ALT ARISS promotional graphic announcing an SSTV event from the International Space Station. The left side shows a star-filled space background with the Expedition 75 mission patch above an image labeled “SSTV Series 33,” featuring the ISS orbiting above Earth. The right side contains event details in white and gold text: “SSTV This Weekend! Expedition 75 / Series 33 ‘Student Education’ event.” Start: Friday, October 2 at 09:00 UTC (5:00 AM ET). Frequency: 437.550 MHz with Doppler shift adjustment. SSTV mode: Robot 36, transmitting 36 seconds on and 2 minutes off. End: Tuesday, October 6 at 15:55 UTC (11:55 AM ET). Participants are invited to submit received SSTV images to the ARISS SSTV gallery for an official event certificate. A note states that APRS will be offline during the SSTV event. The ARISS logo appears in the lower-right corner.

ALT Graphic showing the International Space Station orbiting above Earth on the left and ARISS frequency information on a dark blue panel on the right. Text reads: “ARISS Frequencies. These are the frequencies in use on the International Space Station amateur radios as of June 2026.” The ARISS FM voice repeater transmits on 437.800 MHz and listens on 145.990 MHz with a 67 Hz CTCSS tone. The packet radio for UHF APRS transmits and listens on 437.825 MHz. All STEM educational contacts use 145.800 MHz FM for transmissions from the ISS. The ARISS logo appears at the lower right. A note at the bottom states: “NASA image of the ISS with the Earth in the background.”