Hi Ed, KL7UW
I agree !
73" de
i8CVS Domenico
----- Original Message ----- From: "Edward R. Cole" [email protected] To: [email protected] Sent: Friday, July 01, 2011 10:54 PM 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):
- 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
- 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 EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-? DUBUS Magazine USA Rep [email protected] ======================================
Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb