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NOAA Weather No Signal

Uniden Marine VHF Radio

Severity: Minor

Source: OnlyErrorCodes.com — Every error code. One place.

Uniden Marine VHF NOAA Weather No Signal — Reception Fix

What Does This Error Mean?

Uniden VHF can't receive NOAA weather when the antenna is shadowed (under hardtop, behind metal), the radio is far from a NOAA transmitter (over 40 miles), or the antenna cable is damaged.
Try moving outdoors to clear sky, switch to a different weather channel (WX1-WX10 — different transmitters), and check antenna connections for green corrosion.
NOAA range is line-of-sight, typically 40 miles from transmitter.

Affected Models

  • Uniden UM385
  • Uniden UM625C
  • Uniden MHS75
  • Uniden MHS335BT
  • Uniden Atlantis 270

Common Causes

  • Antenna shadowed by hardtop, T-top, or radar arch
  • Distance from NOAA transmitter exceeds 40-mile range
  • Wrong weather channel selected (different transmitters cover different areas)
  • Antenna cable kinked or salt-corroded at connectors
  • Internal antenna on handheld too low for the location
  • Squelch set too high (hides weak signal)

How to Fix It

  1. Try all weather channels.

    Uniden VHFs receive WX1 through WX10.
    Different NOAA transmitters use different channels.
    Cycle through WX1, WX2, WX3 and so on.
    Whichever has the strongest signal is your nearest transmitter.

  2. Move to clear sky.

    If you're under a hardtop, T-top, or surrounded by metal, the VHF antenna is shadowed.
    Move outside the cabin to clear sky — check weather there.
    If signal returns outdoors, your installation has line-of-sight problems.

  3. Check antenna connections (fixed-mount).

    Trace antenna cable from antenna head to radio.
    Look at SO-239 connector at radio end — green corrosion is common.
    Unscrew, clean both faces with fine sandpaper or contact cleaner, reconnect.
    Loose or corroded connections kill weak signals first (NOAA is weakest).

  4. Lower the squelch.

    Squelch hides weak signals as silence.
    Set squelch to minimum (most VHFs have a control knob or menu setting).
    You'll hear static, but you'll also hear weak NOAA broadcasts that squelch was hiding.

  5. Check the NOAA coverage map.

    Visit weather.gov/nwr to see NOAA Weather Radio coverage in your area.
    Some coastal areas are between transmitters and have weak coverage.
    If your boat works in a coverage gap, no antenna fix gets you NOAA reliably.

  6. For handhelds: extend antenna fully.

    Handheld VHFs have telescoping or rubber-duck antennas.
    Extend telescoping fully when listening for weather.
    Holding the radio at chest level works better than at the waist (line of sight).

Frequently Asked Questions

Why does my marine VHF have weather but my cell phone weather app doesn't help?

Cell phone weather apps need cellular signal, which fades 5-15 miles offshore.
NOAA Weather Radio over VHF works wherever you can reach a NOAA transmitter — usually 40+ miles offshore.
This is why VHF weather is critical for offshore boating.