low pass rf filter

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

Build A Tin Can WiFi Antenna  ^updated - Build a tin can waveguide WiFi antenna in one hour. Then put it on a 18" inch direct tv dish. No coax signal loss. Use a USB device on antenna. Complete instructions to build this powerful wlan antenna

Energy radio station Priority listing - Hompepage of the following stations, 295nrg101, 295zf1, 187zf1, 168nrg101, 15nrg101

Poland - PZK - Polski Zwiazek Krotkofalowcow, Polish Amateur Radio Union

SV8CS Spiros - Dx on Hf specially on low bands from Zante island Greece

SGC, Inc. - Manufacturer of HF transceivers, antenna couplers, antennas, RF Power amplifiers, portable antennas, speakers and other accessories for 28 years.

MARS Antennas - MARS, Israel's Antenna and RF System manufacturer, flat antennas for cellular, military broadband, multiband MF high power antenna

Nil-Jon Antennas - Performance Compact Antennas VHF/UHF mobile and base for ham, business, landmobile, police, fire, satellite, APRS, simplex, repeater, TV, FM, scanner or monitoring use.

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

HD Communications - Rf Connectors,RF Amplifiers,RF Filters,HF cable and accesories. Tower hardware valves and tubes

Kiwa - Filters and performance upgrades for many receivers

Tigertronics, Inc. - Packet/telemetry modems, GPS tracking, sound card interfaces

Pacific Research Solutions - Repeater Controllers, Repeater Tone Panels, Telephone Interface, Remote Monitoring Systems, Process Control and TDS Monitors

US Frequency Allocation Chart - Colorfull radio frequency spectrum allocations in the US, in PDF Format

2.4 GHz FM ATV - 2.4 ghz FM ATV experiment and equipment list

NOGA QRP club - Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles of Atlanta, are interested in promoting the development of the branch of amateur radio known as QRP - building and operating low power transmitters, receivers and transceivers.

CBC International CB Radio - "CB books, plans, and kits. Repairs, modifications, 10-Meter conversions, amplifiers, FM, unique high-performance accessories. Publishers of the classic ""Screwdriver Expert's"" Guide book."

Mainland Radio Communications Priority listing - Yaesu Kenwood, drake MFJ JPS JRC AOR Daiwa Hygain Weltz Uniden Lowe Black Jaguar Trident dealer

RF Limited - CB and Ham Radio accessories

Low Power Broadcasting - Low power broadcasting frequently asked questions by Rick Harrison

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

Tunekit - Filter Tuning Kit for Windows is a electronic filter synthesis program and a practical filter tuning aid for actually designing and building a working filter

TVI and BCI Filters - TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.

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

Gain receiver performance - Tips for those who wish to gain another level of performance from their receiver