SlideWinder DX Coil Red
High-quality HF Antenna Coil, Developed by M1ECC-Antennas
Easy to use, easy to install, easy to maintain.
Designed for use with all 3/8 24 tpi, Antenna fittings & Mounts.
Screws easily on to all Antennas & mountings by hand no spanners required.
Mobile / portable installation is the main application for our SlideWinder DX Coil.
They can be used for flat dwellers, Homebased use, Dealing with confined space or stealth Antenna installations.
Or anytime you need to use a resonant antenna without the need of a tuner.
The SlideWinder DX Coil former has 5 air gapped vertical grooves to improve the movement over the coil windings, When tuning using the Stainless Steel tuning Slider.
For proper spacing of the coil windings the coil former is grooved to keep the windings in place, High quality heavy duty 316 marine grade stainless steel wire is used.
So rust and corrosion will never affect your coil, It will look good years from now.
Coils are easily maintained by simply wiping the coil with a dry lint free cloth.
Stainless steel has the properties of being able to form a protective layer once scratched.
Sliding the tuning slider up and down on other metals would slowly erode their protective coating.
This would lead to corrosion of the coil causing arcing & coil failure.
Operate mobile, portable or fixed-station.
The SlideWinder DX Coil operates from 40 to 10m metres with our bespoke 7 section Mil whip antenna or a 102", 108" whip.
Please Note,
Care should be taken to avoid excessive wind loading on the coil, When using larger Antennas than a 102" or 108" whip on the coil.
In wind speeds greater than 20mph, "Use extreme caution" As most larger & telescopic whip antennas are not recommended for use on the coil in high winds or strong gusty conditions.
We would suggest that you only use a larger antenna on the coil in calm weather conditions.
Be aware Slidewinder DX Coils were never designed to take antennas over 3m in length.
When used portable in the field or fixed-station the use of ground radials or tuned length elevated counterpoise wires is recommended.
For mobile operation smaller whips can be used, But your results may vary depending on your installation.
The car body depending on how well it is grounded may have an effect on antenna performance.
An easy-to-install coil only requires an antenna whip that can be purchased at any radio outlet that sells 102", 108" whips.
SlideWinder DX Coils may be used at power levels up to 100 Watts SSB, 100 Watts CW and 25 Watts with digital modes.
Tuning, Slide tuning slider up and down coil until maximum noise or signal is received.
Fine tune for lowest VSWR Using an VSWR Meter or an Antenna Analyzer.
Features / Specifications
Standard 3/8 24 antenna mount.
Overall length 240mm.
Coil diameter 40mm.
Coil wire 316 Marine grade Stainless Steel.
Tuning Slider 304 grade Stainless Steel.
Tunes HF bands from 40 to 10m metres with a 102", 108" whip
or our own 7 section Military Shock cord whip.
Power rating 100 Watts SSB, 100 Watts CW and 25 Watts with digital modes.
Weight 350g
* Disclaimer *
It should be noted that the Slidewinder DX coil should only be used in accordance to our specifications and within our stipulated intended use. All details of intended use are detailed above in the description.
Slidewinder DX Coils are not designed to be used high off the ground on an antenna mast,
We appreciate that our Slidewinder DX coil could be subject to customers own research and configuration testing. This is not in compliance with our stipulated intended use. We therefore accept no liabilities for such uses outside of our intended use and stipulations. Therefore, we accept no liabilities or refunds which results in malfunction and breakdown of any parts of the SlideWinder DX Coil when used outside of it's intended use.
Made in the UK by M1ECC-Antennas.
Although there are other tunable coils out there I found this one to be the easiest to deploy and tune. Mount it to a tripod or ground spike, put the whip of your choice on top with counterpoise or radials out and your set. Less then 5 mins and your operating.
Posted by John Taggart on 16 October 2024I've successfully used this coil with a standard 9ft whip antenna mag mounted on the roof of the car. Easy to adjust tuning, I used it on 40m and 20m and got into Finland on 25w from the Kent coast. Good value and well made. I like it.
Posted by David Martin on 05 August 2024thank you for the quick delivery - it just took nearly two weeks to pass through DL customs.... got the SLIDE WINDER COIL the last day before leaving for a business trip to VU, now it will make a VU ham happy ;-)
Posted by Hartwig Kauschat on 17 April 2024I use this at the beach with a 2.75m Tank Whip, 1m earth rod and wing mount, 1:1 unun, a 13kg baseplate and 6 radials. Quick to set up and the results have been very good indeed from 40 to 15m (coil not needed above 15). Used with a Xiegu G90 which has a 20w max output. Much easier to adjust the coil than I expected and once you've got the settings for each band I just marked them on a ruler which I now hold up beside the coil and it's tuned in seconds. Has a nice forgiving wide bandwidth as well. Saves carrying multiple hamsticks as well. Well made and looks like it will last. A good product. 2M0SNT.
Posted by Anthony Dooner on 14 February 2024