[TowerTalk] Using Stubs to Reject Harmonics

[Jim Brown]

On Wed, 3 Feb 2010 20:24:47 EST, TexasRF at aol.com wrote:

> For example, a 100ft length of RG213 has about 10 dB loss at 432 MHz

That would be some pretty awful coax -- Belden's RG8X (9258) is only 
6.6dB/100 ft at 400 MHz, and a decent RG8-sized coax is on the order of 
3dB/100 ft. 

Yes, an infinitely long line looks like a resistor equal to its own Zo, 
even with an open circuit as a load but it takes more like 1,000 ft to 
approach that at 432 MHz. 

73,

Jim K9YC