Sun Valley Machined
Raise and lower your antenna alone, in minutes.
The Tilt-Up Base is the hinge your Greyline has been waiting for: walk the antenna down for a whip swap, a season check, or a storm night — and walk it back up — one operator, no ladder, no helper, no lift truck.
Field Report — Hurricane Country
"Living in Florida, prepping for high winds and hurricanes isn't uncommon. Now that I have the tilt-up base installed for my DXF-24 flagpole, that preparation just got so much easier. Remove one bolt, loosen the other, and the antenna comes down easily and goes back up just as easy. It's now a one person job. Besides storm prep, it makes any preventative maintenance less of a chore. Like the Greyline antenna hardware, the tilt-up base is beautiful. Added bonus; the flagpole just got a little taller!"
— Thomas, N3EQF · Florida · 24 ft DX Flagpole · Verified Owner
Why a tilt base? A 24-foot antenna weighs under 30 pounds, but physics does not care — it is the fulcrum, not the weight. Standing one up by hand is a two-person job at best and an awkward one at worst. This is the mechanism that removes the problem, engineered in our Idaho shop specifically for the Greyline base tube.
The Design, Plainly
- Two precision sleeves interface with the standard Greyline 2" OD x .125" wall base tube — the tube itself stabilizes the pivot plates
- 1/4" side plates, 3/8" Grade 5 pivot hardware
- All-bolted assembly — no welds, fully serviceable with basic tools
- Adds 17" of height to your installation — a small aperture bonus, on the house
- Cut, drilled, tapped, and turned in our Sun Valley, Idaho shop
The 45-degree stop.
The pivot is cut so the antenna swings down in one direction only and stops dead in the upright position. It cannot tilt over the top and fall the other way. Simple, mechanical, foolproof.
Same Hole. Same Sleeve. No New Digging.
Already have a Greyline standing? The Tilt-Up Base seats in the same ground sleeve your antenna is in today — it fits the standard Greyline Ground Sleeve Kit. The hole you dug once is the only hole you will ever need. No second hole, no new concrete.
Every Greyline Ever Built Can Take One
We designed it that way on purpose. This base fits the standard 2" OD tube used across the current 12 to 28 ft line and every Skyline.
Own one of the original 28-footers? Those used a 2.25" pole, and we build a matching base in that size in small batches. Call 435-200-4902 or email us to get on the current run. Nobody gets left out.
Not just for storms. The same base that lowers an antenna ahead of weather is what lets you service a feedpoint, add the 9 ft DX Whip, or check a connector on an ordinary Saturday. Operators who own a tilt base tend to end up with more aperture too, for exactly that reason: the easiest time to add height is when the pole is already horizontal.
Built in-house in small batches, in Sun Valley, Idaho.
Questions on your install, or unsure which size fits your pole? Call 435-200-4902 with your model and year — an operator answers, and we will tell you in thirty seconds.
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