RCMF

Level 1 => Radio Gear => Topic started by: Erez on October 17, 2020, 07:54:24 am

Title: FM Rx antenna routing
Post by: Erez on October 17, 2020, 07:54:24 am
A bit of a basic question here:

I'm routing an old FM Rx antenna wire outside the model, towards the tip of the stab (because routing to the top of the fin isn't practical due to a full chord rudder balance tab at the top of the vertical tail).

There's about a 6" length of antenna remaining beyond the attachment point - should I leave it dangling free in the wind or is it better to make a 90 degree turn and tension it towards a point on the fin L.E.?
(Avoided routing inside the fuselage due to having 3 metal pushrods there).
Title: Re: FM Rx antenna routing
Post by: PDR on October 17, 2020, 07:57:11 am
Leave it dangling un;ess there's a specific reason not to

PDR
Title: Re: FM Rx antenna routing
Post by: mart49 on October 17, 2020, 11:28:10 am
In addition to PDR's comment it is not a good idea to fold it back on itself as this effectively shortens/detunes the antenna to some extent giving rise to a potential range issue.
Title: Re: FM Rx antenna routing
Post by: The Saint. (Owen) on October 17, 2020, 13:05:37 pm
I've (and others in my club) just leave it dangling because it won't harm anything.  :af
Title: Re: FM Rx antenna routing
Post by: PDR on October 17, 2020, 16:23:04 pm
Quote from: The Saint. (Owen) on October 17, 2020, 13:05:37 pmI've (and others in my club) just leave it dangling because it won't harm anything.  :af

Well non-aggressive dangly bits tends to be a problem at your age. I gether they offer pills that can help.

But the OP was talking about antennas.

PDR
Title: Re: FM Rx antenna routing
Post by: The Saint. (Owen) on October 17, 2020, 17:41:54 pm
 ;D