frequency543 links - and 9 categories
Antennas : 80M
- 80 Meter Pizza Pan Antenna
- This is a resonant, half-wave, vertical antenna. It takes up little space in the back yard, was designed for operation on a single frequency 80 meter PSK net, and is reasonably inexpensive to construct by Chuck Hines, K6QKL
[ Hits: 3500 | Votes: 3 | Rating: 5.00 ]
- Antenna Measurements
- The electrical characteristics of an antenna that are of interest to obtain by direct measurement are the frequency at which the antenna is tuned, the gain and radiation pattern
[ Hits: 749 | Votes: 3 | Rating: 4.00 ]
- Azimuth Radiation Patterns
- Below VHF the change in the radiation characteristics of an antenna will change considerably from frequency to frequency, making antenna selection more complicated.
[ Hits: 718 | Votes: 1 | Rating: 10.00 ]
- SARL Beacon Project on 40 Meters
- The beacon project is a South Africa national system of beacons on the 40 meter band operating on a single frequency
[ Hits: 662 | Votes: 0 | Rating: 0.00 ]
- VA3GRR - Radio Beacon
- VA3GRR is a radio beacon, operating on the 10 meter amateur band. Its frequency is 28.205.5 MHz. It runs just under 5 watts of power into a vertical half-wave ringo style antenna
[ Hits: 322 | Votes: 1 | Rating: 10.00 ]
- High Frequency Expermental Beacon "WV". The Beacon operates on the frequency of 13.55567mhz. This Beacon is very low power. It operates under Part 15 of the FCC Rules and Regulations. It transmits with only 1.5 milliwatts of power
[ Hits: 286 | Votes: 0 | Rating: 0.00 ]
- K9ZW Blog
- With Varying Frequency - Amateur Radio Ponderings
[ Hits: 238 | Votes: 0 | Rating: 0.00 ]
- Yuba Sutter Colusa Tri-County Online Public Safety Scanner
- The Yuba-Sutter area's only known online public safety scanner, supporting agencies in Yuba, Sutter and Colusa Counties. Alpha-numeric support for frequency identification with the use of Winamp or iTunes media players.
[ Hits: 1477 | Votes: 6 | Rating: 4.50 ]
- Keithley Instruments Inc.
- Digital multimeters, power supplies, frequency counters, RF analyzers, signal generators
[ Hits: 503 | Votes: 0 | Rating: 0.00 ]
- Phase Matrix
- Frequency Counter w/Selective Power Measurement, Microwave Sythesized Signal Generator
[ Hits: 268 | Votes: 1 | Rating: 10.00 ]
- EADS North America Defense Test
- Digital multimeters and frequency counters.
[ Hits: 283 | Votes: 0 | Rating: 0.00 ]
- Tabor Electronics
- Tabor electronics produces high-end function generator, universal counters/timers, synthesizers, pulse, function and arbitrary waveform. Frequency counters
[ Hits: 294 | Votes: 0 | Rating: 0.00 ]
- Signal Forge
- The signal forge 1000 signal generator is a portable, high-performance digital and rf signal source with a 1 ghz frequency range. features include digital, differential and ac coupled outputs
[ Hits: 477 | Votes: 0 | Rating: 0.00 ]
- Allocation of Radio Spectrum
- This is the table of contents to a list showing how the radio frequency spectrum is allocated to different users in the United States.
[ Hits: 1237 | Votes: 1 | Rating: 6.00 ]
- New England Historical Radio Society
- The New England Historical Radio Society Inc. is an organization dedicated to the preservation of commercial Morse Radiotelegraphy on medium and high frequency.
[ Hits: 368 | Votes: 0 | Rating: 0.00 ]
- Radio Frequency Beacon Finder
- This project is a radio frequency receiver that will help the user the trace the direction and distance of transmitter beacon(s) operating at 433MHz frequency by Cornell Univerity
[ Hits: 1399 | Votes: 6 | Rating: 5.00 ]
- The KA7OEI FT-817 pages
- FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range
[ Hits: 831 | Votes: 0 | Rating: 0.00 ]
- Tone Sound Frequency Sweep Generator
- Generating of up to eight independent oscillatory processes per each channel with separate frequency, initial phase and amplitude controls.
[ Hits: 7328 | Votes: 17 | Rating: 5.47 ]
- SigJenny turns your PC into a flexible and powerful audio signal generator for free.
It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!
[ Hits: 16105 | Votes: 13 | Rating: 6.85 ]
- TVi Basics - making filters
- TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
[ Hits: 856 | Votes: 0 | Rating: 0.00 ]
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