I have now mounted my home-brew hacksaw blade Morse paddle on a steel base, added a nice red handle (made of insulating tape of course!) and fixed the spacing a bit so that it better meets my satisfaction. It's working well, although the spacing gave me some interesting problems during a QSO with PW0F on 40m CW, when it seemed to send random extra dits and dahs seemingly without input from me!! I would ideally like to tidy up the wiring a bit but it's largely complete and I've made a number of QSOs with it. Here's a QSO I had with a German operator in Dominican Republic using the newly-mounted key:
Showing posts with label Home-brew. Show all posts
Showing posts with label Home-brew. Show all posts
Thursday, February 26, 2015
Some improvements made to hacksaw blade key
I have now mounted my home-brew hacksaw blade Morse paddle on a steel base, added a nice red handle (made of insulating tape of course!) and fixed the spacing a bit so that it better meets my satisfaction. It's working well, although the spacing gave me some interesting problems during a QSO with PW0F on 40m CW, when it seemed to send random extra dits and dahs seemingly without input from me!! I would ideally like to tidy up the wiring a bit but it's largely complete and I've made a number of QSOs with it. Here's a QSO I had with a German operator in Dominican Republic using the newly-mounted key:
Labels:
blade,
contact,
CW,
Dominican Republic,
EI2KC,
hacksaw,
HI3/DL4NAC.,
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Home-brew,
key,
morse,
paddle,
photo,
QSO,
video
Wednesday, February 25, 2015
New (modified) home-brew hacksaw blade single-lever Morse paddle tested live with QSO on 30 metres
This is a video showing my new home-brew single-lever hacksaw blade Morse key in action. I decided to test it "live", with the webcam running, by CQing on the 30 metre band using 100 watts. First station into my log was DL0BZA. I enjoyed using the key. It has no weight, so holding it down is required during operation, which is not ideal. I have a couple of steel bases, one of which I hope to "stick" it to, in some way. The morse key is a modification of one which used a much smaller hacksaw blade. I also improved the contacts. I may make further modifications in order to get more use out of it.
The key was made with spare parts lying around the shack. The wooden base is off some old bookshelves. The contacts are nuts and bolts supported with eyelets - the type that you crimp onto your DC wires to connect to your power supply. The hacksaw blade required sanding because it was painted blue and a proper connection was not being made. Here are a couple of photos from the construction phase:
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| The new contacts were made from bits and pieces lying around the shack. |
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| The hacksaw blade during sanding. The eyelets are in place. |
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| The hacksaw blade being filed and sanded. |
Labels:
30 metres,
blade,
CW.,
demonstration,
EI2KC,
hacksaw,
Home-brew,
lever,
morse,
paddle,
QSO,
single,
spare parts
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