Editing SimTX Guide/Troubleshooting (section)

== Nothing heard ==
On the receiving side:
# Check that the bridge is '''Running''' in the '''Bridges''' list.
# Check that your SDR program is connected to the address and port shown under '''Bridge'''.
# Check that the signal is inside the band: the '''Center frequency''' plus or minus half the '''Sample rate'''.
# Set the SDR program's mode and bandwidth to match the transmission.
# Consider propagation: distance, band and time of day decide whether a signal gets through. See [[Propagation Basics]].
# For a directional antenna, check where it points. See [[SimTX Guide/Rotators and tracking|Rotators and tracking]].
# For a satellite, check that a pass is in progress and that '''Correct Doppler''' is ticked. A satellite low on the horizon can be hidden by hills.

On the transmitting side:
# Check that the session is '''Running''', not '''Queued''' or '''Paused'''.
# Press '''Listen to own TX''' to check the audio.
# Check the radio deck: '''BUF/s''' above zero, '''SWR/:1''' low and '''FWD/W''' near the power you set.
# Check that the listener is on the same server.