規格與說明:

The Joymax GHX-328XSA3B antenna is a whip-style, straight angle monopole antenna for sub-1 GHz 868 MHz 915 MHz and low-power, wide-area (LPWA) applications including LoRaWAN®, Sigfox®, Weightless-P, WiFi HaLow and other unlicensed ISM bands in the 862 MHz to 930 MHz range.
 
The antenna attaches with an SMA Plug (male pin) connector.

Electrical Data ( measured with a 120mm x 120mm reference ground plane)
Frequency (MHz)	VSWR (Max)	Peak Gain (dBi)	Efficiency (%)
868	1.6	2.7	78
915	1.7	2.7	9
Polarization		Linear
Wavelength		¼
Electrical Type		Monopole
Radiation Pattern		Omnidirectional
Impedance (Ohms)		50

Mechanical Data
Mounting Type	Connector Mount
Termination	SMA Plug
Dimension	46 mm (Straight) x ⌀11 mm
Op. Temp	-30˚C to +70˚C