[OZAPRS] Contest SSB

[Phillip]

Hi Ray and all
               Good reply the biggest problem I see is the phone contesters
coming down into what is 
a data section and filling up with DX contest SSB  7030 to 7040.

Oh yes the shift well that may take along time to do ( good luck )

73 Phillip
 
 
-------Original Message-------
 
From: Ray Wells
Date: 29/03/2009 9:55:08 a.m.
To: Australian APRS Users
Cc: zlaprs at yahoogroups.com
Subject: Re: [OZAPRS] Contest SSB
 
Hello Philip and all,
 
Your posting has had me thinking and it raises a few questions.
 
I've been running a 40m BBS on 7035.8 for some time. Daytime BBS traffic
can be quite intense with forwarding to two other BBS's, plus user
activity. Since I use USB I'm wondering if I'm causing any problems due
to proximity to your aprs frequency. My two tones would fall on 7037.4
and 7037.6. I run about 35W to a dipole that is end-on to you guys, and
is mounted high enough that it would be starting to be directional.
Probably of more concern is if the VK guys on aprs are "hearing" me as a
problem, because the antenna favours NNE/SSW, looking at VK4, VK3 and
eastern VK2.
 
I used to operate a bit lower but I received a request from some VK4 to
move because I was clobbering their week signal work into Europe. I
obliged by shifting the crystal as high as it would go.
 
Looking at band plans, 7.030 to 7.040 is for data/packet according to
the WIA plan. I see that ZL is currently the same but there is a
proposal to move to 7.050 to 7.070 (I wish them luck shifting an
established aprs net!).
 
The Region 1 band plan differs from Region 3, hence the clash with the
VK4's.
 
If I am observed to be causing problems I am prepared to purchase
another crystal and move a tad higher  (7038 would place my high tone
200Hz inside the top end of the data/packet segment) and being USB it
would steer well clear of aprs using LSB on 7036. All other station have
frequency agility so a move by me would not present a problem.
 
BTW, my current crystal will not shift that far. It's a commercial spec
crystal operating to commercial spec in a commercial rig.
 
I await comment from Philip and the VK guys using 7.036.
 
Ray vk2tv
 
Phillip wrote:
> Hi,
> I have been listening around of late to find out why many data stations
are
> not being copied, both in NZ and in VK
> I have come to the conclusion that there are not enough HF data stations
in
> the given band segments.
>
> This morning I heard YT8A working contest phone 7036.5 at times 5 / 9 + 10
@
> 7.30 NZT also VK9LA was running hot
> on 7.030.00, F5BZB on 7035.2 with splatter up to 7037.0
>
> While these segments are allocated by gentleman's agreements ( they are
here
> in NZ as recommended usage by NZART )
> if we don't populate these sections they will be over run with SSB phone.
VK
> have similar plans to ours
>
> Either we place more stations in these sections or we increase our beacon
> times to at least show some presents in the segments or increase our TX
> power or do we say stuff it and leave it as it is ..
>
> To date I haven't copied or heard a ZL on 40 mtrs yet I have copied a
couple
> of VKs off and on
>
> 73 Phillip
> ZL2TZE
>
>
>
> APRS HF Net Wednesday 19.30 Hrs NZT 3.650.00 +/- QRM
>
> _______________________________________________
> Ozaprs mailing list
> Ozaprs at aprs.net.au
> http://aprs.net.au/mailman/listinfo/ozaprs
>
>
 
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