[Elecraft] Questions re: MP-1 antenna

[JimWMiller@aol.com]

Greetings,

Like George, I also have an indoor Attic Dipole (Alpha-Delta parallel 
dipoles).
It's bent into a 1/2 wave loop so that the normally 82 feet antenna will fit. 
 
On it resonates on 40->10meters and works almost as well as my outdoor 
(w9inn) dipole. On 80 meters it works with a transmatch and is adequate but 
not great.

The bottom line is that it is pretty good, but the shorter the antenna the 
less well it performs.   There is *no* magic when it comes to limited space, 
only tradeoffs.

I like the shortened loaded dipoles sold by w9inn. (See adds in QST).  Works 
well in the attic and even better outside.

73,
Jim
WA2UMP
-----------------------------

In a message dated 3/13/2002 6:05:53 PM Eastern Standard Time, w5yr@att.net 
writes:


> Not to be pulling your leg, but I have four full-size wire dipoles in my
> attic for 80, 40, 30 and 20 meters, all fed with a single RG-213 coax
> through a 1:1 balun. Inverted-Vee configuration with the center probably 30
> feet above the ground.
> 
> The 80-meter dipole works well for short-distance contacts and some DX. 
> 
> I fear that your question by definition has no answer since you specify an
> oxymoron: "efficient indoor antenna that works on 80 meters."
> 
> Sorry, but Dan has the right idea. Anything done to reduce size also
> reduces efficiency, radiation resistance and bandwidth.
> 
> 73/72/oo, George W5YR - the Yellow Rose of Texas         
> Fairview, TX 30 mi NE of Dallas in Collin county EM13qe   
> Amateur Radio W5YR, in the 56th year and it just keeps getting better!
> QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771 I-LINK 11735
> Icom IC-756PRO #02121  Kachina 505 DSP  #91900556  Icom IC-765 #02437
> 
> All outgoing email virus-checked by Norton Anti-Virus 2002
> 
> 
> 
> Dan Barker wrote:
> > 
> > TANSTAAFL
> > 
> > Dan / WG4S / K2 #2456
> > 
> > <snip>
> > If anyone knows of an efficient indoor antenna that works on 80 metres, 
> I'd be interested to learn of it.
> 
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