Experimental receiver for VLF. I received electromagnetic (radio) signals between 14 and 22 KHz with a capacitor of 4,7 NF over the showed coil. The schematic is identical to that of the storm detector IV (with the 6088 Tube), the coil is differently constructed. There is one more transistor...

It’s the Field Day Special! Join us as we visit with the Jackson Amateur Radio Club and learn all about Field Day. Plus we’ve got two unique AmateurLogic spins on Field Day… Jim’s poolside station set up is educational and entertaining. George’s station uses a unique power...

Slow Scan TV using my Yaesu FT-847 on 14.230Mhz (20 Meter Band) Although we can now send pictures via more...e-mail, What Fun it is to send and receive them via Radio with the Only thing between you and the other person is the Air we breath!! :-) SSTV is a method of Sending and Receiving...

This is a short video of Phil/N0KE in DM69 working me in the rover in EN32 during the June ARRL VHF QSO Part on 14 June 2009. It was quite a surprise for me at 862 miles.

Video shows how conditions were this morning on 18 June 2009 on 144 MHz and above. Jim/W4ZRZ opened up the band out of EM63 Alabama to the northeast. We quickly worked thru 432 then 222 MHz and then the surprise on 1.2 GHz on Voice.

A Qso with George G3BNE on 144Mhz upper sideband using my Trio Ts-700 2m all mode transceiver.

Steve Galchutt brought this version of the "spud gun" (Pneumatic Launcher) to our Colorado QRP Club meeting. It was built for him by his friend John Evans (N0HJ) as described in the March '09 issue of the American Radio Relay League's QST publication. Amateur radio operators use all kinds of...

Colorado climb many of Colorado\'s 14000-foot mountains to set up amateur radio stations in an effort to communicate with other radio amateurs across the state and around the world every second Sunday in August. This video is about N0B\'s adventure up Mt Humboldt (14065ft)...

Trailer for the upcoming first North american Summits on the air multi area multi activation

This is one of my 144Mhz Mosfet amplifiers with Freescale MRF6VP2600H. This is a 49V Ldmosfet amplifier for 144Mhz which easily puts out 500 Watt in linear service. The amplifier exhibits a gain of around 20dB and noteable gain compression sets in above 500 Watts of output power. Not shown in...