O P E R A T I O N
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0
PAGE 5-15
Use this option with care as programming a mobile with incorrect firmware
may leave it in an unusable or unusable state.
First connect the programming lead to one of your PC’s serial ports. You may use
COM1 or COM2.
On the programmer’s
General
page select the COM port that you want to use.
Connect the other end of the programming lead into the mobile’s microphone socket,
then switch on the mobile. The mobile shows that it is in programming mode by
displaying
Pr
.
N.B.
If the mobile does not already contain valid firmware then the display may show
odd symbols, rather than
Pr
. This will not prevent you from programming new
firmware; just continue as if
Pr
was displayed.
Select
Program mobile | Firmware
from the main menu.
A file “Open” window appears. Firmware files are in Intel hex format, and will have a
.i00
extension. Select the required file then click
Open
.
The progress of the programming operation is displayed on the status line at the
bottom of the programmer window. When programming is complete, switch off the
mobile and disconnect the programming lead.
5.9 Test Mode
Test mode is used to adjust the mobile’s transmitted power output. The range of
adjustment is typically from six to twelve watts, although this may vary from mobile to
mobile.
To enter test mode switch on the mobile by pressing the power button. Without
releasing the power key, press first the SQL button, then the SCN button, and finally
the PRI. Then release the power button. The mobile displays “tESt” to indicate that
it is in test mode. After a few seconds the display changes to show the current power
level setting.
In test mode the mobile may operate on one of three predefined frequencies, i.e.
118MHz, 127.5Mhz or 136.975MHz. Use the SQL button to select one of these
frequencies for operation at 25kHz bandwidth. Use the PRI button to select one of
these frequencies for operation at 8.33kHz bandwidth. The select frequency is
displayed in ICAO format. It is recommended that the output power is adjusted at
127.5Mhz, selected with the SQL button.
Transmit and receive operation in test mode is similar to normal operation, except
that squelch is always off in test mode. The volume keys may be used to adjust the
volume of received signals. The SCN key has no purpose in test mode.
Adjust the transmitted power level with the CH and SEL keys. The CH keys alter the
setting one step at a time, whilst the SEL keys change it in steps of ten. The range of
adjustment is from 1 to 240 inclusive.
Alter the power level setting whilst the mobile is receiving, then press the microphone
PTT button to observe the result. The mobile should be adjusted to achieve 8 watts
