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9.1.3.1 Plotting Ranges
Resistance: 0 to100, 200, 500, 1K, 2K ohms
Reactance: Same as resistance but +/- (+/-100 etc)
Total Z: Same as resistance
Z angle: +/-15, +/-45, +/-90 degrees
SWR: 1 to 3, 6, 11 (no units)
Return Loss: 0 to 20, 50, 90 dB
RC Magnitude: 0 to 0.2, 0.5, 1.0 (no units)
RC angle: +/-15, +/-45, +/-90, +/-180 degrees
Linear Gain: 0 to 0.2, 0.5, 1.0, 2.0 (no units)
Gain Angle: +/- 15, +/- 45, +/- 90, +/- 180 degrees
Log Gain: 0 to 20, 50, 90 dB
9.1.3.2 Graphing Formats
All graphs are X-Y format
Select one or two plot curves
Left axis plots with thin line
Right axis plots with hashed line
X axis is 81 or 101 points wide
9.1.3.3 Plotting Rate
Approximately 2 sweeps per second.
In CW mode, several updates per second.
9.1.4 Miscellaneous Specifications
9.1.4.1 Non Volatile Memory
24 total user definable memory slots.
Slots 1 to 16 store instrument preset values only.
Slots 17 to 24 store presets and plot data.
9.1.4.2 Serial Port
The serial port allows a PC or other terminal to control and read the Bravo MRI II
unit. Use of VIA-RTD Software is highly recommended. Connect Bravo MRI II to PC
with DB9F to 1/8 inch stereo plug serial port cable AEA PN 0070-1201.
9.1.4.2.1 Baud Rates
Baud Rate selectable: 4800, 9600, 19200, 28800, 57600
9.1.4.2.2 Data Format
Data type 8 bit, no parity, and 1 stop bit, with XON/XOFF handshake
9.1.4.2.3 Connector type
Serial input is a 1/8 inch stereo jack. Tip = RD (from Bravo MRI II to PC), Ring =
TD (from PC to Bravo MRI II), Common=ground