[HBQRP] requesting support for designing a qrp transceiver

shubham tiwari vu3sxn at gmail.com
Thu Jan 9 03:28:30 EST 2014


hi everyone,
for the past one month i am trying to make a new QRP transceiver for
20m and 40m using old design with MC1496 and MC1350 with excellent
performance,i had gathered all the components,toroids,IC....also i am
trying to incorporate few new helpful IC,like the fll vfo, SSM2166
IC,MAX293 ic....my sole aim is to design a hf dual band ssb/cw
transceiver which is not a compromise and would work very nice ,i had
calculated and tested all the values of band pass filter ,crystal
filter and the low pass filter for 14.2mhz and 7.2mhz center frequency
using amidon toroid’s so that it becomes easy to replicate ......
i had completed 90% of the circuit design,but m having few problems
with the bfo design and IF frequency crystal filter..

help and advice will be highly appreciated ,please msg or email me if
anyone's willing to help me out...

many thanks

shubham
vu3sxn
email -- vu3sxn at gmail.com


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