[Milsurplus] LM calibration book...make your own...

Tue, 16 Dec 2003 16:35:38 -0800

On 16 Dec 2003 at 14:53, [email protected] wrote:

> 
> In a message dated 12/16/03 11:07:09 AM, [email protected]
> writes:
> 
> 
> > Does anyone know of a source of calibration books for the LM
> > frequency meter?

Bob Keys, NA4G and Russ Schroeder W2DYY in 1996 wrote a 
special program to print calibration books for both the LM and 
BC-221 meters. Bob says that the calibration books written by 
their program won't be as accurate as the originals, being 0.5 
Khz off at the ends of the range in the HF range, and 50 cycles 
at the ends of the range in the LF range, but they should suffice 
for most purposes. The reason for the inaccuracy is the non-
linearity of the BC-221/LM tuning capacitor.

If anyone wants this set of programs, I will make a ZIP file of 
them and e-mail it to those who want it. I am sure that they 
won't go via the list.

Bob and Russ made these programs public domain quite some 
time ago.

Ken Gordon W7EKB