Nissei DG-503 Instruction Manual

Model: DG-503 & DG-503MAX Instruction manual
INTRODUCTION
This SWR & Watt meter is highly accurate for measuring Forward Power,
Reflected Power, and the VSWR of Analog and Digital transceivers
Main Features:
1. Large LCD (3.5") display for easy of reading
2. Forward / Reflected power / VSWR ratio in one push button
3. Selectable to measure DMR (TDMA), AM, SSB (DG-503MAX)
4. LCD backlight display
5. Convenient control layout for easy operation
6. Packing gift box and DC 12V wire
SPECIFICATIONS
MODEL
Frequency Range
Measurement (Analog mode)
Measurement (MAX mode)
Calibration point
Power Range
Accuracy
Minimum Power for SWR
Input/Output Connector
Weight (Net)
Insertion Loss
Testing Function
Input/Output Impedance
Dimension (W/H/D) mm
Accessories
<FRONT PANEL>
1
<REAR PANEL>
Digital SWR / Watt Meter
4 2
<FRONT & REAR PANEL>
1. LCD Display : Indicates FWD/REF and VSWR
2. HF & V/UHF band switch
3. Power switch
4. MAX : Measuring DMR (TDMA) / AM / SSB
3
<REAR PANEL>
5&8.TX : Coax connector to transmitter RF output
6&9. ANT : Coax connector to antenna system
7. Power source :12V DC wire
10. MAX switch : Selectable DMR (TDMA), AM, SSB
DG-503
1.6-60 MHz/125-525 MHz
CW, FM, FDMA
Not available
28 / 145 / 435 MHz
SO239 (N-female option)
Less than 0.1 dB
Fwd/Ref Power & VSWR ratio
140 x 84 x 122
Operation Manual, 12V DC Wire
(DG-503MAX only : when rear switch in MAX mode)
[ Black is negative (-), black/white is positive (+) ]
(Push to right 'black dot' - DG-503MAX only)
DG-503MAX
DMR (TDMA), AM, SSB
0 - 200W
(+/- 5%)
1W
750 g
50 Ohm
Made in Taiwan