low band
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Antennas : 6M : 6 meter Moxon Antennas- Building the 6 Meter Moxon Antenna
- A moxon antenna for the 50 MHz build with 19 feet of 14 AWG copper wire, and based on a set of PVC pipes.
This is an easy to build project that will give you an efficient directional antenna on 6 meters band with low SWR on more than 1 MHz bandwidth.
[ Hits: 505 | Votes: 4 | Rating: 7.75 ]
- LFA Yagi Antenna for 6 meter band
- This antenna is reported as being lower noise than conventional yagis and had a very low SWR for 500 KHz.
[ Hits: 199 | Votes: 3 | Rating: 7.33 ]
- About The Beverage Antennas - Receiving Antennas
- An article about the Beverage antennas, super long wire receiving antennas thar are unidirectional and have a very low noise that makes this antenna excellent for low band dxing. By Thomas R. Sundstrom W2XQ, 73, June 1981, 73 Magazine
[ Hits: 185 | Votes: 1 | Rating: 10 ]
- Short Monoband Dipole Antennas - KGD Antennas
- The KGD antenna is an option for those with space restrictions. The idea behing this project is to provide a short dipole antenna for HF Bands and to allow operations on HF bands when its not possible to setup large antennas, using these short base loaded dipoles.
[ Hits: 240 | Votes: 0 | Rating: 0 ]
- Multi-band End-Fed Antenna
- An excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
[ Hits: 1100 | Votes: 6 | Rating: 4.5 ]
- ZS6KMD 20-40m Multiband Dipole
- The dipole shown in this document is installed in an inverted Vee configuration, with two leg elements on each side held parallel to each other by 21cm spacers. The upper leg is for 40m and the lower leg for 20m. The spacers are made of 7mm plastic garden hose support for garden sprayers cut to 21cm.
[ Hits: 524 | Votes: 0 | Rating: 0 ]
- Balcony Mounted Buddistick Antenna by KP4MD
- The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
[ Hits: 279 | Votes: 3 | Rating: 10 ]
- The Easy Way Antenna Systems
- This document is a must read for anyone considering building a good low cost HF multi-band antenna system.
The author combine in this document four important ingredients to produce simple but effective antenna system, like antennas of non resonant length, line attenuation, the transmatch and the balun
[ Hits: 627 | Votes: 2 | Rating: 4.5 ]
- Semi-automatic antenna tuner project
- Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)
[ Hits: 291 | Votes: 0 | Rating: 0 ]
- TO9W Saint Martin 2019
- 4-13 December 2019 DX Pedition to Saint Martin focused on low bands
[ Hits: 143 | Votes: 1 | Rating: 10 ]
- 5H4WZ DXpedition Pemba isl.
- Members of the Low Bands Contest Club (OM7M) will take part in an DX-pedition to Pemba Island AF-063 from 6.2 – 18.2. 2020. They will be on air from 160-10m CW, SSB, RTTY & FT8. Also participation in the ARRL DX CW and CQ WPX RTTY contests. The licence is issued and callsign will be 5H4WZ.
[ Hits: 166 | Votes: 0 | Rating: 0 ]
- R3KBO EB104.ru Amateur Radio Products
- R3KBO is an amateur radio club producing and developing amateur radio kits and assembled products including HF VHF Power Amplifiers or RF Power Kits and amplifier parts, low pass filfers, band pass filters, sourge protections, splitters and combiners, antenna switches
[ Hits: 511 | Votes: 1 | Rating: 10 ]
- FT991 MARS Mod
- This modification will expand the tx frequency range of the Yaesu FT-991 from allowing just ham radio bands, to all bands 1.8 - 30MHz and 50-54 MHz.This information is solely for use by licensed members of MARS (Military Affiliate Radio System) or CAP (Civil Air Patrol)
[ Hits: 917 | Votes: 5 | Rating: 3 ]
- Antenna Calculation Software
- The program consists of tabbed pages for various antenna and transmission line calculation. You can compute the values for an inverted L network that will allow you to match the 50 ohm output of the radio, or you can compute the necessary length in the units of choice for a 5/8 wave vertical for 10 meter band.
[ Hits: 434 | Votes: 1 | Rating: 10 ]
- mini Ring-Core-Calculator - Calculate windings on ferrite cores
- The program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program.
Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
[ Hits: 390 | Votes: 1 | Rating: 1 ]
- FSQCall Fast Simple QSO
- FSQ is a Fast Simple QSO mode designed specifically for HF. It works well under NVIS and sunrise/sunset conditions on the lower bands, and also works well for short skip and grey-line on higher bands and can be used also on VHF FM.
[ Hits: 184 | Votes: 0 | Rating: 0 ]
- WSQCall A Weak Signal QSO mode for LF/MF
- Amateur Radio enthusiasts who are interested in the LF and MF bands may be familiar with WSPR and WSJT JT9. Used as a propagation probe or beacon, WSPR allows very weak signals to be detected, frequently as weak as -27dB SNR.
[ Hits: 186 | Votes: 0 | Rating: 0 ]
- DXWatch App for iPhone
- This is the official App of the popular DX Web Cluster DXWatch. You can follow amateur radio DX spots trough the world wide DX cluster network filter by band. Available for iPhone and iPad
[ Hits: 228 | Votes: 0 | Rating: 0 ]
- Hermes-Lite Low Cost HF SDR
- The Hermes-Lite is a low-cost direct down/up conversion software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project. It is entirely open source and open hardware, including the tools used for design and fabrication files. Over 300 Hermes-Lite 2.0 units have been successfully built.
[ Hits: 518 | Votes: 0 | Rating: 0 ]
- 70cm Mini-Transverter Project
- The project in this article illustrates how to do this in a simple and low cost way so that you can easily access the microwave bands using the existing HF or HF/VHF transceiver as IF.
[ Hits: 252 | Votes: 2 | Rating: 9 ]
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