Skip to content
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1
CHA URT1

Chameleon Antenna

CHA URT1

Sale price $399.00

3' JUMPER COAX RG-58C/U (SO-239 to SO-239)
12W POWER SUPPLY

38 in stock

URT1 · Universal Remote Tuner

Put the matching network at the antenna feed point—where it can reduce loss in the coax between the tuner and the antenna.

Why operators choose it

A remote tuner built for real antenna systems

The CHA URT1 separates the indoor coupler from the outdoor tuner and carries RF, DC power, and control over the same coaxial run. That places the tuner close to the feed point, keeps the operator-side installation simple, and gives portable, HOA, EMCOMM, and fixed-station operators a practical way to work with several documented antenna configurations.

It is not a universal promise that every wire will tune on every band. Radiator length, counterpoise, feed-line length, installation geometry, and the impedance presented to the tuner still matter. Start with one of the documented URT1 antenna paths and verify the completed system at low power.

Quick product reference

Key specifications

Frequency range
1.8–54.0 MHz
Matching range
5–1500 Ω
HF SSB/CW
125 W maximum
6 m SSB/CW
100 W maximum
Digital/high duty
30 W maximum
Tuning power
0.5–15 W; 10 W recommended
Tuning time
About 5 seconds full tune; about 0.1 second memory tune
Memory
16,000 frequency memories
Power supply
12–14 V DC, 1 A
Operating temperature
14°F to 140°F (-10°C to 60°C)

System limit: The lowest applicable rating of the tuner, BALUN, feedline, connectors, and completed system controls.

Before you deploy

Plan the complete setup

The URT1 is one part of the antenna system. Choose the radiator, return path, feed line, mounting, and operating limits together.

Best for
Remote matching near the feed point for documented portable, HOA, emergency, and fixed-station antenna paths.
What’s included
  • Outdoor tuner unit
  • Indoor coupler unit
  • Mounting tabs, brackets, U-bolts, and hardware
  • Power switch and hardwire power cord
What else you need
  • 12–14 V DC, 1 A supply if you select the version without one
  • A documented radiator and return-path configuration
  • Coaxial feed line and weather-safe installation hardware
Critical connection rule
Use either the coaxial Antenna connector or the Beehive connector—never both at the same time. Do not place another device between the Coupler Unit and Tuner Unit unless the current guide explicitly authorizes it.

Choose a documented antenna path

The URT1 can be used with several vertical, wire, and balanced-feed arrangements, but each path has different radiator, counterpoise, feed-line, mounting, and tuning requirements. The handbook compares those paths in plain language before you buy or deploy.

Compare the documented URT1 antenna paths →

Need the application drawings?

The applications guide provides field layouts for the principal URT1 configurations. Confirm the current User Guide before changing connections or operating limits.

Open the URT1 Applications Guide →

Triple Guarantee

1. Easy returns

If you are not completely satisfied with your purchase, you may return it within 30 days, subject to a 20% restocking fee. Please note that international orders and items marked as Final Sale are not eligible for returns.

2. Safe with us

Our website is 100% verified and all transaction and customer info is securely encrypted with the latest technology.

3. Have a question?

We have an awesome customer service team who lives and breathes this stuff:

ANTENNA TECH SUPPORT ONLY:

  • INQUIRY@CHAMELEONANTENNA.COM

PENDING ORDER INQUIRIES ONLY:

  • ORDERS@CHAMELEONANTENNA.COM


MILITARY INQUIRIES:

  • INQUIRY@CHAMELEONANTENNA.COM
  • 775-742-5165

BUSINESS INQUIRIES:

  • SUPPORT@CHAMELEONANTENNA.COM

Frequently asked

When will my order ship?
Current order status, processing estimates, and delivery timing are provided through checkout and order updates.

Do you ship internationally?
We sure do. Please note that international orders take significantly longer for delivery and may be subject to import/value-added taxes that are beyond our control.

How do I contact someone?
Customer service hours are Monday - Friday: 9am - 5pm PST. Please allow up to 1-2 days for someone to get back to you. We can be reached by phone at 888-628-9020 and by email here Customer Service

Documented configuration guide

CHA URT1 Application Center

Choose the antenna family and feed method that match your operating objective. Each path below comes from the June 12, 2026 Applications Guide and remains subject to the current URT1 operator manual and product-specific instructions.

Coverage1.8–54 MHzConfiguration and match dependent
Matching range5–1,500 ΩNot every load will match on every frequency
Memories16,000Approximately 0.1 s memory recall
Tuning power0.5–15 W10 W recommended for routine tuning
A

Coaxial-fed antenna

Use the bottom ANTENNA connector

Connect the antenna feed line to the Tuner Unit’s ANTENNA connector. Leave the top Beehive connector unused.

B

Single-wire or direct-fed antenna

Use the top Beehive connection

Connect the radiator as documented and provide the required ground or counterpoise at the Ground connector. Leave the ANTENNA connector unused.

Never use the ANTENNA and Beehive connections at the same time. Do not place an arrestor, switch, meter, choke, or other device between the Coupler Unit and Tuner Unit unless Chameleon specifically documents it for the DC/control path.
Show:

Showing all 10 documented application paths.

01Coaxial feed

General Coaxial-Fed Antennas

Place the Tuner Unit at or near the antenna feedpoint to keep the high-SWR portion of the system short, or use it locally when the application requires an indoor tuner.

Connection
Bottom ANTENNA connector
Required
50 Ω feed line and a documented coax-fed antenna
Boundary
Beehive connector remains unused
Applications Guide p. 4 · Operator Manual figures 4 and 10
02Single wire

End-Fed and Single-Wire Antennas

Use the weather-resistant Tuner Unit outdoors at the radiator end for an EFRW, long wire, ground-mounted vertical, or another specifically documented single-wire application.

Connection
Top Beehive connector
Required
Counterpoise or suitable ground at the Ground connector
Boundary
Avoid half-wave wire lengths on intended bands; verify current length guidance
Applications Guide p. 5 · Operator Manual pp. 9–13
03MPAS READY

MPAS 2.0 or MPAS Lite Whip

Replace the broadband matching transformer with the URT1 and optional URT1 MB to create a remotely tuned portable vertical using the documented whip, mount, and return-current system.

Required
URT1, URT1 MB, approved whip and mount, radial/counterpoise system
Advantage
Tuning occurs at the antenna rather than after a high-SWR feed line
Boundary
Use only the documented mechanical and electrical stack
Applications Guide p. 6
04MPAS READY

MPAS 2.0 — 73 ft Wire

Use the MPAS 2.0 antenna wire as a remotely tuned end-fed configuration with the URT1 at the feedpoint and the return-current path required by the selected geometry.

Radiator
Documented 73 ft MPAS antenna wire
System objective
1.8–54 MHz, subject to site, geometry, and achievable match
Boundary
Wire height, routing, support, and counterpoise remain configuration-specific
Applications Guide p. 7
05Portable vertical

CHA Basic Vertical

The guide presents a remotely tuned 80–6 m BV path that removes routine whip-length and loading-coil adjustment from the deployment procedure.

Required
URT1, URT1 MB, Blank Adapter, approved whip/mount, Puck Hub and radials
Radials
Connect to the Puck Hub below the Blank Adapter
Boundary
80–6 m is the guide’s system objective, not a guaranteed match at every site
Applications Guide p. 8
06Loop system

TDL with HYBRID

Add the URT1 at the feedpoint side of the documented TDL HYBRID configuration to reduce high-SWR feed-line loss while retaining the matching transformer.

Connection
Coaxial-fed through the ANTENNA connector
Best operating range
Guide identifies 40–10 m as the strongest use case
Boundary
TDL geometry remains SS17-based; SS25 is not an approved substitution
Applications Guide p. 9
07Direct-fed loop

TDL with Blank Adapter

Replace the matching transformer with the URT1, URT1 MB, and Blank Adapter for the guide’s directly tuned TDL configuration.

Documented range
60–6 m; best on 40–10 m
Required
URT1, URT1 MB, Blank Adapter, documented TDL components
Boundary
Follow the guide’s exact loop-feed connections; SS25 is not approved
Applications Guide p. 10
08End-fed wire

EMCOMM II V2 and EMCOMM III

Replace the matching transformer with the URT1 to create a remotely tuned end-fed random-wire application using the selected EMCOMM radiator and documented return-current path.

Products
EMCOMM II V2, EMCOMM III Base, EMCOMM III Portable
Connection
Single-wire/direct feed with required counterpoise or ground
Boundary
The original 160–6 m antenna claim does not guarantee a URT1 match on every frequency
Applications Guide p. 11
09Full-wave loop

CHA SKYLOOP 2.0

Replace the SKYLOOP matching transformer with the URT1 at the feedpoint for the guide’s remotely tuned horizontal loop path.

System objective
Maintain the documented 160–6 m antenna coverage objective
Required
Exact SKYLOOP wire geometry, supports, feedpoint connections, and URT1 path
Boundary
Match range, installation height, ground, and loop geometry determine actual results
Applications Guide p. 12
10Vehicle installation

102 in Mobile Whip

Install the Tuner Unit near the rear antenna mount and the Coupler Unit near the operator for a compact remotely tuned vehicle antenna.

Radiator
Standard 102 in whip
Documented range
40–6 m
Required
Proper vehicle bonding/ground, safe mount, short antenna-side path, protected cable routing
Applications Guide p. 13

Primary sources

Applications of the Universal Remote Tuner 1, 6/12/2026, and CHA URT1 User Guide, 5/24/2026. Current Chameleon operating policy controls where a later approved limit differs from an older document.

Open Applications Guide ↗ Open full CKB center

Overall rating: 4.8333335 / 5 from 30 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

Simple and effective

"Having the control voltage on the coax makes it possible to use with any transceiver. With the tuner remote, the antenna ideas are endless. Depending on antenna design, a Balun or unun may be needed also, inline with the antenna. The build quality seems to be solid. At home or portable I think it’s a good option."

— Karrie B. (5/5)

Excellent Build

"I needed a good tuner for my 73’ wire I snuck into my apartment attic. The URT1 seemed like a perfect fit. When I received it I was blown away how solid the tuner was! Built like a tank. Hooked it up and honestly the rest is history. I’m running a IC-7300mk2 and added the Click2Tune from Sota and makes tuning simple and no mistakes. I always run 30 watts max for digital so this should last my lifetime! 73 Bill N1LRM"

— William B. (5/5)

CHA URT1

"The CHA URT1 is built fairly tough though I doubt water resistant or water proof. For the money, there are better (smaller, lighter, cheaper) tuners that can be rigged into a water tight Pelican case for environmental protect, battery power, and physical durability."

— David H. (3/5)

good investment

"I use my tan URT-1 mounted on a portable Will-Burt Expedition series mast w/EZ Raze at 30 feet and coax feed a 25 foot telescopic whip with 11, 16. 5, 33 and 42 foot fanned counterpoises, a 20M Delta loop beehive fed at the 30 ft apex and coax fed dual 25 foot whip V dipole. So far, this tuner has tuned everything I have tried. I think it is a good investment. Funny thing, my URT-1 has the labeling oriented so that the beehive connection is up. I like that this unit is Chameleon rugged."

— HT W. (5/5)

H

"H"

— Demetrios J. (5/5)

Auto tuner.

"Good delivery. The product has nit been tested yet."

— Henri P. (4/5)

CHA URT1 with 25 ft vertical

"With a 25 ft vertical radiating element and a 16ft radial hanging vertically from our deck it tuned ham bands between 10m through 80m and made several contacts hunting 20m POTA. A choke was used at the coax to tuner connection."

— Paul M. (5/5)

Good stuff

"Really well constructed. Has worked as advertised and is a great addition to my low power activities. 👍🙂"

— Jamie C. (5/5)

Appears to work, but documentation a little sketchy

"I have not used the tuner in anger, but I have hooked it up with a fairly easy load (42’ and 8. 5’, fed through a 4:1) and it tunes up 80-10 just fine. The documentation, however, describes some other revision of the control box (one that doesn’t have a “complete” led), and it’s totally unclear what that led even means. It’s not what you would like, which is a led that lights when a tuning sequence begins and extinguishes when it ends (either by succeeding or giving up). It just seems to flash when the tune button is released. I thought that it might flash when the tuning sequence ends, but I have never seen a delay before the flash, even when I do deliberate things to force what should be a long tuning sequence."

— David C. (4/5)

Makes a Good Chameleon Antenna a Great Antenna

"The URT-1 makes a good Chameleon Antenna a great antenna. As a big fan of tuners at the antenna, the URT-1 makes it easy to do at home or in the field. I power mine from Anderson power poles on my go-box and can carry the tuner, controller (bias-T) in my Chameleon sling pack with components of the Tactical Delta Loop. How nice to get nearly 1:1 SWR from 75m through 10m!"

— Keith G. (5/5)

Q&A

MORE THAN THE HARDWARE

Keep the guide, engineering, and field updates close.

Join the Chameleon Field Network for practical deployment guidance, current product documentation, new CKB lessons, and important product updates.

See what's new at Chameleon