1123-A: Difference between revisions
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{{GR Product | |||
|model=1123 | |||
|codes= | |||
|class=frequency standards and meters | |||
|summary=Syncronometer | |||
|image=Gr 1123A front2.jpg | |||
|caption=General Radio 1123-A Syncronometer | |||
|series= | |||
|introduced= | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
''please add'' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1123-A Digital Syncronometer}} was introduced in {{Catalog S}} and remained available until {{Catalog U}}. | |||
It is basically a digital clock with circuits that enable it to be synchronised with standard time signals, originally intended to be used in conjunction with an [[1124]] time signal receiver system. | |||
The 1123-A has three digitally delayed outputs, with delays selectable by thumbwheel switches. | |||
To check the frequency of a signal (e.g. a 1 MHz standard), that frequency it is divided down and used as an external reference to the 1123-A. | |||
The first sync output is used to trigger an oscilloscope, which displays the Loran C (or WWV signal). | |||
The delay of the second pulse is adjusted with the 1123A controls to be coincident with a peak or a zero crossing of the reference signal, e.g. Loran-C. | |||
==Specifications== | ==Specifications== | ||
Revision as of 23:30, 11 November 2024
The General Radio 1123-A Digital Syncronometer was introduced in Catalog S (1965) and remained available until Catalog U (1970).
It is basically a digital clock with circuits that enable it to be synchronised with standard time signals, originally intended to be used in conjunction with an 1124 time signal receiver system.
The 1123-A has three digitally delayed outputs, with delays selectable by thumbwheel switches.
To check the frequency of a signal (e.g. a 1 MHz standard), that frequency it is divided down and used as an external reference to the 1123-A.
The first sync output is used to trigger an oscilloscope, which displays the Loran C (or WWV signal). The delay of the second pulse is adjusted with the 1123A controls to be coincident with a peak or a zero crossing of the reference signal, e.g. Loran-C.