[AMRadio] Speech Processing

[Doug Hensley]

The GR-1931A was developed for 300 watt AM stations most of which had no free channel evening slot.  AM being populated as heavily as it was, the FCC openlyl supported its use and as time told the story, it worked.   So with all due respect, 50kw and 2 megawatt monsters hardly relate.  Scopes of the period could not do what the 1931A could do.


YMOV but Cheers anyway.


Doug W5JV


Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds.  Looking for something special?  Ask us.







________________________________
From: donroden at hiwaay.net <donroden at hiwaay.net>
Sent: Wednesday, September 26, 2018 5:00 PM
To: W2xj
Cc: Doug Hensley; amradio at mailman.qth.net
Subject: Re: [AMRadio] Speech Processing

Same here ...... totally agree.
Don W4DNR



Quoting W2xj <W2xj at w2xj.net>:

> I have spent most of my career working on AM broadcast rigs, mostly
> 50 KW to 2 Megawatts. I have never found much use for a modulation
> monitor. They usually cause more problems than they solve. A scope
> is much more useful.
>
> Sent from my iPad
>
>> On Sep 26, 2018, at 7:58 AM, Doug Hensley <w5jv at hotmail.com> wrote:
>>
>> I can recommend:
>>
>>
>> https://www.ebay.com/itm/153168062155   one twisted pair in, one
>> twisted pair out (standard broadcast 600 ohms)
>>
>>
>> and the use of something like the General Radio 1931A modulation
>> monitor which I think I have one or two that are available.  First
>> rate stuff.
>>
>> [Image result for general radio modulation monitor]
>>
>>
>> Doug W5JV
>>
>>
>>
>>
>>
>>
>> Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds.
>>  Looking for something special?  Ask us.
>>
>>
>>
>>
>>
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>
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