[ARC5] Can yoiu say...

[Kenneth G. Gordon]

On 13 Jun 2017 at 10:24, Michael Bittner wrote:

> I found one hacked ARC-5 xmtr, at a swap meet, that had copper screen door screening crudely 
> bolted over all the louvers and the back end where it's open on the sides.  Mike, W6MAB

That idiot idea was presented in great detail in at least one of the Surplus Perversion 
Manuals.

In point of fact, and on the basis of some serious testing by Dave Stinson, the ARC-5s are 
BETTER, when used as designed, for harmonic output than many other commercial rigs of 
the day.

They fully comply with today's stiffer FCC requirements, in fact.

Of course, the truly idiot 21 MHz IF that the TV manufacturers came up with was another 
important factor. I wonder what fool arrived at that choice?

And the fact that so many TV viewers were actually watching what we would call "fringe" 
signals these days didn't help matters either.

As an example, the BC-610 was also "notorious" for TVI at the time. On the basis of MY 
experiments with that issue, ALL of the TVI was coming from the improperly configured 
parallel 807 driver stage. Once that was addressed, I had no more TVI problems from my 
BC-610s.

Ken W7EKB

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