The Siglent SHA850-F2 Frequency Upgrade license option allows the SHA851A to be upgraded to teh SHA852A ( 3.6GHz to 7.5GHz upgrade )

The Siglent SHA850-SOR ia a 100 kHz~3.6/ 7.5 GHz independent source license option for the SHA850A spectrum analyzer series.

The Siglent SHA850-VNA is a 100 kHz-3.6/7.5 GHz vector network analyzer, vector S11 and S21 measurement (SW) for the SHA850A series spectrum analyzer series.

The Siglent SHA850-AMK is a license to enable Advanced Measurement Kit option for the SHA850A series spectrum analyser series. 

The Siglent SHA850-AMA is a license that enables the Analog Modulation Analysis option for the SHA850A spectrum analyser series. 

The Siglent SHA850-DMA is a Digital Modulation Analysis license option for the SHA850A series spectrum analyzer.

the Siglent SHA850-BIAS is the DC Bias Out 12V-32V license option for the SHA850A spectrum analyzer series.

The Siglent SHA850-GPS license option enbales the SHA850A spectrum analyzer series to receive GPS location data. You need a GPS antenna for this option also.

The Siglent SHA850-MAP is the Indoor and outdoor map license option for the SHA850A series spectrum analyser.

The Siglent 10V8_BAT is a spare battery for the SHA850A spectrum analyzer series.

The Siglent SHA800-AP ia a 12V_AP_4A AC-DC adapter for the SHA850A series.

Siglent ANT-GPS1 GPS antenna for the SHA and SHN units with a 100CM Cable and SMA(M) connector

The Siglent ANT-DA1 is a Directional Antenna Suit with 3 antennas and a Amplifier handle.

The Siglent ANT-DA11 is a 10MHz ~ 200MHz antenna and comes with the amplifier handle.

The Siglent ANT-DA11 is a 200MHz ~ 500MHz antenna and comes with the amplifier handle.

The Siglent ANT-DA13 is a 500MHz ~ 8GHz antenna and comes with the amplifier handle.