[time-nuts] Re: WWVB Loopstick Antenna Project

[glen english LIST]

Yeah that's right, but interference we usually care about  is in band, 
so the rejection is useful  only to deal with things like AM stations 
and NDBs. Wideband interference is usualy the job of the receiver to 
deal with, unless a specific application like say trying to hear a weka 
signal next to a transmitter (a pin drop next to an RB211Â  at WOT) .

Narrow bandwidth is a hinderence for environments with wide bandwidth 
pulses (like power line arcs).

I am doing a new 85kHz system, and while the Q ~ 5 assists with out of 
band, it's only 2nd order, and I have to be careful of aliases with the 
digital receiver of things like AM radio stations, NDBs etc.

glen
>
> This is one reason tuned loop/loopsticks are popular - the reasonably 
> high Q resonance suppresses out of band signals.