Report of my recent operation in portable operation using a Yaesy FT-857D and an end-fed antenna.
Double Bazooka Antenna for 40 meters
Planning to setup a double bazooka antenna for 7 MHz during next months to verify performance of the Gap Titan DX on that band. I feel like the GAP is not so well performing on that band and I’m goint to setup for the CW portion of the 40 meters. This is the basic schema…
Playing with the Graphic Tablet
Santa recently dropped this lovely gift to my son…..Well, I had to learn a little bit about how to use it before I taught him. I got inspired by the IARU World Amateur Radio Day leafleft..
Short Vertical for 160 meters by I5CDF
Vertical Folded antenna for 160 meters band
FLRIG on Raspberry Pi4 as RTX Director for Mac OS apps
I’ve recently introduced a Raspberry PI 4 as main remote RTX controller for my Kenwood TS-590s. This allows me to control the Kenwood TS-590S from the iMac simultaneously with several applications, including RUMLOG, FLDIGI, WSJT-X. The issue Could not control simultaneously my transceiver directly from two or more applications. Additionally remote connection from the internet…
4 Element Yagi for 6 meters
Dimentions Elements A, B, C spacing between elements 119.38 cms. E 1 Reflector 1: 304,8 cms. E 2 Radiator : 274,32 cms. E 3 Director : 271,15 cms. E 4 Director: 269,24 cms. D Distance with gamma match: 35, 56 cms aprox. E Gamma spacing: 7,62 cms. F Gamma tune: 50,8 cms x 12,5 mm…
Some Plain Facts about Multiband Vertical Antennas
About vertical antennas by W1ICP
The Clemens Match
The Clemens match is easy to make and reliable, and is preferable to a single Gamma match as it is balanced. I was first introduced to the Clemens match by G4IGO several years ago, Ken builds his in a slightly different way by putting the capacitor at the feeder end and connecting the far end…
SWL longwires
Taken from a usenet post by John Doty in 1996 In article <9612182335114148@mogur.com> len.anderson@mogur.com (Len Anderson) writes: > TV>> I wonder if a longwire balun would help match the impedance & provide a> TV>> better signal? > No, it will (primarily) change only the magnitude of the antenna> impedance over frequency. Some bands will have…
Halo for 6 meters band
A good antenna that can be used for the car as well as the house is an HALO. This antenna maintains good omni-directional horizontal polarization. Basically the antenna is a half wave dipole bent into a circle,BUT shorter than a dipole for this frequency. The circumference is 60-70 inches. By useing the gamma match (see…