Receiver Says Acquiring Signal or No Signal: What to Do

By Admin User · · 4 min read · 23 views

"Acquiring signal", "Searching for signal", "No signal" and "Signal lost" all mean the same thing: the receiver is trying to lock on to the transponder that carries the channel you picked, and it cannot. Either no usable signal is reaching the receiver (the dish has moved, or there is a fault in the cable or LNB), or the receiver is tuning with the wrong details (wrong satellite, an old frequency, the wrong LNB or switch setting). The fastest way to tell which is to check whether every channel is affected or only some.

What to do, step by step

  1. Check the message comes from the receiver, not the TV. If the TV itself says "No signal" on an HDMI or AV input, the receiver is off, in standby or on a different input. Select the receiver's input on the TV and wake the receiver.
  2. Look at the weather and the time. On Ku-band, a heavy downpour or wet snow can drop the signal for a while; C-band is far less affected. If it comes back when the weather clears, that was rain fade, not a fault. A few minutes of lost signal at the same time each day, for about a week around the March and September equinoxes, is sun outage: the sun is behind the satellite, and it passes on its own.
  3. Restart the receiver at the wall. Switch it off at the mains, wait a minute and switch it on. This clears a stuck tuner and resets the LNB supply if it had shut off.
  4. Check whether it is every channel or only some.
    • Only channels on one polarisation or one band: for example every horizontal channel, or every channel above 11.7 GHz on a universal LNB. That points to the voltage or 22 kHz switching: check the 22 kHz setting, that LNB power is on, a long or thin cable (some receivers have a long-cable or +1 V option), and test the LNB.
    • Only some other channels: those channels have probably moved to another frequency, stopped broadcasting, or are on a beam that does not reach you. Re-scan the satellite, or look up the channel's current frequency on its channel page.
    • Every channel on one satellite, others fine (a setup with more than one LNB): check the DiSEqC port for that satellite and that satellite's LNB and cable.
    • Every channel: the problem is between the dish and the receiver input. Go through the satellite dish no signal checklist.
  5. Open the receiver's signal screen on an affected channel (often the Info button pressed twice, or a Signal option in the menu) and read both bars.
    • Strength and quality both near zero: nothing usable reaches the tuner. Check the cable, the connectors and LNB power, then test the LNB.
    • Strength present, quality 0%: the receiver gets power from the LNB but cannot lock. See signal strength high but quality 0%.
    • Quality low and jumping up and down: the dish is slightly off, something partly blocks the view, or the weather is bad. Re-point the dish using the azimuth, elevation and skew from the alignment calculator and peak it on quality.
  6. On a pay-TV box, run its own signal test. Many provider boxes have a signal test or check-switch option in their settings menu that shows which input or satellite is missing. If the dish was installed by the provider, they can also check your account and signal from their end.
  7. Reset only as a last step. A factory reset or a full re-scan can fix a corrupted channel list, but you lose your favourites and any manual settings. Note the LNB and DiSEqC settings first.

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