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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION
Frequency Hopping
This option requires an Export Permit.
Frequency hopping can be used to limit performance degradation due to inter-
ference and to reduce the likelihood of interception. Frequency Hopping Spread
Spectrum (FHSS) is a method of transmitting radio signals by rapidly switching
a carrier among many frequency channels.
The transceiver employs a unique frequency hopping system that uses an exter-
nal GPS.
Note: An external GPS must be connected and providing valid data for the frequency
hopping system to operate.
Selecting the Hopping Band
Select a channel as per normal. This channel and mode is used by the trans-
ceiver to determine the hop band.
Entering the Hopping PIN
This code is entered under Settings < Security (see page page 101). All of the
transceivers that will be communicating on the same hopping band will need
to have the same Hopping code.
Enabling and Disabling Hopping
1. Attach a GPS receiver to the
rear of the transceiver.
2. Select a channel with a transmit
frequency (i.e. not disabled).
3. Enter the Hopping Pin
4. Press the Hopping icon on the
transceiver home screen to acti-
vate Hopping.
Hopping voice communication
can now be used.
Pressing the Hopping key for a sec-
ond time (or pressing the back but-
ton) disables Hopping mode.
Hop