Coaxialcoils for 9 bands aerial

Coil diameter

Turns

Coaxial length

Coax type

Frequency

50 mm

2.5 - 1/1 open

45 cm. + soldering

RG 223 /U

28.850 MHz

50 mm

5.0 - 1/2 open

88 cm. + soldering

RG 223/U

14.175 MHz

50 mm

9.0 - tight

158 cm. + soldering

RG 223/U

7.050 MHz

50 mm

16.0 - tight

280 cm. + soldering

RG 223/U

3.650 MHz

50 mm

24 - tight

357 cm. + soldering

2 mm CUL

1.940 MHz

50 mm

3.0 - tight

54 cm. + soldering

RG 223/U

24.175 MHz

50 mm

3.5 - 1/1 open

61 cm. + soldering

RG 223/U

21.175 MHz

160 meter is combined with an extension-coil made from 2 mm CUL thread

1/1 open means winded with a gab, the size as the thread diameter

"xx cm. + soldering" means the non insulated lenght

RG 223/U is a slightly better type than RG 58

This is the coils center resonans frequency

In case you've got questions, feel free to contact me----

e-mail
oz6bu@qsl.net
komputer

Regards
OZ6BU / Bondo