[Hallicrafters] SR-400, SR-2000 and reflector content!

[Jim Liles]

Seems the gold coin did the trick.  maybe we can now get back to what this reflector was named Hallicrafters not inflation or politics.

We have chased an intermittent anomaly in the SR-400 and SR-2000 for some time and finally got a snapshot.  When aligning the radio we would occasionally see a significant high level overtone at about 280MHz throughout the radio.  Originally thought it was from outside.  Put a spectrum analyzer to work and found it to be 280MHz pulses at 1KHz intervals.  We had seen this in several radio's and traced it to component placement.  Look in the schematic for C198 and C208.  You will find them back to back on a terminal strip --- simply separate them 1/4 inch and the problem will not occur.  I have snapshot's of the scope and spectrum analyzer if there is any interest.   Kindest regards Jim K9AXN