A Little Range Check Help.
08-18-2007, 10:19 AM
#1
A Little Range Check Help.
I have a 9C radio with R129 PCM receiver and was trying to start and fly my Fokker for the first time. Hit a range check problem I'd never seen before. Walk 40 feet from the plane and lost all controls with the antenna down. To make a long story short. We checked everything, tried two different radios, tried with engine on and off. No help.
This has got to be a bad receiver. Only thing is, I just got the receiver back from being all checked out by Futaba. I am trying a new receiver; but has anyone experienced this before. Can you have a receiver that checks out fine at the factory, but has no range at the field? Comments?
This has got to be a bad receiver. Only thing is, I just got the receiver back from being all checked out by Futaba. I am trying a new receiver; but has anyone experienced this before. Can you have a receiver that checks out fine at the factory, but has no range at the field? Comments?
08-18-2007, 03:39 PM
#2
Senior Member
RE: A Little Range Check Help.
ORIGINAL: splais I have a 9C radio with R129 PCM receiver and was trying to start and fly my Fokker for the first time. Hit a range check problem I'd never seen before. Walk 40 feet from the plane and lost all controls with the antenna down. To make a long story short. We checked everything, tried two different radios, tried with engine on and off. No help.
This has got to be a bad receiver. Only thing is, I just got the receiver back from being all checked out by Futaba. I am trying a new receiver; but has anyone experienced this before. Can you have a receiver that checks out fine at the factory, but has no range at the field? Comments?
This has got to be a bad receiver. Only thing is, I just got the receiver back from being all checked out by Futaba. I am trying a new receiver; but has anyone experienced this before. Can you have a receiver that checks out fine at the factory, but has no range at the field? Comments?
Suggest you refer to "Radio Systems, Accessories, Alterations and FAQ" on my web page, sub sections:
"Range check and Range problem solving"
"Antenna - Rubber Duckie, Micro & Whip Flywire - replace long aerials with loaded base antenna"
"Receiver - FAQ, guides and aids to best reception.."
"Glitches & Jitter in RX & Servo - causes and cures "
and the other associated sections such as "Transmitter - FAQ - Additions, Adjustments, Clonepacs & Repairs."
Regards
Alan T.
[link=http://homepages.ihug.co.nz/~atong/]Alan's Hobby, Model & RC FAQ Web Links[/link]
08-18-2007, 05:42 PM
#3
RE: A Little Range Check Help.
Alan,
I will check your site out. but I did change the receiver and tried another R129 I had (only thing available) - problem fixed.
I don't know what it was and I can't tell which reciever was causing the problem; but one of the three receives I sent back to Futaba for checkout was because it was doing this very thing. Only thing I can figure is that even though they checked it out, they didn't find what was causing this particular problem and it should up again the minute I put it back in a plane.
I will check your site out. but I did change the receiver and tried another R129 I had (only thing available) - problem fixed.
I don't know what it was and I can't tell which reciever was causing the problem; but one of the three receives I sent back to Futaba for checkout was because it was doing this very thing. Only thing I can figure is that even though they checked it out, they didn't find what was causing this particular problem and it should up again the minute I put it back in a plane.
