Or, get the 500Hz 8-pole from Inrad... 73, Ross N4RP
On 3/7/2015 12:29 PM, Joe Subich, W4TV wrote:
If you operate any CW or RTTY you will want the 400 Hz filter. IMO, that's the best all around filter - particularly if you have any idea of adding the KRX3 in the future since you will not need to try to match five-pole filter center frequencies after the fact.
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