I have a a headphone plug with two male 1/8" plugs that I am plugging into the headphone jacks of a 536HP and another scanner, either a PRO-197, WS-1080, or 996XT. The audio from both plugs goes to one pair of headphones using the other end ot the cable with a single female 1/8" jack. However, I did this only for a while then stopped. The reason: Started to get popping sound in 536HP, the scanner actually shut off and restarted, the P25 audio was distorted, and I went "Oh s..."
When pulled the dual set up headphone jack, no problem with the 536HP. Seems like I am getting some type of DC voltage loop in the 536HP when I have the ground connection of the plug physically connected to another scanner at the same time. This happened one time about 3 months ago, but forgot, and plugged the dual headphone cable into tonight with same problem.
Obviously, I won't do that again. But does anyone know what might be going on to cause this behavior. The problem is that I would like to use one pair of headphones to monitor more than one scanner at a time when my wife is sleeping. Is there some way to do this properly where I would not get this type of behavior?
Would an audio mixer be good in this type of situation?
Any advice would be appreciated.
Steve AA6IO
When pulled the dual set up headphone jack, no problem with the 536HP. Seems like I am getting some type of DC voltage loop in the 536HP when I have the ground connection of the plug physically connected to another scanner at the same time. This happened one time about 3 months ago, but forgot, and plugged the dual headphone cable into tonight with same problem.
Obviously, I won't do that again. But does anyone know what might be going on to cause this behavior. The problem is that I would like to use one pair of headphones to monitor more than one scanner at a time when my wife is sleeping. Is there some way to do this properly where I would not get this type of behavior?
Would an audio mixer be good in this type of situation?
Any advice would be appreciated.
Steve AA6IO
Same headphone, two scanners - problem
