[OZAPRS] PCSAT alive and well

[Andrew Rich]

So I went to a hill and tried it for one pass.

Here is what I found, which is not what I thought !

*** Sent my position via PCSAT from the car - far enough

VK4TEC-9>RW32U4,RELAY,WIDE <UI R>:
`Q\?l#R>/]"6'}
VK4TEC-9>RW32U4,PCSAT-1*,WIDE <UI R>:
`Q\?l#R>/]"6'}

*** Digi'ed PCSAT back to home - far enough

PCSAT-1>BEACON,SGATE <UI>:
T#673,017,030,051,088,214,00111111,0100,1
PCSAT-1>BEACON,VK4TEC-9* <UI>:
T#673,017,030,051,088,214,00111111,0100,1

*** Sent my position via PCSAT from the car - far enough

VK4TEC-9>RW32U4,RELAY,WIDE <UI R>:
`Q\?l#R>/]"6'}
VK4TEC-9>RW32U4,PCSAT-1*,WIDE <UI R>:
`Q\?l#R>/]"6'}

*** Home heard it, but the car did not digi it !

PCSAT-1>BEACON,SGATE <UI>:
>041404z Cleared 68 hr timer, WB4APR

*** Sent my position via PCSAT from the car - far enough

VK4TEC-9>RW32U4,RELAY,WIDE <UI R>:
`Q\?l#R>/]"6'}
VK4TEC-9>RW32U4,PCSAT-1*,WIDE <UI R>:
`Q\?l#R>/]"6'}

On this occasion, there was no benefit from being up the hill.



-----------------------------------------
Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at tech-software.net <mailto:vk4tec at tech-software.net> 
web: http://www.tech-software.net
Brisbane AUSTRALIA 



-----Original Message-----
From: Robert Bruninga [mailto:bruninga at usna.edu]
Sent: Friday, 5 January 2007 10:50 AM
To: vk4tec at tech-software.net; 'VK / ZL APRS Users'
Subject: RE: [OZAPRS] PCSAT alive and well


> So what benefit would be gained from placing a digi on 
> 145.827 MHz and set the alias to SGATE ?

None, it would QRM the uplink for every pacekt heard.

> Could try driving to a hill first, with the house on 145.825 
> and the car as a digi.

I really don't like any terrestrial digipeating via SGATE,
because 
1) There is too much potential for  human error to jam the
uplink
2) Packets that get digipeated on the ground do not show
PCSAT-1* in them and so those packets do not get picked up by
FINDU.

It just messes everythign up.  Any mobile should be able to hear
PCSAT-1 direct, even better than a home station due to less coax
loss, so I prefer people just listen to the satellite if they
want to hear it.

Bob, WB4APR

> -----------------------------------------
> Andrew Rich
> Amateur radio callsign VK4TEC
> email: vk4tec at tech-software.net
<mailto:vk4tec at tech-software.net>
> web: http://www.tech-software.net
> Brisbane AUSTRALIA
> 
> 
> 
> -----Original Message-----
> From: Robert Bruninga [mailto:bruninga at usna.edu]
> Sent: Friday, 5 January 2007 12:36 AM
> To: vk4tec at tech-software.net; 'VK / ZL APRS Users'
> Subject: RE: [OZAPRS] PCSAT alive and well
> 
> 
> > Subject: Re: [OZAPRS] PCSAT alive and well
> > What sort of antenna u running ?
> > Bob tells me RAFT and ANDE require beams ?
> 
> Yes, if you want to hear down to the horizon.  But a whip will
> hear a few packets a day at the center of the two best passes
of
> the day.  On an oerhead pass, the satellites are 6 to 10 dB
> closer.  Hence, a whip will do nicely.  But the satellites are
> only "overhead" like 10% of the total times they are in view.
> 
> Hence, use beams if you want longer pass times.
> 
> Use a whip for an unattended SATgate (which combines it's few
> packets with a few packets from other such whip ground
stations
> for good accumulation by FINDU)...  That's why we can use more
> satgates especially if they are widely separated and in very
> remote locations like Islands and other places besides the
USA,
> Canada, Europe and the east coast of Australia and NZ.
> Bob, WB4APR
> 
> Bob
> >
> > Cheers
> >
> > -----------------------------------------
> > Andrew Rich
> > Amateur radio callsign VK4TEC
> > email: vk4tec at tech-software.net
> <mailto:vk4tec at tech-software.net>
> > web: http://www.tech-software.net
> > Brisbane AUSTRALIA
> >
> >
> >
> > -----Original Message-----
> > From: Scott & Clare Evans [mailto:clareandscott at bigpond.com]
> > Sent: Thursday, 4 January 2007 7:10 PM
> > To: ozaprs at aprs.net.au
> > Subject: Re: [OZAPRS] PCSAT alive and well
> >
> >
> > I'm Rx only here in southern VK7 (SGATE)
> >
> > Hearing NO-44, RAFT & COMAND-1 so far...
> >
> > 73 de VK7HSE Scott Evans
> >
> > _______________________________________________
> > Ozaprs mailing list
> > Ozaprs at aprs.net.au
> > http://aprs.net.au/mailman/listinfo/ozaprs
> >
> >
> > _______________________________________________
> > Ozaprs mailing list
> > Ozaprs at aprs.net.au
> > http://aprs.net.au/mailman/listinfo/ozaprs
> >
> 
> 
> 
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