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If you are using this in repeater mode you need a tuned duplexer for the repeater pair you are using. DO NOT TRUST CHINA'S DUPLEXERS as they seem to fail time and time again, not to mention they are never tuned properly from the factory. I would say this is likely where your issue lies.

Being a ham, I had limited experience with fox hunting. Fox hunting is the hobby's name of locating a transmitter. I took the information I had and moved forward. I could hear the signal in my house with an antenna on a portable in one direction so that burned off about 85% of the area needing checking. I removed the antenna and began driving around until a signal returned on the radio. This further reduces the area as a portable without an antenna will only pick up stronger signals. Holding the radio to my body blocks signals from one direction, and I turn until the signal sounds strongest. Doing that a few times and I ended up driving past the guys house while he was outside. Seeing a vehicle with warning lights and 3 antennas freaked him out cause he and his buddys ran inside and the transmission stopped soon after. I also noticed a few minutes later when I drove past again that the antenna on his car was gone. I did not confront the person, that is not what self policing (which is what HAM and GMRS is) is about. You do the leg work, gather enough evidence, and forward it to the FCC who may do something if the interference can/has caused property damage, or if the incident presents a public safety hazard. Confronting someone this day in age is a good way to get your head blown off, or be posted on the news as racist, or some other crazy negative like that.

i saw that in mine also and was hoping that it would work on anyone who touched the mic that wasnt spose to.....stun is a viable radio protection asset for kids like mine that want to say hi to everyone on the radio....even when ur not home.... also just think of the fun u could have with your brothers or sisters (at least once)..."hey bro go hop on the radio and give me a 3 count so i can listen to the other radio and see if i got it set up right in the car" .... "picks up mic, gets knocked the f down a peg" all the while your around the corner with a camera to video this and post it to a gmrs forum u visit...

I owner two mixed code repeaters. There were two reasons for doing this. A ) Security. For a bit I had an unknown user keying the repeater for minutes at a time. After asking the user not to do this they chose to key the repeater for nearly 30 minutes. Of course the repeaters TOT tripped after 2 minutes, however the user continued to key either until they were bored, or until their radio finally killed itself, nearly 30 minutes and long enough for me to figure out where they were. So I changed only the input tone so the user couldn't trip the repeater (or its twin) again. B ) We kept the original output tone to make it seem like we never changed tones at all. Trying to "scan" the repeaters output would only give the 223 code for output. I figured this would frustrate anyone who is trying to get access without checking with me first.

To be politically correct and technically accurate. I call them Low Parts Count radios. What do you get for buying a $29.95 radio versus a $799.99 radio? Fewer parts. Sent from my SM-T350 using Tapatalk