Home |
Search |
Today's Posts |
#11
![]() |
|||
|
|||
![]() -ex- wrote: Q in excess of 1000 is readily achievable. 200-300 is a starting point on a decent dx set. So what's a good inductance to DC resistance ratio for an inductor on an xtal set? The one I wound is about 500uH, and I get a resistance of 3.2 Ohms. Using the formula Q=2*pi*f*L/R, I get a Q for my coil of 981 (@1MHz). But based on its performance, I KNOW it's not that good. I'm picking up a couple stations at night, but just barely. Dave |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Receivers, software, etc. | Shortwave | |||
Simple tests | Shortwave | |||
Question Pool vs Book Larnin' | Policy | |||
a page of motorola 2way 2 way portable and mobile radio history | Policy | |||
BEWARE SPENDING TIME ANSWERING QUESTIONS HERE (WAS Electronic Questions) | Antenna |