"They were on voice this last Sunday and Saturday afternoons, Jan 7 & 8. A bunch of us Colorado Hams did hear them as they was passing over the Dakotas. The ISS crew was calling CQ for either of the Dakotas so I guess that's what they need for WAS award. "
Bill McArthur, the American currently on the ISS, was trying to work all 50 states. He got up to 48 last weekend, then got Missouri, and only needs Alaska to make all 50. Then he also needs to receive the QSLs from all 50 states.
One more thing from the previous comment...
"Anyways go to the AMSAT site and you can find their track and see when they are over the US and can try to call them but remember they are simplex."
The first part is correct; the AMSAT web site will provide pass predictions for the ISS and other ham satellites. Put in either your grid or latitude/longitude, select the satellite/ISS and number of passes (10 to 50), and it will display the information. Along with that, you can also get to a map showing the satellite you selected (or ISS) and the next couple of passes. Nice feature!
They are normally *not* operating simplex. If on 2m voice, they work split-frequency.... always listen on 145.800; transmit up to the ISS on 145.200 if in Europe, Africa, or Russia; transmit on 144.490 if in the rest of the world (including North America).
On 14-15 January, they will be on simplex, but on 70cm UHF. Due to the Doppler effect, you'll have to essentially program your radio to work split-frequency or use 2 VFOs with different TX/RX frequencies. Kenneth Ransom N5VHO posted this chart to the AMSAT "SAREX" list of suggested memory channels to use if your radio can tune in 5 kHz steps for this weekend:
Mem. TX - RX
Ch A - 437.540 - 437.560 Acquisition of signal (AOS)
Ch B - 437.545 - 437.555
Ch C - 437.550 - 437.550 Time of closest approach (TCA)
Ch D - 437.555 - 437.545
Ch E - 437.560 - 437.540 Loss of signal (LOS)
At the middle of the pass, you are operating simplex, but for the other parts of the pass split-frequency operation is mandatory. The ISS radio will only have 437.550 on it, and ground stations will need to make all the adjustments for Doppler.
Good luck and 73!
Patrick WD9EWK/VA7EWK - Phoenix AZhttp://www.wd9ewk.net/