ACCEPTANCE TESTING
7-8
INPUT FROM RADIO TEST SET to CONNECTION TO RADIO path loss
Specification
Path loss to radio
−
14 dB typical (865 MHz to 895 MHz),
−
15 dB typical (1930 MHz to 1990 MHz).
Measured figures supplied with instrument.
Accuracy
±0.25 dB plus ±0.1 dB frequency response.
Maximum safe power
(matched)
+19 dBm.
Reverse isolation
>40 dB.
Test equipment
Description Minimum
specification Example
Power meter
−
40 dBm to
−
20 dBm
IFR 6960B
Power sensor
−
40 dBm to
−
20 dBm
IFR 6920
Calibrated
attenuator pad
30 dB (for power meter cal’)
Calibrated
termination
50
Ω
N-type or
SMA-type cable
1.5 m long
N-type and
SMA-type
adapters
N-type female to N-type female (for N-type and
SMA-type cable)
N-type male to SMA-type male (for N-type cable)
N-type male to SMA-type female (for SMA-type
cable)
(1) Reset the instrument.
(2) Ensure the calibrated 50
Ω
termination is connected to OUTPUT TO RADIO TEST SET.
(3) Connect the cable between A RF OUTPUT and the power meter.
(4) On the UUT set source A to:
[Carr Freq]
865
[MHz]
[RF Level]
−
20 [dB]
(5) At the frequencies shown in
Table 7-16,
record the levels measured.
(6) Connect the power meter to CONNECTION TO RADIO.
(7) Connect the cable between A RF OUTPUT and INPUT FROM RADIO TEST SET on the
rear panel.
(8) At the frequencies shown in
Table 7-16
, record the levels measured.
(9) Take the figure in the top row from the figure in the next row, and record the result in the Path
loss box. Record the average of the path loss figures for each band in the next row.
(10) Ensure that the path loss figures are all within 0.1 dB of the average for both bands.
