Quote:
Originally Posted by rabbit73
That is a little tricky to do with the end of the coax coming up from the power inserter that connects to the preamp. You have to connect one voltmeter probe to the coax shield and touch the other probe to the center conductor without shorting it to the shield. I sometimes insert the cable connector into an F81 adapter and insert a short length of 18 gauge bare copper wire into the other end of the F81. The 18 gauge wire is the same size as the center conductor of the RG6 coax. The attachments show me checking the voltage at the lower end of the coax when the preamp (old model 7777) is powered.
Do you have the new model 7777 with only one antenna input?
Troubleshooting the new 7777:
http://support.channelmaster.com/hc/...ing-correctly-
http://downloads.channelmaster.com/S...77_7778_UG.pdf
http://forum.tvfool.com/attachment.p...7&d=1436753605
What makes you think it is bad?
Please explain what you mean by that.
Can you receive anything on either antenna without the 7777? |
Should the switch for UHF be on or off on my combiner it says; Switchable DC passthrough is provided from output to UHF input, allowing a remotely powered signal amplifier to be used with the UHF antenna?
What I meant on the coaxial cables crossing over is going into the house the same cable crosses it self in places.
Going to take down antenna today and check connections and test.