AmateurRadio.com

Richard is back and everything is right with the world--except Russ. Plans are in the works for setting up at the Dayton Hamvention. Many thanks to all of our listeners who donated to the cause. Our next donation goal, is $150 to get a noise gate for Richard. We know at least a couple listeners who should be happy about this, and we suspect there may be a few others out there. Of course, we're committed to improving the quality of the program whenever and wherever possible.

This episode is a little heavy on the radio side of things. However, don't be deterred. Richard gives us a lot of great information about satellite technology, concepts such as Doppler shift, transponders, antenna polarization, the science of orbits and much more which will appeal to your inner geek whether you're into ham radio, computers or just science and technology in general. Have a great week, and we look forward to seeing everyone in the chat for the next live recording on Tuesday, March 2nd.

Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Hot from the K3UK Sked page. “Breaking news from ARRL. They concur that ROS is a spread spectrum mode and as such is not allowed by the FCC on bands below 222 MHz.”

I had just been giving ROS another try with my K3 and 40W this time, and managed to complete contacts on 20m with Alabama and Washington State. Neither of these are locations I would expect to work under current conditions using another mode. As soon as the announcement was posted on the site it all went quiet.

My sympathies to my fellow digimode enthusiasts in the USA. It has always struck me as ironic that hams in the land of the free have to operate under more rigid controls than those of us in “socialist” Europe.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

Attempts to use the newly developed ROS weak signal mode are resulting in more chaos and frustration this morning as an increasing number of people pile on to the same frequencies. And attempts to decide frequencies to use with the mode seem to indicate total ignorance of other band users and modes. The latest list of recommended frequencies includes:

7.040 – which is going to interfere with the now long-established WSPR weak signal mode
10.140 – which will also interfere with WSPR’s established frequency on that band
14.100.9 – which does not avoid the long established 24/7 packet network which has already complained about interference by this mode, and is also within the range reserved for beacons.

There are a total of three frequencies suggested for 30m, in ignorance of the fact that 30m is supposed to be used only for narrow band modes.

Someone responded to my earlier comment that a body like the IARU should decide which modes can work where, by saying that the IARU does not recommend frequencies for specific modes as that would interfere with experimentation. However I still think they should. When left to individual amateurs you simply get a fight between one group of people who don’t have a clue and another group, users of existing modes, who have strong views about where they should NOT go. Without some overseeing arbitrator this will just end up as a mode war.

I think it is arguable that there just isn’t room for a 2.2KHz wide weak signal mode on the HF bands at all. But if true, who is going to make that decision?

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

On February 23rd 2007, amateur radio in the U.S. was liberated from the tyranny of a minority of radio amateurs. They said amateur radio would be destroyed. The foundations of amateur radio were being dismantled, eliminating all that was good and wholesome, ruining decades of innovation and service. Hiram would be turning over in his grave. Cats would be sleeping with dogs. Rupaul would be sleeping with women. The bands would be silent as a long cherished traditional would be outlawed. The CBers would be dancing in the streets and invading our bands, polluting and pillaging our precious frequencies. Old men would have to talk about something other than the early dinner specials at Dennys. It was a grim and apocalyptic picture they painted in those days leading up to the great event.
Anthony Good, K3NG, is a regular contributor to AmateurRadio.com and writes from Pennsylvania, USA. Contact him at [email protected].

Single Operator All Band.

• J88DR (G3TBK) | 3423 Qs | 261 Mults | 34hrs13mins | 2,677,860 Points [Chiltern DX Club].
• LU5FF | 2115 Qs | 233 Mults | 29hrs | 1,477,686 Points [LU Contest Group].
• P40LE (K2LE) | 1267 Qs | 224 Mults | 15hrs | 851,428 Points [OBONY].

n = 21 scores submitted in this category.

Multi-Single.

• C6AWL | 4199 Qs | 309 Mults | 48hrs | 3,892,473 Points.
• 5W0OU | 2339 Qs | 250 Mults | 48hrs | 1,754,250 Points [WVDXC].

n = 2 scores submitted in this category.

A thank you to each international low power operator who populated North American logs this weekend. This was a stoked event especially when 100-watt stations were logged inside shackadelic. How about 10 meters? One can accomplish the RadioSport impossible within this spectrum space.

Congratulations Dave Cree, G3TBK who operated J88DR to a 3830 Top Score and for providing a new DXCC counter as well.

73 from the shackadelic on the beach.

Scot Morrison, KA3DRR, is a regular contributor to AmateurRadio.com and writes from California, USA.

US | VE Single Operator All Band.

• N4YDU | 1942 Qs | 330 Mults | 41hrs | 1,922,580 Points [PVRC].
• N9CK | 1768 Qs | 335 Mults | 34hrs | 1,772,820 [SMC].
• VE9DX | 1580 Qs | 317 Mults | 1,502,580 Points.

n = 97 scores submitted in this category.

US | VE Multi-Single.

• N7DS (@NE7D) | 466 Qs | 164 Mults | 25hrs38mins | 228,780 Points [WVDXC].

n = 1 scored submitted in this category.

Cycle 24 provided an activity stimulus package this weekend surprising some and pleasing many. It’s not the peak for sure however the long sunspot recession is finally over. Event numbers suggest phenomenal effort and stellar returns within all categories.

Nathan Moreschi, N4YDU leads the low power pack before log adjudication and he is one to watch as an emergent RadioSport athlete. His station configuration is definitely low power Box potential. Congratulations Nathan on a job well done while leading the Potomac Valley Radio Club, to yet, another banner week.

Low power multi-single remains as a category waiting for a few innovators. I would venture to say it is under capitalized with lots of great opportunity for the future of RadioSport.

Believe in your signal!

Scot Morrison, KA3DRR, is a regular contributor to AmateurRadio.com and writes from California, USA.

Late this afternoon I noticed that the ROS website had been updated with a new frequency suggestion for 20m 1 baud operation of 14.105, so I decided to have one more try.

For a while I seemed to have the frequency to myself. However I posted that I was calling there on the K3UK digital sked page. Shortly after, WB2YDS posted that he copied my CQ. I didn’t copy anything from him, but I called again and the second time I got his report, though not perfect copy as the meter in the ROS program showed he was 30db down in the noise.

I sent a report, which I know via the sked page he received, but unfortunately a few seconds after he started KB1PVH started calling CQ and the program started decoding his CQ call instead. With two stations on the frequency it was hopeless, and soon after that Olga called me for dinner and that was that.

Normally an almost-QSO wouldn’t rate a mention, except that I was using 5W from the FT-817 to a dipole, and WB2YDS was also running 5W to a long wire. I don’t think I have ever worked across the Atlantic QRP to QRP before, and indeed I still haven’t, but I nearly did, which shows what the ROS 1 baud mode is capable of if you are lucky enough to have a clear frequency for the duration of the contact.

Unfortunately the software has a number of issues that need to be addressed before it can be considered suitable for general use, one of which is the ability to lock on to the replies to you and ignore anyone else who comes up on the frequency.

Another problem is that ROS is still a mode without a home, and at 2.2KHz wide it needs quite a big home and no-one seems to want to make it welcome. There have already been complaints that by settling on 14.101MHz it is disrupting a long established packet network, and while I’m typing this someone seems to be jamming the 40m frequency 7.053MHz with some sort of digital idle signal.

As I said in an earlier post, the issues involved in releasing something like this to the ham populace at large haven’t been thought through. Perhaps there needs to be an overseeing body like the IARU that decrees what modes can be used and where, so there can be no arguments. It’s a pity that the use of a mode with such promise is being thwarted by so many difficulties, but practical reality often stops you doing what you want to do and ham radio is not immune to this.

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].