LDG Autotuners

The First Autotuners with True Plug and Play Simplicity.
Now With a 16" Coax cable terminated with PL-259s, Icom and Yaesu Interface Cables Included - Nothing More to Buy

AT-100 Pro 

The LDG AT-100Pro is the next step in the evolution of the automatic tuner. This desktop tuner covers all frequencies from 1.8 – 54 MHz, and will automatically match your antenna in no time.

 It features a two-position antenna switch, allowing you to switch instantly between two antennas. The AT-100Pro requires just 1 watt for operation, but will handle up to 125 watts, making it suitable for everything from QRP to a typical 100 watt transceiver.

The AT-100Pro includes over 2,000 memories for each antenna, automatically storing tuning configurations for each frequency and band as you use them. Frequency sensing circuitry lets the AT-100Pro “know” your operating band and frequency. Whenever you transmit on or near a frequency you’ve used before, the AT-100Pro can retune from memory almost instantly.

AT-200 Pro Autotuner

Time was, 100 watts was a lot of power. Today, more and more transceivers feature 200 watts output. Even though many of these modern radios feature a built-in tuner, it’s range and features are usually quite limited; if you need a tuner, you probably need a better one than they built into the radio. The LDG AT-200 is designed for this new generation of rig.

Many QRP operators have a small 100-150 watt amplifier for times when you need a few more S-units. The AT-200 is ideal for this kind of operation; it’s minimum required power is only 5 watts, but it will handle the higher power as well.

The AT-200 will handle up to 250 watts SSB or CW on 1.8 – 30 MHz, and 100 watts on 54 MHz. It features LDG’s state-of-the-art, processor-controlled Switched-L tuner. It will match virtually any kind of coax-fed antenna, including Yagis, dipoles, inverted Vs, slopers, loops, just about anything. It will typically match a 10:1 SWR down to 1.5:1 in just a few seconds. You can also use the AT-200 with longwires, random wires and antennas fed with ladder line with the optional LDG balun.

The AT-200 features over 16,000 3D memories, automatically storing tuning data for frequencies and bands as you use them. When you transmit on or near a frequency you’ve used before, the AT-200 can restore the tuning data almost instantly. It learns as you use it, adapting itself to your operating patterns for faster and faster tuning. The 3D memory system allows up to eight antenna settings to be stored for each frequency.

Operation couldn’t be simpler: while transmitting a carrier, just press the Tune button. An automatic tuning cycle will begin, then end a few seconds later with the tuner set at the lowest SWR (almost instant for frequencies stored in memory). Optional interface cables for Icom, Kenwood, Yaesu and Alinco make the entire tuning process a one-button operation.

The AT-200 is the latest in a long line of innovative LDG tuners. Get the most out of your Kenwood, Yaesu, Ten-Tec or Icom radios that operate at higher power.
Now With a 16" Coax cable terminated with PL-259s, Icom and Yaesu Interface Cables Included - Nothing More to Buy

New AT-1000Pro Autotuner 

Building on the success of the AT-1000, LDG Electronics has refined and expanded its flagship 1KW tuner

The AT-1000Pro has a much larger, easier to read cross-needle meter with two selectable scale ranges (100 and 1,000 watts). Each control button has a built-in LED indicator so you can see the tuner’s status at a glance. The AT-1000Pro will interface with many popular transceivers, enabling their TUNE button to control the AT-1000Pro’s operation. Dedicated control buttons allow you to fine-tune capacitance and inductance on those rare occasions when the AT-1000Pro can’t find a perfect match by itself.

The AT-1000Pro will tune from 1.8 to 54.0 MHz continuously, and will match an amazing range of antennas, from Yagis and dipoles to inverted-Vs and slopers; virtually any coax-fed antenna from 6 to 1000 ohms impedance (16 – 150 ohms on 6 meters). Tuning time is usually under 4 seconds. If you’re transmitting near a frequency with stored tuning parameters, it will set those parameters in under 0.2 seconds. Longwires or antennas fed with ladder line require an external balun.

PLEASE NOTE:  THE AT1000Pro PRICE SHOWN IS THE MINIMUM ADVERTISED PRICED PERMITTED BY THE MANUFACTURER .

 If you see a lower price offered by an authorized dealer please contact us at sales@cheapham.com We will match/beat any legitimate price.

AT-1000Pro Autotuner - NEW ARRL Antenna Book 
COMBO SPECIAL  

This 21st edition has been extensively revised to include information you can use to build highly optimized or  specialized antennas. The book includes new content on Near Vertical Incidence Skywave (NVIS) techniques, phased arrays, S-parameters as used in modern vector network analyzers (VNA), Beverage receiving antennas, mobile “screwdriver” antennas, ionospheric area-coverage maps, and much…much more.

Fully searchable CD-ROM included!
Bundled with this book is a CD-ROM containing The ARRL Antenna Book in its entirety, using the popular Adobe® Reader® software for Microsoft® Windows® and Macintosh® systems. View, search and print from the entire text, including images, photographs, drawings…everything!

ADD THE NEW ARRL ANTENNA BOOK TO THE AT-1000PRO FOR ONLY $15 MORE

DISCOUNT SPECIAL

AT-7000 Autotuner 

The AT-7000 is just 6.5" long, 6.5" deep and 1.5"

tall. It weighs only 1.5 pounds, and gets its DC

756Pro III. The AT-7000 comes fully assembled, aligned and

• 0.1 to 125 watt power range (SSB and CW), 100W on 6M - 2000 memories for instantaneous band

changing -  Controlled from Icom Tuner button on radio. - Compatible with any Icom radio that is AH-4 or

AH-3 compatible. - Partial radio list: IC-7000, IC-706 (all), IC-703,

IC-718, IC-746 and IC-756 (all). - Tuning time: 0.1 to 6 seconds full tune, 0.1

seconds memory tune. - 1.8 to 54.0 MHz coverage. Built-in frequency

sensor. - Tunes 4 to 800 ohm loads (16 to 150 on 6M), 4

to 3200 ohms with optional 4:1 Balun. - For Dipoles, Verticals, Vs, Beams or any Coax

Fed Antenna. - Optional external Balun allows tuning of random

length, long wire or ladder line fed antennas. - Includes Icom interface cable and coax jumper.

Ready to use right out of the box. - Small Size Enclosure: 6.5L” x 6.5W” x 1.25H”.

Interface cables included!

Your discounted price   $155.00 

AT-897 Autotuner

If you own a Yaesu FT-897 and want a broad range automatic antenna tuner, look no further! The AT-897 Autotuner mounts on the side of your FT-897 just like the original equipment. We even added the ability to mount the "feet" on the side of the tuner so when you are transporting your rig by the handle, you can safely set it down and not worry about scratching the case.

The AT-897 is microprocessor controlled and features the tuning ability our customers have come to expect from our products. The tuner has a front panel button to initiate the tuning sequence and will bypass the tuner if pressed momentarily. The red LED lights during while the tuner is active.

The AT-897 takes power directly from the CAT port of the FT-897 and provides a second CAT port on the back of the tuner so if you are using another CAT device, hooking it up couldn't be easier.

If you are a QRP enthusiast or plan on operating via internal batteries, the AT-897 is your tuner! The AT-897 does not need a fan, let alone one that is constantly running. Current consumption when it is tuned is in the micro-amp range. Since we use latching relays, you can even remove power from the tuner after you have tuned on the band you are going to operate!

The FT-897 is a great radio. The FT-897 / AT-897 combination makes a fantastic shack!

RADIO INTERFACE CABLE IS INCLUDED !

KT-100 Autotuner 

New from LDG for Kenwood Radios

Kenwood makes some great radios; here at LDG we love our Kenwoods, but when they stopped producing the AT-300 tuner, they left us high and dry with no dedicated tuner for the entire Kenwood line. So if you have a TS-2000, TS-50 or TS-480 or any Kenwood rig that is AT-300 compatible, you’re just out of luck. Of course, most any LDG tuner will work just fine with a Kenwood rig, but wouldn’t it be great if you could use that Tune button on the radio, which Kenwood orphaned when they deep-sixed the AT-300?

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.

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

• 2000 memories for instantaneous band changing.

• Controlled from Kenwood Tuner button on radio. Powered from Kenwood radio.

• Works with any Kenwood radio that is AT-300 compatible.

• Partial radio list: TS-50, TS-480, TS-570, TS-690, TS-850, TS-870, TS-2000.

• Tuning time: 0.1 to 6 seconds full tune, 0.1 seconds memory tune.

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

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

• For Dipoles, Verticals, Vs, Beams or any Coax Fed Antenna.

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

• Includes Kenwood interface cable and coax jumper. Ready to use right out of the box.

• Small Size Enclosure: 6.5L” x 6.5W” x 1.5H”.

• Weight: 2 pounds

PRE-ORDER YOURS TODAY AT OUR DISCOUNTED PRICE

Z-100 Autotuner

The Z-100 is the definitive low cost automatic antenna tuner! It has been designed from the ground up to provide the power handling you asked for, in a small, lightweight package that is perfect for portable as well as sitting on your desk in your shack!

The Z-100 will tune with 0.1 to 125 watts (50 watts on 6 meters), making it an excellent choice for almost any radio or operating style. Backpackers and QRP operators will appreciate the latching relays. Power can be removed from the tuner once you have tuned. Additionally, when the tuner is not tuning, it draws nearly zero amps.
Additionally, the Z-100 features 200 fast memories which will decrease tuning time up to 95%!
This automatic antenna tuner will interface to many radios for added convenience. Our optional interfaces integrate the tuner to the radio so you can take advantage of radio faceplate "tune buttons" (if so equipped) or tuner signaled tuning. Please consult your radio manual for details on using it with an automatic antenna tuner. Interfaces are available for certain Icom, Alinco, Yaesu, and Kenwood radios.
Simple operation is the key to the Z-100. Provide a continuous carrier, then press and hold the tune button for 1 second. The Z-100 tunes. The red LED indicates tuner activity and the green LED indicates an SWR of 1.0 to 1.5 (steady Green LED) and 1.5 to 2.0 (blinking Green LED). If your antenna is already resonant, place the tuner in bypass. Pressing and releasing the tune button quickly will bypass the tuner, taking all tuning components out of line.
Operating range is 1.8 to 54 MHz and will tune a 10:1 SWR (3:1 on 6 meters) down to 1.5:1 or less. It will tune almost any coax fed antenna including dipoles, beams, and verticals. Add any 4:1 Balun to use ladder line or to tune long wire or Zepp antennas.

Please compare the price of the Z-100 to other brand auto and manual tuners... enough said!

Now With a 16" Coax cable terminated with PL-259s, Icom and Yaesu Interface Cables Included - Nothing More to Buy

Z-11 Pro Autotuner 

Tuner Interface Cables 

LDG Electronics offers optional radio to tuner interface cables for many radios. Their tuners do not require an interface to operate. These interface cables allow our Autotuners to be controlled like original equipment or, as in the Y-OTT for Yaesu radios, to provide convenient mode control to the radio by pressing the button on the front of the tuner.
Additionally, the new interface cables provide power to the tuner from the radio, eliminating the need for an additional cable and power supply.

Icom Interface Cable

Description:
Interface cables providing DC power and control between the radio and the autotuner. Available in both long and short lengths.
Supported Radios:
IC-706, IC-707, IC-718, IC-725, IC-728, IC-736, IC-738, IC-746, IC-756, IC-765, and IC-775 (this interface will work with any ICOM radio that supports the ICOM AH-3 or AH-4 Tuner).
Functionality:
Pressing the tune button quickly on the radio by-passes the tuner. Pressing and holding the tune button on the radio or tuner starts the tune process.

Cable Specifications:

(Long) AT-100Pro, Z-100 Autotuners: Icom-IC1 10' long and AC-1 6" long 

Your discounted price $18.00

(Short) AT-100Pro, Z-100 Autotuners: Icom-IC2 and AC-1 14 inches.

Your discounted price  $7.95

LDG Baluns 

RBA-1:1 Balun

The RBA-1 1:1 Balun was designed to allow easy interface of ladder line antennas and long wires to the LDG line of Automatic Antenna Tuners. The Balun operates "stand alone", thus does not require an LDG Tuner. It may be used with any of your long, random, or ladder line antenna projects.

RCA-14
The RCA-14 is a breakout box for the accessory jack on most popular transceivers. It comes with cables with the right DIN plugs and all the output are simple RCA jacks. Plug the RCA-14 into your radio's accessory jack and all of your ports are right at your finger tips.
The RCA-14 comes with a DIN-13, DIN-8, DIN-7, Mini DIN-8 and Mini DIN-6 cables. Compatible with these radios and more: Icom: 703, 706, 718, 746, 756, 7000 and 7800. Yaesu: 817, 857, 897, and 840. Kenwood: 480, 570, and 2000. Ten Ten Orion and Orion II.

Specifications:

• Weight: 1 pound

• Configuration: DIN input to RCA output

• Includes five interface cables for the most popular radios.

• Enclosure size: 6.5W x 3D x 3L"

Multi-DC

Multi-DC 12 Volt DC Distribution Box

The provided cables have the correct coaxial DC power plug to connect all your LDG products. This unit can source up to 3 amps.  Each of the 6 outputs can provide 0.5 amps to your LDG accessories.  Six output cables each 3 feet long are included. 

Specifications:

• Weight: 1 pound

• Configuration: Six DC outputs.

• Enclosure size: 6.5W x 2.5D x 2.5L"

DTS-4 4 Position Coax Switch 

Frequency range: 1.8 – 54 MHz

With the DTS-4 you can instantly switch your rig between 4 antennas with the press of a button. All five coax sockets (4 inputs and one output to your rig) are lined up across the back of the switch, so all the coax can run straight back. This means the DTS-4 will fit in just about anywhere on your operating desk. A bright red LED indicates the antenna in use. At a touch of the control buttons, all inputs are grounded, helping to protect your radio from Mother Nature.
Remember that lightning storm? The DTS-4 can sense when your rig is turned off, and automatically ground all antenna inputs! You simply run a line from a DC-out port on your rig (most modern rigs have at least one) to the DTS-4 and set it to Radio Sense mode with a simple button-press. From then on you're protected; when you turn your rig off everything is automatically grounded. When you power back up, the DTS-4 automatically resets to the antenna you were last using. Use your radio’s auto power off feature and it will even protect you if you forget!
But that's just the beginning! How about remote-mounting the DTS-4, say on the floor under the desk, or even in the basement to keep all that pesky coax at bay, and using a compact remote control box on your operating desk?
The DTS-4R remote control fills the bill, with a full set of control buttons and indicator lights, but only a single, slim control cable running to the remote DTS-4 switch.
The DTS-4 handles up to 1500 watts of RF power on HF (250W on 6M), and can be used with any coax-fed antenna. The Radio Sense feature needs at least 2 volts from your rig, at 1 mA current. The DTS-4 features Teflon SO-239 connectors, and requires an external 12 vdc power supply at 250 ma. If the external power supply fails, all inputs are grounded, so it's fail-safe. Switching is done by rugged, sealed industrial relays.
Add the DTS-4 and DTS-4R to your shack soon; it's the modern coax switch you've been waiting for.

DTS-6 6 Position Coax Switch

Frequency range: 1.8 – 54 MHz  

 With the DTS-6 you can instantly switch your rig between 6 antennas with the press of a button. All seven coax sockets (6 inputs and one output to your rig) are lined up across the back of the switch, so all the coax can run straight back. This means the DTS-6 will fit in just about anywhere on your operating desk. A bright red LED indicates the antenna in use. At a touch of the control buttons, all inputs are grounded, helping to protect your radio from Mother Nature.
But that's just the beginning! How about remote-mounting the DTS-6, say on the floor under the desk, or even in the basement to keep all that pesky coax at bay, and using a compact remote control box on your operating desk?
The DTS-6R remote control fills the bill, with a full set of control buttons and indicator lights, but only a single, slim control cable running to the remote DTS-6 switch.
Remember that lightning storm? When used with the DTS-6R, the DTS-6 can sense when your rig is turned off, and automatically ground all antenna inputs! You simply run a line from a DC-out port on your rig (most modern rigs have at least one) to the DTS-6R and set it to Radio Sense mode with a simple button-press. From then on you're protected; when you turn your rig off everything is automatically grounded. When you power back up, the DTS-6 automatically resets to the antenna you were last using. Use your radio’s auto power off feature and it will even protect you if you forget!
The DTS-6 handles up to 1500 watts of RF power on HF (250W on 6M), and can be used with any coax-fed antenna. The Radio Sense feature needs at least 2 volts from your rig, at 1 mA current. The DTS-6 features Teflon SO-239 connectors, and requires an external 12 vdc power supply at 100 ma. If the external power supply fails, all inputs are grounded, so it's fail-safe. Switching is done by rugged, sealed industrial relays.

TW-2 Talking Wattmeter

Talking Wattmeter for 50 MHz, 144MHz, 220 MHz and 440 MHz

The TW-2 Talking Wattmeter is the companion unit to LDG's popular TW-1. It provides an aural spoken indication of power and SWR using a synthesized voice in the VHF and UHF ham bands. It is ideal for the vision-impaired, for those of us in the “bi-focal set”, or just for those times when you need to be looking somewhere else. It's also perfect for mobile operation; you can check your power and SWR and still keep you eyes on the road.
Simply set the band you want to use, and at the press of a button, the TW-2 speaks the forward power or SWR.

The TW-2 also offers a continuous tone mode for tuning. Simply press and hold the Forward or SWR button, and a tone indicates power or SWR reading. As you adjust your transmitter or antenna tuner, a higher tone indicates higher power or SWR. This is just the thing for peaking your satellite uplink amplifier while keeping a close watch on the collector current. It’s also great for making those adjustments to your mobile antenna.
You can select either long or short voice reports. Long reports include descriptors like “thousand” or “hundred” and end with “watts”. Short reports speak only the numerical value of the measurement you’ve selected for a quick reading.
The TW-2 will handle up to 250 watts with a resolution of 0.1 watt. The TW-2 is accurate to +/- 5% of the reading across the entire power range; this may very well be the most accurate wattmeter you own.
The TW-2 is microprocessor controlled, and can easily be upgrade in the field with a simple chip exchange. It requires 7 – 15 volts DC at 200 mA maximum, but consumes almost no current when not speaking

Your discounted price $129.00

LDG FT-Meter   

New Model with Bright-Blue Face 
The new FT-Meter presents a lush, highly readable bright-blue 2.5" meter face with calibrated scales for signal strength and discriminator reading on receive, and power output, SWR, modulation, ALC action and supply voltage on transmit. Two-Year Warranty.

Yaesu's popular FT-857(D) and FT-897(D) transceivers are wonders of compact efficiency. These do-anything, go-anywhere transceivers were science fiction just a few years ago, but ham's today are using them in shacks, mobiles and on dxpeditions from the back yard to the top of the world.

About the only problem with these radios is that us hams who are old enough to remember when stuff like this really was science fiction are also old enough to wish that the display was just little bit bigger. As we grow in wisdom and experience, we also grow to depend on bifocals; those tiny little screens are just plain hard to read! Add to that a strong desire to see a real live meter needle bouncing on voice peaks, and you find yourself wishing Yaesu had thought all this through when they designed the radio.

Well, in fact they did. A little known feature of these radios, noticed only by compulsive manual readers, is a meter jack on the bottom of the front panel. You have to figure that Yaesu knew they needed a bigger display all along, but just left it as an exercise for the user. Well, help is here! The LDG FT-Meter is a low-cost, plug-and-play solution to all your FT metering needs.

The FT-Meter presents a lush, highly readable 2.5" meter face with calibrated scales for signal strength and discriminator reading on receive, and power output, SWR, modulation, ALC action and supply voltage on transmit. Each function is selectable from the radio's menu. Easily visible from anywhere on your desk or dash, the FT-Meter is illuminated by any external 12 vdc source. The FT-Meter comes fully assembled and ready to go; just plug it into the radio and you're in the picture like never before.

Your discounted price $45.75

LDG  DM-7800

Icom’s magnificent IC-7800 transceiver is a quantum leap is amateur radio technology. Sure, it cost more than your first car but it offers features and performance unheard of in lesser rigs. Icom did a pretty good job on the make-believe LCD meters, but let’s face it… sometimes nothing but a real, live meter will do.

Your discounted price $155.00

12 VDC Power cube for use with LDG products.

12VDC, 500ma Regulated Power Cube.

CURRENTLY OUT OF STOCK

Your discounted price $9.95

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