Atec JD785A User Manual

COMMUNICATIONS TEST & MEASUREMENT SOLUTIONS

JD785A

CellAdvisor™ Base Station Analyzer

Spectrum Analyzer: 9 kHz to 8 GHz

Cable and Antenna Analyzer: 5 MHz to 6 GHz

Power Meter: 10 MHz to 8 GHz

Specication* Conditions

e JD785A specications apply under these conditions:

• e instrument has been turned on for at least 15 minutes

• e instrument is operating within a valid calibration period

• Data with no tolerance are considered typical values

• Cable and antenna measurements apply aer calibration to the OSL standard

• Typical and nominal values are dened as:

– Typical: expected performance of the instrument operating under 20° to 30°C

aer being at this temperature for 15 minutes

– Nominal: a general, descriptive term or parameter

Spectrum Analyzer (Standard)

Frequency

Frequency range 9 kHz to 8 GHz

Internal 10 MHz Frequency Reference

Accuracy ±0.05 ppm + aging (0 to 50°C)
Aging ±0.5 ppm/year

Frequency Span

Range 0 Hz (zero span)

10 Hz to 8 GHz

Resolution 1 Hz

Resolution Bandwidth (RBW)

–3 dB bandwidth 1 Hz to 3 MHz 1-3-10 sequence
Accuracy ±10% (nominal)

Video Bandwidth (VBW)

–3 dB bandwidth 1 Hz to 3 MHz 1-3-10 sequence
Accuracy ±10% (nominal)

Single Sideband (SSB) Phase Noise

Fc 1 GHz, RBW 10 kHz, VBW 1 kHz, RMS detector
Carrier oset:
30 kHz

100 kHz
1 MHz

Measurement Range

DANL to +25 dBm
Input attenuator range 0 to 55 dB, 5 dB steps

Maximum Input Level

Average continuous power +25 dBm
DC voltage ±50 VDC

Displayed Average Noise Level (DANL)

1 Hz RBW, 1 Hz VBW, 50 Ω termination, 0 dB attenuation, RMS detector
Preamplier o:

10 MHz to 3 GHz
>3 GHz to 5 GHz
>5 GHz to 7 GHz
>7 GHz to 8 GHz

Preamplier on:
10 MHz to 3 GHz
>3 GHz to 5 GHz
>5 GHz to 7 GHz
>7 GHz to 8 GHz

–100 dBc/Hz (–102 dBc/Hz, typical)
–105 dBc/Hz (–112 dBc/Hz, typical)
–115 dBc/Hz (–120 dBc/Hz, typical)

–140 dBm (–145 dBm, typical)
–138 dBm (–142 dBm, typical)
–135 dBm (–138 dBm, typical)
–132 dBm (–135 dBm, typical)

–160 dBm (–165 dBm, typical)
–158 dBm (–162 dBm, typical)
–155 dBm (–158 dBm, typical)
–152 dBm (–155 dBm, typical)

*All specifications are subject to change without notice.

WEBSITE: www.jdsu.com/test

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JD785A CELLADVISOR BASE STATION ANALYZER

Display Range

Log scale and units
(10 divisions displayed)

Linear scale and units
(10 divisions displayed)

Detectors Normal, positive peak, sample,

Number of traces 6
Trace functions Clear/write, maximum hold,

1 to 20 dB/division in 1 dB steps
dBm, dBV, dBmV, dBµV

V, mV, mW, W

negative peak, RMS

minimum hold, capture, load
view on/o

Total Absolute Amplitude Accuracy

Preamplier o, power level >–50 dBm, auto-coupled
1 MHz to 8 GHz ±1.3 dB (±0.5 dB typical)

Add ±1.0 dB

20°C to 30°C
–10°C to 55°C after
60-minute warm up

Reference Level

Setting range –120 to +100 dBm
Setting resolution

Log scale
Linear scale

0.1 dB
1% of reference level

Markers

Marker types Normal, delta, delta pair, noise,

frequency count marker

Number of markers 6

Marker functions Peak, next peak, peak left,

peak right, minimum search
marker to center/start/stop

Dynamic Range

2/3 (TOI-DANL) in 1 Hz RBW >104 dB @ 2 GHz

Sweep Time

Range 0.4 ms to 1000 s

24 µs to 200 s
Accuracy ±2% Span = 0 Hz (zero span)
Mode Continuous, single

Span = 0 Hz (zero span)

Gated Sweep

Trigger source External, video, and GPS
Gate length 1 µs to 100 ms
Gate delay 0 to 100 ms

Trigger

Trigger source Free run, video, external
Trigger delay

Range
Resolution

0 to 200 s
6 µs

Measurements*

Channel power
Occupied bandwidth
Spectrum emission mask
Adjacent channel power
Spurious emissions
Field strength
AM/FM audio demodulation
Route map

* CW signal generator (Option 003) can be set up simultaneously.

RF Input VSWR

1 MHz to 8 GHz 1.5:1 (typical) Atten >20 dB

Second Harmonic Distortion

Mixer level = –25 dBm
50 MHz to 2.6 GHz <–65 dBc (typical)
>2.6 GHz to 8 GHz <–70 dBc (typical)

Third-Order Inter-Modulation (Third-order Intercept: TOI)

200 MHz to 3 GHz +10 dBm (typical)
>3 GHz to 8 GHz +12 dBm (typical)

Spurious

Inherent residual response
Input terminated, 0 dB attenuation, preamplier o, RBW at 10 kHz
–90 dBm (nominal)

Exceptions –85 dBm @164.1 MHz, 1.95, 2.57264,

3.2, and 4.5 GHz
–80 dBm @4.8/7.8 GHz

Input-related spurious <–70 dBc (nominal)

Cable and Antenna Analyzer (Standard)

Frequency

Range 5 MHz to 6 GHz
Resolution 10 kHz
Accuracy ±1 ppm

Data Points

126, 251, 501, 1001, 2001

Measurement Speed

Reection/DTF 1.0 ms/point (typical)

Measurement Accuracy

Corrected directivity 40 dB
Reection uncertainty ±(0.3 + |20log (1+10

EP = directivity – measured return loss

-EP/20

)|) (typical)

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JD785A CELLADVISOR BASE STATION ANALYZER

Output Power

High 5 MHz to 5.5 GHz, 0 dBm (typical)

5.5 GHz to 6 GHz, –5 dBm (typical)

Low 5 MHz to 6 GHz, –30 dBm (typical)

Dynamic Range

Reection 60 dB

Maximum Input Level

Average continuous power +25 dBm (nominal)
DC voltage ±50 VDC
Interference immunity

On channel

On frequency

+17 dBm @ >1.4 MHz from carrier
frequency (nominal)
0 dBm within ±10 kHz from the car­rier frequency (nominal)

Measurements

Reection (VSWR)
VSWR range
Return loss range
Resolution

Distance to Fault (DTF)
Vertical VSWR range
Vertical return loss range
Vertical resolution
Horizontal range

Horizontal resolution

Cable Loss (1-port)
Range
Resolution

1-port Phase
Range
Resolution

Smith Chart
Resolution

1 to 65
0 to 60 dB

0.01

1 to 65
1 to 60 dB

0.01
0 to (# of data points – 1) x horizontal resolution
Maximum = 1500 m (4921 ft)

8

(1.5 x 10

VP = propagation velocity

Delta = stop freq – start freq (Hz)

) x (VP)/delta

0 to 30 dB

0.01 dB

–180° to +180°

0.01°

0.01

External RF Power Sensors

Directional Power Sensor JD731B

Frequency range 300 MHz to 3.8 GHz
Dynamic range 0.15 to 150 W (average)

4 to 400 W (peak)
Connector type Type-N female on both ends
Measurement type Forward/reverse average power,

forward peak power, VSWR
Accuracy ±(4% of reading + 0.05 W)

Directional Power Sensor

Frequency range

JD733A

150 MHz to 3.5 GHz

1,2

Dynamic range 0.1 to 50 W (average)

0.1 to 50 W (peak)
Connector type Type-N female on both ends
Measurement type Forward/reverse average power,

forward peak power, VSWR

Accuracy ±(4% of reading + 0.05 W)

1,2

Terminating Power Sensor JD732B

Frequency range 20 MHz to 3.8 GHz
Dynamic range –30 to +20 dBm
Connector type Type-N male
Measurement type Average
Accuracy ±7%

1

Terminating Power Sensor JD734B

Frequency range 20 MHz to 3.8 GHz

Dynamic range –30 to +20 dBm

Connector type Type-N male

Measurement type Peak

Accuracy ±7%

1

Terminating Power Sensor JD736B

Frequency range 20 MHz to 3.8 GHz

Dynamic range –30 to +20 dBm

Connector type Type-N male

Measurement type Average and Peak

Accuracy ±7%

1. CW condition at 25°C ±10°C.

2. Forward power.

1

RF Power Meter (Standard)

General Parameters

Display range –100 to +100 dBm
Oset range 0 to 60 dB
Resolution 0.01 dB or 0.1 x W (x = m, u, p)

Internal RF Power Sensor

Frequency range 10 MHz to 6 GHz
Span 1 kHz to 100 MHz
Dynamic range –120 to +25 dBm
Maximum power +25 dBm
Accuracy Same as spectrum analyzer

Optical Power Meter (Option 13)

Optical Power Meter

Display range –100 to +100 dBm
Oset range 0 to 60 dB
Resolution 0.01 dB or 0.1 mW

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JD785A CELLADVISOR BASE STATION ANALYZER

External Optical Power Sensors

Optical Power Sensor

Wavelength range
Max permitted input level +10 dBm
Connector input Universal 2.5 and 1.25 mm
Accuracy ±5%

Optical Power Sensor

Wavelength range
Max permitted input level +23 dBm
Connector input Universal 2.5 and 1.25 mm
Accuracy ±5%

MP-60

780 to 1650 nm

MP-80

780 to 1650 nm

2-Port Transmission Measurements (Option 001)

Frequency

Frequency range 5 MHz to 6 GHz
Frequency resolution 10 kHz

Output Power

High 5 MHz to 5.5 GHz, 0 dBm (typical)

5.5 GHz to 6 GHz, –5 dBm (typical)

Low 5 MHz to 6 GHz, –30 dBm (typical)

Measurement Speed

Vector 1.6 ms/point (typical)
Scalar 3.4 ms/point (typical)

Dynamic Range

Vector 5 MHz to 3 GHz, 80 dB

>3 GHz to 6 GHz, 75 dB

Scalar 5 MHz to 4.5 GHz, >110 dB

4.5 GHz to 6 GHz, >105 dB

Measurements

Insertion Loss/Gain
Range
Resolution

2-Port Phase
Range
Resolution

–120 to 100 dB

0.01 dB

–180° to +180°

0.01°

@average 5
@average 5

CW Signal Generator (Option 003)

Frequency

Frequency range 25 MHz to 6 GHz
Frequency reference <±1 ppm maximum
Frequency resolution 10 kHz

Output Power

Range 5 MHz to 5.5 GHz, –60 to 0 dBm

>5.5 to 6 GHz, –60 to –5 dBm
Step 1 dB
Accuracy ±1.5 dB (20 to 30 °C)

GPS Receiver and Antenna (Option 010)

GPS Indicator

Latitude, longitude, altitude

High-Frequency Accuracy

Spectrum, interference, and signal analyzer
GPS lock ±25 ppb
Hold over (for 3 days) ±50 ppb (0 to 50°C) 15 minutes after

satellite locked

Connector SMA, female

Interference Analyzer (Option 011)

Measurements

Spectrum analyzer Sound indicator, AM/FM audio demodulation,

interference ID, spectrum recorder
Spectrogram Collects up to 72 hours of data
RSSI Collects up to 72 hours of data
Interference nder
Spectrum replayer

Channel Scanner (Option 012)

Frequency Range

1 MHz to 8 GHz

Measurement Range

–110 to +25 dBm

Bias-Tee (Option 002)

Voltage

Voltage range +12 to +32 V
Voltage resolution 0.1 V

Power

8 W Max

Measurements

Channel scanner 1 to 20 channels
Frequency scanner 1 to 20 frequencies
Custom scanner 1 to 20 channels or frequencies

JD785A CELLADVISOR BASE STATION ANALYZER

5

GSM/GPRS/EDGE Signal Analyzer (Option 022)

General Parameters

Frequency range 450 MHz to 500 MHz

820 MHz to 965 MHz

1.705 GHz to 1.995 GHz
Input signal range –40 to +25 dBm
Burst power ±1.0 dB
Frequency error ±10 Hz + ref freq accuracy 99% condence level
GMSK modulation quality
Phase RMS accuracy

Residual error
Phase peak accuracy
8 PSK modulation quality

EVM accuracy
Residual error
RF power vs. time

±1.0 degrees

0.7 degrees (typical)

±2.0 degrees

±1.5%

2.5%

±0.25 symbol

(0 < Phase RMS < 8)

(0 < Phase peak < 30)

(2% < EVM < 8%)

Measurements

Option 022 Option 042

Channel power Constellation Auto measure Channel/frequency scanner

Channel power Burst power Channel power Channels or frequencies
Spectral density Modulation type Occupied bandwidth Absolute power
Peak to average power Frequency error Spectrum emission mask Group (trac, control)
Occupied bandwidth Phase error RMS Spurious emission mask BSIC (NCC, BCC)
Occupied bandwidth Phase error peak Burst power Multipath prole
Integrated power I/Q origin oset* PvsT – Mask (10 strongest)
Occupied power TSC Frame average power Frame average power
Spectrum emission mask BSIC Frequency error SNR, delay
Reference power C/I* Phase error RMS Modulation analyzer
Peak level at dened range EVM RMS* Phase error peak Frame avg power trend
Spurious emissions EVM Peak* EVM RMS* C/I trend
Peak frequency at dened range EVM 95
Peak level at dened range I/Q origin oset BSIC, frame no. and time
Power vs. time (Slot) C/I* C/I, frequency error
Burst power Burst power
Max/min point Modulation type

Power vs. time (Frame)

Frame average power
Burst power (Slot 0 to 7)
TSC (Slot 0 to 7)

th

* EVM Peak* Frame average power

Longitude, latitude, and satellite in all screens

* Measurements performed for 8PSK modulation signals (EDGE) o nl y.