Introduction OM0A Measurement results 2EL. DK7ZB Yagi at 20 meters

Measurement results 2EL. DK7ZB Yagi at 20 meters

SHARE
Meranie DK7ZB yagi
Measurement DK7ZB Yagi

Antenna analyzer had to answer some properties DK7ZB Yagi at 20 meters. Since aluminum boom was available, I used to test the long iron rod. Fastening elements on the boom is simple. Small aluminum stožiarik with 4.5 m height was to break. Placing the antenna which only compounded by the amount of weight of the boom and a number of cables garden – telephone lines, 5-band dipole, enlarged mast, garden tree house.

First I turned to an antenna, that was the furthest away from the house. Reflector cruise telephone cable. Antenna Analyzer showed resonance below the band. I turned the antenna around 50 degrees and there are measurement results 2el. DK7ZB Yagi for 20 m in height 4.5 m:

Frequency Impedance PSV
13,85 MHz 94 + j0 ohm 1,89
13,90 MHz 87 + j0 ohm 1,74
13,95 MHz 77 + j0 ohm 1,56
14,00 MHz 66 + j0 ohm 1,33
14,05 MHz 63 + j0 ohm 1,26
14,10 MHz 57 + j0 ohm 1,15
14,15 MHz 52 + j0 ohm 1,05
14,20 MHz 50 + j0 ohm 1,00
14,25 MHz 48 + j0 ohm 1,03
14,30 MHz 46 + j0 ohm 1,06
14,35 MHz 45 + j12 ohm 1,32
14,40 MHz 43 + j21 ohm 1,60
14,45 MHz 41 + j26 ohm 1,88
14,50 MHz 40 + j31 ohm 2,06

Measurements of antenna analyzer confirmed, that the antenna is set into the band.

SHARE
Previous ArticlesActivity increases
Next articleBand filters in the contest
William OM0AAO / OM0A
Since I started regularly participate in the amateur race, separately for the first VHF, later in the club OM3RKP also VKV. Since gaining access to the TA to work in this area only, primarily contesting (CQWW, IARU HF, SSB Liga, Dippeth and other).