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1. Connect a short jumper to CN2 on the SDR-3A board.
Please do not connect anything to CN7 (BNC).
2. Press SW4 to start measurement. Wait until the measurement is
over.
3. Cursor A (main) moves with RE1, cursor B (difference) moves with
RE2.
Cursor A displays the measured value at the cursor and cursor B
shows the difference from cursor A.
When RE1 is pressed, the cursor A moves to the peak frequency,
and when RE2 is pressed, the cursor B moves to the peak
frequency.
4. With SW1, the setting screen is displayed, you can change various
settings.
You can select the setting menu item with RE1, and change the
setting value with RE2.
Press SW1 to return to the original measurement screen.
"1. SPAN"
... measurement span is set
"2. MAG ref" ... Set the top (ref) of graph
"3. dB/div" ... graph Set the vertical axis sensitivity
The center frequency is fixed at IF1 frequency.
5. Press and hold SW1 to return to the "function selection menu" screen.
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１
. Xtal Filter measure
Function selection menu screen
measuring
SPAN:1MHz 10dB/div
Select "3.Xtal Filter" from "Function selection menu" screen.
