Mutec MC-3+

[Octagon]

Sorry for the late response, Julian.

 

Feeding a signal via a 50 ohms cable into a 75 ohm termination will cause reflections at the cable end - this should normally be avoided.

 

[ATTACH=CONFIG]25508[/ATTACH]

source: https://en.wikipedia.org/wiki/Reflection_coefficient

 

Any reason why reflections are good in case of this application?

 

Thanks

Ulli

 

Hi Julian,

 

would like to remind that Uli's question is still unanswered. I am as well very interested to learn about the background of your recommendation.

 

Thank's in advance

Thomas

[Octagon]

Sorry about the delay but I wanted to check with our engineers on this first. Actually, we recommend leaving the internal termination set to 75 Ohms even when using a 50 Ohms external clock. There may be a slight shift in level, but no slurring of the slopes or any other interference. We've found that using a t-split with additional external terminator is more likely to cause problems due to the additional contact impedance. This also means that we advise you use a 50 ohms cable up until the input of the MC-3+ / MC-3+ USB

Feeding a signal via a 50 ohms cable into a 75 ohm termination will cause reflections at the cable end - this should normally be avoided.

 

Dear all,

 

I received pm from Mutec that they will come back to this topic but ask some patience, they are very busy at the moment because of High End Munich.

 

Take care

Thomas

[Octagon]

On 22. September 2016 at 8:55 AM, coogee.de said:

Yes, I will sell the 2nd Mutec and will use the money to buy the Mutec 10 MHz clock module when it is available.

 

Hi Cogee,

 

I have posted some technical details on Mutec's REF 10 you might find helpful:

 

Take care

Thomas