[CQ-Contest] K-3 Info

Bill Tippett btippett at alum.mit.edu
Sat Dec 22 11:50:36 EST 2007



K4XS:
 >I need to do  some more research on the filters.  There are
spots for five and two of  them will be taken up by the 2.1 kHz
filters for split SSB operation.

         Bill this is incorrect.  There are slots for 5
roofing filters PER receiver, so you could put one 2.1 in
the Main RX and another in the Sub RX.  Remember that even
the stock 2.7 kHz is already lower than the narrowest
roofing filter in ANY other rig on the market (including
IC-7800, FTdx9000, etc) with the sole exception of Orion.
Ultimate selectivity in SDR rigs like all of these is done
with DSP filters in the final IF stage, not in the 1st IF
roofing filter.

         Now Mario has another American company to make
sarcastic comments about.  Unfortunately only American
companies (Ten-Tec, Elecraft and Flex-Radio) have yet
figured out how to listen to and respond to customers!

                                         73,  Bill W4ZV

                                         73,  Bill  W4ZV



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