antentopSince2 July

** PLEASE DESCRIBE THIS IMAGE **
** PLEASE DESCRIBE THIS IMAGE **

 

 

 

 

Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an

Special page devoted to

End Fed 6- meter Zepp Antenna with Resonance at 2- meter Band

Custom Search

 

ANTENTOP- 01- 2020 # 024

End Fed 6- meter Zepp Antenna with Resonance at 2- meter Band

 

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.

 

 

Photo 6 SWR Meter at the Antenna Cable

 

 

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

 

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

 

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

 

 

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.

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

 

 

 

www.antentop.org

 

Page- 71

 

 

68 69 70 71


 

 

Just for Fun:

Map IP Address
Powered byIP2Location.com

Thanks for your time!

Last Updated:

January 30, 2021 20:42

** PLEASE DESCRIBE THIS IMAGE **

** PLEASE DESCRIBE THIS IMAGE **

2003entop