The VNA-3B is a precision, handheld return loss/SWR, transmition gain/loss and phase match measurement instrument. It provide characterization of devices such as amplifiers , antennas , attenuators , adapters , cables , mixers ,  receivers , transceiver , down converters , power dividers , diplexers and filters. 
SNA-1 is designed for field requirements.  Battery power , light weight , small size , and simple user interface are exactly what field technicians want today.

Features:

• Microprocessor control
• Memory for 30 adjustments
• Variable Span up to 1300Mhz
• Transmition gain(loss) S21
  
• Return loss(or SWR) S11
  
• Phase match measurement
  
• Build in accumulators

Specification:

Frequency range	1 - 1300 MHz, 800 - 2700 MHz, 3 - 4GHz or 5 - 6 GHz
Frequency resolution	1 kHz
Input impedance	50 Ohm / (75 Ohm)
Amplitude accuracy	0,1 dB
On-screen dynamic range	80 dB
Connectors	Type N / SMA female
Battery autonomy	4h
Power supply:	Li OH battery  – 12V External  15 V DC / 1 A
Dimensions:	220 х 133 х 56 mm