AmateurRadio.com

Southgate ARC News ran a short piece on TAPR and appointing PCB manufacturers the other day. Reading onto this could be catastrophic but I can see that Hermes is getting closer. I’ve been following this for a little while know and bump into Kevin Wheatly, M0KHZ, the project leader every once in a while. I am really looking forward to this innovative piece of kit coming to the open market. Having seen a very early prototype a few years ago I would love to get one of my greasy paws on one of these. A high performance (HF) shack in a very small box! Hold onto your hats for Dayton then!

2012 is rolling along nicely and Linux in the Ham Shack is rolling along with it, bringing you new ways to use your computer with amateur radio, and sometimes just technology for fun (and maybe profit). This time around, the guys break into politics — just slightly — and get a few grievances of their chests. In the middle segment, Richard and Russ discuss terminal emulation, something a radio amateur might need for accessing modems built into rigs or running packet TNCs. Finally, our intrepid co-hosts open up the mail bag and respond to listener feedback. If you would like to contribute feedback, please do so by sending us e-mail at [email protected] or calling in on our voice line at +1-909-547-7469.

73 de The LHS Guys

You’re kiddin’ PE4BAS goes QRO. No, it can’t be. But a picture says more then a 1000 words! It has to be true. I just had the opportunity to buy this RM KL500 amplifier very cheap on the club evening last friday. I thought what the heck, I just like to experiment. This amp is rated 600W (!!) out with 30W SSB in. Well I don’t recommend that at all, as it will get very hot. At first I connected everything to my FT817 and did a 5W input, the amp was not going to TX, was it broken? So I was a little angry about that. I wrote one of the clubmembers to get the call from the amateur that had sold it so I could get in contact with him. Then it strikes me that there was a extra connection made on the back side. The electronic diagrams were delivered with it and from that I understood the internal VOX circuit was bridged. I just had to connect this connection to earth or neutral via PTT to get it on TX. After looking inside it was clear to me the extra BIAS mods found on the internet were already made in this amp. Anyway, just to be shure I connected a old CB radio with 3W instead of my expensive FT817. With the KL500 on the dummy it did already 100W out full power. But it took 30A of current already. I don’t want to test it any further as that was more then enough for me. I guess it does about +200W out with 10w in? Too much for my needs. So I will sell this one after I tidy it a little and make a proper connection for the large current supply. After that I will try to test it once more with 10W input and then sell it. 

So I’ve been to the local radioclub last friday and collected my QSLs from the bureau. They have a special PE4BAS tab in the QSL trunk now, so they were easy to find. 2 QSLs were special to me. The one from ON2PCO as I remember him well. He was using 10W with a FD4 dipole inside the house and was surprised to work me on 80m in the PACC. And the QSL from JW/PA0ZH from Spitsbergen, Svalbard. I didn’t work them with EME but on 20m SSB. Although they were QRV with EME, I think they made a lot of operators very happy. 

Today I listened for HK0NA once again. I guess luck is not with me as I could only hear a very weak sometimes readable signal on 15m. The rest of Europe seems to have very good propagation as he worked one after the other. Same for TO4M who was just readable on 10m, he worked a lot of Europe but after calling for half a hour I just gave up. I tried for a Brazilian station who was RS58 here, but even he didn’t hear me. Time to leave the radio then and do some other things. I hope propagation will be better with the PACC on……9 days to go.

A packet arrived from China this morning containing a 16×2 LCD module which I purchased for the absurd sum of £1.93 including shipping. That wouldn’t cover the postage from a UK supplier. I don’t know how the Chinese do it and make a profit.

I bought the module with the intention of using it to make a user interface for my Parallax Propeller beacon. Having ordered it I was not sure how to interface the LCD to the Propeller so I chickened out and ordered an LCD UI module from Gadget Gangster. This is rather more expensive (though still a reasonable $29.99) but it includes a 4-way + depress button for menu navigation, plus a separate red button. It plugs straight into the Gadget Gangster board.  I reasoned that even with the hardware sorted the software would be enough of a challenge.

I have rather ambitious plans for this beacon. Perhaps over-ambitious. After reading Alex G7KSE’s blog post about his Arduino based MSF 60kHz receiver I’m interested in interfacing one of the inexpensive MSF receiver modules to the Propeller. I could use this to display an accurate clock and also to control the start of WSPR beacons. As I’m a bit of an accurate time nut and have two radio controlled clocks in the shack (and a radio controlled watch) it is really no trouble to press a button to start the beacon at the beginning of an even minute and then keep time from there. But that isn’t the point really, is it? What could be cooler than a shack clock that is also a WSPR beacon?

This microcontroller stuff is new to me and I have a lot to learn about it. One question I have is what do constructors who use Arduino boards or similar things like the Gadget Gangster do when they want to make a finished project? Do you just buy another development board to use for the next project, or are there simpler boards with just the microcontroller and its essential ancillary components which you use for the final version? I guess I’d still want the ability to update the software (firmware?) so there isn’t much of the Propeller Platform board that I wouldn’t be using.

Great success in the 80 Meter Fox hunt tonight, due to the great ears of Dave N1IX and Tom KV2X. The fact that Dave lives in New Hampshire and Tom in New York was to my benefit as these are pretty easy hops for me on 80 Meters.

I went to the ARRL’s Web page today and downloaded the Diamond DXCC (DDXCC) Scorecard, which is an Excel file that you can use to keep track of the entities that you have worked towards the award.  So far in January, I worked 15 entities that count.  So I am 15% of the way there.  Not a terrible start and we have the major DX contests still to come – the ARRL DX Contest coming up in February as a matter of fact.  I don’t know if I will be able to achieve the certificate; but it is a worthwhile and fun goal for the year.

15 Meters did not seem as active this morning as yesterday morning.  I did manage to get Cuba in the log, working CO6WD before heading off to work.  Down the band, there was a huge pileup, spanning many kHz; but for the life of me, I don’t know who everyone was trying to work.  I couldn’t hear the quarry (and I didn’t have the DX Cluster up on screen); but I would assume it was most likely either HK0NA, TN2T or perhaps VP6T.  These seem to be the three “biggies” right now.

The more that I am on the air this year, the more I am coming to realize that “Happiness is listening to a good fist”.  I hope that I fall into that category; but I can sure tell you that there are a lot of folks out there who don’t seem to.  And that’s a shame.

The problem seems to be spacing and “hurrying up”.  And I think I make that mistake myself from time to time, especially if I’m a bit tired and not paying attention to what I am doing.  A long time ago, my Mom gave me a little angel that hung from the rear view mirror in my car that said, “Never drive faster than your Guardian Angel can fly”.  I think we Morse Code enthusiasts should have something along the same lines.  “Never send faster than your fist can send” (or something like that!).  If you get sloppy, or take for granted what you are doing and don’t pay attention to the task at hand, you’re going to sound pretty awful.  And that’s not fun for anybody.

Sending good Morse is an art.  It is a deliberate act that takes concentration and diligence and practice. Spacing is just as important if not more important than anything else.  It’s a good thing to remind ourselves, from time to time.

72 de Larry W2LJ
QRP – When you care to send the very least!