Tag Archive for Antennas

Godzilla? A full size, 3-element Yagi on 160m

Three workers on the boom

7J4AAL in Japan is now sporting the largest Yagi currently in use on 160 meters – a full-size, 3-element monster atop a rotating 200-ft (60m) tower. The previous Largest 160m Yagi was at OH8X but a winter storm put the tower and antennas on the ground in December 2013. The same tower also supported an…

“Not for sale in the US”

SARK110

I’ve hesitated upgrading from my very old MFJ antenna analyzer due to the fact that other analyzers seem over-priced for what they offer. Finally, from Spain, the SARK-110 – yet unavailable in the US due (I think) to patent issues. Hopefully those matters will get resolved to allow sales here. Features include (from their website):…

Video: Antenna view via quadcopter

494

I recently added a GoPro Hero camera to my DJI Phantom quadcopter and have been having a lot of fun with it. Two co-workers enjoyed test flights with the combo so much that they now also have similar set-ups. A trip to San Antonio this past weekend was too busy to allow me to over-fly…

Two sources of pneumatic antenna launchers

akbiocca

I saw my first pneumatic antenna launcher in use years ago in Stamford, Connecticut. Preparations were being made for Field Day and someone there had a contraption that I later would realize was of the same design as those now available from AKBiocca. The thing worked great, easily getting a line over very tall pine…

Now QRV on 160 meters

160mTantenna

After conferring with some Topband experts I decided to do what I knew was best regarding my two antenna options – a vertical of some sort or an extension of my 80m dipole. A diagram in this month’s (November) QST also nudged me in the right direction by showing me just how simple it would be…