[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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