[Elecraft] Quick sanity check on filter test

[Arie Kleingeld PA3A]

I once had a bad xtal filter in my FT1kMP.
It was visible on the s-meter when switching between different BW's. The 
filtering itself was still OK but there was some attenuation (at least 
an S-point or so). Could not measure this with the trx itself (a big 
hurray for the K3 that it can) but I used a signal generator and scope 
to check it.

I replaced the filter and all was up to spec again. So it happens.


The dBV meter of the K3 is a nice measurement system. I have used it 
several times to checkout some filtering and signal splitting networks 
in combo with a signal generator.


73
Arie PA3A


Op 31-5-2013 3:24, Jim Miller schreef:
> I've long suspected the 250hz8p filter in my sub was not working correctly.
>
>
> Anyone else had a bad 8 pole?
>
> I'd like some feedback on this test method to make sure I've got my ducks
> in a row before getting another filter to replace this one.
>
> Thanks
>
> Jim ab3cv
>