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5.) Connect the IN connector to your transceiver. Do not install any active antenna matching
devices on this port. In general, the shortest and most direct cable connection is best,
although high quality cables can be very long without adverse effect on performance.
RG-58/U or Mini-8 (RG-8X) style cables are acceptable. You should never use a tuner
of any type on the amplifier input, nor should you drive this amplifier with over 100
watts peak envelope power. Never use a non-FCC accepted device with this amplifier.
6.) The ALC line is optional. In general, transceiver internal ALC is all that is necessary. The
ALC monitors the RF output power and reflected power supplied by the ALS-1306 to the
load.
7.) Operate the bandswitch manually during initial testing. Do not connect band decoders,
band data lines, or computer interfaces until initial tests are completed and the amplifier
is functioning normally.
8.) When using an automatic antenna tuner that has the capability to inhibit the amplifier
from operating either during tuning or when conditions are outside of the tuner’s
capability; and when the radio interface has the Amplifier Relay line included (not using
the RELAY jack); the KEY LINE can be used. The KEY LOOP Switch is used to route
the key signal from the interface to the amp directly or out the KEY LOOP jack.
a. If the KEY LOOP is not used set the KEY LOOP Switch to OFF so the Radio
Interface Cable can key the amplifier.
b. If the KEY LOOP is used with an automatic antenna tuner switch the KEY LOOP
Switch to ON, run a cable from the KEY LOOP connector on the amp to the
AMP ENABLE IN connector on the tuner, and run a cable from the AMP
ENABLE OUT connector to the RELAY connector on the amp.
Optional Radio Interface Cables
ALS-1306/RCS-12 Radio Interface Cables available from Ameritron.
Model No. Description Notes
DB-13D ICOM with ACC, 13-Pin DIN
DB-7DI ICOM with ACC 2, 7-Pin DIN
DB-DB7DK
Kenwood with DB9 (except TS-
480)
SET Baud RATE 9600
590 menu 53 (HF) 54 (50 MHz) #2,
570 menu 39 (HF) and 40 (50 MHz)#2
990 s menu 11 (HF) and menu 12 (50 MHz)
set to 3= active high+relay+delay
2000 menu 28A #2
DB-DB8MK Kenwood TS-480
Baud rate 9600, menu 28 (HF) channel 2 and
29 (50 MHz) channel 2
DB-8MY2
Yaesu FT-
897/857/817/840/890/990/100
DB-8DY
Yaesu with standard 8-Pin DIN
Band Data
DB-10MY Yaesu FT-450/950/1200
DB-DB15Y Yaesu FT-DX3000
DB-DB15HE Elecraft
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