R&S M3SR Series 4100 HF Transceivers Test of Specification
6124.9007.82.01 3.6
2 MMI R&S GB 4000C
2.1 Switch transceiver off and on to ensure that
the R&S GB 4000C is connected and
working correctly.
Transceiver off and on
3 Receiver - Sensitivity in J3E Mode
3.1 Set transceiver to Modulation +J3E (upper
sideband), BW = 2.7 kHz.
Connect the signal generator to HF input X30
(ANTENNA).
3.2 Set Digital Selector (if installed) to BYPASS,
Preamp off.
Apply HF level of -112.2 dBm to X30 with
following frequencies:
15.1 MHz
27.1 MHz
By using the audio analyzer, measure SINAD
(averaging over 10 values) of audio signal at
X26.11/.41 into 600
Ω
.
> 10 dB SINAD
3.3 Only if Digital Selector is installed:
Set Digital Selector to SELECTIVE, Preamp
off.
Apply following HF level to X30 with following
frequencies:
with R&S FK 4120: -107.7 dBm
with R&S FK 4140: -105.7 dBm
Frequencies:
15.1 MHz
27.1 MHz
Measure SINAD (averaging over 10 values)
of audio signal at X26.11/.41 into 600
Ω
.
> 10 dB SINAD
No. Activity Nominal Value
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