I assume you're talking about splitting the 10 MHz signal from a
reference source. I used to use a video amp but it developed problems
after about 30 years of use. I started looking at other video amps
and along the way I started to use a passive TV type 6-way splitter,
the type in a solid metal case with F-Connectors. This has actually
worked quite well and my various counters as well as my HP-3586B and
HP-3336A are happy with the levels. At the moment I don't recall the
output level of my DATUM 9390-52054 receivers, but it's quite healthy
and when I was using a Video DA I had to put a 10 dB pad on the input
to keep from frying the innards. A passive splitter may not be the
best way to distribute my "House Reference", but it works well, and
really, that's all I want.
I use a 6 spigot version of
this: http://www.solidsignal.com/pview.asp?p=SKY23308&ss=412546
Burt, K6OQK
At 03:30 PM 1/5/2015, [email protected] wrote
Happy New Years All! I have seen a number of discussions on various
approaches to distribution amps discussed on Time-Nuts ranging from
DYI to products intended for Video.
I thought I my weigh in with one point of interest; It seems like
long term performance is pretty easy, but a low phase noise solution
is quite a different story. Looking at the number of application
specific products from MicroSemi/Symmetricom and other manufactures
claimed and even more so real world specs vary a great deal so
apparently it s not easy to just throw something together with great
or even good close in phase noise. So depending on your labs
direction in the future it may be worth researching and investing in
an application specific distribution amp. I like the MicroSemi 4036B
but there are a number of very good products out there on the
surplus market selling for a small fraction of their original cost.
Cheers;
Thomas Knox
> From: [email protected]
> To: [email protected]
> Date: Sun, 4 Jan 2015 08:29:34 -0500
> Subject: Re: [time-nuts] Any reason not to use one power
amplifier and splitter for distribution amplifier?
>
> A cheap and dirty equivalent of a pass thru terminator that I use
is a BNC t
> connector with a 52 ohm bnc terminator. I guess you could use a
CATV 75 ohm
> F type with an adapter. Maybe that combination would produce too much
> garbage.
>
> 73,
>
> Bill, WA2DVU
> Cape May
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
[email protected]
www.biwa.cc
K6OQK
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