Dc Remote Keying; Programmable No-Tone Period; Firmware Timers; Ctcss - RF Technology Eclipse Series Operation And Maintenance Manual

7 SPECIFICATIONS

7.4.21 DC Remote Keying

An opto-coupler input is provided to enable dc loop keying over balanced lines or local
connections. The circuit can be connected to operate through the 600Ω line or through a
separate isolated pair.
7.4.22 Pr ogr ammable No-Tone Per iod
A No-Tone period can be appended to the end of each transmission to aid in eliminating
squelch tail noise which may be heard in mobiles with slow turn off decoders. The No-Tone
period can be set from 0--5 seconds in 0.1 second increments. The No Tone period operates
in addition to the reverse phase burst at the end of each transmission.
7.4.23 Fir mwar e Timer s
The controller firmware includes some programmable timer functions.
Repeater Hang Time - A short delay or ``Hang Time'' can be programmed to be added to the
end of transmissions. This is usually used in talk through repeater applications to prevent the
repeater from dropping out between mobile transmissions.
individually set on each channel for 0 - 15 seconds.
Time Out Timer - A time-out or transmission time limit can be programmed to automatically
turn the transmitter off. The time limit can be set from 0-254 minutes in increments of one
minute. The timer is automatically reset when the PTT input is released.

7.4.24 CTCSS

CTCSS tones can be provided by an internal encoder or by an external source connected to
the external tone input. The internal CTCSS encoding is provided by a subassembly PCB
module. This provides programmable encoding of all EIA tones.
Some models encode certain extra tones.
Tone frequencies are given in table 4.
7.5 Connector s
7.5.1

Antenna Connector

Type N Female Mounted on the module rear panel
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3
The reverse phase burst is usually sufficient to eliminate squelch tail noise in higher-quality mobiles
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RF Technology T800
7.4.21 DC Remote Keying
3
The Hang Time can be
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