almac wrote:a bit of rf noise over my rado when i transmit.
guess i should trim down my antenna cable(i have coiled up about an extra meter); hopefully that might get rid of the noise.
do you guys have any thoughts on noise filters/suppressors?
the length of the coax is unlikely to affect much, however it's quality and proximity to other radios/antennas will. kinks in the coax are bad and cause issues like this.
Unfortunately though, when you transmit, your radio is putting out 50w of power within a few feet of your stereo's antenna... it doesn't matter much what you do, keying the mike will likely affect your stereo to some degree. some things that help:
- don't use high power when you don't need to. This is the big one, most of the time you can get by just fine on 5 watts, and it won't be as likely to leek in to your stereo. (Legally you also are supposed to use the lowest required power...)
- keep the antennas as far apart as possible, I have 2 antennas on my roof, and the rear one doesn't affect my stereo as much as the front one.
- make sure it actually is RF noise, frequently it's actually noise through the power side instead, make sure everything is well grounded, and try to isolate the power from the stereo and power to the radio to make sure they aren't interfering. also make sure you used heavy enough wiring for the radio, I wouldn't go any smaller than about 12 gauge wire (I personally use 10), anything less will generate more noise.
You can get filters, but for commercial electronics, they generally don't do all that much because the units themselves aren't well enough shielded (you put the filter on the antenna wire, and then the RF just goes straight through the case anyway...) it's an unfortunate side effect of affordable electronics.
Good Ship 
but that is ok. i want to upgrade the dome light to the larger dome light from the rear of a bus anyways. 
"I could be just around the corner from heaven, or a mile from hell." -- Jackson Browne, "The road and the sky".