WRXM214

In the test today as outlined above they were 1 meter apart. It's going to take some coordination to run the test again but far enough apart to rule out interference from each other, as my helpers in this testing process are my kids... No programming via computer, as I don't have a cable to do so yet. I think I'm going to put this on a hiatus for a bit. But if I find the cause, I'll be sure to share. Thanks for the thoughts and tips everyone.

I'm afraid that's not the same model. The GM-15 PRO and GMRS-PRO are different units. From what I read online, the Baofang GM-15 Pro is just a rebranded Radioddity GM-30 (or vice versa)? And yes, I'm referring to voice/audio transmissions only. Simplex works between the transceivers on GMRS channel 21 (462.7000 MHz). Tests worked today at a range of 2.3 miles before signal degraded due to hills and losing line of sight. Based on the recommendations above, I tried removing the RX CTCSS tone. Here's the configuration for the radios: Radios A and B are both set to "RPT-7" in channel mode. Per the documentation, this preprogrammed channel transmits on 467.700 MHz and receives on 462.7000 MHz. The repeater in question is this one. Both radios have TX CTCSS tone set to 88.5 Hz and no RX CTCSS tone. Here is what I found when requesting a radio check: Radio A: hold key, "WRXM214 requesting a radio check. Over." Let up key. Both Radio A and Radio B receive a short static noise roughly 1 sec after I let up key on Radio A. Third party replies to radio check and confirms their location is 6 miles away, well out of simplex range. My signal is weak according to them, but I'm indoors and using a short antenna at the time. I hear the reply on both Radio A and Radio B. I then try transmitting another reply to the same third party from Radio B. Same behavior on Radio A, it does not play the audio transmission from Radio B but plays the reply from the third party 6 miles away. I change Radio A to CH-21 (TX and RX both on 462.7000 MHz, no TX CTCSS tone set). The third party does not hear it, nor does Radio B. I send another audio transmission from Radio B (still set to use the repeater and CTCSS tone). His reply is received by both of my radios.

I was most definitely trying to communicate via the repeater and not directly between the radios. I'm leaning on the "cursed radio" option more and more. The repeater in question is receiving on 467.700 and transmitting on 462.700. CTCSS is 88.5 Hz for both RX and TX. My radios have the "repeater" channels preprogrammed, so the only room for user error is entering the CTCSS tone. I haven't replied as I haven't had a chance to test them without the radio's RX-CTCSS set when they're out of simplex range of each other. But as soon as I can I'll report back. Just anecdotally, it made no difference with the radios ~20 meters apart, same behavior. Thank you all for the replies. Glad to know that my understanding of how these should work is not wrong.

I've tried up to and including 6 miles away. This was my initial thought when my first tests were less than a meter apart. But same behavior from afar.

Hi everyone, I recently purchased two Baofang GM-15 Pro transcievers, and am a little confused when trying to utilize a local repeater. Both radios are set to use the proper CTCSS tone for both TX and RX. Each can individually send and receive to the repeater, and I've had successful radio checks from other users of the repeater with each radio. But when I try sending messages between the two radios, it doesn't go through. They have an LED light which is red when transmitting and green when receiving. When I key a radio and send a message, the light is red while keyed. As soon as I let up, it switches to green. In fact, both radios receive a transmission of the radio's "Roger" beep that transmits when the key is let up on the first radio. But I don't actually receive the message. Doesn't matter if the radios are nearby or miles apart. I've read about Tail and RP-STE, but don't know exactly what they are, if they're something vendor specific, or even relevant. Thanks in advance for any tips!