Atec JDSU-JD785A - Manual (Page 2)

2
JD785A CELLADVISOR BASE STATION ANALYZER
Display Range
Log scale and units
(10 divisions displayed) 1 to 20 dB/division in 1 dB steps
dBm, dBV, dBmV, dBµV
Linear scale and units
(10 divisions displayed)
V, mV, mW, W
Detectors Normal, positive peak, sample,
negative peak, RMS
Number of traces 6
Trace functions Clear/write, maximum hold,
minimum hold, capture, load
view on/off
Total Absolute Amplitude Accuracy
Preamplifier off, 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
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, preamplifier off, 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)
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
Span = 0 Hz (zero span)
Accuracy ±2% Span = 0 Hz (zero span)
Mode Continuous, single
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.
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
Reflection/DTF 1.0 ms/point (typical)
Measurement Accuracy
Corrected directivity 40 dB
Reflection uncertainty ±(0.3 + |20log (1+10 -EP/20 )|) (typical)
EP = directivity – measured return loss