wide band
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Antennas : 6M : 6 meter Yagi Antennas- 3 Element Yagi Antenna Plan for 6 meter
- A short boom, wideband 3 element yagi antenna plan for six meters that cover the entire band with a resonable performance and a 50 Ohm SWR of less 2:1. Article appeared in QST August 2007
[ Hits: 1291 | Votes: 0 | Rating: 0 ]
- Active loop antenna
- A wide band active loop receiving antenna project by PA3GZK
[ Hits: 1281 | Votes: 4 | Rating: 10 ]
- 1:49 Transformer
- This 1:49 transformer is used with wires any multiple of 1/2 wavelength. This is not a matching network, it's a wideband transformer and it has some advantages compared to LC matching
[ Hits: 2471 | Votes: 25 | Rating: 5.84 ]
- Compact fan dipole for 40 30 and 20 meters band
- An homemade fan dipole antenna for 20 30 40 meter bands, setup in a 15 meter wide garden. The longest leg for 40 meter is folded to fit in the 7.5 m
[ Hits: 1134 | Votes: 0 | Rating: 0 ]
- Broadband hexbeam
- This version of the broadband hexbeam is based on the work of Hunt G3TXQ, HB9MCZ, and Shoemaker K4KIO. EZNEC model is based on a wider element spacing than the version published in QST by K4KIO
[ Hits: 572 | Votes: 5 | Rating: 7.8 ]
- Wide Band Active Loop Antenna
- A shielded broadband (~200 MHz) active loop antenna offers more quiet and relatively less interference reception.
[ Hits: 611 | Votes: 5 | Rating: 8 ]
- Receiving Phased Array with Small Electric or Magnetic Active Wideband Elements
- Wideband receiving phased arrays with small electric or magnetic active wideband
elements are discussed in details. Practical results and examples are given.
[ Hits: 547 | Votes: 0 | Rating: 0 ]
- Z-Match 100 and mini Z-Match
- This is a one for all antenna tuner with wide range tuning on all the HF bands. The tuner is based on a G3WQW design. DIY project by PD7MAA
[ Hits: 923 | Votes: 0 | Rating: 0 ]
- CQ World Wide VHF Contest
- Official web site of the CQ World Wide VHF Contest
The contest promotes VHF activity on the 6 and 2 meter bands with participation from around the world.
[ Hits: 183 | Votes: 0 | Rating: 0 ]
- RF Amplifiers - NP Technologies, Inc.
- Develop, design, manufacture and test a wide range of RF Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF.
[ Hits: 411 | Votes: 1 | Rating: 1 ]
- Transmitter Bandwidth and Splatter
- Technical Comments about Transmitter Intermodulation, Distortion, and ESSB (or Hi Fi Wide Fi SSB) audio or over equalization by W8JI
[ Hits: 257 | Votes: 1 | Rating: 10 ]
- HF Bands
- A review of the HF ham radio bands, considere by far the most popular bands in the amateur service. HF bands offer local QSOs and world-wide propagation are all possible at almost anytime with careful selection of the right frequency for the time of day, time of year, and current state of the sunspot cycle.
[ Hits: 372 | Votes: 1 | Rating: 10 ]
- Icom IC 7300 wide band modification
- ICOM IC-7300 MARS CAP Extended TX modification based on PA2DB instructions with a video and instructions.
[ Hits: 1928 | Votes: 7 | Rating: 7.71 ]
- FT-817nd Wideband mod - PA1CA
- A clear description, with photos, for widebanding the FT-817nd.
[ Hits: 1766 | Votes: 3 | Rating: 10 ]
- ICOM IC-R20 Officialpage
- Official page of the IC-R20 wideband radio receiver now discontinued
[ Hits: 308 | Votes: 0 | Rating: 0 ]
- Icom IC-r20 Reviews
- eHam.net reviews of the Icom IC-R20 wideband receiver
[ Hits: 236 | Votes: 0 | Rating: 0 ]
- Aeronautical HF-Radio Map
updated
- A large worldwide map of aeronautical service Frequencies allocation on HF bands dated 2002
[ Hits: 3953 | Votes: 13 | Rating: 6.7 ]
- DUAL
- Antenna and ham equipment manufacturer in Serbia.
The Dual company has been producing antennas for more than 25 years focusing on wide bandwidth, designs that work equally well in all weather conditions, very low SWR and superior G/T, F/B and F/S ratios
[ Hits: 398 | Votes: 2 | Rating: 6 ]
- HF1 QRP Transceiver Project
- 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
[ Hits: 670 | Votes: 0 | Rating: 0 ]
- Wideband SWR meter
- SWR meter for 1 to 1300 MHz project
[ Hits: 1048 | Votes: 2 | Rating: 10 ]
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