MM-010019-001, Rev. B
56
3.
Toggle the
Ramp Control
until
OTP
(or
M: NM
for mode = normal) appears in the top line of the
display.
4.
Confirm the OTP selection by pressing the
MENU
button, then toggling the
Ramp Control
once (to
select
Y
for Yes), followed by pressing the
MENU
button again. The radio will reboot and enter OTP
mode as indicated by the display.
16.2 REQUIRED TEST EQUIPMENT
Table 16-1: Required Test Equipment
TEST EQUIPMENT
MODEL / PART NUMBER & DESCRIPTION
Peak Power
Wattmeter
•
Bird Electronic Corp. Model 4314B (or equivalent) with N-type female
connectors at input and output ports.
Wattmeter
Slug
•
Bird Electronic Corp. Element 25E, 25 watts, 400 - 1000 MHz (or
equivalent).
RF Coaxial
Jumper Cable
•
Pasternack Enterprises PE3661-36 (or equivalent) 50-Ohm Coaxial Cable
with TNC-type male connector and N-type male connector,
approximately three (3) feet in length.
The utilized cable
must
have VSWR below 1.5:1 within the RF passband.
N-Type to TNC
RF Adapter
•
Pasternack Enterprises PE9090 (or equivalent) N-type male to TNC-type
female adapter. Required to connect the cable of the vehicle-mounted
700/800 MHz antenna to the wattmeter.
50-Ohm RF
Terminator
(“Dummy Load”)
•
Pasternack Enterprises PE6106 (or equivalent) 50-ohm RF terminator
rated at greater than 50 watts power, with N-type male connector.
Vehicle-Mounted
Antenna
Tests are performed with the vehicle-mounted 700/800 MHz antenna per the
installation described in Section 7 of this manual.
16.3 TRANSMITTING INTO A DUMMY LOAD
1.
Using the N-type male to TNC-type male RF coaxial jumper cable, connect the radio’s antenna
connector to the wattmeter’s input connector. Refer to Figure 16-1 as necessary.
2.
Connect the 50-ohm dummy load to the wattmeter’s output connector, in place of the antenna cable
from the vehicle-mounted 700/800 MHz antenna.
A peak-power reading RF wattmeter equivalent to the wattmeter specified in Table
16-1 must be used. Do
not
use an average or RMS-responding wattmeter.
3.
If not already, turn the radio on and set it to the OTP mode. Refer to Section 16.1 as necessary.
4.
Set the radio to a test talk group, if available.
