Sam Morgan Moore Posted June 20, 2015 Report Share Posted June 20, 2015 (edited) Hi. Im trying to feed SDI down my Pilot post into a Decimator I have rigged at the bottom.. GH4-YAG-SDI-Post-Decimator-Monitor. This setup was working! It stopped working and I had to changed the 'tail' out of the bottom of the pilot post and assumed I had made a dodgy connection - but that does not seem to be the cause. Simply if I connect a 9V duracell to the top of the post monitor in and a volt meter to the post monitor out connector I get 9v. The thing passes volts, but not signal! So is there a situation (bad earth etc) where I could.. -Pass volts down the post monitor wire but NOT pass an SDI signal down it? Thanks S Edited June 20, 2015 by Sam Morgan Moore Quote Link to comment Share on other sites More sharing options...
Premium Members John Brankin Posted June 20, 2015 Premium Members Report Share Posted June 20, 2015 The sled is most likely wired with a 50 ohm cable. It needs to be 75 ohm to carry the HDSDI signal properly. Quote Link to comment Share on other sites More sharing options...
Sam Morgan Moore Posted June 20, 2015 Author Report Share Posted June 20, 2015 Thank you - that makes sense...(Or doubtless wouldif I understood electricity) but it did work for a bit! The cable is tiny - would fatter cable work? My feeling is that Im just going to try and stuff a functioning SDI lead down the post - no soldering for me if at all possible. Due to the mass of my rig (fully loaded) I don't have many configurations that actually fly anyway - so a 'tail' out of the bottom of the rig should give me enough configuration options. S Quote Link to comment Share on other sites More sharing options...
Premium Members Jess Haas SOC Posted June 20, 2015 Premium Members Report Share Posted June 20, 2015 Non HD-SDI rated cable will often work for short runs but since it is a marginal signal to begin with as the cable and connections degrade it gets flaky or stops working all together. Your best bet for a thin cable is probably Beldin 179DT. Where are you located?I have the crimp tool. If your in LA and want to swing by I could help you out for a reasonable price. Quote Link to comment Share on other sites More sharing options...
Sam Morgan Moore Posted June 20, 2015 Author Report Share Posted June 20, 2015 HI Im in the UK - have managed to stuff a normal SDI lead down, (actually much neater at the top!) - just need to get the bottom connector in place and hopefully Im in business. Thank you Sam MM Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.