[R-390] BFO Dial

[Raymond Cote]

Why call it mis-information Roger?   You were not I in Honolulu at Pearl Harbor with me when I talked with the military. They used occasionally RTTY 5 group code to send messages. I used 5 diget grouped codes at sea via RTTY to receive data for ONR in the late 80's when in the Bearing sea. It the had to be decoded manually. I did not have an R 390A then but a Scientific Radio (now Harris). So why not all of the above?  There are most likely other reasons and examples
Just my 2cents
Ray

There are men running governments who shouldn't be allowed to play with matches. 

Will Rogers
-------------😉

> On Aug 4, 2014, at 16:46, "Roger Ruszkowski" <flowertime01 at wmconnect.com> wrote:
> 
> 
> Glenn,
> 
> Funny you should ask,
> I will explain these funny dials to you and then you will
> have to self destruct in 60 seconds.
> 
> The micro dials as they were called were Military stock  additions.
> The BFO micro dials were used for RTTY work.
> The dial made it easier to set the BFO pitch to center the audio
> into the RTTY demodulator and thus copy RTTY.
> 
> The signal corps used them in their RTTY installations.
> 
> So much miss information OH look the receiver has a micro dial it must have
> been a spook receiver. No it was a signal corps HF link receiver.
> The spooks did use them but not exclusively.
> 
> What are you going to use 10 to 20 for?
> 
> Try Fair Radio in Ohio to round out your needs.
> 
> There are other dial counters available if you can not find the micro dials as used items.
> 
> Roger AI4NI
> 
> 
> 
> 
> -----Original Message-----
> From: Glenn Scott via R-390 <r-390 at mailman.qth.net>
> To: r-390 <r-390 at mailman.qth.net>
> Sent: Mon, Aug 4, 2014 3:17 pm
> Subject: [R-390] BFO Dial
> 
> 
> Hi Group,
> 
> 
> I am looking for a source for the vernier dials that are occasionally seen on 
> R390A's, Looking for a quantity of 10 to 20 or more but will buy whatever you 
> have if it's in decent shape. A few scratches is no problem just as long as they 
> work well and can be made to look decent without surgery.
> Does anyone know if there was a particular contract that called for these dials 
> or were they added on by Hams later? Any history about these would be 
> interesting.
> 
> 
> 73,
> 
> 
> Glenn WA4AOS
> DSM Labs (dot com)
> 864 684 2956
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