HDSDR v2.81 Keyboard Shortcuts
Function Groups
Help / Info / Update check
F1
Start/Stop HDSDR
F2
Minimize HDSDR
F3
Exit HDSDR
F4
Exit HDSDR without saving settings
Ctrl + F4
Open sound card selection dialog
F5
Open sampling rate dialog
F6
Open Options menu
F7
Open 'RF frond-end frequency options'
F7 + R
Open 'Calibration Panel'
F7 + C
Open 'Recording Settings and Scheduler'
F7 + E
Open 'DDE to HDSDR' options
F7 + D
Save HDSDR Settings
F10
Full Screen
F11
Boss Key: Pause Wave, Mute & Minimize
Pause
Switch between RX and TX
Space
Swap position of Waterfall/Spectrum
S
Swap position of RF/AF Display
Ctrl + S
Collapse Mode (only upper Display)
Shift + C
Compact Mode (without RF + AF Display)
Shift + X
Save HDSDR screen to image file (Screenshot)
Ctrl + W
Save current RF Waterfall to image file
Ctrl + Shift + W
Save current AF Waterfall to image file
Ctrl + Shift + X
Save independent RF/AF Waterfall to image file
Ctrl + Shift + Y
(Re)Load Custom Color Palette
Ctrl + X
Zoom RF Spectrum
Ctrl + '+'
UnZoom RF Spectrum
Ctrl + '–'
Zoom to bandwidth in kHz
Ctrl + Z
Reset RF Spectrum Zoom to full bandwidth
Ctrl + Del
Increase RF FFT Resolution Bandwidth (RBW)
Ctrl + '×' (*)
Decrease RF FFT Resolution Bandwidth (RBW)
Ctrl + '÷'
Zoom AF Spectrum
Shift + '+'
UnZoom AF Spectrum
Shift + '–'
Reset AF Spectrum Zoom to full bandwidth
Shift + Del
Increase AF FFT Resolution Bandwidth (RBW)
Shift + '×' (*)
Decrease AF FFT Resolution Bandwidth (RBW)
Shift + '÷'
Speed divider between RF Spectrum and Waterfall
Ctrl + Shift + 'L'
Speed divider between AF Spectrum and Waterfall
Ctrl + Shift + 'O'
Switch Mode to AM
Ctrl + A
Switch Mode to CW
Ctrl + C
Switch Mode to DIG
Ctrl + D
Switch Mode to ECSS
Ctrl + E
Switch Mode to FM
Ctrl + F
Switch Mode to LSB
Ctrl + L
Switch Mode to USB
Ctrl + U
Set AFC carrier inactive duration - after (frequency/mode) changes
Ctrl + Shift + F
Set AFC carrier search range for AM/ECSS modes
Shift + A
Change Mode Bandwidth
W
Fast frequency input
1 - 9
Enter new Quick Tune frequency (auto LO)
Ctrl + Q or Q
Enter new LO frequency
Ctrl + O or L
Enter new Tune frequency
Ctrl + T or T
Set LO frequency on tuned frequency (to be considered LO<->Tune Offset)
C
Lock/Unlock LO Frequency
Shift + Y
Lock/Unlock Tune Frequency
Shift + T
Switch between LO A and B
Ctrl + V
Frequency Manager + Bands
Ctrl + B
Increase LO frequency by visible spectrum bandwidth
Ctrl + PageUp
Decrease LO frequency by visible spectrum bandwidth
Ctrl + PageDown
Select frequency Band
Ctrl + End
Select frequency Step
Ctrl + Home or Menu
Increase Tune frequency by Step
Ctrl + Up
Decrease Tune frequency by Step
Ctrl + Down
Increase LO frequency by Step
Ctrl + Right
Decrease LO frequency by Step
Ctrl + Left
Enter new Locut frequency
Shift + L
Enter new Hicut frequency
Shift + H
Increase Locut frequency
Shift + Up
Decrease Locut frequency
Shift + Down
Increase Hicut frequency
Shift + Right
Decrease Hicut frequency
Shift + Left
Change Mode Bandwidth
W
Mute on/off
M
Volume
'+' / '–'
Lock/Unlock Gain (AGC-off)
Shift + G
Change Squelch value
Ctrl + Shift + PageUp/PageDown
(temporary) disable/enable Squelch
Ctrl + Shift + Q
NB – Noise Blanker RF
B
NB – Noise Blanker IF
I
NR – Noise Reduction
R
select Additive Noise Generator
Ctrl + N
Increase NR, NB_RF, NB_IF, CWpeak, RF gain, IF gain, FM BandWidth,...
Ctrl + P
Decrease NR, NB_RF, NB_IF, CWpeak, RF gain, IF gain, FM BandWidth,...
Ctrl + M
AGC (fast/mid/slow/off)
G
change Gain / AGC-Threshold fast
Ctrl + Shift + '×' / '÷'
change Gain / AGC-Threshold slow
'×' / '÷'
AFC - Automatic Frequency Control
F
Set AFC carrier search range for AM/ECSS modes
Shift + A
Set AFC carrier inactive duration - after (frequency/mode) changes
Ctrl + Shift + A
Manual Notch Filter (Beat Cancel)
N
Change manual Notch Filter bandwidth
Shift + N
Automatic Notch Filter (Auto Beat Cancel)
A
CW ZAP
Z
CW Peak
P
CW Despreading
D
Change CW Pitch frequency
Shift + Z
TX mode: Switch CW carrier tone on/off
Return
select I/Q Gain (I/Q output only)
Ctrl + G
Disable Audio LoCut (=Highpass Filter) for AM/FM (useful for slow digimodes)
Ctrl + H
FM Binary Discriminator (not for listening!)
Shift + D
select RF Gain (ExtIO support required)
Ctrl + R
select IF Gain (ExtIO support required)
Ctrl + I
Show GUI of ExtIO-DLL (ExtIO support required)
H or F8
Rewind WAV file
Shift + W or Shift + Home
Jump to next WAV file (Multipart WAV file only)
Shift + F or Shift + End
Switch WAV file looping
Shift + O
Record WAV file
when AGC off, Gain locked and NR off,
then AF filename contains strength of full scale level
Shift + R
Play WAV file
Shift + P
Stop Playback/Recording
Shift + S
Pause Playback/Recording
Shift + B or Space
Change WAV step size
Shift + K
Increase WAV file position by 'step size'
Shift + PageUp
Decrease WAV file position by 'step size'
Shift + PageDown
Fast WAV file demodulation & recording
- from one wave file into another file - at maximum speed.
Sound output is deactivated.
Ctrl + Shift + F
switch TX tone generator mode
1 tone: amplitude 0.1, 0.5, 1.0
2 tones: amplitude 0.1 /2, 0.5 /2, 1.0 /2
3 tones: amplitude 0.1 /3, 0.5 /3, 1.0 /3
Default tones frequencies: 700 Hz, 1700 Hz, 2300 Hz
Ctrl + Shift + G
FM Binary Discriminator (not for listening!)
Shift + D
Change AF Spectrum Type
K
Change RF Spectrum Type
J
Change Spectrum Reference Bandwidth (PSD only)
Ctrl + J
Set Spectrum Reference Bandwidth to RBW (PSD only)
Shift + J
Switch S-Meter and RF Spectrum compensation:
off: without '= ' prepended to strength value (=default)
on: with '= ' prepended to strength value,
compensates strength value for RF/IF gain and attenuation - when known
Ctrl + Shift + J
Switch S-Meter mode: RMS / Peak
Alt + Insert
Switch S-Meter display mode: S-units / dBm
Shift + M
Single-Shot write S-Meter level to CSV
Input dialog requests comment to save in file,
e.g. signal generator level
Ctrl + Shift + Insert
Minimum Power averaging in ms for CSV
Ctrl + Insert
AutoSave S-meter level to CSV on Level-Change
Shift + Insert
AutoSave S-meter level to CSV periodically
- Input dialog requests save interval in ms
- Positive value starts periodic saving
- '0' stops periodic saving. Then you can rename the saved CSV file
Smoothing is always applied - see S-Meter Calibration (F7 + C + S)
Power values are probed every ~16 ms for avg/min/max in CSV
Insert