Maybe your transceiver. Mine have a seperate receive antenna port as built
that can easily be returned to the TX antenna with a toggle switch.
The alternative is a high isolation coax relay that only needs to handle the
xcvr power. There are many 12 and 24VDC versions at hamfests, etc.
Carl
KM1H
----- Original Message -----
From: "Michael G. Carper" <mike@wa9pie.net>
To: <topband@contesting.com>
Sent: Tuesday, September 06, 2011 10:59 PM
Subject: Re: Topband: New entry to TopBand with antenna question
> Pardon me for asking a dumb question... but how do you guys switch between
> the beverage antenna and the inverted-L... given that your XCVR has only a
> single antenna port for both TX/RX?
>
> Mike, WA9PIE
>
>
> -----Original Message-----
> From: Michael G. Carper [mailto:mike@wa9pie.net]
> Sent: Monday, September 05, 2011 8:01 PM
> To: topband@contesting.com
> Subject: RE: Topband: New entry to TopBand with antenna question
>
> Okay... great responses all. Here's what I think I'm gonna do...
>
> I'll go vertical with an inverted L. I'm thinking to be resonant around
> 1.825MHz, I'll need about 128.2' of wire. I'll go up about 70'... then
> the
> rest will be almost exactly horizontal. I'll go with at least a dozen
> elevated radials about 134.8' long. I'll terminate those at a post where
> I'll have an insulator for the "driven element" and one where the radials
> terminate. I'll stick an SO-239 there to make things easy. I figure this
> should be resonant at the chosen frequency.
>
> Later, I'll put up at least one beverage antenna for receive (but there's
> no
> way I'll have a chance to do that initially). Does that sound reasonable
> as
> a starting position?
>
> Thanks to all who talked me out of the B&W Folded Dipole.
>
> Mike, WA9PIE
>
>
> -----Original Message-----
> From: topband-bounces@contesting.com
> [mailto:topband-bounces@contesting.com]
> On Behalf Of Michael G. Carper
> Sent: Sunday, September 04, 2011 11:06 PM
> To: topband@contesting.com
> Subject: Topband: New entry to TopBand with antenna question
>
> Hey folks.
>
>
>
> I've been a ham for 37 years, but I've spent my entire ham "career" on
> 80-10m (with the exception of 7 countries worked on 160m about ten years
> ago). For the most part, the same obstacle has kept me off TopBand that
> prevents most - antenna space.
>
>
>
> Now that I've made DXCC on all bands 80-10m (and very close on 6m). and
> since we've recently moved to a place with 7-acres and a nice tall
> tree-line, I figure my options for 160m are better. That said - we're
> leasing this place and I've probably got 2-years here.
>
>
>
> My goal is simple - make DXCC on 160m within the next 2 years.
>
>
>
> So I'm looking for some advice about the antenna.
>
>
>
> I'm very tempted to buy a B&W folded dipole and call it done. but I'm
> curious about what others are doing. I've got an amplifier, but no
> high-power tuner. So I want to avoid a tuner - the folded dipole seems to
> get me there and I can put it up at 70' or so in the elm trees.
>
>
>
> Thoughts?
>
>
>
> Mike, WA9PIE
>
>
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
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