7mhz

7mhz

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• Full Wave Delta Loop for 7 MHz - An homebrew project of a full wave delta loop antenna for the 40 meters band with dimensione, picture and assembling instructions in Indonesian
  [ Hits: 780 | Votes: 1 | Rating: 8 ]

• 40m Magnetic Loop Antenna - A coaxial cable tuneable magnetic loop antenna for 7MHz. This experimental antenna does not require a tuning capacitor
  [ Hits: 3592 | Votes: 4 | Rating: 8.75 ]

• A very efficient half size 40 meter Vertical Antenna - A vertical antenna project for the 7MHz made with some spare parts. Based on a broken 20 foot fishing pole, it is based on a good ground system made with radials and a capacitive hat done to increase the global radiation resistance of the antenna. A custom loading coil is also included in this project to perfectly tune the antenna to the CW portion of the 40 meters band.
  [ Hits: 736 | Votes: 4 | Rating: 8.5 ]

• Portable magnetic loop antenna - A portable loop antenna, made with a 3 meter loop resonates with the chosen capacitor from just below 7MHz to about 28.300MHz which makes it usable on the bands from 40m to 10m.
  [ Hits: 167 | Votes: 2 | Rating: 9 ]

• The M0CVO HW-42HP OCF Antenna - A multi-band off centre fed dipole, designed to operate on all bands from 40m (7MHz) to 6m (50MHz). Author claims it will operate on 40, 30, 20, 17, 15, 12 and 10m without an ATU (SWR <3:1) plus 6m with an ATU.
  [ Hits: 274 | Votes: 0 | Rating: 0 ]

• 137MHz Quadrifilar Antenna - This version of the 137MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey Taming the QFH which appeared in the March 1997 RIG magazine. This article contains detailed 3D pictures and models and detailed pictures.
  [ Hits: 232 | Votes: 3 | Rating: 7 ]

• JD1BMH Ogasawara Isl 2023 - JD1BMH April 22 2023 Sat till May 5 2023 7MHz 28MHz CW, SSB, RTTY IOTA AS-031, QSL via JG7PSJ
  [ Hits: 15 | Votes: 0 | Rating: 0 ]

• bladeRF - Nuand bladeRF 2.0 Software Defined Radio (SDR) 47MHz to 6GHz, 2x2MIMO, 61.44MHz sampling
  [ Hits: 148 | Votes: 2 | Rating: 5.5 ]

• 27MHz CB to 50 MHz Amateur Use Conversion - This page details (in brief) the component changes to modify a Cybernet series 27MHz CB transceiver to 50MHz.
  [ Hits: 120 | Votes: 0 | Rating: 0 ]

• 7 MHz QRP transmitter - A 40 meter QRP - Transceiver by DL5NEG
  [ Hits: 607 | Votes: 0 | Rating: 0 ]

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