0 to –51.0 –39 –59.3 to –60.7 –59.0 to –61.0

4.6.16 Verify that the difference between any two adjacent calibrator indications noted in steps 4.6.12, 4.6.14,

and 4.6.15 is 9.7 to 10.3 dB (–9.5 and –10.5 dB if the TI is a 494A series).

4.6.17 Repeat step 4.6.2, except set the TI CENTER FREQUENCY to 10 GHz.

4.6.18 Set the signal generator output to minimum, and replace the signal generator in the test setup with the

signal source.

Model 494

Calibrator

T olerance Limits

(dB)

Model 494A

Calibrator

T olerance Limits

(dB)

4.6.19 Set the signal source for a +8 dBm signal at 10 GHz.

4.6.20 Program the calibrator INSTR PRESET function (BLUE Shift and GREEN Automatic Operation buttons). Set the external LO of the calibrator to 10120.53 MHz. Enter on the calibrator: 27.3 SPCL 10120.53 MHz, and ensure that the calibrator indication is approximately 10000 MHz. Set the calibrator for TUNED RF LEVEL measurements with log (dBm) display, enter 39.9 SPCL, and press the CALIBRATE button.

NAVAIR 17–20AW–232

4.6.21 Repeat steps 4.6.5 through 4.6.15, except use the signal source and verify that the calibrator indication is within the following tolerance limits for the TI REF LEVEL control settings listed.

REF LEVEL

Control Setting

(dBm)

+11 –9.5 to –10.5 –8.5 to –11.5

+1 –19.0 to –21.0 –17.0 to –23.0

–9 –28.6 to –31.4 –27.0 to –33.0

–19 –38.6 to –41.4 –37.0 to –43.0 –29 –48.6 to –51.4 –47.0 to –53.0 –39 –58.6 to –61.4 –57.0 to –63.0

4.6.22 Verify that the difference between any two adjacent calibrator indications noted in step 4.6.21 is 9.5 to

10.5 dB.

4.6.23 Repeat step 4.6.2, except set the TI CENTER FREQUENCY to 15 GHz.

4.6.24 Set the signal source for a +8 dBm signal at 15 GHz.

4.6.25 Program the calibrator INSTR PRESET function (BLUE Shift and GREEN Automatic Operation buttons). Set the external LO of the calibrator to 15120.53 MHz. Enter on the calibrator: 27.3 SPCL 15120.53 MHz, and ensure that the calibrator indication is approximately 10000 MHz. Set the calibrator for TUNED RF LEVEL measurements with log (dBm) display, enter 39.9 SPCL, and press the CALIBRATE button.

Model 494

Calibrator

T olerance Limits

(dB)

Model 494A

Calibrator

T olerance Limits

(dB)

4.6.26 Repeat steps 4.6.21 and 4.6.22.

4.6.27 Adjust the signal source output level for minimum output but do not disconnect the test setup. Replace the signal source in the test setup with the signal generator.

4.7 IF GAIN TESTS

4.7.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 10 kHz REF LEVEL to –10 dBm VER TICAL DISPLAY to 1 dB/div VIDEO FILTER to WIDE RESOLUTION BANDWIDTH switch to 10 kHz MIN NOISE to OFF (deactivated)

4.7.2 Set the signal generator for a +5 dBm signal at 100 MHz.

NAVAIR 17–20AW–232

4.7.3 Program the calibrator INSTR PRESET function (BLUE Shift and GREEN Automatic Operation buttons). Enter on the calibrator: 27.3 SPCL 0 MHz, and ensure that the calibrator indication is approximately 100 MHz. Set the calibrator for TUNED RF LEVEL measurements with log (dBm) displays, enter 39.9 SPCL, and press the CALIBRATE button.

4.7.4 Decrease the signal generator output level until the calibrator displays RECAL. Press the calibrator CALIBRATE button.

4.7.5 Decrease the signal generator output level again until the calibrator displays RECAL. Press the calibrator CALIBRATE button.

4.7.6 Adjust the signal generator output level for a –12 dBm TI CRT display (signal is two graticules below top TI CRT graticule). Note this graticule as the reference.

4.7.7 Activate the TI MIN NOISE function and verify that the signal amplitude change is <+ (<0.4 minor divisions) on the TI CRT.

4.7.8 Adjust the signal generator output level to reposition the signal level to the TI CRT reference line, if necessary.

4.7.9 Program the calibrator SET REF function (BLUE Shift and ZERO buttons). Ensure that the calibrator indicates 0.00 dB (+

4.7.10 Set the TI REF LEVEL control to following settings. At each setting, decrease the signal generator output level to align the signal to the same TI CRT graticule line noted in step 4.7.6, and verify that the calibrator indication is within the tolerance limits listed, Note the exact calibrator relative indication at each TI REF LEVEL setting.

0.01 dB).

TI CRT REF LEVEL

Readout Indication

(dBm)

–11 –0.8 to –1.2 –12 –1.6 to –2.4 –13 –2.5 to –3.5 –14 –3.5 to –4.5 –15 –4.5 to –5.5 –16 –5.5 to –6.5 –17 –6.5 to –7.5 –18 –7.5 to –8.5 –19 –8.5 to –9.5 –20 –9.0 to –11.0

T olerance Limits

(dB)

0.8 dB

4.7.11 Verify that the difference between any two calibrator relative indications recorded in step 4.7.10 for adjacent steps of the TI REF LEVEL from –11 to –19 dBm is between 0.8 and 1.2 dB.

4.7.12 Verify that difference between any two calibrator relative indications recorded in step 4.7.10 for the TI REF LEVEL settings of –19 and –20 dBm is between 0.5 and 1.5 dB.

4.7.13 Adjust the signal generator output level to reposition the signal level to the TI CRT reference line, if necessary.

4.7.14 Program the calibrator SET REF function (BLUE Shift and ZERO buttons). Ensure that the calibrator indicates 0.00 dB (+

0.01 dB).

NAVAIR 17–20AW–232

4.7.15 Set the TI REF LEVEL control to following settings. At each setting, decrease the signal generator output level to align the signal to the same TI CRT graticule line noted in step 4.7.13, and verify that the calibrator indication is within the tolerance limits listed. Note the exact calibrator relative indication at each TI REF LEVEL setting.

* Activate the TI NARROW VIDEO FIL TER function.

** Decrease the TI RESOLUTION BANDWIDTH to 1 kHz and the FREQUENCY SP AN/DIV

to 200 Hz, while keeping the displayed signal centered on the TI display using the TI CENTER FREQUENCY control. Adjust the signal generator output level to reposition the signal level to the TI CRT reference line, if necessary.

4.7.16 Verify that the difference between any two calibrator relative indications in step 4.7.15 for adjacent steps of the TI REF LEVEL from –30 to –80 dBm is between 9.0 and 11.0 dB.

TI CRT REF LEVEL

Readout Indication

(dBm)

–30 –9.0 to –11.0 –40 –18.0 to –22.0 –50 –28.0 to –32.0 –60 –38.0 to –42.0 –70 * –48.0 to –52.0 –80 ** –58.0 to –62.0

T olerance Limits

(dB)

4.7.17 Adjust the signal generator output level controls for minimum and disconnect the test setup.

4.8 FREQUENCY RESPONSE TESTS

4.8.1 Set the TI controls as follows:

CENTER FREQUENCY control to 250 kHz FREQUENCY SPAN/DIV control to 50 kHz MIN RF ATTEN switch to 30 dB REF LEVEL to 0 dBm TIME/DIV switch to AUTO VER TICAL DISPLAY to 1 dB/div RESOLUTION BANDWIDTH to 10 kHz MIN NOISE function to OFF (deactivated)

4.8.2 Ensure that the oscillator amplitude controls are set to minimum and connect the oscillator 50  output to the TI RF INPUT.

4.8.3 Set the oscillator output frequency to 100 kHz. Adjust the oscillator output level controls to set the 100 kHz signal for a TI CRT 4.0 division signal display. Note the TI CR T horizontal graticule associated with the signal level as the reference graticule, and the oscillator output level indication.

4.8.4 Activate the TI VIEW A, and MAX HOLD functions.

4.8.5 Adjust the oscillator frequency slowly from 10 kHz to 500 kHz, while maintaining the oscillator output level noted in step 4.8.3.

NAVAIR 17–20AW–232

4.8.6 Note the TI frequency response (amplitude deviation above and below the reference graticule established in step 4.8.3). Verify that the frequency response is within +

1.5 dB of the reference graticule from 50 kHz to 500 kHz, and +2.0 dB from 10 kHz to 500 kHz (+1.5 dB from 10 kHz to 500 kHz, for TI 494A Models). Deactivate the TI MAX HOLD function.

4.8.7 Set the TI CENTER FREQUENCY control to 5 MHz, the FREQUENCY SPAN/DIV control to

1 MHz, and the AUTO RESOLN function to ON (activated).

4.8.8 Set the oscillator output frequency to 2 MHz. Adjust the oscillator output level controls to set the 2 MHz signal for a TI CRT 4.0 division signal display. Note the TI CR T horizontal graticule associated with the signal level as the reference graticule, and the oscillator output level indication.

4.8.9 Activate the TI VIEW A, and MAX HOLD functions.

4.8.10 Adjust the oscillator frequency slowly from 500 kHz to 10 MHz, while maintaining the oscillator output level noted in step 4.8.8.

4.8.11 Note the TI frequency response (amplitude deviation above and below the reference graticule established in step 4.8.8). Verify that the frequency response is within +

1.5 dB of the reference graticule from 500 kHz to 10

MHz. Deactivate the TI MAX HOLD function.

4.8.12 Adjust the oscillator output level controls for minimum and disconnect the test setup.

4.8.13 Connect the equipment as shown in Figure 6.

Use cables of minimum length in the test setup.

2.6

SIGNAL

SOURCE

EXTERNAL

LEVELING

(EXT ALC)

RECORDER

OUT

OUTPUT

2.4

POWER METER

NOTE

2.15*

3 DB ATTEN.

2.5*

POWER

SENSOR



2.12*

POWER

SPLITTER

INPUT



* USE THE ITEMS CAPABLE

OF 0 TO 18 GHZ OPERATION, UNLESS OTHERWISE INSTRUCTED.

Figure 6. Frequency Response T est Configuration

NAVAIR 17–20AW–232

4.8.14 Set the TI controls as follows:

CENTER FREQUENCY control to 1 GHz FREQUENCY SPAN/DIV control to 200 MHz

4.8.15 Set the signal source controls for external (meter) leveling.

4.8.16 Adjust the signal source controls for a 1 GHz, 4 division TI CRT signal display. Note the TI CR T horizontal graticule associated with the signal level as the reference graticule. Set the power meter RANGE HOLD button to ON (depressed), if applicable.

4.8.17 Set the signal source controls for a 10 MHz to 1.8 GHz, 100 second sweep (or slowest time possible), and activate the TI VIEW A, and MAX HOLD functions.

4.8.18 Note the TI frequency response (amplitude deviation above and below the reference graticule established in step 4.8.16). Verify that the frequency response is within +

1.8 GHz. Deactivate the TI MAX HOLD function.

NOTE

T o view the signal, it may be necessary to increase the TI INTENSITY momentarily.

1.5 dB of the reference graticule from 10 MHz to

4.8.19 Set the TI VERTICAL DISPLAY to 2 dB/div.

4.8.20 Use the methods described in steps 4.8.16 through 4.8.18 for the following TI FREQUENCY RANGE, CENTER FREQUENCY, and signal source sweep range. Verify that the TI frequency response is within the tolerance limits listed.

NOTE

Prior to testing the frequency response on each TI FREQUENCY RANGE, set the signal source for CW output at the TI CENTER FREQUENCY setting and set the signal source output level for a 4 division TI CRT signal display (it may be necessary to increase the TI INTENSITY momentarily, to view the signal) and then activate the TI AUTO PEAK function. Note the TI CR T horizontal graticule associated with the signal level as the reference graticule. Set the power meter RANGE HOLD button to OFF (released) and then back to ON (depressed), if applicable.

FREQUENCY

RANGE Setting

(GHz)

1.7 to 5.5 2.7 1.7 to 3.7 +2.5 ” 4.5 3.5 to 5.5 +

3.0 to 7.1 4.0 3.0 to 5.0 + ” 6.0 5.0 to 7.0 +

5.4 to 18 7.9* 5.4 to 10.4 + ” 12.9 10.4 to 15.4 + ” 15.5 13.0 to 18.0 +

5 to 21 16.5 15.0 to 18.0 +

” ** 19.5 18.0 to 21.0 +

CENTER

FREQUENCY

(GHz)

Signal Source Sweep Range

(GHz)

T olerance Limits

(dB)

2.5

3.5

5.0

* Set the TI FREQUENCY SPAN/DIV control to 500 MHz.

** Prior to this test, reconnect the equipment shown in Figure 6, except use the items capable of

18 to 21 GHz operation, only if the TI is to be calibrated to 21 GHz; otherwise skip this test.

4.8.21 Adjust the signal source amplitude controls for minimum output and disconnect the test setup.

4.9 EQUIVALENT INPUT NOISE SENSITIVITY TESTS

NOTE

If the TI is a Model 494, then proceed with step 4.9.1. If the the TI is a Model 494A, then skip to step 4.9.2.

4.9.1 Equivalent Input Noise Sensitivity T est For TI 494 and 494P Models

4.9.1.1 Set the TI controls as follows:

CENTER FREQUENCY control to 1000 MHz FREQUENCY SPAN/DIV control to 5 MHz VER TICAL DISPLAY to 10 dB/div MIN RF ATTEN switch to 0 dB REF LEVEL to –60 dBm

NAVAIR 17–20AW–232

RESOLUTION BANDWIDTH to 1 MHz VIDEO FILTER to WIDE TIME/DIV switch to 1 s MAX HOLD function to OFF (deactivated) PEAK/AVERAGE control to full clockwise position

4.9.1.2 Verify that the TI CRT display average noise level is –80 dBm maximum.

4.9.1.3 Set the TI FREQUENCY SPAN/DIV control to 1 MHz, and the RESOLUTION BANDWIDTH control

to 100 kHz.

4.9.1.4 Verify that the TI CRT display average noise level is –90 dBm maximum.

4.9.1.5 Set the TI RESOLUTION BANDWIDTH to 10 kHz. Verify that the TI CRT display average noise level

is –100 dBm maximum.

4.9.1.6 Set the TI controls as follows:

FREQUENCY SPAN/DIV control to 10 kHz TIME/DIV switch to AUTO RESOLUTION BANDWIDTH to 1 kHz VIDEO FILTER to NARROW

4.9.1.7 Verify that the TI CRT display average noise level is –110 dBm maximum.

4.9.1.8 Set the TI controls as follows:

REF LEVEL to –70 dBm FREQUENCY SPAN/DIV control to 100 Hz RESOLUTION BANDWIDTH to 100 Hz

NAVAIR 17–20AW–232

4.9.1.9 Verify that the TI CRT display average noise level is –118 dBm maximum.

4.9.1.10 Set the TI FREQUENCY SPAN/DIV control to 50 Hz, and the RESOLUTION BANDWIDTH control

to 30 Hz.

4.9.1.11 Verify that the TI CRT display average noise level is –121 dBm maximum.

4.9.1.12 Repeat steps 4.9.1.1 through 4.9.1.11 for the following TI FREQUENCY RANGE and CENTER

FREQUENCY settings. Verify that the TI CRT display average noise level is within the tolerance limits listed.

FREQUENCY

RANGE Setting

(GHz)

1.7 to 5.5 3.6 1 MHz < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 30 ” <

3.0 to 7.1 5.0 1 MHz < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 30 ” <

5.4 to 18.0 8.7* 1 MHz < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 30 ” <

5.4 to 18.0 15.0* 1 MHz < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 30 ” <

15.0 to 21.0 18.0* 1 MHz < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 30 ” <

CENTER

FREQUENCY

(GHz)

RESOLUTION BANDWIDTH

T olerance Limits

(dB)

–80

–90 –100 –110 –118 –121

–80

–90 –100 –110 –118 –121

–65

–75

–85

–95 –103 –106

–60

–70

–80

–90

–98 –101

–55

–65

–75

–85

–93

–96

* Set the TI REF LEVEL to –50 dBm before performing the noise level test in this frequency band.

4.9.1.13 Skip to subsection 4.10.

4.9.2 Equivalent Input Noise Sensitivity T est For TI 494A Models

4.9.2.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 5 MHz VER TICAL DISPLAY to 10 dB/div MIN RF ATTEN switch to 0 dB REF LEVEL to –60 dBm RESOLUTION BANDWIDTH to 3 MHz VIDEO FILTER to WIDE TIME/DIV switch to 1 s MAX HOLD function to OFF (deactivated) PEAK/AVERAGE control to full clockwise position

4.9.2.2 Verify that the TI CRT display average noise level is –80 dBm maximum.

NAVAIR 17–20AW–232

4.9.2.3 Set the TI FREQUENCY SPAN/DIV control to 1 MHz, the RESOLUTION BANDWIDTH control to 1

MHz, and verify that the TI CRT display average noise level is –85 dBm maximum.

4.9.2.4 Set the TI RESOLUTION BANDWIDTH to 100 kHz. Verify that the TI CRT display average noise

level is –95 dBm maximum.

4.9.2.5 Set the TI RESOLUTION BANDWIDTH to 10 kHz. Verify that the TI CRT display average noise level

is –105 dBm maximum.

4.9.2.6 Set the TI controls as follows:

FREQUENCY SPAN/DIV control to 10 kHz TIME/DIV switch to AUTO RESOLUTION BANDWIDTH to 1 kHz VIDEO FILTER to NARROW

4.9.2.7 Verify that the TI CRT display average noise level is –115 dBm maximum.

4.9.2.8 Set the TI controls as follows:

REF LEVEL to –70 dBm FREQUENCY SPAN/DIV control to 100 Hz RESOLUTION BANDWIDTH to 100 Hz

4.9.2.9 Verify that the TI CRT display average noise level is –125 dBm maximum.

4.9.2.10 Set the TI FREQUENCY SPAN/DIV control to 10 Hz, the RESOLUTION BANDWIDTH control to

10 Hz, and verify that the TI CRT display average noise level is –134 dBm maximum.

NAVAIR 17–20AW–232

4.9.2.11 Repeat steps 4.9.2.1 through 4.9.2.10 for the following TI FREQUENCY RANGE and CENTER

FREQUENCY settings. Verify that the TI CRT display average noise level is within the tolerance limits listed.

FREQUENCY

RANGE Setting

(GHz)

1.7 to 5.5 3.6 3 MHz < ””1 ”< ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 10 ” <

3.0 to 7.1 5.0 3 MHz < ” ” 1 ” < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 10 ” <

5.4 to 18.0 8.7* 3 MHz < ””1 ”< ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 10 ” <

5.4 to 18.0 15.0* 3 MHz < ” ” 1 ” < ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 10 ” <

15.0 to 21.0 18.0* 3 MHz < ””1 ”< ” ” 100 kHz < ” ” 10 ” < ””1 ”< ” ” 100 Hz < ” ” 10 ” <

CENTER

FREQUENCY

(GHz)

RESOLUTION

BANDWIDTH

T olerance Limits

(dB)

–74 –79 –89 –99

–109

–119

–125

–74 –79 –89 –99

–109

–119

–125

–60 –65 –75 –85 –95

–105

–111

–55 –60 –70 –80

–90 –100 –107

–55

–60

–70

–80

–90 –100 –107

* Set the TI REF LEVEL to –50 dBm before performing the noise level test in this frequency band.

4.10 INTERMODULATION DISTOR TION TESTS

4.10.1 Set the TI controls as follows: CENTER FREQUENCY control to 1 GHz

FREQUENCY SPAN/DIV control to 50 MHz REF LEVEL to –30 dBm RESOLUTION BANDWIDTH to 100 kHz VIDEO FILTER to off (no filter activated) PEAK/AVERAGE control to Fully ccw

4.10.2 Connect the equipment as shown in Figure 7.

NAVAIR 17–20AW–232

2.3

SIGNAL

GENERATOR

OUTPUT

2.11

10 DB

ATTEN.

* USE POWER SPLITTER CAPABLE

OF 0 TO 18 GHZ OPERATION, AS APPLICABLE.



INPUT

SPLITTER

2.12*

POWER



2.11

10 DB

ATTEN.

2.3

SIGNAL

GENERATOR

OUTPUT

Figure 7. Intermodulation Distortion T est Configuration

4.10.3 Adjust the frequency controls of the two signal generators so one is set at 999.5 MHz and the other is set

to 1000.5 MHz. Set the output levels of both of the signal generators to –20 dBm.

4.10.4 Set the TI FREQUENCY SPAN/DIV switch to 500 kHz, and the RESOLUTION BANDWIDTH control

for a 10 kHz CRT read–out, while keeping both signals on the TI CRT using CENTER FREQUENCY control.

4.10.5 Adjust the output level controls of both signal generators to align the signal with the TI CRT top

graticule line.

4.10.6 Set the TI VIDEO FILTER to WIDE.

NOTE

Intermodulation products may not appear unless the input signal level is off the screen. Use the TI VIDEO FILTER and very slow sweep speed rates to help resolve these sidebands.

NAVAIR 17–20AW–232

This test cannot be performed using signal generators with excessive FM.

By momentarily increasing each signal generator output by 10 dB (or 20 dB), a false intermodulation product can be observed on the TI CRT display at either 2f Figure 8). After noting where to look for intermodulation products, return the signal generator output levels to the settings established in step 4.10.5.

4.10.7 Verify that the third order intermodulation products are more than 70 dB down from the input signals

(refer to Figure 8).

NOTES

or 2f2–f1 (see

1–f2

> 70 dB > 70 dB

–

REF.LEVEL

3RD ORDER PRODUCTS

Figure 8. Third Order Intermodulation Display

4.10.8 Adjust the output levels of both signal generators for minimum output and disconnect the test setup.

4.11 HARMONIC DISTORTION TEST

4.11.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 5 MHz REF LEVEL to –30 dBm (–40 dBm,

494A models)

RF ATTEN to 0 dB RESOLUTION BANDWIDTH to 1 MHz VER TICAL DISPLAY to 10 dB/div MIN DISTORTION to ON (activated) VIDEO FILTER to off (no filter activated) MIN DISTORTION to ON (activated)

NAVAIR 17–20AW–232

4.11.2 Connect the signal generator output through the low pass filter to the TI RF INPUT.

4.11.3 Set the signal generator frequency controls to 100 MHz and adjust the output level to align the signal

with the TI top horizontal graticule line.

4.11.4 Decrease the TI FREQUENCY SPAN/DIV control to 10 kHz, and the RESOLUTION BANDWIDTH to

1 kHz, while keeping the signal centered on the TI CRT display using the TI CENTER FREQUENCY control.

4.11.5 Set the TI CENTER FREQUENCY control to 200 MHz.

4.11.6 Set the TI VIDEO FILTER to WIDE and verify that any harmonic distortion is more than 60 dB down

from the TI CRT top horizontal graticule line.

NOTE

If necessary , momentarily increase the signal generator output level by 10 dB (or 20 dB) to identify on the TI CRT display where a harmonic distortion product might occur. Then return the signal generator output level to its original setting.

4.11.7 Adjust the signal generator output level for minimum output and disconnect the test setup.

4.12 NOISE SIDEBANDS TEST

4.12.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 10 MHz REF LEVEL to –20 dBm AUTO RESOLN switch to ON (activated) VIDEO FILTER to NARROW MIN DISTORTION to OFF (deactivated)

4.12.2 Connect TI CAL OUT connector to the TI RF INPUT connector.

4.12.3 Decrease the TI FREQUENCY SPAN/DIV switch to 10 kHz and the RESOLUTION BANDWIDTH

control for a 1 kHz TI CRT read–out. Keep the 100 MHz signal centered on the TI CRT display using the TI CENTER FREQUENCY control.

4.12.4 Set the TI REFERENCE LEVEL control for –40 dBm TI CRT read–out. This places the signal peak 20

dB above the TI CRT top graticule line.

4.12.5 Measure the noise level 30 kHz (+3 div to the left and –3 div to the right of the center frequency) away

from the 100 MHz signal. Verify that the noise sidebands are 75 dB (approximately 5 1/2 div below the TI CRT top graticule line) or more below the peak signal level (or approximately 55 dB or more below the TI CRT top graticule line). (See Figure 9).

NAVAIR 17–20AW–232

–20 dBm REF. LEVEL

NOISE > 75 dB DOWN

100

–30 KHZ +30 KHZ

( –3 DIV ) ( +3 DIV )

Figure 9. Sideband Noise Level Measurement Display

REF

–10

–20

–30

–40

–50

–60

–70

NOISE >75 dB DOWN

4.12.6 Disconnect the TI CAL OUT connector from the TI RF INPUT connector.

4.13 RESIDUAL RESPONSE TESTS

4.13.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 10 MHz REF LEVEL to –50 dBm RESOLUTION BANDWIDTH to 10 kHz VIDEO FILTER to off (no filter activated) PEAK/AVERAGE control to fully clockwise

4.13.2 Adjust the TI CENTER FREQUENCY control from a 100 MHz TI CRT read–out to a

1.8 GHz TI CRT read–out in 100 MHz increments. Verify that the residual responses do not exceed –100 dBm.

NOTE

Use the TI FREQUENCY ENTRY function (SHIFT, IDENT pushbuttons) to change the CENTER FREQUENCY in 100 MHz increments.

NOTE

The time to complete one sweep on the TI is approximately 20 seconds. Therefore, it will take approximately 20 seconds to test each 100 MHz span of the TI. T o assist the observer in knowing when the sweep has completed its 100 MHz sweep, it may be desirable to adjust the TI PEAK AVERAGE control slightly ccw to place the PEAK AVERAGE line near the top of the TI CR T display. The moving intensified dot indicates the position of the sweep. Another method of keeping track of the sweep is to use the TI SINGLE SWEEP function. Press the TI SINGLE SWEEP pushbutton once to activate the function and then press it again to start a sweep. The TI SINGLE SWEEP READY LED will illuminate when the TI is sweeping and will extinguish when the sweeping is finished.

4.14 RESIDUAL FM TESTS

4.14.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 1 MHz VER TICAL DISPLAY to 2 dB/div

NAVAIR 17–20AW–232

REF LEVEL to –20 dBm RESOLUTION BANDWIDTH to 100 kHz VIDEO FILTER to WIDE TIME/DIV switch to AUTO TRIGGERING to FREE RUN PEAK/AVERAGE control to fully clockwise

4.14.2 Connect the TI CAL OUT to the TI RF INPUT.

4.14.3 Press the TI SHIFT, then FREE RUN pushbuttons. (If the TI is a 494A series, press the TI SHIFT and

the 10 dB/div pushbuttons.)

NOTE

A message “FREQUENCY CORRECTION DISABLED” will appear in the TI CRT display, which indicates that the 1st LO synthesis and phase lock are disabled; this is normal. It is now possible to switch the FREQUENCY SPAN/DIV control to narrower spans with the phase lock disabled.

4.14.4 Progressively adjust the TI FREQUENCY SPAN/DIV and RESOLUTION BANDWIDTH controls both

down to 10 kHz, while keeping the 100 MHz signal centered on the TI CRT with the CENTER FREQUENCY control.

4.14.5 Set the TI VERTICAL DISPLAY LIN switch to on.

NAVAIR 17–20AW–232

It may be necessary at times throughout this test to activate the TI BASELINE CLIP function in order to see the TI CRT RESOLUTION BANDWIDTH read–out.

4.14.6 Position the 100 MHz signal, using the TI CENTER FREQUENCY control, so that the left hand sloping

edge of the signal is positioned to cross the TI CRT center vertical graticule at the –20 REF horizontal graticule (2 divisions below the TI CRT top horizontal graticule line). (See Figure 10).

It may help to position the signal by using the TI SAVE A function to freeze and unfreeze the signal display until it is at the desired point on TI CRT display.

NOTE

100

–20 dBm

4 DIV.

2.00 mV/

0.8 DIV.

10 DB

100 MHZ

10 KHZ/

10 KHZ0–1.8

REF

–10

–20

–30

–40

–50

–60

–70

L O G

Figure 10. Calculating Slope for Residual FM Measurement

4.14.7 Continue down the left hand slope of the 100 MHz signal and note where the slope crosses the TI CRT

–60 REF horizontal graticule line (2 division above the TI CRT bottom horizontal graticule line). Measure and record the number of vertical divisions (horizontal deflection) from the TI CRT center vertical graticule to the point where the signal slope crosses the TI CRT –60 REF horizontal graticule line. (See Figure 10).

4.14.8 Calculate the slope of the signal using the following formula. Record this calculated slope.

SlopeĂ Ă

divĂ measuredĂ inĂ stepĂ 4.14.7Ă xĂ TIĂ FREQUENCYĂ SPANDIVĂ setting

4Ă divisions

Example:

Using values from Figure 10

SlopeĂ Ă

0.8Ă divĂ xĂ 10Ă kHzdiv

4Ă divisions

Ă Ă2ĂkHzdiv

NAVAIR 17–20AW–232

4.14.9 Depress the TI ZERO SPAN pushbutton, set the TIME/DIV switch to 20 ms, and deactivate the TI SAVE

A function, if applicable.

4.14.10 Adjust the TI CENTER FREQUENCY control to position the display near center screen, and activate

the TI SAVE A function.

4.14.11 Observe the complete sweep and choose the 20 ms portion (one division) of the sweep that has the

greatest amount of peak–to–peak vertical deflection present. Record the peak–to–peak amplitude (in divisions) in this 20 ms of sweep. (See Figure 11).

100

–20 dBm

2.00 mV/

10 DB

100 MHZ

20 ms/

10 KHZ0–1.8

REF

–10

–20

–30

–40

–50

–60

–70

L O G

Figure 11. Residual FM Measurement Display

4.14.12 Multiply the amount (in divisions) of the peak–to–peak signal amplitude recorded in step 4.14.11, by

the slope calculated in step 4.14.8. Verify that the product does not exceed 7 kHz.

Example:

Peak–to–peak signal noted was 1.1 divisions (example). Slope calculated in step 4.14.8 was 2 kHz/div.

Therefore,

1.1Ă divĂ xĂ 2Ă kHzdivĂ Ă2.2ĂkHz

4.14.13 Press the TI SHIFT, then FREE RUN pushbuttons to re–enable the phase lock, and deactivate the TI

SAVE A and ZERO SPAN functions. Set the TI CENTER FREQUENCY to 100 MHz, if necessary.

4.14.14 Set the TI TIME/DIV switch to AUTO, and set the RESOLUTION BANDWIDTH control for a 100 Hz

TI CRT read–out.

4.14.15 Progressively set the TI FREQUENCY SPAN/DIV switch down to 100 Hz, while keeping the

100 MHz signal centered on the TI CRT with the CENTER FREQUENCY control.

NAVAIR 17–20AW–232

4.14.16 Position the 100 MHz signal, using the TI CENTER FREQUENCY control, so that the left hand

sloping edge of the signal is positioned to cross the TI CRT center vertical graticule at the –20 REF horizontal graticule.

4.14.17 Continue down the left hand slope of the 100 MHz signal and note where the slope crosses the TI CRT

–60 REF horizontal graticule line. Measure and record the number of vertical divisions (horizontal deflection) from the TI CRT center vertical graticule to the point where the signal slope crosses the TI CRT –60 REF horizontal graticule line.

4.14.18 Calculate the slope of the signal using the following formula. Record this calculated slope.

SlopeĂ Ă

4.14.19 Depress the TI ZERO SPAN pushbutton and set the TIME/DIV switch to 20 ms.

4.14.20 Adjust the TI CENTER FREQUENCY control to position the display near center screen, and activate

the TI SAVE A function.

4.14.21 Observe the complete sweep and choose the 20 ms portion (one division) of the sweep that has the

greatest amount of peak–to–peak vertical deflection present. Record the peak–to–peak amplitude (in divisions) in this 20 ms of sweep.

4.14.22 Multiply the amount (in divisions) of the peak–to–peak signal amplitude recorded in step 4.14.21, by

the slope calculated in step 4.14.18. Verify that the product does not exceed 12 Hz.

4.15 RESOLUTION BANDWIDTH TESTS

4.15.1 Set the TI controls as follows:

CENTER FREQUENCY control to 100 MHz FREQUENCY SPAN/DIV control to 500 kHz RESOLUTION BANDWIDTH to 1 MHz

divĂ measuredĂ inĂ stepĂ 4.14.17Ă xĂ 100Ă Hzdiv

4Ă divisions

REF LEVEL to –20 dBm MIN RF ATTEN switch to 0 dB VER TICAL DISPLAY to 2 dB/div TIME/DIV switch to AUTO NARROW VIDEO FILTER to ON (activated) MIN NOISE function to ON (activated)

4.15.2 Measure and note the 6 dB down bandwidth (see Figure 12A). Verify that the measured 6 dB bandwidth

is between 0.8 and 1.2 MHz.

NAVAIR 17–20AW–232

REF LEVEL –20 DBM

100

–6 dB down

1.0 MHz Bandwidth

L I N

2 DB/ VERTICAL DISPLAY

0 DB

RF ATTENUATION

FREQUENCY

100.00 MHz

FREQ. SPAN/DIV 500 KHZ/

REF

100

REF LEVEL –20 DBM

FREQUENCY

100.00 MHz

–10

–6 dB

1.0 MHz

–20

Bandwidth

–30

–40

–50

–60

3.4 MHz

0–1.8 FREQ RANGE

INT REFERENCE OSCILLATOR

–70

L O G

DB 1 MHZ RESOLUTION

BANDWIDTH

10 DB/ VERTICAL DISPLAY

0 DB

RF ATTENUATION

Figure 12. Resolution Bandwidth and Shape Factor Measurement Displays

FREQ. SPAN/DIV 500 KHZ/

Shape Factor

3.4 MHz

1.0 MHz

INT

REFERENCE OSCILLATOR

= 3.4

1 MHZ RESOLUTION BANDWIDTH

REF

–10

–20

–30

–40

–50

–60

–70

L O G

4.15.3 Set the TI VER TICAL DISPLAY to 10 dB/div.

4.15.4 Measure and note the 60 dB down bandwidth (see Figure 12B).

4.15.5 Calculate the shape factor (60 dB/6 dB) using the 6 and 60 dB down bandwidths noted in steps 4.15.2

and 4.15.4 as follows:

ShapeĂ factorĂ Ă

(60Ă dBĂ BW)

(6Ă dBĂ BW)

Example:

6 dB down BW = 1.0 MHz, 60 dB down bandwidth = 3.4 MHz

Then

ShapeĂ factorĂ Ă

3.4Ă MHz

1.0Ă MHz

Ă Ă3.4

4.15.6 Verify that the shape factor calculated in step 4.15.5 is 7.5:1 or less.

4.15.7 If the TI is a 494AP Model, proceed with step 4.15.7.1; otherwise, skip to step 4.15.8.

4.15.7.1 Set the TI RESOLUTION BANDWIDTH to 3 MHz, and the FREQUENCY SPAN/DIV control to 1

MHz.

4.15.7.2 Repeat steps 4.15.2 through 4.15.6, except verify that the measured 6 dB down bandwidth is between

2.4 and 3.6 MHz.

NAVAIR 17–20AW–232

4.15.8 Repeat steps 4.15.2 through 4.15.6 for TI RESOLUTION BANDWIDTH settings of 100 kHz down to 100 Hz in decade steps, verify that the measured 6 dB down bandwidth is within +20% of the TI RESOLUTION BANDWIDTH setting.

Decrease the TI FREQUENCY SPAN/DIV setting to facilitate the 6 dB and 60 dB bandwidth measurements in step 4.15.7.

4.15.9 Set the TI RESOLUTION BANDWIDTH to 30 Hz (10 Hz, for TI 494A Models), and set the FREQ SPAN/DIV for a convenient display of the TI calibrator signal.

4.15.10 Repeat steps 4.15.2 through 4.15.6, except verify that the measured 6 dB down bandwidth is between 12 to 48 Hz (not applicable for TI 494A Models) and the calculated shape factor is 15:1 or less (12:1 or less for TI 494A Models).

For TI 494 Models, because of residual FM [(10 + 2N) Hz in 20 ms], the bandwidth of the 30 Hz filter cannot be measured to a + included with the specification.

NOTE

20% tolerance in step 4.15.10; an additional 12 Hz error must be

4.15.11 Disconnect the TI CAL OUTPUT from the RF INPUT connector.

4.16 IEEE BUS TESTS (494P AND 494AP MODELS ONLY)

4.16.1 Connect the TI rear panel IEEE–488 connector to the instrument controller using the appropriate cable.

4.16.2 Insert the diskette into the instrument controller, press the controller restart button and sequence as per the controller CRT instruction.

NOTES The 1722A/AP and 1720A/AP Controller CRT is touch sensitive. Program accordingly. There are some minor differences between the programming steps required for using version 2 or

version 3 of the IEEE Bus tester program (NAVAIR 17–20MSYS–036D). The following procedure steps contain instructions written towards using version 2 or version 3. Use the appropriate series of steps starting at 4.16.3 and 4.16.4 corresponding to the version available of the IEEE Bus tester program.

4.16.3 IEEE Bus T ester Instructions, Version 2

4.16.3.1 On the controller, when the model number display appears, enter the TI Model Number.

4.16.3.2 On the controller, when the Instrument Type display appears, enter Talker and Listener.

4.16.3.3 Skip to step 4.16.5.

NAVAIR 17–20AW–232

4.16.4 IEEE Bus T ester Instructions, Version 3

4.16.4.1 On the controller, when the model number display appears, select the TI model number, if it is

provided, and then select the End Selections function.

4.16.4.2 Following the controller CRT instructions, sequence through the bus address search function, and enter

the TI Model Number.

4.16.5 On the controller, when the command display appears, enter FREQ 30.00 MHz (30.0 MHz).

4.16.6 On the controller, when Type of Command appears, enter Listen.

4.16.7 Verify that the TI is programmed for a center frequency of 30.0 MHz, and that the controller CRT

display of Command indicates the program command entered in step 4.16.5.

4.16.8 On the controller, go to the command display, and enter MINATT?.

4.16.9 On the controller, when Type of Command appears, enter Talk.

4.16.10 Verify that the value indicated by the next controller CRT display of Data Received corresponds to the

TI MIN RF ATTEN control setting (check TI front panel).

4.16.11 Press the controller abort switch, retrieve the diskette, and disconnect the equipment from the TI.

4.16.12 Unless other measurements are to be performed, turn all power switched to off or standby, and

disconnect the equipment from the TI.

4.16.13 If the TI was only calibrated to 18 GHz, affix a Special Calibration label on the TI stating “TI tested

only to 18 GHz”

( 44 blank) 43

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TEST INST (S)

T ektronix 494, 494P, 494POPT08, 494POPT30, and Interstate Electronics 7185400 Spectrum Analyzers

NAVAIR 17–20AW–232

(6)

SER. NO.

CALIBRATION TOLERANCES

(7)

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

3.4 Initial TI Turn–on

3.4.2 Memory – I/O tests – – ck ( ) NA No failure messages

3.5 Internal Calibration

3.5.3 Internal Cal routine – – ck ( ) NA No failure messages

4.1 Calibrator Tests (MHz) (MHz)

4.1.2 CAL OUT – 100 MHz 100 99.999990 to 100.000010 (dBm) (dBm)

4.1.15 ” ––20 dBm –20 –19.7 to –20.3

4.2 Counter Readout Tests (MHz) (Hz)

4.2.5 Counter – 100 MHz 100 99,999,987 to 100,000,013

4.2.6 ” – 100 ” 100 ” (MHz) (kHz)

4.2.8 ” – 100 ” 100 99,999 to 100,001

4.2.9 ” – 100 ” 100 ”

(GHz) (Hz)

4.2.11 ” – 500 ” 500 499,999,987 to 500,000,013

” ” – 1000 ” 1000 999,999,987 to 1,000,000,013

4.2.14 ” – 1.7 GHz 1.7 1,699,999,817 to 1,700,000,183

” ” – 3.0 ” 3.0 2,999,999,687 to 3,000,000,313 ” ” – 5.0 ” 5.0 4,999,999,487 to 5,000,000,513 ” ” – 8.0 ” 8.0 7,999,999,183 to 8,000,000,817 ” ” – 12.0 ” 12.0 11,999,998,783 to12,000,001,217 ” ” – 15.0 ” 15.0 14,999,998,483 to15,000,001,517 ” ” – 18.0 ” 18.0 17,999,998,183 to18,000,001,817 ”* ” – 21.0 ” 21.0 20,999,997,883 to 21,000,002,117

*If applicable.

Page 1 of 9

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T ektronix 494, 494P, 494POPT08, 494POPT30, and Interstate Electronics 7185400 Spectrum Analyzers

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

4.3 Center Frequency Tests

4.3.4 C.F. – 500 MHz – – ck ( ) +

0.23 div from center

4.3.5 ” – 1.0 GHz – – ck ( ) ” ” ” ” – 1.5 ” – – ck ( ) ” ” ” ” – 3.5 ” – – ck ( ) ” ” ” ” – 5.0 ” – – ck ( ) ” ” ” ” – 10.0 ” – – ck ( ) +

0.29 ” ” ” – 15.0 ” – – ck ( ) ” ” ” ” – 18.0 ” – – ck ( ) ” ” ”* ” – 21.0 ” – – ck ( ) ” ”

4.3.7 C.F. – 0.5 ” – – ck ( ) + ” ” – 1.0 ” – – ck ( ) + ” ” – 1.5 ” – – ck ( ) +

0.20 ”

0.21 ”

(7)

” ” – 3.5 ” – – ck ( ) + ” ” – 5.0 ” – – ck ( ) + ” ” – 10.0 ” – – ck ( ) + ” ” – 15.0 ” – – ck ( ) + ” ” – 18.0 ” – – ck ( ) + ”* ” – 21.0 ” – – ck ( ) +

0.24 ”

0.25 ”

0.30 ”

0.35 ”

0.38 ”

0.41 ”

4.4 CRT Display Tests

4.4.5 Attenuation: 10 dB – – ck ( ) Sig. decreases 9 to 11 dB ” ” 20 ” – – ck ( ) ” ” ” 30 ” – – ck ( ) ” ” ” 40 ” – – ck ( ) ”

” ” 50 ” – – ck ( ) ” ” ” 60 ” – – ck ( ) ” ” ” 70 ” – – ck ( ) ” ” ” 80 ” – – ck ( ) ”

4.4.6 80 dB cum. error – – ck ( ) Max. cum. error <

+2.0 dB

*If applicable.

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NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.4.9 Attenuation: 2 dB – – ck ( ) Sig. dec. 1.6 to 2.4 dB ” ” 4 ” – – ck ( ) ” ” ” 6 ” – – ck ( ) ” ” ” 8 ” – – ck ( ) ” ” ” 10 ” – – ck ( ) ” ” ” 12 ” – – ck ( ) ” ” ” 14 ” – – ck ( ) ” ” ” 16 ” – – ck ( ) ”

4.4.10 16 dB cum. error – – ck ( ) Max. cum. error <

4.4.13 Lin: 1/2Voltage – – ck ( ) w/in +

0.4 div 1/2 screen

4.4.14 ” 1/4 ” – – ck ( ) ” 1/4 ”

4.4.15 ” 1/8 ” – – ck ( ) ” 1/8 ”

+1.0 dB

4.5 Frequency Span Tests

4.5.1 Frequency Span T ests Using a Comb Generator Span/Div Combs (div) (div)

4.5.1.5 200 MHz 2 – 18 8.0 difference 7.6 to 8.4

4.5.1.6 100 ” 2 – 10 ” ”

” 50 ” 1 – 5” ” ” 20 ” 3 – 19 ” ” ” 10 ” 2 – 10 ” ” ” 5 ” 1 – 5” ” ” 2 ” 3 – 19 ” ” ” 1 ” 2 – 10 ” ” ” 500 kHz 1 – 5” ”

4.5.1.10 200 ” 2 – 10 ” ”

4.5.1.11 100 ” 1 – 5” ”

” 50 ” 2 – 10 ” ” ” 20 ” 2 – 10 ” ” ” 10 ” 1 – 5” ” ” 5 ” 2 – 10 ” ” ” 2 ” 2 – 10 ” ”

Page 3 of 9

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PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

4.5.2 Frequency Span T ests Using a Signal Generator or Signal Source

4.5.2.6 200 MHz Span/Div – – ck ( ) w/in +

0.4 div of 10th grat

4.5.2.7 100 ” ” – – ck ( ) ” ” 50 ” ” – – ck ( ) ” ” 20 ” ” – – ck ( ) ” ” 10 ” ” – – ck ( ) ” ” 5 ” ” – – ck ( ) ” ” 2 ” ” – – ck ( ) ” ” 1 ” ” – – ck ( ) ” ” 500 kHz ” – – ck ( ) ” ” 200 ” ” – – ck ( ) ” ” 100 ” ” – – ck ( ) ” ” 50 ” ” – – ck ( ) ”

(7)

” 20 ” ” – – ck ( ) ” ” 10 ” ” – – ck ( ) ” ” 5 ” ” – – ck ( ) ” ” 2 ” ” – – ck ( ) ”

4.6 RF Attenuator Tests (dB) (dB)

4.6.12 10 dB ATTEN – 1 GHz –10 –9.7 to –10.3

4.6.14 20 ” ” ” –20 –19.4 to –20.6

4.6.15 30 ” ” ” –30 –29.3 to –30.7 ” 40 ” ” ” –40 –39.3 to –40.7 ” 50 ” ” ” –50 –49.3 to –50.7 ” 60 ” ” ” –60 –59.3 to –60.7

4.6.16 Diff. 10 dB steps ” 10 9.7 to 10.3

4.6.21 10 dB ATTEN – 10 GHz –10 –9.5 to –10.5 ” 20 ” ” ” –20 –19.0 to –21.0 ” 30 ” ” ” –30 –28.6 to –31.4 ” 40 ” ” ” –40 –38.6 to –41.4 ” 50 ” ” ” –50 –48.6 to –51.4 ” 60 ” ” ” –60 –58.6 to –61.4

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NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

(dB) (dB)

4.6.22 Diff. 10 dB steps 10 9.5 to 10.5

4.6.26 10 dB ATTEN – 15 GHz –10 –9.5 to –10.5

” 20 ” ” ” –20 –19.0 to –21.0 ” 30 ” ” ” –30 –28.6 to –31.4 ” 40 ” ” ” –40 –38.6 to –41.4 ” 50 ” ” ” –50 –48.6 to –51.4 ” 60 ” ” ” –60 –58.6 to –61.4 ” Diff. 10 dB steps ” 10 9.5 to 10.5

4.7 IF Gain Tests

4.7.7 Min noise – ON – – ck ( ) <+

0.8 (<+0.4 div)

4.7.10 REF LEVEL: –11 dBm – – ck ( ) –0.8 to –1.2 dB

” ” ” –12 ” – – ck ( ) –1.6 to –2.4 ” ” ” ” –13 ” – – ck ( ) –2.5 to –3.5 ” ” ” ” –14 ” – – ck ( ) –3.5 to –4.5 ” ” ” ” –15 ” – – ck ( ) –4.5 to –5.5 ” ” ” ” –16 ” – – ck ( ) –5.5 to –6.5 ” ” ” ” –17 ” – – ck ( ) –6.5 to –7.5 ” ” ” ” –18 ” – – ck ( ) –7.5 to –8.5 ” ” ” ” –19 ” – – ck ( ) –8.5 to –9.5 ” ” ” ” –20 ” – – ck ( ) –9.0 to 11.0 ”

4.7.11 Diff bet. 1 dB steps – – ck ( ) 0.8 to 1.2 ”

4.7.12 Diff –19 to –20 dBm step – – ck ( ) 0.5 to 1.5 ”

4.7.15 REF LEVEL: –30 dBm – – ck ( ) –9.0 to –11.0 ”

” ” ” –40 ” – – ck ( ) –18.0 to –22.0 ” ” ” ” –50 ” – – ck ( ) –28.0 to –32.0 ” ” ” ” –60 ” – – ck ( ) –38.0 to –42.0 ” ” ” ” –70 ” – – ck ( ) –48.0 to –52.0 ” ” ” ” –80 ” – – ck ( ) –58.0 to –62.0 ”

4.7.16 REF LEVEL: –30 ” – – ck ( ) 9.0 to 11.0 ”

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(6)

SER. NO.

CALIBRATION TOLERANCES

(7)

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

4.8 Frequency Response Tests

4.8.6 50 kHz to 500 kHz – – ck ( ) response within + ” 10 ” to 500 ” – – ck ( ) ” +

4.8.11 500 kHz to 10 MHz – – ck ( ) ” +

4.8.18 10 MHz to 1.8 GHz – – ck ( ) ” ” ”

4.8.20 1.7 ” to 3.7 ” – – ck ( ) ” + ” 3.5 ” to 5.5 ” – – ck ( ) ” ” ” ” 3.0 ” to 5.0 ” – – ck ( ) ” ” ” ” 5.0 ” to 7.0 ” – – ck ( ) ” ” ” ” 5.4 ” to 10.4 ” – – ck ( ) ” + ” 10.4 ” to 15.4 ” – – ck ( ) ” ” ” ” 13.0 ” to 18.0 ” – – ck ( ) ” ” ” ” 15.0 ” to 18.0 ” – – ck ( ) ” +

1.5 dB

2.0 ”

1.5 ”

2.5 ”

3.5 ”

5.0 ”

”* 18.0 ” to 21.0 ” – – ck ( ) ” ” ”

4.9 Equivalent Input Noise Sensitivity Tests

4.9.1 Equivalent Input Noise Sensitivity T est For TI 494 and 494P Models (GHz) (BW) (dBm max)

4.9.1.2 0 to 1.8 – 1 MHz – – ck ( ) noise level –80

4.9.1.4 ” – 100 kHz – – ck ( ) ” ” –90

4.9.1.5 ” – 10 ” – – ck ( ) ” ” –100

4.9.1.7 ” – 1 ” – – ck ( ) ” ” –110

4.9.1.9 ” – 100 Hz – – ck ( ) ” ” –118

4.9.1.11 ” – 30 ” – – ck ( ) ” ” –121

4.9.1.12 1.7 to 5.5 – 1 MHz – – ck ( ) ” ” –80

” ” – 100 kHz – – ck ( ) ” ” –90 ” ” – 10 ” – – ck ( ) ” ” –100 ” ” – 1 ” – – ck ( ) ” ” –110 ” ” – 100 Hz – – ck ( ) ” ” –118 ” ” – 30 ” – – ck ( ) ” ” –121

*If applicable.

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NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

(GHz) (BW) (dBm max)

4.9.1.12 3.0 to 7.1 – 1 MHz – – ck ( ) noise level –80 ” ” – 100 kHz – – ck ( ) ” ” –90 ” ” – 10 ” – – ck ( ) ” ” –100 ” ” – 1 ” – – ck ( ) ” ” –110 ” ” – 100 Hz – – ck ( ) ” ” –118 ” ” – 30 ” – – ck ( ) ” ” –121 ” 5.4 to 18.0 – 1 MHz – – ck ( ) ” ” –65 ” ” – 100 kHz – – ck ( ) ” ” –75 ” ” – 10 ” – – ck ( ) ” ” –85 ” ” – 1 ” – – ck ( ) ” ” –95 ” ” – 100 Hz – – ck ( ) ” ” –103 ” ” – 30 ” – – ck ( ) ” ” –106 ” 5.4 to 18.0 – 1 MHz – – ck ( ) ” ” –60 ” ” – 100 kHz – – ck ( ) ” ” –70 ” ” – 10 ” – – ck ( ) ” ” –80 ” ” – 1 ” – – ck ( ) ” ” –90 ” ” – 100 Hz – – ck ( ) ” ” –98 ” ” – 30 ” – – ck ( ) ” ” –101 ” 15.0 to 21.0 – 1 MHz – – ck ( ) ” ” –55 ” ” – 100 kHz – – ck ( ) ” ” –65 ” ” – 10 ” – – ck ( ) ” ” –75 ” ” – 1 ” – – ck ( ) ” ” –85 ” ” – 100 Hz – – ck ( ) ” ” –93 ” ” – 30 ” – – ck ( ) ” ” –96

4.10 Intermodulation Distortion T ests

4.10.7 3rd order products – – ck ( ) 3rd order prod >70 dB down

4.11 Harmonic Distortion T est

4.11.6 Harmonics – – ck ( ) Harmonics >60 dB down

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PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.12 Noise Sidebands T est

4.12.5 +

30 kHz sidebands – – ck ( ) noise sidebands

>75 dB down

4.13 Residual Response T ests (dBm)

4.13.2 100 MHz – – ck ( ) residual responses <–100 ” 200 ” – – ck ( ) ” ” 300 ” – – ck ( ) ” ” 400 ” – – ck ( ) ” ” 500 ” – – ck ( ) ” ” 600 ” – – ck ( ) ” ” 700 ” – – ck ( ) ” ” 800 ” – – ck ( ) ” ” 900 ” – – ck ( ) ” ” 1000 ” – – ck ( ) ” ” 1100 ” – – ck ( ) ” ” 1200 ” – – ck ( ) ”

” 1300 ” – – ck ( ) ” ” 1400 ” – – ck ( ) ” ” 1500 ” – – ck ( ) ” ” 1600 ” – – ck ( ) ” ” 1700 ” – – ck ( ) ” ” 1800 ” – – ck ( ) ”

4.14 Residual FM T ests

4.14.7 Horizontal deflections – – NA record horizontal deflection

4.14.8 Slope = (value from 4.14.7)

times (10 kHz/div)/4 div – – ck ( ) NA calculate slope of signal

4.14.11 Max vertical deflection – – NA record max vert deflection

4.14.12 Residual FM – (value from

4.14.11) times (slope) – – ck ( ) residual FM <

4.14.17 Horizontal deflections – – NA record horizontal deflection Page 8 of 9

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NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.14.18 Slope = (value from 4.14.17) times (100 Hz/div)/4 div –– ck ( ) NA calculate slope of signal

4.14.21 Max vertical deflection –– NA record max vert deflection

4.14.22 Residual FM–(value from

4.14.21) times (slope) –– ck ( ) residual FM <

12 Hz

4.15 Resolution Bandwidth Tests

4.15.2 1 MHz – Res. BW 1 MHz 0.8 to 1.2 MHz

4.15.6 ” ” – Shape Factor –– ck ( ) 7.5:1 or less

4.15.8 100 kHz – Res. BW 100 kHz 80 to 120 kHz

” ” ” – Shape Factor –– ck ( ) 7.5:1 or less ” 10 ” – Res. BW 10 kHz 8 to 12 kHz ” ” ” – Shape Factor –– ck ( ) 7.5:1 or less ” 1 ” – Res. BW 1 kHz 0.8 to 1.2 kHz ” ” ” – Shape Factor –– ck ( ) 7.5:1 or less ” 100 Hz – Res. BW 100 Hz 80 to 120 Hz ” ” ” – Shape Factor –– ck ( ) 7.5:1 or less

4.15.10 30 ” – Res. BW 30 Hz 12 to 48 Hz

” ” ” – Shape Factor –– ck ( ) 15:1 or less

4.16 IEEE Bus Tests (494P and 494AP Models Only)

4.16.7 C.F. set to 30 MHz –– ck ( ) Correct response

4.16.10 TI sends MIN RF ATTEN –– ck ( ) ” ”

Page 9 of 9

( 54 blank) 53

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

NAVAIR 17–20AW–232

(6)

SER. NO.

CALIBRATION TOLERANCES

(7)

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

3.4 Initial TI Turn–on

3.4.2 Memory – I/O tests – – ck ( ) NA No failure messages

3.5 Internal Calibration

3.5.3 Internal Cal routine – – ck ( ) NA No failure messages

4.1 Calibrator Tests (MHz) (MHz)

4.1.2 CAL OUT – 100 MHz 100 99.999990 to 100.000010 (dBm) (dBm)

4.1.15 ” ––20 dBm –20 –19.7 to –20.3

4.2 Counter Readout Tests (MHz) (Hz)

4.2.5 Counter – 100 MHz 100 99,999,993 to 100,000,007

4.2.6 ” – 100 ” 100 ” (MHz) (kHz)

4.2.8 ” – 100 ” 100 99,999 to 100,001

4.2.9 ” – 100 ” 100 ” (MHz) (Hz)

4.2.11 ” – 500 ” 500 499,999,993 to 500,000,007

” ” – 1000 ” 1000 999,999,993 to 1,000,000,007

(GHz) (Hz)

4.2.14 ” – 1.7 GHz 1.7 1,699,999,823 to 1,700,000,177

” ” – 3.0 ” 3.0 2,999,999,693 to 3,000,000,307 ” ” – 5.0 ” 5.0 4,999,999,493 to 5,000,000,507 ” ” – 8.0 ” 8.0 7,999,999,191 to 8,000,000,809 ” ” – 12.0 ” 12.0 11,999,998,791 to 12,000,001,209 ” ” – 15.0 ” 15.0 14,999,998,491 to 15,000,001,509 ” ” – 18.0 ” 18.0 17,999,998,191 to 18,000,001,809 ”* ” – 21.0 ” 21.0 20,999,997,891 to 21,000,002,109

*If applicable.

Page 1 of 10

NAVAIR 17–20AW–232

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

4.3 Center Frequency Tests

4.3.4 C.F. – 500 MHz – – ck ( ) +

0.23 div from center

0.29 ” ” ” – 15.0 ” – – ck ( ) ” ” ” ” – 18.0 ” – – ck ( ) ” ” ”* ” – 21.0 ” – – ck ( ) ” ”

4.3.7 C.F. – 0.5 ” – – ck ( ) + ” ” – 1.0 ” – – ck ( ) + ” ” – 1.5 ” – – ck ( ) +

0.20 ”

0.21 ”

(7)

0.24 ”

0.25 ”

0.30 ”

0.35 ”

0.38 ”

0.41 ”

4.4 CRT Display Tests

4.4.5 Attenuation: 10 dB – – ck ( ) Sig. decreases 9 to 11 dB ” ” 20 ” – – ck ( ) ” ” ” 30 ” – – ck ( ) ” ” ” 40 ” – – ck ( ) ” ” ” 50 ” – – ck ( ) ” ” ” 60 ” – – ck ( ) ” ” ” 70 ” – – ck ( ) ” ” ” 80 ” – – ck ( ) ”

4.4.6 80 dB cum. error – – ck ( ) Max. cum. error <

+2.0 dB

*If applicable.

Page 2 of 10

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.4.10 16 dB cum. error – – ck ( ) Max. cum. error <

4.4.13 Lin: 1/2Voltage – – ck ( ) w/in +

0.4 div 1/2 screen

4.4.14 ” 1/4 ” – – ck ( ) ” 1/4 ”

4.4.15 ” 1/8 ” – – ck ( ) ” 1/8 ”

+1.0 dB

4.5 Frequency Span Tests

4.5.1 Frequency Span T ests Using a Comb Generator Span/Div Combs (div) (div)

4.5.1.5 200 MHz 2 – 18 8.0 difference 7.6 to 8.4

4.5.1.6 100 ” 2 – 10 ” ”

” 50 ” 1 – 5” ” ” 20 ” 3 – 19 ” ” ” 10 ” 2 – 10 ” ” ” 5 ” 1 – 5” ” ” 2 ” 3 – 19 ” ” ” 1 ” 2 – 10 ” ” ” 500 kHz 1 – 5” ”

4.5.1.10 200 ” 2 – 10 ” ”

4.5.1.11 100 ” 1 – 5” ”

” 50 ” 2 – 10 ” ” ” 20 ” 2 – 10 ” ” ” 10 ” 1 – 5” ” ” 5 ” 2 – 10 ” ” ” 2 ” 2 – 10 ” ”

Page 3 of 10

NAVAIR 17–20AW–232

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

4.5.2 Frequency Span T ests Using a Signal Generator or Signal Source

4.5.2.6 200 MHz Span/Div – – ck ( ) w/in +

0.4 div of 10th grat

(7)

” 20 ” ” – – ck ( ) ” ” 10 ” ” – – ck ( ) ” ” 5 ” ” – – ck ( ) ” ” 2 ” ” – – ck ( ) ”

4.6 RF Attenuator Tests (dB) (dB)

4.6.12 10 dB ATTEN – 1 GHz –10 –9.5 to –10.5

4.6.14 20 ” ” ” –20 –19.0 to –21.0

4.6.15 30 ” ” ” –30 –29.0 to –31.0 ” 40 ” ” ” –40 –39.0 to –41.0 ” 50 ” ” ” –50 –49.0 to –51.0 ” 60 ” ” ” –60 –59.0 to –61.0

4.6.16 Diff. 10 dB steps ” 10 9.5 to 10.5

4.6.21 10 dB ATTEN – 10 GHz –10 –8.5 to –11.5 ” 20 ” ” ” –20 –17.0 to –23.0 ” 30 ” ” ” –30 –27.0 to –33.0 ” 40 ” ” ” –40 –37.0 to –43.0 ” 50 ” ” ” –50 –47.0 to –53.0 ” 60 ” ” ” –60 –57.0 to –63.0

Page 4 of 10

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

(dB) (dB)

4.6.22 Diff. 10 dB steps 10 8.5 to 11.5

4.6.26 10 dB ATTEN – 15 GHz –10 –8.5 to –11.5

” 20 ” ” ” –20 –17.0 to –23.0 ” 30 ” ” ” –30 –27.0 to –33.0 ” 40 ” ” ” –40 –37.0 to –43.0 ” 50 ” ” ” –50 –47.0 to –53.0 ” 60 ” ” ” –60 –57.0 to –63.0 ” Diff. 10 dB steps ” 10 9.5 to 10.5

4.7 IF Gain Tests

4.7.7 Min noise – ON – – ck ( ) Signal change <+

0.8 dB

4.7.10 REF LEVEL: –11 dBm – – ck ( ) –0.8 to –1.2 dB

4.7.11 Diff bet. 1 dB steps – – ck ( ) 0.8 to 1.2 ”

4.7.12 Diff –19 to –20 dBm step – – ck ( ) 0.5 to 1.5 ”

4.7.15 REF LEVEL: –30 dBm – – ck ( ) –9.0 to –11.0 ”

4.7.16 REF LEVEL: –30 ” – – ck ( ) 9.0 to 11.0 ”

Page 5 of 10

NAVAIR 17–20AW–232

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

(6)

SER. NO.

CALIBRATION TOLERANCES

(7)

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

4.8 Frequency Response Tests

4.8.6 50 kHz to 500 kHz – – ck ( ) response within + ” 10 ” to 500 ” – – ck ( ) ” ” ”

4.8.11 500 kHz to 10 MHz – – ck ( ) ” +

4.8.18 10 MHz to 1.8 GHz – – ck ( ) ” ” ”

1.5 dB

1.5 ”

2.5 ”

3.5 ”

5.0 ”

”* 18.0 ” to 21.0 ” – – ck ( ) ” ” ”

4.9 Equivalent Input Noise Sensitivity Tests

4.9.1 Equivalent Input Noise Sensitivity T est For TI 494A Models (GHz) (BW) (dBm max)

4.9.2.2 0 to 1.8 – 3 MHz – – ck ( ) noise level –80

4.9.2.3 ” – 1 ” – – ck ( ) ” ” –85

4.9.2.4 ” – 100 kHz – – ck ( ) ” ” –95

4.9.2.5 ” – 10 ” – – ck ( ) ” ” –105

4.9.2.7 ” – 1 ” – – ck ( ) ” ” –115

4.9.2.9 ” – 100 Hz – – ck ( ) ” ” –125

4.9.2.11 ” – 10 ” – – ck ( ) ” ” –134

” 1.7 to 5.5 – 3 MHz – – ck ( ) ” ” –74 ” ” – 1 ” – – ck ( ) ” ” –79 ” ” – 100 kHz – – ck ( ) ” ” –89 ” ” – 10 ” – – ck ( ) ” ” –99 ” ” – 1 ” – – ck ( ) ” ” –109 ” ” – 100 Hz – – ck ( ) ” ” –119 ” ” – 10 ” – – ck ( ) ” ” –125

*If applicable.

Page 6 of 10

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

(GHz) (BW) (dBm max)

4.9.2.11 3.0 to 7.1 – 3 MHz – – ck ( ) noise level –74 ” ” – 1 ” – – ck ( ) ” ” –79 ” ” – 100 kHz – – ck ( ) ” ” –89 ” ” – 10 ” – – ck ( ) ” ” –99 ” ” – 1 ” – – ck ( ) ” ” –109 ” ” – 100 Hz – – ck ( ) ” ” –119 ” ” – 10 ” – – ck ( ) ” ” –125 ” 5.4 to 18.0 – 3 MHz – – ck ( ) ” ” –60 ” ” – 1 ” – – ck ( ) ” ” –65 ” ” – 100 kHz – – ck ( ) ” ” –75 ” ” – 10 ” – – ck ( ) ” ” –85 ” ” – 1 ” – – ck ( ) ” ” –95 ” ” – 100 Hz – – ck ( ) ” ” –105 ” ” – 10 ” – – ck ( ) ” ” –111 ” 5.4 to 18.0 – 3 MHz – – ck ( ) ” ” –55 ” ” – 1 ” – – ck ( ) ” ” –60 ” ” – 100 kHz – – ck ( ) ” ” –70 ” ” – 10 ” – – ck ( ) ” ” –80 ” ” – 1 ” – – ck ( ) ” ” –90 ” ” – 100 Hz – – ck ( ) ” ” –100 ” ” – 10 ” – – ck ( ) ” ” –107 ” 15.0 to 21.0 – 3 MHz – – ck ( ) ” ” –55 ” ” – 1 ” – – ck ( ) ” ” –60 ” ” – 100 kHz – – ck ( ) ” ” –70 ” ” – 10 ” – – ck ( ) ” ” –80 ” ” – 1 ” – – ck ( ) ” ” –90 ” ” – 100 Hz – – ck ( ) ” ” –100 ” ” – 10 ” – – ck ( ) ” ” –107

Page 7 of 10

NAVAIR 17–20AW–232

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.10 Intermodulation Distortion T ests

4.10.7 3rd order products – – ck ( ) 3rd order prod >70 dB down

4.11 Harmonic Distortion T est

4.11.6 Harmonics – – ck ( ) Harmonics >60 dB down

4.12 Noise Sidebands T est

4.12.5 +

30 kHz sidebands – – ck ( ) noise sidebands

>75 dB down

4.13 Residual Response T ests (dBm)

” 1300 ” – – ck ( ) ” ” 1400 ” – – ck ( ) ” ” 1500 ” – – ck ( ) ” ” 1600 ” – – ck ( ) ” ” 1700 ” – – ck ( ) ” ” 1800 ” – – ck ( ) ”

Page 8 of 10

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

NAVAIR 17–20AW–232

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

(7)

4.14 Residual FM T ests

4.14.7 Horizontal deflections – – NA record horizontal deflection

4.14.8 Slope = (value from 4.14.7) times (10 kHz/div)/4 div – – ck ( ) NA calculate slope of signal

4.14.11 Max vertical deflection – – NA record max vert deflection

4.14.12 Residual FM – (value from

4.14.11) times (slope) – – ck ( ) residual FM <

7 kHz

4.14.17 Horizontal deflections – – NA record horizontal deflection

4.14.18 Slope = (value from 4.14.17) times (100 Hz/div)/4 div –– ck ( ) NA calculate slope of signal

4.14.21 Max vertical deflection –– NA record max vert deflection

4.14.22 Residual FM–(value from

4.14.21) times (slope) –– ck ( ) residual FM <

12 Hz

4.15 Resolution Bandwidth Tests

4.15.2 1 MHz – Res. BW 1 MHz 0.8 to 1.2 MHz

4.15.6 ” ” – Shape Factor –– ck ( ) 7.5:1 or less

4.15.7.2 3 MHz – Res. BW 3 MHz 2.4 to 3.6 MHz

” ” ” – Shape Factor –– ck ( ) 7.5:1 or less

4.15.8 100 kHz – Res. BW 100 kHz 80 to 120 kHz

4.15.10 10 ” – Res. BW 10 Hz NA

” ” ” – Shape Factor –– ck ( ) 12:1 or less

Page 9 of 10

NAVAIR 17–20AW–232

CALIBRATION CHECKLIST

TEST INST (S)

T ektronix 494AP Spectrum Analyzer

PROC. NO.

PROCEDURE

STEP

NO.

(1)

NA 17–20AW–232

FUNCTION TESTED

(2)

MFG. MODEL

MEASURED VALUES

NOMINAL

(3)

FIRST RUN

(4)

OUT

SECOND RUN

TOL

(5)

SER. NO.

CALIBRATION TOLERANCES

(6)

4.16 IEEE Bus Tests (494P and 494AP Models Only)

4.16.7 C.F. set to 30 MHz –– ck ( ) Correct response

4.16.10 TI sends MIN RF ATTEN –– ck ( ) ” ”

(7)

Page 10 of 10

Tektronix 494AP Calibration Procedure

Specifications and Main Features

Frequently Asked Questions

User Manual