[amsat-bb] Re: A Proposal for ARISS

jmfranke jmfranke at cox.net
Fri Jul 1 14:08:22 PDT 2011

Good thoughts! Echoes and elaborates on my email.


From: "Edward R. Cole" <kl7uw at acsalaska.net>
Sent: Friday, July 01, 2011 4:54 PM
To: <amsat-bb at amsat.org>
Subject: [amsat-bb]  A Proposal for ARISS

> After posting some thoughts a few days ago (RE: ISS, what the heck
> happened?), I have given the idea more consideration.
> Proposal (ARISS on ISS):
> 1)  Install a 100-KHz transponder unit on ISS, with usual digital
> beacon/engineering
> 2)  It would run mode-UV
> 3)  Installed internally in the ISS
> 4)  Replace most of the current ISS ham radio equipment
> 5)  Could be considered an upgrade/improvement to the existing ham radio 
> on ISS
> 6)  Use ISS power and existing ham radio antenna infrastructure (no
> solar panels)(no thermal requirements for space environ)(perhaps less
> radiation hardening)
> 7)  Use batteries for stand-alone operation (recharged from ISS power)
> 8)  Control commanded from ground (no intervention required by astronauts)
> 9)  Local access for use of astronaut-hams
> 10)  Provide emergency back-up comms for ISS (perhaps with a separate
> FM channel)
> 11)  (perhaps) Use of existing ham-radio handheld on ISS on low-power
> to dedicated receiver which would activate astronaut repeater channel.
> 12)  This FM channel could be used as FM ham repeater when not in use
> by astronauts  (means world-wide monitoring for the astronauts as
> well as normal Leo FM activity)
> 13)  Modular design for future upgrades and/or repair (easy
> installation by astronauts-plug*n*play)
> 14)  Segmented pass-band to allow packet/APRS digipeating
> 15)  Transmitters able to be shut down for eva and other critical
> missions either locally on ISS or from ground.
> 16)  Perhaps a special Rx/Tx on ISS eva channel for cross-band repeat
> in event of loss of atmosphere emergency (help to sell the concept to
> NASA as a comms back-up).
> 17)  No need for orientation (spin or de-spin), rad hardening,
> thermal structures (air-cooled), no propulsion, no launch requirements.
> 18)  Easily maintained by supply from ground (repairs or upgrades).
> 19)  Long-Life
> Re-direct of either Fox or P3E efforts?  (no launch requirement-rides
> as cargo to ISS)
> 73, Ed - KL7UW, WD2XSH/45
> ======================================
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
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