tech
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Antennas : Baluns- How to Make a Great 9:1 RX Transformer
- There are lots of good designs for matching transformers for receiving antennas. Make it yourself it's cheap and easy, and very high performance. This is the design used in the TRX-9 transformers.
[ Hits: 3142 | Votes: 0 | Rating: 0 ]
- G5RV antenna project by F5JTZ
- Yet another G5RV antenna plan to build a G5RV Antenna for 80 to 10 meters usage
[ Hits: 2249 | Votes: 3 | Rating: 10 ]
- Beverages on 40 Meters
- Gary Breed, K9AY experience with beverages on 40 meters
[ Hits: 2739 | Votes: 2 | Rating: 3.5 ]
- HF insulation, the pitfalls
- Although insulation may seem relatively insignificant in the larger picture, on it depends the quality of your performance on air and how long you will be communicating for.
[ Hits: 540 | Votes: 0 | Rating: 0 ]
- Matching Waves, VSWR at work
- When the radiation resistance (voltage to current ratio) of an antenna is the same value as the characteristic impedance of the transmission line (voltage to current ratio in the line), all of the electrical energy transmitted down the line is taken by the antenna and radiated into space in the form of a radio wave.
[ Hits: 507 | Votes: 0 | Rating: 0 ]
- AL7LE Moose Horn Amateur Radio Club
- Dedicated to the art of Ham Radio, enhancing individual operational and technical skills as well as providing communications during local and national emergencies. Located on the Kenai Peninsula in South Central Alaska.
[ Hits: 527 | Votes: 1 | Rating: 9 ]
- W2SZ Rensselaer Polytechnic Institute
- The Amateur Radio Club of Rensselaer Polytechnic Institute
[ Hits: 263 | Votes: 0 | Rating: 0 ]
- YouTube - DL0DTV Digital ATV
- Digital amateur tv and mobile transmitting around Friedrichshafen and Lake Konstanz to be seen in Hall A. Heinz DC6MR is presenting the news, novelties and technical aspects of DATV.
[ Hits: 1095 | Votes: 0 | Rating: 0 ]
- Photovoltech
- Solar panel manufacturer based in Belgium
[ Hits: 712 | Votes: 0 | Rating: 0 ]
- Astrodyne
- Dedicated to the design, manufacturing, technical support, and delivery of innovative and cost effective power solutions for worldwide applications. AC/DC switching power supplies and DC/DC converters.
[ Hits: 684 | Votes: 0 | Rating: 0 ]
- Sommerkamp FT 250 review
- Sommerkamp FT 250 Shortwave Transceiver (YAESU FT 200)
[ Hits: 661 | Votes: 0 | Rating: 0 ]
- Ham Radio Deals
- Dealer for Alpha Delta hf antennas, switeches, Outbacker and super antennas, morse code keys, coax cable and military products, managed by W8GEG from Medina Ohio
[ Hits: 933 | Votes: 5 | Rating: 9 ]
- MAAS Funk-Elektronik
- Amateur radio shop based in germany, major supplier of wireless technology for ALINCO, Kenwood and ICOM.
[ Hits: 3036 | Votes: 4 | Rating: 5.5 ]
- Vapex technology
- Batteries, control batteries, chargers online shop
[ Hits: 634 | Votes: 1 | Rating: 1 ]
- Barnabus Communications
- UK distributor for AEA Technolgy Inc products and ICOM commercial transceivers
[ Hits: 561 | Votes: 1 | Rating: 10 ]
- A Rugged compact attenuator
- This attenuator is worth your attention. Built like the proverbial brick outhouse, it's one you can easily duplicate by N9SFX Pdf file
[ Hits: 2430 | Votes: 2 | Rating: 8 ]
- Attenuators and Preamps
- How to get the most from attenuators and preamps
[ Hits: 2217 | Votes: 3 | Rating: 3 ]
- Making the right connection
- The humble connector plays a very important role in the communications chain. It can make or break your system - and often does.
[ Hits: 674 | Votes: 0 | Rating: 0 ]
- Lightning Detector
- A project to homebrew a Lightning Detector
[ Hits: 852 | Votes: 1 | Rating: 10 ]
- Batlabs
- Motorola two way systems technical documents
[ Hits: 1131 | Votes: 3 | Rating: 6 ]
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