Sunday, September 27, 2009

Laser pointer driver

Wednesday, September 23, 2009

Thursday, September 17, 2009

Sunday, September 13, 2009

Ladder line feeded all band doublet

Here's my new all band antenna. It's a classic 80m half wave dipole fed by ladder line.
Antenna is about 5 meters over concrete roof. Nevertheless I've got quite good reports on all bands. On 80m I guess it works as NVIS antenna (cloud warmer) - today I've got 59/SSB solid report on 80m from station which is 250km away.

The ladder line is home made - idea is taken from here. For longer lines (more than 20-30 meters) I recommend to consider Frits' PA0FRI variant.

Tuner is z-match. (Frank PA0FBK also has very nice 2m/70cm antenna on the same page). I added perfect tool to this tuner - Phil's AD5X SWR indicator. It's very convenient tuning aid and safety tool for your finals!

What a mess!!! First tests you know :-) Must clean up this later somehow...

CU on all bands!
73 (72) de Zilvis, LY2SS

Friday, September 11, 2009

Tuesday, September 8, 2009

Sunday, September 6, 2009

Friday, September 4, 2009