[R-1051] Power interlock questions

[mikea]

On Tue, Mar 23, 2004 at 12:04:43PM -0500, flood at Krohne.com wrote:

> Got my R-1051B mounted in a rack (ouch) and checked out the R-1051
> "Plain"....  I hope I used the correct term as I don't want to start up
> something like the R-390 "Non A" war over here. The power interlocks are a
> bit touchy but operational on the "B" but on the "plain" the nylon(?) wedge
> was cracked.  When I manually activate it the radio works fine, or should I
> say worked fine once I figured out that this version has two interlocks,
> one of them switchable!!!  As if this thing isn't complex enough.  Other
> than safety and the "No User Serviceable Parts Inside" concerns.  Is there
> any reason I shouldn't bypass these microswitches?

I suppose you could always call it "Vanilla", or "Original", although
I hope never to see an R-1051-Extra-Crispy or -Chocolate. 

I could be wrong, but I suspect _strongly_ that the switch is there to
prevent "undesired or compromising emanations". I haven't seen any 
data on how loud the R-1051 is when it's powered-up outside its case,
but it might be an interesting project for someone with the right set
of gear. 

If you're out in the middle of the ocean, radio-silent, you _don't_
want someone opening up anything that could radiate enough to let
someone find you. Remember how, in his book _Spycatcher_, Peter Wright
told of catching spies by DFing on the IFs or LOs of their superhet 
receivers, and of listening to the data on the IFs? 

-- 
Mike Andrews
mikea at mikea.ath.cx
Tired old sysadmin