APRS, UHF, VHF ISS Packet System is Back on VHF Posted on April 14, 2017August 28, 2017 by K7KEZ 14 Apr On Friday, April 14 VHF packet service from the ISS was restored. The Amateur Radio on the International Space Station packet digipeater system is again operating on VHF! Just tune to the previous standard frequency of: 145.825 MHz K7KEZ Kenwood TH-D72 Battery Level Indicator WxBot – An APRS Weather Forecast Auto Responder