I believe the cap you speak of is to delay the transmitter on/keyed for an additional time, which the mfgr specs at 200mS (milli seconds). Removing or lowering the cap value would reduce the delayed ptt time.
The focus of my post is to ask people how their true reverse burst decoders respond to the time from the reverse burst phase inverter until the delayed ptt drops the transmitter. For some x-value of time the ctcss decoder receives the phase shifted ctcss, which remains on constant until the tx drops. I'm interested to know how the various decoders handle short reverse burst "inverted" tone. I'm heading toward the question of "is it better to reduce or remove (mute) the ctcss after the phase shift or just not worry about it?". As mentioned in one reply... there might be enough time for some fast decoders to "re-lock" on the inverted ctcss before the tx drops. 200 mS might not be much time but... is/does it possibly confuse some of the reverse burst ctcss decoders? thanks so far for your replies... keep them coming. cheers, skipp > I played around with using the RB-1 board on my repeater > transmitters using motorola and several other receivers in > tone squelch. Eventually I found it was better to remove > the capacitor which causes the RB-1 to send NO tone for > the last 100ms (or what ever the timing is). >
