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Re: Re: NOVA_TUNE comment. Look before you leap!



I would presume that you could use a USB parallel port adaptor to a printer 
when Nova_Tune was not running.

73, Bob McElligott  HL2/KK4UZ

At 05:42 AM 12/27/2001 +0000, Dave Lamont wrote:
>Hi,
>
>A minor correction.
>
>Both my Uni_Trac and Nova_Tune designs may use
>the "printer port", . HOWEVER  the "printer port" is used purely as a low
>level Input\Output device. i.e. It is addressed and manipulated *directly*
>at machine code level and never uses or requires the standard "print"
>routines or "interrrupts"
>
>You cannor share the *port*  with other equipment
>nor use a USB to parallel port adaption..
>
>de
>
>   Dave Lamont    ZL2AMD
>
>
>----- Original Message -----
>From: "John" <g3bvu@arrl.net>
>To: <nlsa@nlsa.com>
>Cc: <kg8oc@amsat.org>; <r_seiler@junction.net>; <AMSAT-BB@amsat.org>
>Sent: Thursday, December 27, 2001 12:02 AM
>Subject: [amsat-bb] Re: NOVA_TUNE comment. Look before you leap!
>
>
> > W9IP de G3BVU  BT
> >
> > At 15:09 12/26/01 -0500, you wrote:
> > >Friends,
> > >Tim is correct, Nova_Tune + SASI Sat Tracker would require two free
> > >printer ports.  Add-on multi-port cards are about $15, I think.
> > >As for USB, it's beastly complicated (therefore expensive) for the tiny
> > market
> > >that we represent.
> > >
> > >MRO
> > >
> > >
> > >Tim Pickett wrote:
> > >>
> > >> The only problem with the new Nova-Tune is you must have TWO printer
>ports
> > >> to use Nova-Tune, and say SASI-Sat-Tracker, or any other tracker that
> > uses a
> > >> printer port.
> > >> Too bad they didn't make the interface also offer USB to solve that
> > problem.
> > >>
> > >> Tim Pickett, KG8OC
> > >> Michigan AMSAT Area Coordinator
> > >> kg8oc@amsat.org http://www.qsl.net/kg8oc
> > >
> > ***********************************************************
> > Boxing Day 2001
> > Mike,
> >
> > Another often overlooked problem with NOVA_TUNE, until you confront it,
> > can be the limited number of IRQs available in a PC.
> >
> > Traditionally I have often "stolen" the LPT2 IRQ to provide independent
> > IRQs for 3 (or 4) COMM ports. Having a bus (PS-2) mouse helps but if
>you're
> > stuck with a SERIAL mouse (as on older mother boards) and need the extra,
> > independent, IRQs you can be in deep trouble.
> >
> > NOVA_TUNE can be a blessing for those of us with existing antenna tracking
> > systems. But, "Look before you leap".
> >
> > However Uni-Trac 2000, available from Spectrum International, Concord,
> > Mass. USA (see their ad in The AMSAT Journal), provides BOTH antenna
> > steering and radio tuning. Uni-Trac 2000 uses NfW (or WISP) as its driver
> > in a single "hardware box / software package" and uses only one printer
>port.
> >
> > Seasons Greetings,
> > John, G3BVU/W1.
> >
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >
> >
>
>----
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