Wavetek 147 Specifikace stáhnout pdf (Strana 91)

Field Sweeping with the SDA-5000: Sweep Receiver Configuration

SWEEP Menu Options

• Sweep Mode: Use the up and down diamond keys to select Stealth,

Stealth (SDA COMPATIBLE), Transmit, Transmit (SDA COMPATIBLE),

Loopback, or Sweepless. Table 4-1 lists the range of choices in each

mode for each of the SDA options.

• Sweep Limit Variable: The Sweep Limit Variable is x in the response

flatness expression (n/10 + x) used during sweep measurements to

compare actual system response to the formula. x is adjustable from 0.0

to 5.0 (the default is 1.0). Use the up and down diamond keys or the

numeric keypad to enter a value.

• Show Horizontal Markers: The horizontal markers continuously track

maximum and minimum values in the area of the graph between the

vertical markers (see Fig. 4-10). Use the up and down diamond keys to

display the markers.

• Forward Telemetry Frequency: Use the up and down diamond keys or

the numeric keypad to enter the forward telemetry frequency

corresponding to the SDA-5500.

NOTE: For successful Stealth mode operation, the SDA-

5000 telemetry frequency must match the transmit

telemetry frequency setting of the SDA-5500 transmitter.

CAUTION ! Do not place the telemetry signal too close to

the diplex filter cut-off frequency. Roll-off may attenuate the

telemetry signal to the degree that communication fails.

This same caution applies to placing the signal in the high-

end roll-off region.

• Forward Telemetry Frequency: Use the up and down diamond keys or

the numeric keypad to enter the forward telemetry frequency

corresponding to the SDA-5510.

NOTE: For successful operation, the SDA-5000 telemetry

frequency must match the forward telemetry frequency

setting of the SDA-5510.

CAUTION ! To prevent the SDA-5510 reverse sweep from

contending with the SDA-5500, disable the SDA-5500’s

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Wavetek 147 Specifikace Strana 91