ARISS News
Release
No. 19-13
Dave Jordan, AA4KN
ARISS PR
aa4kn@amsat.org
July 31, 2019
ARISS Next Generation Radio System Completes Critical
Flight Certification Tests
The Interoperable Radio System
(IORS), ARISS' next generation radio system successfully completed a battery of
stressful tests required as part of the final certification of the hardware for
launch to and operation on the International Space
Station.
During the week of July 8, the IORS, consisting of the
JVC Kenwood D-710GA Radio and the AMSAT developed Multi-Voltage Power Supply,
successfully completed a series of Electro-magnetic Interference
(EMI)/Electro-Magnetic Compatibility (EMC) tests to ensure that the ARISS
hardware will not interfere with the ISS systems or other payloads. Testing
continued into the following week, where the IORS successfully passed power
quality and acoustics testing. These tests verified that the ARISS IORS will not
introduce harmful signals back into the ISS power system and is quiet enough to
meet ISS acoustic requirements. ARISS Hardware Team members Lou McFadin, W5DID
and Kerry Banke, N6IZW were at the NASA Johnson Space Center supporting this two
week battery of tests in concert with the NASA test and certification team.
Kerry Banke states, "Since the IORS is being qualified to
operate on 120VDC, 28VDC and Russian 28VDC as well as transmitting on VHF or
UHF, a lot of test combinations were required to cover all cases. Each input
voltage type was also tested at low, medium and high line voltage. Moreover,
additional permutations were required to test the IORS under no load, medium
load and full load at each voltage level. So it should not be surprising why the
tests took two weeks to complete."
Successful completion of
these tests represents a key milestone in preparing the IORS for launch. ARISS
can now begin final assembly of the flight safety certification in preparation
for launch. ARISS is working towards launch ready status by the end of the
year.
About ARISS:
Amateur Radio on
the International Space Station (ARISS) is a cooperative venture of
international amateur radio societies and the space agencies that support the
International Space Station (ISS). In the United States, sponsors are the Radio
Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL),
the ISS National Lab and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts via
amateur radio between crew members aboard the ISS and students in classrooms or
public forms. Before and during these radio contacts, students, educators,
parents, and communities learn about space, space technologies, and amateur
radio. For more information, see www.ariss.org.
Media
Contact:
Dave Jordan, AA4KN
ARISS PR
aa4kn@amsat.org
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