|[AMRadio] new antenna and matchbox a bust.|
KB2WIG at twcny.rr.com
KB2WIG at twcny.rr.com
Tue Jan 30 12:55:17 EST 2007
"What advantage does germanium have?'
I think its the lower knee voltage which allows for a more sensitive
----- Original Message -----
From: Brett gazdzinski <brett.gazdzinski at verizonbusiness.com>
Date: Tuesday, January 30, 2007 8:39 am
Subject: RE: [AMRadio] new antenna and matchbox a bust.
To: 'Discussion of AM Radio in the Amateur Service'
<amradio at mailman.qth.net>
> What advantage does germanium have?
> I have lots of insulated wire
> > First, Nice QSO Sunday night.
> > Second, my antenna is a full 80m dipole supported at 75ft by
> > two pinetrees
> > that are <50ft apart, that means that there is a LOT of
> > Dangle there(around
> > 35 ft or so I think). I just pulled the support lines over
> > the trees, and the
> > ends of the dipole actually drape over the top and down the
> > back of each
> > tree. Its insulated #12AWG stranded wire, fed with cheap
> > brown 300 ohm twin lead,
> > that drops down to a choke balun inside the attic (15 turns
> > at 4.5 inch
> > diameter). This is definitely NOT an optimal setup. BUT I
> > do get out, and I've
> > been heard as pretty far off on AM, and work the North East
> > with No Problems.
> > (I run a Valiant at about 120watts output). I can load it
> > up on any band
> > except 160, using my el-cheapo MFJunk tuner. (160 causes
> > quite a light show)...
> > The biggest problem I have with it is that the pines are
> > always dropping
> > branches after storms and sometimes they pull down the
> > antenna or part of it
> > with them.
> > SO if there is a significant vertical portion to your dipole,
> > don't sweat
> > it. It will just add some vertical polarization, and change
> > the pattern, but
> > using trees will skew that anyway.
> > ______________________________________________________________
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