[AMRadio] New Year's Resolution-Getting Back on AM!


W1EOF w1eof at hamnutz.com
Mon Jan 1 14:05:53 EST 2007


Hi Geoff,

Do you continue to feed the antenna at the apex, or did you move it?

What do you use for feedline (coax, ladderline, etc)??

Thanks.

73,

Mark W1EOF

> -----Original Message-----
> From: ARS W5OMR [mailto:ars.w5omr at gmail.com]
> Sent: Tuesday, December 26, 2006 4:15 AM
> To: Discussion of AM Radio in the Amateur Service
> Subject: Re: [AMRadio] New Year's Resolution-Getting Back on AM!
> 
> 
> On 12/26/06, Bob Scupp <k5sep at yahoo.com> wrote:
> > Geoff-
> >
> > Thanks very much for all the great info on your
> > improvements and additions to your G5RV.
> 
> I don't think you understand.  I'd -never- use a G5RV antenna.  I've
> never heard one that I thought was worth of using for a transmitting
> antenna.  Some people might argue that fact.  If it works for them,
> fine.  I've tried one before, and was never happy with it.
> 
> The antenna I'm talking about, started as a 75m Inverted vee, apex'ed
> around 60'.  In order to build the loop, I merely closed in the bottom
> of the loop.  MY Loop is only 240~250 over-all feet long, that is 60'
> tall, 120' wide and 20 or so feet off the ground.  Shaped like a
> Pyramid, or a Tri-angle, the antenna is called a "Delta Loop", and
> it's a full-wave length on 75m.  Works like a bomb on 75m, and even
> better on the higher frequency bands.
> 
> IF I had the room, I'd do the same thing, for 160m, except I'd want
> the feed point to be -at least- 120' in the air.
> 
> > BTW- I fully agree with K4KYV's statement about the
> > necessity of using a scope to monitor your AM signals.
> > That's something else I will have to work on.
> > When I get to that point I sure do have a great group
> > of AMer's to guide me!
> 
> Otherwise, you never know what's happening in your transmitter.
> 
> There are others that say that monitoring your envelope pattern isn't
> good enough, if you have a scope... you should be watching the
> Trapezoid pattern, instead.
> 
> Well, I've got a dual-trace scope... I just might start watching both ;-)
> 
> 
> Hope you (and everyone) had a great Holiday, whatever you 
> celebrate, if you do.
> 
> 
> --
> Operating your AM rig without a scope
> is like driving our car at night without headlights.(~K4KYV)
> 
> 73 = Best Regards
> -Geoff/W5OMR
> ______________________________________________________________
> AMRadio mailing list
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Partner Website: http://www.amfone.net
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:AMRadio at mailman.qth.net



More information about the AMRadio mailing list

This page last updated 21 Oct 2017.