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Archive for Radio Software

Windows Shack 160

Windows Ham Shack

Posted by Jim Wilson 
· Saturday, March 2nd, 2013 
· 1 Comment

I’ve completed the update of my ham shack, installing a Windows computer and getting the software and connections generally into place. As noted previously, I’ve installed a desktop computer running Windows XP using N1MM and MMTTY for contesting and just started using DX Lab Suite for day to day operation. The updates this weekend were the new deskpad along with a row of LED lights just above the K3 & P3. I also moved the power supply and routed the cables a bit differently.

Still getting the setup for DX Lab Suite into shape for my operating preferences. There is just so much more going on than with the Mac logging packages. So many more options to select and configurations to sort through. That means it’s very flexible but quite challenging as well.

Tried out the CW capabilities of DX Lab Suite using the Winkeyer by working TX5K on Clipperton Island. That was a new country for me. It took me a little while to sort out the CW macros and then to actually get the QSO recorded in the logbook. Still, a nice one to start with. Now I’m trying to work them using RTTY.

I’ve also done a little bit of work setting up the PSK side of things. I’m not nearly as excited about using that mode. Perhaps its the contest side that I’m most interested in. Next up is the NA RTTY Spring this coming weekend.

Thanks for tuning in. I hope to see you in the log!

1 Comment
Categories : Radio Software
Tags : RTTY, Software
N1MM copy

N1MM

Posted by Jim Wilson 
· Thursday, February 21st, 2013 
· No Comments

This weekend I started my conversion project, moving a desktop Windows computer into my ham shack and getting everything set up. The first item was getting the biggest monitor that could fit to place on the shelf above my rig. Then I needed a wireless card, and after a few tries getting the right card and finding the right PCI slot, that was working. Finally, I added a wireless keyboard and mouse. With the desktop computer costing $10, the rest of the expenditures dwarfed the computer investment. Even so, I feel that I put in place just the right system and did so very cost effectively.

Then I connected the computer to the Elecraft K3 via an old fashioned serial port. Tested that all out with the Elecraft K3 Utility and found it working quite well. Same thing with the Elecraft P3 utility and the K1EL Winkeyer software. Next up was installing an RTTY software package and a logging program.

I had been reading a great deal on some of the RTTY websites and email streams about Writelog and MMTTY. However, just in the last week there was a great deal of discussion around using N1MM with MMTTY and the newest demodulator 2Tone. So I decided to start with MMTTY and get that working with my sound card, etc. I used a great instructional article by Don, AA5AU, that really helped me set up MMTTY. There were a few things that I needed to sort out after a fair bit of investigation, but I got it working and working well.

Then it was on the N1MM, which I decided to go with since it is free and the most widely used contest software. We’ll also be using it at the 2013 Jamboree for K2BSA. I had a reasonable bit of tweaking and set up before I got it up and running. I found the documentation to be very helpful and even watched some of the instructional videos. I finally got it all set up with both main receiver and sub-receiver working simultaneously. This was a big breakthrough as I want to work SO2V during contests. Plus, I made a contact from the sub-receiver right out of the box, so to speak.

I also spent some time getting the Winkeyer and CW set up. Had a few bobbles getting the cables connected correctly. But now all is well. Not sure when I’ll get back to CW contests because I’m having lots of fun with RTTY.

Right now I’m refining a few things in the RTTY set up and trying to get ready for the NAQP RTTY contest this weekend. That will be the real test. Again, yet another ham radio adventure.

No Comments
Categories : Radio Software, RTTY
Tags : RTTY, Software
F1500_new_RAV

FLEX-1500 SDR

Posted by Jim Wilson 
· Saturday, January 19th, 2013 
· 2 Comments

If you’ve been keeping up with my posts, you know that last week I won a FlexRadio Systems FLEX-1500 in a drawing at the Lone Star DX Association quarterly meeting. That post is titled Lucky Guy and, indeed, I am a very fortunate guy to win this gem.

After I got the rig home, I started looking over the website determining how best to get it set up. First issue, it operates in Windows only. That’s not the best situation in an all Apple household. Second issue, while Boot Camp on a Mac is supported, vitual machines are not. But after contacting Greg Jurens, K5GJ, of FlexRadio Systems, who was the speaker at the meeting, he noted that he and many others operate with a virtual machine and that the FLEX-1500 was well suited for this approach since it uses a USB connection rather than the Firewire connection for their other rigs.

So today I connected everything to the very compact box and fired it up. For a computer, I used a MacBook Pro running Parallels as the virtual machine with Windows 7. The initial steps are all about getting the software set up, which you’d expect from a software defined radio. All that was pretty straightforward using the software disk that’s supplied with the rig. Then, when you turn on the rig a few more drivers are installed. Here’s a photo of the rig in operation.

Flex-1500

I tried CW using my Begali Graciella key, which is close in size to the rig itself. For some reason, the internal keyer didn’t readily connect my ear and key as I had a bit of a problem matching up my fist. But the tuning was great and the visual display really stunning. There were a number of useful features around filtering, etc. Plus, there is a contest window for programming your messages for the function keys. I also connected my NorCal QRP Wattmeter and can verify that the rig can put out 5 watts.

Next I tried the WWV settings where it very handily moves from one frequency to the next (2.5, 5, 10, 15) with the click of a button. I also tried the general coverage bands and listened to some AM broadcasts. It’s a very nifty full-featured receiver and could be fun entering some of the contests in QRP categories or just getting on the air and working QRP. In addition, as Flex points out, it would no doubt work great with transverters for VHF-UHF operation.

For me the next steps in the Windows world that this rig operates in would be to set up a logging program along with a digital modem for RTTY and PSK. Over the past year or so I’ve wrestled with getting a Windows computer just for the ham shack. What’s tempted me along these lines is that it would allow me to put into play all the great sofware that is available for ham radio in that operating system, from N1MM to MMTTY and so on. My latest venture into RTTY makes this an very interesting option and this rig would make one more reason. Still, not really sure I’m ready for that move. Plus, my finances this year are strapped with all the travel, etc. needed around the National Scout Jamboree.

Stay tuned to see what happens going forward — always finding ways to achieve some level of continuous improvement — or is it continuous movement?

2 Comments
Categories : Radio Equipment, Radio Software
Tags : Software
F1500_new_RAV

Lucky Guy

Posted by Jim Wilson 
· Sunday, January 13th, 2013 
· 3 Comments

Yesterday I attended the Lone Star DX Association‘s quarterly meeting. The meeting promised a presentation by Greg Jurrens, K5GJ, from FlexRadio Systems to discuss Software Defined Radio (SDR). An exciting addition was a drawing for their FLEX-1500 160-6m QRP transceiver. The BBQ lunch is always good as well. Plus, I brought my QSL cards for card-checking — should have DXCC 200 countries on CW soon.

Greg took us through the principles of SDR along with some comparisons of existing amateur radio transceivers. He also went well into the detail around signal processing and just how the whole thing works — at least as much as I could handle. The versatility is really amazing and the display with panadapter visuals, etc. is really neat.

Then it was time for the drawing. They slowly announced the winner: K-5-N-D. I sat there waiting for someone to jump up all excited about winning. When that didn’t happen, I processed the call sign and found it was me! It was a bit like waiting in a CW pileup and when they finally call your call sign you’re stunned and slow to action. How lucky I am!

I now have the radio at home. Looked up the software requirements — it runs on Windows only and they are noting that you can run it on a Mac using Boot Camp but don’t recommend using virtual machines, like Parallels. I have been toying several different times with getting a Windows computer for my ham shack to support contesting and now RTTY. This could certainly provide the momentum to move in that direction.

This promises to be another incredible ham radio adventure — and this one is just getting started!

3 Comments
Categories : Radio Equipment, Radio Software
Tags : Software
RTTY-Tape-Slant-V3-160

RTTY Adventures

Posted by Jim Wilson 
· Monday, December 31st, 2012 
· No Comments

This past week I’d worked my way through most of my task list and decided to investigate digital modes. Back in the very early 1980′s I was exclusively into RTTY operation as KB8CE. That station had a Teletype Model 19 with paper tape reader and punch. It also had a rack mount demodulator that I’d built with 88 mHy toroids and a 4 inch scope that I’d salvaged from an old oscilloscope. Also in that rack was a R-388 receiver, for press transmissions, and a UART gear shifter that used digital techniques to move from various RTTY speeds to the speed my teletype was set. I wrote an article on the UART that ran in Wayne Green’s 73 Magazine.

So fast forward to the waning days of 2012. I had previously tried receiving PSK a couple of years ago and wasn’t overly impressed. This time I spent some more time in getting RUMlog and Cocoa Modem up and running correctly. Even spent some time with the documentation for both of the programs. Learned a great deal in the process and got some things corrected in the set up.

I have to say that Cocoa Modem is absolutely spectacular in the features it offers. With PSK it provides a table of all the contacts going on within the window of your receiver, something like CW skimmer but this provides the running dialog with each of the QSO’s. This is a really nifty set up. With RTTY it allows running both receivers so you can scan the bands or you can better monitor the split operations to find out who is responding to the DX’s calls. Meanwhile, RUMlog directly interfaces with Cocoa Modem to make the QSO’s simple. In addition, RUMped — the contest logging program also by Tom, DL2RUM, interfaces directly with Cocoa Modem. This is a very nice set up and works quite well, once I understood exactly how to set up everything.

I’ll further note that the Elecraft K3 works beautifully for RTTY and PSK with the built-in audio interfaces, I only use stereo cables direct to my iMac. Plus, it has special filters just for the mark and space frequencies. All in all, I’m really pleased with how everything has come together to make what appears to be a first class RTTY/PSK station, all for a couple of cables and some software configuration.

I’ve made a few PSK contacts along with some RTTY contacts. I have to say that I really like RTTY. It must be the nostalgia of getting back into this mode after 30 years and the sound of the diddles. I also plan to get on for the ARRL RTTY Round Up this coming weekend. That should give me some experience!

Yet another ham radio adventure — RTTY and PSK! Fun times!

No Comments
Categories : Radio Equipment, Radio Software, RTTY
Tags : RTTY, Software
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