I recently solved my long HDMI run problem by installing a Gefen HDMI booster http://www.gefen.com/kvm/product.jsp?prod_id=2806 between my two HDMI runs in the attic. Now I'm wondering, if running an extension cord in the attic is not safe, how could plugging in one of these powered boosters be? If it is not or is a code violation, how would they be useful being that most installation uses for this would be due to long runs in an attic? I tried contacting Gefen last week with this question but have not received an answer.
usualsuspects
09-03-07, 10:46 AM
It may sound counterintuitive, but have you tried plugging the booster in right at the display? I recall hearing that this was the best place to put these boosters. I know it might sound strange, but there apparently are good technical reasons for doing it this way, and if it works, it solves your attic problem.
It may sound counterintuitive, but have you tried plugging the booster in right at the display? I recall hearing that this was the best place to put these boosters. I know it might sound strange, but there apparently are good technical reasons for doing it this way, and if it works, it solves your attic problem.
Yes. I used a 50' Monoprice 22Awg then the Gefen followed by a 3' Monoprice HDMI. This had lots of dropouts and usually did not sync.
Using a 25' then the Gefen followed by a 15' worked without glitches.
Now I'm forced to plug the Gefen into an outlet using an extension cord. This has me concerned so my only other option is to try a non powered repeater (purchased from RAM) and hope it will work. If it doesn't, I'm not sure about keeping the powered booster in the attic. It's interesting that Gefen will not answer this question. Based on it's application, I'd imagine many people have them placed in the attic.
Any other thoughts or opinions? If there is an extension cord (5-6') that must be used in the attic, is there a preferred type such as an appliance cord?
Dennis Erskine
09-10-07, 01:09 PM
It is not safe in the attic ... you'll exceed its operational temperatures. Active cables, such as those from Vizionware, would have been better.