Jump to content

Clansman 5.4m Mast, parts


Recommended Posts

I have just been going through the manual and comparing it with the mast I have bought, some parts are missing but hope to source them.

The question I have what is the throwing line made of, 3mm braided? or made up with what's available, also I assume this is weighted and what would be the weight?

Also looking for information on the whip aerial and the wire antenna

 

 

page 2.pdf

Link to comment
Share on other sites

  • 3 weeks later...

The form of whip based on the 5.4m mast that  I have come across has a metal adapter that fits in the top of the upper fibreglass tube to hold as many as 3 or 4 normal 1m vehicle whip sections at the top of the mast, and a wire connected to the adapter, slightly longer than the mast, leads down to the "antenna" terminal of a UK/PRC-320 at ground level (or a UK/VRC-321 TURF remoted from the set). With a decent set of counterpoise wires and a suitable number of rods this covers approximately 7MHz up to 12MHz as a 1/4 wave vertical and 21MHz upwards as a 3/4 wave. The Clansman ATUs will extend this range downwards quite a bit because they add series inductance at the bottom of the wire (like the coil at the bottom of a CB antenna).

What you do need to avoid is a length of wire + rods that is naturally a 1/2 wave because that has a very high impedance at the ends which is hard for an ATU of the design used in the 320 and TURF25W to match to 50 ohms.

Iain

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...