[time-nuts] WWVB remodulator for the Spectracom 8170...

[paul swed]

Trying to catch up on several hundred work emails. Not exciting.
I absolutely agree that the 60002 would make a lot of sense.


On Sat, Jun 22, 2013 at 1:19 AM, Burt I. Weiner <biwa at att.net> wrote:

> Paul,
>
> This is probably why they sell crystals cut for 60,002 kHz and 60,005 kHz.
>  I ordered 10 of the 60,000 kHz crystals from DigiKey for about a buck
> each.  The 60,002 and 60,005 crystals were only available in lots of a
> bazillion.  It sounds like when I build the oscillator portion of the
> remodulator I may to have to play a wee bit to get the new carrier within
> tolerance of what the 8170 wants to see.
>
> Sorry to hear you've been fighting a flu bug.  A lot of folks I know have
> recently gone through a bought of the flu.  I had it for a week but it was
> mild compared to what some folks I know went through.  I hope you're
> feeling 100% real soon.
>
> Burt, K6OQK
>
> At 09:26 PM 6/21/2013, time-nuts-request at febo.com wrote
>
>> Hello to the group
>> Very good thread. I am recovering from a severe flu. Thats wgy I have not
>> been around.
>> This will be brief.
>> 1Hz off seems to cause an issue.
>> The 60 khz xtals from mouser all seem to always be low.
>> So by lowering the drive and I assume loading. The 20K resistor they come
>> into range.
>> Don't like this and ordered a few xtals from china. Oh lets say 50.
>> Nothing says a 6 mhz xtal and divider can't work. Just adds complexity and
>> cost.
>> By the way the MAS 6180 is available but the distro wants an order of 50
>> at
>> $4 each.
>> I can't take on the role of purchasing and distributing the chips.
>> Regards
>> Paul
>>
>>
> Burt I. Weiner Associates
> Broadcast Technical Services
> Glendale, California  U.S.A.
> biwa at att.net
> www.biwa.cc
> K6OQK
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