RV-6004 Deteriorated DTV Signal

[steveb625]

Hi!
Well, the subject sort of describes the problem but I'd like to nail down a course of action.
I have a 2004 Jayco camper with an RV-6004 antenna and a powered wall outlet. When I set up the camper yesterday I hooked up TVs in the entertainment center and bedroom. Scanning for channels resulted in no less than 20 channels found on each TV. Everything worked fine for a couple of hours, then the signal started to deteriorate. Eventually neither TV could find a signal. I rotated the antenna a bit and barely got signal for 1 station. It was very tentative and it seemed that any movement in the camper would cause the signal to fluctuate.
Today I went up on the roof to see if there was an obvious problem. No debris or branches anywhere near it. I checked voltage at the COAX right at the head. 13.6VDC. I replaced the COAX between the head and roof. No change. Just to be sure it was not our location I installed a couple of rabbit ears antennas and got 9 channels on one TV and 5 on the other. Of course these are inside an aluminum sheathed camper so I am surprised they worked at all.
My questions are:
Is it likely that the amp in the antenna head would die like this at 6 years old?
Can just the head be replaced or dose the wall outlet need replacement, too?
Thanks for any insight.
Best regards
SteveB
Rhode Island

[Winegard-Mobiletech]

The first thing to check is the coax.

There should be 12VDC on the end of the coax cable connected to the antenna head. If this voltage is missing we need to find it. It could be a connection that has corroded.

[steveb625]

Thanks.
The COAX is good. There is 13.6 VDC at the head (plugged in with DC from the converter).
When I got home I tried out the antenna again and got a few channels but no difference from powering the head or leaving it off. We're in a better location for reception at the house.
Doesn't seem to be a repairable device. Looks like the RV-2005 replacement head is the way to go.
SteveB