user14221: I was wondering if there’s a converter out there that would take a HD-SDI in, as well as a LTC in, and an SDI out. 
We currently have video feeds with no timecode embedded and was trying to loop through a feed of timecode which we can feed from a BNC.
I’m also seeing if it’s possible to make too! I know it is a thing that can happen considering Atomos Shoguns can feed in and LTC. I just need that without the screen.
If i fed to BNCs (a T Bar) into one out would that work? Is video and timecode able to be merged or would it be read as two feed signals?

user22212: It is quite possible to make, but think FPGA with 3 Gig SERDES (so probably a modest Kintex 7 or something similar) with a couple of SDI line IO parts (TI) and maybe a PLL from SI Labs, add some power conversion and a mess of VHDL, job done. 
Maybe a few months work.  
Obviously if you have LTC you can stripe that onto an audio track just using any old audio embedder, but I am guessing that does not really do it for you? 
I would be a little surprised if YellowBrix or maybe Decimator Designs do not have a box that does this. 
Regards, Dan.

14221: <p>I was wondering if there’s a converter out there that would take a HD-SDI in, as well as a LTC in, and an SDI out. </p>

<p>We currently have video feeds with no timecode embedded and was trying to loop through a feed of timecode which we can feed from a BNC.</p>

<p>I’m also seeing if it’s possible to make too! I know it is a thing that can happen considering Atomos Shoguns can feed in and LTC. I just need that without the screen.</p>

<p>If i fed to BNCs (a T Bar) into one out would that work? Is video and timecode able to be merged or would it be read as two feed signals?</p>
 22212: <p>It is quite possible to make, but think FPGA with 3 Gig SERDES (so probably a modest Kintex 7 or something similar) with a couple of SDI line IO parts (TI) and maybe a PLL from SI Labs, add some power conversion and a mess of VHDL, job done. </p>

<p>Maybe a few months work.  </p>

<p>Obviously if you have LTC you can stripe that onto an audio track just using any old audio embedder, but I am guessing that does not really do it for you? </p>

<p>I would be a little surprised if YellowBrix or maybe Decimator Designs do not have a box that does this. </p>

<p>Regards, Dan.</p>
