• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

That doesn't make much sense.


The input frequency and the output frequency of a repeater are both different.


If you can hear someone breaking your squelch but not keying the repeater; then they are doing something wrong.  MOST repeaters will have a PL tone and squelch won't change until the repeater hears it.  Both the repeater AND your radio - and other radios MUST have the PL tone set to the same tone for that specific repeater.  Your transmit frequency is different from your receive frequency for repeaters.


The only real answer that makes sense is that their radio isn't programmed right.  If they are transmitting and you are hearing them - means they are tuning their radio to the output frequency instead of the input frequency for keying that repeater.  They may have the PL tone correct; but do not have the input/output frequency offset correct for that repeater.  One possible problem is that radio has either set the offset to "-" rather than "+" it requires.  Or, it doesn't have any offset, which means it is in simplex mode. 


Simplex operation is not allowed on that repeater portion of the band - BTW.


Example:


One particular repeater in my area can be listened to if the PL tone is 100hz and the receive is set to 147.150mhz with a "+" offset.  The frequency to transmit on that repeater must have a "+" offset and 600khz of offset AND  PL tone of 100hz so that the repeater can be triggered to transmit on 147.750mhz.  If someone has a radio set on 100hz PL tone and set to 147.150mhz with a "-" offset; the repeater cannot hear them.  So, it is transmitting 600mhz below 147.150!  Because it is off by 600khz in the wrong direction when transmitting.  They would be transmitting on 146.550 instead!  Either there is no offset; or it is set to the wrong "+" or "-" offset.


You can hear them because your radio is set to receive that frequency and has the same PL tone.

Hope that helps . . .