[time-nuts] LTE-Lite module

[Thomas S. Knutsen]

The potatochips are quite excelent high speed devices, and by selling them
on e-bay, they make it avaible to us who are not able to go through the
normal supplier chains.

Br.
Thomas.

2014-10-19 2:48 GMT+02:00 Tom Miller <tmiller11147 at verizon.net>:

> This looks pretty interesting:
> 74G series PO74G74
>
> http://www.ebay.com/itm/330551715157?_trksid=p2060778.
> m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT#ht_411wt_664
>
> 600+ MHz cmos 3.5 volt
>
> Tom
>
>
> ----- Original Message ----- From: "S. Jackson via time-nuts" <
> time-nuts at febo.com>
> To: <kc0wjn at gmail.com>; <time-nuts at febo.com>
> Sent: Saturday, October 18, 2014 5:40 PM
> Subject: Re: [time-nuts] LTE-Lite module
>
>
>
>  Dave, et.al.,
>>
>> upon popular request I put together a PDF of my email describing how I
>> generated a low-phase-noise 10MHz output from the CMOS 20MHz output of the
>> LTE-Lite GPSDO. Here it is.
>>
>> No guarantees whatsoever guys, and it does take good equipment, a very
>> steady hand, and a lot of experience to put this together and make it work
>> properly.
>>
>> This design can work up to 145MHz according to the 74LVX74 datasheet if
>> powered at 3.3V.
>>
>> bye,
>> Said
>>
>>
>> In a message dated 10/18/2014 14:09:54 Pacific Daylight Time,
>> kc0wjn at gmail.com writes:
>>
>> Hi,  Said.
>>
>> I would be interested in having a copy of your "app-note", if  that is
>> possible. I'd like to purchase one of the GPSDOs, but will need to  wait
>> for amonth or so.
>>
>> Thanks.
>>
>> Cheers,
>> DaveD
>>
>> On  10/18/2014 12:19 PM, S. Jackson via time-nuts wrote:
>>
>>> Hi  guys,
>>>
>>> lots of questions, let me try to answer  some of these. Bob, David, et.
>>>
>> al,
>>
>>> thanks for answering some of these  already!
>>>
>>> Dave, as Bob said "it depends on your  application" -- and your time
>>>
>> frame.
>>
>>> Also, please check the FAQ for an  answer on the external TCXO
>>>
>> requirement,
>>
>>> specifically item 35. in the  FAQ on the Ebay website for the product.
>>>
>>> Jim, I  ended up doing the "appnote" in email format, and sending out a
>>>  description, schematics, PN plot, and photos yesterday, please check
>>>
>> your
>>
>>> emails. I won't do a formal appnote, sorry no time.. I hope the
>>>
>> description of
>>
>>> what I wired-up yesterday is good enough for folks to  try the same.
>>>
>>> Ernie, as mentioned here the price  is $185 plus shipping on Ebay for the
>>> entire kit. Shipping is  calculated by Ebay, and should be a flat-rate
>>>
>> of $10
>>
>>> in the  continental US
>>>
>>> Hal, MY BAD!! I should have known  better and super-imposed both the
>>> original 20MHz and 10MHz plots on  the same plot. I will do so shortly.
>>>
>> On the
>>
>>> table in the plot: the  TimePod tries to determine spurs, and display
>>>
>> them  on
>>
>>> the upper  right hand of the plot in a table, and with the phase noise
>>>
>> being
>>
>>> as  clean as it is I guess the TimePod software could only find two
>>> spurs,
>>>  one at  0.8 and one at 0.9Hz offset from carrier, which was not even
>>>
>> shown in
>>
>>> that plot  since it starts at 1Hz.
>>>
>>> Thanks so much for your feedback, lively discussion, and good  questions
>>> guys.
>>>
>>> I hope that answers all  questions,
>>> bye,
>>>  Said
>>>
>>>
>>
>>
>>
>
> ------------------------------------------------------------
> --------------------
>
>
>
>  _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/
>> mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>



-- 

 Please  avoid sending  me  Word  or  PowerPoint  attachments.
 See  <http://www.gnu.org/philosophy/no-word-attachments.html>
PDF is an better alternative and there are always LaTeX!