Thanks for all the insiteful responses. I have a number of good ideas to work with now.
Since obtaining the Bird, I have bought a 50H slug, so I can also do some comparative checks. Calibration is such an interesting topic, subject to much conjecture and debate. I work with precision alignment of mechanical components and we work in the micron range ( 0.001") on multi ton components. Tolerances are specified, at times, but the meaning is often a grey area. Is the tolerance to the device itself? a global reference? component to component? It can make a big difference at the end of the day, particularly if you don't have any hair left... Appreciate all the help here! 73, Julius n2wn _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com