Active Magnetic Loop HA SDR Short Wave Low Noise Adjustable Gain Radio Loop Shortwave Active Loop

Dear customers and friends:

This product has been upgraded again, the circuit board has been optimized again, and the battery mount has been added, so the cable tie is no longer given. The circuit board you will receive is shown below:

Ordering guide:

Option 1 (No connecting cable): Loop , as shown in the figure, without connecting cable;Option 2 (With 3.5mm cable): loop + 5m 3.5 connector cable;Option 3 (With SMA cable): loop + 5m SMA connector cable;Option 4 (With BNC cable): Loop + 5m BNC connector cable;Option 5 (3.5mm silver plated): loop + 5m 3.5 connector silver plated cable;Option 6 (SMA silver plated): loop + 5m SMA connector silver plated cable;Option 7 (BNC silver plated): loop + 5m BNC connector silver plated cable.Use 50s and 1.5 cables.The line lo measured in the spectrum analyzer for the 15-meter black cable is about 3 to 4DB. The silver-plated connection wire test is about 2-3DB. It se that the line lo of the radio frequency wirele is very small, and the line of 5 meters length is basically negligible.The line lo advantage of the silver-plated cable is not obvious, but the toughne and firmne of the silver-plated cable are very obvious.

Cost-effective shortwave active loop .

Product Description:

The power supply line of the battery adopts perforation design, which is more firm and not easy to break the thread. There are lifting holes on the top and bottom, which is more convenient for both upside down and formal installation.Delivery list: a finished board, a stainle steel wire ring with a thickne of 2mm and a diameter of 60cm (the stainle steel wire has the advantages of high hardne and not easy to rust. The hardne of the stainle steel wire is too high, and the labor cost for making the ring is too high) . The power feeding effect is the same as wire and copper wire in the spectrum analyzer.The spectrum analyzer test has a gain of about 20DB for shortwave. The gain of the Tecsun S2000 test machine is above 80db. The uses a 14-jaw and a 9v square battery.This is suitable for players with external input ports, radios, receivers and SDR players, and is mainly used for shortwave.The spectrum analyzer has been tested before shipment, but because everyone’s listening envment is different, the quality and quantity of radio stations that can be listened to are different. The envment comes first, the comes second, and the radio equipment comes third!

Shipping list:

1. A finished board2. Loop x 1. (304 steel wire, steel wire Φ2.0mm, loop vibrator diameter Φ60cm)3.Plastic cable tie (used to fix the battery)

Note: This is not waterproof. The picture below is a photo taken during the trial on the rooftop.

The effect picture of double-sided adhesive hook hanging upside down on the window:

The power supply line adopts perforated design, which is more firm and not easy to break the thread.

The spectrum analyzer will be used for testing before shipment to ensure product quality.

A stainle steel wire ring with a thickne of 2mm and a diameter of 60cm.

About shipping
Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days ar buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties ores. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.