[BC] HD AM radio versus AM Stereo

[Robert Meuser]

I was there.

Broadcasters were stampeded by Leonard Kahn aided by some inept marketing on the 
part of Magnavox. A lot of engineers of the day had their huge egos bolstered by 
Leonard and they bought everything hook line and sinker. I installed and 
independently tested that (and every other system) it played fine and was easier 
than the other to make play properly.

Unfortunately it took the good engineering efforts of Continental to clear up 
the misconceptions about the system and by then it was too late.

R

DANA PUOPOLO wrote:
> The irony is that the system initially selected by the FCC (Magnavox) wasn't
> so bad! If the (stupid) broadcasters had just said "OK" and implimented it, AM
> music radio would likely be in much better shape then it is today.
> 
> Once again we shot off our own feet!
> 
> -D
> 
> 
> 
> ------ Original Message ------
> Received: Sat, 24 Dec 2005 02:06:01 PM PST
> From: Robert Meuser <Robertm at broadcast.net>
> To: Broadcast Radio Mailing List <broadcast at radiolists.net>
> Subject: Re: [BC] HD AM radio versus AM Stereo
> 
> WFIFeng at aol.com wrote:
> 
> 
>>Exactly. I think Kahn's system was by far the superior system, but the $ did
> 
> 
>>the talking, not the engineers. The big $ manufacturer had more $ to throw 
>>around than Kahn did, so that's why the technically inferior system won.
> 
> Sound 
> 
>>familiar? (IBUZ vs DRE/DRM)
>> 
>>
> 
> I beg to differ. You must have never worked with the 'system'. First it 
> was not a system as there was no matching receiver, second you could not 
> have his generator create the correct wave and be loud at the same time. 
> If you got loud, you ran the risk of generating too much spectrum and 
> corrupting the ISB signal. Motorola was not the best system either. The 
> problem with both was the then necessary need to be fully compatible 
> with existing receivers. The FCC later gave up on that requirement. The 
> best system would have been Harris in full quadrature mode (they also 
> had $$ as did the Magnavox people). A lot of engineers were initially 
> fooled by Kahn a number leared to know better.
> 
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