User's Manual | ACOM 2S1 | Automatic XCVR Commutator
June 2022
S e c t i o n INITIAL CHECK AND OPERATION | Page 19 of 32
3.
INITIAL CHECK AND OPERATION
NOTICE
Do not try transmitting until all the system is properly connected to the ACOM 2S1
commutator according to Section
Figure 3-1 | Front panel - Indicators
Figure 3-1 | Front panel- Indicators
The operation of the commutator is fully automatic. But we recommend an initial check to be executed
before using it for the first time.
For the initial check, please, follow the sequence below:
1)
Transceivers Power On
After following all instructions in Section
, you can turn ON both transceivers. This will apply
DC voltage to the commutator. Powering sequence makes no difference. Both LED indicators
A
and
B
(see
Figure 3-1 | Front panel - Indicators
) on commutator's front panel must be OFF in RX mode. LED indicators
A
or
B
light only while the respective transceiver transmits: this indicates to the other transceiver's operator
that he cannot transmit at the same time.
2)
Transceivers band set
Set different bands on both transceivers. Switch the antenna selector ON and the amplifier OFF (if any). Set
RF power controls of both transceivers to a possible minimum. Tune both transceivers to hear the typical
band noise.