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AO-91 (Fox-1B) - Satellite
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AO-91 (Fox-1B)

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description AO-91 (Fox-1B) Overview

AO-91, also known as Fox-1B, is an amateur radio CubeSat launched by AMSAT in November 2017. It carries a U/V FM voice transponder for amateur radio communication and experimentation, and is part of the Fox-1 series of satellites designed to support education in radio technology. AO-91 operates in a low Earth orbit and facilitates communication between amateur radio operators worldwide.

help AO-91 (Fox-1B) FAQ

When was AO-91 (Fox-1B) launched?

AMSAT launched AO-91 in November 2017 as a rideshare payload on a Delta II rocket carrying NOAA's JPSS-1 weather satellite from Vandenberg Air Force Base. It was the second Fox-1 series CubeSat to reach orbit.

Is AO-91 still working for amateur radio?

The satellite has suffered battery problems in recent years and is typically usable only when it is in sunlight and its status is nominal. AMSAT publishes current operating status on its website, so check there before planning a pass.

How do I make a contact through AO-91 with a handheld radio?

AO-91 carries a U/V FM transponder, so a dual-band handheld or mobile rig with a directional antenna can work it on a low pass. You will need to transmit with the required CTCSS tone and tune for Doppler shift on the uplink; AMSAT's site lists the current frequencies and operating notes.

What is the Fox-1 series that AO-91 belongs to?

The Fox-1 satellites are AMSAT North America's 1U CubeSats carrying FM voice transponders for amateur radio use. The series also serves an educational mission, flying student experiments such as radiation-effects payloads while giving hams an easy entry point into satellite operating.

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