$14.99 – that is current price with coupon for Donut Loop Broadband Antenna 10kHz-180MHz (in Banggood). Just check coupons out (with price alert and history). What is best price?
Donut Loop Broadband Antenna Frequency Range 10kHz-180MHz with Low Impedance Converter
Latest price update (UTC time):
Banggood ($14.99)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? But wait a sec… Is it a good price? Pretty sweet, this is the lowest price I have ever noted for this product!
Link: Banggood product page
Price: $14.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Donut Loop Broadband Antenna 10kHz-180MHz? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).