NorTree requires JavaScript
Product Menu
Online Shop > Antenna Tuner Units > Automatic ATUs
* Size 230 x 85 380mm * Weight 2.4kg
The AH-3 is designed for use with all Icom HF transceivers. It stores up to 8 memory locations with minimum SWR settings to provide quick less than 1 second re-tuning. Weather resistant construction, easily fitted in a variety of locations. No adjustments are necessary, just connect the control and antenna cables, supply obtained from Icom transceiver. Tunes a wide frequency coverage from 1.8 to 28MHz with a 12m or longer wire antenna, or 3.5 to 28MHz with the optional shorter AH-2b whip antenna.
The AH-4 is designed for use with all Icom HF transceivers. It stores up to 45 memory channels with minimum SWR settings to provide quick re-tuning. Weather resistant construction, easily fitted in a variety of locations. No adjustments are necessary, just connect the control and antenna cables. Tunes a wide frequency coverage from 3.5 to 50MHz with a 7m or longer wire antenna, or the optional shorter AH-2b whip antenna element.
This automatic antenna tuner is optional for the IC-706MkIIG which does not have its own built-in ATU or the IC-703 which does. The ATU-180 covers 160m to 6m and handles VSWRs up to about 3:1. It does not handle long wire antennas. It is particularly suitable for mobile operation where the effective bandwidth of the mobile antenna can be significantly extended without physically altering the antenna length. The use of the AT-180 permits the transceiver to produce full power output when faced with VSWRs up to 3:1. Connection requires just the supplied accessory lead to be inserted between the rig and AT-180 and the supplied coax patch lead between the transceiver and the AT-180. The 12V DC supply is taken from the back of the transceiver via the accessory lead so no external 12V supply is needed.
This unit is dedicated for use with the Alinco DX-70 transceiver. It is supplied with the necessary connecting control cable for use with the DX-70. Its prime use is for operation as a mobile installation or other portable situation where random wire operation or the use of a whip is contemplated.
The FC-40 is a microprocessor controlled antenna tuner unit designed for the FT-897/857 series of transceivers. It makes use of the control circuitry built into the transceiver and allows control and automatic operation. The FC-40 is designed to match a wide variety of antennas to within 2:1 SWR on any amateur band (160m to 6m), typically in less than 10 seconds. Transmitting power required for matching may be as little as 4 - 60W, and matching settings are automatically stored in memory for instant recall, if the same frequency range is selected later. Mounted near to the antenna feedpoint, it is housed in a waterproof case capable of withstanding severe environmental conditions with high reliability. The FC-40 requires only two (supplied) interconnections to your FT-897/857.
The HC-100AT Super Tuner enables high speed matching over the frequency range of 1.8 to 54MHz for 1.5 to 100W transceivers. It utilises a newly developed operation algotithim for quick tuning, with possibly the highest speed level in the World. It has over 131,072 LC combinations to ensure the correct match for a range of antennas. An analogue type power meter is built-in for checking Power and VSWR.
Weatherproof auto ATU 1.8 to 29.7MHz for TS-450/690/850/870, will also work with TS-570DG.
Previously AT-300)
The MFJ-925 has been designed for today's compact home, portable or mobile ham stations.The MFJ-925 IntelliTunerTM specifically complements today's compact HF transceivers, such as the IC-706MKIIG, IC-7000, FT- 857D, DX-70TH and TS-50S. It can also be used as a stand-alone automatic antenna tuner for any transceiver that has an output power of 2 to 200W SSB/CW from 1.8 to 30MHz with antenna impedances from 6 to 1600 ohms. MFJ's exclusive InstantRecallTM, IntelliTuneTM and AdaptiveSearchTM algorithms gives you fast automatic tuning with more than 20,000 non-volatile Virtual AntennaTM Memories. The antenna has eight banks of memory, with over 2500 non-volatile memories for tuner settings. A maximum of 256 values of inductance and 256 values of capaitance are available. With the capacitance switched between the input and output side, this provides a total of 131,072 L/C tuning combinations. When you key your transmitter, MFJ's InstantRecallTM checks its memory to see if you have operated that frequency before. If so, then tuning is instantaneous and you're ready to operate. If not, MFJ's IntelliTuneTM algorithum kicks in. It measures the complex impedance of your antenna. Next it calculates the components it needs and instantly snaps them in. Finally, it fine-tunes to minimise SWR, and you are ready to operate - all in a fraction of a second.
Use the optional MFJ-911H, 1:1/4:1 external balun for balanced feedline.
Built-in radio interface circuitry for compatible radios, Alinco, Icom, Kenwood & Yaesu. Optional interface cables available. ACCESSORIES
Weather protected remote auto tuner for coac/wire antennas, includes MFJ-4116 Power Injector. (sends DC/RF down coax)
For remote operation requires Bias Tee (MFJ-4116).
The MFJ-993 supports radios such as the Icom HF series and Alinco HF series. Interface cable may be required.
Similar to MFJ-993B but handles 150W SSB, 100W CW. Does not have digital SWR/Wattmeter/LCD, aural SWR meter/audio feedback, antenna switch or 4:1 balun for balanced lines.
Similar to MFJ-993B but handles 600W SSB, 300W CW. Does not have digital SWR/Wattmeter/LCD, aural SWR meter/audio feedback, antenna switch or 4:1 balun for balanced lines. Tuning must be done at low transceiver power with the amplifier bypassed.
The MFJ-998 is the big brother in the IntelliTuner range from MFJ and handles 1.5kW SSB/CW. It features digital SWR/Wattmeter/LCD as well as an analogue cross needle SWR/Power meter. It automatically matches antennas within a frequency range of 1.8 to 30MHz. For balanced line antennas use the optional external MFJ-912 1.5kW 4:1 balun.
Cable fits MFJ-993 & DX-70/DX-77
Cable fits MFJ-993 & IC-706/718/746/7400/756
The MAC-200 antenna tuner from SGC offers a great way of controlling and feeding your ham radio antennas. Its a complete antenna control centre that is designed to stay in the shack, beside your transceiver.
The unit is powered from any 12 - 15V DC source that can produce around 250mA. The built-in forward and reflected power meter has a switchable range of 0 - 20W or 0 - 200W. The built-in memory can remember the settings for each antenna, and so returning to a previously used frequency and antenna, means tuning takes a fraction of a second. For new frequencies a typical time is 2 seconds. Antenna selection is by button press. Will handle almost any form of antenna; wire coax or balanced.
The QMS-37 is based on the successful SG-237 HF-VHF Smartuner. The Smartuner is factory fitted to a frame which has powerful suction pads, antenna connections and straps. The QMS-37 is placed onto either metal or glass location on the vehicle and strapped in position. The unit is particularly fitting for four-wheel type vehicles.
The SG-307 mobile antenna is the preferred antenna for this unit, with the relevant fitting for the antenna being an integral part of the QMS-37. High Voltage is present on antenna terminals. Avoid contact as RF burns may be the result.
The SG-211 MiniSmartuner is an intelligent system that is simple to use. Connect RF from your transceiver, connect your antenna and you are on the air! No power connections, no control cables, nothing external is necessary.
The SG-230 Smartuner is designed to tune and match any random length of wire from 2.4m to many tens of metres in the frequency range 1.6MHz to 30MHz. It is capable of handling up to 150W input from the transceiver. It is thus ideal for a wide range of commercial applications including marine and military use. It is also now widely used by radio hams around the world who need a simple system that is easy to use on a wide range of frequencies. Only four connections are required: transceiver input, antenna wire, earth connection and 13.6V DC. The SG-230 automatically selects one of half a million inductance/capacitance combinations to achieve a perfect match as soon as RF is fed to it.
The SG-235 a member of the Smartuner family of automatic ATUs, covers 1.8 to 30MHz with a power rating of 500W. This has the highest power rating in the series and is particularly useful with higher powered transceivers or with linears with power outputs up to 500W.
In common with other members of the Smartuner family, uses microprocessor control of a pi or L network to match virtually any load to any transceiver. The weatherproof design allows outdoor mounting, and gives the maximum possible multi-band performance from your antenna.
The SG-237 is the World’s smallest high performance Antenna Coupler. It is designed to match any whip, backstay, dipole, centre fed, loop or long wire antenna. Don’t think that because of its small size that it can’t handle more than a few watts. It’s capable of handling 100W (PEP) and 40W maximum on CW. It is ideal for radio amateur, commercial, marine and aviation applications. It can automatically match and remember 170 locations. Only four connections are required. The DC input requirement is 13.8V DC (nominal) 300mA, its DC operating range is 10.5 to 18V DC. The SG-237 with its microprocessor control automatically selects inductance/capacitance combinations to achieve a perfect match. The unit is fully waterproof and has been tested under 0.6m (2ft) of water over a 24 hour period. (OFFER ONLY AVAILABLE WHILST STOCKS LAST)
The specification is the same as the SG-237. The size of the PCB is incredibly small, but the engineers at SGC have based the design on their considerable knowledge of automatic antenna tuners and the smallest size that the components need to be in order to be efficient but not to break down.
The SG-237PORTA Smartuner designed for quick portable set-up or base operation. It is designed to match ladder feed or end fed antennas. The SG-237PORTA can be set up for temporary communications on a balcony or ground location, and is even small enough to be handheld. The power handling capability is 100W (PEP) and 40W maximum on CW. Its rugged internal constructionis ideal for tough operation. Only four connections are required. The DC input requirement is 13.8V DC (nominal) 300mA, its DC operating range is 10.5 to 18V DC. Any 2.7m (9ft) whip will provide good operations above 3.5MHz. For operation down to 1.8MHz it is recommended that at least a 8.5m (28ft) wire antenna or 6 x 6m (20 x 20ft) loop antenna be used. When using a whip antenna in a fixed location it is important that a ground system of radials be used.
The SG-230 Smartuner is designed to tune and match any random length of wire from 2.4m to many tens of metres in the frequency range 1.6MHz to 30MHz. It is capable of handling up to 150W input from the transceiver. It is thus ideal for a wide range of commercial applications including marine and military use. It is also now widely used by radio hams around the world who need a simple system that is easy to use on a wide range of frequencies. Only four connections are required: transceiver input, antenna wire, earth connection and 24V DC. The SG-230 automatically selects one of half a million inductance/capacitance combinations to achieve a perfect match as soon as RF is fed to it.
Visit our eBay shop for more bargains!eBay Click here to enter our Ebay shop
