[NLRS] ACSB repeater - long

Thu, 3 Jul 2003 08:30:57 -0500

Back a while ago there was a spirited discussion about using 146.46 as a
talkback freq. for 10ghz.  At the time I made a joke to Donn about a
Sideband vhf repeater for talkback and range extension.  After that I
started to research for a plug and play device that would allow Handheld use
and came across the SEA products which have been showing up on EBAY.  WB6JNN
did some work several years ago as a result of his stints in SBE and KLM
which is documented in his link below (the acsb stuff is towards the end of
the read).

I propose that we, as a club, might set up a 222 MHz ACSB repeater to act as
a talkback for various functions like 10ghz coordination and regular
chit-chat.  This would be in keeping with our VHF/UHF/MW weak signal SSB
tradition/mission and may provide for some interesting results during band
openings as regular SSB units can talk to the repeater with some fiddling or
you can build and put in a board.  This would also allow for less equipment
and handheld operation when you are lugging a bunch of 10ghz equipment
around.

Just a though.

S. Earl Jarosh (ex. Steve?)
N0HZ  (ex. KA0VYB) No Hertz, No Gain
612-868-1313
[email protected]
[email protected]
www.moneycenters.com

.
----- Original Message -----
From: "S. Earl Jarosh" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Thursday, July 03, 2003 7:57 AM
Subject: Re: [RadioModifications] SEA ESP1000 repeater mods?

> Amplitude Compandered SideBand!!  That's not your daddy's FM!   Now that
> repeater is starting to look interesting to me.
>
> Check out http://www.qsl.net/wb6jnn/middle.htm for more background.  A
long
> but interesting read especially to VHF/UHF/MW 'ers.
>
> Kenneth, have you made any headway on the conversion?
>
> S. Earl Jarosh
> N0HZ  (ex. KA0VYB) No Hertz, No Gain
> 612-868-1313
> [email protected]
> [email protected]
> www.moneycenters.com
>
> ----- Original Message -----
> From: "W8DZN" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, July 02, 2003 12:46 AM
> Subject: RE: [RadioModifications] SEA ESP1000 repeater mods?
>
>
> > Here is a reply the received from their Tech Support earlier this year!
> >
> >
> > The ESP1000 uses an amplitude compandered (ACSB) modulation scheme for
use
> > as a repeater for SEA
> > ACSB land mobile radios. The frequency sets it is programmable for are
> > proprietary commercial sets licensed by
> > region. The hardware design cannot be stretched from 222-225 MHz without
> > major engineering work.
> > The ACSB modulation scheme and proprietary nature of all of the
> SEA-designed
> > software preclude the
> > use of the ESP1000 for HAM operation.
> > If you are adventurous about emulation and design, experimentation may
or
> > may not be fruitful for you.
> > The factory offers no support for any purposes other than the designed
> > purpose.
> >
> > Good luck,
> > Doug Hutchins, SEA Service
> >
> >
> >
> >
> >
> > Kenneth P. Cook Jr., W8DZN
> > River View Estates Lot 46
> > Bucyrus, Ohio 44820
> >
> >
> > -----Original Message-----
> > From: Hellewell, Byron [mailto:[email protected]]
> > Sent: Tuesday, July 01, 2003 9:54 AM
> > To: [email protected]
> > Subject: [RadioModifications] SEA ESP1000 repeater mods?
> >
> > Hi
> >   Does anyone have any info on converting SEA ESP1000 repeater to
> > the 222 MHZ amateur band.
> >
> > Also looking for any technical or programming information.
> >
> > Thanks
> > Byron NJ7J