Aeroflex 2946A Instructions d'exploitation télécharger pdf (Page 41)

LOCAL OPERATION

3-2 46882-311D

Contents

(continued)

Output level.....................................................................................................................3-71

Tone selection..................................................................................................................3-71

Tone frequency shift........................................................................................................3-71

DCS.......................................................................................................................................3-71

Overview.........................................................................................................................3-71

DCS receiver decoder testing...........................................................................................3-72

DCS transmitter encoder testing ......................................................................................3-73

DTMF....................................................................................................................................3-73

Overview.........................................................................................................................3-73

Tx test DTMF tones function...........................................................................................3-74

Rx test DTMF tones function...........................................................................................3-74

Dx test DTMF tones function...........................................................................................3-76

AF test DTMF tones function ..........................................................................................3-76

POCSAG................................................................................................................................3-76

Overview.........................................................................................................................3-76

Testing a radio pager .......................................................................................................3-78

Decoding POCSAG type signals......................................................................................3-79

Oscilloscope...........................................................................................................................3-80

Setting up ........................................................................................................................3-80

Expanded display.............................................................................................................3-81

Stores, settings/results ............................................................................................................3-82

Overview.........................................................................................................................3-82

STORE/RECALL............................................................................................................3-82

Storing ............................................................................................................................3-83

DISPLAY HOLD STORE................................................................................................3-83

Other memory functions ..................................................................................................3-83

Titling store locations ......................................................................................................3-84

Memory card..........................................................................................................................3-84

Formatting memory cards ................................................................................................3-84

Accessing the memory cards............................................................................................3-85

Write-protecting cards .....................................................................................................3-85

Coded store protection.....................................................................................................3-86

Storing on memory cards.................................................................................................3-87

Printing from memory cards ............................................................................................3-87

Error messages ................................................................................................................3-88

Real time clock. Date and time stamping ........................................................................3-88

Printer ....................................................................................................................................3-89

Parallel printer port option ...............................................................................................3-90

List of tables

Table 3-1 Parallel printer port connections ............................................................................3-90

Table 3-2 Rear accessory port connections.............................................................................3-91

List of figures

Fig. 3-1 Front panel..............................................................................................................3-4

Fig. 3-2 Typical displays.......................................................................................................3-5

Fig. 3-3 Rear panel layout, (with optional GPIB fitted) .........................................................3-8

Fig. 3-4 Transmitter test connections ..................................................................................3-18

Fig. 3-5 Tx power, harmonic analysis screen ......................................................................3-26

Fig. 3-6 Power Transient Analysis screen ...........................................................................3-27

Fig. 3-7 Transient Analysis displays ...................................................................................3-30

Fig. 3-8 Distortion level and signal to noise level measurements.........................................3-33

Fig. 3-9 Receiver test connections.......................................................................................3-37

Fig. 3-10 Selectivity test setup..............................................................................................3-47

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Aeroflex 2946A Instructions d'exploitation Page 41

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