Topband: analyzer filters

[Richard (Rick) Karlquist]

> The typical bandpass or high pass filter will not be usable 
> with an Antenna Analyzer. They act like transmission lines 
> of various long lengths, modest to high loss, and with surge 
> impedances different than 50 ohms near the cutoff 
> frequencies.

True for most analyzers, however, the AIM-4170 allows you to
calibrate out any transmission line or filter in front of the unit.

Rick N6RK