General Test Preparations - Wavetek IS-136 MS Operating Instructions Manual

General Test Preparations

General Test Preparations
The following entries in the basic IS-136 mask (Fig. 10. next page5) are neces-
sary for correct setup of a call between the mobile and the test setup. These
entries are thus a general requirement for performing all tests. Here they will be
looked at separately, but in the individual test procedures they are simply
mentioned.
❶
Home system number of the mobile. Any number can be entered (if the
home system number differs from that stored in the mobile, the ROAM
display on the mobile will flash).
—
Mobile identification number MIN or International mobile station iden-
tity IMSI. If the number is not known, perform "Call from mobile" as the
first test. The correct identification number (transmitted by the mobile) will
then be entered automatically in the MIN field (the originally wrong MIN
triggers the message Wrong Ident). Then repeat the call setup.
❸
Forward control channel FOCC or Digital control channel DCCH. This
must be a channel number actually used by the mobile (eg system A:
0333, system B: 0334), otherwise there will be no call setup. Is DCCH
selected, you can here select between the 800 MHz and the 1900 MHz
RF band.
❹
Changed between DCCH Full Rate and DCCH Half Rate. (Only if at ❸
DCCH is selected.)
❺
With this scroll field you choose the type of traffic channel, ie whether
call setup is to lead to an analog or digital traffic channel (scroll variables:
To analog TC, To digital TC (VSELP) and To digital TC
(ACELP) ). The digital traffic channel is splitted into ACELP and VSELP
speech coding. Set To analog TC to test an (E)AMPS mobile, other-
wise there will be no call setup.
IS-136 MS
10
10-9