[50mhz] [VHF] Re: Cushcraft A270-10S (triband VHF/UHF) beam question

Cliff Sojourner cls at employees.org
Tue Apr 15 01:46:25 EDT 2014


great story

if you want an excellent 6m + 2m yagi, take a look at the top photos on 
my QRZ page

http://www.qrz.com/db/K6CLS

This is a KF2YN "boxkite" yagi, works great!!

Cliff K6CLS

On 2014-04-14 22:06, William Pasternak wrote:
> John and All
>
> Adding to Chris comment:  Years ago my late friend Larry Levy and I 
> were given a Finco A-62 dual band 6 and 2 meter beam to review for 73 
> Magazine.  He put it up at the family's summer vacation home at 
> Rockaway Beach, Queens NY less than a block from the oceanfront.  I 
> was about 15 air miles line of sight away in Bensonhurst Brooklyn.
>
> Using his Saturn 6 Halo I copied him at about S-8 on 50.4 Mc AM. (This 
> was before MHz had been invented :-) .) He switched to the Finco A-62 
> (fed by 7/8" hardline) aimed it toward me and was barely audible above 
> the band noise.  On 2 meters I could not hear him at all nor could he 
> hear me.
>
> After some experimentation he found that removing the "collinear 2 
> meter elements" that the A-62 performed as well as any other 3 element 
> 6 meter yagi of the mid-1960's era.  Thats how bad the interaction was 
> between the 6 meter and 2 meter elements was.
>
> If you have never seen one, follow this link and you will get quite a 
> chuckle out of the claims made by the manufacturer for an antenna that 
> turned out to be naught but a rotatable dummy load.
>
> http://elektrotanya.com/PREVIEWS/45612216/23432455/antennak/finco_a-62_combination_6_and_2_meter_yagi_antenna.pdf_1.png 
>
>
> One last item:  A bit off topic but entertaining.  At that summer 
> location Larry was running a pair of homebrew 40 watt transmitters 
> using single 6146 tubes as the final amplifier and what he called 
> "Hairy Modulation" to place his voice onto the carrier.  The modulator 
> was naught but an old toss-away single ended public address amplifier 
> that used a single 6V6 output tube in Class A. To use it as a 
> modulator, he simply connected the plate of the 6V6 to the screen grid 
> of the 6146 in either of the RF decks through a .5 mfd 1kv capacitor.  
> The name "Hairy Modulation" came about from his first QSO on 6 meters 
> where the answering station told Larry that there was plenty of audio 
> but that "...it sounded kind of hairy."  And with that, "Hairy 
> Modulation" was born.
>
> They say truth is stranger than fiction, but those who knew the late 
> WA2INM never doubted his exploits on 50 Mc and above -- most of it 
> well documented in the pages of the defunct 73 Amateur Radio magazine.  .
>
> de
> WA6ITF
>
>



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