Note
he DM-990 provides two identical 4 ½” meters to compliment the “virtual” meters on the TS- 990’s LCD panel. One meter is dedicated to the Main receiver, and the other to the Sub receiver. Each can show S-Meter reading, final amplifier voltage and current, power output, SWR, compression level and ALC level. The front panel also provides zero-set adjustments, should the meters ever need to be zeroed.
Both meters are illuminated by high-visibility blue-white LEDs from behind. The brightness is adjustable.
There are two connections on the rear panel: the input cable from radio, and the DC input jack (matching 5.5 x 2.5mm power cable provided, center positive).
Note that the DM-990 is designed specifically for the TS-990 transceiver; it will not work correctly with any other radio.
