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Query: HF
Links: 945 | Categories: 60
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Categories
- Radio Equipment > HF Vertical Antenna > Butternut HF2V
- Manufacturers > Antennas > HF
- Radio Equipment > HF Amplifiers
- Operating Modes > HF Operations
- Radio Equipment > HF Portable Antenna
- Technical Reference > HF Radios
- Radio Equipment > HF Transceivers
- Radio Equipment > HF Vertical Antenna
- Radio Equipment > HF YAGI Antennas
- Shopping and Services > Antennas > VHF Antenna
- Technical Reference > VHF Radios
- Operating Modes > VHF UHF
- Antennas > VHF UHF
- Manufacturers > Antennas > VHF UHF Microwave
- Radio Equipment > VHF-UHF Amplifiers
- Radio Equipment > VHF-UHF Handhelds
- Radio Equipment > VHF-UHF Mobile
- Technical Reference > Amplifiers > HF Amplifiers
- Technical Reference > Amplifiers > UHF Amplifiers
- Technical Reference > Amplifiers > VHF Amplifiers
- Radio Equipment > HF Amplifiers > Acom 1000
- Operating Modes > Aircraft scatter
- Radio Equipment > HF Amplifiers > Ameritron AL-811
- Software > Beacon Monitoring
- Radio Equipment > HF Portable Antenna > Buddipole
- Radio Equipment > HF Vertical Antenna > Cushcraft R8
- Radio Equipment > HF Transceivers > Elecraft K4
- Radio Equipment > HF Transceivers > Elecraft KX2
- Manufacturers > Antennas > VHF UHF Microwave > Ground Plane Antennas
- Antennas > Handhelds
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Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band. -
This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube. -
G3YCC article pn the W3EDP end-fed antenna for 80 to 20 meters bands -
A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18. -
Reccomendations and tips for VHF-UHF operation -
Remotely tuned 1m diameter HF loop antenna for 7 to 29MHz by G8JNJ -
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Looking for Hams that want to experiment on VHF/UHF PSK/digital modes -
How to build a high gain vertical antenna for the UHF amateur or CB Bands, by radio experimenters handbook -
A multiband end-fed antenna that cover 3.5 to 30 Mhz using a 1:64 Balun based on a FT240-43 core -
Features and specifications for discontinued yaesu ft-100d radio -
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3 to 30 Mhz antenna analyzer schematic by YO3DAC / VA3IUL -
The Yaesu FNB-78 Battery plugs into the FT-897/D. It produces 13.2 VDC at 4500 mAh. The radio can hold one or two and one can be in use while the other is charging. -
If you can't get on the air from home, the Internet may provide the answer. By Brad Wyatt, K6WR. Pdf File. -
a neat 1:1 50 ohm balun for use on HF horizontal wire dipoles. -
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A model of a Guanella 1:1 VHF choke balun using a FT140-61 core -
The purpose of this page is to capture and document the Yaesu FT-101 series radios during the 1970's -
A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space by Lloyd Butler VK5BR -
I4FAF etrode Tube Linear Amplifier experience -
ON6MU Optimized 10 and 6 and 4 element UHF Yagi Antenna -
If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire -
JT65A frequencies. List of common HF frequencies where you can work JT65A. -
A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL -
A listing of 2m SSB nets around the US. -
An home made dual band antenna by DL5DBM Anwar -
ON6MU optimized 6/9 element vhf yagui antenna with antenna schematic plan and pictures of homebrewed samples. -
Comparison chart between Cushcraft R8, Hy-Gain AV640 , Butternut HF6V, Gap Titan and Eco 7+ -
An RF power amplifier, providing 7 Watts output in HF bands, schematic by ON6MU -
How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas -
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Electronic circuit and components layout fot this VHF Preamp -
The document provides information on the Maria Maluca Antenna by dl8ncr, a small beam antenna fed with VHF ribbon line consisting of a dipole and a director adjusted for the desired band. It offers details on the construction and usage of this HF multi-band directional antenna. -
A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU -
A project of VHF regenerative receiver by VK2ZAY -
Wideband VHF/UHF/SHF monolithic PreAmp based on MARx-series by ON6MU -
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Video construction of a multiband HF trapped dipole antenna based on a variation of the classic W3DZZ design -
SDR Radio DX Cluster data is taken from the Amateur Radio DX cluster using DXSpider -
A novel approach to aerial evaluation with diagrams and graphs by G3CWI -
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Amateur Radio software for transmission/reception of JT65 protocol. Brought to you by hb9hqx -
Notes on homebrewing antennas by Chris G4CYA, from gamma matching, to phasing antennas, splitters and combiners, baluns and measuring techniques. -
Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V -
A 40 ft vertical dipole antenna that can cover HF Bands from 80 to 10 meters winding a dipole in a 12m HD telescoping fiberglass pole -
By utilizing this software, you can enjoy the versatility of the TH-F6/ F7 transceivers through the memory channel management and edit functions. -
Members only articles on HF mobile antennas, includes an interesting RV antenna with a 5 bands coverage, and another similar antenna for camper. -
A full line of single-channel synthesized and crystal controlled vhf and uhf fm receivers. Great for repeaters, telemetry, and control applications. -
Schematic and pictures of a W7IUV preamplifier