Automatic Antenna Tuners

The selection of any antenna tuner needs care! You need to think about the power handling capability, the range of antenna you need to couple to, what type of feed lines, product quality, serviceability  and of course, cost.

Front panel view of the AT Auto

Palstar AT Auto 1500W Auto Tuner

 The ‘Engine Room’ of the AT Auto

SGC SG-230 Antenna Coupler

SGC SG-237 Antenna Coupler

This is the younger brother of the SG-230 with three major differences. The first is that it operates from 1.6 to 60MHz, the second being it is about a quarter of the size of the SG-230 and the third is the maximum allowable RF power is 100W PEP. Once again the tuner is fully waterproof to a depth of 500mm

 

This is an ideal mobile tuner to use with commonly available radios such as the Icom 706/7000 and the Yaesu 857. It can also be used with several models of the Codan and Barrett commercial HF mobiles.

TTS Systems

LDG AT100 Pro  Antenna Tuner

Specifications

 

· 1 to 125 watt power range (SSB and CW), 100W on 6M.

· Easy to read LED bargraph display for RF power, SWR and status.

· Over 4200 memories for instantaneous band changing.

· Two position antenna switch. Separate memories for each antenna.

· Tuning time: 0.5 to 6 seconds full tune, 0.2 sec memory.

· Selectable user parameters: Auto/Semi, 125/12.5 watt scale, power save and more.

· 1.8 to 54.0 MHz coverage. Built-in frequency sensor.

· Tunes 6 to 1000 ohm loads (16 to 150 on 6M), 6 to 4000 ohms with optional 4:1 Balun.

· For Dipoles, Verticals, Vs, Beams or and Coax Fed Antenna.

· Optional external Balun allows tuning of random length, long wire or ladder line fed antennas.

· Interfaces for Icom and Yaesu included.

· Power requirements: 11 to 16 volts DC at 400 mA Max.

· Small Size Enclosure: 7.5”D x 5.5”W x 2.0”H. Weight: 1.5 pounds.

LDG AT200 Pro  Antenna Tuner

Specifications

· 5 to 250 watts SSB and CW. (100 watts on 6M)

· Easy to read LED bargraph display for RF power, SWR and status

· 16,000 3D memories for instantaneous band changing

· Two position antenna switch with memories for four antennas on each position

· Tuning time: 0.5 to 6 seconds full tune, < 0.1 second memory tune

· Built in frequency counter for memory operation

· Frequency coverage: 1.8 to 54.0 MHz.

· Tunes 6 to 1000 ohm loads (16 to 150 ohms on 6M), 6 to 4000 ohms with optional 4:1 Balun (LDG RBA 4-1)

· For Dipoles, Verticals, Vs, Beams or and Coax Fed Antenna

· Optional external Balun allows tuning of random length, long wire or ladder line fed antennas

· Optional interfaces for Icom and Yaesu available

· Power requirements: 11 to 16 volts DC at 750 mA max during tuning

· Enclosure: 8.5D x 6.0W x 2.0H inches

· Weight: 2 pounds

LDG AT7000  Antenna Tuner

LDG AT897   ‘Bolt On’

Antenna Tuner

Specifications

 

· 100mW to 125W Power range (SSB CW), 100W on 6M.

· 2000 Memories for rapid band changing.

· Controlled from Icom Tune button on radio.

· Compatible with any radio that is AH-3 or AH-4 compatible. 6M tuning not available on radios that are only AH-3 compatible.

· Partial radio list –IC7000, IC706, IC703, IC718, IC746 and IC756.

· Tuning time 0.1 to 6 seconds full tune, 0.1 seconds memory tune.

· 1.8 to 54 MHz coverage. Built in frequency sensor.

· Tunes 4 to 800 ohm loads (16 to 150 ohms on 6M). 4 to 3200 ohms with optional 4:1 balun.

· Includes Icom interface cable and RF jumper. Ready to use right out of the box.

LDG Z11 Pro  Antenna Tuner

LDG Z100  Antenna Tuner

Specifications

 

· Microprocessor controlled

· 200 fast memories

· Switched L tuning network

· Mounts right on the side of the Yaesu FT-897 (not for use with the FT-857)

· Dual function tune control button

· Continuous coverage 1.8 to 54 MHz

· Power rating HF: 0.1 to 100 watts

· Latching relays

· Provides extra CAT port

· Tuning time: 1 to 7 seconds, 4 average

· Antenna impedance: 6 to 800 Ohms (Approximately up to 10:1 SWR)

· Tunes nearly any coax fed antenna.  Use optional Balun for long wires

· Power requirements:  11 to 14 volts DC @ 300 milliamps during tune

· Operating voltage supplied via the CAT port (cable supplied with tuner)

· Enclosure size:  11.5D x 3.25H x 1.5W (measured in inches

· Weight: 2 pounds

Specifications:

 

· 0.1 to 125 watt power range (SSB and CW), 100W on 6m

· Easy to read LED display for SWR and status

· 8000 3-D memories for instantaneous band changing

· Tuning time 0.1 to 6 seconds full tune, 0.1 seconds memory tune.

· Selectable user parameters:  Auto/Semi, threshold, and more.

· 1.8 to 54.0 MHz coverage.  Built-in frequency sensor.

· Tunes 6 to 1000 ohm loads (16 to 150 on 6m), 6 to 4000 ohms with optional 4:1 balun.

· For Dipoles, Verticals, Vs, Beams or and Coax Fed Antenna.

· Optional external Balun allows tuning of random length, long wire or ladder line fed antennas.

· Optional interfaces for Icom and Yaesu available.

· Power requirements:  11 to 16 volts DC at 300 mA Max.  25uA standby current.

· User installable 8-AA or 8-AAA battery holder (not supplied).

· Small size enclosure:  7.7”L x 5.0”W x 1.5”H.  Weight:  1.5 pounds

· Not for use with FT-857(D) or FT-897(D) if you plan to use VHF or UHF.  These two radios transmit a small amount of VHF/UHF RF energy out of the HF port and will fool the tuner into tuning.  Use the AT-100Pro in this case.

Specifications:

· Microprocessor controlled

· High efficiency switched ‘L’ tuning network

· LED indicators tor Status and SWR

· 200 fast memories

· Latching relays, holds tune position forever

· Optimized, low power consumption tuning algorithm

· Tuning time:  0.5 to 6 seconds, 3.0 average

· Current consumption:

·                    Idle  —  nearly zero amps

·                    Tuning  -  300 mA max

· Voltage requirements:  11 to 18 volts (user supplies power source)

· 1.8 to 54 MHz coverage

· Tunes 6 to 800 ohm loads, 10:1 SWR (3:1 SWR on 6 meters)

· Power range 0.1 to 125 watts (50 watts on 6 meters)

· For Dipoles, Verticals, Vees, Beams and Coax Fed antennas

· Optional external Balun allows tuning of random length, long wire or ladder line fed antennas.

LDG’s new KT-100 serves as a dedicated tuner for Kenwood radios: just press the Tune button on the radio. The LEDs on the front panel indicate tuning status, and will show a match in seconds, or even less of you’ve tuned on or near that frequency before; the KT-100 has 2,000 memories for instant recall of the tuning parameters for your favorite bands and frequencies.

If you have an AT-300 compatible Kenwood radio, you can simply plug the KT-100 into your transceiver with the provided cable; the interface powers the tuner, and the Tune button on the radio begins a tuning cycle. The supplied interface cable makes the KT-100 a dedicated tuner for most modern Kenwood transceivers. There are no extra cables to buy, we even include the coax patch cable from the radio to the tuner so it's ready to go right out of the box.

Flexible, low cost, easy to use and just right for your Kenwood transceiver, the KT-100 is the latest in a long line of automatic tuners from LDG that fit in right were you need them the most. And like all LDG products, the KT-100 comes with a two-year, fully transferable warranty

LDG KT-100 Tuner

 

LDG - Z-817 Autotuner