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#1
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"scratchy" radio transmission
I would try replacing the coax from Radio to antenna in ONE piece. You
might first try just loosening and tightening the connections. If you have your coax all tie-rapped down, Just leave it and see if a new coax loosely installed does the job. Tie-rapping too tightly can damage the coax. Many times it is just bad ends. -- Cy Galley - Chair, AirVenture Emergency Aircraft Repair A Service Project of Chapter 75 EAA Safety Programs Editor - TC EAA Sport Pilot wrote in message ups.com... I am looking for ideas here; ATC says my radio transmissions sound 'scratchy' or 'staticy' as little as 15 miles out on callup. I have been going nuts trying to find the cause. The aircraft has 2 independant radios, 2 antenna systems (one on top of the fuselage, one underneath). One radio replaced as an update recently. Both radios have been checked out by the factories recently and pronounced fine (one Narco Mk12D and one Icom). Been through the wiring and grounds several times and found nothing. Tried different headsets (note: the voice sideband through the headset sounds perfect). ATC said no difference with alternator shut off. Reception is always perfect. Complaints seem to pick up more in the cold weather. Don't know if its important but maybe once or twice each summer I get alot of static in the headset that seems to disapate in a minute or two, but never in the winter. If I were generating a large static charge in the dry winter air wouldn't it effect my reception? Some days I get complaints even when taxiing for takeoff. Any ideas what to try next without going on an expensive fishing expedition? Jim |
#2
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"scratchy" radio transmission
Cy Galley
Dec 31 2005, 10:30 pm show options Newsgroups: rec.aviation.homebuilt From: "Cy Galley" - Find messages by this author Date: Sun, 01 Jan 2006 03:30:55 GMT Local: Sat, Dec 31 2005 10:30 pm Subject: "scratchy" radio transmission Reply | Reply to Author | Forward | Print | Individual Message | Show original | Report Abuse I would try replacing the coax from Radio to antenna in ONE piece Both coaxes from both radios to both antennas? Odds seem kinda high that both are bad, don't you think? Jim |
#3
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"scratchy" radio transmission
Not if the same person made the ends and ty-rapped them too tight.
wrote in message oups.com... Cy Galley Dec 31 2005, 10:30 pm show options Newsgroups: rec.aviation.homebuilt From: "Cy Galley" - Find messages by this author Date: Sun, 01 Jan 2006 03:30:55 GMT Local: Sat, Dec 31 2005 10:30 pm Subject: "scratchy" radio transmission Reply | Reply to Author | Forward | Print | Individual Message | Show original | Report Abuse I would try replacing the coax from Radio to antenna in ONE piece Both coaxes from both radios to both antennas? Odds seem kinda high that both are bad, don't you think? Jim |
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