Screens
HSCSD screen
Limits (GSM900) | 1 thru 124 |
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Limits | 0 thru 124; 995 thru 1024 |
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Limits (DCS1800) | 512 thru 885 |
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Limits (PCS1900) | 512 thru 810 |
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Default (GSM900) | 30 |
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Default | 30 |
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Default (DCS1800) | 512 |
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Default (PCS1900) | 512 |
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The Master Channel field shows the ARFCN of the TCH. There is only one ARFCN, as HSCSD systems place all timeslots on the same ARFCN.
On a slave unit, setting this field changes the ARFCN of the downlink
TCH and analyzer appropriately.
On a master unit, this field sets the TCH ARFCN of the current call, or the TCH ARFCN to be used for the next call. An assignment command is sent to the mobile on the downlink FACCH.
If you try to change the ARFCN but the measurement timeslot (see page
32)is set to Slave, an error occurs and the setting is ignored. Without this error, the acknowledgment from the mobile would be missed if the HP/Agilent 8922 is analyzing the slave timeslot. The error reported is
Select ‘Master’ to measure before signalling mobile.
The value of this field is always the same as the TCH ARFCN on the Cell Status screen.
NOTE | The default is reset when the instrument type (see page 24) is selected. |
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Chapter 4 | 29 |