On Mar 6, 3:16*am, "Larry" wrote:
NRD-535 *STOCK
Mostly listen to Utility stations therefore which would be the best to
install: the ECSS board or the BWC unit (continuous bandwidth control)?
LARRY

From what I recall, there were several production changes. It is
important to establish which version is in your hands first (serial
number) . Did you look inside the receiver to know for sure which
modules are installed ?