Network Router User Manual

GPS (Option 0031), (Models MS2036/38C only) Requires external GPS antenna

Built-in GPS provides location information (latitude, longitude, altitude) and Universal Time (UT) information for storage

along with trace data so you can later verify that measurements were taken at the right location. The GPS option requires a

separately ordered magnet mount GPS antenna (2000-1528-R), which is configured with a 15 foot (~5 m) cable to mount

outside on a metallic surface. Frequency accuracy is enhanced for the Spectrum Analyzer when Options 0025 Interference

Analyzer and 0027 Channel Scanner are engaged.

Setup

On/Off, Antenna Voltage 3.3/5.0 V, GPS Info

GPS Time/Location Indicator

Time, Latitude, Longitude and Altitude on display

Time, Latitude, Longitude and Altitude with trace storage

High Frequency Accuracy

Spectrum Analyzer, Interference Analyzer, CW Signal Generator when GPS Antenna is connected < ± 50 ppb with GPS On, 3 minutes after

satellite lock in selected mode

GPS Lock – after antenna is disconnected

< ± 50 ppb for 3 days, 0 °C to 50 °C ambient temperature

Connector

SMA, female

Balanced/Differential S-Parameters, 1-port (Option 0077)

As an alternative to a sampling oscilloscope, verifying the performance and identifying discontinuities in high-data-rate

differential cables is now possible with the VNA Master. After a full two-port calibration, connect your differential cable

directly to the two test ports and reveal the S

performance, which is essentially differential return loss, or any of the other

differential S-Parameters, S

, S

, or S

. With optional time domain, you can convert frequency sweeps to distance. This

capability is especially valuable for applications in high data rate cables where balanced data formats are used to isolate noise

and interference.

Distance Domain (Option 0501) (included in Time Domain Option 0002)

Distance Domain Analysis is a powerful field test tool to analyze cables for faults, including minor discontinuities that may

occur due to a loose connection, corrosion, or other aging effects. By using Frequency Domain Reflectometry (FDR), the

VNA Master exploits a user-specified band of full power operational frequencies (instead of DC pulses from TDR approaches) to

more precisely identify cable discontinuities. The VNA Master converts S-parameters from frequency domain into distance

domain on the horizontal display axis, using a mathematical computation called Inverse Fourier Transform. Connect a

reflection at the opposite end of the cable and the discontinuities appear versus distance to reveal any potential maintenance

issues. When access to both ends of the cable is convenient, a similar distance domain analysis is available on transmission

measurements.

Option 0501 Distance Domain will improve your productivity with displays of the cable in terms of discontinuities versus

distance. This readout can then be compared against previous measurements (from stored data) to determine whether any

degradations have occurred since installation (or the last maintenance activity). More importantly, you will know precisely

where to go to fix the problem and so minimize or prevent downtime of the system.