Jan 4, 1985 - R KS MANUAL OR AUTOMATiC OPERATION: 'LTML. 1150 MW PEAPv.

This doesn't have much to do with short wing pipers, except that the radio in mine is having problems. Its a Terra TXN 960 nav/com.

I have been given reports that my radio is weak and barely readible. Sometimes, I call up on unicom and they say that someone is breaking the squelch, but no voice is heard. Also, I can hear the prop clear as day in my headset, whenever i am receiving someone's transmission.

I know it's not my intercom or headset, because I've tried bypassing the intercom and using several different headsets, but with the same results. Anyone have ideas on what I can try? Taking it to the avionics shop is always a good option, but a $$$ one. Check all your connections and grounds.

Make sure your antenna cable isnt frayed or smashed somewhere. You say you can hear your prop during reception??? Maybe you're hearing noise from your spark plugs/cables?? You sure it's at 'prop' speed and not slower or faster? Not much on an airplane that will cause that kind of interference. Unlike installing a ham radio in my jeep. Sometimes if you have strange static in you radio such as spark plugs, strobes, or alternator you can chase it down with an AM radio, Hard to do with a spinning propeller in front of you though.

Move the AM radio around the vehicle and when it goes crazy you're close to the source. If you can get access to a basic watt meter you can find out if your antenna installation is a problem.

It'll tell you if your radio is transmitting at advertised power and if your antenna installation is bouncing it back(bad SWR) that about all I can think of off the top of my head, good luck. The Terra radio has a problem in that it has to be carefully installed to insure that the connectors are fully engaged. The terra is a fairly tall radio and the box it mounts in needs to be mounted so that the front edge is fully flush with the front of the panel so that the radio goes completely into the rack. This means that the case must also be square in the panel, becausr if the rack is even slightly tilted down in the back the short pins will not make up properly. If the above criteria are not met the radio will probably not work properly and will be intermittent. If the mounting rack is loose and will wiggle try looking at the space in the front of the front panel of the radio and the rack as you push the rear up and down you will see the nature of the problem. Did not say if you had a Generator or Alternator i had a Generator and everthing worked ok till flying one evening and when i turned on the lights to land and Throttled back everything quit working Generator could not keep up had an issue like this and drove me nuts for about 3 weeks before i found it Check the Voltage AT THE RADIO i was only getting 10 Volts to the radio when i did find the issue it was the 2 Gang Main Fuse Block that was the culprit its made of Aluminum and the riviets had come loose from heat and was causeing the voltage drop Just something else to look for when your Bored.

Alright guys, my turn to seek advice regarding radio issues. I have been following the recent radio issue threads lately and trying out all the tips that have been offered but still having problems transmitting. I've done most of the things suggested and they have cleared up the static greatly (thank you all for that) but I still transmit nothing but high pitched noise while at cruise RPM. This is a relatively new developement (last couple months). This leads me to believe it has something to do with the generator because with the engine off and around 1500 or less RPM the noise is gone and the transmission is clear. Receiving is fine during all RPMs, only the transmit side appears to be affected.

At what RPM does the generator kick in? Does it sound like the culprit to you guys? It got too hot at the hangar after my latest test flight earlier but I guess I will be tracing generator wires next time I am out there. Anything specific I should look for? Symantec system recovery 2011 disk iso mounter pc. Thanks, Andrew Besides this one, here are the threads I have copied notes from to take to the hangar (VERY helpful!).

Can you turn your generator off and try transmitting at the problem RPM's? Your generator shouldnt be doing much unless you have things turned on, maybe see if having more or less load on it makes a difference. A landing light adds a good load and can alleviate noise in the circuit. Another thing that would be hard to test with a spinning propeller would be for AC current coming off the generator, maybe you could hook a meter up at the batteries to test for it. If you have AC power coming from the generator it could cause all kinds of weird stuff(like lots of NOISE), if you do its bad news for the generator, but good news for an alternator conversion. Well thats all I've got at this late hour,, good luck!