xtgabyMay 30, 20201 minMagnetic loop 80 meter band.Calculated coil value of the loop is 6.4 uH as explained in de 40 meter band loop. Target frequency = 3.700 KHz Calculated value for the...
xtgabyMay 27, 20201 minMagnetic loop 40 meter band.Alu tube 22 mm diameter lengt = 6 meter ==> diameter loop = 2 meter. Small loop to insert the signal =1.30 meter for best SWR figures. At...
xtgabyMar 28, 20201 minBuilding and measuring baluns (Part II). Another approach 1 core instead of 2. See remarks on post "Guanella balun 1 core versus 2 separated cores". Return loss measurement: Left: FT 240-43 ...
xtgabyMar 15, 20201 minConversion tablesFor people who are not used to work in dB. Loss compared to input signal. VSWR compared to Return Loss (dB