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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION
Tuning
When tuning, the transceiver will trans-
mit, at the power level selected, a carrier
on the channel selected, at 1.6 kHz above
the Suppressed Carrier Frequency (SCF)
(displayed frequency) of that channel.
The keypad will illuminate red whilst the
transceiver is tuning.
When the tune process is completed the
display will show “Tune Ok“, or “Tune
Failed” in the top left-hand corner.
The VSWR briey displays below the fre-
quency indicating the efciency of the
selected antenna.
Tune
Tuning occurs automatically when PTT occurs if the appropriate antenna tuner
type has been selected. Tuning can also be activated by pressing and holding
the tune icon on the handset.
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