You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

sigma iv

I haven't seen such controversy over an antenna design, but the signa iv/
nv 4000 etc should be good performers. how they work is spelled out in
the beginning of this thread. that is, a sleeve antenna. in particular the 3 to
1 length of central monopole to the sleeves version. where the sleeves are
1/4 wave and resonate. And radiate constructively with the top 1/2 portion.

[QUOTE="wa1knx, post: 466227, member: 38843"] [b]sigma iv[/b] I haven't seen such controversy over an antenna design, but the signa iv/ nv 4000 etc should be good performers. how they work is spelled out in the beginning of this thread. that is, a sleeve antenna. in particular the 3 to 1 length of central monopole to the sleeves version. where the sleeves are 1/4 wave and resonate. And radiate constructively with the top 1/2 portion. [/QUOTE]

Top Bottom