davidmajors Posted September 28, 2022 Report Share Posted September 28, 2022 Hi, I am trying to setup my Baofeng GM-15 Pro. I came across TX CTCSS and RX CTCSS. The repeater has input tone: 156.7 and and output tone: 192.8 My question is TX CTCSS should be which number.??? and RX CTCSS ??? my repeater has the following info: Open System Type 462.725 MHz Frequency Input Tone 156.7 Hz Output Tone 192.8 Hz Online Status Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted September 28, 2022 Report Share Posted September 28, 2022 Your transmit tone must match the input tone of the repeater. Your receive tone can either be left empty (to receive everything) or may have the output tone of the repeater. I would strongly recommend leaving it empty until you get transmit working anyway. Over2U 1 Quote Link to comment Share on other sites More sharing options...
davidmajors Posted September 28, 2022 Author Report Share Posted September 28, 2022 Thanks for you reply. I am trying to understand TX CTCSS means input or output in reference to the repeater info I posted. That’s what I am trying to find out. Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted September 28, 2022 Report Share Posted September 28, 2022 52 minutes ago, davidmajors said: Thanks for you reply. I am trying to understand TX CTCSS means input or output in reference to the repeater info I posted. That’s what I am trying to find out. It’s relative. TX CTCSS is the tone transmitted (or output) by whichever radio is transmitting. One radio’s transmit (output) tone is another radio’s receive (input) tone. You must transmit with the correct tone because the repeater filters out all transmissions it receives that don’t have the correct tone But you don’t have to filter out transmissions on your receiver You can leave the RX tone empty and receive all transmissions PhilVB 1 Quote Link to comment Share on other sites More sharing options...
davidmajors Posted September 28, 2022 Author Report Share Posted September 28, 2022 So in my case TX CTCSS is 192.8 based in the repeater information below Open System Type 462.725 MHz Frequency Input Tone 156.7 Hz Output Tone 192.8 Hz Online Status Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted September 28, 2022 Report Share Posted September 28, 2022 Just now, davidmajors said: So in my case TX CTCSS is 192.8 based in the repeater information below Open System Type 462.725 MHz Frequency Input Tone 156.7 Hz Output Tone 192.8 Hz Online Status No, your transmit tone must match the input tone for the repeater. You must transmit using 156.7 Hz as the TX CTCSS. Quote Link to comment Share on other sites More sharing options...
davidmajors Posted September 28, 2022 Author Report Share Posted September 28, 2022 So TX CTCSS means the input and RX CTCSS is Output Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted September 28, 2022 Report Share Posted September 28, 2022 11 minutes ago, davidmajors said: So TX CTCSS means the input and RX CTCSS is Output Not exactly. TX CTCSS is the output of your radio and the input to the repeater. Your output goes to the repeater input. They must match. Quote Link to comment Share on other sites More sharing options...
davidmajors Posted September 28, 2022 Author Report Share Posted September 28, 2022 There is a TX CTCSS and RX CTCSS setting in my GM-15 Pro. please tell me which number goes where in my Radio settings. Input Tone 156.7 Hz Output Tone 192.8 Hz Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted September 28, 2022 Report Share Posted September 28, 2022 7 minutes ago, davidmajors said: There is a TX CTCSS and RX CTCSS setting in my GM-15 Pro. please tell me which number goes where in my Radio settings. Input Tone 156.7 Hz Output Tone 192.8 Hz Use 156.7 Hz as the TX CTCSS. Leave RX CTCSS empty for now. Quote Link to comment Share on other sites More sharing options...
WRKC935 Posted October 1, 2022 Report Share Posted October 1, 2022 OK, things to know about tones. They are REVERSE of what you might think. The INPUT tone of a repeater is the OUTPUT tone of the subscriber radio. Meaning your mobile, portable or anything other than the repeater. So the OUTPUT TONE of the repeater will be programmed as the INPUT TONE of the portable or mobile. When guys split the tones like this, it becomes a bit of a pain to figure out which is which. SteveShannon 1 Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted October 1, 2022 Report Share Posted October 1, 2022 5 hours ago, WRKC935 said: OK, things to know about tones. They are REVERSE of what you might think. The INPUT tone of a repeater is the OUTPUT tone of the subscriber radio. Meaning your mobile, portable or anything other than the repeater. So the OUTPUT TONE of the repeater will be programmed as the INPUT TONE of the portable or mobile. When guys split the tones like this, it becomes a bit of a pain to figure out which is which. Thanks for trying to help him out. Hopefully I didn’t drive him away frustrated. Quote Link to comment Share on other sites More sharing options...
WSEZ Posted Wednesday at 12:37 PM Report Share Posted Wednesday at 12:37 PM I know this is an old thread and my question may seem silly or dorky but I'm not understanding why some repeaters only have a tx tone and no rx tone. Shouldn't it have both no matter what? Quote Link to comment Share on other sites More sharing options...
Socalgmrs Posted Wednesday at 02:07 PM Report Share Posted Wednesday at 02:07 PM In my opinion yes they should have both but some owners have them set up so when you’re listening to the repeater you’re going to hear EVERYTHING in the channel,frequency. I don’t even bother with those repeaters as there is no way of knowing if some one is on simplex or the repeater and in my area Atleast there is loads of simplex traffic on 15-22. Errrgg. WRXB215 and WSEZ 1 1 Quote Link to comment Share on other sites More sharing options...
WRYZ926 Posted Wednesday at 02:21 PM Report Share Posted Wednesday at 02:21 PM There is no way I would run a GMRS repeater without using both RX and TX tones. Just like I always run both RX and TX tones on my radios too. As mentioned, you will get all of the simplex traffic if you don't. WSEZ 1 Quote Link to comment Share on other sites More sharing options...
WSEZ Posted Wednesday at 02:23 PM Report Share Posted Wednesday at 02:23 PM I think understand now, you need a tx-ctcss to activate the repeaters but the rx-ctcss limits the receiving to just that repeater and no one else. WRUU653 1 Quote Link to comment Share on other sites More sharing options...
WRYZ926 Posted Wednesday at 02:28 PM Report Share Posted Wednesday at 02:28 PM Yes that is how it works. The catch is if someone on the same simplex channel as the repeater output is using the same tone then you will hear them too. I had to laugh when we first put our GMRS repeater online when some of the guys were complaining about hearing a bunch of kids. The first thing I asked them is if they were using the RX tone on their radios. And of course they were not. WSEZ 1 Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted Wednesday at 02:31 PM Report Share Posted Wednesday at 02:31 PM 8 minutes ago, WRYZ926 said: There is no way I would run a GMRS repeater without using both RX and TX tones. Just like I always run both RX and TX tones on my radios too. As mentioned, you will get all of the simplex traffic if you don't. I live in a very low traffic (GMRS traffic) area. I might leave the RX tone out so I could avoid doubling with someone on simplex. WSEZ and WRUU653 2 Quote Link to comment Share on other sites More sharing options...
WRYZ926 Posted Wednesday at 02:41 PM Report Share Posted Wednesday at 02:41 PM There is quite a bit of simplex traffic in my rural area. GMRS is popular with the farmers. And simplex traffic really increases during the firearms deer season which starts this weekend. And some of the conversations from the hunters is not suitable for women and children. I won't even scan the different channels for the next few weeks for that reason. SteveShannon, WRUU653 and WSEZ 3 Quote Link to comment Share on other sites More sharing options...
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