9 band

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9 band

387 links

Antennas
  • Discone for HF bands - 80 feet tall Discone was built by Collins Radio Company in the early 1960s
    [ Hits: 1653 | Votes: 5 | Rating: 6.80 ]
Antennas : 10M
  • Dual Band Yagi 28Mhz and 50Mhz  updated - NO Traps or coils, NO matching required. Direct 50 Ohm feed. Easy to build and nothing else like it! Enjoy 50/28 with one feedline to a dual band high gain Yagi by G0KSC
    [ Hits: 1726 | Votes: 2 | Rating: 1.50 ]
Antennas : 4M
  • 70 Mhz Hentenna - The Hentenna was developed by JE1DEU / JH1FCZ/ JH1YST in Japan during the 1970's. The Hentenna is well suited to working on any band
    [ Hits: 2360 | Votes: 2 | Rating: 1.50 ]
Antennas : 6M : 6 meter Yagi Antennas Antennas : Baluns
  • 1:6 Balun for HF - PD2HFE project of a 1:6 Balun for HF Bands using a T-200 toroid core
    [ Hits: 7488 | Votes: 16 | Rating: 4.88 ]
Antennas : Hentenna Antennas : Log Periodic
  • HF Log Periodic antenna - 10 to 20 meters band log-periodic antenna project with SWR Plots, boom lenght and element spacing.
    [ Hits: 3426 | Votes: 4 | Rating: 7.25 ]
Antennas : Quagi
  • 900 MHz Quagi antenna - A 10 elements quagi antenna for the 900 MHz band
    [ Hits: 889 | Votes: 6 | Rating: 5.67 ]
Antennas : Receiving
  • Low-Band Receive Antennas - 98 Pages PPT presentation file on low band receiving antenns by Al Penney VO1NO / VE3
    [ Hits: 1144 | Votes: 3 | Rating: 4.33 ]
Antennas : VHF UHF
  • Build a 2 Meter Vertical Antenna - Homebrew a 2 meter 1/4 wave vertical antenna for the 146 mHz ham radio band
    [ Hits: 2788 | Votes: 8 | Rating: 5.50 ]
  • UHF VHF Folded Dipole - Dual band 2 m and 70 cm folded colinear aerial array project by G2BCX
    [ Hits: 1455 | Votes: 2 | Rating: 10.00 ]
Antennas : ZS6BKW
  • The BKW Multiband Antenna - This is the antenna for those who want to get on HF effectively, and haven't too much space or cash to throw around
    [ Hits: 5018 | Votes: 10 | Rating: 7.56 ]
DX Resources : DX Peditions : 2013 DXpeditions
  • OY/DL3UB - OY/DL3UB , Faroe Islands (29. July - 09. August) verticals + PA (max 500w) WARC bands cw
    [ Hits: 146 | Votes: 0 | Rating: 0.00 ]
Ham Radio : Clubs : Europe : Germany Software : DSP
  • IDSP - IDSP is an app for IPHONE and IPOD Touch. Made by 2 powerful filters, a band pass and a band stop with adjustable bandwidth. Filters are butterworth 4 and 8 poles, sample rate at 44,100 32 bit. Cancel every noise and hear only your qso.
    [ Hits: 1292 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • Broadband Power Amplifier - A MRF141G 3-175MHz Broadband Power Amplifier DL4MEA 02/1998
    [ Hits: 1786 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • 2m and 6m Power Amp - Duoband PA for 6m and 2m by T92T abd YU1AW schematic
    [ Hits: 1304 | Votes: 2 | Rating: 1.00 ]
Technical Reference : Filters
  • Using Band-Pass Filters - Clean Up Your Signals with Band-Pass Filters
    [ Hits: 533 | Votes: 0 | Rating: 0.00 ]
  • Receiver Band-Pass Filters - Third-order Cauer filters can boost performance of multi-transmitter, multi-operator contest stations to the next level. The filters are practical and you don’t need expensive test equipment to align them.
    [ Hits: 658 | Votes: 1 | Rating: 5.00 ]
Technical Reference : Receivers : Regenerative Receiver
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