[Elecraft] Err TXF

[Bill W4ZV]

G4ILO wrote:
> 
> 
Perhaps so, but it creates a problem if my filter is actually a bit narrower
than 2.7KHz. There was actually "2.39KHz" written on my filter PCB, as well
as the sticker specifying the offset. I don't know if this is the actual
bandwidth that was measured when my filter was tested. The manual doesn't
say anything about this. But it's a good guess that's what it is.


I seriously doubt it since the 5-pole has been measured at >2.9 kHz (6 dB
BW).  It's easy enough to check without unnecessary speculation.  

http://www.zerobeat.net/mediawiki/index.php/K3_Roofing_Filters

73,  Bill

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