Notes page for K1NQ's
YCCC 6 Band Receive Bandpass Filter
Original article as previously published on the YCCC web -
6-Band
RX Bandpass Filter (pdf)
(updated
2007-Mar-14)
by David Jordan, K1NQ
Notes
and Updates (pdf)
This file contains all the files listed below in one
document - 4 December 2008
W3LPL article on K1TTT website
___________________________________________________________________________________________________
Performance Data -
Band plots from K1NQ (pdf) 7 November 2007
SWR plots from K1NQ (pdf) 14 January 2008
Construction Notes -
PTT Circuit from KK1L Schematic
(jpg) 4 Dec 2008
25 mSec delay, Fast on / slow off on port 1,
Slow on/ fast off on port 2 to help sequence the
6BPF
Input and output caps are 200V, Delay
caps are 16-25V
Notes from N8RA (pdf) (.doc file)- Revision 3.0, 10 October 2007 - Reverse D5, Change transistors, Cap sizing, Jumpers, wire size for L1-3, make C18 and C19 parallel, Jumper P3-P7 help, PCB spacers, J3 male on chassis
Inductor construction table (pdf) (.xls file) updated 29 August 2007, all bands now included
Mechanical Parts placement (pdf) for the TenTec custom enclosure updated 28 August 2007
Updated Parts list (pdf) (.xls file)- updated 10 October 2007
Three modifications from N8RA (pdf) (.doc file) 1 - LEDs too bright, 2 - Lower SWR when off, 3 - Add AUX RX Antenna - 29 January 2008
Last page update - 30 January 2022 - KV1J