GME making a move

kb1ejh

Member
Remember that CCTS is not a split tone type privacy tone. DCS is a split tone type privacy tone. I have a cheap set of FRS Midland Hand Held radios that can use both. My Midland. MXT275 and MCT575 were able to use both CCTS and DCS. When in CCTS it was a single tone regardless. When in DCS it was a split tone for TX and RX. It was something I had to take time to learn.

With GME it is the same rule. If you use CCTS the. You are not using split tone. If you are using DCS then you are using split tone.
Exactly, just like T and TSQ. One is encode only the other is encode/decode for CTCSS. The GME doesn't seem to be able to do the encode only as it was designed and sold to do.
 

DaveInDenver

Middle Income Semi-Redneck
CTCSS is continuous tone-coded squelch system and DCS is digital code squelch. They can be single transmit or receive or both on TX and RX. The difference is CTCSS is analog (and is the same thing as PL Tone, which is Privacy Line, a Motorola trademark) and DCS is digital codes instead of a sub-audible tone.

Split tone just means you have a different tone or signal on TX than RX. That's not unusual on repeaters because a listener can scan for the tone being used on the output that you hear and if you use the same tone on input they can maybe sneak in unauthorized. By using a different tone on input you can prevent this. To get into the repeater someone would have to try all possible CTCSS/PL/DCS. Tedious at least.

Having a tone on the output of a repeater is only for courtesy, you will always hear the output tone or not. If you use a tone to open your squelch on RX it's usually because you have interference so it's double step to prevent static. You only really need to be able to add a tone or DCS to your TX signal if the repeater is set to require it.
 

kb1ejh

Member
CTCSS is continuous tone-coded squelch system and DCS is digital code squelch. They can be single transmit or receive or both on TX and RX. The difference is CTCSS is analog (and is the same thing as PL Tone, which is Privacy Line, a Motorola trademark) and DCS is digital codes instead of a sub-audible tone.

Split tone just means you have a different tone or signal on TX than RX. That's not unusual on repeaters because a listener can scan for the tone being used on the output that you hear and if you use the same tone on input they can maybe sneak in unauthorized. By using a different tone on input you can prevent this. To get into the repeater someone would have to try all possible CTCSS/PL/DCS. Tedious at least.

Having a tone on the output of a repeater is only for courtesy, you will always hear the output tone or not. If you use a tone to open your squelch on RX it's usually because you have interference so it's double step to prevent static. You only really need to be able to add a tone or DCS to your TX signal if the repeater is set to require it.
Yep, pretty simple. Problem that I came across was I set the global to 156.7 TX only for the local repeaters. Went to the next county over and went to use one that is CSQ only (dumb actually but that's a different story) and tried it. Saw the speaker light up on the radio but no audio when the RX side was set to off. Turned off the TX tone and only then could the repeater be heard. The hard part is getting GME to understand it doesn't work correctly. They are probably great engineers, just not end users that understand how radio works.
 

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