[TowerTalk] Rebuilding AV640 matching network.

[K8RI]

The AV640 matching network is relatively simple, a current, or choke 
balun wound on 2 ferrite core, and I believe a 4:1 transformer wound on 
two cores.

#31 material should work well with RG303 for the current balun, but it 
appears to be a bit anemic for handling the legal limit. I think the 
same core material will work for the 4:1 transformer.

Is there another relatively compact/small coax that is rated for the 
full legal limit?

73

Roger (K8RI)