432 MHz EME with a small antenna
by Andreas Haefner, DJ3JJ
A lot of people would like to do EME but think they need a big antenna for this. In this article I show how to build up a small but competitive EME antenna and what is important to be successful with a small station.
1. The max. possible boom length that works without mechanical support and ended up at 3.4m (4.9wl) with a 20 mm x 20 mm x 1.5mm boom.
2. Solid aluminium elements with diameter of 6mm to reduce wind load and allow easy screw fixing.
3. Elements mounted on top of the boom with commercial element holders.
4. Z = 50 Ohm to use an easy to build straight dipole.
5. Symmetrical dipole made from ½ inch cellflex cable.
Read full article:
The June Edition of Digital QST is now available at http://www.nxtbook.com/nxtbooks/arrl/qst_201506/This is our annual ARRL Field Day issue and... Read more
The CD-45II handles 8.5 sq. feet mounted inside a tower, or 5 sq. ft. with mast adapter. Low temperature grease good to -30 F degrees. Bell rotator de... Read more
DX Engineering DXE-UT-KIT4 Complete Coax Cable Tool Kits are cost-saving tool kits contained in a handsome, convenient carrying case. They are designe... Read more
The linear amplifier HF2013DX-A is designed for all shortwave bands from 1.8MHz to 29MHz amateur (including WARC) and all operating modes. It is equip... Read more
by MIKE WATSON “ A Blenheim amateur radio enthusiast is among a worldwide network of radio hams helping keep the airwaves clear for emerg... Read more
Baofeng DM-5R Radioddity has updated the DM-5R listing with this cryptic note about Tier II support: “Support DMR repeater function (DMR Tier I;... Read more
QYT KT-UV980 UHF VHF Mobile Radio Specifications: Model: KT-UV980 This product has the function of the new development menu Personalized design oper... Read more
Ham Nation 184: A Cold Day in Hell, Michigan Hosts: Gordon West (WB6NOA), George Thomas (W5JDX), Don Wilbanks (AE5DW), Valerie Hotzfeld (NV9L) and Ama... Read more
Tape Measure Yagi Beam Antenna Parts List 1 25 foot 1 inch wide steel tape measure 1 10 foot piece of 3/4 inch Schedule 40 PVC Tube 2 3/4 inch... Read more
“If you already have a TQSL callsign certificate on your existing computer, this is for you. Do not request a new certificate from the Raspberry... Read more
Spectrum Dynamic Waterfall Display Multiple Working Modes: Receive Mode, Transmit Mode, TUNE Mode, VFO Mode, SPLIT Mode DSP Digital Signal Processing... Read more
Scandinavian Activity Contest Rules 2016 Scandinavian Activity Contest Rules 2016 Rules for all participants 1. Aim of the contest The a... Read more
By Ben Meiklejohn Staff Writer BIDDEFORD – A federally licensed amateur radio operator said he plans to sue the city for harassment in regards to a ra... Read more
George Thomas, W5JDX, of Ham Nation and AmateurLogic.tv provides an in depth review of the Icom IC-9100 Read more
AAVoice v1.4.6 A digital voice processor for amateur radio operators. It uses prepared wav-files for transmission. If necessary you can use sim... Read more