NISSEI SWR/WATT METER Model TX-1202 User Manual
2019.1.21
English Version R1
PRODUCT MAIN FEATURE
This wattmeter series offer many innovative features typically not found at this price level
• DC Grounded Antenna connector prevents electrostatic buildup.
• True Directional Coupler for increased accuracy over frequency.
• Low Bias Schottky Diode Detectors for increased linearity.
• Precision, large (104mm) Cross Needle Meter simultaneously displays
forward and reflected power with SWR.
• Individual Meter Scales for each power range increase reading accuracy.
• LED backlighting provides smooth, even illumination.
• Three Color Scale for improved readability.
• DC Power Cable Included.
SPECIFICATIONS
Model
Frequency Range
Center Calibrated
28.5/145 MHz
435 MHz
1260 MHz
Power Range
Power Scale
Maximum Power
Accuracy
Insertion loss
Min. Power (Forward)
Testing Function
Input/Output Impedance
Input/Output Connectors
Input power
Dimension (W/H/D)
Weight (Net)
<FRONT PANEL>
<DESCRIPTION>
1. Indicator Display : Indicates FWD/REV power in watts
and VSWR ratio
2. AVG/PEP (elliptical) push botton : Select AVG (out) or
PEP (depressed)
3. Frequency switch : Select frequency measured
4. Range switch : Selects RF power range multiplier
x1 x10 x100
5. LED ON/OFF button (elliptical) : Turn LED lamp
6. Zero adjust screws of analog cross needle meter
<REAR PANEL>
<DESCRIPTION>
7. TX connector : Coax connector to transmitter 50 ohm RF output
8. ANT connector : Coax connector to 50 ohm antenna system
9. 13.8V DC connection (via power supply) : LED illumination
Note 1 : Watch out the LED wire must be correctly
connected, black/white to '+', Black to '-'.
Wrong connection burn LED)
Note 2 : DC power is only required to run the meter
backlight. This meter will function w/o DC power
in the AVG mode, even when switch off.
184 x 118 x 131 m/m
1100 g
50 ohm
"M" type for HF/VHF Band, "N" type for UHF Band
9-14 VDC 200 mA (Max.)
Less than 1.2 : 1
1 W
Forward Power, Reversed Power, SWR, PEP
TX-1202
1.6 MHz - 1300 MHz
0 - 200W
2/20/200W
200W
±
10% of Full Scale or better
