wide band

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wide band

96 links - and 1 categories

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 ]
Antennas : Active
  • Active loop antenna - A wide band active loop receiving antenna project by PA3GZK
    [ Hits: 1281 | Votes: 4 | Rating: 10 ]
Antennas : Baluns
  • 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 ]
Antennas : Fan Dipole
  • 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 ]
Antennas : HexBeam
  • 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 ]
Antennas : Receiving Antennas : Tuners
  • 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 ]
DX Resources : Contest : Contest Rules
  • 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 ]
Manufacturers : Amplifiers
  • 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 ]
Operating Modes : ESSB
  • 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 ]
Operating Modes : HF Operations
  • 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 ]
Radio Equipment : HF Transceivers : Icom IC-7300
  • 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 ]
Radio Equipment : HF Transceivers : Yaesu FT-817 Radio Equipment : Receivers : Icom IC-R20
  • 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 ]
Radio Scanning : Aeronautical
  • 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 ]
Shopping and Services : Regional : Europe
  • 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 ]
Technical Reference : QRP Projects
  • 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 ]
Technical Reference : SWR Meters
  • Wideband SWR meter - SWR meter for 1 to 1300 MHz project
    [ Hits: 1048 | Votes: 2 | Rating: 10 ]

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