Been there done that seven years ago...it is a liiittle more than the three
items listed that need to be done........
For the NUC RX idea, I have been thinking about doing a rx for that purpose,
however, my concern is, will all that work have pay dirt...
If some one can show the 902 rx front end is truly usable in high rf
environment, I will work with them to...git-er-done... I currently have two 900
spectras in a sales catalog bag with wide duplexer and controller to operate on
any one of the eighty channels 902-903 and 927-928. All that's needed is
twelve volts and antenna.
.
Bill
w4oo
jawjabill--
bellsouth-
net
.
--- In Repeater-Builder@yahoogroups.com, James Adkins <adkins.ja...@...> wrote:
>
> I've done quite a bit with the Spectras; hacked the software, re-tuned the
> VCO after modifying, re-capped them, etc. I think they're great radios.
> Just thought since it's difficult / impossible to get maxtrac filters, and
> knowing how good the Spectra receivers are, they'd be a nice alternative to
> go with a Motorola Nuc as a receiver.
>
> Not sure that there is COR present on the 15-pin accessory pin, but seems
> like when I looked at that before there wasn't. I'm sure that can be found
> somewhere inside the rig, though.
>
> Can you e-mail me off the list with what you have?
>
> Thanks,
>
> James
>
> On Sat, Nov 21, 2009 at 9:35 PM, John Gleichweit
> <smokeyb...@...>wrote:
>
> >
> >
> > I'll second the motion for a write-up. If you have high-rez pictures,
> > that'll help even more. I have 2 900MHz A5 Spectras that I want to tweak
> > into the 902 band.
> >
> > --
> > John "Smokey Behr" Gleichweit FF1/EMT, CCNA, MCSE
> > IPN-CAL023 N6FOG UP Fresno Sub MP183.5 ECV1852
> > List Owner x10, Moderator x9 CalEMA 51-507
> > http://smokeybehr.blogspot.com
> > http://www.myspace.com/smokeybehr
> >
> > ----- Original Message ----
> > > From: Mark <n9...@... <n9wys%40ameritech.net>>
> > > To: Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com>
> > > Sent: Sat, November 21, 2009 6:34:32 PM
> > > Subject: RE: [Repeater-Builder] Re: Motorola Spectra 900's
> > >
> > > Mel,
> > >
> > > Reference the write-up, PLEASE DO!!! There are others here who would be
> > > grateful for the knowledge (myself included).
> > >
> > > 73,
> > > Mark - N9WYS
> >
> > >
> > > -----Original Message-----
> > > From:
> > > Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com>On
> > > Behalf Of wa6jbd
> > >
> > > I've managed to get 900 Spectras to receive in the 902 range. There are
> > > three steps, and it's not necessarily a 'beginner project'.
> > >
> > > 1. Hack bandlimits to allow programming
> > >
> > > 2. Modify VCO
> > >
> > > 3. Retune front end filter.
> > >
> > > It's possible to meet or exceed rated performance after modification, but
> > > takes patience, a steady hand, and a network analyzer or spectrum
> > analyzer
> > > and tracking generator.
> > >
> > > I'm toying with the idea of putting together an article on how to do it,
> > > complete with pictures it there is sufficient interest. In the meantime,
> > I'd
> > > be happy to supply a description of what's involved to anyone who'd like
> > to
> > > give it a try.
> > >
> > > Mel - WA6JBD
> > >
> > >
> > > --- In
> > > Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com>,
> > James Adkins
> > > wrote:
> > > >
> > > > Looking for anyone that's actually used a Motorola Spectra to RX on
> > > 902.xxx
> > > > MHz for a repeater receiver
> > > > Has anyone on the list tried this? Looking for something besides the
> > > > standard maxtrac option.
> > > > --
> > > > James Adkins, KB0NHX
> > > > Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN)
> > > >
> > > > Southern Missouri Frequency Coordinator - Missouri Repeater Council
> > > > www.nixahams.net
> > > >
> > > > The Nixa Amateur Radio Club - "There is no charge for awesomeness!"
> > (Well,
> > > > only $1.00 per month)
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
> >
> >
>
>
>
> --
> James Adkins, KB0NHX
> Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN)
>
> Southern Missouri Frequency Coordinator - Missouri Repeater Council
> www.nixahams.net
>
> The Nixa Amateur Radio Club - "There is no charge for awesomeness!" (Well,
> only $1.00 per month)
>
