O P E R A T I O N C H A P T E R 1 0
1. Follow the Power Up Procedure, described above. Then click the On button (14). Set the following
controls as specified.
Table 12: Initial Control Values for Digital Mode Operation
Ctrl Value
Reference to
Figure Above
VFO A 14.09MHz (1)
RX Meter Signal (4)
TX Meter MIC (4)
BAND 20 (5)
Mode DIGU (6)
Filter 2.7kHz (7)
VAC On (8)
Display Mode Panadapter (9)
SUB RX Off (10)
XIT Off (12)
RIT Off (12)
AF 50 (21)
RF 68 (22)
Drive 50 (23)
AGC Med (24)
Preamp Med (25)
2. Ensure that on the PowerSDR Setup Form Cat Control is enabled. Also check that VAC (8) is
enabled (if VAC is auto-enabled on the Setup Form it will automatically be enabled when DIGL,
DIGU or DRM (6) modes are selected).
3. Start up your digital mode program and ensure its CAT control and sound card selection are
configured to connect to PowerSDR. If so, your digital mode program’s frequency should
correspond to PowerSDR’s VFO frequency and it should be receiving Audio from PowerSDR. Use
the RX Gain (8) control to adjust the audio level going to your digital mode program (instead of the
AF (21) ).
4. Connect a 50 ohm dummy load or tune VFO A (1) to a quiet frequency on the selected band. If
using the 100W PA, use the TUN button (20) to verify power output on the TX Meter (4) (Set to
Fwd Pow). If using the integrated ATU, select Full on the ATU Mode selection (19) and then
click the TUN button (20). See the section below on ATU Operation for more on how to use the
ATU.
CAUTION: If not using the ATU and not using a 50 ohm dummy load, ensure that the
antenna presents a 50 ohm load with a low SWR or damage may occur to
the SDR output transistors.
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145 ď›™FlexRadio Systems
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