[OZAPRS] Desert trekking

[Gordon Taylor]

Thanks for the push Ian, I am well aware of theTT3 settings and thought I
had it all set up correctly.  I changed a setting last weekend and now it
beacons at the correct interval when stationary.  What setting was that you
may well ask.

I had the low speed value set at 0 in the smart beaconing settings.
Changing this to 2 and the tracker beacons every 900 seconds when stationary
which is correct.

I wonder if there is an issue with the algorithm or some other reason not to
use 0 for a slow speed setting.  I see from the manual the algorithm has the
following line;

IF (speed <slow_speed)
	beacon_rate = slow_rate

With a slow speed value of 0 it is not possible to get below this.  Maybe
this is why

Regards

Gordon  VK4VP


-----Original Message-----
From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
Behalf Of Ian Bennett
Sent: Wednesday, 3 September 2014 21:41
To: Australian APRS Users
Subject: Re: [OZAPRS] Desert trekking

Hi Gordon,
	I'm replying to you directly as I have some things to say which are
vendor specific.
	Have a look at the "OpenTracker" from Argent Systems. I was using
them up until I decided to give the TT series a go but to be honest, I'm
going back to the OpenTrackers; especially now there is a OT3-mini that does
digipeating.
	My HF rig still has a OT buried inside.
	If nothing else, read the OT manuals; it will give you a better
understanding of the nerd knobs in the TT stuff. Byon's doco (and support!!)
is terrible.
	At a guess, I'd say your slow rate beaconing is not set correctly
(assuming you are using smart beaconing). I use 2 min beacons when above
90Km/hr and 10 mins when under 5 Km/hr. I also have a PICAXE controller that
keeps the radios running for 30 mins after the car is switched off. This
ensures at least two beacons are sent before the radios (VHF and HF) are
powered off.
	I also run the same SSID for both HF and VHF. Being a ex-military,
track correlation is more important to me than how the posit made it into
the network. Most of the people who track me only care about where I am;
those that have the technical knowledge to care about "means" will look at
the path.

Ian
VK1IAN


On 03/09/14 21:15, Gordon Taylor wrote:
> The settings for HF APRS that I use are a maximum rate of 1 beacon/5 
> minutes when travelling over 70 kmh.
> 
> For some reason when stopped the TT3 does not send any beacons.  It 
> has been said before that HF APRS is all about knowing where someone 
> is in a region, not about which corner they have just turned.
> 
> However if the frequency is not being overloaded it's better to use it 
> than loose it, when/if it becomes a problem we can provide guidance on 
> what may be a better beaconing rate.
> 
> Regards
> 
> Gordon  VK4VP
> 
> -----Original Message-----
> From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] 
> On Behalf Of Ian Bennett
> Sent: Wednesday, 3 September 2014 08:57
> To: Phil Shields; Australian APRS Users
> Subject: Re: [OZAPRS] Desert trekking
> 
> Anyone else think 3 minute beacons whilst stationary is a bit too often??
> 
> Ian
> VK1IAN
> 
> On 02/09/14 17:27, Phil Shields wrote:
>> Interesting watching the progress of vk2ol-15 and vk2dog-15 in the 
>> outback
> on HF.
>> http://aprs.fi/#!mt=hybrid&z=11&call=&others=1&timerange=3600&tail=36
>> 00
>>
>>
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