Tuesday, August 23, 2011

2010 Oceania DX Contest Certificate

As indicated from the Oceania DX Contest Committe that the certificates have been published on-line as pdf files for us to download. Today I download my certificate for reference. For sure, will participate again this year.

Tuesday, August 16, 2011

L-Match Antenna Tuner - Completed

Project completed. It become my daily use antenna tuner, very nice.
So far, so good.I have been able to match all my antenna up on the roof, and there is absolutely no signs of any component heating or arcing.

Saturday, August 13, 2011

LY2SA - #158 on Six Meter

LY2SA worked on 25 June 2011 at 0655z. Vidas returned me a nice QSL. Now my Six Meter Score going up to #158 - all confirmed.

Tuesday, August 9, 2011

L-Match Antenna Tuner

I always needed a "HEAVY DUTY" antenna tuner that could take about 2KW to match with my Heathkit SB-220. I have the Ten-Tec 238B which purchased many years ago, working fine without any problem. However, like to have another one connect to my second amplifier.

Since I have the 238B (L-Match) and thinking to use other tuning method. Finally I selected the modified "L-Match" network again for the reason that it has only two adjustable parts, one inductor and one capacitor, it make the tuning more easier.

The tuning capacitor is a Jennings 500pf vacuum capacitor and the roller induction is from Jonhson 229 series (10uH), it is more than enough because I do not operate low band much.

The case is from China, very nice and heavy duty, most important is very cheap. (around US$20 including shipping) and size is 110mm*275mm*250mm (H*W*L).

With some effort over the weekend, it is almost complete except for some hardware, like the tuning knob and extender rod for the antenna switch.

Tuning is very easy and all my antennas from 10M-40M.

Tuesday, August 2, 2011

KN-Q10A QRP Transceiver from BA6BF

Recently I bought a very nice QRP Transceiver ( KN-Q10A) from BA6BF.
It is a four band (80/40/20/15M) 15W CW/SSB gear, very nice collectable radio.