Do Satellite Doppler Frequencies Change Every Pass? | Ham Sat Tracker Blog
Ham radio satellite Doppler shift explained — why you can
Read more →Tutorials, tips, and insights on satellite operations
Ham radio satellite Doppler shift explained — why you can
Read more →Everything ham radio operators need to know about Maidenhead grid squares — what they are, how to find yours, and why they matter for satellite operations and contests.
Read more →Technician class amateur radio operators can legally work all amateur satellites. Here
Read more →A practical guide to ham radio satellite equipment. What radio, antenna, and accessories you need to start working FM and SSB satellites with modest gear.
Read more →Complete list of amateur radio satellite frequencies for 2026. Uplink, downlink, CTCSS tones and operating notes for SO-50, AO-91, ISS, FO-29, RS-44, AO-7, and more.
Read more →Complete glossary of amateur radio satellite terms. Definitions for AOS, TCA, LOS, TLE, Doppler shift, azimuth, elevation, footprint, transponder, and more.
Read more →The best amateur radio satellites to start with in 2026. Which FM and SSB satellites are active, what equipment you need, and how to make your first contact.
Read more →Learn how to interpret the polar sky view plot in Ham Sat Tracker. Understand azimuth, elevation, pass direction, and how to use the diagram to plan your antenna pointing.
Read more →How to work amateur radio satellites with QRP power levels. Antenna choices, technique tips, and why low power is often an advantage in satellite operations.
Read more →Comparing SO-50 and AO-91 for new satellite operators. Learn the differences in access requirements, reliability, and operating technique to pick the right first bird.
Read more →Everything you need to know about working the International Space Station on amateur radio. Frequencies, timing, repeater status, and tips for your first ISS contact.
Read more →A practical guide to Doppler shift for ham radio satellite operators. Learn what it is, why it matters, and how to correct for it on FM and SSB satellites.
Read more →Complete guide for beginners getting started with amateur radio satellite operations. Learn about equipment, frequencies, operating techniques, and making your first satellite contact.
Read more →Your feedback has been sent. 73!