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BARRETT 4050 HF SDR TRANSCEIVER - OPERATING AND INSTALLATION MANUAL
Hop
This option requires an Export Permit.
The Transceiver employs a unique frequency
hopping system that uses an external ESU
(Encryption Synchronisation Unit).
Note: The external ESU must be connected
and providing valid data for the frequency
hopping system to operate.
Selecting the Hop Band
Select a channel which is used for normal / clear transmission based on normal
procedures used when using an HF system. This channel frequency and mode is
used by the Transceiver to determine the hop band.
Note: The reference frequency is NOT a centre frequency for the hop band. It simply
determines which of the preset hop bands are selected.
Entering the Security Code
For hopping PIN code entry, refer to SDR Options and Option PINs on page
113. The security PIN code is based on the information below.
Security Codes and Bandwidths
Security codes 00000000 to 19999999 are used for hopping ± 2 kHz
Security codes 20000000 to 49999999 are used for hopping ± 16 kHz
Security codes 50000000 to 99999999 are used for hopping ± 128 kHz
Hopping up to ± 2 kHz is useful for narrow band antennas such as when using
antenna tuners in manpack operation.
Hopping up to ± 128 kHz can be used with wideband antennas such as base
station broadband antennas.
Once entered, the security code for security reasons can never be retrieved or
viewed.
Содержание 4050 HF SDR
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