I have a bunch of NOS Mini-Circuits ZSC-2-1-75 splitters available if they
can be of any use. They are spec'd from 0.25-300 MHz and, if you change the
internal chip resistor to 100 Ohms (about a 5 minute task), it measures
very nicely at 50 Ohms. I will ship 2 of them for $32 and can throw in the
One can reduce the gulp factor mentioned by Scott quite a bit by buying
one of the non-connectorized versions from Mini-Circuits and wiring up
one's own BNC connectors.
One thing to keep in mind with these isolating splitters is that the
isolation
between outputs is good only if the impedance of
Coax T connectors should be avoided when using square wave signals
Regards P
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of Don
Meadows
Sent: 21 June 2019 15:28
To: time-nuts@lists.febo.com
Subject: [time-nuts] GPSDO 10MHZ Splitter
: Saturday, June 22, 2019 02:28
To: time-nuts@lists.febo.com
Subject: [time-nuts] GPSDO 10MHZ Splitter
Is there an easy, and cheap way to add a splitter the 10Mhz signal from GPSDO,
without going to a distribution amplifier to feed two different devices?
I really don’t want to build a complicated
Easy, Cheap, Good choose 2.
I looked at virtually every option I love to build. I settled on
HP 8-way and 4-way unity gain splitters WITH external power supply
ports. I actually retrofitted one with the very hard to find connector.
Easier to find it now... Well worth the cost to
If you don't need them to be in phase, you could just daisy chain them.
What I do is use a couple of BNC tee connectors, two pieces of coax, and a
50 ohm terminator on the last tee. First coax from GPSDO to first tee,
second coax between tees. Simple and works fine for my purposes.
If phase is
Hi
Cheapest and easiest is to use a power splitter. Ones from Mini Circuits that
are
rated to work at 10 MHz can be had for $20 or less. At some point you run out
of power ….
Building a splitter from NC7SZ125’s is not a all that crazy as a DIY project.
You
can get a dozen or so outputs and
There is a Trimbo GPSDO on ebay. We have a couple. 252162780444 look to me
a later version of the Tbolt, has an additional board with Power and
amplifiers. One 10 MHz is TTL and the other sine wave. Use the TTL for the
counter.There is an other one on Auction, looks identical has two
Don,
I use a video distribution amplifier. Bought one off eBay for around $12 or so
about 2 years agio, model is Sigma VDA 100A, i am sure there are many suitable
models on eBay.
cheers,
bammi
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time-nuts mailing list -- time-nuts@lists.febo.com
A couple of ideas:
Make one:
Several hours and a few $ (cheap if you value your time as free)
agree, not a lot of isolation between the outputs
Case, connector, and three 16.67 ohm resistors
in —> 16.67 ohms —> 16.67 ohms to output 1
Sure, presuming the output is 50Ω, build a 50Ω power divider. The signal
will be 3dB down on each of the outgoing legs vs the input. Plenty of
designs if you google it.
If the output is TTL, feed a 74xx04 on pin 1, send pin 2 to 3 and 5, pick
up the output from 4 and 6. Or choose some other gate
On 6/21/19 7:27 AM, Don Meadows wrote:
Is there an easy, and cheap way to add a splitter the 10Mhz signal
from GPSDO, without going to a distribution amplifier to
feed two different devices?
Just a power divider, or a BNC T, - it's not perfect, but it works.
there's isolation and potential
Is there an easy, and cheap way to add a splitter the 10Mhz signal
from GPSDO, without going to a distribution amplifier to
feed two different devices?
I really don’t want to build a complicated project, or
spend $200.00 dollars for an 8 output distribution amp
off the net. One output would be
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