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Resolve an Input A and Input B antenna conflict

A conflict occurs when both Input A and Input B are assigned to the same antenna. AetherSDR signals the conflict visually so you can reassign one input before transmitting.

Before you start

  • AetherSDR has discovered a ShackSwitch device and the ShackSwitch applet is visible in the Applet Panel.
  • The ShackSwitch device has at least two antenna ports available (the INPUT B card is not shown on single-port R4 devices, so a conflict is not possible on those).

Steps

  1. Look at the antenna rows in the ShackSwitch applet. When a conflict exists, the [A] button and the [B] button on the same antenna row both blink amber.
  2. Decide which input to move. Either click the [A] button on a different antenna row to reassign Input A, or click the [B] button on a different antenna row to reassign Input B.
  3. Confirm the blinking stops. The INPUT A card and INPUT B card should each show a different antenna name, and neither button blinks.

What each control does

Control Behavior Setting key
[A] button (per antenna row) Selects that antenna for Input A. Clicking an already-selected antenna deselects it. Blinks amber when Input A and Input B are both assigned to the same antenna. β€”
[B] button (per antenna row) Selects that antenna for Input B. Clicking an already-selected antenna deselects it. Blinks amber when conflicting. When a dummy load is configured and Input B is auto-routed there, the intended row [B] button blinks amber and the dummy load row [B] button blinks orange. β€”
INPUT A card Shows the current band and antenna name assigned to Port A. Displays β€” when no antenna is selected. β€”
INPUT B card Shows the current band and antenna name assigned to Port B. Displays β€” when no antenna is selected. Hidden on single-port R4 devices. β€”
Dummy load selector Assigns an antenna as the dummy load. When configured, Port B is automatically routed to the dummy load, which can cause the amber blink on the intended antenna row. SS_DummyLoadAnt

Tips

  • If the conflict reappears immediately after you reassign an input, check whether a dummy load is configured. When SS_DummyLoadAnt is set, Port B is automatically routed to the dummy load antenna. If that antenna is the same one assigned to Input A, the conflict will persist until you either change the Input A selection or reconfigure the dummy load.
  • Clicking an already-active [A] or [B] button deselects that input entirely, leaving the corresponding card showing β€”. This is a valid way to clear one side of the conflict if you intend to leave that input unassigned.

Troubleshooting

  • Buttons keep blinking after reassignment β€” A dummy load may be auto-routing Input B back to the conflicting antenna. Open the Dummy load selector and check which antenna is set. Select a different antenna or choose None to clear it.
  • INPUT B card is not visible β€” The connected device is a single-port R4 ShackSwitch. Input B is not available on this device; a two-input conflict cannot occur.
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