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  TM 11-6625-3060-10
CONTROLS AND INDICATORS
Front Panel
Function
OFF-mV-dBm switch
This switch turns on the ME-526A/USM power, and selects mV
operation. The FULL SCALE dBm ranges are not used.
FULL SCALE range switches
These mV range pushbutton type switches (1,3,10,30,100, 300,1000, and
3000 and dBm scale(- 50, - 40, - 30, - 2 - 10, 0, + 10, and + 20 not
used) select the operating range. The AUTO pushbutton switch is not
used.
Digital panel display
LED, 4 digits fs counts of 3000 and 1000. Full 4-digit display with 0.01 dB
resolution. Blanked at 5% over and 20% below fs; decimal point and
units.
dBm meter
Miniature edgewise type, Indicating - 9 to + 3 dBm, 50 ohms and zero.
Meter indicator used for reference only.
PROBE (Jack)
The probe cable connector connects to the ME-526A/USM through the
PROBE jack.
ZERO (Control)
This control is used to zero the ME-526A/USM. Zero is indicated on the
scale of the dBm meter. Used with FULL SCALE 1 mV pushbutton
switch.
s Indicator
Indicates input signal level is larger (about 5%) than FULL SCALE mV
push-button switch engaged (pressed). Use the next higher mV
switch.
t Indicator
Indicates input signal level is smaller (about 12%) than FULL SCALE mV
push-button switch engaged (pressed). Use the next lower mV switch.
Polarity (-)
Not used for other than zero adjustment of rf milllvoltmeter digital panel
Indicator
display.
2-2
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