Technical, Techniques, Hints, and Tips > Radio Equipment

Receiver aerial length

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John W E:
Hi all,

Just a quick query.  Has anybody altered an aerial on their receiver to incorporate it into say, a deck guardrail fitting?  If the model is of sufficient length and the railings around the outside are the same length as the aerial on your receiver.   Has anybody every cut short the aerial wire off the receiver and soldered it to the deck railings, using the railings as the extra length on the aerial.   Obviously, the railings have to be of a metallic construction.  I wonder if this can be done?

 :) Aye
John E
BLUEBIRD

gribeauval:
I do this with all my lifeboats but in my case I use the actual VHF aerials on the model as the vertical section not the handrails. I use a small 1mm plug and socket to allow the superstructures to be removed.  ;)

Mike

John W E:
Hi Mike, do you notice any effect on your transmitter's range? or...any side effects like jittery servos or anything?

aye
john e
bluebird

Doc:
John,
Can it be done?  You bet!  Almost anything metalic above deck can be made into 'part' of the antenna.  Handrails, masts, scale antennas on those masts, and so on.  Antenna length isn't all that critical.  Shortening an antenna isn't exactly the 'best' thing to do, but lengthening them doesn't hurt.
Side effects.  Certainly possible, not really all that likely though.  If an antenna is shortened or 'lowered' the range will suffer to some extent (range testing!).  Getting the antenna higher will usually extent range to some extent.  Probably not much, but you won't know till you try it (talking feet, not hundreds of feet range).
Forgetting to connect the antenna to the extensions is the worst part of the whole thing.  Really cuts down on range! lol
 - 'Doc

gribeauval:

--- Quote from: BLUEBIRD on February 26, 2007, 12:59:40 pm ---Hi Mike, do you notice any effect on your transmitter's range? or...any side effects like jittery servos or anything?

aye
john e
bluebird

--- End quote ---

Not if the plug is tight in the socket and as Doc says range suffers if you forget to plug it in !!!! ;D ;D ;D

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