9 band

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9 band

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Antennas : Baluns
  • When and Where to Use Baluns - Baluns are usually used by Hams to feed dipole antennas with 50 ohm coax and to transpose from ladder line feeding a multi-band antenna to the unbalanced input of an antenna tuner.
    [ Hits: 1518 | Votes: 9 | Rating: 7 ]
Antennas : CobWeb
  • Building a CobWebb Antenna - Homebrew a cobwebb antenna for the HF bands. This page describe a cobwebb multiband antenna resonating on 14 18 21 24 and 28 MHz. The cobweb antenna model can be considered a fan dipole, or better, multiple dipoles fed in parallel.
    [ Hits: 1488 | Votes: 5 | Rating: 7.6 ]
Antennas : Delta loop
  • 50 MHz Delta Loop - A simple delta loop antenna antenna for the six metre amateur radio band
    [ Hits: 1896 | Votes: 4 | Rating: 6.5 ]
Antennas : End-Fed
  • Multiband end fed antennas - This is a 200 Watt PEP step up transformer for end fed full and half wave antennas without radials, designed as a 200 Watt PEP
    [ Hits: 2273 | Votes: 9 | Rating: 7.32 ]
  • Multiband trapped end fed antenna - A multiband trapped end-fed antenna can cover 20 30 40m bands. An option for portable sota operations were weight end simplicity are essential
    [ Hits: 770 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • Shortened EFHW Antenna 80-10m - A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and <3 till 10m. Bandwith on 80m is 300kHz
    [ Hits: 4116 | Votes: 10 | Rating: 6 ]
Antennas : Four Square
  • 4 Square K9AY Antenna - 4 Square K9AY Array project for 80 and 40 meters band
    [ Hits: 555 | 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 ]
Ham Radio : Band Plans
  • IARU R1 HF BandPlan - June 2016 - A recommendation for all radio amateurs how to use the bands, as revised at the Interim Meeting Vienna 2016, effective 01 June 2016.
    [ Hits: 1246 | Votes: 4 | Rating: 5.75 ]
Manufacturers : Test Equipment : Signal generator
  • Keysight (Agilent) Signal Generator - Keysight offers numerous baseband, RF, and microwave signal generator (signal source) products. From basic to advanced, baseband to 67 GHz, Keysight signal generators are capable of frequency extensions to 500 GHz with millimeter-wave source modules.
    [ Hits: 237 | Votes: 0 | Rating: 0 ]
Operating Modes : HSMM
  • The Mesh Node - A technical explanation of what is a mesh node in HSMM-Mesh HamNet, with explaination of specific roles of each network interface
    [ Hits: 443 | Votes: 1 | Rating: 3 ]
Radio Equipment : HF Portable Antenna : Super Antennas MP-1
  • Elevated MP-1 Antenna - A test with a superantenna MP-1 on a tripod operating HF bands on 40 20 and 17 meters band
    [ Hits: 439 | Votes: 1 | Rating: 8 ]
Radio Equipment : HF Transceivers : Yaesu FT-891 Radio Equipment : HF Vertical Antenna
  • Butternut HF9V Installation - Assembling installing and tuning the Butternut HF9V multiband vertical antenna
    [ Hits: 725 | Votes: 1 | Rating: 9 ]
Radio Equipment : HF Vertical Antenna : Butternut HF2V
  • Tuning the Butternut HF2V - Complete instructions on tuning the Butternut HF2V on four bands, 80, 40 , 30 and 15 meters
    [ Hits: 576 | Votes: 1 | Rating: 3 ]
Radio Equipment : VHF-UHF Amplifiers : Mirage BD-35
  • Mirage BD-35 Review - A personal review of the Mirage BD-35 dual band VHF UHF Amplifier
    [ Hits: 301 | Votes: 3 | Rating: 3.33 ]
Technical Reference : Amplifiers : HF Amplifiers Technical Reference : Filters
  • Tunable BandPass Filter - A homemade tunable bandpass filter for all HF bands from 160m to 10m
    [ Hits: 1119 | Votes: 3 | Rating: 5.67 ]
Technical Reference : QRM Eliminator
  • PlasmaTV QRN Eliminator - An improved version of DK9NL QRM Killer, with dedicated noise sampling antenna for completely filtering of plasma TV rattle on HF bands
    [ Hits: 898 | Votes: 0 | Rating: 0 ]
Technical Reference : Receivers : Regenerative Receiver
  • A Progressive Communications Receiver - The purpose of this webpage is to document an attempt at this project starting with the 80m core receiver first and also having the parts on hand for then adding the first dual conversion band (40m)
    [ Hits: 430 | Votes: 1 | Rating: 10 ]

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