Tait Confidential
Tait Electronics Ltd
Tel64-3-357-9991
TN-1013-AN
[email protected]
http://support.taitworld.com
Date of Print: 12/03/07
Page 8 of 9
5.6
Reciter 2: Configured as a Link Transmitter and Receiver
Configure the channel name, frequency, power and channel spacing as per
section 5.3 with the following change:
Set the Filter to Flat Speech Band.
Set up the default channel profile as follows (refer section 5.2):
1.
Enable Tx path A.
2.
Set the Balanced Line output level to –10 dBm.
3.
Enable Rx Path A.
4.
Set the Balanced line input level to –10 dBm.
5.
Disable Talk through Repeater
6.
On the Tone-On-Idle tab, ensure that Tone On Idle is disabled
(Balanced Line Output and Unbalanced Line Output unchecked).
6
Set up the T805 Remote Site Unit
This procedure assumes that the
LEM card has been adjusted to
provide the nominal level to line
at the control site (1 kHz tone).
1.
Adjust RV201 for a level of 98 mV
RMS
±
3 mV at “link I/P Testpoint” (pin
6 of J406).
2.
Set switch S303-7 to the OFF position.
3.
Key the TX
4.
Set RF test set filters to provide a 50 to 300 Hz BPF
5.
Adjust RV202 for the desired CTCSS deviation
±
5Hz.
6.
Set switch S303-7 to the ON position.
7.
Set switch S303-8 to the OFF position.
8.
Set RF test set filters to provide a 300 to 3000 Hz BPF
9.
Verify that deviation is 3.0 (1.5) kHz
±
0.2 (0.1) kHz
10.
If the site is required to operate as a “Talk Through” repeater in the
link fail condition:-
(A)
Feed a carrier modulated at the nominal system level into the
receiver of the base station at an RF level of –70 dBm.
(B)
Configure TR1 on the RSU for the desired timeout period (refer to
T805-26 manual)
(C)
Remove the link input connector from J414 (RJ11).
(D)
Allow timer TR1 to time out.
(E)
Adjust RV200 to achieve the same level of deviation as measured
in (9) above.
11.
Set switch S303-8 to the ON position.
12.
If Line Fail Talk Through is not required, set timer TR1 to zero (tr1,0)
7
Position and Layout of Equipment
During operation, the TB8100 base station can become hot. This is normal
since it is designed to operate at high temperatures. (The power amplifier
(PA) fan turns on when the PA temperature reaches 60° Celsius, this is
adjustable via Configure>Basestation>Fancontrol)
Consequently, any equipment placed directly above the TB8100 base
station will also become hot. It is therefore important that the layout and
position of equipment is carefully considered.
