Table 5-1 | Transceiver Interface Type And Command Set Selection - Acom 2020S User Manual

If the CAT cable is plugged into the transceiver's serial port (RS-232 or TTL), select the INTERFACE and
COMMAND SET according to
has to be set to the same value as the transceiver's. The byte spacing and polling time may be left
unchanged.
The different transceiver brands and models have a great variety of controls and settings of their CAT
interfaces. For maximum flexibility and clarity, they are divided into several groups (SETs). In order to select
the COMMAND SET and protocol parameters (BAUD RATE, BYTE SPACING, and POLLING TIME) suitable for
the transceiver being used, see
The BAUD RATE specifies the data transfer rate in number of bits per second (communication speed with
the transceiver). This parameter is valid only for serial (RS-232 or TTL) CAT interface. The selection should
match the baud rate selected in the respective transceiver's menu.
The BYTE SPACING introduces a pause with a specified duration (in microseconds) between the bytes
within a message sent to the transceiver. This parameter is valid only for serial (RS-232 or TTL) CAT
interface. The default byte spacing duration is zero (0 µs). The parameter should be increased only if
communication problems appear with the transceiver.
The POLLING TIME specifies how often (in milliseconds) the amplifier checks the transceiver for a new
frequency (the pause between messages sent to the transceiver). This parameter is valid only for serial (RS-
232 or TTL) CAT interface. Default duration is 500 ms. Its concerns the re-tune time of the amplifier. If too
short time is selected communication could suffer with some transceivers.

Table 5-1 | Transceiver interface type and command set selection

ELECRAFT K3, K3C, K4
ICOM (Connection to the CI-V REMOTE socket/jack)
ICOM (Connection to the RS-232 port or
RS-232 port on CT-17 (CI-V level converter))
KENWOOD TS-2000, 480, 590, 890, 990 and similar
YAESU FT(FTDX)-101, 10, 450, 950, 991, 1200, 2000, 3000, 5000, 9000,
and similar
YAESU FT-1000MP
YAESU FT-817, 857, 897
Table 5-1 | Transceiver interface type and command set selection
Page 48 of 76 | S e c t i o n MENUS - SETTINGS AND SERVICE FUNCTIONS
User's Manual | ACOM 2020S | 1.8-54 MHz Linear Power Amplifier
Table 5-1 | Transceiver interface type and command set selection
Table 5-1 | Transceiver interface type and command set selection
Transceiver
. The baud rate
.
Interface Command set
RS-232 (8N1) SET 5
TTL (8N1) SET 1
RS-232 (8N1) SET 1
RS-232 (8N1) SET 5
RS-232 (8N2) SET 2
RS-232 (8N2) SET 4
TTL (8N2) SET 3
June 2022