$12.99 – Center frequency: 5.8 GHz, Radiation efficiency: 75%, Axial ratio: 1.05(0.38dB), Antenna gain: 14.4 dBi, Matching: S11 < -30 dB / VSWR < 1.065, Half power beam width: 30° (horizontal and vertical), Bandwidth: 660 MHz (5.47 – 6.13 GHz).
Right now the best price with coupon code for 150mm Triple Feed Patch 5.8GHz 14dBi FPV Antenna is $12.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($12.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. What about the price? I have never seen better price than the current one in CouponsFromChina database, so it’s the best!
Link: Banggood product page
Price: $12.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): Parts8, BGJON8, BGRCParts8, Tabby20, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGRCT10, BGf610c0, BGJUNEGSG9, BG8ReviTrage, Cuponation9, BGToys8
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
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Price history and price alert
Check out price history chart (for all/most countries) for 150mm Triple Feed Patch 5.8GHz 14dBi FPV Antenna. The lowest price was: $12.99.
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)).