[OZAPRS] HF APRS

[Ray Wells]

Philip,

My 20m rig is beaconing every 15 minutes on 14096.600 USB (1600/1800Hz 
tones)

Ray vk2tv

Phillip wrote:
> Hi Ray,
>
>                    I'm willing to give it ago I have TS 140 and a G5RV East
> / West and another Nth / Sth  using AGWPRO.
>
>
>
> So some testing would be appreciated I am around after 5pm NZT I have a RX
> on 14,100.5 LSB now  
>
>
>
> have a look at the bottom of this page it may help
>
>
>
> http://zlhams.wikidot.com/aprsinfrastructure:infrastructure
>
>
>
> 73 Phillip
>
>  
>
> APRS HF Net Wednesday 19.30 Hrs NZT  3.650.00 +/- QRM
>
> -------Original Message-------
>
>  
>
> From: Ray Wells
>
> Date: 30/03/2009 11:50:29 a.m.
>
> To: Australian APRS Users
>
> Subject: Re: [OZAPRS] HF APRS
>
>  
>
> In the apparent absence of a reference station, I have my 20m Igate on
>
> 14105.1 (according to my TS430) and I use 1600/1800Hz tones.
>
>  
>
> Would somebody like to confirm if this is the preferred frequency, and
>
> if it isn't, what should I use. I chose the frequency based on the
>
> one-time existence of a vk6 on that frequency. It has been previously
>
> been suggested that we should consider the more-international 20m
>
> frequency (which I can't find right now, but it's not too far away from
>
> where I currently sit). The use of an international frequency would
>
> overcome one of David's gripes about 20m - not enough stations.
>
>  
>
> BTW, Robert, my dipole is at 45' and looks favourably towards ZL.
>
>  
>
> Let's debate the 20m frequency issue and come up with a standard.
>
>  
>
> Ray vk2tv
>
>  
>
> Robert Thirkettle wrote:
>
>   
>> Hi David if we have a ZL 20M HF Gateway that hole is filled in. In ZL we
>>     
>
>   
>> have a propagation issue if 40M is unworkable that is what we have at
>>     
>
>   
>> present then no ZL HF solution will work that's why we then only have a
>>     
>
>   
>> via VK option.
>>     
>
>   
>
>   
>> I used mobile 40M APRS in 2001 for a trip around the lower south Island
>>     
>
>   
>> it worked well for paths over 200Km but that time was much closer to the
>>     
>
>   
>> top of the sun spot cycle than now yesterday Gareth was struggling to
>>     
>
>   
>> make a 600Km path work.
>>     
>
>   
>
>   
>> If VK and ZL want to make use of each others HF gateways then we need to
>>     
>
>   
>> use a frequency that works 7MHz only works at dawn and dusk 10MHz also
>>     
>
>   
>> only works for 1 or 2 more hours than 7MHz but 14MHz will work for most
>>     
>
>   
>> of the daylight hours as well as giving a east coast VK to west coast VK
>>     
>
>   
>> path.
>>     
>
>   
>
>   
>> I also do agree that a mix of 40M 30M and 20M gate ways will give the
>>     
>
>   
>> greatest coverage.
>>     
>
>   
>
>   
>> I am working tonight to get my gateway up and going again.
>>     
>
>   
>
>   
>> Regards Rob Thirkettle ZL3RX
>>     
>
>   
>> Dept  Physics & Astronomy
>>     
>
>   
>> University of Canterbury
>>     
>
>   
>> Private Bag 4800,
>>     
>
>   
>> Christchurch 8020,
>>     
>
>   
>> New Zealand
>>     
>
>   
>> Tel: +64 3 364 2510
>>     
>
>   
>> Fax: +64 3 364 2469
>>     
>
>   
>> mailto:rob.thirkettle at canterbury.ac.nz
>>     
>
>   
>
>   
>
>   
>> -----Original Message-----
>>     
>
>   
>> From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
>>     
>
>   
>> Behalf Of David and Justine Olsen
>>     
>
>   
>> Sent: Sunday, 29 March 2009 12:27 p.m.
>>     
>
>   
>> To: Australian APRS Users
>>     
>
>   
>> Subject: [OZAPRS] Frequencies for Peoppel Corner and Central Australia
>>     
>
>   
>
>   
>> Ray is correct. My push or 40m (not just for me) is because standard
>>     
>
>   
>> calls can't use 30m. 30m is ideal for the desert trips, but
>>     
>
>   
>> unfortunately I and other standard calls can't use it.
>>     
>
>   
>
>   
>> What I am suggesting is that my observations and predictions show 20m
>>     
>
>   
>> though better for data, does not provide coverage. The skip (dead)
>>     
>
>   
>> zone covers most of Australia at most times of day from Central
>>     
>
>   
>> Australia.
>>     
>
>   
>
>   
>> Therefore what I am advocating is more igates on 40m because it
>>     
>
>   
>> provides a logical second choice to 30m, 20m being my third choice
>>     
>
>   
>> for the reasons metioned above.
>>     
>
>   
>
>   
>> More igates on more frequencies though is the ideal in my view.
>>     
>
>   
>
>   
>> David
>>     
>
>   
>> VK4MDX
>>     
>
>   
>
>   
>
>   
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>>     
>
>   
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>>     
>
>   
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>>     
>
>   
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>>     
>
>   
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>
>   
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>   
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>
>   
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>   
>
>   
>
>  
>
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