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Correst CI-V operating voltage
Hello gang, someone sent me a message asking a very good question, what IS the correct CI-V voltage;
The answer is fairly simple 5VDC PtoP.
The idle CI-V voltage should be 5VDC and drops to near Zero when a bit is sent!
But, I have seen different OEN devices driving CI-V all the way down to 3.3VDC and work fine.
I strongly suggest you drive any projects at 5VDC to play it safe.
Please keep in mind, if you measure using a DVM, the resulting reading is false, since depending on the data your average voltage will vary a lot!
This should be properly be measured using a Scope NOT a DVM.
Please share your projects with the group.
Hope this helps
Richard VE2DX, Jesus Island, PQ-014
Only the Best ICOM, ERC and HRD
Follow my projects on www.facebook.com/VE2DX/
Yes, I did initially drive my 7300 with CI-V messages at 3.3v logic and they appeared to be fine. I later changed that to 5.0 v.
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