If they do not, use a small flat-blade screwdriver to gently adjust the zero-set screw on the front panel beneath each meter until the needle is exactly zeroed. Both needles should rest on the zero setting on the Po scale.

Place the DM-7800 on a level surface and carefully examine the meter needles with the radio powered off. Setup Zero setting Your DM-7800 s meters were set to zero at the factory, but it s possible to become uncalibrated during shipping. Use a suitable power supply that can provide up to 100 ma. The red wire would go to +12 volts DC and the black wire would go to ground. This cable has a 2.5mm power plug on one end and stripped and tinned wires on the other end. If you wish to power the DM-7800 from another source other than the radio, a separate power cable is provided. Position the radio and meter for normal use. The backlight LEDs on the meter will come on when the radio is turned on. Then plug the 2.1mm end into the Aux Power jack on the back of the radio Next, connect the stereo 1/8 plug from the meter to the stereo 1/8 Meter jack on the back of the radio. If you cannot distinguish between the two ends, plug the power cable into the meter first. Position your IC-7800 in a convenient spot on your operating desk, anywhere within reach of its rear interface and power cables Your DM-7800 includes a matching power cable that will connect to the coaxial DC Out jack on the back of the IC The radio has a 2.1mm jack and the meter has a 2.5mm jack. Turn your radio off before starting the installation. If you use it outdoors (Field Day, for example) you must protect it from rain. 4Р”Тђ Installation The DM-7800 is intended for indoor use only it is not water resistant. Note that the DM-7800 is designed specifically for the IC-7800 transceiver it will not work correctly with any other radio. There are three screwdriver adjustments on the back: meter illumination brightness (controls brightness of both meters together), and separate full-scale calibration settings for the Main and Sub meters. On the back of the DM-7800, there are two connections: the input cable (permanently attached), and the DC input jack (matching 5.5 x 2.5mm plug (center positive) and power cable provided). This backlighting is very attractive, easy on the eyes during long operating sessions, and makes it easy to read the meters precisely. Both meters are illuminated by high-visibility blue-white LEDs from behind. The front panel also provides zero-set adjustments, should the meters ever need to be zeroed. Each meter s function can be set independently in the IC-7800 s setup menu.

Each can show S-Meter reading, final amplifier voltage and current, power output, SWR, compression level and ALC level. One meter is dedicated to the Main receiver, one to the Sub receiver. The DM-7800 provides two identical 4 1/2 meters to compliment the virtual meters on the IC s LCD panel. Specifications Power requirement: 12 volts, 100 ma (for meter illumination only) Input: Single cable, plugs into External Meter jack of IC-7800 Meters: 4.5, 7 scales Meter illumination: blue-white LED backlight, adjustable brightness 3Р”В¤ Getting to know your DM-7800 Your DM-7800 is a quality, precision instrument that will give you many years of outstanding service take a few minutes to get to know it. Select the desired parameters to be displayed from the radio s ACC menu. Connect the DM-7800 s cable to the Meter jack on the back of the IC Connect the provided12v DC input jack to the Power jack on the back of the IC The 2.5 mm side goes to the meter and the 2.1 mm side goes to the IC This is only needed to illuminate the meter faces. 3 Jumpstart, or Real hams don t read manuals! Ok, but at least read this one section before you transmit: 1.

Ic-7800 s-meter