Guest Dudecw Posted March 8, 2023 Report Posted March 8, 2023 I am having a strange issue with my mobile radio. I purchased a KG1000G+ and installed in my Land Cruiser. When the vehicle is off everything works perfect. even if I turn the key to on everything works fine. Once I start the engine, I can receive but not transmit. It appears as though I am transmitting from my radio but on the other end they can’t hear me. This only happens when I have a “privacy” tone enabled. When I switch to a regular GMRS channel with no tone then everything works great engine on or off. Once a privacy tone is enabled (on both radios) then I can transmit with the engine off just fine. Engine on and no transmit. I have installed a noise filter in line with the power supply and had no change. I think it has something to do with the Alternator. If I take the belt off and start the engine it seems to work just fine. Any ideas? Has anyone encountered this before? Quote
WRVD377 Posted March 8, 2023 Report Posted March 8, 2023 10 minutes ago, Guest Dudecw said: I am having a strange issue with my mobile radio. I purchased a KG1000G+ and installed in my Land Cruiser. When the vehicle is off everything works perfect. even if I turn the key to on everything works fine. Once I start the engine, I can receive but not transmit. It appears as though I am transmitting from my radio but on the other end they can’t hear me. This only happens when I have a “privacy” tone enabled. When I switch to a regular GMRS channel with no tone then everything works great engine on or off. Once a privacy tone is enabled (on both radios) then I can transmit with the engine off just fine. Engine on and no transmit. I have installed a noise filter in line with the power supply and had no change. I think it has something to do with the Alternator. If I take the belt off and start the engine it seems to work just fine. Any ideas? Has anyone encountered this before? That certainly sounds strange. Not that I would know how in this case, a privacy tone is a problem with alternator noise, but the only thing I did not see you write is if you tried to shift the tone from one end of the settings to the other. To see if any of them work. I don't know how the noise could strip out or alter the tone but not affect anything else. However, this forum has some people that have been around a lot of stuff and one of them may have heard such a thing. Quote
WRUU653 Posted March 8, 2023 Report Posted March 8, 2023 I wish I could help on this one... I do think the alternator may be a good place to start but it's puzzling that it would only effect when tones are enabled. Quote
PartsMan Posted March 9, 2023 Report Posted March 9, 2023 What if you transmit with a tone but the other radio does not have a receive tone set. Quote
OffRoaderX Posted March 9, 2023 Report Posted March 9, 2023 18 minutes ago, PartsMan said: What if you transmit with a tone but the other radio does not have a receive tone set. If the receiving radio has no receive-tone set, it will still hear the transmission. If the receiving radio has a different tone set, or of the receiving radio had a tone set, but the transmitting radio is not sending any tone, then receiving radio would not hear it. SteveShannon and WRWK637 2 Quote
SteveShannon Posted March 11, 2023 Report Posted March 11, 2023 31 minutes ago, WRWJ697 said: I need help to get my own repeater What kind of help do you need? Quote
gortex2 Posted March 11, 2023 Report Posted March 11, 2023 Looking at the maps it appears there is a repeater in your town already. Have you used this one or talked to the owner yet ? If not reach out to him. There are also repeater north, east and west of your town. Quote
Lscott Posted March 11, 2023 Report Posted March 11, 2023 On 3/7/2023 at 10:22 PM, WRUU653 said: I wish I could help on this one... I do think the alternator may be a good place to start but it's puzzling that it would only effect when tones are enabled. The alternator “whine” is a few hundred hertz’s and might be screwing up the tone decoding on the repeater end since it’s in that range. The sub-audio-able tone filter in the radio might prevent you from hearing it. This is just my guess. WRVD377, SteveShannon and WRUU653 3 Quote
PartsMan Posted March 14, 2023 Report Posted March 14, 2023 On 3/9/2023 at 3:34 PM, OffRoaderX said: If the receiving radio has no receive-tone set, it will still hear the transmission. If the receiving radio has a different tone set, or of the receiving radio had a tone set, but the transmitting radio is not sending any tone, then receiving radio would not hear it. Sorry. I wasn't clear. I meant the OP with the radios he is trying to diagnose this problem on. Quote
WRVD377 Posted March 15, 2023 Report Posted March 15, 2023 On 3/11/2023 at 2:55 PM, WRWJ697 said: I need help to get my own repeater How does that help this person's issue? What do you need? Quote
HK2GO Posted March 15, 2023 Report Posted March 15, 2023 Cars can do weird things to radios. I had to add GMRS channel 13 and MURS channel 1 to my skipped channel list on my HT because of RF interference. In the OP's case a rf filter on the radios input power line may help, but there is no guarantee that it will. WRVD377 1 Quote
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