When ACOM 04AT or 06AT tuner is assigned, BAND buttons are called SEGMENT and change
the tuner frequency segments (see Section 4.3 Operation with an External Antenna Tuner).
2) MENU button
The right-most button MENU provides access to the amplifier's settings and service functions.
Please, see Figure 3-2 | Basic screen), Pos. (2).
• 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
When the ACOM 700S is powered off, there is a bypass from RF INPUT to RF OUTPUT.
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 mains rocker switch on the rear panel must be
turned off. In any case the LED above the POWER button on the front panel must be dark for this test.
First, check if the transceiver's reception is normal in some band that should be "open" at the time of test.
Be sure to connect to the amplifier output an antenna having good SWR in the band being tested. If you
observe a significant worsening of reception, first check for a problem in the coaxial connections to the
amplifier (see Sections 2.4.d) RF INPUT connector and 2.4.e) RF OUTPUT connector).
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.
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