Posts Tagged ‘amateurradio.com’
6m/70cm antenna updates at the QTH
I have made some changes to my antenna set up. A local amateur was selling a second 13-element 70cm yagi and a 6m HB9CV antenna at a low price so decided to acquire them.
The 70cm yagi was to replace the small 7-element one which I pressed into service as a hand held antenna for potentially finding my HAB payloads last year.
To be honest I wasn't really after a 6m antenna due to the size and visual impact. I have a 6m 'wooden' moxon I made back in 2014 but it is heavy, ugly and unstable so had been collecting cobwebs in the garage. I decided with the prospect of 'Sporadic E' season around the corner I would be foolish not to put it up.
The HB9CV wasn't in the best of conditions but seemed complete albeit it was purchased dismantled. The elements were a little weathered so I set about cleaning them up with a light rubbing down with some wire wool and a rag with a drop of WD40. On closer inspection the tube that made up the front element had some noticeable bending and on removing the plastic mounting to investigate I spotted a crack in the tube wall by the hole for the mounting bolt.
While it hadn't totally separated it would only be a matter of time before it did fail as it was flexing, the plastic mount was the only thing holding it together. I found a suitable piece of alloy tube from a scrap antenna which was a perfect fit inside the broken element. I cut a suitable length and pushed it up inside the element to the appropriate position and then simply drilled through and bolted either side of the central hole to stabilise and strengthen it (can be seen in image below)
The next issue I had to address was the feed point, it came with about six inches of RG58 coax projecting from it where it had simply been cut for removal by the previous owner. I prised off the cover cap to find it full of water, the reason being a hole in the back and it being stored outside I believe.
Thankfully the trimming capacitor seemed okay, while it was wet it wasn't corroded. It was all dried out and the hole plugged with silicon and I set about re-assembling the antenna which was a little fiddly to get the phasing line to sit properly but once done it was a simple matter of adjusting the capacitor to get the VSWR to a minimum in the SSB section of the 6m band. I mounted on the rotator pole just below the X50 collinear.
I used it last month in the 6m UKAC and while my operating not exactly earth shattering I was happy with its performance using just 10W in the low power section just "search and pouncing" for a little over an hour.
.
The 70cm Yagi was straight forward as was already assembled, I just had to make a slight tweak to the gamma-matching bar as the VSWR was unexpectedly high around 2:1 in the SSB segment of the band, it seemed to have been tuned for the FM portion of the band. I managed just an hour "search and pouncing" in Aprils 70cm UKAC, I started late and while signal reports both ways were a marked improvement I found the extra directionality and off beam rejection something I will have to get used not helped by a temperamental rotator.
The 70cm yagi was to replace the small 7-element one which I pressed into service as a hand held antenna for potentially finding my HAB payloads last year.
To be honest I wasn't really after a 6m antenna due to the size and visual impact. I have a 6m 'wooden' moxon I made back in 2014 but it is heavy, ugly and unstable so had been collecting cobwebs in the garage. I decided with the prospect of 'Sporadic E' season around the corner I would be foolish not to put it up.
The HB9CV wasn't in the best of conditions but seemed complete albeit it was purchased dismantled. The elements were a little weathered so I set about cleaning them up with a light rubbing down with some wire wool and a rag with a drop of WD40. On closer inspection the tube that made up the front element had some noticeable bending and on removing the plastic mounting to investigate I spotted a crack in the tube wall by the hole for the mounting bolt.
While it hadn't totally separated it would only be a matter of time before it did fail as it was flexing, the plastic mount was the only thing holding it together. I found a suitable piece of alloy tube from a scrap antenna which was a perfect fit inside the broken element. I cut a suitable length and pushed it up inside the element to the appropriate position and then simply drilled through and bolted either side of the central hole to stabilise and strengthen it (can be seen in image below)
The next issue I had to address was the feed point, it came with about six inches of RG58 coax projecting from it where it had simply been cut for removal by the previous owner. I prised off the cover cap to find it full of water, the reason being a hole in the back and it being stored outside I believe.
Thankfully the trimming capacitor seemed okay, while it was wet it wasn't corroded. It was all dried out and the hole plugged with silicon and I set about re-assembling the antenna which was a little fiddly to get the phasing line to sit properly but once done it was a simple matter of adjusting the capacitor to get the VSWR to a minimum in the SSB section of the 6m band. I mounted on the rotator pole just below the X50 collinear.
I used it last month in the 6m UKAC and while my operating not exactly earth shattering I was happy with its performance using just 10W in the low power section just "search and pouncing" for a little over an hour.
.
The 70cm Yagi was straight forward as was already assembled, I just had to make a slight tweak to the gamma-matching bar as the VSWR was unexpectedly high around 2:1 in the SSB segment of the band, it seemed to have been tuned for the FM portion of the band. I managed just an hour "search and pouncing" in Aprils 70cm UKAC, I started late and while signal reports both ways were a marked improvement I found the extra directionality and off beam rejection something I will have to get used not helped by a temperamental rotator.
It was an NPOTA weekend …..
in more ways than one.
I worked about 5 or 6 new entities between Friday night and Saturday, so I am getting really close to my personal goal of working 100. The bands have been good the past couple of days, after totally stinking during the middle of the week, so that was a good thing.
I have lived relatively near Morristown National Historical Park my entire life. I think I've been there once before NPOTA. Yesterday, I decided to take Marianne and our dog, Harold up there for the afternoon, as dogs are welcome there. It was a beautiful Spring day, Marianne had an extremely rare Saturday off; and I wanted to do something with her. It seemed like a good opportunity to enjoy the gorgeous weather, walk the dog and get some good exercise in for ourselves. It's because of NPOTA that I discovered that dogs are welcome there. If I didn't see that while I was up there, activating the park, I wouldn't have known otherwise.
Much to our surprise, when we got there, we found out that a Revolutionary War re-enactment was taking place:
The highlight of the day was when one of the re-enactors came up to me and tapped me on the shoulder. He pointed to the American flag that is embroidered on the left sleeve of my jacket and he said to me, "Kind sir, a question, please. It appears that you have a United States flag on your coat; and yet there are so many stars? Certainly more than 13!"
I answered, "It's a long and sometimes bloody story, and I don't think we have time to go through it all, but I would like to thank you and your fellow soldiers for giving birth to the finest Nation on Earth."
He chuckled, and I chuckled at our impromptu time travelling scenario. In the end, it was great NPOTA day, even though this one didn't involve Amateur Radio. So hats off to the ARRL for reminding me about some of the really cool places that there are to visit around my QTH.
In the evening, I decided that I would go out early Sunday morning to activate Sandy Hook, which is part of the Gateway National Recreational Area - RC08.
I used the Jackite pole and my homebrew mast holder and the PAR END FEDZ 40/20/10. In a little over an hour, I made over 40 contacts on 40 and 20 Meters. Bext DX was Alberta, Saskatchewan and California. Not bad for 5 Watts, and if at all possible, the PAR will be my preferred antenna for future activations.
I would have stayed longer, but I had somewhere to go with my daughter Cara, so I made due with the time I had. It was a bit brisk while I was there, but it was sunny and clear. If you click on the bottom photo, you just might be able to make out the New York City skyline in the distance, on the horizon.
Sandy Hook was my third activation, and I hope to do at least two more in New Jersey - the Pinelands and the Appalachain Trail in the Northwest part of the state. When we go up to Lake George this Summer, I also hope to spend one day at Saratoga and activate HP42 while I'm in the neighborhood.
72 de Larry W2LJ
QRP - When you care to send the very least!
I worked about 5 or 6 new entities between Friday night and Saturday, so I am getting really close to my personal goal of working 100. The bands have been good the past couple of days, after totally stinking during the middle of the week, so that was a good thing.
I have lived relatively near Morristown National Historical Park my entire life. I think I've been there once before NPOTA. Yesterday, I decided to take Marianne and our dog, Harold up there for the afternoon, as dogs are welcome there. It was a beautiful Spring day, Marianne had an extremely rare Saturday off; and I wanted to do something with her. It seemed like a good opportunity to enjoy the gorgeous weather, walk the dog and get some good exercise in for ourselves. It's because of NPOTA that I discovered that dogs are welcome there. If I didn't see that while I was up there, activating the park, I wouldn't have known otherwise.
Much to our surprise, when we got there, we found out that a Revolutionary War re-enactment was taking place:
The highlight of the day was when one of the re-enactors came up to me and tapped me on the shoulder. He pointed to the American flag that is embroidered on the left sleeve of my jacket and he said to me, "Kind sir, a question, please. It appears that you have a United States flag on your coat; and yet there are so many stars? Certainly more than 13!"
I answered, "It's a long and sometimes bloody story, and I don't think we have time to go through it all, but I would like to thank you and your fellow soldiers for giving birth to the finest Nation on Earth."
He chuckled, and I chuckled at our impromptu time travelling scenario. In the end, it was great NPOTA day, even though this one didn't involve Amateur Radio. So hats off to the ARRL for reminding me about some of the really cool places that there are to visit around my QTH.
In the evening, I decided that I would go out early Sunday morning to activate Sandy Hook, which is part of the Gateway National Recreational Area - RC08.
I used the Jackite pole and my homebrew mast holder and the PAR END FEDZ 40/20/10. In a little over an hour, I made over 40 contacts on 40 and 20 Meters. Bext DX was Alberta, Saskatchewan and California. Not bad for 5 Watts, and if at all possible, the PAR will be my preferred antenna for future activations.
I would have stayed longer, but I had somewhere to go with my daughter Cara, so I made due with the time I had. It was a bit brisk while I was there, but it was sunny and clear. If you click on the bottom photo, you just might be able to make out the New York City skyline in the distance, on the horizon.
Sandy Hook was my third activation, and I hope to do at least two more in New Jersey - the Pinelands and the Appalachain Trail in the Northwest part of the state. When we go up to Lake George this Summer, I also hope to spend one day at Saratoga and activate HP42 while I'm in the neighborhood.
72 de Larry W2LJ
QRP - When you care to send the very least!
It was an NPOTA weekend …..
in more ways than one.
I worked about 5 or 6 new entities between Friday night and Saturday, so I am getting really close to my personal goal of working 100. The bands have been good the past couple of days, after totally stinking during the middle of the week, so that was a good thing.
I have lived relatively near Morristown National Historical Park my entire life. I think I've been there once before NPOTA. Yesterday, I decided to take Marianne and our dog, Harold up there for the afternoon, as dogs are welcome there. It was a beautiful Spring day, Marianne had an extremely rare Saturday off; and I wanted to do something with her. It seemed like a good opportunity to enjoy the gorgeous weather, walk the dog and get some good exercise in for ourselves. It's because of NPOTA that I discovered that dogs are welcome there. If I didn't see that while I was up there, activating the park, I wouldn't have known otherwise.
Much to our surprise, when we got there, we found out that a Revolutionary War re-enactment was taking place:
The highlight of the day was when one of the re-enactors came up to me and tapped me on the shoulder. He pointed to the American flag that is embroidered on the left sleeve of my jacket and he said to me, "Kind sir, a question, please. It appears that you have a United States flag on your coat; and yet there are so many stars? Certainly more than 13!"
I answered, "It's a long and sometimes bloody story, and I don't think we have time to go through it all, but I would like to thank you and your fellow soldiers for giving birth to the finest Nation on Earth."
He chuckled, and I chuckled at our impromptu time travelling scenario. In the end, it was great NPOTA day, even though this one didn't involve Amateur Radio. So hats off to the ARRL for reminding me about some of the really cool places that there are to visit around my QTH.
In the evening, I decided that I would go out early Sunday morning to activate Sandy Hook, which is part of the Gateway National Recreational Area - RC08.
I used the Jackite pole and my homebrew mast holder and the PAR END FEDZ 40/20/10. In a little over an hour, I made over 40 contacts on 40 and 20 Meters. Bext DX was Alberta, Saskatchewan and California. Not bad for 5 Watts, and if at all possible, the PAR will be my preferred antenna for future activations.
I would have stayed longer, but I had somewhere to go with my daughter Cara, so I made due with the time I had. It was a bit brisk while I was there, but it was sunny and clear. If you click on the bottom photo, you just might be able to make out the New York City skyline in the distance, on the horizon.
Sandy Hook was my third activation, and I hope to do at least two more in New Jersey - the Pinelands and the Appalachain Trail in the Northwest part of the state. When we go up to Lake George this Summer, I also hope to spend one day at Saratoga and activate HP42 while I'm in the neighborhood.
72 de Larry W2LJ
QRP - When you care to send the very least!
I worked about 5 or 6 new entities between Friday night and Saturday, so I am getting really close to my personal goal of working 100. The bands have been good the past couple of days, after totally stinking during the middle of the week, so that was a good thing.
I have lived relatively near Morristown National Historical Park my entire life. I think I've been there once before NPOTA. Yesterday, I decided to take Marianne and our dog, Harold up there for the afternoon, as dogs are welcome there. It was a beautiful Spring day, Marianne had an extremely rare Saturday off; and I wanted to do something with her. It seemed like a good opportunity to enjoy the gorgeous weather, walk the dog and get some good exercise in for ourselves. It's because of NPOTA that I discovered that dogs are welcome there. If I didn't see that while I was up there, activating the park, I wouldn't have known otherwise.
Much to our surprise, when we got there, we found out that a Revolutionary War re-enactment was taking place:
The highlight of the day was when one of the re-enactors came up to me and tapped me on the shoulder. He pointed to the American flag that is embroidered on the left sleeve of my jacket and he said to me, "Kind sir, a question, please. It appears that you have a United States flag on your coat; and yet there are so many stars? Certainly more than 13!"
I answered, "It's a long and sometimes bloody story, and I don't think we have time to go through it all, but I would like to thank you and your fellow soldiers for giving birth to the finest Nation on Earth."
He chuckled, and I chuckled at our impromptu time travelling scenario. In the end, it was great NPOTA day, even though this one didn't involve Amateur Radio. So hats off to the ARRL for reminding me about some of the really cool places that there are to visit around my QTH.
In the evening, I decided that I would go out early Sunday morning to activate Sandy Hook, which is part of the Gateway National Recreational Area - RC08.
I used the Jackite pole and my homebrew mast holder and the PAR END FEDZ 40/20/10. In a little over an hour, I made over 40 contacts on 40 and 20 Meters. Bext DX was Alberta, Saskatchewan and California. Not bad for 5 Watts, and if at all possible, the PAR will be my preferred antenna for future activations.
I would have stayed longer, but I had somewhere to go with my daughter Cara, so I made due with the time I had. It was a bit brisk while I was there, but it was sunny and clear. If you click on the bottom photo, you just might be able to make out the New York City skyline in the distance, on the horizon.
Sandy Hook was my third activation, and I hope to do at least two more in New Jersey - the Pinelands and the Appalachain Trail in the Northwest part of the state. When we go up to Lake George this Summer, I also hope to spend one day at Saratoga and activate HP42 while I'm in the neighborhood.
72 de Larry W2LJ
QRP - When you care to send the very least!
Bugging Out
Vibroplex Bug QSO
Sometimes I'm in a mood to use my bug. I'm still a relatively new CW operator and using my Vibroplex Original Bug is both novel to me and a challenge compared to my Kent Straight Key or using paddles.
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| The key lineup with the Bug in the center |
I purchased my bug used on a well known auction site for about $65. It dates to sometime in the mid 1970s but it doesn't differ much from bugs made in the past 75 years. I have added some weight to slow it down to around 19 wpm DITs by taping a heavy spacer onto the factory pendulum weight as well as adding a heavy metal spacer to the end of the pendulum. The weight on the end of the pendulum is held on by a simple plastic drywall screw anchor. I can pull the weight off the back quickly if I want to let it go up to about 25wpm DITs. Without the extra weights this bug sends at around 27wpm at it's slowest speed and up to... well I don't know how fast because I can't control it at the fastest speed yet and I certainly can't copy others at that speed so I usually keep it below 20wpm for now.
If you haven't used a bug I encourage you to give it a try. It's a challenging key to get the hang of but the effort to learn it is fun and rewarding. I especially enjoy the tactile feedback from that swinging pendulum and the the click-clacking of the pendulum against the hanging damper.
I was using my Ten-Tec Eagle (model 599) purchased used from a local ham. The Eagle is a super little QRO radio although in this QSO my output is 5w. If you have sharp eyes you may see that the power level is set to 7w but that is actually 5w output according to my external meter. The 100 number under the CW symbol is the bandwidth that I was using. I generally keep the bandwidth at 500 Hz but there was a station operating above us that I wanted to mask.
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| Ten-Tec Eagle 599 |
The Eagle is a great CW rig. This model has 3 front end crystal filters 2400Hz, 600Hz and 300Hz giving it nice selectivity for any mode.
I was working Ed, KG4W in VA who is an SKCC member. If you want to work other manual key stations 3550 kHz is a calling frequency for the SKCC. Ed told me during the QSO he was using a VIZ vertical bug which is a unique and interesting bug design.
He reported my signal as 599 and he was 599 as well. I was running 5w output power to my 80m OCF Dipole. He was using an Yaesu at 100w to a fan dipole. 5w was sufficient for this QSO but if he had reported me as 559 or weaker I would have raised my power to 20w to make copy for him easier. I enjoy using QRP but when I rag chew I don't want to make it difficult for QRO stations to copy me if I can help it so having the Eagle allows me to raise my power if necessary for the communication.
The QSO
So here's the qso between two bug operators. I hope you enjoy it...
That's all for now
So lower your power and raise your expectations
72/73
Richard, AA4OO
Never heard Heard
I saw on Facebook this morning, that many were thanking the VK0EK expedition for the ATNO and were thanking them, in general, for a wonderful DXpedition. I would suspect they have gone QRT.
And I would guess I'm in the minority as I'm not in any of their logs. In fact, I never even heard them decently well enough to work them. There were a couple of times that I could tell they were on a given frequency, but they never loud enough that I would be able to hear my own call come back to me, on the off-chance that they would have heard me. It didn't seem right to just add to the QRM.
Am I disappointed? You're darn tootin' I am! Working VK0EK would have been an ATNO for me and I sure as heck would love to have them in my DXCC tally. But I'm not depressed about it.
It all goes back to that post a few weeks ago about balance. Yes, I do not have Heard Island as an entity worked. However, the sun is still shining, the birds are still chirping, our solar system is still plowing its way throughout the galaxy. I still have to go to work tomorrow and earn a living.
And while I didn't work them, and life goes on, I still applaud their effort. It's not easy to go to a remote island near Antarctica, and brave the elements and hardships to provide the rest of us Amateur Radio ops with a bunch of excitement and fun.
Thank you Team VK0EK - even though I'm not in your log - thank you for a job very well done, indeed!
72 de Larry W2LJ
QRP - When you care to send the very least!
And I would guess I'm in the minority as I'm not in any of their logs. In fact, I never even heard them decently well enough to work them. There were a couple of times that I could tell they were on a given frequency, but they never loud enough that I would be able to hear my own call come back to me, on the off-chance that they would have heard me. It didn't seem right to just add to the QRM.
Am I disappointed? You're darn tootin' I am! Working VK0EK would have been an ATNO for me and I sure as heck would love to have them in my DXCC tally. But I'm not depressed about it.
It all goes back to that post a few weeks ago about balance. Yes, I do not have Heard Island as an entity worked. However, the sun is still shining, the birds are still chirping, our solar system is still plowing its way throughout the galaxy. I still have to go to work tomorrow and earn a living.
And while I didn't work them, and life goes on, I still applaud their effort. It's not easy to go to a remote island near Antarctica, and brave the elements and hardships to provide the rest of us Amateur Radio ops with a bunch of excitement and fun.
Thank you Team VK0EK - even though I'm not in your log - thank you for a job very well done, indeed!
72 de Larry W2LJ
QRP - When you care to send the very least!
Never heard Heard
I saw on Facebook this morning, that many were thanking the VK0EK expedition for the ATNO and were thanking them, in general, for a wonderful DXpedition. I would suspect they have gone QRT.
And I would guess I'm in the minority as I'm not in any of their logs. In fact, I never even heard them decently well enough to work them. There were a couple of times that I could tell they were on a given frequency, but they never loud enough that I would be able to hear my own call come back to me, on the off-chance that they would have heard me. It didn't seem right to just add to the QRM.
Am I disappointed? You're darn tootin' I am! Working VK0EK would have been an ATNO for me and I sure as heck would love to have them in my DXCC tally. But I'm not depressed about it.
It all goes back to that post a few weeks ago about balance. Yes, I do not have Heard Island as an entity worked. However, the sun is still shining, the birds are still chirping, our solar system is still plowing its way throughout the galaxy. I still have to go to work tomorrow and earn a living.
And while I didn't work them, and life goes on, I still applaud their effort. It's not easy to go to a remote island near Antarctica, and brave the elements and hardships to provide the rest of us Amateur Radio ops with a bunch of excitement and fun.
Thank you Team VK0EK - even though I'm not in your log - thank you for a job very well done, indeed!
72 de Larry W2LJ
QRP - When you care to send the very least!
And I would guess I'm in the minority as I'm not in any of their logs. In fact, I never even heard them decently well enough to work them. There were a couple of times that I could tell they were on a given frequency, but they never loud enough that I would be able to hear my own call come back to me, on the off-chance that they would have heard me. It didn't seem right to just add to the QRM.
Am I disappointed? You're darn tootin' I am! Working VK0EK would have been an ATNO for me and I sure as heck would love to have them in my DXCC tally. But I'm not depressed about it.
It all goes back to that post a few weeks ago about balance. Yes, I do not have Heard Island as an entity worked. However, the sun is still shining, the birds are still chirping, our solar system is still plowing its way throughout the galaxy. I still have to go to work tomorrow and earn a living.
And while I didn't work them, and life goes on, I still applaud their effort. It's not easy to go to a remote island near Antarctica, and brave the elements and hardships to provide the rest of us Amateur Radio ops with a bunch of excitement and fun.
Thank you Team VK0EK - even though I'm not in your log - thank you for a job very well done, indeed!
72 de Larry W2LJ
QRP - When you care to send the very least!
Get your news the old fashioned way
Morse News
I'm always looking for ways to improve my CW copy skills. When I'm away from the radio and have some spare time I use a program called Morse News.
| Morse News interface displaying a "Top 100 words" feed scrolling at the bottom |
It's an application that pulls RSS feeds and translates them to Morse. It has useful configuration options and even allows different "sounders" to be used.
For instance: you can listen to Morse the way railroad and Civil War telegraphers heard it via the clacking Telegraph sounder, or the early 20th century spark gap transmitters.
For instance: you can listen to Morse the way railroad and Civil War telegraphers heard it via the clacking Telegraph sounder, or the early 20th century spark gap transmitters.
The application is free but only runs on Windows computers. I'd love to see something like this for my phone.
Here's the link: http://sourceforge.net/projects/morse-rss-news/files/Morse%20Code%20Tools%203.2/MorseTools32Setup.exe/download
As with all software downloads from an untrusted source use your own best judgement whether to install this software and protect yourself from malware. I haven't detected any malware from my install but that doesn't mean it's not there.
Here's the link: http://sourceforge.net/projects/morse-rss-news/files/Morse%20Code%20Tools%203.2/MorseTools32Setup.exe/download
That's all for now
So lower your power and raise your expectations
72/73
Richard, AA4OO


























