[OZAPRS] Ultimate3 HF APRS tracker

[Phil Shields]

hi Hans, I run HF APRS in the vehicle with a multi band screwdriver antenna mostly on 30 Mx. 10.147.6 MHZ. It works fine and a small black box would be great freeing up the HF rig.
Phil VK2CPR



On Monday, 20 October 2014, 21:41, "vk2ycj at bravo.net.au" <vk2ycj at bravo.net.au> wrote:
 


Hans,

Great to hear from you and that's fantastic news about HF APRS getting
closer with the Ultimate 3.  I have spoken to you on email about this in
the past and I have an Ultimate 3 nearly ready to go on HF but without the
multi-band antenna set up yet.

And having the Ultimate 3 running on 2m is a great opportunity too -
especially for WSPR.  Will it do WSPR on 6m as well ?

As you will see there is some good activity with WSPR on both 6m and 2m in
Australia.  The WSPR map 24 hour view shows that ...

http://wsprnet.org/drupal/wsprnet/map


Dom VK2HJ might be a very good tester of the device as he is a very long
term user of APRS on 2m and travels thousands of Km every week in his car.
  I'll pass on a message to Dom now via Facebook.



All the best,   Jamie - VK2YCJ




> Hi all,
>
> I am designer of the Ultimate3 (a.k.a. U3), an inexpensive QRSS/WSPR
> transmitter kit (see http://www.hanssummers.com/ultimate3 ) available from
> QRP Labs http://www.qrp-labs.com . The kit has a transmitter and GPS
> interface, and can send various QRSS modes, Hell, and WSPR. In the
> forthcoming v3.06 firmware I've also added Opera and Pi4 modes.
>
> The kit can do FSK and has precise frequency control using DDS. 300 baud
> HF
> packet with 200 Hz spacing would be no problem. It has GPS an the
> transmitter. So it seems theoretically, I should be able to add APRS
> tracker capability without too much trouble.
>
> I understand HF APRS is popular in Australia because the large distances
> involved mean gaps in 2m coverage. So I thought this would be a good place
> to ask. Two questions, if I may:
>
> Question 1: despite a lot of reading on APRS I haven't figured out what
> simple message would need to be sent for a tracker. It should presumably
> be
> some text where the callsign and latitude/longitude get inserted. Can
> anyone advise? What simple message needs to be sent? And any other things
> to consider?
>
> Question 2: once I have a beta firmware version available, is there anyone
> here who has a U3, and AVR programming facilities, and could actually beta
> test APRS in the field (which I cannot easily manage). Even if not... If
> someone is seriously able to test and work with me on this then I can
> consider donating a free U3 kit for the project.
>
> Another comment - I'm working on getting the U3 operational on 2m soon as
> well. See http://www.hanssummers.com/ocxosynth which will soon be
> available
> as a kit too, and hopefully will get the U3 up on 2m.
>
> Thanks in advance, and apologies for the bandwidth
>
> 73 Hans G0UPL
> http://www.hanssummers.com
> http://www.qrp-labs.com
> _______________________________________________
> OZAPRS mailing list
> OZAPRS at aprs.net.au
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>

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