REFLECTOR: Transponder and Radio issues
Scott Derrick
scott at tnstaafl.net
Sat Apr 11 09:57:58 CDT 2009
1- connector problem on main bus. Check battery, buss and alternator
connectors.
2- battery going south. check battery voltage engine not running, with
no load(12.6-13.0), with radio transmitting(12+)
3- alternator/regulator failure. check battery voltage with engine
running, no load(13.8-14.2), with radio transmitting(13.6-14.2)
4- noise on battery buss. check sound of radio transmitting, engine not
running, then engine running.
I doubt your transponder and com radio are going south at the same
time, unless your system experienced a serious voltage spike, even then
I'd be surprised.
Scott
aminetech at bluefrog.com wrote:
> This past week on my return fllight from Corpus Christi to MS, I was
> told by 3 ATCs that they weren't receiving my mode C. One received it
> briefly. Also I was told that my radio was weak. I receive
> transmissions fine, but have noticed when transmitting that the volume
> in my headset is very loud and distorted. My plane is 10 years old
> with 670 hours. Is this something to get repaired, or is it tme for
> new equipment?
>
> John
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