[time-nuts] 10MHz dist amps

[Bruce Griffiths]

Its measured noise floor is consistent with that expected from the noise specifications for the opamps employed.

Bruce

> On 24 October 2019 at 08:46 Tom Knox <actast at hotmail.com> wrote:
> 
> 
> Hi John;
> Amazing product, I did not realize you could use the TADD-1 for 100MHz distribution.
> I do have a question, as someone who has tested most of the commercially available distribution amps on the market TADD-1's -140dB @ 1Hz is among the very very best best in the industry, (nothing is close for the price) but compared to the very best the noise floor is a bit higher. Is this simply a result of a raw board instead of a shielded enclosure?
> Thanks;
> 
> Tom Knox
> 
> 303-554-0307
> 
> actast at hotmail.com
> 
> "Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein
> 
> ________________________________
> From: time-nuts <time-nuts-bounces at lists.febo.com> on behalf of John Ackermann. N8UR <jra at febo.com>
> Sent: Wednesday, October 23, 2019 11:54 AM
> To: ew via time-nuts <time-nuts at lists.febo.com>
> Subject: Re: [time-nuts] 10MHz dist amps
> 
> FWIW, I designed the TADD-1 to have equal length signal paths for all six channels.
> 
> 73,
> John
> 
> On Oct 23, 2019, 1:01 PM, at 1:01 PM, "Bill Dailey, MD, MSEng, MSMI" <docdailey at gmail.com> wrote:
> >I am working in a project that requires me to have very similarly
> >phased
> >10mhz references (beamforming).
> >
> >Previously I just used splitters for 10MHz but now I am graduating to a
> >distribution amplifier.  Looking for suggestions/recommendations and
> >what I
> >should consider.  Distributing a Fury or a manually set 1111a (May have
> >the
> >numbers wrong on this) oscillator.
> >
> >1. TADD-1 x 2
> >2. 5087A
> >3. 58502A
> >
> >2&3 are from the usual auction site and may have problems now or in the
> >future.
> >--
> >Doc
> >
> >Bill Dailey
> >KXØO
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