[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Richard Garriott Update Oct 9, 2008

> ISS SSTV Operations Planned for October 12
> from 18:00-21:00 UTC.  This is your opportunity...

Due to hightened interest to the general Ham radio community for
this mission, I again suggest that all Shuttle Audio
Retransmission Faclities consider adding an old TNC and
144.39MHz APRS beacon to their system.  This TNC will alert all
surrounding mobiles (with APRS display radios D7, D700, D710,
VX8R, HAMHUD's, etc) that the retransmission is on the air and
what frequency to tune.

Just load the correct beacon text, set the rate to 1 minute and
connect the TNC's XCD (external carrier detect) to the re-trans
PTT line, then whenever the re-trans is on the air, then a 1
minute announcement beacon will show up on  all surrounding

You may have to invert the sense of the XCD line.  Here is a web
page on this APRS local alert system:

I appologize for repeating myself, but no sense in adding this
system after the Shuttle is back on the ground!  Now's the time!

Here Is how it can look on the front panel of an APRS radio to
mobiles in the area:

| 147.45NAN  |
| SSTV ops   |
| Goddard    |

Where 147.45NAN is the retrans freq for the WA3NAN radio club at
NASA Goddard, for example.

A nice reminder that HAM Radio is again active in SPACE!

Bob, Wb4APR

Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb