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Query: HF
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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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VHF and Up DX-cluster with map mash-up includes list, HAM tools, QRB calculator by HA8TKS -
An unconventional antenna family, the VHF/UHF Zigzag Dipole Antennas. Design, theory and practical construction, transformation and balancing with a half wave balun. -
With spectrum analysis of beacon signals, it's possible to see features relating to various propagation phenomonen. -
On this page are designs for Dual Band 2M / 70cm antennas. All antennas are 50 ohm designed driver. These Yagis have a unique element called a Open Sleeve. 4 Element 5 element and 9 element Dual Band - 2M / 70cm antenna projects -
The unit was designed to assist with antenna comparisons -
The advantage of 5/8 wave antenna is that it has the lowest angle of radiation and has about 1dB more gain when compared to 1/4 and 1/2 verticals. So the 5/8 should be the favourite choice for DX. -
Sizes of wire as compared to their gauge American Wire Gauge by W8HDU -
A new, simple way to build the Eggbeater Antenna. This document introduces a new, simpler way to build the Eggbeater antenna. It also introduces a technically proper way to construct the Eggbeater antenna in order to achieve the best result. -
Yaesu FT817 all band, all mode handheld transceiver article. -
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An economical dipole for simple QRP HF homebrew rigs -
Provide service, quality home construction projects, travel antennas, masts and bases, hf and vhf amplifiers, low pass filters and z-match tuners -
A versatile hybrid synthesizer for UHF and Microwave Projects -
A few thoughts on Multi Band VHF Aerials by Peter Ward VK3ZAV -
This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner. -
A simple UHF Crystal Radio wired up to check for reception of VHF/UHF signals in the vicinity of the shack. -
VHF channel usage, making a mayday call, and related informations -
An 80m transceiver using just 14 parts plus crystal and earpiece -
Assembling installing and tuning the Butternut HF9V multiband vertical antenna -
Mounting antenna close each other. Distance calculations and tips on setting up antennas by KB9VBR -
Article on RTL SDR dongles to receive UHF VHF ham radio bands -
HFpack provides an information exchange about transceivers, antennas, systems, HF packs, propagation, new developments and techniques in HF portable operation. Radio Amateurs are invited to participate in egroup and on-the-air nets around the world. -
This method of construction can be used on most UHF through \"low\" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands -
6m/2m/70cm Yagi Antenna Built from Old TV Antenna This turned out to be a great little antenna. It works the 6 meter, 2 meter and 70 centimeter bands. You can use one common feedpoint or two seperate feedpoints depending on how you would like to connect this antenna to your transceiver. -
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With the bluecat interface it is possibile to connect a Yaesu FT 817 857 897 to a computer or a android smartphone without any cable or interface, using a bluetooth wireless connection -
An home made FETer QRP transceiver for the 80 meters band -
Excellent article and guide to choose the best RF power amplifier that fit your needs by ON4SKY -
Small antennas by KH6HAK, including 6 meter magneti loop antenna made with copper tubes. -
This project describes the construction of a real CW QRP keyer with a small microcontrolle -
FTB2070 is a memory management program for the VX-120 and VX-170 FM handhelds -
Setting up HF10 a solution for those having limited locations and wanting a low visual impact aerial by G4LDS -
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This video will provide a foundation for understanding how power amplifier circuits work. If you are new to High Frequency Power Amplifier Circuit Design, this is the place to start. -
Report on tests done on VHF Radios to understand which are best suited for 144 MHz operation in large signal environments like VHF contests -
About Coax Traps, NC4FB examine the operation of coax traps through modeling. -
On-air code practice idea, build this handy device and start your own FM CW net -
A list mantained by I5WBE of all beacons based in italy -
Describes the author's mobile HF and VHF station setup. PC4U (Mobile) Ham Station HF/V/UHF or via EchoLink PC4U-L -
This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. The schematic for the transceiver can be found on the Minima mail list in this post with a PDF attachment -
ICOM IC-9100 QST Product Review PDF File -
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A RF Probe circuit for the RADIO frequency experimenter to check the presence of a RF signal and also to measure its strength -
NOAA HRPT - High Rate Picture Transmission, the main source of high quality data from polar orbiting meteorological satellites -
DXCluster backbone of MMMonVHF Web DXCluster, DXCluster Map, DXCluster Mobile, ON4KST chat Review, N0UK chat review, Daily ES spots -
Vhf and UHF homebrewers of hardware and antennas. Find help, idea, or someone with just the same interest as you. -
Home of U30 - Ultimate 30 - free software for the 30 Meter 30MDG Club Award applications -
Choosing HF antennas for beginners -
VHF UHF Microwave EME Standings, a Who's Who on top in USA
