Wavetek 3HRV Especificações descarregar pdf (Página 14)

2-2

The transmitter output level is variable from +20 to +50 dBmV in 2

dB increments. The output level will be attenuated by the tap value

of the directional coupler. For example, if a telemetry signal level of

+16 dBmV is desired on the system and the output of the 3HRV is

set to +36 dBmV, a directional coupler value of 20 dB may be used,

or the combination of a lower value directional coupler and an

attenuator pad.

An alternate method would be to insert the 3ST Transmitter output

at one of the combining network inputs, and connect the (transmit-

ter) reference input to the headend amplifier input test point. This

method eliminates the need to add directional couplers at the

combiner output.

Note: A diplex filter must be used to couple the foward path to the

input of the 3HRV for all measurement mode operations other

than reverse sweeping.

For detailed setup information, see "Stealth Sweep Start-up Proce-

dure", page 4-1.

2.4 WARRANTY INFORMATION

The 3HRV is covered by a one year parts and labor warranty (for

details, see "Warranty", opposite Table of Contents).

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Wavetek 3HRV Especificações Página 14