diff --git a/_Sidebar.md b/_Sidebar.md
index d0165ca..5c76c1a 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -30,10 +30,6 @@
       * [BTLE](Bluetooth-Low-Energy-Receiver)
       * [NRF](https://github.com/eried/portapack-mayhem/wiki/decoder-for-NRF24L01)
       * [Audio](Audio-Receivers)
-        * [SPEC](Spectrum-Analyser-Receiver)
-        * [WFM](Wide-FM-Receiver)
-        * [NFM](Narrow-FM-Receiver)
-        * [AM](AM-Receiver)
       * [Analog TV](https://github.com/eried/portapack-mayhem/wiki/Analog-TV-Receiver)
       * [ERT Meter](ERT)
       * [POCSAG](POCSAG-Receiver)