[aprssig] battery portable HF APRS?

Wed Nov 27 01:49:24 EST 2019

   I have been told that I'd do better with the QRP Labs QSX SSB
capable transceiver when it comes out.  As I couldn't develop the
sketch or program the radiuno myself I would use an external TNC unless
it was already in the software.  For now I will look into using what I
have on hand, with my IC703 on 30M to see if I can reach an HF Igate
using 10W.  I would be very interesting in news about a suitable radio,
radio software, or hardware, for this project.

   Thanks,  Ron VE8RT

On Wed, 27 Nov 2019 04:08:18 +0000
Samúel Þór Hjaltalín Guðjónsson <ulfr.thor at ulfr.net> wrote:

> I’ve been playing around with the idea of using uBITx with APRS modification to the raduino that controls it for use on APRS on HF. 
> Haven’t had the time to get it on the project list (yet), but the idea is there. 
> 
> Best regards,
> Samúel Þór Hjaltalín
> samuel at ulfr.net
> T: +354-848-2317
> https://ulfr.net
> 
> > On 27 Nov 2019, at 02:16, Ron VE8RT <VE8RT at yknwt.ca> wrote:
> > 
> > Hi Lynn,
> > 
> >   a few months ago I ran JS8Call on a Raspberry Pi 3, I was very happy
> > with how well it worked.  And I had thought about using it as an
> > alternative to APRS.  I will take a look at the latest version, the
> > earlier version I thought that it would allow beaconing for a set
> > amount of time before going into receive only mode.
> > 
> >   Ron VE8RT
> > 
> > On Mon, 25 Nov 2019 13:59:28 -0500
> > "Lynn W Deffenbaugh (Mr)" <KJ4ERJ at arrl.net> wrote:
> > 
> >> 
> >> JS8Call has support for GRID (up to 12 character) transmissions and 
> >> every suitably configured JS8Call receiver can convert these reports 
> >> into APRS packets to the ARPS-IS.  I haven't seen any "portable" (read: 
> >> micro-controller) encoding code for JS8Call, but I suspect it would be 
> >> just as possible as the WSPR encoder code was.
> >> 
> >> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> >> 
> >> On 11/24/2019 9:53 AM, Ron VE8RT wrote:
> >>> GM Matthew,
> >>> 
> >>>    I have a BITx40 I built, and was considering it, but either I messed
> >>> up and can no longer find them online (haven't tried the auction sites
> >>> though) or they're no longer available new.  As the QRP Labs monoband
> >>> QCX line of very affordable and highly rated CW transceiver kits will
> >>> also do WSPR I would have been very happy to have the (proprietary)
> >>> code include APRS transmit and then add an external board for the
> >>> decode transmitter control (or logic).  It has been suggested, maybe
> >>> I'm too impatient, that I wait for the QSX SSB capable model and use an
> >>> off the shelf TNC for HF.
> >>> 
> >>>      Ron VE8RT
> >>> 
> >>> On Sun, 24 Nov 2019 00:49:13 -0600
> >>> Matthew Chambers <mchambers at mchambersradio.com> wrote:
> >>> 
> >>>> Have you looked at any of the ubitx kits? Those come in multi and mono band
> >>>> versions, and you can turn off the display to save some battery. Also they
> >>>> don't come with a case so you can mount the board in whatever case you want
> >>>> and even mount the TNC board along with the radio.
> >>>> 
> >>>>> On Sun, Nov 24, 2019, 12:22 AM Ron VE8RT <ve8rt at yknwt.ca> wrote:
> >>>>> 
> >>>>>> The FT817 or FT818 has been recommended, and I could see it working out
> >>>>>> OK for some situations.  If the station were a bicycle mobile on the
> >>>>>> annual Yellowknife to Hay River event the proposed FT817, and its
> >>>>>> batteries would take up valuable space and add significant weight. (no
> >>>>>> place to charge batteries, there is litterly nothing but wilderness for
> >>>>>> long stretches of 150 miles or more).  For an event like this I'd
> >>>>>> really like to have an APRS frequency on 60M where NVIS is possible.
> >>>>>> 
> >>>>>> What I was hoping to find was a 5W or higher output transceiver, that
> >>>>>> was lightweight, easier on batteries, and relatively inexpensive. Along
> >>>>>> the lines of the no longer available PSK20 from Small Wonder Labs.  A
> >>>>>> monoband transceiver would do to start with, along with a basic tracker
> >>>>>> interface, just to experiment with.
> >>>>>> 
> >>>>>> Maybe there are no suitable current production radios or kits.
> >>>>>> 
> >>>>>>    Ron VE8RT
> >>>>>> 
> >>>>>> On Sat, 23 Nov 2019 22:27:30 -0500
> >>>>>> "wa4zko ." <wa4zko at gmail.com> wrote:
> >>>>>> 
> >>>>>>> Ron,
> >>>>>>> 
> >>>>>>> More than a few options out there, but I use:
> >>>>>>> 
> >>>>>>> RADIO:  Yaesu FT-817ND/818ND
> >>>>>>> 
> >>>>>>> TNC:  SCS Tracker DSP TNC - flexible (10-20v) voltage requirements,
> >>>>>> draws
> >>>>>>> next to no power (<100 mA), 5 packet modes in one small box well suited
> >>>>>> to
> >>>>>>> portable/mobile setups. It can run as a stand-alone tracker (no
> >>>>>> PC/laptop
> >>>>>>> required) or with a lot of the common APRS software programs.
> >>>>>>> 
> >>>>>>> GPS - Garmin GPS76CSx, a 3-wire "hockey puck" GPS or tap into NMEA out
> >>>>>> on
> >>>>>>> some of my other gear. Many GPS options out there and the latest rev of
> >>>>>> the
> >>>>>>> SCS Tracker TNC's GPS port can even power some of them for you.
> >>>>>>> 
> >>>>>>> POWER: Rig's internal power or an external power/battery pack. I've had
> >>>>>>> great luck with the Bi0enno LiFePo battery packs.
> >>>>>>> 
> >>>>>>> HF ANTENNA: Pick your poison, lots of options for portable HF antennas,
> >>>>>>> some suck slightly less than others LOL. I do okay with just a $20
> >>>>>> hamstick
> >>>>>>> for mobile and a dipole or end-fed halfwave wire when camping/etc.
> >>>>>>> 
> >>>>>>> Have taken the above on the road and into the backcountry as needed.
> >>>>>> This
> >>>>>>> provides me with my choice of:
> >>>>>>> Robust Packet APRS (HF)
> >>>>>>> 300 baud APRS (HF)
> >>>>>>> 1200 baud APRS (2m and 6m)
> >>>>>>> 9600 baud APRS (typically on 70cm) (FT-817/818 do 9600 just FB)
> >>>>>>> 
> >>>>>>> Jerry VE6AB does some similar stuff and written a lot about his portable
> >>>>>>> ops in QST and his blog. Check him out on QRZ.
> >>>>>>> 
> >>>>>>> GL & 73
> >>>>>>> Jeff
> >>>>>>> WA4ZKO
> >>>>>> 
> >>>>>> --
> >>>>>> Ron VE8RT <ve8rt at yknwt.ca>
> >>>>>> 
> >>>>>> _______________________________________________
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> >>>>>> aprssig at lists.tapr.org
> >>>>>> http://lists.tapr.org/mailman/listinfo/aprssig_lists.tapr.org
> >>>>>> 
> >>> 
> >> 
> >> 
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> > 
> > 
> > -- 
> > Ron VE8RT <ve8rt at yknwt.ca>
> > 
> > _______________________________________________
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> 

-- 
Ron VE8RT <ve8rt at yknwt.ca>