10pcs SMA-M Antenna Retevis RHD-771 VHF UHF Dual Band Antenna For Retevis RT1 RT3S RT3  RT8 RT81 For TYT MD380 DMR Radio Accessories

Why Retevis showed the VSWR less than 1.5 on the advert, but I measure higher than 1.5?

1.The accuracy of the measuring instrument. The Retevis factory uses professional measuring equipment(very expensive than handheld devices), which is more accurate than ordinary handheld devices.

2.Each antenna has a center frequency point. At this frequency point, the VSWR value is the lowest and the use effect is the best. So try to measure around 144MHz/430MHz.

Description:

The Original Retevis RHD-771 Elite Antenna will allow you to get longer range on your handheld radio, like RETEVIS RT1/RT3S/RT3,For TYT MD-380/UV-8000D and more radio. This antenna features a 2.15dBi with up to 20 Watts of power. It is 36.5cm in length and weighs 36g.

Specification:

1. 100% brand new and high quality
   Model	RHD-771(SMA-M)
   Band	Dual band VHF/UHF
   Antenna type	SMA-M Soft Antenna
   Frequency	144/430Mhz(136-174+400-470)MHz
   Gain	2.15dBi
   Max power	20 Watts
   VSWR	Less than 1.5 Downwards
   Impedance	50ohm
   Connector Type	SMA-M(Male)
   Omni Polarization	Vertical
   Radiation	Omni
   Material	ABS and Heat shrinkable sleeve
   Length	36.5cm
   Weight	36g/1.27oz
   Color	Black
   Widely used on handheld Radios with SMA–M interface

   Applications model:

   for YAESU	VX-1R,VX-2R,VX-3R,VX-5R,VX-6R,VX-7R
   For RETEVIS	RT1,RT3S,RT3,RT8,RT81
   For TONGFA	TF-UV985,385
   For BAOFENG	BF- UV3R UV100 U3 etc
   For TYT/Tytera	TH-UV8R,UVF9,UVF9D,UVF8D,F8,F5,F3 F7,TH-F1,TC-3000A,UVF10,UV6R,UVF9,UVF11,UVF8,TC-3000B,TC-3000S,TC8000,UV8000D, MD-280,MD-380,MD-446,
   Other Brand radios suitable for SMA-M antenna