Operating instructions

RF Technology T350/T500 Page 24
7.2.24 CTCSS 7 SPECIFICATIONS
in increments of one minute. The timer is automatically reset when the PTT input is
released.
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3
The reverse phase burst is usually sufficient to eliminate squelch tail noise in higher-quality mobiles
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 Connectors
7.5.1 Antenna Connector
Type N Female Mounted on the module rear panel
7.5.2 Power & I/O Connector
25-pin “D” Male Mounted on the rear panel
7.5.3 Test Connector
9-pin “D” Female mounted on the front panel