HI Dave Thank you very much for clarifying which one of the two reload procedures will be attempted on ISS Soon.
The Serial port connector on the front of the radio is the easiest load to use. It allows you to quickly upload channel settings.
The Internal load is used for loading the more complex configurations.
Lets hope that Charles Simonyi gets some time to try the reload, so we can put one issue behind us.
SSTV Testing:
During the SSTV testing last summer we ran into a few unexpected problems. The first problem was we did not have a set of written procedures to instruct the crew which buttons to push on the radio to accept the SSTV Audio over the DIN connector.
The Second problem was, SpaceCam SSTV was never tested with a D700 loaded with ISS-Flight software.
The SSTV software SpaceCam1, had been tested on 4 different operation systems, Dozens of computers, Dozens of transceivers, including a Stock Terrestrial version of the D700. All configurations with good results. However it had never been tested on a D700 that was using the Special ISS-Flight version of the operating system.
A problem that was quickly discovered in Flight, was that when SSTV audio was fed into the DIN connector on the D700, it was directed to the wrong down link frequency. The problem was caused by the unique way the D700 software was configured. This special D700 is always running packet and both Bands at the same time. The ISS crew had to experiment with different voice channels and button configurations until they found one that worked. In the process a few channel configurations may have changed.
In the future we hope to approve a tested procure that supports SSTV.
WF1F Marex SpaceCam1
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