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40m band

40m band

64 links and 1 categories about 40m band on dxzone.com

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Antennas : 40M
  • 40M Fullwave Loop Antenna - KA6WKE full wave antenna for the 40m amateur radio band
    [ Hits: 744 | Votes: 3 | Rating: 8.67 ]
  • A 40m Vertical - This antenna is intended as a simple, inexpensive solution for the newcomer to experiment across the 40m band (7.07.2MHz) when only restricted space is available
    [ Hits: 8929 | Votes: 5 | Rating: 2.80 ]
  • 40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
    [ Hits: 9753 | Votes: 6 | Rating: 3.33 ]
  • 40M 3 element beam - History project and dimensions of a 3 element yagi beam for 40 meters band
    [ Hits: 7501 | Votes: 6 | Rating: 3.00 ]
  • TLV40m antenna - Top Loaded vertical antenna for 40m Band with elevated radials
    [ Hits: 1861 | Votes: 0 | Rating: 0.00 ]
  • Top loaded vertical - Vertical Antenna for 40m Band with elevated Radials Top Load is a Mesh 2 x 1 meter (Netz 2x1m) enamelled wire 0.5 mm diameter (CuL 0,5mm)
    [ Hits: 2024 | Votes: 1 | Rating: 1.00 ]
  • 40 meter double bazooka antenna - A double bazooka antenna plan for the cw portion of the 40 meter band by k0ru
    [ Hits: 7867 | Votes: 14 | Rating: 5.22 ]
Antennas : Delta loop Antennas : Dipole
  • 40m Mono Dipole Antenna - A home made 40m monoband dipole antenna and 1:1 Ugly Balun by TB1CIG
    [ Hits: 273 | Votes: 2 | Rating: 3.50 ]
Antennas : J-Pole Antennas : K9AY
  • Receiving antenna for low bands - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter
    [ Hits: 16672 | Votes: 9 | Rating: 8.33 ]
Antennas : Loop
  • 40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
    [ Hits: 5634 | Votes: 15 | Rating: 7.52 ]
Antennas : Multiband
  • Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
    [ Hits: 4554 | Votes: 4 | Rating: 8.00 ]
Antennas : OCF Antennas : Wire
  • 40m Short Antenna - GM4JMU shortened dipole for 40 meters band
    [ Hits: 24344 | Votes: 28 | Rating: 4.89 ]
Contesting : Rules
  • UN DX Contest 2010 - The Kazakhstan Federation of Radio sport and Radio amateur (KFRR) and Ministry of Tourism and Sport of the Republic of Kazakhstan are announcing the First UN DX CONTEST All world-wide radio amateurs having the amateur radio licence are invited to participation. Contest period: 12.00 UTC 22 May 12.00 UTC 23 May 2010 Bands: 160m, 80m, 40m, 20m, 15m, 10m. Modes: CW and SSB
    [ Hits: 140 | Votes: 1 | Rating: 10.00 ]
DX Resources : Beacons : Beacon stations
  • IZ3DVW/B - 40meter band beacon on 7,039.6 MHz
    [ Hits: 525 | Votes: 0 | Rating: 0.00 ]
DX Resources : DX Peditions
  • 1SL1A Sealand DXpedition - 9-10 December 2000, Bands to be concentrated on will be 10m,15m,20m,40m,80m. WARC bands and 160 are being considered
    [ Hits: 918 | Votes: 1 | Rating: 1.00 ]
DX Resources : Nets
  • Omiss - OM International sideband society incorporated nets 75M, 40M, and 20M Nets begin one hour earlier during Daylight Savings Time
    [ Hits: 1620 | Votes: 8 | Rating: 9.76 ]
Manufacturers : Antennas : HF
  • Chameleon Antenna - The Chameleon V1 HF Multiband Antenna is a mobile antenna that can also be used as portable. Lightweight mil whip antenna system with 10 BANDS capability 6m, 10m, 12m, 15m, 17m, 20m, 30m, 40m, 60m & 80m.
    [ Hits: 2531 | Votes: 15 | Rating: 0.00 ]
  • RippleTech Electronics - Wide bandwidth Trapped Verticals and rotary dipoles, baluns, 40m/80m wire dipoles and accessories from Australia.
    [ Hits: 1008 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Antennas : VHF UHF Microwave
  • The Ventenna - Rugged, disguised 2m, 220MHz, 440MHz, and 2m/440 dual band antennas, HF portable antennas, portable dipoles.
    [ Hits: 4190 | Votes: 17 | Rating: 8.47 ]
  • W3FF Antennas Buddipole - The Buddipole is a hi-tech, take-apart dipole designed for HF portable operations. The antenna uses a multi-band adjustable coil for all bands 40m - 2m.
    [ Hits: 3355 | Votes: 8 | Rating: 9.62 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • A 80/40m DDS controlled QRP CW transmitter - JUMA-TX1 is a 5W CW transmitter for the 80/40m bands. Juha (OH2NLT) and Matti (OH7SV) have had high quality CW keying and a compact size as design goals for this project. No coils need to be wound to construct this transmitter!
    [ Hits: 4164 | Votes: 5 | Rating: 7.80 ]
Technical Reference : Software Defined Radio
  Result Page:  1 2 3 [next]
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