Acom 700S, Руководство пользователя, Страница: 23 / 52

User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier
May 2021 S e c t i o n FIRST POWER-ON, CONTROL SYSTEM, AND INITIAL CHECK | Page 23 of 52
h) CAT interface information
When CAT is deactivated, this field is shaded.
i) REMOTE CONTROL information field - flashing represents RS-232 port dataflow.
3.5.
Control System - Buttons and Menus
1) The OPR/STB and the BAND buttons are used for manual (local) control (see
Figure 3-2 Basic
screen
):
•
The left-most button OPR/STB switches over the amplifier between Operate and
Stand-by modes;
•
The next two buttons - BAND up and down arrows change the frequency bands in
ascending or descending order.
2) The right-most button MENU (see
Figure 3-2 Basic screen)
provides access to the amplifier's
settings and service functions:
•
In each menu the left-most button is always HELP and the right-most - always EXIT;
•
The HELP button provides information about the active screen.
For more details of the control system and use of the menus see Section
5 MENUS - SETTINGS AND OPTIONS
.
3.6.
Test transmission
To make sure that you have installed the amplifier correctly, make a test transmission as described below.
Repeat these tests for each new band and antenna, as well as after installing a new or modified antenna,
antenna switch, tuner, and/or connecting cables.
a) Check of RF bypass path of a non-driven amplifier
For this check the amplifier must be completely installed and connected according to Section
2 INSTALLATION
, but not powered by the mains, i.e. the POWER ON switch on the rear panel must be turned
off. In any case the LED above the POWER button must be dark for this test.
First, check if the transceiver's reception is normal. If you observe a significant worsening of reception, first
check for a problem in the coaxial connections to the amplifier (see Sections
2.3.d) RF INPUT
and
2.3.e) RF
OUTPUT
). Be sure to connect to the amplifier output an antenna having good SWR in the band being tested.
Provided the reception is normal, prepare the transceiver as follows:
•
Select a continuous carrier mode (CW, RTTY, FM);
•
Switch the microphone off (decrease the mic gain), disable FSK;
•
Reduce the output power control to a minimum;
•
Select a suitable indication so that you can watch the RF power and SWR at the transceiver output;
•
If the transceiver has a built-in antenna tuner - switch it off.