[OZAPRS] dw FIXBITS

Josh vk2hff at vk2hff.ampr.org
Wed Nov 15 19:40:33 AEDT 2017


Here's a few examples of 'FIXBITS 2' not quite getting it right:

0,1501324152,2017-07-29T10:29:12Z,VK2BOS-9,WIBE2,40(18/10),2,4,VK2BOS-9,/>,,,,,,,,,Tiny
Track,,,

0,1501300552,2017-07-29T03:55:52Z,VK2LJ-6,VK2LJ-6,27(9/8),2,`,VK2LJ-6,\▒,-33.889361,150.859181,13.0,135.0,69.0,,,,McTrackr,In
Service,"Seq=462, A1=487, A2=991",|3▒

0,1501176273,2017-07-27T17:24:33Z,ZK2RMO-1,VS2RTM-1,28(11/8),2,!,ZK2RMO-1,1#,-30.680500,,,,,,,,Open
Track,,," 12.3V ▒3C Manilla W1 Digipeater, Mt Bora,
http://www.flymanYl▒a.com"

- Josh VK2HFF

On 15/11/2017 7:27 PM, Josh wrote:
> On 15/11/2017 6:55 PM, Glen English VK1XX wrote:
>> also set FIXBITS=2 (was =1), improves data
>> demodulator  another dB....
> 
> I'd be VERY cautious with that - you may end up digipeating garbage far
> and wide.
> For a W2 digi I would think you would want to disable FIXBITS
> completely, and only digipeat frames that you can reliably hear.
> 
> I found FIXBITS 1 to be pretty trustworthy, but a large percentage of
> the packets requiring the extra 'bits fixed' were badly corrupted,
> direwolf is pretty much guessing by that point ;)
> 
> - Josh VK2HFF
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