Is VHF going to be permanently replaced by UHF for amateur packet?

Since the power plug outlet that was used by the Kenwood D700 has apparently been trumped by the air purifier, is there a possiblilty that packet will be permanently shifted from the original 145.825 VHF to UHF? That might disrupt a lot of amateurs' ability to work the ISS digipeater, including my own.

K3AS – Fri, 2012 – 06 – 08 22:51


Packet on ISS has been operating on VHF (145.825) and UHF (437.550) for almost a year now. The intent was to have both bands available. The current issue with the radio intended for VHF is due to the unforeseen power issues with ATV. Once this ATV vehicle has left the ISS then amateur radio operations will return to the standard default used in the past.

There have been no permanent changes in amateur radio operations policy on the ISS but instead have only been reactionary responses to an unexpected event.

Submitted by N5VHO on Mon, 2012-06-11 10:25.

437.550 MHz packet 9600 or 1200 baud?

Hi Kenneth and all,

Can anyone confirm for me please what packet baud rate is in use now on 437.550 MHz, is it 9600 or 1200 baud? Thanks

Philip G0ISW

Submitted by g0isw on Tue, 2012-06-12 12:18.

Re: 437.550 MHz packet 9600 or 1200 baud?

Hello Philip,


73's Cor PD0RKC

Submitted by pd0rkc on Tue, 2012-06-12 12:39.

1200 baud


Thank you very much :-)

73 de Philip G0ISW

Submitted by g0isw on Tue, 2012-06-12 16:02.

The last status report said

The last status report said that 2m packet from the Service Module would be off until September.

73 Trevor M5AKA

Submitted by M5AKA on Sun, 2012-06-10 08:33.

The whole Amateur Radio

The whole Amateur Radio aspect of the International Space Station should have been located in a centralized location on the Station. Dedicated to it!!. I understand that adding to the ISS over the years could have made it impossible to engineer via NASA, AMSAT, RS or whoever is in-charge of Amateur Radio in space of what and where the components are to be allowed. Maybe the next Space Station (past my life time) will do this in a way it does not interrupt operations (enabling/disabling) the system during critical times. Maybe we have advanced enough by then that interference via VHF/UHF or where to plug in or not plug in will not be an issue.

Just hope that none of them forget that Amateur Radio was and are the pioneers of communication up the spectrum. Looking forward to the future for those that come after me.

Enjoy what we have in that us Amateur Radio Operators on the ground does have an interest in Space and Communications by being a very small part of a what we have been able to do thus far. 73's.

Submitted by W4ZZA on Sun, 2012-06-10 23:17.

Habitat module

The going in plan for ISS was to have all the amateur radio gear in one location. That location was the habitat module. Unfortunately, that particular module as cut to save money and that killed the central location idea.

A future manned space station will likely encounter similar issues with having to power the systems down to avoid potential safety threats to human space flight operations. The advantage to unmanned satellites is that they have minimal risks associated with their operations once deployed and activated. Those unmanned satellites rarely have to deal with any new interactions afterwards.

Submitted by N5VHO on Mon, 2012-06-11 17:02.

Focusing my attention elsewhere.

'Going to turn my 2meter radio, amp, antenna, and computers away from ISS communications and interests.' Done that, was there, got to move on. I imagine the purifier maneuver was in the works for some time before, and no one was able (or cares) to problem solve to keep 2m working. It must have been a daunting problem to solve. So much for a good thing. Anyhow, tracking was taking up my valuable computer, iphone, and ipad app space so this can be freed up for some other purpose. I am not planning to re-invest in or re-invent my station to seek another band for the ISS. As my local club president, I will stop talking about getting easily involved in amateur radio in space, which was being well received as a fantastic attraction for the newer folks to the hobby. I know that ISS digipeater access as an amateur is a 'privelege' but still, the loss may not be entirely understood or well-received by some. To reiterate - 'out of sight, out of mind' may become a two-way street. As for me, I was working on my 'WAS via ISS', which is obviously tabled for the time being. Will see what September brings, if anything -

Submitted by K3AS on Mon, 2012-06-11 06:10.