KI5YCQ

Satellite and Space Operations

Corpus christi, texas

  • Aerial view of the International Space Station (ISS) against a black background, showcasing its solar panels and various modules.

    ISS 79° pass 13:42:07 CST 18:42:07 UTC

    I decided to take one radio out into the field for today’s pass, my ICOM ID-52A. It is a dual band radio and has the option to record. Usually I have been using two radios, one for transmit and one for receive. I had the squelch turned off for both the TX and RX and I think that maybe this was the reason I was not able to hear the pass clearly. On the receiving end the pass sounded terrible, like I was not able to get the polarization correct – I had this issue throughout the entire pass.

    When I returned home I listened to the recording and to my surprise the entire pass was very clear.

    I am excited to report that I was able to make a contact, my only contact and it was Michael – KO4PDI. He is located in Florida. Michael is very well known on YouTube for recording his satellite passes live for others to watch. So today was my lucky day.

    Below is a segment of the recorded audio from today.

    You can also watch Michael’s YouTube video if you follow this link: https://www.youtube.com/watch?v=km7o4rTrqrU

    I announce my call sign and grid location 16:19 into the video.

    +
  • Due to rain this morning I was not able to catch this satellite.

    This would have been my first pass of the RS95S. Below are the frequencies for this bird. This is an FM satellite.

    Uplink: 145.920 MHz (67Hz CTCSS)

    Downlink: 436.950 MHz

    +
  • Aerial view of the International Space Station against a black background, showcasing solar panels and various modules.

    Decent pass on the ISS this afternoon. I thought I made 2 contacts however John – KE9FF is operating under an expired license, and the K15IP station does not exist.

    +
  • A small satellite model with solar panels on top and an antenna, designed for space communication.

    Great pass this morning for SO-50. Made a few new contacts before the storm rolled in, Steve – W15D and Ralph – KA0JMK. It sounded like Ralph – KA0JMK did not have his receive frequency correct.

    Sorry Jason, W3ALT for getting your name wrong, it was good to hear you though, QSL my friend.

    +
  • Overview of the International Space Station in orbit with solar panels extended against a black background.

    Great pass today on the ISS, a lot of static though. I did not begin to receive any audio until the ISS was approaching max elevation. However I did receive one contact with James- WD5GRW from Allen, Texas – thanks James.

    +
  • Aerial view of the International Space Station against a black background, showcasing its solar panels and various modules.

    Below is a recording of the full pass taken on 2016-05-21.

    I was able to make a contact with Douglas – AA0DW, his QTH is in Loveland, Colorado. You can hear the contact at 2 minutes, 42 seconds into the recording.

    +
  • A small cube satellite equipped with solar panels and an antenna.

    SO-50 is a widely used amateur radio satellite that has FM transponders that use a 67 Hz PL tone for access. It operates as a repeater and was designed and built as part of a Saudi Arabian amateur radio program.

    Uplink FM (67 Hz CTCSS) 145.850 MHz

    Downlink FM 436.765 MHz

    Below is my first recording of SO-50, it is a very short recording. I was able to make contact with Juan Gil Aguilar from Mexico – XE1YDK.

    +
  • Aerial view of the International Space Station against a black background.

    Below is the recording from yesterday’s pass of the ISS, 2026-5-18. AOS was at 16:52 CST. The duration of the pass was 6m 38s.

    I was able to make 3 contacts, Jason – W3ALT, Paul – W5CIP and Joe – WD5RIG. Jason, W3ALT has confirmed. As of today I am still waiting for the final 2 to confirm.

    +
  • Aerial view of the International Space Station with solar panels extended against the black backdrop of space.

    This is my first contact via the ISS, it was made yesterday 2026-5-17.

    At 14 seconds into the recording you will hear me respond to Andy, KE7RTB, finalizing my first contact.

    +
  • This recording was from yesterday, 2026-5-15.

    Yesterday’s pass was at 17:39, it was a good pass, just over 30 degrees elevation. I decided to try and make a contact this time but was not able to. You will here me say my call sign and grid square location at 19 seconds into the recording.

    +