Bird Technologies SA-4000 - Manual (Page 117)

Maintenance
107
Specifications
Frequency Characteristics
Frequency Range:
Model SA-2000
Model SA-2000A
Model SA-2500A 806 MHz to 2000 MHz
806 MHz to 2300 MHz
780 MHz to 2500 MHz
Frequency Resolution: 50 kHz
Frequency Accuracy: ± 150 kHz (75 ppm)
Number of Points: 238
Measurement Range and Resolution
Range Resolution
Return Loss: 0.0 to –60.0 dB 0.1 dB
VSWR: 1.00 to 99.99 0.01
Measurement Uncertainty (after 1 display refresh)
Return Loss: Determined graphically from composite of
42 dB directivity, 1.2 source VSWR, and
instrumentation error. Refer to the figure
on page 110.
VSWR: Calculated from Return Loss
Test Port
Connectors:
Impedance: N, Female normally supplied
50 Ohms
Directivity 42 dB, after calibration
Measurement Speed Better than 1 sweep per 4 seconds, test
port open, y-axis set to full scale
Immunity to Interfering
Signals
≥ 13 dB interferer at desired
measurement frequency.
Maximum Input Signal
(Damage Level)
≥ 22 dBm
Output Power < 0 dBm