log periodic antenna des

The extended double zepp - This wire antenna exhibits extraordinarily high gain in a bi directional radiation pattern.

Current distribution in Coils - Current distribution in the antenna loading coils

G5RV Antenna  ^pop - Notes, and considerations about the G5RV antenna

The Fence Fan Dipole - The Fence Fan Dipole a quick, easy and inexpensive multiband dipole antenna

Satellite Antenna Tips  ^pop - Tips that may be of help with the most important part of an amateur radio satellite station, the antenna systems.

Cheap VHF/UHF Antennas  ^pop - Cheap Yagi Antennas for VHF/UHF

Luxembourg Callbook - Designed and copyrighted by Norbert Oberweis, LX1NO/KM6RY

SW2A Contest station - Welcome to SW2A special contest station, with photos, logs and results

Jones Emergency Management Support Group - This club provides emergency communications in the event of an emergency or disasters. and special events or search and rescue operations. severe weather radio nets.

VA3RJ Dave Priority listing - Awards, contesting, dxing, IOTA and Island info, on-line log searches, and much, much, more.

ZX-YAGI Antennas - Fine HF beams for Ham Radio and CB made in Germany

K5BOB Bobber Hex - Bobber Hex Antenna, Made of CNC cut UHMW plastics. Very little metal is used in production of this Hex beam antenna

Digital Signals Sounds - Several files with examples of sounds from digital radio modes on short wave. PSK, RTTY Hellschreiber MFSK FSK Sitor

EME resources by DL4EBY - Several kinds of operational data needed for Amateur Radio moonbounce (EME, earth moon earth) communications, the technical challenge amongst the various propagation modes on VHF, UHF and microwaves

Yaesu 920 & SoundCard - This circuit provides an interface between the Yaesu 920 transceiver and IBM computer sound card which allows data transfer and control of PSK31, RTTY, KEYBOARD CW, and SSTV modes for Amateur Radio

DX Radio - FM dx logs, MW carrier offset monitoring, lists of RDS codes in use in the UK, London pirate bandscan and much more from a London QTH.

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.

Vox Recorder  ^pop - Vox Recorder is a Windows utility wich allows recording sound from an audio source only when an audio signal is present; its main purpose is to avoid the recording of the silence eventually present at the input. Vox Recorder has been designed in particular for radio-scanner hobbists.

Voice Descramble - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band.

Stream - Stream is a software that implements MFSK16 and MFSK8 modes designed by me and Murray Greenman ZL1BPU. It also offers a series of experimental modes based on FEC, interleaving and several modulation techniques (PSK, QPSK, MSK, &c.).

Omnilog - Logging program which offers control of your KENWOOD, ICOM, TEN-TEC , or YAESU (FT840, FT900, FT990, FT1000, FT1000D) radios directly from your keyboard or emulation of any of the above radios.

CW Player  ^pop - Simple freeware program generates Morse caracters and Q codes. It needs a sound card and Win95.

WinPSKse - WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.

PathSim - PathSim is a Windows program that can be used to simulate radio propagation paths using a soundcard and/or wave files as the source and destination.

Mode J Desense Filter - This type of filter can be used in a Mode J satellite station (uplink on 2m, downlink on 70cm) to reduce the problem of the uplink signal desensing the receiver