lf receive

31 links

Feeding an End-Fed Antenna - End-Fed antennas are NOT balanced systems; but neither are verticals, ground planes, discones, windoms, zepps, Marconis, half-slopers, et al. Additionally, the low-impedance antenna port of your transmitter/receiver is not balanced.
[ Hits: 21455 | Votes: 22 | Rating: 7.33 ]

Flags and Pennants - Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE
[ Hits: 2417 | Votes: 2 | Rating: 1.5 ]

NASA Online VLF Receiver ^pop - Hear VLF audio from NASA online VLF radio receiver in Huntsville, Alabama.
[ Hits: 26455 | Votes: 94 | Rating: 4.36 ]

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: 14069 | Votes: 111 | Rating: 6.7 ]

Kiwa Electronics - Kiwa Electronics is a company that specializes in accessory equipment for the radio enthusiast. Our products include Filter Modules to improve receiver performance, a High Performance Medium Wave Air Core Loop Antenna for improved broadcast band reception, the Pocket Loop Antenna, the Earth Monitor, BCB Rejection Filter and Broadband and SW Preamps. We also offer numerous performance upgrades for popular receivers.
[ Hits: 3067 | Votes: 5 | Rating: 8.8 ]

The Discovery of Radio Waves Heinrich Rudolf Hertz - Heinrich Hertz was the first to send and receive radio waves.
[ Hits: 256 | Votes: 0 | Rating: 0 ]

Frequency Calibration for Weak Signal Work - Accurate calibration of your receiver and sound card is necessary for good results with the weak signal modes in use at LF. Modern receivers with master oscillators that are synthesized to provide all conversion frequencies greatly simplify the process. This article describes a method of making the necessary measurements and adjustments to an ICOM R75 receiver and a sound card, using the ARGO software
[ Hits: 873 | Votes: 1 | Rating: 7 ]

A PC as VLF receiver - Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF
[ Hits: 852 | Votes: 1 | Rating: 8 ]

FT-1000D Why DX in Stereo - Yaesu's classic, top of the line HF transceiver for contesters and DXers is probably the only ham dual-receiver radio that does true diversity reception
[ Hits: 1170 | Votes: 2 | Rating: 5.5 ]

SWL Antenna Distribution System - a methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable.
[ Hits: 1385 | Votes: 2 | Rating: 6 ]

Natural Radio Listening: Streaming Audio - A page about fascinating Very Low Frequency and natural radio, with lots of streaming audio links from remote receivers. Some experimental stereo pairs around the world.
[ Hits: 2271 | Votes: 6 | Rating: 7.33 ]
Receive VLF natural radio with Spectrum Lab - Using Spectrum Lab for the reception of VLF natural radio
[ Hits: 401 | Votes: 3 | Rating: 9.33 ]

AMANDX - AMANDX is a site dedicated to the new listener. There are articles on antennas receivers etc.
[ Hits: 1932 | Votes: 7 | Rating: 8.57 ]

glfer - glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes
[ Hits: 1823 | Votes: 0 | Rating: 0 ]

Meet Jason - Jason is a keyboard mode displaying the received message as text. Expecially indicated for LF operations
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Signal Forensics - Signal Capture and Analysis Software for The Icom IC-R20, PCR Family of receivers and the Yaesu VR-5000 receiver.
[ Hits: 321 | Votes: 0 | Rating: 0 ]

W3LPL Receiving Bandpass Filters - Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT
[ Hits: 1082 | Votes: 0 | Rating: 0 ]

KI5YN QLF Filter - A microprocessor based interface designed to go between a standard Morse code key and a radio transmitter. The circuit receives a signal from the key, processes it, and re-transmits it to the radio.
[ Hits: 352 | Votes: 0 | Rating: 0 ]

QLF Filter - Microprocessor based interface designed receives a signal from a Morse key, processes it, and re-transmits it to the radio. A microprocessor in the circuit is pre-programmed with a proprietary algorithm which makes a number of measurements and adjustments to the less percise human generated code.
[ Hits: 373 | Votes: 0 | Rating: 0 ]

Track down television interference - Nearly half of all reception problems are due to deficiencies or faults in the television receiver, the aerial lead or the aerial. This article will help you to check whether the problem you are having is due to one of these causes.
[ Hits: 402 | Votes: 0 | Rating: 0 ]