[Milsurplus] TBW Redact - "Chirp"

[Richard Brunner]

w8au at sssnet.com wrote:
>> Does the top mounted antenna relay conduct mechanical disturbance down 
> to the ECO section on bottom?   It is a HUGE relay...
> 
> The TCS sets exhibit this phenomenon, but it doesn't show up as a 
> chirp.  It shows up as slight FM modulation of the osc, which gives the 
> "make" an authoritative "clang" sound.  Not displeasing, but definitely 
> a "TCS signature."   :-)

I have to say yes, because there is nothing else moving in there. 
Whether it was a chirp or FM is much the same, an authoritive thump or 
bang key-down.  I thought about shock-mounting the keying relay, but 
there is little room in there.

Richard Brunner, AA1P