MT-4E Analog and P25 Digital Radio Systems - Daniels Electronics
MT-4E Analog and P25 Digital Radio Systems - Daniels Electronics
MT-4E Analog and P25 Digital Radio Systems - Daniels Electronics
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TEST PORT<br />
SCOPE<br />
100V MAX 100V MAX 100V MAX<br />
CH1<br />
CH2<br />
DVM<br />
MIC<br />
HELP<br />
RETURN<br />
AUDIO I/O<br />
MODE<br />
TAB<br />
SHIFT<br />
BKSP<br />
HOLD<br />
GHI<br />
4<br />
PQRS<br />
7<br />
*<br />
JKL<br />
5<br />
TUV<br />
8<br />
0<br />
MNO<br />
6<br />
WXYZ<br />
9<br />
ESC ENTER POWER<br />
#<br />
125 W MAX<br />
VOLUME<br />
SQUELCH<br />
FREQUENCY (MHz)<br />
SWITCH A SWITCH B<br />
A D<br />
15 3 15 3<br />
13<br />
5<br />
11 7 11 7<br />
KEY TX<br />
9<br />
9<br />
MICMODE<br />
CI-RC-4L<br />
TX A<br />
RX A<br />
TX B<br />
RX B<br />
PULL DOWN<br />
TO REMOVE<br />
USB<br />
MIC<br />
DANIELS<br />
ELECTRONICS LTD.<br />
MADE IN CANADA<br />
MODEL # CODE<br />
RF OUT<br />
USB<br />
A<br />
D<br />
FREQUENCY (MHz)<br />
SQ. DISABLE<br />
NORM<br />
OFF<br />
RF<br />
DANIELS<br />
ELECTRONICS LTD.<br />
MADE IN CANADA<br />
MODEL # CODE<br />
IN<br />
FUNCTION<br />
12<br />
1<br />
11<br />
2<br />
10<br />
3<br />
9<br />
4<br />
8<br />
5<br />
7 6<br />
+<br />
VOL METER<br />
-<br />
EXT<br />
SPKR<br />
DANIELS<br />
ELECTRONICS LTD.<br />
MADE IN CANADA<br />
OFF<br />
Chapter 5: <strong>Daniels</strong> <strong>Radio</strong> System Testing 51<br />
SYSTEM TESTING<br />
Duplex <strong>Analog</strong> Testing<br />
Connect the IFR 2975 <strong>and</strong> <strong>Daniels</strong> <strong>Radio</strong> as shown in Figure 5-39:<br />
Computer running RSS<br />
<strong>Daniels</strong> RJ45 cables<br />
on front panel<br />
ABC<br />
1 2<br />
3<br />
DEF<br />
+<br />
-<br />
REPEATER<br />
CONTROL<br />
TRANSMITTER<br />
RECEIVER<br />
SYSTEM REGULATOR<br />
.<br />
GEN T/R ANT<br />
REF<br />
IN<br />
CNTL<br />
BUS<br />
NORM<br />
OFF<br />
ANALOG<br />
DIGITAL<br />
CNTL<br />
BUS<br />
REF<br />
IN<br />
To Tx<br />
or Rx<br />
ON<br />
OFF<br />
SPKR<br />
INT<br />
EXT<br />
POWER<br />
ON<br />
USB from<br />
Computer to Rx or Tx<br />
Tx RF OUT to T/R port on IFR 2975<br />
Figure 5-39: System Duplex <strong>Analog</strong> Testing<br />
GEN port from IFR 2975 to RF IN on Rx<br />
On the IFR 2975, recall <strong>Daniels</strong> setup 11 (Dup_Ana) from your internal drive as shown in Figure 5-40.<br />
Enter the correct RF frequencies for the receiver <strong>and</strong> transmitter <strong>and</strong> ensure that the deviation level<br />
of the 1.0 KHz tone is set correctly for your receiver (wide / narrow). Enter the correct CTCSS tone (if<br />
used) <strong>and</strong> deviation level for the tone. Set the receiver <strong>and</strong> transmitter front panel switch to NORM.<br />
The MIC MODE switch on the transmitter front panel can be set to either <strong>Digital</strong> or <strong>Analog</strong> (this test<br />
does not make use of the front panel switch).<br />
MG-001 <strong>Daniels</strong> <strong>MT</strong>-<strong>4E</strong> <strong>Radio</strong> <strong>Systems</strong><br />
www.danelec.com<br />
Maintenance<br />
Guide
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