Well, FYI, I had already done that several times. Looked at them so hard that I got blurry eyed. Guess what? There simply isn't any dimentions shown on any single piece of literature they have on the website.
I downloaded each one to my computer, and looked at them all again with the images blown up bigger. Nope, still not there.
If, you have located a page with "Tech Docs" as you state, then please enlighten me as to how to get to it. I don't think I'm getting senile, but I am subject to senior moments. LOL
I really want to know the dimensions of the 151VR-LT, as I have only so much room to spare in the device in which I intend to build my unit. Will most likely go with the 351VR-LT model, but if the 151VR-LT performs equally as well, and costs less, it may be worth considering. They have discontinued making the 151 unit though, however plenty of them are still available at various dealers.
BTW, while I was looking at the NADY website, I noticed a link on the left hand side of the page that I didn't see before. There is a link called "Open Channel Locator Guide", which might also be very helpful to those seeking reasonably clear frequencies in their respective areas.
Thanks for the consideration,
Bill