SPM-32A ... SPM-36A 4.2 Operation and features
4-21
tuned to give correct reception. The correct offsets are
given below:
LOWER SB -2 kHz
UPPER SB +2 kHz
• Select the sideband:
By pressing [DEMOD] you can toggle between the LSB
and USB (display "UPPER SB", "LOWER SB").
• Select the 3.1 kHz bandwidth
Press [*] and [6]
---> (see section 4.2.4 on page 4-39)
• Adjust the volume using the up / down keys:
– Volume up with [↑] or [↑↑ ] in 2 or 6 dB steps
– Volume down with [
↓
] or [
↓↓
] in 2 or 6 dB steps.
The loudspeaker volume can only be set if the displayed
mode line "DEM. UPPER SB" is marked by an arrow. If no
arrow is displayed press [DEMOD] once or twice.
The frequency can be fine tuned by means of the up / down
keys, [TUNE] or [STEP]
Fig. 4-4 Example showing the setting for single sideband
demodulation. The instrument is receiving the USB.
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