The One-shot
wire antenna slingshot
How to setup your One-shot slingshot
DX Launcher • All Ham Made
THE ONE-SHOT™ Wire Antenna Slingshot
A precision line-launcher for installing wire antennas in trees and high structures.
What’s Included
- x1 ONE-SHOT Handle
- x1 DX Reel System
- x1 Arm Sling
- x2 Rubber Sling Bags
- x3 1 oz Weights
- x1 Bag Ring
How to Use
- Attach Sling Bag. Choose a Rubber Sling Bag and attach to ring (Watch video below). Inspect for cracks or wear before each use.
- Seat the Rubber Bag with Ring. inside the face of the slingshot should be a snug fit
- Mount the Reel. Secure the DX Reel System to the top of the ONE-SHOT handle.
- Tie On a Weight. Attach one 1 oz weight to the line with a reliable knot. Check for frays and tangles.
- Load & Draw. Place the weight into the pouch. With a firm grip on the handle, pull the pouch straight back (use the Arm Sling for extra control).
- Aim Safely. Pick a clear trajectory over the target tree—verify no people, animals, vehicles, or power lines are in the line of fire.
- Release Smoothly. Let the pouch go in a controlled motion. Allow the line to glide over the canopy.
- Retrieve & Deploy. Reel the line back and use it to pull your antenna wire or a heavier messenger line into final position.
Note: Manual launcher — no PSI or pull-strength specs required.
Essential Safety
- Eye protection required. Ear protection recommended.
- Inspect before each use: sling bands, handle posts, reel mount, line, and knots.
- Clear your range: maintain a safety perimeter of at least 25 ft around the operator.
- Never aim at people, animals, vehicles, windows, or near/over power lines.
- Use only in open outdoor areas with clear overhead space and stable footing.
- Replace worn or damaged parts immediately; discontinue use if damage is found.
Troubleshooting
- Line tangled on release: Ensure the line is tightly spooled and free of knots before each launch.
- Reel Not locking into place: Make sure the rubber bag and ring are seated flush to the face of the One-Shot.
- Short launch distance: The rubber bag may need to be streached before use. You can do this by pulling back on the bag while its seated in the One-Shot. MAKE SURE to have the DX Reel attached or you can launch the rubber bag and ring out of the face.
- Weight veers off course: Inspect for uneven pouch tension or damaged weights. Launch in calm weather for best accuracy.
- Line snagged in trees: Gently pull back on the line; do not pull sharply. Then let go of the line so the weight hopefully frees itself and desends down the tree.
Legal & Liability Disclaimer
The ONE-SHOT Wire Antenna Slingshot is designed solely for amateur-radio antenna installation. You are responsible for compliance with all local, state, and federal laws that may govern slingshots or line-launching devices in your jurisdiction. Do not modify the device or operate it beyond its intended purpose. DX Launcher / HamRadio24/7 assume no responsibility for injury, damage, or unlawful use. By operating this product, you agree to use it safely, responsibly, and in accordance with applicable laws.
© DX Launcher • HamRadio24/7 — All Ham Made
Rubber bag INSTALLATION
Flip the rubber bag inside out.
Find the top side of the ring is indicated by one side is flat we will be using that side.
Push the ring in the bag and orientate the ring that the flat side is facing out.
Grab the bag tight from the bottom
Push the the rubber bag hole to one side of the ring still holding the bag tight with the other hand
You should have one side slotted in the groove of the ring
Push the edge of the bag around the ring to secure the bag fully to the ring.
Important! Once the bag it secured to the ring you must make sure to flip the bag inside itself.
This will help with the longevity of the bag over time.
The one-shot in action
Check out The One-Shot in action! KC2UPN demonstrates its power by launching a line smoothly over an 80-foot span — fast, accurate, and effortless.