hf online
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Antennas : VHF UHF- VHF/UHF Yagi Antenna Design
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- Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
[ Hits: 147387 | Votes: 1105 | Rating: 6.95 ]
- 7QNL Log Online
- log search for 7QNL
[ Hits: 403 | Votes: 1 | Rating: 2 ]
- Badger Contesters Online
- The Badger Contesters is a club of like-minded hams who are interested in VHF/UHF/SHF weak signal communications. Our geographic focus is Wisconsin, however hams in Northern Illinois, Michigan's UP, and Eastern Minnesota are welcome to join us.
[ Hits: 401 | Votes: 2 | Rating: 9 ]
- The Art & Skill of Radio-Telegraphy
- A freware book on learning morse-code. The Art & Skill of Radio-Telegraphy Third Revised Edition by William G. Pierpont N0HFF, online version available in multiple languages
[ Hits: 1874 | Votes: 3 | Rating: 8 ]
- HA8TKS
- Home page with nice DX Tools, VHF DX Cluster map, QRB calculator and personal online log-book
[ Hits: 271 | Votes: 2 | Rating: 9.5 ]
- Ukrainian HF portal
- Ukrainian radioamateur on HF: DX News, Contesting, Propagation, Conference, Photo, Radioamateur Map, Online Logs etc.
[ Hits: 563 | Votes: 130 | Rating: 9.05 ]
- VR2HF Online Yaesu FT-817
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- Online Yaesu FT-817 transceiver (receive only over the Net) using R.A.T.S. control software and MS Netmeeting for program access and audio. Asia's first online receiver, first online FT-817, and worlds first full-featured online receiver (operates just like a desktop radio including audio encoding time of less than 1 second). Operating from a flat in Kowloon, Hong Kong. Open to all.
[ Hits: 46869 | Votes: 220 | Rating: 4.58 ]
- Kenwood TS50 web control
- This is an academical project to control my TS50 from the web.You can of course listen live real time audio. It is not 24 hours/day ONLINE, but click on the link to know if its connected.
[ Hits: 9030 | Votes: 31 | Rating: 5.8 ]
- HB9FX Internet Remote Base JN37XH Hochwacht Zofingen Switzerland
- Online web receiver powered by OpenWebRX based in Switzerland. You can isten between 10kHz - 10GHz frequencies. Receiver is operated by HB9BHU
Rig VLF/HF/VHF: Airspy HF+, Magnetic Loop/Discone
Rig SHF X-Band LNB, RTL-SDR, Stacked Slot Antenna
[ Hits: 14051 | Votes: 111 | Rating: 6.7 ]
- Amidon Baluns
- HF baluns by amidon.de with online shop
[ Hits: 2538 | Votes: 2 | Rating: 5.5 ]
- ITU CIRAF zones maps
- Online CIRAF zone maps by ITU
[ Hits: 2348 | Votes: 9 | Rating: 7.78 ]
- Azimuthal Equidistant Projection
- Online map creation using AZ_PROJ
[ Hits: 2417 | Votes: 7 | Rating: 6 ]
- HF Propagational Resources
- Create Online Maps, Check Forcasts and Conditions, more features being added each month, by hfradio.org
[ Hits: 7075 | Votes: 177 | Rating: 8.66 ]
- ACOM 1000 by PA3HGT
- A nice review of the Acom 1000 HF and 6 meter RFpower amplifier by Acom in Dutch and with online google translation available. Includes pictures and notes of the popular amplifier by Acom.
[ Hits: 557 | Votes: 2 | Rating: 5.5 ]
- Outbacker Antenna shop
- Outbacker HF Mobile Antenna from Down-Under, Old Fashioned Service in secure online shopping
[ Hits: 1463 | Votes: 3 | Rating: 3 ]
- EA3GCY Radio Kits
- Amateur radio kits online shop, includes Mini Touch Key, QRP HF SSB and CW transceiver kits
[ Hits: 589 | Votes: 0 | Rating: 0 ]
- Universal Radio
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- Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories
[ Hits: 30224 | Votes: 34 | Rating: 7.02 ]
- HF Beam Calculator
- A javascipt online calculator for 2 and 3 element beam antennas.
Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL
[ Hits: 3437 | Votes: 27 | Rating: 5.45 ]
- Proppy Online HF Propagation Prediction
- Proppy: Online HF propagation predictions using the ITU Recommendation P.533-13 Propagation Prediction Application.
[ Hits: 2160 | Votes: 14 | Rating: 9.65 ]
- RW3AZ VHF amplifiers page
- 2m/70cm GS31B Power amplifier pictures
[ Hits: 1306 | Votes: 4 | Rating: 7.75 ]
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