Use Manual

10
19) Remember to save all settings when tuning is finished.
NOTES:
*Sub audible tone deviation is automatically set to be within 600 to 900 Hz after this adjustment on wide band
channels. Maximum voice and tone deviation on wide band channels will then be 4800 to 5300 Hz. Narrow band tone
deviation will be 350 to 500 Hz with overall deviation of 2400 to 2650 Hz.
**The DTX-145M is capable of two squelch operating modes. Both can operate simultaneously. See the FM
Receiver Subsystem section for theory. The units can be configured as the user requires. When a low level signal
appears, the noise squelch opens when the carrier is –119 dBm or greater. When the signal appearing is –106 dBm or
greater the RSSI squelch opens the audio with an even faster attack time. The above levels are factory set levels.
Ambient noise will affect the level at which the RSSI should be set. The squelch level ideally should be set on the
desired frequency, in the actual location the radio will be used and connected to the desired antenna. The level should
be set high enough to reject most false signals. The squelch levels are the same for all channels.
If a very fast receiver decay time (or squelching after signal disappears) is needed the noise squelch should be
defeated by setting it to a high level.