[Hallicrafters] 40 m antenna used on 80 m - what to expect?

[Carl]

>From 1956 to 59 I used a 40M dipole on 80M not knowing it didnt work; 
there was no room for an 80M version on a postage stamp lot out in 
Nassau County on LI. It was all of about 20' high.

With a HB 6AG7/6L6 I had about the same experience as Oliver including a 
FCC citation but mine was from the 3rd harmonic which was QRMing a 
Canadian aviation frequency.

After getting my General and a Viking I, I  did what many other 
teenagers did....Snuck downstairs in the wee hours in hopes of working 
CA and HI. Did them both altho the HI report was an optimistic 339 after 
several repeats but I did get the QSL. With the roller inductor in the 
pi-net that Johnson would load into anything.

No Hallicrafters involved tho, the rcvr was a HQ-129X.

Carl
KM1H



----- Original Message ----- 
From: "Oliver J. Dragon" <spress at rcn.com>
To: "Waldo Magnuson" <magnuson at mac.com>; <Hallicrafters at mailman.qth.net>
Cc: "Waldo Magnuson" <magnuson at mac.com>
Sent: Thursday, October 02, 2008 6:37 PM
Subject: Re: [Hallicrafters] 40 m antenna used on 80 m - what to expect?


> Skip,
>
> Sometimes ignorance is bliss. (my ignorance, in this case).
>
> Upon receiving my Novice class ticket in 1960 I immediately put up a
> 40M dipole about 25' off the ground and fed
> it with 70' or so of RG-59 directly to the pi-net output of my just
> completed Knight Kit 50 watt transmitter.
> I had two 40M crystals & had a great time. The SX-99 was connected to
> an 80' #12 copperclad longwire (the wire still
> had the 'set' and coiled back up close to original shape when I took
> it down 9 years later). Didn't have to worry
> about an antenna change-over relay - just turned down the RF gain on
> the SX-99 when transmitting.
> Of course, both antennas were erected during a snowstorm - can you
> think of a better time?
>
> Anyway, after about 3 weeks on the air I got the bright idea that 80M
> could be real fun, so I went over to
> Harrison Radio (225 Greenwich St., in Manhattan and picked up two 80M
> xtals & proceeded to run the Knight straight
> into the 40M dipole on 80M. No problem. Didn't know what the swr was
> (no swr meter); didn't know how many of the 35 or so input watts
> showed up at the antenna (no wattmeter) but I worked up & down the
> east coast from NY; out to the midwest (Chicago, Detroit, St. Louis).
> Had more fun on 80 than on 40. Less qrm andmore slow-speed guys to 
> chat with.
>
> Only problem was with harmonics. My 3704kc xtal doubled to 7408kc and
> careless dipping one day to the harmonic
> earned me a 'special official reception report' from the FCC. Solved
> that by more careful tuning and a harmonic trap courtesy
> of QST.
>
> Bottom line - give the 40M dipole a try on 80 and you might be
> surprised. Have fun.
>
> 73
> Ollie
>
> At 09:14 PM 10/1/2008, Waldo Magnuson wrote:
>>I have a 40 m dipole horizontal antenna and would like to try
>>transmitting (HT-44) on 80 m.  What should I expect?  I have a
>>Ten-Tec 229 antenna tuner and may be able to match - suggestions
>>(helpful) would be appreciated.  Thanks.
>>73,  Skip  W7WGM
>>
>>______________________________________________________________
>
>


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