sat frequency21 links
Antennas : Delta loop
- DL-Special DX Antenna - 2 Delta Loops in Phase
- Two Delta-Loops in phase. The purpose of this article is to propose an antenna with a high gain, a high efficiency and a very low price that is
easy to build for any frequency.
[ Hits: 669 | Votes: 2 | Rating: 9.00 ]
- Yagi Antenna Elements Boom Correction
- Dragoslav Dobricic, YU1AW antennex article on influence of Boom on frequency performance and how compensate it
[ Hits: 660 | Votes: 1 | Rating: 2.00 ]
- The Versatile Vee Beam
- An aerial that you can use on all eight High
Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 m to 10 m
[ Hits: 1399 | Votes: 2 | Rating: 10.00 ]
- ITU: Frequency Allocations
- Table of frequency allocations for Amateur and Amateur Satellite Service
[ Hits: 1984 | Votes: 1 | Rating: 2.00 ]
- How To Make A VO-52 SAT QSO Video
- Using a home made 10 element 435 & IO Loop for 145MHz, with a Yaesu FT-847. Simon - 2E0HTS, adjusts his (uplink) transmitted signal to correct the doppler of the Received (downlink) frequency.
[ Hits: 737 | Votes: 0 | Rating: 0.00 ]
- ASC Signal
- Global manufacturer of Satellite Earth Station, Air Traffic Control Radar Antenna and High Frequency Antenna products for broadcast, government and enterprise satellite communication applications.
[ Hits: 695 | Votes: 2 | Rating: 8.00 ]
- FMI provides superior solutions in the design and manufacture of frequency control devices including Voltage Controlled Temperature Compensated Crystal Oscillators (VCTCXO), voltage controlled crystal oscillator (VCXO), Temperature Compensated Crystal Oscillators (TCXO), crystal clock oscillators, high temperature oscillators, surface mount and crystal oscillator products, phase locked sources and more.
[ Hits: 388 | Votes: 0 | Rating: 0.00 ]
- Amateur satellite frequency guide
- Amateur Satellite Frequency Guide, Compiled December 1996
[ Hits: 2738 | Votes: 4 | Rating: 5.25 ]
- Space frequency listing
- Downlink frequencies for all kind of satellites
[ Hits: 738 | Votes: 4 | Rating: 4.00 ]
- USCG Navigation Center DGPS
- Differential Global Positioning Service (DGPS) is a land-based augmentation system that receives and processes signals from orbiting GPS satellites, calculates corrections from known positions and broadcasts these corrections via a Medium Frequency (MF) Transmitter to DGPS users in the Broadcast Site’s coverage area.
[ Hits: 1800 | Votes: 2 | Rating: 4.50 ]
- Low Frequency operations by W3EEE
- A squint at the world of LF
This website was initially thrown together to provide ready availability to data being collected from the measurement of a transatlantic LF (Low Frequency) path.
[ Hits: 334 | Votes: 0 | Rating: 0.00 ]
- Satellite Frequency list
- An old satellite frequency list from 3 to 8475 Mhz dated 1996
[ Hits: 6108 | Votes: 76 | Rating: 4.66 ]
- Digital satellites Frequency site
[ Hits: 4922 | Votes: 43 | Rating: 6.40 ]
- AMSAT : Satellite Operating Frequencies
- A comprehensive list of Ham Radio satellite frequency usage listed in order of frequency
[ Hits: 1539 | Votes: 8 | Rating: 4.00 ]
- How Satellite Doppler Tracking Works
- The Doppler Effect allows the distance between a satellite transmitting from space and a radio receiver on the ground to be measured by observing how the frequency received from the satellite transmitter changes as the satellite approaches, passes overhead, and moves away.
[ Hits: 311 | Votes: 3 | Rating: 4.67 ]
- Low cost frequency stabilisation
- The Icom IC-746 is quite a popular HF/VHF multimode transceiver which has one shortcoming in its standard configuration when used to operate modes requiring good medium-term frequency stability.
[ Hits: 1577 | Votes: 1 | Rating: 5.00 ]
- Dublin Frequencies
- Army, navy, police, ham frequency in Ireland and N. Ireland
[ Hits: 13462 | Votes: 192 | Rating: 4.03 ]
- Nova For Windows
- Real time tracking of an unlimited number of satellites, fast, accurate and easy to use. Automated FTP keps updates. Also support a great number of interface to control rotors azimuth and elevation plus frequency doppler shift.
[ Hits: 26773 | Votes: 60 | Rating: 5.56 ]
- HalloSat AO-40 Special Edition
- Freeware Tracking Program for AO-40.Based on Windows timesetting, thus automatic switching between normal and daylight saving time. Preview listings with a view to the passband schedule, to the squint angle and elevation. Integrated frequency calculation for transmit frequency (uplink) depending on receive frequency (downlink) with a view to dopplershift. CAT – Control for all Icom – Transceivers without IC-821.
[ Hits: 1866 | Votes: 1 | Rating: 10.00 ]
- Frequency Response Plotter
- Draw static response time of an audio system. Originally intended for loudspeakers tests, is also a great tool for looking at microphone equalisation.
[ Hits: 708 | Votes: 2 | Rating: 8.50 ]
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