RP6500 User’s Manual
Page 25 of 31
User resolution
Busy Channel Lockout (BCL)
Busy Channel Lockout can prevent you from interfering other radios that using the same channel.
Press the PTT button when the channel is busy, the radio with BCL function active will make warning sound and
prohibit transmitting. To stop the warning sound, please release the PTT button and the radio returns to receiving
mode.
The dealer may provide the following two lock mode:
Carrier wave: it will be locked if there is any Carrier wave;
Carrier wave+ CTCSS/DCS
：
transmitting is permitted if there are matched CTCSS/DCS in the channel.
Receiving squelch mode
The dealer may set the condition under which to turn on the speakers:
1. CTCSS/DCS and audio squelch: only when the CTCSS/DCS and optional signaling are patchable.
2. Audio squelch: once the optional signaling is matchable.
3. CTCSS/DCS squelch: when the CTCSS/DCS is matchable.
4. Carrier wave squelch: once there is any Carrier wave.
5. CTCSS/DCS and audio squelch: when the CTCSS/DCS is matchable, or when optional signaling are
matchable.
DTMF signaling
The dealer can set this function by programming.
There are 4 systems of which the parameters can be set, e.g.: group call ID No., * and # sound, etc.
After set a DTMF code in the “code sequence” , select DTMF system in the “DTMF code”, then select the
correspondent DTMF code cable in the “user’s resolution” and transfer it with PTT. Set a DTMF code in the
“decoding sequence”, add the sequence into the decoding cable in “DTMF decoding”, then select the
correspondent decoding cable. The dealer may also set the “decoding replay”.
2TONE signaling
The dealer can set this function by programming.
There are 4 systems of which the parameters can be set, e.g.: the duration of the first and the second tone, the
duration of the long tone and audio spacing, etc. Select the audio frequency
（
3106.0
～
288.0hz step size 0.1hz
）
in “encoding sequence”, and whether the tones sent are long or two tones, select 2TONE system in “2TONE
List”, then select the correspondent 2TONE code cable in the “user’s resolution” and transfer it with PTT. Select
the audio frequency
（
3106.0
～
288.0hz step size 0.1hz
）
in “decoding sequence”, and whether the tones received
are long or two tones, then select the correspondent decoding cable in the “user’s resolution”. The dealer may
also set the “decoding replay”.
5TONE signaling
The dealer can activate or inactivate this function by programming.
5-Tone has 9 encoding formats: CCIR1, CCIR2, ZVEI1, ZVEI2, SVEI3, EEA, EIA, USER DEFINED 1, and USER
DEFINED 2. The last tow formats are user defined.
1) 5-Tone Decoding
The decoding template is 5-tone decoding. If the decoding template matches the encoding template, decoding
