[GreenKeys] Wobbly FSK ?
Lee Mushel
herbert3 at centurytel.net
Tue Aug 2 18:56:14 EDT 2011
Now that brings back some memories. I will add "wobble" to "chirp,"
"drift" QRH, QRI, T5 etc. And I recall a construction article that I
suppose appeared in the early 50s in Popular Electronics that had you build
a "one tube CW transmitter" on a chassis bent from hardware cloth. It was
crystal controlled but it was a bit light on the power filter side and went
"peeoww pip peeoww pip, peeoww peeoww pip peeoww." Thank goodness I had
it attached to a light bulb for testing and only I heard that! And I am
surprised to learn that anyone had the nerve to use the VF-1! I actually
saw one on eBay the other day!
73
Lee K9WRU
----- Original Message -----
From: "Jack" <wa2hwj at att.net>
To: "'Jim Haynes'" <jhhaynes at earthlink.net>; "'Nick England'"
<navy.radio at gmail.com>
Cc: "'Greenkeys'" <greenkeys at mailman.qth.net>
Sent: Tuesday, August 02, 2011 3:06 PM
Subject: Re: [GreenKeys] Wobbly FSK ?
> Heck...my Heathkit DX-40 and VF-1 wobbled on RTTY all the time!
>
> K0TTY
>
>
>
> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net
> [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Jim Haynes
> Sent: Tuesday, August 02, 2011 3:10 PM
> To: Nick England
> Cc: Greenkeys
> Subject: Re: [GreenKeys] Wobbly FSK ?
>
> I've never heard of it before. What time period do you think this
> came
> from? I assume it was back when everybody was using 850Hz shift and
> fairly wide filters to accomodate drift in the transmitter and
> receiver.
> How rapidly does it wobble?
>
>
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