[OZAPRS] HF APRS

[Ray Wells]

Hi Philip,

Can I gather that there are currently no 20m gateways operating in ZL?

I'm happy to operate on whatever frequency the list settles on and 
14.100 is as good as any for me, and it fits the WIA band plan for packet.

Scott, vk7hse, you're the only other 20m station I'm aware of, unless 
Samantha has her gate running.. Would you like to comment?

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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