We’re talking about back in the 60’s.

The radio clock WAS the crypto clock (we’re talking about old Gearing and Sumner class destroyers), and one of the watch-change “check-offs” was “Compared Clock to WWV”, or an explanation why not.

73, de Hans, KØHB

“Just a Boy and his Radio”™

From: Richard Knoppow
Sent: Monday, January 10, 2022 03:52
To: [email protected]
Subject: Re: [CW] Ship Radio Room clock

    Different clocks for different purposes. The clock for crypto

was probably an atomic clock or at least a crystal clock of some

sort, while the radio room clock is a reference clock and does

not require high precision. Same for navigation, I suspect atomic

clocks have been used for decades, at least prior to satellite

clocks which are virtually absolute.

On 1/9/2022 4:58 PM, Hans Brakob wrote:

> Maybe so in merchants, but military online crypto systems needed

> precise time for synchronization with their partners.

>

> 73, de Hans, KØHB

> “Just a Boy and his Radio”™

> Master Chief Radioman, US Navy (Ret)

>

> -----------------------------------------------------------------

> *From:* [email protected] <[email protected]>

> on behalf of Richard Knoppow <[email protected]>

> *Sent:* Sunday, January 9, 2022 6:34 PM

> *To:* [email protected]

> *Subject:* Re: [CW] Ship Radio Room clock

> Clocks used for navigation purposes must be as accurate as

> possible but radio room clocks are not used for navigation, only

> log keeping.

>

>

>

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--

Richard Knoppow

[email protected]

WB6KBL

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