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Antennas : 160M
- Vertical for 80 or 160 meters
- KE4UYP project for a top fed 1/4 wave lenght linear loaded vertical for 80m or 160m
[ Hits: 1564 | Votes: 1 | Rating: 1.00 ]
- 3 elements 50MHz LFA Yagi antenna
- A very compact, 1.94 m boom, high gain LFA Yagi for 50MHz a good stacker and a must look, featuring max 8.47dBi at 50.150MHz and a F/B of 30.7dB, eznec files available to download.
[ Hits: 1598 | Votes: 10 | Rating: 3.81 ]
- Antenna Loading Coil Calculation
- The calculation refers to either a loaded 1/4 wave or a loaded dipole,
[ Hits: 13672 | Votes: 112 | Rating: 4.53 ]
- Inductor operation
- Understanding current in loading coils
[ Hits: 824 | Votes: 1 | Rating: 1.00 ]
- Dipole for 40 Meters by K4VX
- Here is a very simple and practical way to make a short but efficient 40-meter dipole.
The K4VX Linear-Loaded Dipole for 7 MHz
[ Hits: 2135 | Votes: 0 | Rating: 0.00 ]
- Mobile Portable Whip Antenna
- A simple base loaded quarter wave vertical, which can be used on a car or portable by G3YCC
[ Hits: 2668 | Votes: 0 | Rating: 0.00 ]
- Multiband HF Antenna
- This article explores the performance of an unloaded vertical as a multi-band HF antenna.
[ Hits: 1211 | Votes: 1 | Rating: 5.00 ]
- 13m high elevated vertical
- This article explores the performance of an unloaded elevated vertical, base matching and feed line as a multi-band HF antenna system.
[ Hits: 1137 | Votes: 0 | Rating: 0.00 ]
- Unloaded vertical as a multi-band HF antenna
- Performance of an unloaded ground mounted vertical as a multi-band HF antenna.
[ Hits: 555 | Votes: 0 | Rating: 0.00 ]
- Bird Technologies
- Bird Technologies supplier of RF products, like RF Meters, Bird 43, VNA, Spectrum analyzers, attenuators, transmitters combiners, dummyloads, terminators and replacement parts
[ Hits: 1238 | Votes: 2 | Rating: 10.00 ]
- QRP 1:1 Current-type Balun for Portable Use
- A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun
[ Hits: 2881 | Votes: 2 | Rating: 3.00 ]
- RSGB FT-857 Review
- RadCom Jun 2003 review of the Yaesu FT-857
[ Hits: 1173 | Votes: 1 | Rating: 10.00 ]
- SHOUTcast DNAS
- Broadcasting your radio from your home using the SHOUTcast Radio DNAS Application
[ Hits: 1131 | Votes: 11 | Rating: 2.82 ]
- Sunstone PCB Design Software
- Sunstone.com PCB123 PCB download software. Review Sunstone quality pcb design software. Free PCB software download for all of your business needs.
[ Hits: 732 | Votes: 1 | Rating: 6.00 ]
- Freeware Adif to cabrillo converter by SP7DQR. Windows ADIF 2 Cabrillo log format converter application let you translate you contest log book from the standard ADIF format to the Cabrillo format.
[ Hits: 4972 | Votes: 24 | Rating: 7.50 ]
- Capacitor kVAr calculator
- Online calculator to determine the Capacitor kVAr required to improve the power factor from cos 01 to cos 02 with your present kW load
[ Hits: 1235 | Votes: 46 | Rating: 5.02 ]
- QRP Power Meter and Dummy Load
- In this article the schematic is of AA5TB QRP power meter and dummy (50 Ohm) load combination
[ Hits: 1513 | Votes: 0 | Rating: 0.00 ]
- A homebrew UHF Dummy Load
- A homebrew dummy load is usually a combination of several parallel carbon resistors, in order to be able a final resistance of 50 Ohms.
[ Hits: 1459 | Votes: 2 | Rating: 5.50 ]
- Modify ICOM IC-735 for DRM
- Modify the ICOM IC-735 HF-Transceiver for DRM reception
[ Hits: 858 | Votes: 3 | Rating: 1.33 ]
- 13 cm transverter
- DF5QZ transverter project for 13 cm band
[ Hits: 984 | Votes: 0 | Rating: 0.00 ]
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