noise gate

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

Linear-Loaded Inverted V  ^pop - How do you fit a full length 160 meter antenna into a 40 foot deep yard?

Coax Balun - A very simple coax balun

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

Zero 1 and Sweet Thang's C.B. Site - Hi, we are C.B.'ers from the MiniGrass (Hawaii). We have links to just about anything (c.b. related) on our site, plus some cool pics too.

IARU Region II HF Band Plan - This band plan was approved by the XIII General Assembly of Delegates of IARU Region II held at Porlamar, Margarita Island, Venezuela from September 28 to October 2, 1998

Buffalo Hamfest - Greater Buffalo Hamfest

Radio Gateway by IKXHT - "The project ""Internet on the Air!"" Radio Gateway project"

CB Packet Radio Internet Gateway DNX274 - Internet packet radio gateway DNX274 for european citizen band with BBS, Convers-chat and many more, located in Germany

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

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

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.

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.

JWO SERVICES - "Amateur radio publications & Accessories; shortwave listener publications, code keys, etc. All at a discount."

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.

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

Lowpass filter for 5MHz - The following lowpass filter was built using the tables in the arrl manual, it is a 5 section one and seems to work ok