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Alexander The Great AWARD from Northern Greece Contest Team -
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YAESU FT-1000MP Mark V ESSB Modifications pdf file -
The IC-756, a Step Forward for HF and six metre DX by Frank van Dijk, PA3BFM -
The latest info on the world of radio including:world,shortwave,pirate,digital,mw,lw news,links. -
Yaesu VX-150, VX-170 BATTERY questions -
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Provides technology and solutions for the electronic test and measurement, optical, rf and microwave, wireless, wired, telecommunications. Make Frequency Counters, Antenna and spectrum analyzers, power meters, signal generators -
Modeling compact 160 meter antennas, inverted L, half wave dipoles and linearly loaded dipole -
New Zealand Amateur Radio 70, 32 & 23 cm (UHF) Repeaters -
A small application that helps you to sort your outgoing QSL-card properly by UBA -
A multiband HF Vee Beam antenna at VK5SW. If you're lucky enough to have the room, perhaps you may like to put up a multiband Vee Beam antenna for the HF bands. -
Eham review for FT-1000d version -
PACTOR mode radio modems and accessories, performance sailing electronics and innovative hard to find parts. Audio cables, packet cables, usb to serial converters -
Online calculator, Butterworth Bandstop (Notch) Filter Designer -
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Pmr, tetra ,ricetrasmittenti, ponti radio,motorola,icom,kenwood,pmr dealer in italy -
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ik3qar Logs on line of IOTA EU131 / IIA expeditions -
City of Milwaukee Fire Department Live Audio Feed -
G3SEK answers to some practical questions on builing the N2PK VNA Vector Network Analyser -
This article describes a generalised unit for interfacing a transceiver's TTL/CMOS interface to RS-232. -
Pictures and description of a homemade 1.3 GHz and 2.4 GHz RF Signal Source -
Experimentig magnetic loop antennas for VHF and HF by M0UKD -
Tri-Cities Frequencies, Live Scanners, CTCSS information and more -
Serving the south Kansas city metropolitan area, Grandview, MO -
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Yet Another APRS Client, is a free Java application written by Andrew Pavlin, KA2DDO, for monitoring and contributing to the APRS network. YAAC can be used as a stand-alone APRS client, an APRS RF-Internet gateway (I-Gate), or as a AX.25 digipeater. -
An homebrew project of a full wave delta loop antenna for the 40 meters band with dimensione, picture and assembling instructions in Indonesian -
HIDEXA Dedicated To The Pursuit Of Worldwide DX -
Covers experimental work from VLF through laser by K3PGP, one of the EME pioneers. -
K8GP web site, home of the Grid Pirates Contest Group. -
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The NB6Zep Antenna, an electrically shortened 80-meter end-fed wire, addresses space constraints for low-band operation by integrating two loading coils into a 37-foot wire. This design, modeled with _EZNEC_, explores configurations like the quarter-wave sloper and inverted-L, with the latter providing a more vertical radiation pattern and practical backyard deployment. The resource details specific coil construction, recommending 21 uH coils made from _BW coil stock #3026_ or similar, and outlines wire segment lengths for optimal tuning. Performance analysis indicates a radiating efficiency of approximately 27% with good ground conductivity, resulting in a signal typically 3-4 dB down compared to a full-size quarter-wave vertical. The antenna exhibits a narrow bandwidth, around 50 kHz, due to its high Q, necessitating a tuner for broader band operation. Feedpoint impedance is low, with ground resistance playing a critical role in achieving a usable SWR. The article emphasizes the importance of an effective ground rod at the feedpoint for proper operation and tuning, suggesting an antenna analyzer for precise adjustments. It confirms the antenna's suitability for DX, citing successful contacts from Oregon to the East Coast and Hawaii on a 160-meter variant, making it a viable option for urban operators seeking low-angle radiation on 80 meters. -
Providers of solar panels, photovoltaic systems, Solar Cells and Solar Renewable systems and education for the Do-It-Yourselfer -
Schurr Morsetasten, morse code keys and paddles manufacturer in Germany -
In this article the author provides some guidelines on how to solve a common problem when stacking different types of yagi antennas on the same mast, limiting the effects on gain and radiation pattern of both antennas -
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Low Cost frequency counters and DDS VFO's for QRP and Vintage Radio's. LCD Digital Display, Frequency Counter or DDS VFO -
Lightning protection for electronic equipment -
Homebrew your PC sound card to radio interface with this circuit obtained from the pages of Ernie Mills WM2U. -
A wire antenna feeded with an unsymmetrical feed and a 1:4 balun can be tuned from 6 to 80 meters band but can be noisier than a dipole and cause RF in the shack -
22 Different Wire Antennas for the 160 Meter Band, Random Length Radiator Wire, delta loop, loop antennas, off-centered antennas, sloper, dipoles, Z antenna, Zepp and Clothesline Antennas -
AL-811 and AL-811H specifications and information about this 600-800 Watt ham radio ower amplifiers -
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Headsets for noisy environments -
This mod flattens out the ACC2 audio input low frequency response -
Ham Radio Antenna parts and kits manufacturer, based in Germany
