[OZAPRS] Alice Springs & VK8 APRS

Tue Jan 5 19:47:20 EST 2010

Gday all,
I have done this in outback some years ago,
using a SCS DSP-TNC connected to a Yaesu FT100 in SPLIT-operation mode.

So when hiking  my handheld (OT1+) sent a 1200 baud packet on 2m to the 4x4 
vehicle,
it got received by the Yaesu FT100 in FM, decoded by the DSP-TNC (in 
Cross-Mode-Gateway mode)
and resend on 30m band on 10.147,6 in 300baud USB.

Benefits: you only need ONE TRX
             and no need for a computer!
             mobile cross band - cross mode digipeater gets ur positions and 
messages out to the world and internet.
just save this SPLIT-setting in your trx memory channel and use the 
dip-switches of SCS DSP-TNC to toggle mode.

disadvantage: its only one-way

If you need more details, just contact me
oe3mzc at oevsv.at

de Mike
OE3MZC / VK3FPF

----- Original Message ----- 
From: "Norm, VK3XCI" <vk3xci at aanet.com.au>
To: "Australian APRS Users" <ozaprs at aprs.net.au>
Sent: Thursday, December 10, 2009 11:09 PM
Subject: Re: [OZAPRS] Alice Springs & VK8 APRS

> G'day all,
>
> I have some relevant experience here!
>
> In my days as a rural mail contractor, VK2XCI, I fiddled with VHF in the 
> car and
> HF at home due to lack of a reliable internet connection. Equipment was 
> very
> basic. 10W on 2m to a 5/8 mobile whip on the ute, FM828 without a preamp 
> at
> home, 5/8 whip about 30' of the ground. old PIII box running UI-view and 
> AGWPE
> driving an FT-107 on 30M. (The 107 was the weak link as it drifted.)
>
> I regularly got packets thru Ron VK3ECV in Mildura, from Mount Hope in the
> Western Division of NSW when the FT107 drifted thru the net frequency.
>
> Also walked around a bit doing fencing and stuff with an Icom 215. 
> (handbag
> style early 70's 5Watt 2M portable) Elevation and antenna was the key! 
> Stubby
> bad (antenna that is, stubby of beer good!) 1/4 wave whip ok, 5/8wave home 
> brew
> best but a pain to cart around!
>
> Ron VK3ECV has some relevant as well, HF and VHF. He did VHF from a 
> motorbike
> for the Port-to-Port Cycle classic. Surprised he hasn't popped up. You 
> there Ron??
>
> My suggestion is 2M handheld with a full size antenna as high as possible 
> on the
> backpack. Use a little TT3 or OT1+ with a relevant GPS. (Kenwood HT if 
> you've
> got one!!)
>
> 2M to 30M set up in the support vehicle. Key is a sensitive 2M receiver, 
> low QRM
> from the vehicle and plenty of HF power.
>
> Good luck, I shall be watching!!
>
>
>
> 73 de Norm, VK3XCI
> Mildura, Australia
> The Wintersun City
> QF15bt.
>
> Andrew Gilbett wrote:
>> Hi Everyone,
>>
>> Thanks for the input, The closest that I shall be to HF backpacking
>> will be an Yaesu FT817ND. This poses the question, would 5 watts be
>> sufficient on 30m to get in on a nightly basis?
>> I briefly checked a map and it would appear that we would generally
>> only be about 10-20 km from the cars and as there are some mountains
>> around that we walk over.
>> Also what are peoples experiences using APRS via ISS & PACSAT as that
>> is another viable option and I would imagine that I could get away
>> with a handheld, on the good passes... comments?
>> I do intend to have a 30m APRS setup in the support vehicle anyway as
>> we shall be driving across the Simpson Desert on the way back.
>>
>> I am still interested in comments and peoples experiences.
>>
>> Thanks :-)
>> Andrew Gilbett
>> andrew.gilbett at gmail.com
>>
>>
>>
>> 2009/12/10 Terry Neumann <tfneumann at internode.on.net>:
>>> Joseph Burford wrote:
>>>
>>>> The issue here is that neither 30m or 40m are going to be practical
>>>> for someone walking/hiking. Not unless we go back to  WW2 style and do
>>>> back pack radios :-)
>>>>
>>>> 2m handheld at a few watts with a largish whip is probably the best
>>>> you are going to want to take when hiking. As others have said a low
>>>> power setup like this will probably need to be heard by a good local
>>>> digi or temp digi in the support vehicle to be of much use. Obviously
>>>> the issue of not having a local iGate is something else to factor in.
>>>>
>>>> Cheers,
>>>>
>>>> Joseph
>>>>
>>> G'day Joseph,
>>>
>>> It could well that this is exactly what they have in mind but I can't be
>>> sure ....
>>>
>>> HF backpacking is very big in USA - not aware that much is done here in 
>>> VK.
>>>
>>> Have a look at:  http://hfpack.com/
>>>
>>> Nice to 'see' you again,
>>>
>>> 73
>>> Terry
>>> VK5ATN
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