pi filter

Magnetic Loop Antenna Experiments - Building a magnetic loop antenna feels more like a small plumbing project as the principle building materials consists of copper water pipe and fittings that must be soldered ("sweated") together. Full details drawing and details here.

A half slooper for 160 meters - Italian article includes picturer and plans to homebrew an half-slooper antenna for 160 meters band

N5BU BoatAnchor Pix - Contains high resolution fast-loading images of BoatAnchors

Low Land DX-pedition Team - Contains stories, pictures, audio files of all previous expeditions and current ones.

DXCluster IOTA spots - Live IOTA spots by the dxsummit dx cluster

PI4KAR - Kempische Radio Amateur Club Bladel.

ARI Torino, Sala Radio Priority listing - "Sezione A.R.I. di Torino presents ""Sala Radio"" dedicated to Duilio Secoli I1TMD"

ARI Pisa - Sezione ARI PISA Italy

Sturdy Memorial Hospital Amateur Radio Club Priority listing - Provides Attleboro Area towns with Emergency Communications needs and local Amateur Radio operators with the opportunity to enjoy their hobby in a group atmosphere.

Wireless Association of South Hills - Serving the South Hills area of Pittsburgh, PA

IK1MTX Piero - "Manager of ham radio station ""Duilio Secoli I1TMD"" by Sezione ARI in Torino."

AI8O Piedmont North Carolina - Piedmont NC ham radio and scanner information.

Com on Bak - A retractable holder that rotates to make using a CB, FRS & Cell phone, easier without the worry of dropping or losing it.

Build your DF Unit - Building your doppler, pictures and instructions.

SSTV picture library - 2E1EHM web site with a collection of pictures. You can download from this site to add to your SSTV picture library.

Popular Communications Magazine - Monthly radio publication covering shortwave, scanning, Internet radio, CB, Pirate and clandestine radio, amateur, FRS, satellite monitoring and antique radio.

WeatherExperts - WeatherExperts.Com, the premier online store for weather stations, instruments, anemometers, barometers, accesories, and satellite pictures. Excellent prices!

WINRLC - Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.

DSPFilter - MM Hamsoft  ^pop - Freeware DSP filter by JE3HHT

MacGPS Pro - Mapping software which links a Garmin GPS receiver to your Macintosh. Includes Maidenhead grid squares and beam-pointing maps.

Control CAT FT 847 - Control software for Yaesu FT-847

SSTV Pics - Categorize and search images. Click on a thumbnail and it will be pasted into EasyPal.

S51KQ paradise - ATV, FM, Ax25 and more. Ham radio projects , pictures,... 80MB online

7 MHz SSB Transceiver  ^pop - Circuit diagram and discription of 7 MHz Ham Radio SSB Transceiver. Transceiver using two MC1496, 4.43 MHz Ladder filter, LM386, LM324 and IRF840 in final.

Ham Radio Circuits  ^pop - Circuits of SSB Transceiver, AM DSB Transmitter, Antennas, BFO, VFO, 807, FM Mike, Crystal filter and more.