[JRC] Unblocking the NRD-545

[Chris Smolinski]

While scanning through the service manual, I noticed two resistors, 
R24 and R24 on the mainboard. They apparently set the operating range 
for the wideband converter. Default configuration for the US is 
neither installed. Installing R25 apparently opens up the receiver to 
full coverage. In parallel with these resistors are R12 and R13 on 
the wideband converter itself, which are easier to get to.

Installing R13 (zero ohm short) has my 545 tuning everywhere. Not 
that there's much up there to listen to. Plus the sensitivity leaves 
a lot to be desired. I'll be sticking with my Icom R-7000 for VHF and 
UHF reception. Just one of those mods you feel like doing, even if 
you'll never use it ;-)

BTW, I am very impressed with the physical layout and design of the 
inside of the 545. It is much improved over the rats nest of my Icom 
R-71A.
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Chris Smolinski
Black Cat Systems
http://www.blackcatsystems.com