Harry lythall
http://www.sm0vpo.altervista.org/tx/15w-pa.htm Webby Harry Lythall - SM0VPO Introduction It is quite easy to get a watt or more with very simple equipment, but to get more than 5 watts becomes a little more difficult. This article describes a 10 watt linear amplifier that is …
Harry lythall
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http://www.sm0vpo.altervista.org/info/about.htm WebBasic Concept. Similar to the system used in modern aviation where an antenna array modulates the phase of an incoming signal. The commercial system is known as Commutated Aerial Direction Finding (CADF) where a ring of 18 identical antennas are each switched on in sequence, just like winding a rotary switch round and round so that one …
Webby Harry Lythall (SM0VPO) This project was developed as a result of experiments to become QRV on 80 meters, again, using the little balcony of mine. I have now built several of these antennas with equal success every time. The frame antenna may not be the most efficient but it can get you QRV on 80 and is ideal for boats and holidays. Webby Harry Lythall - SM0VPO. Introduction. When I was a kid there were available ready-made coils for the hobbyist. Q-Max sold their business to DENCO (Clacton) in the early 60s, and I believe they stopped making them in the late 60s. Now these coils were fantastic. Denco produced RF antenna, oscillator and IF coils for superheterodyne receivers ...
http://www.sm0vpo.altervista.org/rx/df-00.htm Webby Harry Lythall (SM0VPO) This project was developed as a result of experiments to become QRV on 80 meters, again, using the little balcony of mine. I have now built …
http://sm0vpo.altervista.org/audio/mic_processor.htm
Webby Harry Lythall - SM0VPO. Introduction. A little while ago (about 6 years to be exact) the best antenna I had for 145MHz was the 1/4-wave mag-mount antenna on the roof of my car. So I decided I wanted a bit more gain. I was able to get more by using a pair of end-fed 1/2-wave antennas. This gave about +3.5dBd, which is about 6dB more than the ... introduction of wekaWebZN414 RECEIVERS by Harry Lythall - SM0VPO This is a project from the dim and distant past which has proved to be a real winner. I have used it as the basis for an 8 channel proportional R/C (AM) as well as a 145MHz FM "chat box". The receiver is very simple and is shown below. new nike mercurial bootshttp://www.sm0vpo.altervista.org/3d/denco_sub_01.htm introduction of welcome speechWebby Harry Lythall - SM0VPO. Introduction. Of all the projects that are published on my homepages, some of the most popular pages are the Radio Control (R/C) encoder and decoder ideas. I have not flown for many years and the desire to fly is getting strong, so I thought I would take a break and do something "fun". Make some new R/C equipment ... new nike nfl sweatshirtshttp://sm0vpo.altervista.org/tx/v5_tv.htm introduction of weavinghttp://www.hard-core-dx.com/nordicdx/antenna/loop/loop80m.html new nike nfl uniforms saintshttp://sm0vpo.altervista.org/blocks/if-txfmr_tube_00.htm introduction of weeds