TB9400/TN9275 Installation and Operation Appendix E Testing with the TBA0STU Calibration Test Unit 143
© Tait International Limited May 2023
Note 2
The noise source in the reciter itself should be used for receiver tuning and
sensitivity measurements. See Receiver test at the bottom of the Diagnose
> RF interface > Receiver tab WebUI page.
A signal level graph that can be used to tune the receiver with the reciter
built-in noise source can be accessed from the Diagnose > RF interface >
Signal level tab, check the calibrated noise source check box.
Note 3 The antenna relay is supported by P25 version 2.60 (and later) and DMR
version 3.20.01 (and later) base station firmware.
TaskBuilder can operate this output as Digital output 13 in version 3.25
(and later) base station firmware.
Connecting the CTU to the Reciter DB25 System Interface
Use the DB25 ribbon cable to connect the DB25 system interface
connector,
1! on the CTU, to the system interface connector on the back of
the reciter.
Connect the power input to the PMU auxiliary output if required.
Connecting the CTU to the RJ45 from a TBC101A E&M Isolation Adaptor
Connect the power input of the CTU to the PMU auxiliary output.
Connect the RJ45 patch cable to the E&M isolation adaptor and the RJ45
connector on the CTU
1).
The CTU is compatible with the TB9100 and TN9110 network gateway
configuration on page 14 of the Base Station E&M Isolation Adapter
document (TD-0052-xx).
The CTU needs to be powered externally from a 12V to 32V supply for the
E&M key switch
1( to work.
The RX gate output and LED
2! will light when the RX gate is open.
To Next Page
Loading...
Need help?
General
