Recover TGXL TUNE on firmware 4.2 by configuring a direct connection¶

FlexRadio firmware 4.2 broke the radio-side tgxl autotune command path. Configuring a direct TCP connection from AetherSDR to the TGXL restores the TUNE button by sending the autotune command directly to the TGXL instead of routing it through the radio.

Before you start¶

AetherSDR must be connected to your FLEX-8600 radio.
Your TGXL must be powered on and reachable on the network from the machine running AetherSDR.
Know the TGXL's IP address. If the radio has already discovered the TGXL, AetherSDR will pre-fill it for you.

Steps¶

Click Settings > Radio Setup... to open the Radio Setup dialog.
Click the Peripherals tab.
Locate the TGXL row. If the IP address field is empty, enter the TGXL's IP address. The default port is 9010; leave it unchanged unless your network requires a different port.
Click Connect in the TGXL row.
Verify the button changes to Disconnect, indicating the direct TCP connection is active.
Close the dialog. The TUNE button now sends the autotune command directly to the TGXL.

AetherSDR saves the IP and port to TGXL_ManualIp and TGXL_ManualPort on a successful connect and will reconnect automatically on the next startup.

What each control does¶

Control	Behavior	Default	Setting key
IP address field (TGXL)	IP address of the TGXL on your network. Pre-filled with the radio-discovered address if available.	—	`TGXL_ManualIp`
Port field (TGXL)	TCP port for the direct TGXL connection.	`9010`	`TGXL_ManualPort`
`Connect` / `Disconnect` (TGXL)	Opens or closes the direct TCP connection to the TGXL. When connected, TUNE sends the autotune command directly to the TGXL.	Connect	—

Tips¶

The TGXL drives radio PTT through its hardware interlock cable. No additional PTT configuration in AetherSDR is needed for tuning to work once the direct connection is active.
If the radio has already discovered the TGXL on the LAN, the IP address field is pre-filled. You only need to click Connect.
The saved TGXL_ManualIp and TGXL_ManualPort values persist across restarts, so you only need to perform this setup once.

10 MHz reference source display (v0.9.7)¶

The 10 MHz Reference Source: combo box on the RX tab was updated in v0.9.7. The list of available sources and the lock-status label next to it now behave differently from earlier releases.

Source combo box¶

The combo box is now populated dynamically based on the hardware present in the connected radio and the current oscillator setting and state reported by the radio. The following sources may appear:

Entry	When shown
Auto	Always shown.
TCXO	Shown when the radio reports a TCXO is present, or when the current or reported state refers to TCXO.
GPSDO	Shown when the radio reports a GPSDO is present, or when the current or reported state refers to GPSDO.
External 10 MHz	Shown when the radio reports an external reference is present or active, or when the current or reported state refers to external. Note: the label changed from "External" to "External 10 MHz" in v0.9.7.

The combo selects the saved oscillator setting automatically when the dialog opens. If the saved setting is not in the list, the current reported state is tried; if that is also absent, Auto is selected.

Lock status label¶

The status label next to the combo box was updated to show richer information:

When Auto is selected and the radio has switched to a specific source, the label reads Auto -> \<source> followed by Locked or Unlocked.
When the requested source differs from the active source, the label reads \ -> \<active> followed by Locked or Unlocked.
When the requested and active sources match, the label reads \<source> Locked or \<source> Unlocked.
When External 10 MHz is selected but no external reference is detected, the label appends (not detected).
While waiting for the radio to report oscillator status, the label reads Waiting for oscillator status.

The label color is green when locked and red when unlocked. Before the radio reports any oscillator state, the label is shown in a neutral gray.

Troubleshooting¶

Connect button does not change to Disconnect — The TGXL is not reachable at the entered IP and port. Confirm the TGXL is powered on, check that port 9010 is not blocked by a firewall, and verify the IP address is correct.
TUNE still does not work after connecting — Confirm the Disconnect label is shown in the TGXL row, which confirms the direct connection is active. If the button reverted to Connect, the connection dropped; check network stability and reconnect.
IP address field is empty and the radio has not discovered the TGXL — Enter the TGXL's IP address manually. You can find it in your router's DHCP table or on the TGXL's front panel.
10 MHz reference source combo shows only Auto — The radio has not yet reported oscillator hardware status. Wait a moment for the connection to fully initialize, then reopen the dialog. If a known source such as GPSDO is not appearing, confirm the hardware is seated correctly and the radio firmware is 4.2 or later.
Lock status shows "Waiting for oscillator status" — The radio has not yet sent oscillator state. This clears automatically once the radio responds; no action is required.