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<div class="moz-cite-prefix">Hi Matthew,<br>
<br>
That is the bandplan for ITU Region 3 (our region) and as you say
it has narrowband modes from 7030 to 7040 unlike the WIA bandplan
that has CW within this segment. It would be worth clarifying this
with the WIA TAC (Technical Advisory Committee). I expect they'll
say it is for harmonisation with IARU <a
href="http://www.iaru-r1.org/index.php/documents/Documents/HF/IARU-Region-1-HF-Bandplan--2014/">Region
1</a> and <a
href="http://www.iaru-r2.org/documents/explorer/files/Plan%20de%20bandas%20%7C%20Band-plan/R2%20Band%20Plan%202013.pdf">Region
2</a> that have CW up to 7040 then narrowband digital modes from
7040 to 7050 then wideband digital modes (and SSB) from 7050 to
7060.<br>
<br>
As for increasing awareness of the frequency change, promotion on
this mailing list, WIA broadcasts as well as the outlets you
mention would go a long way towards saturation coverage. Advising
users of the 7040-7050 segment about the change in mode will be a
step towards seeing it freed for digital modes. I know of one
daily net that has already moved from 7045 to a frequency in the
SSB segment. There are more - it just takes time.<br>
<br>
Considering our new bandplan, are there other 40m APRS users
around the world that we could harmonise with?<br>
<br>
Cheers,<br>
Gerard - VK2IO<br>
<br>
On 16/12/2015 11:29 PM, Matthew Cook wrote:<br>
</div>
<blockquote
cite="mid:CAE+2d_0+Ehp9tiQT5FsxojRqKWm9hfBjHLvZia9_LBp48g3yNg@mail.gmail.com"
type="cite">
<div dir="ltr">In reading all three docs it appears that the
latest WIA 40m band plan has followed the ITU Narrow Band (NB)
DX recommendation starting at 7.040, which still has NB modes
listed down to 7.030. I wonder why, this seems half baked at
first glance?
<div><br>
</div>
<div>The 40m APRS frequency has been 7.036kHz (group C tones)
for as long as I can remember.</div>
<div><br>
</div>
<div>Perhaps some clarification from the WIA can be sought
through the TAC's as to when/why was this changed. I know my
VK5 TAC well and am happy to discuss. I'm sure there will be
further changes to the ITU band plans as of the recent meeting
of the minds. For the time being it seems sensible to sit
tight, ask a few questions and see what happens. The band
plans are fluid as was recently demonstrated with the 2m and
70cm bandplans having been straightened out and previous
decisions reversed.</div>
<div><br>
</div>
<div>If the frequency needs to change, then this will need to
include a national awareness campaign, so information in AR,
vklogger, faceborg etc in an attempt to get the new frequency
out there. Otherwise those in the know will move, but those
that haven't heard will simply think it's closed down... which
would be sad. There are a number of rag chewers in the
7.040-7.050 region using SSB already, so moving and camping in
there will lead to a few cross words.</div>
<div><br>
</div>
<div>Just my 0.022c worth inc GST and since I've got a vested
interest in helping said Ham in the Riverland get Larry's gate
going again on 40m and I hate reprogramming 8525/8528 Codans
with a passion !</div>
<div><br>
</div>
<div>73</div>
<div><br>
</div>
<div>Matthew</div>
<div>VK5ZM</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 16 December 2015 at 02:20, Gerard
Hill <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:vk2io@amsat.org" target="_blank">vk2io@amsat.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Interesting history on the origins of 7036 LSB for
APRS. I tend to quote dial frequencies for the
"standard" 1600/1800 Hz tones. The dial frequencies for
the six other tone pairs in common use are available
here: <a moz-do-not-send="true"
href="http://aprs.net.au/hf/hf-aprs-frequencies"
target="_blank">http://aprs.net.au/hf/hf-aprs-frequencies</a><br>
<br>
When it comes to looking for a spare slot in the band
its the centre frequency that is of interest. This is
1700 Hz less than the dial frequency. Looking at the
group archives, there was a lot of discussion in Oct
2009 about moving away from 7036 to avoid QRM. We never
did move :) Now we'll have to.<br>
<br>
The current <a moz-do-not-send="true"
href="http://www.nzart.org.nz/info/technical/hf-band-usage/"
target="_blank">ZL bandplan</a> has not changed since
2013. The segments in 40m are the same as the old VK
bandplan. Its probably due for a review to fall in line
with the latest IARU Region 3 bandplan: <a
moz-do-not-send="true"
href="http://iaru-r3.org/?dl_id=1" target="_blank"><a class="moz-txt-link-freetext" href="http://iaru-r3.org/?dl_id=1">http://iaru-r3.org/?dl_id=1</a></a><br>
In VK we should follow the VK bandplan (as released in
Sep 2015). Its annoying to have to change frequency, but
its going to happen so we might as well get established
as soon as we can when there is more choice of
frequencies. Liz VK2XSE, I'm in the same boat and will
have to reprogram radios - we all will. Now to work out
what the frequency should be...<br>
<br>
Cheers,<br>
Gerard - VK2IO<span class=""><br>
<br>
On 14/12/2015 9:19 PM, Scott Evans wrote:<br>
</span></div>
<span class="">
<blockquote type="cite">The History of HF APRS on 40m
stems from our friends in ZL. That was the frequency
that suited best for their local coverage and so I
just setup there. Now I'm not up to speed with the ZL
band plan (or if there is one) but I do recall a
problem with the use of digital modes higher up the
band. Personally I'd prefer to stay on the frequency
I'm on purely for the fact that it's a known frequency
for use in VK/ZL <br>
<br>
back in the archives of this mailing list you will
find a bit of chatter around 2007/2008 for
reestablishing either a 40m or 20m network as an
alternate for VK standard license class as they don't
have permission to operate on WARC bands. After quite
a bit of testing between the two bands it was settled
that 40m was the better of the two at that time. <br>
<br>
just one thing to remember, depending on the tone pair
of your HF TNC/Tracker most use 1600/1800Hz but some
older gear (like the Pakratt PK-232) uses 2110/2310Hz
this affects your dial frequency. The reference to
7.036 LSB is for 1600/1800Hz tones so your dial
frequency is 7.036+/- and if you are using 2110/2310Hz
like me, the dial frequency is 7.036510 LSB
(2110/2310Hz) <br>
<br>
Now I'm not going to confuse this any further by
quoting center frequencies like is done with pactor!
:D <br>
</blockquote>
<br>
</span></div>
<br>
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href="http://lists.aprs.net.au/mailman/listinfo/ozaprs"
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<br>
</blockquote>
</div>
<br>
</div>
</blockquote>
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