Voltage transformer for off center fed antenna 1:4, WOCB14K, Voltage Transformer 1.8–54 Mhz

120.00

2 in stock

SKU: WOCB14K Category:

Description

Voltage transformer for WESCOM OFF CENTRE FED ANTENNA   OCFD antenna 1:4

Need WOCB11K2SO 1:1 balun after 1:4 transformer

Model WOCB14K

1:4 voltage transformer

Freq. 1-54 MHZ

Power – 1kw (1.5kw peak)

DIGI – 500w (1kw peak)

Insertion Loss Less than 0.05db

Choke more than -30db

Spec.

Amidon core FT240-K (K material is used primarily in transmission line transformers from 1 MHz to 50 MHz. AL Value: 458)

Silverplated wire 1.5mm

Polycarbonate box ip65

Cap. 100+100pf 16kv

Other stuff – copper, brass, stainless steel

Balun with 2 out for long side OCFD.

Need OCB11K2SO 1:1 balun after 1:4 transformer

Additional information

Weight1.0 kg
Antenna Construction

HowTo” Model 1:1 Balun – DB1143; DB1152; DB11K
This balun for standard dipole antenna.
Please check all connections when install.
Use this table when install and then tune with analyzer
Wavelength table
Band MHz λ λ/2 λ/4
160 meter 1,81 MHz 165,75 Meter 82,87 Meter 41,44 Meter
80 meter 3,6 MHz 83,33 Meter 41,66 Meter 20,83 Meter
60 meter 5,35 MHz 56,07 Meter 28,04 Meter 14,02 Meter
40 meter 7,1 MHz 42,25 Meter 21,13 Meter 10,56 Meter
30 meter 10,1 MHz 29,70 Meter 14,85 Meter 7,43 Meter
20 meter 14,15 MHz 21,20 Meter 10,60 Meter 5,30 Meter
17 meter 18,1 MHz 16,57 Meter 8,29 Meter 4,14 Meter
15 meter 21,2 MHz 14,15 Meter 7,08 Meter 3,54 Meter
12 meter 24,95 MHz 12,02 Meter 6,01 meter 3,00 Meter
10 meter 28,4 MHz 10,56 Meter 5,28 Meter 2,64 Meter
Note that the shortening factor of the wire is not included in the table. So the antenna will be about 5% shorter in reality.
Full size dipole its 1/2lambda.

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