phase shift noise cancel

Flags and Pennants - Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE

160/80m Coaxial Receiving Loop Antennas  ^pop - Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.

Low Noise Antenna Connection - Reducing noise to your antenna can gain your aerial performance, learn how.

Receiving loop for long waves - Cancelling out unwanted noise sources by DL3FP

LinkPlus - LinkPlus products enhance the voice quality of HF SSB amateur. Eliminates virtually all channel noise and interference and greatly strengthens SSB radio signals

Magnecor - Finally auto ignition noise suppressor wires that really work.

JPS Communications - Noise reduction products

Mutek - Transverters, amplifiers and low noise preamplifiers

TE Systems - Manuf RF power amplifiers wideband+narrowband for Commercial, Defense, OEM and amatuer markets. Also low-noise rf amplifiers

Poly Phaser - Data, RF, video protectors coax combiner protectors, grounding Items

Timeware tech. - Amateur Radio Products, Noise Reduction Filters, Data Controllers, deviation meter, Software, DSP-RTTY

W2IHY Audio Products - Band audio equalizer and noise gate compatiable with ICOM, KENWOOD, YAESU and other radios

Moon Calendar - Current moon phase and monthly moon calendar

Hellschreiber beacon project - This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.

Introduction to MFSK and the MFSK16 - A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.

AA9CC Web Page - A few foxhunt reports, a phased array antenna plotting program and some cool links.

DRAO 10cm SOLAR RADIO NOISE PATROL - A graphic presentation of the 10cm solar flux index for the previous eight hours, along with links to copious archival information for previous months and years.

Thomas distributing  ^pop - Discount CB & Accessory Distributor. Top Brands such as Cobra, Uniden, Midland, Galaxy, Solarcon, Bandit, Pyramid, Wilson, Superstar, Palomar, Nortstar, President, Dosy, Paradynamics, K40, Nemarc, Road Noise, Astatic, Turner, Telex. Best Prices and exceptional service. 21 Years serving the Communication Trade.

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

WSJT High Speed Meteorscatter - "Software uses four-tone frequency-shift keying for meteor scatter. WSJT stands for ""Weak Signal communications, by K1JT"", and plans call for the program to include more than one communication mode."

TCalc - TCalc+ analyses the Noise and intermodulation performance of radio receiver front-ends.

RadioRaft  ^pop - RadioRaft decodes 10 different ARQ modes, 8 different FEC modes, Packet, Baudot, CW... It works with a Hamcomm interface or a radiomodem. RadioRaft offers automatic detection of modes, speeds and shift. It comes with a frequencymeter/baudmeter included, it has signal frequency tracking and a bit by bit display mode. Very easy to use. practical and fast.

Nova For Windows  ^pop - 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.

PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters

432 MHz EME PreAmplifier - 432 MHz EME low noise amplifier. Circuit, components and image by Christoph Petermann DF9CY