[GreenKeys] Problems on Proposed Autostart Frequency 10.133

Thu, 6 May 2004 19:45:20 -0400

There is in fact a good deal of relatively modern SSB miltary gear in common
use amongst RTTY enthusiasts, such as the RT-662/GRC-106, AN/PRC-47,
AN/TRC-75, etc.  All have excellent frequency stability and accuracy, far
better than amateur gear.  However, they tune in 1 kc steps and would not be
capable of tuning channels defined in integer multiples of 500 cycles.   I'd
guess many of these folks would be among those most interested in this
proposed project.  BTW, Military RTTY (RATT in Army parlance) modems
typically use a standardized tone center frequency of 2 kc because of this.

73,

John K9WT

----- Original Message ----- 
From: "JerryL" <[email protected]>
To: <[email protected]>
Sent: Thursday, May 06, 2004 1:09 PM
Subject: Re: [GreenKeys] Problems on Proposed Autostart Frequency 10.133

> .5 Khz only requires that you have 100Hz tuning which almost all modern
> (i.e. 1985 and up!) rigs have.  It all had to do with the original xtal
> standards we were all using to 'spot' the frequency way back in the
> 60's.  If we could do it then, using hammy only stuff, I sure don't see
> why we can't do it now using our new modern fancy 'expensive' rigs!  No
> commerical or military gear needed....
>
> Also I might mention, some of the best montoring I ever did, and the one
> that attracted the most attention among lots of folks was the the
> development of the St-6 and the entire Uart series that was done almost
> entirely over the air via rtty.  The internet not being invented at that
> time!  I'm sorry you don't like technical talk, but then again, contests
> bore the heck out of me.  Bottom line is, if you don't want to copy it,
> turn your machine off...
>
> de jerry -n6jp-
>
> ----- Original Message ----- 
> From: "Frederick A Sell" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, May 06, 2004 9:38 AM
> Subject: Re: [GreenKeys] Problems on Proposed Autostart Frequency 10.133
>
>
> > Gang,
> > I've been lurking for a bit on this "autostart net" project.  I am not
> > that active on the air so I will not be a major player in the net, but
> > some comments:
> >
> > A.  NO .5 Kc channels.  Whoever came up with that a while back should
> be
> > shot!  It requires people with some commercial and military gear to
> take
> > a back seat as some of us do not have "modern" DC to Daylight radios
> with
> > 1 cycle readout.  I believe it started with the idea of 2.5 Kc
> channels
> > because of typical SSB bandwidth.  Not a bad idea at first thought, I
> > might not even care if I had a new radio!!
> > On a similar note I cannot use my only radios capable of 60 meters
> > because of this "center of channel" bit, lets just use the dial or
> window
> > frequency and leave it at that.
> > B.  10.137 Kc is our (Clatternet) frequency.  Saturday mornings,  USB,
> > 850 cycle shift, Mark low.  Net moves to 7087 Kc at times for
> propagation
> > reasons.  Like any other freq. these are not "ours" so could be used
> if
> > all other options fail.  Please join us if you can, most participants
> use
> > military mechanical gear but anything is welcome.
> > 3.  As others have said, lets not turn this into a tech fest.  If
> people
> > what to send "private" messages badly enough let them use e-mail.
> Lets
> > just get this vintage stuff on the air, as my friend Chris K6FIB
> coined
> > "It's the clatter that matters".
> >
> > Another country heard from.
> >
> > Thanks for your time,
> >
> > Fred Sell  WA7OBB
> > Corvallis, Oregon
> >
> > M28, M15, home built ST-6, Dovetron, TT/L-2 and other odd homebrew TUs
> > snatched from the jaws of the crusher, yet to be resurrected. (Now
> where
> > did I leave that polar relay?)
> >
> > ________________________________________________________________
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>
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