ISS
Being a little of a freak about anything space, I enjoy working the ISS with voice or packet.  Contacting the ISS is not as difficult as it may seem.  With my humble setup I have worked stations via the packet digipeter as well as NA1SS via voice (from my mobile in the truck!).

Satellite Tracking

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KF7ETX - HT ISS Contact (5W)


ISS Frequencies

Amateur Radio Frequencies (Note: Only one mode active at a time)

FM L/v VOICE Repeater (Worldwide)

  • Downlink 145.800
  • Uplink 1269.650

AX.25 1200 Bd AFSK Packet Radio (Worldwide)

  • Downlink 145.825
  • Uplink 145.825

FM SSTV downlink (Worldwide)

  • Downlink 145.800

UHF Simplex (rarely used)

  • Downlink 437.550
  • Uplink 437.550

FM VOICE for ITU Region 1: Europe-Middle East-Africa-North Asia

  • Downlink 145.800
  • Uplink 145.200

FM VOICE for ITU Region 2&3: North and South America-Caribbean-Greenland-Australia-South Asia

  • Downlink 145.800
  • Uplink 144.490

FM U/v VOICE Repeater (Worldwide)

  • Downlink 145.800
  • Uplink 437.800

FM V/u with PL VOICE Repeater (Worldwide)

  • Downlink 437.800
  • Uplink 145.990 with 67.0 PL
(The above list is courtesy of ISS Fan Club)

ISS News






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