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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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A telescopic pole that you adjust to suit the band you're working on , tested on 40 20 and 15 meters band by M0PZT -
SDR project based on a TI AFREDI8201 chipset with both ADC and DDC functions. This SDR needs no external PC and is a RX only. -
This antenna will cover the 2 meter Ham Radio frequencies. This collinear antenna has a total gain factor approx 6 to 7dbd on two meter band -
A 400 W 144 MHz GI7b Linear amplifier -
Here is an antenna for the nineties. It's strong, computer designed, and has lots of gain. It is a full size, four element beam on 10, and three elements on 15 meters -
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Proppy: Online HF propagation predictions using the ITU Recommendation P.533-13 Propagation Prediction Application. -
Moon bounce EME, meteor scatter and weak signal operations, introduction by ARRL. -
HFUnderground.com is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations. -
Low Noise Antenna pre-amp for SAT, EME & DX-ing -
Different band dipoles can be put together with a single feed, learn how by W8HDU -
HFCC manages and co-ordinates global databases of international shortwave broadcasting in keeping with International Radio Regulations of the ITU. Operational Schedule, available for free download and iteractive schedule -
IC706 Specifications by universal radio inc -
Live feed from Warren county fire dep. radio -
Putting up an antenna for the low bands? What kind of wire will you use? This analysis may change your plans. -
Download Sw 4 sstv,cw,rtty, via sb, and other appz 4 radioamateurs -
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A project for a four element cubical quad antenna for 144 MHz in portuguese -
The NAVTEX system is used for the automatic broadcast of localised Maritime Safety Information (MSI) using Radio Telex (also known as Narrow Band Direct Printing, or NBDP). -
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An RF power supply for 144 MHz schematics and instructions -
High Voltage Supply for GS 35B Amplifier -
Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD -
A pdf file with review of RTTY contests software available on the net and information on how to operate a RTTY Contest, by RSGB. -
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A vertical antenna project than can present low swr from 40 to 10 meters by using a balun in french -
A folded wire antenna for 160 meters as appeared on 73 amateur radio magazine june 1997 -
K2ZS found a way to have a reliable Indoor HF Antenna despite of antenna restrictions -
ARRL comparison of HF transceivers, including Elekraft, TenTec,Icom, Yaesu and Kenwood recent transceivers based on QST product reviews -
This program displays solar-terrestrial data for radio waves propagation that is provided by the N0NBH web-service. -
IC‐2300 MARS/CAP mod expanded frequency range 136‐174 MHz -
Understanding basic VHF and UHF propagation, eskip, Backscatter, Meteor Scatter and more -
This project was published in the April 2004 issue of the Australian magazine Amateur Radio, and has been designed using parts which are very readily available. -
Ari Milano draw and keep updated these pdf files representing the "radioamatori" bandplan, with notes in italian -
Diagram and sample ferrite balaun for 1.8-30 MHz -
Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads -
This is the report of a MFJ-259B analysis of two 100 ohm / 5 watts resistors in parallel partially in italian -
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Planning and modelling Delta Loop antennas for all the ham radio HF bands include calculated wire lengths at each mid-band -
All Band HF Doublet for operation over all HF bands including 160m. -
Transverter for 70MHz, a project by G3XBM -
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A multiband quarter wave vertical antenna that works on 5 bands. -
A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum -
Yaesu FT-857 features and specifications -
A comprehensive guide to receive Weather Satellites signals in wefax mode