Wavetek 3001 schematic

INCLUDES CHANGES 1 AND 2

TB 9-6625-2094-35

CHANGE 2

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

SIGNAL GENERATOR SG-1170/U

(WAVETEK, MODEL 3001)

Headquarters, Department of the Army, Washington, DC

22 October 2003

Approved for public release; distribution is unlimited.

TB 9-6625-2094-35, 6 August 2003 is changed as follows:

1. Remove old pages and insert new pages as indicated below. New or changed material is
indicated by a vertical bar in the margin of the page.

Remove pages Insert pages

3 and 4 3 and 4
5 and 6 5 and 6

13 and 14 13 and 14

2. File this change sheet in front of the publication for reference purposes.

By Order of the Secretary of the Army:

Official:

Distribution:
To be distributed in accordance with IDN 342229, requirements for calibration
procedure TB 9-6625-2094-35

JOEL B. HUDSON

Administrative Assistant to the

Secretary of the Army

0323903

PETER J. SCHOOMAKER

General, United States Army

Chief of Staff

TB 9-6625-2094-35

CHANGE 1

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

SIGNAL GENERATOR SG-1170/U

(WAVETEK, MODEL 3001)

Headquarters, Department of the Army, Washington, DC

3 September 2003

Approved for public release; distribution is unlimited.

TB 9-6625-2094-35,6 August 2003 is changed as follows:

1. Remove old pages and insert new pages as indicated below. New or changed material is
indicated by a vertical bar in the margin of the page.

Remove pages Insert pages

15 and 16 15 and 16

2. File this change sheet in front of the publication for reference purposes.

By Order of the Secretary of the Army:

Official

JOEL B. HUDSON

Administrative Assistant to the

Secretary of the Army

Distribution:

To be distributed in accordance with (IDN) 342229, requirements for calibration procedure TB 9-

6625-2094-35.

PETER J. SCHOOMAKER

General, United States Army

Chief of Staff

*TB 9-6625-2094-35

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

SIGNAL GENERATOR SG-1170/U

(WAVETEK, MODEL 3001)

Headquarters, Department of the Army, Washington, DC

6 August 2003

Approved for public release; distribution is unlimited

REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS

You can improve this manual. If you find any mistakes or if you know of a way to improve these
procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to
Publications and Blank Forms) directly to: Commander, U.S. Army Aviation and Missile Command,
ATTN: AMSAM-MMC-MA-NP, Redstone Arsenal, AL 35898-5000. A reply will be furnished to you.
You may also provide DA Form 2028 information to AMCOM via e-mail, fax, or the World Wide
Web. Our fax number is DSN 788-6546 or Commercial 256-842-6546. Our e-mail address is:

[e-mail]. Instructions for sending an electronic 2028 may be found at the back of

this manual. For the World Wide Web, use https://amcom2028.redstone.army.mil/.

SECTION I. IDENTIFICATION AND DESCRIPTION

Test instrument identification ........................... 1 2

Forms, records, and reports ................................ 2 2

Calibration description ....................................... 3 2

II. EQUIPMENT REQUIREMENTS

Equipment required ............................................ 4 3

Accessories required ............................................ 5 3

III. CALIBRATION PROCESS

Preliminary instructions ..................................... 6 4

Equipment Setup ................................................ 7 5

Frequency accuracy.............................................. 8 5

Frequency stability .............................................. 9 9

Output meter accuracy ........................................ 10 9

Output level flatness............................................ 11 11

Attenuator accuracy............................................. 12 12

Amplitude modulation ......................................... 13 13

AM distortion........................................................ 14 15

Frequency modulation ......................................... 15 15

FM distortion........................................................ 16 16

Power supply ........................................................ 17 17

Final procedure .................................................... 18 17

Paragraph Page

____________
*This technical bulletin supersedes TB 9-6625-2094-35, 24 August 1998, including all changes.

TB 9-6625-2094-35

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification. This bulletin provides instructions for the

calibration of Signal Generator SG-1170/U (Wavetek, Model 3001). The manufacturer's
manual was used as the prime data source in compiling these instructions. The equipment
being calibrated will be referred to as the TI (test instrument) throughout this bulletin.

a. Model Variations

(1) Wavetek, Model 3001 (unmodified) frequency range is from 1 MHz to 520 MHz.

(2) The SG-1170/U (modified) instruments have a frequency range from 1 kHz to
520 MHz.

(3) SG-1170/U (unmodified) instruments have a frequency range from 450 kHz to
520 MHz.

(4) Frequency ranges for a particular instrument are shown on the front panel,
located above the FREQUENCY indicator switches.

b. Time and Technique. The time required for this calibration is approximately 4
hours, using the dc and low frequency and microwave techniques.

2. Forms, Records, and Reports.

a. Forms, records, and reports required for calibration personnel at all levels are
prescribed by TB 750-25.

b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).

3. Calibration Description. TI parameters and performance specifications, which
pertain to this calibration, are listed in table 1.

Table 1. Calibration Description

Test Instrument Parameters Performance Specifications

Frequency Range: 0.001 to 520 MHz

Accuracy: ± 0.1%, 1 to 100 kHz
± 0.001%, 0.1 to 520 MHz
(± 0.001% ± 10 kHz FREQUENCY VENIER in
UNCAL position)
Stability: <0.38 ppm/hr in CAL position
± 500 Hz/10 min in UNCAL position

See footnote at end of table.

1

2

Table 1. Calibration Description (Continued)

Test Instrument Parameters Performance Specifications

RF output Range: -137 to +13 dBm

Accuracy: ± 1.25 dB, -7 to 13 dBm
± 1.95 dB, -7 to -77 dBm
± 2.75 dB, -77 to -137 dBm

Flatness Range: -7 to 13 dBm

Accuracy: ± 0.75 dB ref 50 MHz

Meter Range: 10 dBm

Accuracy: ± 0.5 dB at 50 MHz

Attenuators Range: -130 to +10 dBm

Accuracy: ± 0.5 dB to 70 dBm (± 0.2 dB cal error)
± l dB to 130 dBm (± 0.5 dB cal error)

Amplitude modulation Range: 0 to 90%

Accuracy: ± (5% +5% of Full Scale) at 1 kHz

Internal frequency Range: 400 Hz and 1 kHz

Accuracy: ± 5%

Distortion Accuracy: <3% to 70%

<5% to 90%

Frequency modulation:

Frequency

Deviation

Distortion

1

Specification change authorized.

Range: 400 Hz and 1 kHz
Accuracy: ± 5%

Range: 0 to 10 kHz and 0 to 100 kHz
Accuracy: ± 500 Hz on X1 range
± 5 kHz on X10 range

Accuracy: <2%, 10 kHz to 100 kHz deviation at 1 kHz
<4%, 3 kHz to 10 kHz deviation at 1 kHz

TB 9-6625-2094-35

SECTION II

EQUIPMENT REQUIREMENTS

4. Equipment Required. Table 2 identifies the specific equipment to be used in this

calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, AN/GSM-287, or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
exceed the minimum use specifications listed in table 2. The accuracies listed in table 2
provide a four-to-one ratio between the standard and TI. Where the four-to-one ratio
cannot be met, the actual accuracy of the equipment is shown in parenthesis.

5. Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.

CHANGE 2 3

TB 9-6625-2094-35

Table 2. Minimum Specifications of Equipment Required

Common name

AUDIO ANALYZER Frequency measurement:

FREQUENCY COUNTER Range: 1 kHz to 520 MHz

MEASURING RECEIVER
Frequency

RF Power

Flatness

Amplitude
modulation

Frequency
modulation

MULTIMETER Range: 20 V dc

SIGNAL GENERATOR Used in measuring receiver (SG-1207/U)
SIGNAL GENERATOR Used in measuring receiver (SG-1219/U)

Minimum use specifications

Range: 380 to 1050 Hz
Accuracy: ±1.25%
Distortion capability: <0.5% at 1 kHz

Accuracy: ±0.00025%

Range: 500 kHz to 520 MHz
Accuracy: <1 x E-9/day
Stability: ±0.05 ppm/hr

Range: 520 MHz (0 dBm to -110 dBm)
Accuracy: ±0.1875 dBm

Range: 10 MHz to 500 MHz
Accuracy: ±0.125 dBm

Range: 10% to 90% mod at 520 MHz
Accuracy: ±2.65%

Range:
mod
Accuracy: <1.25% from 10 kHz to
100 kHz frequency
deviation

Accuracy: ±0.05%

50 MHz at 400 Hz and 1 kHz

Manufacturer and model

Boonton, Model 1120-S/10 (MIS­35954/2)

Hewlett-Packard, AN/USM459B
(AN/USM459B)

Hewlett-Packard, Model 8902A
(8902A)

John Fluke, Model 8840A/AF­05/09 (AN/GSM-64D)

(part number)

SECTION III

CALIBRATION PROCESS

6. Preliminary Instructions

a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.

b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.

c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in TM 11-6625-3029-14 for this TI.

4 CHANGE 2

TB 9-6625-2094-35

d. When indications specified in paragraphs 8 through 16 are not within tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 16. Do not perform power supply check if all other
parameters are within tolerance.

e. Unless otherwise specified, all controls and control settings refer to the TI.

7. Equipment Setup

WARNING

HIGH VOLTAGE is used or exposed during the performance of
this calibration. DEATH ON CONTACT may result if
personnel fail to observe safety precautions. REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.

a. Remove protective cover from TI only when necessary to make adjustments. Replace
cover upon completion of adjustments.

b. Connect TI to a 115 V ac source.

c. If OUTPUT meter needle does not bisect the dot at the left end of the scale, adjust
zero adjust, located below meter face, until meter needle bisects dot.

d. Set POWER switch to ON and allow at least 2 hours for TI to warm up and
stabilize.

8. Frequency Accuracy

a. Performance Check

NOTE

Perform only the frequency checks pertaining to the model
being calibrated. See paragraph 1a(1) through (4) for
identification of models.

(1) Connect TI RF OUTPUT to frequency counter CHANNEL A. Set counter to
50Ω input and gate time to 10 seconds.

(2) Position TI controls as listed in (a) through (d) below:

(a) FREQUENCY VERNIER control to CAL.
(b) MODULATION MODE switch to CW.
(c) OUTPUT step attenuator control for 0 dBm.
(d) OUTPUT VERNIER control fully cw.
(e) FREQUENCY switches to indicate 000.001 MHz.

CHANGE 2 5