SKU Part Number: MFJ-1788X
***All Loops sold by ML&S are the very latest versions from the MFJ Factory. We still rework them but after MFJ incorporated some of our...
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£889.99 £741.66
Availability: In stock

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***All Loops sold by ML&S are the very latest versions from the MFJ Factory. We still rework them but after MFJ incorporated some of our engineering reports into the new versions, we continue to QA each and every loop sold... AND YES WE ARE STILL OFFERING THE REBUILD AND QC CHECK FOR YOUR PEACE OF MIND ***

“No other dealer rebuilds the MFJ Loops to the standard set by ML&S. They just keep on working straight out of the box”

Did you know?: 
Each and EVERY MFJ-1786X (and 1788X) is partially stripped, re-built and modified before shipping? Why? Because after selling hundreds of these antennas into the market place we took feedback from our customers and addressed the issues reported, improving & enhancing the design. Our engineers complete the following modifications before we dispatch this product:

1.       Visually inspect box and internal packaging for signs of damage.

2.       Remove both antenna unit & control unit from box.

3.       Open top of antenna unit – to expose tuning capacitor & drive motor.

4.       Check tightness of main capacitor shaft.

5.       Check alignment of capacitor vanes.

6.       Check alignment between main shaft & motor spindle.

7.       Check tightness of coupling between main shaft & motor spindle.

8.       Check wiring connections to drive motor.

9.       Check rotational operation of capacitor (end-stop to end-stop).

10.   Check slow-motion speed of capacitor, and adjust if necessary.

11.   Re-assemble unit & repackage.

12.   Ensure UK style mains plug fitted if required.

MFJs tiny 36 inch diameter loop antenna lets you operate 15 through 40 Meters (7 - 22MHz) continuously -- including the WARC bands!

Ideal for limited space -- apartments, small lots, motor homes, attics, or mobile homes.

Enjoy both DX and local contacts mounted vertically. Get both low angle radiation for excellent DX and high angle radiation for local, close-in contacts. Handles 150 Watts.

Super easy-to-use! Only MFJs super remote control has Auto Band Selection. It auto-tunes to desired band, then beeps to let you know. No control cable is needed.

Fast/Slow tune buttons and built-in two range Cross-Needle SWR/Wattmeter lets you quickly tune to your exact frequency.

All welded construction, no mechanical joints, welded butterfly capacitor with no rotating contacts, large 1.050 inch diameter round radiator -- not a lossy thing flat - strip -- gives you highest possible efficiency.

Each plate in MFJs tuning capacitor is welded for low loss and polished to prevent high voltage arcing, welded to the radiator, has nylon bearing, anti-backlash mechanism, limit switches, continuous no-step DC motor -- gives smooth precision tuning.

Heavy duty thick ABS plastic housing has ultraviolet inhibitor protection.

PDF Manual

  • 7 - 22MHz (40 - 15m)
  • Size:
  • Feeder: 50 Ohms
  • Power: 150W
  • Remote control included
  • Auto band selection
  • Dual Fast/Slow tune buttons
  • Built-in cross-needle VSWR/Wattmeter
  • Connector:  SO239 (for PL-259)


We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.


If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

Click here for returns form

Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]