[time-nuts] Time/freq from digital TV

Don Latham djl at montana.com
Sun Jun 14 02:03:36 EDT 2009


Glenn: Please forgive a slight deviation from the time, but do you know 
what's happening to transmitters in the industry?
Thanks very much
Don Latham
----- Original Message ----- 
From: "Glenn Little WB4UIV" <glennmaillist at bellsouth.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Saturday, June 13, 2009 7:59 PM
Subject: Re: [time-nuts] Time/freq from digital TV


> The digital transmitter could have a GPS based frequency reference.
> I am the CE for a local station (WCIV).
> We do not use any standard other than what is installed in the 
> transmitter.
>
> I have not verified it, but, I think that the UHF transmitter frequency is 
> controlled by an OCXO.
>
> I will try and remember to check on this Monday.
>
> I do know that our Analog transmitter used an ovenized crystal  for 
> frequency control. We were on channel 4.
>
> We definitely are not slaved to the network for frequency control.
>
> 73
> Glenn
> WB4UIV
>
>
>
> At 06:18 PM 6/13/2009, you wrote:
>
>>My radio has many news stories about the end of analog TV.
>>
>>What sort of time or frequency can I get from a digital TV signal?
>>
>>Now that frame buffers are common, does each station use its own master 
>>clock?
>>
>>--
>>These are my opinions, not necessarily my employer's.  I hate spam.
>>
>>
>>
>>
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