• Category Archives General
  • 2M Amplifier “On The Air” again

    Posted on by Chris

    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 Input Circuit
    New Input Circuit

    *** NEW schematic of the RF-Deck and picture of the Cavity ***  click here


  • Visiting ELECRAFT in California

    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!


  • ELECRAFT K3S – HF Transceiver

    Posted on by Chris

    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.



  • D44TUK & D44TUQ – Boa Vista Is. (Cape Verde)

    Posted on by Chris

    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