
CHA URT1 (Universal Remote Tuner 1)
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*** READ THE USER GUIDE BEFORE USING ***
The CHA URT1 is a remote outdoor tuner for almost any type of antenna and any brand or model transceiver. The CHA URT1 is unique in that it can be used for coaxial cable or wire fed antennas. This wide-range tuner will match wire antennas, such as a vertical, random wire antenna, or a long wire antenna. It can also be used with coaxial-fed antennas, like an Inverted “V” or dipole. Also, the CHA URT1 does not need a transceiver-specific control cable, so it works with any brand or model of transceiver. The rugged Tuner Unit is weatherproof and designed to be permanently installed outdoors at or near the antenna feed point, so loss due to high SWR on the feedline is avoided.
The CHA URT1 covers 1.8 – 54.0 MHz and has 16,000 memories for quick recall and tuning with previously used settings. It can match any antenna with an impedance of 5 to 1,500 Ohms within seconds and can handle up to 125W SSB Phone & CW, 100W SSB Phone & CW on 50 MHz, 60W all other modes (see specifications). The CHA URT1 consists of two units: a Coupler Unit and the Tuner Unit. The Tuner Unit is in a rugged weatherproof housing and contains the antenna matching network and controller. It is normally installed outside at or near the antenna feed point. The Coupler Unit contains the operator controls and status indicators. It uses a bias-T circuit to send power and control signals to the remote Tuner Unit over the connecting coaxial cable, so there is no need to order or install a separate transceiver-specific control cable. The Coupler Unit is not weatherproof and must be installed inside near the operator and transceiver.
IF YOU'RE INSTALLING A LIGHTNING ARRESTOR INLINE WITH THE CHA URT1 YOU'VE TO USE: Morgan RF Systems M-303U-PP coaxial arrestor
Our tuners use latching relays. Once the tuner is tuned the relay's latch and power is turned off. It saves on battery drain. The tuned frequency will be stored in memory. When you change frequency or bands you need to apply power and energize the tuning process again. If the frequency is in memory the tuning process will be quick!
WE RECOMMEND TO INSTALL A RFI CHOKE AT THE FEEDPOINT OF THE TUNER.
Consist of:
1 X Universal Remote Tuner 1
1 X Coupler Unit
1 X 12V Hardwire Power Cord
2 X U-Bolt Attachment Brackets and Hardware
2 X U-Bolt(1/4" x 1-3/4" x 3")
Specifications
- Frequency Range: 1.8 to 54.0 MHz
- Power Handling:
- HF: 125W SSB/CW
- 6M: 100W SSB/CW
- All other modes: 60W
- Tuning Power Range: 0.5 - 15W
- Tuning Time: 5 seconds for full tune: 0.1 Second for memory tune.
- Memory: 16,000 frequencies
- Power Supply: 12-14 DC, 1A
- Temperature Range: Approximately 14°F (-10°C) to 140°F (60°C)
- Turner Unit Dimensions: 8.8 X 5.1 X 1.8 inches (223mm X 130mm X 45mm)
- Tuner Unit Weight: 38.8 oz (1100g)
- Coupler Unit Dimensions: 5.0 X 4.1 X 7 inches (128mm X 105mm X 43mm)
- Coupler Unit Weight: 14.1 oz (400g)
- Current consumption: 500mA or less
- Magnetic latching relay. Once the tuner is tuned the relay's latch and power is turned off. It saves on battery drain. The tuned frequency will be stored in memory. When you change frequency or bands you need to apply power and energize the tuning process again. If the frequency is in memory the tuning process will be quick !
Optional:
1 X 12V (120 VAC, 1 Amp) Power Supply
1 X 3ft of 50 Ohm stranded center conductor RG-58C/U
⚠️ Power Supply Warning for Long Coax Runs
If you’re planning to use more than 100 feet (30 meters) of coaxial cable with either the CHA URT1 or CHA URT-1500 High Power Universal Remote Tuner, please be aware of the following critical limitation:
Due to voltage and current requirements of the tuner units and the resistance introduced by long coaxial cable runs, the power supply signal may experience voltage drop or insufficient current delivery—resulting in improper tuner operation or failure to activate.
Specifications Recap:
- CHA URT1: 12–14V DC @ 1A
- CHA URT-1500: 12–14V DC @ 2A
When using longer coaxial cables, especially RG-58, RG-8X, or similar with higher DC resistance, the power delivery from your base unit to the remote tuner can degrade significantly. This can lead to:
- Tuner not receiving enough voltage to function
- Inconsistent or failed tuning cycles.
- Increased risk of voltage regulator stress or failure within the tuner.
Recommendations:
- Use heavier gauge coax (e.g., LMR-400 or RG-213) for reduced DC resistance.
- Keep coaxial cable length below 100 feet whenever possible.
- Use a remote power injection system or dedicated DC line if long coax runs are unavoidable.
- Ensure your power supply delivers a stable and clean 13.8V at the required amperage, measured at the tuner end of the coax.
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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.
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