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This one (I have 3) is 380-470 - and I was transmitting on 467.700, so you're right, it's right up there at the edge.. Measured with the antenna with SWR of 1.02 ...

The expected behavior is, if the transmitting radio is on narrow and the receiving radio is on wide, than the voice will sound quiet and possibly static-filled. It will also sound tinny due to how the audio filters are tuned. Where the processor normally pulls audio for bass, there is no voice to sample. This is because, best case, only half of the receivers channel space is occupied with data. The rest is noise. In the opposite case, if the transmitting radio is on wide and the receiving radio is on narrow, than the voice will sound overly loud, possibly distorted and possibly have a lot of bass. This is because only half of the transmitter's signal is being heard on the receive side, making is sound over-modulated and the audio segment where he treble is sampled is missing. Based on that understanding, mismatching bandwidth should not cause a variation, starting out loud and shifting quiet. Its either loud and bassy or quiet and tinny, depending on which side of the mismatched bandwidth setting you're on.

We use MURS all the time when our jeep club gets together.

Panavise does make a mount for the liberty https://www.panavise.com/pdf_indash/751052008.pdf They have the f350 covered as well, at least for a remote head mount

I ran mine at a 50% duty cycle for close to half an hour. Tried to stress it on purpose. Good point. Hopefully he'll see this and let us know. I have a 300w dummy load that is good from DC to 500MHz.

You said you’re testing on a dummy load. Is Randy? That could make a difference. Reflected power causes heat also.

If it sticks... Until it was totaled in a roll-over last year, I'd gone twenty years with only two holes in a Jeep Cherokee. The Yaesu FT-100 transceiver was carpet taped under the passenger seat, remote control head mount taped "under" the parking brake (enough offset to reach the controls, but that was the flattest spot to tape the mount), microphone in a hanger taped on the dash. The holes? I decided the speaker wasn't that audible, so put an external speaker in at the knee region of passenger seat, side of central console. All wires were routed under trim panels (and power went around door jamb and along inside fender space). "Replacement" rust-bucket has plastic that just won't take adhesive tapes... I've tried double-face tape, foam mounting squares, 3M Command Strips, etc. And none would hold. If it wasn't for the presence of rust and other wear (a 2008 Liberty with 190k miles, vs my former 1999 with just 75k) I wouldn't have a radio of any type. No room under passenger seats (passenger present sensor for air bag is in the way, transfer case bulge under driver seat, no flip up rear seat). ICOM 5100 is mounted in the plastic bin under the rear cargo area, wiring (in plastic flex conduit) clamped along side panels, etc.. The MXT-115 has been swapped out for a DB-20G, but I still need to fabricate a quick-disconnect power lead for it, currently using the lighter plug for power Similar conduit (next size smaller) running on the other side has the antenna cables from CB & GMRS mag-mounts.

Thanks for explaining this marcspaz, helps my understanding of things even if not the issue here. Gil

in the setting #41 of the GMRS 9R Radio say R-TONE. 1000Hz,1450hz etc What is the function of this setting? i am new on GMRS and i receive that radio today. Thansk everyone

Thanks for op asking this question and thanks for this clarification Sshannon, I was also wondering about this and went looking for info about it. I recently and successfully programmed in a local repeater I’m fortunate is only 4.6 miles from my home and hadn’t yet wrapped my head around the difference between these repeater tones and the CTCSS or DCS codes. I’m new to the GMRS world and really appreciate the community here sharing their knowledge.

Wow... yes, Sir. That is a bit hotter than mine. Looking forward to how the mobiles compare. The owner's manual says the high-side operating temperature is +60* C (140* F). They have to expect the radio will get hotter than the environmental temp, but I can't find anything about it. I have a friend or two who may know. I'll ask around.

I agree with you but his suggestion corrected the problem. He wasn’t 100% sure himself. I did go back to the previous code and the problem returned. I called him back and told him what happened. His suggestion avoid that code pick another you have plenty. Lol He said it didn’t make sense to him either. He just said he’s had a few friends that have have issues with dcs and just conveyed what experience they have had but can’t explain why and they too changed codes and problem resolved.

Try swapping radios. You will get to experience what she hears, to help better understand, or establish if it's environmental interference. Let us know what the firsthand experience is. If you can use your phone to share a video, we may pick up an indicator, too. You may just have a defect in that radio.

are you 100% certain you werent just getting lazy-arm and the mic was getting further from your noise-output hole as you were talking?

I'd be concerned at having a "cross mode" specified, but that may just be how CHIRP shows it. The key criteria is "Tone Mode". The displayed window (I've never used the "property" page, just edited in line on the spreadsheet layout) shows you have "TONE" selected. That choice means you are SENDING a CTCSS tone, but do not expect one on receive. If you need a receive tone, the mode needs to be TSQL. DTCS entries are ignored. "Tone Mode" of DTCS would mean the DTCS entries are active, and the tone/tonesql entries are ignored. That looks to be the Tone-Burst setting (menu #40 on my BTech units). I don't know of any GMRS system that requires tone-burst (and don't even know of a US Amateur repeater that uses it). Tone Burst is common in the UK and likely the rest of Europe on Amateur repeaters (they don't have GMRS services). To "wake up" a repeater, one has to first send (often using a dedicated button on the radio) a few seconds of the required tone-burst (1750 seemed to be the value used for most UK repeaters). After the repeater is awake, regular PTT activity keeps it alive. After a pause (no PTT) of a few minutes, the repeater goes back to sleep. On the BTech, the tone-burst is sent using [F]+[PTT]

From this page: https://www.miklor.com/UV82/UV82-MenuDef.php R-TONE Repeater Tone - Used to activate those repeaters requiring a specific audible tone to be transmitted for access. - Sending tone requires first pressing the PTT, then pressing the [F] key. This is not to be confused with a sub-audible CTCSS or DCS code.

80 years in prison and a $1,000,000,000 fine, or possibly a no-no letter, maybe. Most likely nothing. Depends on who you're asking.

I could see a pretty cool use case in which a Retevis RT97 repeater is used for a campsite (or a church), and a bunch of little BF-T11 satellites for the users