[QuadList] Looking for contact to retrieve an old show

[Ted Langdell]

Ted

Ted Langdell
Secretary, Quad Videotape Group
Ted at quadvideotapegroup.com
(530)301-2931

Dictated into and Sent from my iPhone, which is solely responsible for any weird stuff I didn't catch.


> On Jul 10, 2017, at 9:30 AM, David Crosthwait <david at dcvideo.com> wrote:
> 
> Very similar to the CBS “wire-lock“ system to lock remotes to NYC master control. It used a rubidium frequency standard and an audio line to have NYC slowly “steer” the remote sync gen. to be in-phase. While doing hours of OTA digitization of ’68 election coverage and RFK assassination material, it became clear that CBS had this system woking very well. 
> 
> 
> David Crosthwait
> DC Video Corp.
> Archived Videotape Remastering
> 
> www.dcvideo.com
> https://www.facebook.com/dcvideo/
> https://www.dcvideo.com/news/
> 
> 
>> On Jul 10, 2017, at 8:47 AM, Chuck Reti via QuadList <quadlist at quadvideotapegroup.com> wrote:
>> 
>> One technical aspect of this that I do remember was that the NOC was sending all feed points an audio tone on one of the telco lines, to use as a kind of gunlock clock.
>> The tone (don’t remember the freq, could have been 3150) fed a magic box they provided that multiplied it up to 31.5kHz. Our monochrome sync gen had a 31.5 input for this purpose, so we would be in time with everyone else. During pre-feed there were also some tweaks to this, maybe for H-phasing. Our outgoing feed was telco microwave (thanks to Michigan Bell).
> 
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