Hi Ulrich,
Concur Dave's advice on the Inrad filters. Their 125Hz @ 455kHz
filter, although it might seem ridiculously narrow by 'normal' standards
is perfect for LF use. In fact it's super for conventional CW, PSK31
and such at UHF (topband and above) too.
Cheers,
Steve W3EEE
I would recommend getting a good filter for the 455 IF, it really makes the
receiver so much better. The skirt selectivity of the 8MHz filters is not as
good as the 455 ones . . .
Try International radio for a good range of filters at slightly less money
than the Kenwood ones.
Their web-site is at http://www.qth.com/inrad/
73. Dave G3YXM.
| 