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-   -   Ladder Line and Interference from Metal Objects (https://www.radiobanter.com/antenna/78762-ladder-line-interference-metal-objects.html)

Bob Miller September 28th 05 06:54 PM

On Wed, 28 Sep 2005 14:14:51 GMT, Cecil Moore wrote:

Bob Miller wrote:
The instruction book I got with my mfj 989c tuner has a section on
ladder line lengths to gravitate to, or avoid, depending on band. It
can be downloaded free from the mfj web site.


Hopefully, the lengths to avoid are associated with specific
loads. Avoiding 1/4WL of ladder-line when feeding a 1/2WL
dipole may be good advice but 1/4WL of ladder-line is ideal
for feeding a one wavelength dipole.



They're fairly specific about loads -- their manual is at
http://www.mfjenterprises.com/produc...rodid=MFJ-989C with pages
7 and 8 talking about feedline lengths.

bob
k5qwg

Rockinghorse Winner October 2nd 05 06:52 AM

Bob Miller writes:

On Wed, 28 Sep 2005 14:14:51 GMT, Cecil Moore wrote:


Bob Miller wrote:
The instruction book I got with my mfj 989c tuner has a section on
ladder line lengths to gravitate to, or avoid, depending on band. It
can be downloaded free from the mfj web site.


Hopefully, the lengths to avoid are associated with specific
loads. Avoiding 1/4WL of ladder-line when feeding a 1/2WL
dipole may be good advice but 1/4WL of ladder-line is ideal
for feeding a one wavelength dipole.



They're fairly specific about loads -- their manual is at
http://www.mfjenterprises.com/produc...rodid=MFJ-989C with pages
7 and 8 talking about feedline lengths.


bob
k5qwg


Wow! I'll have a look a this ASAP.

--
R*Horse rwinner.blogspot.com


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