Chameleon Antenna Tuner CHA URT1, 1.8-54 MHz, 16K memories, 125W SSB, POTA, SOTA
CHA URT1 (Universal Remote Tuner 1)
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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 SUCH AS THE MC-1-500 AT THE FEED POINT 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 power supply
1 X 3ft of 50 Ohm stranded center conductor RG-8X with PL-259 Connectors
For RFI common mode suppression use, mix 31 is effective from 1-300 Mhz, mix 43 works from 25-300 Mhz, Mix 61 is for 200-2000 Mhz, and mix 77 favors .1-50 MHz. These frequencies are those of the interfering signal to be eliminated, not the operating frequencies of the equipment to be protected. See Mix Selection for other applications.
NOW WITH QUANTITY PRICING FOR CLUB , VOLUME PURCHASERS!
Bead dimensions are shown in the picture below and in the table as A, B, C
Ferrite Bead Dimensions
Application Note: Use impedances for each bead at your desired frequency to select number of beads needed for desired Z. For example if you have a 50 ohm RG-8 coax cable and want a choking impedance of 500 ohms at 10 Mhz, you can check the FB102 column (since FB102 will pass RG-8 through its center ID) at 10Mhz and find that Mix 31 has a Z of 108 ohms/bead and Mix 43 has a Z of 91 ohms/bead. For 500 ohms we would need 5 mix 31 beads or 6 mix 43 beads to have greater than 500 ohms. Mix 31 has better response below 10 Mhz but above 10 Mhz mix 31 and mix 43 are very close. If you need more Z, just use more beads in series on the cable or use more windings thru a larger ID bead (e.g. USE FB102-31 for 4 turns of RG-8X for 16X increase in Z per bead – see pictures below for examples). Use Mix 61 for VHF and above for RFI/EMI suppression and below 30 Mhz for multi-ratio impedance transformers (baluns/ununs). See Mix Selection for other applications.
For extra large cables use the FB400-31 which has an inside diameter of 3 inches (76mm).
Frequency Range Comparison Chart
(FB56-xx size)
Multi-turn Common Mode Choking Impedance Increase Example (FB56-43)
Ferrite Bead relative size comparison
Left to right sizes: FB56 (ID = .25″), FB102 (ID=.505″), FB103 (ID=.77″)
SLIP ON Sizes for Heliax and Coax Cable
Cascaded Common Mode Chokes/Line Isolators/1:1 Baluns
 RG58 4 turns on 2 FB102-31 for 2000 ohms choking impedance |
 RG58 12 turns on FT240-43 for 4000-6000 ohms choking impedance |
Handy Wire Size reference for ferrite bead sizes needed
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Connector already on cable? See Snap On Ferrite Beads for convenient installation on cables with connector already installed.