[OZAPRS] Re: Ozaprs Digest, Vol 20, Issue 2

[Tony Hunt]

Geoff.. I can help with 40m (Adelaide) and perhaps Michael 5MW at Roxby 
could be dobbed in as well as he has just got HF running .. I will leave 
that to him as I dont know what antennas he has and availabliity. Its a good 
oportunity to experiment with mobiles on 40m again. From experience what you 
need are HF Gates at close range around 1000km and less to try and get the 
packets before they are too mangled.

One question
What sort of Paths will we be seeing from the Bikes once they have gated out 
to HF ??

Just give us a reminder again around that time and I will switch to 40m. 
Currently playing on 30m with APRSD.

Tony Hunt VK5AH



> Date: Sat, 1 Aug 2009 17:29:46 +1000
> From: "Geoff" <geoff at gatwards.org>
> Subject: [OZAPRS] BMARC Expedition to Poeppels Corner
> To: "'Australian APRS Users'" <ozaprs at aprs.net.au>
> Message-ID: <030701ca1279$d9ffe750$8dffb5f0$@org>
> Content-Type: text/plain; charset="us-ascii"
>
> Folks,
>
>
>
> The planned Expedition by several Blue Mountains ARC members to Poeppels
> Corner is coming up fast - the group leave Sydney on 29 August for a 15 
> day
> trip out to the corner of VK4, VK5 and VK8.
>
>
>
> There will be a convoy of 4x4's and motorbikes, a few of which will be
> carrying APRS trackers.  Whilst some of the 4x4's will have HF APRS
> capability, most of the trackers will be 2m VHF units - especially the
> bikes.
>
>
>
> For this trip, a special non-standard setup has been put together,
> consisting of a "Reverse HF Gate come IGate".
>
> This system is a laptop running Linux, with both digi_ned and javAPRSSrvr
> configured, to gate the 2m posits to the Internet when within mobile 3G 
> Data
> coverage, or to HF when beyond the range of the mobile phone network.  The
> Reverse HF Gate will only accept a special digi alias, so it will not
> inadvertently gate everyone to HF if the convoy travels through an 
> existing
> VHF coverage area.
>
>
>
> We will be configuring the trackers with HF parameters, so the beacon
> intervals will be at 5-10 minutes, however to identify these "special"
> stations, an SSID of -13 will be used.  (The standard HF mobiles will 
> still
> use -15 and regular paths).
>
>
>
> The group are planning to use 40m for this trip, to allow all trackers to
> operate under their own callsigns.
>
> Could I please have a show of hands as to who would be able to operate 
> their
> HF Gates on 40m for the period 29/8 to 12/9 to help support this trip ?
>
>
>
> More information about the trip can be found on the club's website -
> http://www.bmarc.org
>
>
>
> Thanks,
>
> Geoff  VK2XJG
>

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