[Elecraft] KX3 Roofing Filter Question

[Don Wilhelm]

Mark,

If the roofing filter was added to your original order, it will be 
calibrated at the factory (even if it is a kit).

If you add the roofing filter later, you will have to do the calibration 
for optimum results.

73,
Don W3FPR

On 1/29/2018 5:31 PM, Mark Petiford via Elecraft wrote:
>   Re:  "If you do choose the roofing filter, be certain you do the calibration
> if it is a kit."
> 
> 
> Don,
> 
> My kit build KX3 instruction manual says that I don't have to do the calibration if I ordered the filters WITH my KX3 kit:
> 
> "If you received the optional KXFL3 filter with your kit, you do not need to perform theReceiver Sideband alignment procedure referenced in the Owner’s manual and describedin detail in the KXFL3 option manual. That procedure was done for you at the factory."
>