Manually Decoding Mpt 1327 Signals; Decoder Triggering - HP 8920A User Manual

Rf communications test set

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Chapter 8, Signaling Decoder Screen

MPT 1327 Decoder

Manually Decoding MPT 1327 Signals

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To manually test MPT 1327 radios using this decoder, you must first set up the

MPT 1327 Encoder to provide the necessary protocol to get the radio up on the

correct channel. This requires a thorough knowledge of the MPT 1327 Encoder

operation, including using the undisplayed controls accessed using IBASIC

For these reasons, the following information generally assumes you are operating

the decoder under IBASIC control.

For MPT 1327 signaling detection, the decoder should be configured for

repetitive retriggering using the HP-IB command:

TRIGger:MODE:RETRigger REPetitive

When the decoder is armed it is triggered whenever it receives the

synchronization sequence appropriate to the test mode (selected on the MPT 1327

Encoder screen). Refer to

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