[rabbit73]

Any antenna mounting/remounting is going to have to be done by outside help as I am not skilled in that area and promised my spouse I'd stay off the roof.

I need to see both to show the spouse. Right now, she is balking a bit at the idea of the eaves mount....

You have a very smart wife. She is looking out for your interests as well as her's. Treasure her.

For a happy marriage, it is important to consider the WAF, Wife Acceptance Factor.

The eave mount at the rear for the C2V would be more difficult to do, but it wouldn't be very noticeable from street. The 5 ft tripod with 10 ft mast on the garage roof for the C2V would be easier to do, but more noticeable from the street.

At this point, I'm fairly certain, but can't guarantee, that the C2V would do well on the eave mount at the rear. There are doubts about the tripod on the garage roof; it would depend on how well the C2V clears any obstructions. This is still an experiment.

The success of the Roamio installation depends upon a high quality signal from your antennas. It is now the tuner and recorder for 3 TVs. If you can't give it that, then you will have to change to another configuration where the Roamio is secondary, only for recording. You would use a 4-way splitter from the AC7 to feed 3 TVs and the Roamio.

I must confess, I have some reservations about your present configuration; it has no redundancy. If the Roamio fails, then nobody can watch TV, and nobody can record.

I'll try to do a "what it looks like" later. Would any of these images do the job?
tripod mount for tv antenna
https://www.google.com/search?q=trip...ed=0CAcQ_AUoAg

eave mount for tv antenna
https://www.google.com/search?q=trip...for+tv+antenna

I did that test tonight. The answer to that question is 21 or 22 dB. 20dB attenuation gives an SNR of 18 dB. 23dB attenuation gives an SNR of 15 dB.

Good job on the test. The results are even better than I expected.

I agree with ADTech.....leave it alone.

If you put the tripod on the garage roof, I don't need to tell you not to put it in front of the 91XG, do I?

The tripod should be fastened to the roof by a roofer to reduce the chances of a leak. Better a leak on the garage roof than on the roof above the 2nd floor.

This is not an endorsement for Denny's, but he has a page
How to Install A TV Antenna Tripod Mount
http://www.dennysantennaservice.com/1475651.html

If you put a non penetrating roof mount on the garage roof to avoid fasteners through the roof, it would need to have adjustable pitch; most are welded at 90 degrees vertical. Also, you would need to put some weights on it.
https://www.google.com/search?q=non+...A&ved=0CDYQsAQ

As ADTech said, your garage roof is not flat.

I have a lensatic compass. If I end up moving the C2V where is the best compass measurement to begin at?

Use your tvfool report. This is your original report:
http://www.tvfool.com/?option=com_wr...d24362e8886d03

It shows 46 to 55 degrees magnetic for the C2V signals; try 50 degrees to start. Or, use a landmark from your 90 degree vertical view satellite image with the green lines to sight on.

I also ran tvfool reports with your exact address for the eave mount at the rear and the tripod mount on the garage roof. They also said 46 to 55 degrees magnetic. I will not post them without your permission.