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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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Kenwood TS-590S features, accessories, specifications and details -
70 MHz transverter, 4m band, by G3XBM -
The main function of the Ugly Balun is to help eliminate rf currents from flowing on the outside of coaxial cable using the principle of choke action. -
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Get familiar with the basic operating procedures for using the JT65 mode of HF digital communications, a 35 pages PDF file. -
My Top Five Backyard Multi-Band Wire HF Antennas. A selection of the top 5 HF wire antennas for the backyard and for multi-band operation -
Design of a 40 meter Vertical antenna -
Cushcraft A3S HF antenna 1:1 balun repair. -
This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna. -
What makes a good solid-state amp ? by Adam Farson, VA7OJ/AB4OJ, May 2002 -
Find out how much to adjust the length of a quarter wave whip or a half wave dipole rather than the outright cut-and-try method. -
Shelby amateur radio club's VHF emergency net is open to all within the repeater's coverage area. 146.880 and 147.345 are the repeater frequencies. Shelby Radio Club is the sponsor of the Shelby hamfest. -
Meteor scatter, gives quick view over meteor scatter and scatter events on vhf, lists email addresses of vhf radio amateurs qrv in meteor scatter -
The following table is adapted from the International Telecommunications Union Radio Regulations Appendix 18, including changes adopted by the 2012 World Radio Conference. -
Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF -
Automatic e-mail alert of propagation information. Gives current solar flux, Ap, Kp, solar wind information, solar and geomagnetic conditions past and forecast, sunspots, aurora index, and more. -
MP3 and Wav files of some stations recorded on HF anc VHF bands by K9MU -
Hams have been putting stations in their cars since the Twenties. Today, there is great satisfaction in facing the challenge of installing a transceiver in our small cars and pick-ups, using somewhat inefficient antennas -
Description and simulation of two types of rhombic antennas, using the software 4Nec2: the simple bi-directional and the terminated directional rhombic antenna -
Concentrating on VHF DX, Aurora, Meteorscatter, TEP, Sporadic E, EME, VHF DXpeditions. Daily updates. -
This circuit came out of some work done for two antenna analysers -
A home made project for a 3 to 12 MHz signal generator -
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A ten element ultra-lightweight yagi beam antenna for 144 MHz based on YU7EF design concept -
Irish ham and Vhf radio info. Logs and maps worked, no excuses, this is mainly a VHF site -
As used on the new GB3VHF 144.43MHz Beacon -
A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna -
Here are 10 tips and truisms that every ham should know about antennas, by W20QI -
This article describes the design and simulation of a multiple dipole antenna for the HF band, using the software MMANA-GAL. The antenna will be designed to operate in the 10, 20, 40 and 80 m bands -
Pictures and project design of a crossband VHF UHF repeater by LY3H -
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Technical specification by Universal Radio -
Ham radio mobile operator fom CA, tips for hf mobile antenna installation, antenna masts -
The Ameritron ALS-600 600-Watt HF Power Amplifier review by AD5X -
Assembling the Butternut HF9v HF vertical antenna -
HFRadio.US is a woman-owned small business that specializes in products for the HF market. We have our own line of broadband HF antennas plus other specialized products primarily for the Motorola Micom series radios. -
An home made HF mobile multiband antenna inspired by the KM4IE HF 20 dollars antenna or the Texas Bugcatcher can work 75 to 15 meters band with an acceptable SWR. -
An off-center-fed sleeve dipole, made of CPVC and aluminum foil tape by KV5R -
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The fan dipole antenna as an alternative to the paralled dipole antenna, to achieve a larger bandwidth and a better tuning by decreasing elenment influences.A project based on the W6HDG original concept. -
WB3AAL setup project of the popular HF9V vertical antenna with report on tuning it on ham radio HF bands -
K8GP web site, home of the Grid Pirates Contest Group. -
New Zealand Amateur Radio 70, 32 & 23 cm (UHF) Repeaters -
A handy piece of test equipment useful for HF bands, can absorb a 200W modulated carrier for almost 2 minutes. It is housed in a tin and part filled with dry sand that helps in power dissipation -
The antenna swtich was designed to assist with antenna comparisons mande with a IP56 rated box -
AL-811 and AL-811H specifications and information about this 600-800 Watt ham radio ower amplifiers -
An old comparison table for early 2000s popular HF transceivers -
An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight. -
Discussion groups for Shortwave Listening, Propagation, Amateur Radio, and related topics. -
Layman level explanations of "seemingly" mysterious LF MF and HF propagation occurrences.