per @dafeman 1.8V works on E22

src/mesh/SX1262Interface.cpp

@@ -25,7 +25,7 @@ bool SX1262Interface::init()
     float tcxoVoltage = 0; // None - we use an XTAL
 #else
     float tcxoVoltage =
-        2.4; // E22 uses DIO3 to power tcxo per https://github.com/jgromes/RadioLib/issues/12#issuecomment-520695575
+        1.8; // E22 uses DIO3 to power tcxo per https://github.com/jgromes/RadioLib/issues/12#issuecomment-520695575
 #endif
     bool useRegulatorLDO = false; // Seems to depend on the connection to pin 9/DCC_SW - if an inductor DCDC?