[OZAPRS] APRS and the space station

[David Hopkins]

Hi Andrew,
Looks like it is a hit and miss business.

I have only just returned to the satellite business after a laps of about 
12 years.

Even the tracking gear requires rethinking as the old system requires dos 
based computer and the hardware side requires an ISA bus.

I have the tracking programs running on both the laptop and the PDA so 
knowing when the station is overhead is not a problem.

When the D700 arrived I connected it to the Yagis and had no problem 
getting a couple of packets through the repeater without Doppler
correction.

I would expect at least one packet to make it from the car but who knows.

I will keep trying whenever the bird is active.

David


t 04:27 PM 4/15/2006, you wrote:
>David,
>
>My $0.02 worth
>
>Doppler is a big issue. I ended up getting a linux box to tune the d700
via
>the serial port.
>
>This gave me some 12 packets or so as opposed to say 3 or 4 from a non -
>tuned set up.
>
>Bit hard from a car tho ;-)
>
>I am not sure about the schedule so to speak, I used to watch the aprs
>stream to see if the "bird" was active or not.
>
>I think from memory I used any normal relay and "sgate" on then end.
>
>I have been looking for a reason to re-initiate my sat ground station
here
>with doppler tracking.
>
>Do you have a laptop or PDA you can predict the passes ?
>
>I hit the ISS once just driving around on 145.800 MHz (down) 145.990 MHz
>(up)
>
>Sound like a reasonable venture !
>
>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: David Hopkins [mailto:davhop at bigpond.net.au]
>Sent: Saturday, 15 April 2006 1:58 PM
>To: ozaprs at aprs.net.au
>Subject: [OZAPRS] APRS and the space station
>
>
>Gentlemen,
>In a week or so time I will be driving from Brisbane to Sydney via the
New
>England Highway for up to a fortnights holiday in and around Sydney.
>
>I have installed a Kenwood TM-D700 in the car. As I will loose repeaters
>upon leaving Brisbane and I don't think I will see another one until just
>north of Sydney I was going to try and use the repeater on the Space
>Station.
>
>Is there a published schedule as to when the RS0ISS-3 repeater is
>operational?
>I haven't heard anything from it yesterday (Friday) or today.
>
>What is the preferred "packet path" to use.
>
>On Wednesday and Thursday I attempted to use ARISS,SGATE,WIDE. I could
hear
>the Space station at good signal strength but it could not hear me.
>
>I have set the radio up to try ARISS,SGATE,WIDE but haven't heard the
>station since.
>
>Any advice would be appreciated.
>
>Thanks
>
>David
>
>
>David Hopkins (VK4ZF)
>Queensland
>AUSTRALIA
>davhop at bigpond.net.au
>Skype :-   davhop
>S 27, 22.294  E153, 11.008
>
>
>
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David Hopkins (VK4ZF)
Queensland
AUSTRALIA
davhop at bigpond.net.au
Skype :-   davhop
S 27, 22.294  E153, 11.008



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