[time-nuts] Questions about Austron 5000 Loran C receiver

DaveH info at blackmountainforge.com
Sun Mar 4 02:34:11 UTC 2012


Just for grins I Googled DECUS and it is much changed but still around:

http://www.decus.org/

Dave 

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Bob Camp
> Sent: Saturday, March 03, 2012 5:56 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Questions about Austron 5000 Loran C receiver
> 
> Hi
> 
> Time to get out the paper tape for 4K Focal and do some code...
> 
> Bob
> 
> 
> 
> On Mar 3, 2012, at 8:19 PM, "Don Lewis" 
> <dlewis6767 at austin.rr.com> wrote:
> 
> > I still have a PDP/8 with 4k core memory out in the garage. 
>  (a jillion RTL
> > cards in it).  It was free to e then, broken, ...I had to 
> find t\all the bad
> > transistors.... 
> > 
> > During college, ..I would sit in the floor with that thing 
> and toggle in
> > small programs in machine language to count up and down, seemingly
> > impressing everyone with the binary lights dancing on the 
> front panel.
> > 
> > ...this all makes me want to pull it out and 'toggle' some 
> more, again....
> > 
> > -Don
> > 
> > 
> > 
> > ----------------------------------------
> > 
> > 
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On
> > Behalf Of Bob Camp
> > Sent: Saturday, March 03, 2012 6:55 PM
> > To: Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] Questions about Austron 5000 Loran 
> C receiver
> > 
> > Hi
> > 
> > Ahhh... The days of toggling the boot loader in with the front panel
> > switches. So much fin.
> > 
> > Bob
> > 
> > 
> > 
> > On Mar 3, 2012, at 7:45 PM, Jim Lux <jimlux at earthlink.net> wrote:
> > 
> >> On 3/3/12 4:13 PM, Azelio Boriani wrote:
> >>> Geez, I have read and I don't think it is possible to 
> replicate the CALOC
> >>> PDP-8/E software nor it is useful to use the Austron 5000 
> Loran receiver,
> >>> my understanding is that it was used to control and steer 
> the system. It
> >>> seems they were in use until the year 2000! Maybe that 
> using MATLAB it is
> >>> possible to exploit the Austron 5000 functionality 
> nowadays, provided
> > that,
> >>> someway, the 12bit samples from the Austron are 
> transferred to the PC.
> >>> Anyway to start with, at least the receiver connectors pinout is
> >>> mandatory...
> >>> 
> >> 
> >> There are PDP8 emulators out there.  Not to mention actual
> > microcontrollers that implement the PDP8 instruction set 
> (aside from the
> > no-doubt out of production Intersil part).
> >> 
> >> And a fair number of FPGA implementations in your choice 
> of language.
> >> 
> >> While it might not be as scenic as that nice plastic see 
> through housing
> > with all those discrete DTL circuit cards in the original 
> straight 8.  I
> > used a 8/i way back in the early 70s and I was bummed that 
> it was just a
> > single box in the rack.
> >> 
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