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S0239 Omni RF Loop On Ground Transformer for 50 Ohm receive only system
SKU Part Number: LOG-50-SO
Exclusive to Martin Lynch Tame your noise floor with the Loop On Ground dedicated receive antenna. 50 ohm  S0239 Marine-grade stainless...
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£82.96 £69.13
Availability: In stock
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Product Accessories

Exclusive to Martin Lynch

Tame your noise floor with the Loop On Ground dedicated receive antenna.

  • 50 ohm 
  • S0239
  • Marine-grade stainless steel components
  • Low visual impact and easy to install

Transformer only. Recommended for use with the Omni RF Loop On Ground Element (see Accessories below) or your own wire element.

Do you have a problem with a high noise floor on HF due to local interference? We did here at Omni RF HQ until I found the excellent Loop On Ground design by KK5JY which totally transformed the receive side of our station. The S9+10dB of noise on 80 meters vanished and was replaced by cleaner signals with an SNR improvement of between 3 to 6dB.

The Loop On Ground (LOG) antenna is made in its original design from a 15′ x 15′ square of wire laid on the ground, fed via an isolated ferrite transformer and connected to a receiver with coax cable. While testing, we found that the original 15′ x 15′ version works well on 30 meters and up and a larger version made from a 25′ x 25′ square works better on the lower bands like 40, 60, 80 and 160 meters.

This Omni RF version of the Loop On Ground Transformer uses a different core to the original design, which provides less loss and higher performance on the lower bands. We use genuine Fair-Rite cores wound with enamelled copper wire and a custom turn ratio that produces the best results after 6 months of testing. The enclosure is custom 3D printed in ASA, a high-quality ABS-type material with superior UV resistance, and comes with a galvanised steel ground peg for installation on soft ground.

All the nuts and bolts are marine-grade Stainless Steel with wing nuts for the loop connection to allow an easy install, and high-quality coax connectors are used on all versions.

The internal PCB has several additional jumpers to allow for simple future expansion with our add-on boards, such as the Active Pre-amplifier (coming soon), AM Broadcast Band Filter (coming soon) or the Experimenter Board (coming soon). We also apply a solderable conformal coating to the PCB to help protect the components from the elements while still allowing for easy repair or modification.

Supplied in 100% compostable and environmentally friendly retail packaging containing:

  • Loop On Ground Transformer (Version indicated on packaging)
  • Ground peg
  • Instructions

Please note that all products are handmade.

 

Shipping:

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

Returns:

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. Large items cannot be returned if they have been assembled, unless faulty.

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]