[time-nuts] Inexpensive Alternative to a 5120A
Bob Camp
kb8tq at n1k.org
Sun Oct 9 19:16:57 EDT 2016
Hi
> On Oct 9, 2016, at 6:18 PM, Chris Albertson <albertson.chris at gmail.com> wrote:
>
> Likely the lowest cost way to get into that is with a TV tuner USB
> dongle. They cost about $20. People are able to get about 2.4 mega
> samples per second.
Except that you need about 30 mega samples ...
> Not a lot of dynamic range but you can control
> that. Use a mixer to move the signal of interest into the range
> the tuner can handle. Tuniers typically tune from about 20Mhz to
> 1Ghz or 2Ghz approximate.
You also need a very specific dual ADC architecture as described in the paper. Their
hardware was > $1K and probably the only suitable system at that low a price.
No free lunch :)
Bob
>
>
> On Sun, Oct 9, 2016 at 12:05 AM, Paul Boven <p.boven at xs4all.nl> wrote:
>> Hi Randal,
>>
>> On 2016-10-07 18:52:57, Cube Central wrote:
>>>
>>> Is there an alternative that someone could point me to that would cost
>>> only a couple hundred rather than (what I expect) is a couple thousand? How
>>> would I go about gathering the data needed for these nifty ADEV graphs I see
>>> floating about in here?
>>
>>
>> People have reported (also on this list) that some SDR (software defined
>> radio) hardware is quite capable of emulating a 5120/5125, and even going
>> beyond it in performance.
>>
>> "Oscillator metrology with software defined radio, Sherman, J.A., Jördens,
>> R." - arXiv:1605.03505 [physics.ins-det]
>> https://arxiv.org/abs/1605.03505
>>
>> Regards, Paul Boven.
>>
>>
>> _______________________________________________
>> 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.
>
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
> _______________________________________________
> 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.
More information about the time-nuts
mailing list