So, Handic
SWR meter provided exactly the same SWR that was measured by me
during the initial testing of the 6- meter band antenna hanged
up to the ceiling. The differences in SWR measured with MFJ- 259
and Handic SWR meter I may only explained
by RF interferences near the antenna. The additional RF current
influenced to the MFJ- 259. When I measured the antenna parameters
at 50- W power the RF interferences do not hinder the Handic
SWR meter. For the 6- meter Zepp antenna
the MFJ- 259 as well found resonance at 142- MHz, but I cannot
verify the reading with VHF transmitter. Table 3 shows data for the 2- meter band.
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Photo 6 SWR Meter at the Antenna Cable
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Table 1 Antenna Parameters of the 6- meter Zepp Antenna Installed at 3.5- meter Height at the Backyard
Measured with the MFJ- 259
F, MHz
|
47.0
|
47.5
|
48.0
|
48.5
|
49.0
|
49.5
|
50.0
|
R +X
|
51+31
|
32+14
|
30+4
|
41+20
|
66+23
|
89+0
|
65+20
|
SWR
|
2.0
|
1.7
|
1.6
|
1.6
|
1.6
|
1.6
|
1.5
|
F, MHz
|
50.1
|
50.5
|
51.0
|
51.627
|
52.0
|
52.5
|
53.0
|
R +X
|
61+20
|
47+16
|
45+8
|
50+0
|
50+10
|
39+14
|
28+5
|
SWR
|
1.5
|
1.4
|
1.2
|
1.0
|
1.2
|
1.5
|
1.8
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Table 2 Data of the 6- meter Zepp
Antenna Installed at 3.5- meter Height at the Backyard Measured
with the Handic SWR Meter
F, MHz
|
50.0
|
50.1
|
50.5
|
51.0
|
51.5
|
52.0
|
52.5
|
SWR
|
1.1
|
1.1
|
1.2
|
1.4
|
1.5
|
1.7
|
2.0
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Table 3 Antenna Parameters of the 6- meter Zepp Antenna Installed at 3.5- meter Height at the Backyard
at the 2- meter Band Measured with the MFJ- 259
F, MHz
|
140
|
141
|
142
|
143
|
144
|
145
|
146
|
R +X
|
30+8
|
55+13
|
41+7
|
36+14
|
71+27
|
93+4
|
104+4
|
SWR
|
1.8
|
1.3
|
1.2
|
1.6
|
1.8
|
1.8
|
1.99
|
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Antenna was tested in the Air. Straight away it was
received very laud VE3UBL/B beacon. The beacon is placed near
90-km from me, it has 8-W and works with omnidirectional Turnstile antenna. At the time I received several beacons from the USA.
However the ARRL VHF Contest
was disappointed for me. No any propagation, no one QSO. I monitored
50.098- 50.100- MHz and VE3UBL/B. Beacon was strong but no any
station on the band. QRZ.COM as well showed table- No Propagation on the 6-meter Band.
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Sometimes I received a burst of
signals at the 50.098- MHz but it was several seconds burst where
I cannot recognize the callsigns...
OK, will wait for Sun activity
and for propagation on the 6- meter band.
73! de VA3ZNW
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