Greetings Group and Happy Holidays!
Over the course of Saturday afternoon/evening and the same on Sunday I was
able to complete the V9.0 main board and 5 of the BPF boards. (160-6m)
I have to commend all who participated in the design evolution. Especially
Tony for what has to be a tiring job of putting together the nicely done
kits! The boards are top quality. No problems with plated feed thru's,
lifting traces or any of the typical nightmares that can sometimes be
associated with poorly made things now days. Most tedious part was winding
the 160M L1 coil. Did find I had to adjust the turns count on just about
all the L1 inductors to get the specified inductance as measured on my
Sencore Z-Meter. Not usually more than removing one turn. I may try to
sweep them using a tracking generator to see what the response curves came
out to be.
I haven't powered up any of the stuff yet as I am waiting on the LO as are
others. I have done multiple close up inspections of the SM components and
verified component layout. I did the stuff the board assembly process as I
have been doing component level stuff for over 30 years....but the Build
Notes as provided by WB5RVZ are excellent.
Did get the first real opportunity to use my hot air station on this build
and it was a nice way to mount the IC's. A run of solder impregnated flux
from a hypodermic down each row of pads, drop the chip in place and run the
hot air down each row and it's done. No bridges, no mess and water based
flux. Tooth brush and a bit of warm water once all the SM components were
on board and all is clean.
Will start the process of downloading some software to drive the radio with
today. Also will start looking at some type of enclosure to mount it all in
once the switchable BPF board is ready.
Anything you can impart on mounting woes and/or suggestions would be gladly
I have a few heavy cast aluminum RF tight enclosures that might be good.
Looks like some special consideration for isolating the antenna connector
may be in order from the description. Again any suggestions?
I am also interested in using the RX between 500Khz and 1700Khz for LW and
MW reception. Anyone found a clean way to do this?
Thanks to everyone who supports the development of this project. I hope I
can join that effort once I get over the learning curve a bit.