bipolar regenerative rec

Moxon Rectangles - Using moxon rectangles for WARC-Band antennas

The Moxon Rectangle on 2 Meters - We often think of the Moxon rectangle as strictly an HF antenna. However, its small size and special far field pattern lend themselves to some VHF applications. So let's see how to adapt the design to 2 meters (as a popular band choice) and also see a few of the uses to which we may effectively put the design.

Omni-Directional antenna for 6-Meters - Experimental omni-directional antennas for 6-meters band

W8JI Technical pages  ^pop - Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.

Quad vs. Yagi - Why go for a quad rather than a yagi

Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 – 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.

Shortwave antenna - Magic Anti-Jamming antenna for shortwave reception

Radiation and scattering - Basic antenna theory, Antenna directivity and effective area, Antenna arrays

Azimuth Precision - knowing your Yagi! - by Zaba, OH1ZAA / NN0Y

ZS6EZ's Amateur Radio Home Page - An assortment of contesting and DXing stuff, including tutorials, unsolicited opinions, records and awards info.

WL1030 Wideband Magnetic Loop - Wideband receiving loop for VLF LF HF 10 kHz - 30 MHz

KB6KQ Loop antennas - Horizontally polarized, omnidirectional loop antennas for VHF and 70cm amateur bands

Laipac Technology Inc. - We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking

Hidetsugu Yagi : Father of Yagi Antenna - The Yagi Antenna is a directional antenna invented by Dr. Hidetsugu Yagi of Tohoku Imperial University and his assistant, Dr. Shintaro Uta.

50 Mhz Dx & Audio Files - Lage collection of 6 Meters and 2 meters QSOs, recorded in real audio format by OE3MWS

Monitoring The Iraq War - Monitoring The Iraq War As the world waits and watches Iraq, if you've got a``shortwave receiver with sideband mode (USB and LSB) you can hear certain``military communications

Lee Electronics - Offers Scanners, Shortwave, Wide-Band receivers, accessories from Icom, AOR, Sangean and Grundig.

AMANDX - AMANDX is a site dedicated to the new listener. There are articles on antennas receivers etc.

CWLab02 - CW and CCW Sending and Receiving Program. Improved CW, Easy to use CCW, Sending in same Window

Codemaster V - world-wide reputation as the Morse code training package for either the newcomer to Morse code, or the experienced user who wants to improve his or her receiving skills

G4UXD Morse Supa Tuta - "Full details, reviews and testimonials of the widely-acclaimed, fully-functioned, QSO-format G4UXD Morse ""Supa-Tuta"", recommended by RSGB Morse Examiners and ideal for the Koch method."

DXProp  ^pop - DXprop is a radiowave propagation forecast freeware for ham radio operators, permits to predict propagation on 12 frequencies. Use Minimuf 3.5 routine developped for US Navy. Available in French and English

FTBVR5K - VR-5000 Memory Management - FTBVR5K is a memory management program for the Yaesu VR-5000 scanning receiver.

JRC NRD-525 - Tout connaître sur le récepteur JRC NRD-525. All about the JRC NRD-525 receiver. EPROM, RS-232.

Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter