[K6BW] Homebrew SSB Transciever for portable Digital Application

Tue, 27 Apr 2004 00:36:37 -0800

Probably not.

Please pardon me, I should have been more careful before posting.

At 11:45 PM 4/25/2004 -0700, you wrote:
>Hi, Warren
>
>Regen sounds like a good idea except for receiver stablity.  PSK-31 requires
>a very stable receiver.  For that matter, so does SSB.  Am not familiar with
>the GR-81, however, perhaps it somehow fits that reqirement.  MT-63 is very
>wide, but PSK-31 is narrower than CW.
>
>Still have transmitter requirements, which requires single sideband.
>
>What do you think?
>
>Bill
>
>
>----- Original Message -----
>From: W B Reese
>To: [email protected]
>Sent: Monday, April 26, 2004 5:54 PM
>Subject: Re: [K6BW] Homebrew SSB Transciever for portable Digital
>Application
>
>
>Dear Bill & the Gang,
>
>Here is a thought.
>
>I have a Heath GR-81 regren receiver.  It's very nice with isolation
>transformer, one stage of audio amplification, and a very nice cabinet with
>included loudspeaker,  I believe you can pick them up for about $25 and it
>might be a very nice starting point for such a project as this.
>
>My GR-81 sits on my desk at work and I listen to KUBA Yuba City almost
>every day, it makes my life more pleasant.
>
>TR WB6TMY
>
>At 07:36 PM 4/25/2004 -0700, you wrote:
> >Thought it might also be useful as a QRP rig for Field Day, here is a
> >circuit for an 80 meter SSB transceiver.  The concept is to marry this
> >unit together with a laptop computer or Palm Pilot to make a low-cost,
> >very portable, battery-operated field station with MT-63 or PSK-31 text
> >transmission capability.   Target cost is $100, though don't know if the
> >entire station can be built for that amount.  Perhaps it could be possible
> >with visits to swap meets, or use of refurbished Palms.
> >
> >I don't think a circuit board is available, but there is a beautiful
> >picture of a prototype built on a Radio Shack circuit board (not sure I
> >recommend that board, though).  Also, if it is to be used for PSK-31 or
> >MT-63, it may be useful, but not necessary, to replace the mechanical
> >switches with reed relays (or other) so that transmit can be software
> >controlled.
> >
> >http://www.qrp.pops.net/Idaho.htm
> >
> >Another idea worth exploring is a DDS transceiver (all digital).  Think
> >experiments/development is underway.  Haven't explored Internet fully to
> >find out, though.  DDS, if available would really be the way to go!
> >
> >Regarding this project.  Might we make this a club project?  Are you
> >interested in getting together and putting this assembly together as a
> >group?  Please send your thoughts to the reflector.  [email protected]
> >
> >73 de Bill, AB6MT
> >[email protected]
> >
> >
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