>antenna inside the boom. I do this on my 2M...
Good, an authoritative answer, from experience. I was wondering if the
"carbon boom/antenna" question was a urban legend, like the downwind turn.
Seems to me that being a "sorta-conductor" in a CF-laminate tube that the
carbon would not attenuate the signal too much. On a super-slippery design
like the Allegro anything that can be done to clean up the airframe, the
better. May not have a pratical significance, but it would from
aesthetics...
--Bill
>From: Mark Drela <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: [RCSE] RE: CF Booms or pushrods as RX antennae (follow up
>Date: Fri, 03 Aug 2001 10:43:04 -0400
>
>Before anyone does something risky like use the CF boom for
>an antenna (see Don Stackhouse's post) I suggest they first
>try simply running the antenna inside the boom. I do this
>on my 2M and I get well over 100 ft in a ground range check.
>There is no range degradation that I can detect.
>
>One should realize that a CF boom is not like the typical
>shield used in coax cables. The latter must have the
>shield grounded to the circuitry to function properly.
>The CF boom is not grounded to the RX. EE majors can
>probably give better specifics here.
>
>On HLG's I use one of the wire pushrods as the antenna
>to save weight (DJ Aerotech has more info). Although
>the pushrod is next to the CF boom, the system works fine.
>The pushrod is much shorter than the standard antenna
>so I get only about 50-60 feet of ground range, but this is
>plenty for a small glider which can't be flown very far away.
>
>- Mark
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