Atec JDSU-JD746A - Manual (Page 2)

2
JD746A CELLADVISOR RF 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 (20 to 30°C)
5 MHz to 4 GHz
±1.25 dB, ±0.5 dB (typical)
±1.55 dB, ±1.0 dB (typical) Attenuation <40 dB
Attenuation ≥40 dB
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
20 MHz to 4 GHz 1.5:1 (typical)
Second Harmonic Distortion
Mixer level = –25 dBm
10 MHz to 1.3 GHz
<–65 dBc (typical)
>1.3 GHz to 4 GHz <–70 dBc (typical)
Third-order Inter-modulation (Third-order Intercept: TOI)
200 MHz to 2 GHz +10 dBm (typical)
>2 GHz to 4 GHz +12 dBm (typical)
Spurious
Inherent residual response
Input terminated, 0 dB attenuation, preamplifier off, RBW at 10 kHz
20 MHz to 3 GHz
–90 dBm (nominal)
>3 GHz to 4 GHz –85 dBm (nominal)
Exceptions <–80 dBm @ 311.94 MHz
<–84 dBm @ 415.92 MHz
<–85 dBm @ 519.90, 1599.00, and 2497.80 MHz
Input related spurious <–70 dBc (nominal)
Dynamic Range
2/3 (TOI-DANL) in 1 Hz RBW >95 dB
Sweep Time
Range 80 ms to 1000 s
24 µs to 200 s
Span = 0 Hz (zero span)
Sweep 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
PIM detect
Dual spectrum
* CW signal generator (Option 003) can be set up simultaneously.
Cable and Antenna Analyzer (Standard)
Frequency
Range 5 MHz to 4 GHz
Resolution 10 kHz
Accuracy ±25 ppm
Data Points
126, 251, 501, 1001
Measurement speed 1.65 ms/point (nominal)
Measurement Accuracy
Corrected directivity 40 dB (typical)
Reflection uncertainty ±(0.3 + |20log (1+10 -EP/20 )|) (typical)
EP = directivity – measured return loss
Output Power
High 0 dBm (typical)
Low –30 dBm (typical)