signal

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Search Results for "signal"

460 links - and 11 categories

Antennas : Theory
  • Interference Cancelling System - The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
    [ Hits: 1674 | Votes: 1 | Rating: 3.00 ]
Manufacturers : Accessories
  • TX RX Systems Inc - TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.
    [ Hits: 1462 | Votes: 5 | Rating: 4.00 ]
  • Communications Specialists Inc. - Manufacturers quality tone signaling, wildlife telemetry,avionics equipment,video transmision modems.
    [ Hits: 407 | Votes: 0 | Rating: 0.00 ]
  • CW Buffer, Amplifier & Preamp Sequencer - The AMPSEQUENCER board is an advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY and Pre-Amplifier proper sequencing
    [ Hits: 1109 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas : HF : Active antennas
  • Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
    [ Hits: 1963 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Time
  • VLF Time Broadcasts - VLF Time Signal Stations, Station List Compiled by William Hepburn, LWCA
    [ Hits: 160 | Votes: 0 | Rating: 0.00 ]
Operating Modes : EME
  • Weak Signal VHF by Tim Marek - K7XC - A complete guide to operating the weak signal modes on VHF/UHF/Microwaves. VHF Contesting honor role for the western states, rover, eme basics and vhf contesting.
    [ Hits: 1018 | Votes: 2 | Rating: 10.00 ]
Operating Modes : GPS
  • 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: 1785 | Votes: 2 | Rating: 4.50 ]
Propagation : Resources
  • G7IZU Radio Reflection Detection Page - Meteor Shower, Aurora, Sporadic-E and Solar Flares detected using Radio Signal Reflection, by Andy Smith, G7IZU. Live waterfall displays from three receivers, live Es propagation maps.
    [ Hits: 686 | Votes: 6 | Rating: 8.33 ]
Publications : Manuals
  • CES Product Manuals - CES Wireless Technologies is a world leader in the design, manufacture and implementation of Wireless Signalling products - Including GPS, AVL, MDT's, Mobile Data Terminals, CTCSS, and Microphones
    [ Hits: 467 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Transceivers : Kenwood TS-950SDX
  • Kenwood TS-950S RF gain mod - The Kenwood TS-950S and TS-950SD HF transceivers are fine radios. However, many, if not all, of them were produced with a design flaw which allows the RG GAIN control to cease function in the presence of a strong signal IF the AGC has been turned OFF
    [ Hits: 1376 | Votes: 1 | Rating: 1.00 ]
Radio Scanning : Nature Shortwave Radio : Numbers stations
  • Short Wave Espionage - Here you can access the book "Secret Signals, The Euronumbers Mystery" which was written in 1991 and is now out of print. Lot's of information on spionage and numbers stations
    [ Hits: 1629 | Votes: 3 | Rating: 10.00 ]
  • Covert Comms Archive - Covert Comms was a monthly column wrote for the ACE newsletter from 1997 to 2002. The column was devoted to numbers stations, unidentified signals, intelligence information, and other related information
    [ Hits: 1269 | Votes: 3 | Rating: 9.33 ]
Software : Morse Code Training
  • mvLearning - Educational software for Palm Pilot and Windows that quickly teaches Signal Flags and Morse Code using mnemonic techniques and a well designed flashcard program
    [ Hits: 764 | Votes: 1 | Rating: 1.00 ]
Software : Oscilloscope
  • Virtins Technology - Offer PC based virtual instrument for electronics enthusiasts, students and professionals, including full-fledged sound card real time Oscilloscope, Spectrum Analyzer and Signal Generator.
    [ Hits: 11132 | Votes: 10 | Rating: 9.20 ]
  • Cobracom  pop - Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc...) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveform and as Digital-to-analog Converter for the signal generator. True 24 bit adc/dac 48K/96k/192k sampes/sec.
    [ Hits: 19222 | Votes: 8 | Rating: 5.37 ]
Technical Reference : Preamplifiers Technical Reference : Radio Direction Finding
  • The Fox - 750 mw transmitter - This RDF three transistor 144 MHz transmitter uses a 48 MHz scanner crystal as an oscillator / tripler. A second transistor boosts the signal to 40 milliwatts, a third amplifies the power output to 750 milliwatts. Includes schematic and pictures.
    [ Hits: 221 | Votes: 2 | Rating: 5.50 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
  • Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.
    [ Hits: 7404 | Votes: 5 | Rating: 4.00 ]
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