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high performance Portable HF Antenna coil


Rugged Construction

CNC machined from premium materials. A Delrin body, black anodized 6061 aluminum and all stainless steel hardware to take on any environment, any time.

weather resistant

The Recon 40 features a completely sealed body* for use in harsh weather. The use of o-rings and a custom SO-239 gasket ensures a reliable seal between components.

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* For a completely weather resistant deployment, the user must waterproof the coax connection at the SO-239 connector.

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Work 40-10m

Designed for use on the ham radio bands, the Recon 40 is capable of tuning 40-10 meters with the [Z]-17 telescoping whip.

built for speed

The integrated coil bypass switch allows you to change bands with the flick of a switch. No need to build a jumper or remove the coil, just flip the switch to direct-feed the whip!

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Now available at


The Antenna with a Secret: Rez Antenna Systems Recon 40 Coil

The Antenna with a Secret: Rez Antenna Systems Recon 40 Coil

You may think the Rez Antenna Systems Recon 40 is like any other base loaded coil, but what makes this one different is that you can change bands with a flick of a switch Rez Antenna Systems Recon 40 coil: ************ Links may be affiliate links. As an Amazon Associate, I earn from qualifying purchases. This does not affect the price you pay. ************* Like what you see? You can leave me a tip: KB9VBR VHF/UHF Antennas: Become a patron! Unlock exclusive content at: Support Ham Radio Q&A by shopping at Amazon: My Parks on the Air setup: Transceiver: Battery: Tuner: Folding Table: Throw Weight: Video Production Equipment: Camera Lens Wireless Microphone: Microphone: GoPro: Music by license: Contact Information: Questions, comments, or business inquiries may be directed to If you wish for your product to be featured on my channel, please contact me. #Hamradio #AmateurRadio #POTA #ParksOnTheAir #PortableHamRadio #rezantenna #recon40 #verticalantenna #wolfrivercoil

4.5 hour real-world SSB performance

MODE: SSB   POWER: 50w |  BAND: 20 & 40m

During KB9VBRs 3 POTA activations, his 50 watt signal was heard over 300 times across Canada, France, Italy, and the United States. The total on air time was approximately 4.5 hours.

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system Specs


recon  coil

Power Handling: 500 watts SSB, 200 watts digital (50% duty cycle)

Whip Mount Thread Pitch: 3/8-24

Base Mounting Stud Thread Pitch: 3/8-24


The Recon 40 is offered in several different convenient package configurations through our dealers. You may also purchase the Recon 40 coil and accessories individually to suit your needs.

Required accessories: a mounting solution,
a 17' telescoping whip, and at minimum, a set of 4 radials.


ground spike

Stainless Steel Construction

For Use in Soft to Medium Soils
 (not recommended for hard or rocky soil)

[Z]-17 Telescoping whip

10 Sections
Extended Length: 17’

Black Stainless Steel Construction


Collapsed Length: 23 1/4"

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[Z]pod tripod

3/8-24 mounting thread
18" Legs
Weight loop included


Footprint: Approx. 30"

[Z]qd radial expansion kit

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recon 40 swr charts

These charts represent the following antenna configuration:

[Z]Pod tripod, Insulating mount, [Z]-17 17' whip, (4) 33’ radials, (4) 16.5' radials, 50 feet RG8X coax.

Note: The resonant point of this antenna is adjustable. These sweeps were ran with the antenna tuned to roughly the middle of each band for illustrative purposes.

10 meters

12 meters

Minimum SWR: 1.29 at 28.993 MHz

15 meters

Minimum SWR: 1.40 at 24.939 MHz

17 meters

Minimum SWR: 1.26 at 21.228 MHz

Minimum SWR: 1.12 at 18.119 MHz

20 meters

Minimum SWR: 1.26 at 14.189 MHz

40 meters

Minimum SWR: 1.02 at 7.154 MHz

Camping in Mountains