Radio Setup

The Radio Setup dialog is the master per-radio configuration window. It provides access to radio information, network settings, GPS, TX configuration, Phone/CW settings, RX calibration, audio configuration, antenna names, filter options, transverter definitions, USB cable assignments, peripheral connections, APD sampling, theme appearance, KiwiSDR integration, callsign lookup, and FlexControl serial port setup.

Before you start

• AetherSDR must be connected to the radio. Many fields are populated from live radio data.
• The dialog remembers its size and position between sessions. If the dialog appears off-screen, delete the RadioSetupDialogGeometry entry from your settings file.

Opening Radio Setup

1. Click Settings > Radio Setup....
2. The dialog opens at its last-used position and size.

Radio tab

The Radio tab shows identifying information reported directly by the radio — serial number, hardware version, regulatory region, and licensed options. Use this page to verify what hardware and options your radio has before troubleshooting or contacting support.

Steps

1. Click Settings > Radio Setup....
2. The dialog opens on the Radio tab by default.
3. Read the values in the Radio Information group:
4. Radio SN — the chassis serial number.
5. HW Version — the hardware version string reported by the radio.
6. Region — the radio's regulatory region (defaults to USA if the radio does not report one).
7. Options — the licensed options active on this radio (for example, GPS, PGXL).

What each control does

Label	Kind	Behavior
Radio SN	Indicator (read-only)	Chassis serial number. Includes a clipboard copy button (tray icon) next to the value.
HW Version	Indicator (read-only)	Hardware version string. Includes a clipboard copy button next to the value.
Region	Indicator (read-only)	Regulatory region. Displays USA if the radio reports none.
Options	Indicator (read-only)	Licensed radio options. Includes a clipboard copy button next to the value.
Remote On	Push button	Enables remote wake / remote-on.
FlexControl	Indicator	Detected state of FlexControl hardware.
multiFLEX	Indicator	multiFLEX enabled state.
Model	Indicator (read-only)	Radio model. Includes a clipboard copy button next to the value.
Nickname	Text field	User-friendly radio nickname.
Callsign	Text field	Station callsign.
Station Name	Text field	Identifies this AetherSDR client to other multiFLEX stations. Defaults to the OS hostname if empty. Stored in AppSettings as StationName.
License Info	Indicator	Displays license details from the radio (Subscription, Expiration, Radio ID, Licensed version). Each field includes a clipboard copy button.
Check for Update	Push button	Queries for firmware updates.
Select Installer...	Push button	Opens a file dialog for a SmartSDR installer (.msi, .exe) or pre-extracted .ssdr firmware file. Passes the selected path to FirmwareStager which extracts .ssdr payload and emits progress.
Upload Firmware	Push button	Starts firmware upload with progress bar and status.
Reboot Radio	Push button	Reboots the connected radio. Disabled when radio is disconnected. Shows a confirmation dialog before rebooting. LAN sessions auto-reconnect; WAN/SmartLink sessions require manual reconnect.

All Radio Information fields are read-only. No persisted settings keys are associated with them.

Rebooting the radio

The Reboot Radio button is located in the Radio Information group. It is enabled only while AetherSDR is connected to the radio.

1. Click Reboot Radio.
2. A confirmation dialog appears:
3. On LAN connections: "AetherSDR will disconnect and automatically reconnect once the radio finishes booting."
4. On WAN/SmartLink connections: "AetherSDR will disconnect. SmartLink/WAN sessions do not auto-reconnect today — you will need to reconnect manually once the radio finishes booting."
5. Click OK to confirm. The dialog closes automatically after confirming.
6. The radio reboots. AetherSDR disconnects and reconnects automatically on LAN, or waits for manual reconnection on WAN.

Copying radio information

Each value in the Radio Information group has a small copy button to its right. Click the copy button to copy the value to the clipboard.

Copy target	What is copied
Radio SN	The chassis serial number string.
HW Version	The hardware version string (with v prefix).
Region	The regulatory region string.
Options	The licensed options string.
Remote On	The "Remote On" label text.
FlexControl	The FlexControl state string.
multiFLEX	The multiFLEX state string.
Model	The radio model string.
Nickname	The nickname text.
Callsign	The callsign text.
Station Name	The station name text.
License Info	The full license details string.
Check for Update	The "Check for Update" label text.
Select Installer...	The file path text after browsing.
Upload Firmware	The "Upload Firmware" label text.

The copy button appears as a small document icon. It is only clickable when the associated value is non-empty and not a dash placeholder. When clicked, the value is copied to the system clipboard and a brief "Copied!" popup appears near the button.

Network tab

The Network tab shows radio network information and advanced network options.

Steps

1. Click Settings > Radio Setup....
2. Click the Network tab.

What each control does

Label	Kind	Behavior
IP Address / Mask / MAC Address	Indicator (read-only)	Read-only network addresses. Each includes a clipboard copy button.
Enforce Private IP Connections:	Toggle button	Rejects non-RFC1918 peers.
Network MTU:	Spinbox	Sets maximum outgoing VITA-49 UDP packet size in bytes. Range 576-9000 bytes, default 1450. Stored in AppSettings as NetworkMtu.
DHCP / Static	Toggle button	Switches between DHCP and Static IP modes.
IP Address: / Mask: / Gateway:	Text field	Static IP configuration fields.
Apply	Push button	Pushes the network config to the radio.

GPS tab

The GPS tab shows GPS presence and live lat/lon/alt/time/satellites info.

Steps

1. Click Settings > Radio Setup....
2. Click the GPS tab.

No additional settings keys or controls beyond what is shown in the tab.

TX tab

The TX tab shows TX timings, interlocks, max power, tune mode, waterfall display, slice/TX follow and TX Band Settings shortcut.

Steps

1. Click Settings > Radio Setup....
2. Click the TX tab.

What each control does

Label	Kind	Behavior
TX Band Settings	Push button	Opens the dedicated per-band power/tune dialog.
Timings (in ms)	Spinbox	TX hang / delay timings.
Interlocks - TX REQ: RCA / Accessory	Toggle button	Enables RCA and accessory interlock inputs.
Max Power:	Spinbox	Sets radio-level TX power cap. Range 0-100 %.
Tune Mode:	Combo box	Selects how the tune button behaves.
Show TX in Waterfall:	Toggle button	Draws TX signal in the waterfall.
TX Follows Active Slice	Push button	TX follows the active slice. Mutually exclusive with Active Slice Follows TX. Disabled automatically during Split operation. Stored in AppSettings as TxFollowsActiveSlice.
Active Slice Follows TX	Push button	Switches the active slice when TX moves externally (e.g. WSJT-X or CAT). Mutually exclusive with TX Follows Active Slice. Stored in AppSettings as ActiveFollowsTxSlice.

TX Timings

Field	Display unit	Radio storage unit	Behavior
ACC TX:	ms	ms	Accessory TX delay.
TX Delay:	ms	ms	TX keying delay.
RCA TX1:	ms	ms	RCA TX1 delay.
Timeout:	seconds	ms	Interlock timeout. Displayed in whole seconds for readability; the radio expects and stores milliseconds.

Phone/CW tab

The Phone/CW tab shows microphone, CW keyer, RTTY defaults.

Steps

1. Click Settings > Radio Setup....
2. Click the Phone/CW tab.

What each control does

Label	Kind	Behavior
Enable/Disable the Level Meter During Receive	Toggle button	Shows mic level meter even in RX.
Iambic:	Toggle button	Enables or disables the iambic keyer on the radio.
Iambic Mode: A / B	Push button	Selects Curtis iambic mode A or B for both the radio and the local software keyer. Mutually exclusive pair.
Swap:	Toggle button	Swaps dit/dah.
Sideband:	Combo box	Selects CW pitch sideband (LSB
CWX:	Toggle button	Enables CWX macro keying.
Decode:	Toggle button	Enables the CW decode overlay on the panadapter. Stored in AppSettings as CwDecodeOverlay.
RTTY Mark Default:	Spinbox	Default RTTY mark frequency.

RX tab

The RX tab shows GPSDO frequency offset calibration and 10 MHz reference source.

Steps

1. Click Settings > Radio Setup....
2. Click the RX tab.

What each control does

Label	Kind	Behavior
Cal Frequency (MHz):	Spinbox	Frequency used for manual calibration.
Start	Push button	Starts the frequency calibration sweep.
Freq Offset (ppb):	Spinbox	Manual frequency offset in ppb.
10 MHz Reference Source:	Combo box	Selects oscillator reference source. Options: Auto, TCXO, GPSDO, External. Lock status (Locked / Unlocked) is shown alongside.

Frequency calibration

The calibration controls are always visible regardless of whether a GPSDO is installed. The status banner at the top of the group reads:

• GPSDO installed — "GPSDO installed. Manual frequency offset calibration available." (green text)
• No GPSDO — "Manual frequency offset calibration available." (amber text)

The following controls are available in both configurations:

Label	Kind	Behavior
Cal Frequency (MHz):	Spinbox	Frequency used for calibration. Enter the known reference frequency before clicking Start.
Start	Push button	Starts the frequency calibration sequence. The button is disabled and its label changes to Busy while calibration is in progress. Before triggering the PLL sweep, AetherSDR resets the radio's frequency error to zero (radio set freq_error_ppb=0) and then issues radio pll_start. If the Cal Frequency field is empty, the button shows a warning and takes no action.
Freq Offset (ppb):	Spinbox	Manual frequency offset in parts per billion, applied after calibration completes or set directly for manual correction.

Audio tab

The Audio tab shows radio audio outputs, compression, PC devices, boost, buffer, recording and NVIDIA BNR container.

Steps

1. Click Settings > Radio Setup....
2. Click the Audio tab.

What each control does

Label	Kind	Behavior
Line Out:	Slider	Line-out gain.
Mute (Line Out)	Push button	Mutes line-out.
Headphone:	Slider	Headphone gain.
Mute (Headphone)	Push button	Mutes headphone.
Front Speaker: / Mute	Push button	Mutes front speaker (model-specific).
Audio Compression (SmartLink): Auto / Uncompressed / Opus	Push button	Selects audio codec for SmartLink/LAN. Stored in AppSettings as AudioCompression.
Prevent system sleep while connected	Checkbox	Keeps OS awake while radio is connected to prevent audio/TCP/UDP stream drops during idle. Stored in AppSettings as InhibitSleepWhileConnected.
PC Audio Devices: Input: / Output:	Combo box	Picks host audio in/out devices.
Audio Boost:	Toggle button	Enables extra gain on the client audio path. Stored in AppSettings as AudioBoost.
Audio Buffer:	Text field	Increases audio buffer in milliseconds for VPN/SmartLink jitter. Range 50-1000 ms, default 200. Stored in AppSettings as AudioBufferMs.
Recording: Radio Side / Client Side	Push button	Picks radio-side or client-side recording. Stored in AppSettings as RecordingMode.
Save to:	Text field	Folder for saved recordings (client-side only). Defaults to Documents/AetherSDR/Recordings. Stored in AppSettings as QsoRecordingDir.
... (browse)	Push button	Browses for recording folder.
Auto-record on TX	Checkbox	Automatically records while transmitting. Stored in AppSettings as QsoRecordingAutoRecord.
Idle timeout:	Spinbox	Seconds of silence before