Archive for the ‘qrp’ Category

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QRSS experiments: FSKCW and Slow Hell

December 27th, 2017 | Author:

These last few days I’ve been experimenting with my QRPLabs Ultimate 2 and Ultimate 3s transmitting on 7 MHz. In addition to WSPR, the modes transmitted have been FSKCW with 6 second long dots, and Slow Hell with 17 second long characters. The result as received this morning can be seen on the display from the grabber of Les, G3VYZ in Northumberland, UK. This is a stack of 6 consecutive 10 second frames as can be found on the QRSS grabber site of AJ4VD.

FSKCW and Slow Hell reception of LA3ZA at G3VYZ

My signal is on 7,039.870 kHz and has been set up with a FSK shift of 6 Hz. Power output was 0.2 W and the distance is about 890 km.

It works but the reception is much less reliable than for WSPR, which is not so unexpected. At the same time the WSPR signal was received all around Northern Europe (G, GM, DL, OON, OE, LX, LA, OY, OH, PA, SM) as well as on the Canary Islands, 3930 km away.

uBITX now on back order.

December 12th, 2017 | Author:
The uBITX kit as I predicted, proved so successful when it went on sale on Saturday 9th December, by Monday 11th, Asharr Farhan was telling us all on the BITX20 group, current stock of the first uBITX production run was exhausted!


Demand has just outstripped supply, by what the thinking was there was enough stock to last for 2 months?




Anyone ordering the uBITX now, will not get shipped until after at least the 25th December. This is now being flagged up when you come to order.

Did the uBITX  become more successful overnight than the ICOM IC-7300, did it sell more in it's first days of sale? Or does it say to the main three radio manufacturers, you missed a market for a plain no bells and whistles multiband radio that everyone can afford and muck into and understand?

One thing for certain Asharr Farhan has proved without a doubt that he has been the first to achieve and do this, putting into mass production a multiband rig at a price point that everyone can be part of and enjoy! I am sure as well as the uBITX there is a lot more to come from HF Signals in the future!


Well done VU2ESE!

Old, But Still Useful!

August 4th, 2017 | Author:

This old WWII military training video is still useful regarding Morse code:

[embedyt]https://www.youtube.com/watch?v=YqTn-165orw[/embedyt]

This is an antique United States Navy Training Film from 1943/1944, in which proper hand-sending of Morse code is demonstrated. The film covers some basic principles and mechanics of manual keying of the International Morse code, as used during WWII.

Amateur (Ham) radio operators find Morse code (and the ‘CW’ mode, or ‘Continuous Wave’ keying mode) very useful, even though Morse code is no longer required as part of the licensing process. Morse code is highly effective in weak-signal radio work. And, preppers love Morse code because it is the most efficient way to communicate when there is a major disaster that could wipe out the communications infrastructure.

While this military film is antique, the vintage information is timeless, as the material is applicable to Morse code, even today.

There’s more about Morse code, at my website: http://cw.hfradio.org

For additional joy, here are a few of old films regarding Morse code:

Morse Code – Principles and Basic Techniques (US Army Signal)
(Learn to Send Perfect Morse Code by Hand – Vintage Training Film (Ham Radio / CW))
[embedyt]https://www.youtube.com/watch?v=qmg1MlstxWM[/embedyt]

Vintage 1944 Radio Operator Training: How to Send Morse Code (CW) by Hand
[embedyt]https://www.youtube.com/watch?v=XjupJslRj5E[/embedyt]

This one is a pretty cool film:
1939 Film: New Zealand Shortwave Communications; Morse code (CW)
[embedyt]https://www.youtube.com/watch?v=H-KUat5WEkU[/embedyt]

I’ve also created a play list, and most of the videos are still online. Once and a while something changes and I have to update the list. Here is the list:

CW Play List

Original Title: TECHNIQUE OF HAND SENDING, by Department of Defense, Published 1944

Usage CC0 1.0 Universal

TECHNIQUE OF HAND SENDING
PIN 23735 1944

IMPORTANT PARTS OF THE TRANSMITTER, TENSION SPRING, ADJUSTING CONTACTS, ADJUSTING SPRINGS. ELEMENTS OF MORSE CODE, TIMING, AND PARTS OF BODY THAT FUNCTION WHEN TRANSMITTING CODE. IMPORTANCE OF CORRECT POSITION AND OPERATION.

Producer Department of Defense

Enjoy!

Flight of the Bumble Bee QRP contest

July 31st, 2017 | Author:
Setting up 
This is the first (but not last) year I participated in this contest, I have Larry W2LJ to thank as his blog posts regarding this contest inspired me. Both Julie and I made plans for this day, for me it was contesting and she hauled along all her cameras and gear and had a blast with her hobby photography.  The weather was fantastic with it being 31C in the shade but we were right on Lake Ontario with a nice breeze off the lake made it pleasant. I operated from Humber bay shores park which is just outside our condo. We brought along camp chairs and a portable table as we knew the park would be very busy and finding a picnic table would be out of the question. The contest started at 1pm local time which gave Julie and I time to pick out something to eat. (fruit crepes with maple syrup) Once we found our spot in the park and setup we sat and enjoyed the crepes as one has to fuel up before the contest.
The view from the op table
The rig I used was my Elecraft KX3 on external battery power, the antenna was the Chameleon CHA P mag loop antenna and my key was the Palm mini paddle   I was very happy with the Chameleon CHA P antenna, it only took me 5 min's to setup. It was very easy to tune but it was not until 1/2 way through my outing that I realized the KX3 had the preamp off! Once I put the preamp on finding the noise peak was much easier. I was very pleased with the setup and performance of the antenna. I was only able to operate for 2 of the 4 hours of the contest as Julie and I had dinner guests we had to be back home and prepare for. I only operated on 20m as this band was open and the QRP contacts were being heard. I was pleased that I made 11 contacts and I did have about 5 folks stop and ask questions about what I was doing. One gentleman told me that his dad was a ham and one of the young people that stopped told me she read about morse code in her history class! The band was in great shape and I was able to hear and work QRP stations all over the U.S. I made 2 contacts into New Jersey and for some reason I have never in the past made it to that state when doing portable field op's. I really enjoyed this contest and am looking forward to it next year.
Setting up the loop
The outdoor shack.
Chameleon CHA P 
Fuelling  up before 

Flight of the Bumble Bee QRP contest

July 31st, 2017 | Author:
Setting up 
This is the first (but not last) year I participated in this contest, I have Larry W2LJ to thank as his blog posts regarding this contest inspired me. Both Julie and I made plans for this day, for me it was contesting and she hauled along all her cameras and gear and had a blast with her hobby photography.  The weather was fantastic with it being 31C in the shade but we were right on Lake Ontario with a nice breeze off the lake made it pleasant. I operated from Humber bay shores park which is just outside our condo. We brought along camp chairs and a portable table as we knew the park would be very busy and finding a picnic table would be out of the question. The contest started at 1pm local time which gave Julie and I time to pick out something to eat. (fruit crepes with maple syrup) Once we found our spot in the park and setup we sat and enjoyed the crepes as one has to fuel up before the contest.
The view from the op table
The rig I used was my Elecraft KX3 on external battery power, the antenna was the Chameleon CHA P mag loop antenna and my key was the Palm mini paddle   I was very happy with the Chameleon CHA P antenna, it only took me 5 min's to setup. It was very easy to tune but it was not until 1/2 way through my outing that I realized the KX3 had the preamp off! Once I put the preamp on finding the noise peak was much easier. I was very pleased with the setup and performance of the antenna. I was only able to operate for 2 of the 4 hours of the contest as Julie and I had dinner guests we had to be back home and prepare for. I only operated on 20m as this band was open and the QRP contacts were being heard. I was pleased that I made 11 contacts and I did have about 5 folks stop and ask questions about what I was doing. One gentleman told me that his dad was a ham and one of the young people that stopped told me she read about morse code in her history class! The band was in great shape and I was able to hear and work QRP stations all over the U.S. I made 2 contacts into New Jersey and for some reason I have never in the past made it to that state when doing portable field op's. I really enjoyed this contest and am looking forward to it next year.
Setting up the loop
The outdoor shack.
Chameleon CHA P 
Fuelling  up before 

Skunked on my day out.

July 16th, 2017 | Author:
The setup in the car
The CHA P loop 
On Saturday wife and I had some errands to do in the town we used to live in, it's about an hours drive from were we are now. Julie had an appointment that would last for approximately 2 hours so I felt bringing the Elecraft KX3 would help pass this 2 hour time slot. I brought along my new loop antenna from Chameleon CHA P loop antenna . (A review of this antenna is coming soon) The weather was great and I had my spot preplanned out, it was along a river that flowed through town and there was a nice picnic table there that I have used in the past. Once I dropped of Julie for here appointment it was off to the river, I found there was a wedding shoot going on and the table was not gone! I then had to scope out a new spot which did not take long. The new spot was in a parking lot at the entrance to a park, not the same view as the river side setup but it will do. I was keying out CQ for about 1.5 hours with no answers but I did hear some stations but they were already in QSO's. I did check the Reverse Beacon Network to make sure my CW signal was getting out and it was, the conditions were good as well but I guess it was just time for me to give my CW fist a workout. As always Murphy seems to make his visit at least once on my outings. On this day Murphy decided to make my CW operations a bit more challenging. For a long time I have been using the Palm Radio's Mini Paddle. I find this paddle to be very smooth and very well made. A number of years ago the folks at Palm Radio sent me their newly revised cable that goes from the rig to the paddle. It was lighter and more easy to work with and a great improvement over the more bulky cable that was being used in the past.  I have owned this cable for about 5 years without any issues until yesterday on my outing. The end that plugs into the paddle had come apart, the two parts are held together by a screw. I thought at the time I just failed to check the screw and it came loose. I did not have a mini screw driver with me so I had to very carefully plug the connector into the key. Once I got home and upon closer look I realized the connector was broken and the only choice I had was to glue the two pieces together. I did this and it worked fine but in the end this is a one time fix. Overall I made no contacts but it was nice to get out and just have the enjoyment of getting on the radio and it's very relaxing.
Reverse Beacon Network
The broken connector 

Skunked on my day out.

July 16th, 2017 | Author:
The setup in the car
The CHA P loop 
On Saturday wife and I had some errands to do in the town we used to live in, it's about an hours drive from were we are now. Julie had an appointment that would last for approximately 2 hours so I felt bringing the Elecraft KX3 would help pass this 2 hour time slot. I brought along my new loop antenna from Chameleon CHA P loop antenna . (A review of this antenna is coming soon) The weather was great and I had my spot preplanned out, it was along a river that flowed through town and there was a nice picnic table there that I have used in the past. Once I dropped of Julie for here appointment it was off to the river, I found there was a wedding shoot going on and the table was not gone! I then had to scope out a new spot which did not take long. The new spot was in a parking lot at the entrance to a park, not the same view as the river side setup but it will do. I was keying out CQ for about 1.5 hours with no answers but I did hear some stations but they were already in QSO's. I did check the Reverse Beacon Network to make sure my CW signal was getting out and it was, the conditions were good as well but I guess it was just time for me to give my CW fist a workout. As always Murphy seems to make his visit at least once on my outings. On this day Murphy decided to make my CW operations a bit more challenging. For a long time I have been using the Palm Radio's Mini Paddle. I find this paddle to be very smooth and very well made. A number of years ago the folks at Palm Radio sent me their newly revised cable that goes from the rig to the paddle. It was lighter and more easy to work with and a great improvement over the more bulky cable that was being used in the past.  I have owned this cable for about 5 years without any issues until yesterday on my outing. The end that plugs into the paddle had come apart, the two parts are held together by a screw. I thought at the time I just failed to check the screw and it came loose. I did not have a mini screw driver with me so I had to very carefully plug the connector into the key. Once I got home and upon closer look I realized the connector was broken and the only choice I had was to glue the two pieces together. I did this and it worked fine but in the end this is a one time fix. Overall I made no contacts but it was nice to get out and just have the enjoyment of getting on the radio and it's very relaxing.
Reverse Beacon Network
The broken connector 
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