high q
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Antennas : Helical- Helical Antennas
- The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics
[ Hits: 1343 | Votes: 1 | Rating: 10 ]
- Understanding the Hexbeam Antenna
- The Hexbeam is a great little antenna! It should be high on your list of options if you want a design that can be multi-banded, exhibits useful gain and directivity, is very lightweight, has a small turning radius, and which lends itself readily to Do It Yourself construction.
[ Hits: 505 | Votes: 4 | Rating: 8 ]
- The Versatile Vee Beam
- An aerial that you can use on all eight High
Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 m to 10 m
[ Hits: 1724 | Votes: 3 | Rating: 10 ]
- X-QUAD Antennas
- The X-Quad is an improved development of the well-known multi-element quad. Switchable polarization, high gain 2 m and 70 cm antenna
[ Hits: 1307 | Votes: 5 | Rating: 5.6 ]
- Cookie Cantenna Wi-Fi
- Make a cheap, portable, high performance (15-18 db) directional antenna out of commonly available parts that can be purchased in most grocery and hardware stores.
[ Hits: 6568 | Votes: 5 | Rating: 7.6 ]
- xggcomms.com Interfaces
- Xggcomms specialise in producing cost effective, high quality CAT and Audio interfaces for Icom and Yaesu Amateur Radio Equipment
[ Hits: 483 | Votes: 0 | Rating: 0 ]
- Xggcomms Icom Yaesu CAT Interfaces
- Xggcomms specialise in producing cost effective, high quality CAT and Audio interfaces for Icom and Yaesu Amateur Radio Equipment. Our interfaces are fully compatible with a large range of CAT and Digital Mode control software.
[ Hits: 325 | Votes: 0 | Rating: 0 ]
- PRO-COMM INC
- High power, UHF, L-band, S-band, C-band,
microwave frequency amplifier and oscillator devices, pulsed, CW, fixed-tuned, or tunable devices in the range of 600 MHz to 2000 MHz
[ Hits: 369 | Votes: 0 | Rating: 0 ]
- Iambic Keying
- Iambic Keying, Debunking the Myth by Marshall G. Emm, N1FN. A keying system controls transmitter activation, ranging from basic switches to electronic keyers that generate Morse code based on paddle input. Iambic keyers, introduced in the late 1950s, respond to simultaneous paddle closures with alternating dots and dashes. Despite touted efficiency, actual benefits are modest, offering about a 5% improvement in keystrokes, diminishing at higher speeds. Iambic keying's practical value is limited and may restrict sending speeds.
[ Hits: 627 | Votes: 0 | Rating: 0 ]
- Become a high speed CW operator
- How to become a High Speed CW operator, summary of information by AH6NB
[ Hits: 1016 | Votes: 4 | Rating: 1.75 ]
- High Latitude Geomagnetic data
- A dynamic collection of high latitude geomagnetic data from 12 Canadian observatories
[ Hits: 260 | Votes: 1 | Rating: 3 ]
- High Frequency Active Auroral Research Program
- A Scientific endeavor aimed at studying the properties and behavior of the ionosphere.
[ Hits: 410 | Votes: 2 | Rating: 4.5 ]
- VOACAP Online
- Online professional-grade high-frequency (3-30 MHz) propagation predictions
[ Hits: 1837 | Votes: 3 | Rating: 7 ]
- Small Antennas for High Frequencies
- This is about Small Antenna types and their properties which can help choosing proper
antenna for high-frequency wireless communications as: two-way radio, microwave short links,
repeaters, radio beacons or wireless telemetry
[ Hits: 723 | Votes: 2 | Rating: 6 ]
- Icom IC-2300H Review
- ICOM IC-2300H 2 Meter FM Transceiver
A worthy successor to the IC-2200H, a popular high power 2 meter mobile rig QST review
[ Hits: 445 | Votes: 1 | Rating: 10 ]
- MrSolar.com
- Features the highest quality, brand-name solar panels in the market, including BP, GE, SolarWorld, Sharp.
[ Hits: 448 | Votes: 0 | Rating: 0 ]
- Tubeworld
- Source for high quality new old stock vacuum tubes
[ Hits: 390 | Votes: 0 | Rating: 0 ]
- APRSISCE/32
- APRSISCE/32 is an Automatic Packet Reporting System (APRS) program, primarily intended for Windows and Windows Mobile (CE), although it will run on Linux and Mac OS under wine.
Offer enhanced messaging, announcement support via ANSRVR, and QRU for object query support, can run as a highly configurable Digipeater
[ Hits: 3233 | Votes: 8 | Rating: 7.75 ]
- JT65-HF by W6CQZ
- Download JT65-HF Amateur Radio software for reception/transmission of JT65A protocol with an emphasis upon its usage in the High Frequency Amateur Bands. This is the W6CQZ version not developed anymore.
[ Hits: 10393 | Votes: 23 | Rating: 6.49 ]
- A high perfomance Crowbar Circuit
- The MC3423 can protect sensitive circuity from power supply transients or regulator failure when used with an external "Crowbar" SCR.
[ Hits: 523 | Votes: 0 | Rating: 0 ]
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