three phase emi filter

Vertical phased Array - A SM3HXD vertical phased array antenna system

Three bands whip antenna - 21 28 and 50MHz three bands whip antenna by JA1HWO

Pi-filter ATU for Beams and Verticals - A ATU for beam and vertical antennas by PA0FRI

K7AR Mobile Cluster - Mobile dx cluster, allow filtering for HF and K WE dx spots only, WWV and DX spots search form.

Downeast Spectrum Amateur Radio Newsletter - The Downeast Spectrum is an Amateur Radio newsletter covering topics of interest to enthusiasts of the Ham Radio hobby and service. It also reports on the activities of three ham radio clubs in Down East, Maine

I2YSB DX Peditions Videos - Ham radio DX pedition videos by I2YSB

CWS Coil Winding Specialist - Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.

Communication Coil - Communication Coil, Inc. designs and produces custom, high reliability Filter Networks, RF Coils, Chokes, Inductors, Baluns, Toroids and Power Magnetics for communications

Taiyo Yuden - Ceramic capacitors, inductor ferrite products, high frequency dielectric components like chip antenna and filters.

Radio Bygoned - Radio Bygones is the leading quality magazine for vintage radio enthusiasts.

Remote Controlled TS-2000 Amateur Radio - K2gxt is the rochester institute of technology's (rit) amateur radio club, allow TS-2000 remote control via ham radio deluxe and skype

QST: Ten-Tec Jupiter review - AA1GW review of the Ten-Tec Jupiter HF transceiver published on QST June 2001

Ten-Tec Jupiter 538 Repair - Low-pass filter relay and reverse polarity repair notes by VE7TK

Yaesu FT-1000D improvements - Filtering, modifications and improvements of the Yaesu FT-1000D

Yaesu FT-1000 Sub RX Filter - Filtering of the Sub RX of the Yaesu FT-1000(D)

AussieScanners.com - For all your Radio and Scanning information in and around Australia. Online feeds, various links, heaps of information. Come and join Australia's Premier Radio Scanninf Forum

Kits and Parts dot Com - Supplying Toroids, Electronic Parts and Kits to Engineers, Schools and Hobbyists. Capacitos, filters, inductors, qrp products

Windipoles - Windipoles is a free passive filter simulator. It is a Windows .NET executable, so no software installation is required. It enables design, analysis, optimizations and plots, all graphically.

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

High Pass Filters - Understand how high pass filters are done

Using Band-Pass Filters - Clean Up Your Signals with Band-Pass Filters

Receiver Band-Pass Filters - Third-order Cauer filters can boost performance of multi-transmitter, multi-operator contest stations to the next level. The filters are practical and you don’t need expensive test equipment to align them.

I0SKK CDG2000 transceiver - CDG2000 is a superb transceiver, mainly designed as a high performance receiver by three G-land OM Colin Horrabin G3SBI; Dave Roberts G8KBB and George Faer G3OGQ.

Kenwood-to-PC Serial Interface - A circuit that connects an IBM® compatible personal computer, running TR Log or CT (etc.) contest logging software, and Kenwood transceivers equipped with serial control ports. CW keying is also provided in this RFI filtered interface unit.

Kenwood TH-215 TH-415 mods - Unfilter LF output from the TH215/415 kenwood portable radio