Amateur Radio Amplifier Antenna CW DX
The Band Decoder for the 6 to 1 Antenna Switch is working now very well. QSYing is easy going now!
I wrote a new code and uploaded it into the Arduino NANO to fit it all my needs.
Click here for more information …
After trying some different input circuits the conclusion was a series tuned circuit, with a 1 turn
link coupling. The coil is 3 turns with ~3/8 id. The coupling loop is about halfway meshed.
I found it at the project “2m AMP with 4CX800A by NU8I”
The amplifier will be tested in the upcoming DARC VHF UHF Microwaves contest next month.
*** NEW schematic of the RF-Deck and picture of the Cavity *** click here
I am working at the cavity to improve the input. Because of high SWR I made some experiments
with the input circuit.
After testing the new input circuit I will show the results here.
This year my lovely wife (Heike, DL3HD) and I (Chris, DL2MDU) had a wonderful vacation in the Wild West of the USA.
On our way from San Diego to San Francisco we had the plan to visit ELECRAFT at Watsonville. Long before that idea
arose I met Eric, WA6HHQ on the Hamradio (Hamfest at Friedrichshafen, Lake Constance Germany) I have asked if it
would be possible to visit ELECRAFT at Watsonville and he said “Sure, call us a few days before and we can manage that”.
That made me very happy.
We had two nights at Best Western Rose Garden Inn in Watsonville. A good place to relaxe and have a bath in the
Ocean. The beach was really nice. The Ocean wasn’t
On the other day we had an appointment with David, KG6IRW at ELECRAFT to see the place of birth of many products.
David took us on a tour and explained the different stages of adjusting and burning in procedures of modules for the K3S,
KX3, KX2, KPA500 etc.
That was so interesting and we were pleased to made this way to ELECRAFT. Thank You very much!
A few years ago I have built a Z-Match tuner for QRO. I like antennas fed with open feeder and the priceless advantage
of low less in the feeding line. Continue …
Today I started assembling the new K3S Transceiver from ELECRAFT. I used a K3/100 since 2013 on Holidays. In April 2013 I have bought a K3/100 as a kit. Assembling was easy. Performance is outstanding. That was a good reason to buy the new K3S for the shack as a kit again. Since 2009 an Icom 756 PRO III is doing a great Job and therefore I am not in a hurry. It took me 4 hours to pass the Front Panel Assembly Procedure.
DL3HD, Heike & DL2MDU, Chris have been on the Island of Boa Vista (Cape Verde) IOTA AF-086. D44TUQ & D44TUK were operating without an amplifier and therefore just CW and RTTY has been used. The vacation was wonderful and the condxs were fair to good. We were lucky with our bungalow as well as to have the ability to setup our inverted-Vee dipole. While Heike was enjoying digital modes, Chris was playing his favorite mode (CW). After 14 days holiday-style operation we had more than 4600 QSO in our log. We had fun and could get more experience with pileups and band conditions. Now we have uploaded the logs to LotW and ordered the QSL cards. Click here for a video
