Built in Grand Junction, Colorado — First Production Run
All the tilt, no digging.
The Deck & Concrete Mount Tilt Base takes our Tilt-Up Base and bolts it flat to the surface you already have: a concrete footing, a deck, a patio, a rooftop pad. Same one-operator raise-and-lower. Same locked upright stop. No ground sleeve required.
Who this is for: the operator whose best antenna spot is not diggable — rooftop installs, existing slabs, engineered decks, rocky ground, and rentals where a poured sleeve is not an option. The Greyline vertical dipole already works on any surface a flag-rated pole can stand on; this base is how it stands there.
A Price We Lowered, and Ten at the Old One
The first run cost more to build than it should have. We found the savings and passed them on: $469, down from $550.
And the first ten we ever sold went out at $399, so the next ten do too. Code FIRSTTEN at checkout, one per customer, gone when they're gone.
The Design, Plainly
- Welded steel anchor plate with four-bolt hold-down pattern — bolts to concrete or structural deck framing
- Gusseted upright carries the same tilt assembly as our Tilt-Up Base Kit
- 1/4" side plates, 3/8" Grade 8 pivot hardware on the tilt assembly
- Interfaces with the standard Greyline 2" OD x .125" wall base tube
- Adds 17" of height to your installation
- Plasma-cut 5/16" steel plate, welded, powder coated, and assembled by hand in the Mountain West
The 45-degree stop.
The antenna swings down one way only and stops dead upright — it cannot tilt over the top. Simple, mechanical, foolproof.
The Same Tilt, In Motion
The Deck Mount carries the same tilt assembly as the ground base. Here it is on a 24-footer, down and back up in two minutes. Video: Bart, N1BRL.
The Installation Drawing
On a wood deck: through the framing, never the boards alone. A matching joist goes in beside the mount, the rods pass down through it, and a 2x8 ties four joists together underneath.
Four sheets from our engineer: the concrete foundation and what an existing slab has to be; the wood-deck method above; assembly, with the one bolt that comes out to lower the pole; and a 1:1 anchor-rod template you can print and lay on the surface. Read it before you order and you will know exactly what your surface needs.
Fits — Greyline Or Not
Every Greyline DXF, DXV, and Skyline built on the standard 2" OD base tube. And because the fitting is plain 2-inch aluminum, it also takes any other maker's vertical, flagpole antenna, or push-up mast with a straight 2.00-inch OD base section. Measure around the base and divide by 3.14; 2.375 is pipe, not tube, and needs an adapter.
Larger pole? Original 2.25-inch Greylines use the XL Tilt-Up Base, and 3-inch HD poles use the 3-inch HD Tilt-Up Base. Not sure which you have? Call 435-200-4902. Will it fit my antenna? →
Mounting Dimensions — Will It Fit Your Existing Bolts?
- Base plate: 8" x 8", 5/16" steel
- Bolt pattern: 5.5" x 5.5" square, center-to-center
- Anchor holes: four, 3/4" clearance — sized for 5/8" anchor rods
- Height added: 17"
Matching existing bolts? Measure center-to-center both directions. 5.5" x 5.5" on 5/8" rods is a drop-on fit. Different pattern? Call us — custom plates are a conversation, not a problem: 435-200-4902
Anchor hardware note.
Concrete anchors and deck fasteners are surface-specific and not included; the drawing names the rod and epoxy options for concrete and the through-rod method for wood. Questions about your surface: 435-200-4902
On the shelf now. Built in small batches, by hand in the Mountain West. Ships free in its own box.
Ham Radio is fun again! Pass it on… 73, Jon KL2A