User`s guide

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Reverse Burst TOC Use the UP/DOWN arrow keys to enable/disable the Reverse Burst (PL),
or turn-off code (DPL), to be transmitted after the radio is de-keyed.
The Reverse Burst or turn-off code is used to signal the receiving radio
that the transmission is ending and to indicate that audio must be
muted. By muting before the carrier drops, the noise burst (squelch
tail) on the receiving end is substantially reduced.
Squelch (Fine Tune) Use the UP/DOWN arrow keys to adjust the Squelch Fine Tuning. This
value is combined with the master squelch setting to determine the
overall squelch for this personality. This feature can be used to tighten
the squelch on frequencies that are experiencing interference while
maintaining maximum sensitivity on all other frequencies. The valid
range of values is 0 (zero) to 31 in increments of 1.
Second LO Side Injection Use the UP/DOWN arrow keys to enable/disable Second LO (Local
Oscillator) Side Injection operation on this personality.
Note: Side Injection controls a very important aspect of the
frequencies associated with this personality, and SHOULD NOT be
enabled unless verified as necessary.
When this feature is enabled, it will override otherwise regular radio
signal algorithms for this personality and result in the reduction of
interference from very near units operating on different but fairly close
(within 900 kHz separation) channels.
Auto Scan Use the UP/DOWN arrow keys to enable the Auto Scan option for this
personality. When this feature is enabled, the radio will automatically
scan when on this personality. To use a scan on/off switch or button, this
option must be set to Disabled.
Rx Emphasis Use the UP/DOWN arrow keys to enable/disable receive de-emphasis
on this personality.
Tx Emphasis Use the UP/DOWN arrow keys to enable/disable Transmit Pre-
emphasis on this personality.
Pre-emphasis Amplifies the higher frequencies so that, when they are
transmitted, the signal-to-noise ratio is better.
De-emphasis Reverses the pre-emphasis after the signal has been
received.
Pre-emphasis Amplifies the higher frequencies so that, when they are
transmitted, the signal-to-noise ratio is better.
De-emphasis Reverses the pre-emphasis after the signal has been
received.