Author Archives: oh2gqc

80-Meter Magnetic Loop Antenna

No rain today so I finally managed to raise my 80 meter mg-loop  to an upright position. Circumfence 8 meters Diameter about 2,5 meters Tube diameter 30 mm Faraday type feed loop made out of coax cable Vacuum variable capacitor … Continue reading

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Cushcraft R7 vertical back in service

This is my good old Cushcraft R7 vertical. I got this second hand some 10 years ago. It has now been unused for a couple of years until this spring I decided to give it a go agein. Unfortunately it … Continue reading

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KPA100 Assembly

CAT control via RS232 works fine with ‘real’ serial cable. Does not work with ‘brand QWERTY’ USB to serial adapter. With this new converter CAT works just fine. This completes the PA100 assembly and test. Now off to work some … Continue reading

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KPA100 Part inventory completed

All the required parts are included as is common with Elecraft  kits. Most parts I have put into small bags by component values. Having parts sorted out this way makes assembly easier. If I run out of some capacitor value … Continue reading

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New Ham project

While age I ordered the KPA100 PA -kit for my Elecraft K2. I never got around to building it until now when I want to computer control the K2.  KPA100 kit also includes the KIO2 feature which enabes computer control … Continue reading

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My new pride and [j|t]oy

Here it is, my new toy, the Icom IC-7300 HF transceiver. This is a very nice rig indeed. I’m not going to repeat all the feratures it has as many reviews of this baby can be found on the Internet … Continue reading

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Fitting a round peg into a round hole

How hard can it be? Well, the reflex-tube’s diameter is larger than it’s hole in the cabinet. So some filing… …and sandpapering ( is that a word ? ) … …was required for a snug fit. Next up: Putting it … Continue reading

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Spiders have multiplied!

Today I have been productive. All four filters are now glued and soldered together. Each filter was tested as well:

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Ugly spider

The crossover filter now looks much like some gastly mutated spider. All these wires are required because of the mid- and higrange control switches. I really should have designed a prited circuit board for the filter… Ugly as ig may … Continue reading

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The Crossover Filter

Here is the first crossover filter assembled on a piece of cardboard with ample amount of hotglue. Initial test of filter usign a 1,5 volt battery as signal source.

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