I have been able to activate the PSK31 transponder with as little as 20 watts when the satellite was at TCA and about 80 watts when closer to the horizon.

I am using a Zero-Five 10-40GP vertical antenna which is about 27 feet in length.

I learned that the PSK-31 will continue to run even when the SSTV is active.

If the PSK-31 receive audio is kept between about 500 Hz to 1000 Hz and above about 2500 Hz it will not get interfered with from the SSTV transmission. In other words, set the 10 Meter uplink between 29.4785 and 29.4790 or between about 29.4805 and 29.4810 to stay out of the SSTV audio range.

Thanks Brad Schumacher W5SAT

Thanks,

Brad Schumacher

307-631-6436

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