[OZAPRS] HFAPRS

[dodd.pc at bigpond.com]

The “old” 30 hf system has been working well for my SA wanderings.

VK2YY-15 seems to be tracking ok with ios but i suppose it depends on phone coverage.

Regards

Peter vk7kpc/5



From: Mark Jessop 
Sent: Wednesday, January 17, 2018 8:50 PM
To: Australian APRS Users 
Subject: Re: [OZAPRS] HFAPRS

I would say that until there are a few receive stations around for the new modem, run FSK if it's something you want to work 'reliably'. 

... but - 'future proof' your system by using hardware compatible with Glen's modem.
Basically, if you're set up to run direwolf with some kind of radio interface, Glen's modem should drop in at a later date...

73
Mark VK5QI

On Wed, Jan 17, 2018 at 8:08 PM, Glen English VK1XX <glenlist at pacificmedia.com.au> wrote:

  Hi RObert

  all works... just install pains due to the high amount of dependencies.

  what sort of linux  platforms do you have ?

  Debian derivative is required, for now.

  I could supply a running PC VM image... 



  On 17/01/2018 8:30 PM, Robert wrote:

    So How are we going with this new HF protocol, need soon , or will have to use the old FSK system.

    Please help.

    Robert
    -----Original Message-----
    From: OZAPRS [mailto:ozaprs-bounces at aprs.net.au] On Behalf Of Glen English VK1XX
    Sent: Wednesday, 3 January 2018 8:48 PM
    To: ozaprs at aprs.net.au
    Subject: [OZAPRS] HFAPRS

    update

    been doing more work on getting the code and system platform portable.

    reading my own notes on things that have to be set like real time permissions.

    good news is I have the 64 bit version also working on the Odroid C2, which means it will also work on the latest RPi.. Took a few naughty things to be fixed for AARCH64

    CPU utilization is 40% on the C2 (4 x A53 @ 1,5G ) , same as XU4 (4 x
    cortexA15 @ 1.4G + unused 4 x A7 ) which is surprising and good for power consumption, required grunt etc- for full 1500 Hz width  of search window. Peak demod power consumption of about 2.5W.

    -glen





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