I've tried daisy chaining 4 HP5335A. By the time signal got to the 4th box, it
was too weak to reliably drive the 1 pps. I had a terminator at the last tee
with short length of RG58s between boxes. I guess some box puts relatively
heavy load on the signal?
I'd like to know why 10V is a bad idea. (besides too close to the upper limit)
Cross talk between what/where?
To OP:I have video amplifiers Extron MDA-3V successfully used for this. 1 port
in, 3 ports out ones by Extron are very inexpensive at 10 dollars+/-. I never
did formal testing but reading on all counters matched exactly. They are 75
ohms but it didn't matter in my use case. You can change/adjust internal
resisters if you are concerned.
---------------------------------------
(Mr.) Taka Kamiya
KB4EMF / ex JF2DKG
On Tuesday, January 21, 2020, 7:45:22 AM EST, Bob kb8tq <[email protected]>
wrote:
Hi
What are you driving?
Most “normal” gear is pretty happy with a fairly wide range of input levels.
Obviously things
like termination and long lengths of coax can get into the act. For 4 outputs,
a passive splitter
with 6 db of loss should do just fine. You have only taken the output voltage
down by 2:1 ….
Just for reference:
https://www.avionteq.com/Document/53131A-specification-sheet.pdf
<https://www.avionteq.com/Document/53131A-specification-sheet.pdf>
Calls out a 200 mv to 10V RMS input level as acceptable For a variety of
reasons, 10V RMS
is a really bad idea (cross talk ….). Lower is better in this case.
Bob
> On Jan 21, 2020, at 4:19 AM, skipp isaham via time-nuts
> <[email protected]> wrote:
>
> Hello once again to the Group,
>
> May I ask what the current relatively simple options are for
> expanding a Thunderbolt or equivalent... output for distribution
> to multiple devices?
>
> Although I expect only two or three isolated / buffered outputs
> will be required in my example. I'm worried about signal level
> if a passive system (Mini Circuits divider or equivalent type)
> is used.
>
> Would appreciate a few quick opinions on what is practical and
> seems to work well.
>
> thank you in advance
>
> regards,
>
> skipp
>
> skipp025 at yahoo dot com
>
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