frequency544 links - and 9 categories
Antennas : Receiving
- Another Approach to Active Antennas
- Active antenna with a frequency response that is flat from 5kHz to over 30MHz
[ Hits: 3723 | Votes: 1 | Rating: 6.00 ]
- Arizona Spectrum Management Association
- This is the site for the Arizona Spectrum Management Association. This group is a frequency coordination group for the Arizona and the Tri-State Area
[ Hits: 219 | Votes: 2 | Rating: 1.00 ]
- Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.
[ Hits: 253 | Votes: 0 | Rating: 0.00 ]
- Shortwave Frequency Guide
- Frequency list with service name and related comments
[ Hits: 1172 | Votes: 1 | Rating: 1.00 ]
- AMSAT : Satellite Operating Frequencies
- A comprehensive list of Ham Radio satellite frequency usage listed in order of frequency
[ Hits: 1540 | Votes: 8 | Rating: 4.00 ]
- An MFSKMulti-Frequency Shift keying DX Mode. A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.
[ Hits: 246 | Votes: 0 | Rating: 0.00 ]
- IC-7000 Expand TX
- MARS CAP Modification to extend transmit frequency coveragefor the IC-7000
[ Hits: 4602 | Votes: 21 | Rating: 3.19 ]
- FT-450 Mars Mods
- Mars Mod for Yaesu FT-450 extending frequency range: 1.8-30 MHz
[ Hits: 7417 | Votes: 15 | Rating: 4.40 ]
- PorkControl for Yaesu FT-817ND
- PorkControl is a Java-based software controller for the Yaesu FT-817ND (and older FT-817) HAM transceiver. It is currently in beta and released under the GNU GPL v2 on Windows, Linux and MAC OSX. PorkControl is used to control frequency and other features without using the fiddly controls on the unit itself. It also supports automatic radio control to access repeaters based on the UK Repeater List.
[ Hits: 2215 | Votes: 1 | Rating: 8.00 ]
- Yaesu 857 and 897 Extending frequency coverage
- How to extend frequency coverage for Yaesu FT 857 and 897 in italian by HB9TQF
[ Hits: 5107 | Votes: 6 | Rating: 5.67 ]
- Yaesu VX170 Mod
- Extend VX-170 frequency range on Yaesu VX-170
[ Hits: 654 | Votes: 1 | Rating: 5.00 ]
- LCD Digital Dial DDS VFO
- Low Cost frequency counters and DDS VFO's for QRP and Vintage Radio's. LCD Digital Display, Frequency Counter or DDS VFO
[ Hits: 683 | Votes: 2 | Rating: 5.50 ]
- Microwave Antenna Design Calculator
- Available to run on all major operating systems, this free calculator provides quick estimation of antenna size required for a given gain and frequency.
[ Hits: 1112 | Votes: 3 | Rating: 7.33 ]
- SimJT is a simulation program. It generates audio-frequency JT65 and CW signals in a background of gaussian white noise, with user-specified signal-to-noise ratio.
[ Hits: 2499 | Votes: 2 | Rating: 1.50 ]
- Resonant Frequency Calculator
- This web based application will compute circuit values required for an L-C circuit to resonate at given frequency. Also it will compute the resonant frequency if given values for L and C.
[ Hits: 1599 | Votes: 7 | Rating: 5.57 ]
- Universal frequency counter & voltage meter
- to be used with QRP transceivers
[ Hits: 1233 | Votes: 1 | Rating: 10.00 ]
- Frequency Locked Loop VFO for HF
- A device which joins in a single microprocessor a digital programmable frequency meter and a control logic capable to lock a manually tuned VFO to its actual frequency by IK3OIL
[ Hits: 1504 | Votes: 4 | Rating: 7.75 ]
- 75 meter AM Transceiver
- Frequency coverage: 3.75 MHz to 4.00 MH transceiver for 75 MHz band
[ Hits: 1011 | Votes: 1 | Rating: 10.00 ]
- Beware: RF Safety Considerations!
- RF Safety reource page with links and more documentation on radio frequency safety
[ Hits: 277 | Votes: 0 | Rating: 0.00 ]
- FCC OET -- Radio Frequency Safety
- FCC Policy on Human Exposure to Radiofrequency Electromagnetic Fields
[ Hits: 248 | Votes: 0 | Rating: 0.00 ]
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