On 6/11/2018 9:50 AM, Jim Thomson wrote:
## Is there room inside those rig experts units to install a .01 uf disc ceramic cap ?? A 50-100 volt cap would be smaller diameter than a 1 kv cap. There is your DC
On my 160 meter vertical I have been able to pull 1/2 inch long arcs to ground on a perfectly clear day. That would of course blow up nearly any capacitor. Instead, you need an inductor to ground. Similarly, "touching the leads together" before connecting the analyzer is poor advice for obvious reasons such as the fact that the antenna will charge back up to high voltages in less than a second.
## On a similar note, re the MFJ-259B. Can a HP filter be used, to kill AM broadcast junk...or will the HP filter screw things up too much ? Jim VE7RF
An HP filter would royally screw up an network analyzer including the 259, unless you calibrate it out, which the 259 is incapable of. Even on a good VNA, it is tricky to accurately calibrate out a 9 element elliptic filter. That is why the answer is to get the AA-55 and be done with it. Rick N6RK _________________ Topband Reflector Archives - http://www.contesting.com/_topband