[OZAPRS] HF MOBILE beaconing, food for thought.
wavetel at iname.com
Wed Jul 7 23:20:57 EST 2004
Hmm.. I see Richard is sugesting 10-15 minutes and Des is looking for 1.5
to 2 mins .. I said I was running 7 mins in the mobile.. Good to see I am
in the middle ground..
I would have to argue against the 1.5-2 mins Des.. Most days of late in
this last week Ive been seeing 4BBS 4CLM 4DMI when its up with
regularity.. You may not have seen me driving around but Ive copied all
yous guys up there both in the mobile and at home..
I started off this yesterday with the observation in regards to 2HL and
his aprox 30 second beacons..
Its hit and miss at times on HF I agree but 2HL was at 10am getting about
50-70 percent of his beacons onto our VHF net here and into the Igate and
likewise at 5pm when I got home he was getting 100 percent of them in.. It
was actually creating a noticable difference in traffic levels on 2m ..
Hence my comments..
As stated previously the Hop seems to be about 1000 km and as much as
2000km frequently.. That means I see VK3 most of the time VK2 nearly all
the time and VK4 as soon as the suns up.. Yep southern VK8 would be a
good spot for a Gate..
I think we have started to develop the idea that its very hard to get a
posit through (as I know I was) but in reality we have had a severe lack
of Gates that was not realised until recently..
We need to be careful of a mentality where we think we will be able to get
the mobile tracking on HF to be as frequent or acurate as VHF Metro nets..
This will never be the case.. Lets face it if I am in the middle of the
desert a few Kms either way means nothing to most of us.. If we make camp
at night or for a few days then the last known posit is a fair guess at
Its interesting to see that we have not seen a posit from Andrew on Findu
for over 9 Days up there in VK6 as well.. So now I am worried as to his
last known posit being relavant.. I did copy him earlier this week in the
mobile and he had started heading south towards Perth so hes probably near
Broome I guess but that posit never got onto the net.. I would sugest we
are better off on 20m now frankly for this path.. The occasional ZL on 30m
seems to bob up here giving the impression that the path streches out at
times but I guess in VK2/4/3 you would see ZLs more often.. As Ive said
Ive had up to 10 stations on the map in the car with regularity and they
are all east of here..
What we really need to look at with the HF gates is making sure whereever
possible to put them in quiet locations.. Ive had the good fortune this
last week or 2 to park the car in the hills on a job in the middle of a
padock well away from the noises of suburbs etc and the difference in the
map is amazing.. The signals that do decode and the distances are quite
impressive.. We know what its like with voice coms on HF to get a good
quiet locality but how much more so with packet on HF..
Thers my bit..
----- Original Message -----
From: Brian <mailto:bbeamish at bigpond.net.au> Beamish
To: OZAPRS <mailto:ozaprs at marconi.ics.mq.edu.au>
Sent: Wednesday, July 07, 2004 9:27 AM
Subject: [OZAPRS] HF MOBILE beaconing, food for thought.
I am not trying or even intending to stir up a hornets nest so please no
flack just constructive criticism if any.
Des VK4DMI-4 and myself think along similar lines on this.
More information about the Ozaprs