Specifications

ManualsBrandsMDS ManualsConsumer electronicsMDS 4710 Series

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 65

NOTE: Changing the transmitter’s operating frequency may result in degraded or

out-of-specification performance. Please review Section 8.4, Operating

Frequency Change Considerations, beginning on Page 85 before making a

change.

Receive

Frequency

This screen is used to display or set the receive frequency.

Normally, the radio will be shipped programmed with the customer-speciﬁed

frequency. If the operating frequency was not speciﬁed when the radio was

ordered, the RX frequency is set to the center of the radio’s operating band. The

range of frequencies for standard models are given Section 10.1, Technical

Speciﬁcations, beginning on Page 93.

To change the current frequency, press ENTER, then use the left/right arrow

buttons to select a digit. Then use the up/down arrow buttons to increase or

decrease the number. Press ENTER to make the change.

NOTE: Changing the receiver’s operating frequency may result in degraded or

out-of-specification performance. Please review Section 8.4, Operating

Frequency Change Considerations, beginning on Page 85 before making a

change.

NOTE:Output

Power Setting

[37-20]

This screen is used to set or display the transmit power output setting. Power

output may be set from +37 dBm to +20 dBm.

To change this value, press ENTER, then use the left/right arrow buttons to select

a digit. Then use the up/down arrow buttons to increase or decrease the number.

Refer to Table 17 to convert dBm to watts if necessary. Press ENTER to make the

change.

Modem This screen is used to set or display the internal modem speed for compatibility

with the modem in the central host computer.

To change the modem speed, press ENTER, then use the up/down arrow buttons

to display available modem speeds. Press ENTER to make the change.

Review the Receive Level parameter on Page 71 and Transmit Gain parameter on

Page 71 for guidance on setting appropriate levels.

RX [xxx] command, Page 49

Table 17. dBm Vs. Watts

dBm Watts dBm Watts

+37 dBm 5.0 watts +27 dBm 500 milliwatts

+35 dBm 3.2 watts +25 dBm 320 milliwatts

+33 dBm 2.0 watts +23 dBm 200 milliwatts

+31 dBm 1.25 watts +20 dBm 100 milliwatts

+29 dBm 800 milliwatts

PWR [20–37] command,

Page 47

MODEM

[NONE/4800/9600/19200/

DEFAULT] command,