With a little help from my friends, Part I
As I wrote about last week, my G5RV antenna came down as the result of a storm. My original plan was to try to repair the existing antenna, but after examining it further, I decided that I’d be better off buying a replacement which is exactly what I did. (I’ll look at fixing the old one one of these days.) Matthew, K2NUD, and David, K2DSL, volunteered to come over last Saturday to help me get the antenna up in air, so we planned to meet at my house at around 2:30 which would give me enough time to run out to KJI Electronics to pick up the new antenna. The one that they had in stock from from MFJ and while it didn’t seem to be build as sturdily as what I’d had in the air, I figured that getting some copper in the air was better than nothing.
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| Throw bag |
The old antenna was suspended between two trees with the farthest end being at probably 60 or 70 feet in the air. (I’m terrible at estimating height, but I know that it’s significantly higher than the roof of my house, which is at about 35 feet or so.) The antenna snapped at the far end, leaving the line suspending it about 50 feet in the air and somewhat tangled in the branches. As a result, it wasn’t possible to get to that rope to re-use it, so Matthew came up with a better plan: a potato gun. The link tells you lots about potato guns, but in a nutshell, this is a gun made from PVC pipe that’s used to fire a potato. (Why would you do that? Because it’s unbelievably fun!) In order to get the potato to do something other than just shoot up in the air (and make a pretty cool sound), we put the throw bag which trailed 100 feet of line on top of the potato which worked like a champ.
The way the potato gun works is that you put the “fuel” (old-fashioned non-environmentally friendly Aqua-Net hairspray) into a chamber and ignite it which forces a potato, previously jammed down the barrel, up and out of the barrel at a pretty high rate of speed. In the picture here, Matthew (green jacket) is holding the gun while I spray in the “fuel” into the combustion chamber. That’s David on the left. Somewhere out there I’m sure someone has done some calculations about amount of force that’s being generated to launch the potato that far (not to mention the added one-pound throw bag), but physics aside, as I mentioned earlier, it’s fun to watch.
It took a few tries, but Matthew managed to get the line over the right branch, which is a lot more difficult than it sounds. Although made somewhat easier by the fact that there are no leaves on the trees at this time of the year, it’s still a lot like threading a needle that’s about 50 feet away and 75 feet in the air. We came close a couple of times, but Matthew wanted to keep trying to get it exactly right, which I think was an excuse to fire off a few more shots. There’s more to the story which I’ll talk about in Part II, but here’s a video taken by my son Justin during one of the “firings”. (If you’re reading this in an RSS reader or email and can’t see the video, you click here to go directly to the video on YouTube.)
David Kozinn, K2DBK, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
With a little help from my friends, Part I
As I wrote about last week, my G5RV antenna came down as the result of a storm. My original plan was to try to repair the existing antenna, but after examining it further, I decided that I’d be better off buying a replacement which is exactly what I did. (I’ll look at fixing the old one one of these days.) Matthew, K2NUD, and David, K2DSL, volunteered to come over last Saturday to help me get the antenna up in air, so we planned to meet at my house at around 2:30 which would give me enough time to run out to KJI Electronics to pick up the new antenna. The one that they had in stock from from MFJ and while it didn’t seem to be build as sturdily as what I’d had in the air, I figured that getting some copper in the air was better than nothing.
![]() |
| Throw bag |
The old antenna was suspended between two trees with the farthest end being at probably 60 or 70 feet in the air. (I’m terrible at estimating height, but I know that it’s significantly higher than the roof of my house, which is at about 35 feet or so.) The antenna snapped at the far end, leaving the line suspending it about 50 feet in the air and somewhat tangled in the branches. As a result, it wasn’t possible to get to that rope to re-use it, so Matthew came up with a better plan: a potato gun. The link tells you lots about potato guns, but in a nutshell, this is a gun made from PVC pipe that’s used to fire a potato. (Why would you do that? Because it’s unbelievably fun!) In order to get the potato to do something other than just shoot up in the air (and make a pretty cool sound), we put the throw bag which trailed 100 feet of line on top of the potato which worked like a champ.
The way the potato gun works is that you put the “fuel” (old-fashioned non-environmentally friendly Aqua-Net hairspray) into a chamber and ignite it which forces a potato, previously jammed down the barrel, up and out of the barrel at a pretty high rate of speed. In the picture here, Matthew (green jacket) is holding the gun while I spray in the “fuel” into the combustion chamber. That’s David on the left. Somewhere out there I’m sure someone has done some calculations about amount of force that’s being generated to launch the potato that far (not to mention the added one-pound throw bag), but physics aside, as I mentioned earlier, it’s fun to watch.
It took a few tries, but Matthew managed to get the line over the right branch, which is a lot more difficult than it sounds. Although made somewhat easier by the fact that there are no leaves on the trees at this time of the year, it’s still a lot like threading a needle that’s about 50 feet away and 75 feet in the air. We came close a couple of times, but Matthew wanted to keep trying to get it exactly right, which I think was an excuse to fire off a few more shots. There’s more to the story which I’ll talk about in Part II, but here’s a video taken by my son Justin during one of the “firings”. (If you’re reading this in an RSS reader or email and can’t see the video, you click here to go directly to the video on YouTube.)
David Kozinn, K2DBK, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
More real radio and Cyrillic morse
When I called Radcom VHF editor, David, G4ASR last weekend in the 144MHz AFS contest, it was fun when he replied “Good to see you doing real radio, Tim, don’t bother with the other stuff!”. Thanks for reading the blog, Dave!
There couldn’t be anything much more ‘real radio’ than 3.5MHz CW, could there? Last night Julie was out at a WI meeting (oooh – I haven’t mentioned her Etsy shop for a while – there are some lovely gifts for someone in your life – look out particularly for things she’s made featuring our home-grown lavender) and I switched on the HF radio for some ‘company’ as some people would the TV…
Looking around the low-end of 80m, I tuned from station to station to get a sense of what the band was doing and stopped on a CW ragchew to see who it was. My CW’s not quite as sharp as it used to be, but it’s not bad and I don’t miss much. But this QSO was getting me worried – I really couldn’t understand much at all. Fortunately all became clear when the callsigns were sent – it was a UA4 talking to a UA1. Of course, they were using Cyrillic Morse – hence it seemed like some of the characters might be familiar, yet weren’t! I always love to hear those Russian QSOs and on a winter’s evening, it’s surprising just how deep into the Asian continent you can hear if the band’s quiet.
And so it was until an expedition landed in the vicinity (ZL8X?) and all hell broke loose. Then, it was time to go and make a coffee…
Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].
Death of 20m incorrectly reported
It’s a good job I looked at the beacon reports this morning or I wouldn’t have noticed that there were no reception reports for the 20m band. The problem was that I had visited 20m yesterday and put the K3 into data mode. An annoying feature of the K3 is that when you change bands it restores the mode you last used on that band. It does that even if the band change is being made under software control, even if the mode it is restoring is inappropriate for the frequency you are changing to under the band plan. This is totally bonkers logic because no computer program worth its salt should make assumptions about the state of the radio so when changing the frequency it should also set the mode. Unfortunately if it sets the mode too quickly, or before the frequency change is sent, the K3 “feature” overrides the mode set by the software. Consequently the option in Faros to “force CW mode” doesn’t work on the K3 and you are left in the mode you last used on that band.
Faros is not alone in experiencing this problem. Complaints have been frequent on the Elecraft reflector that when clicking on DX cluster spots in various programs the radio changes to the right frequency but is in the wrong mode. One of the reasons I wrote KComm specifically for the Elecraft radios was that I could make it work the way the radios work instead of being stuck with some generic logic. But there is nothing I can do about programs I didn’t write. I wish that more ham radio applications were open source so you could fix problems like this yourself instead of having to ask a developer to make the necessary changes (and very often getting nowhere.)
Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].
My first QSO with V4 mode
This was on 80m, running 25W to the bent 80plus2 dipole in the attic. I also copied snatches from WD4KPD and KC2DMC. I have never worked across the Atlantic on 80m on any mode, so this new mode seems quite promising.
Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].
Handiham World for 08 December 2010
Welcome to Handiham World!
How do you learn to operate a new radio? Or look up something about a radio you’ve already owned for years?

One of the most popular services that the Handiham System used to offer was audio tape versions of equipment manuals on cassette tape. We have a few of the old manuals still available in that aging format, but let’s face it – most people would rather forget how awful finding anything in an audio tape reference book can be. Sometimes the manuals were long, and that meant multiple tapes. Which one had the part about setting the memories? And even then, which track would it be on?
We now take the approach of recruiting a blind user who can teach the radio from a blind perspective. An audio file (or series of files) can be a lot more helpful to another blind user, since learning from a blind teacher pretty much eliminates all the usual dumb mistakes sighted people like me make when we are trying to get a point across.
Thankfully, the radio manufacturers are making equipment support documents like instruction manuals available in accessible PDF via website downloads. The accessible PDF isn’t perfect, but it does contain embedded text that can be searched. This puts the blind (or sighted) operator in the driver’s seat when it comes to finding the part of the manual that one wants.
The next frontier is to figure out how to make these manuals into a somewhat easier to navigate DAISY format. As we contemplate what our blind and sighted Handiham members really want, I thought it would make the most sense to simply ask:
So here’s my question to you: How do you use equipment manuals, and what can be done to make learning about a radio easier? Let me know so that we can figure out where to go with this next new frontier.
Pat Tice, WA0TDA, is the manager of HANDI-HAM and a regular contributor to AmateurRadio.com. Contact him at [email protected].
December 2010 Giveaway Winner

We are very pleased to announce the winner of
1,000 Photo QSL Cards
from KB3IFH
Thanks to Randy for sponsoring this month’s drawing.
We had over 700 entries!
We’re giving away more great prizes soon.
Stay tuned and get ready to enter.
OK, onto what you’ve all been waiting for!
The winner of our December 2010 prize giveaway is…
Matt Thomas, W1MST, is the managing editor of AmateurRadio.com. Contact him at [email protected].















