From 8d2671fadb500a6e93209fb71f5a43a8d027429f Mon Sep 17 00:00:00 2001
From: Jakob Ketterl <jakob.ketterl@gmx.de>
Date: Fri, 1 Sep 2023 19:33:26 +0200
Subject: [PATCH] use bandpass from underlying mode if available

---
 htdocs/lib/DemodulatorPanel.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/htdocs/lib/DemodulatorPanel.js b/htdocs/lib/DemodulatorPanel.js
index 995f53a1..4c61af24 100644
--- a/htdocs/lib/DemodulatorPanel.js
+++ b/htdocs/lib/DemodulatorPanel.js
@@ -135,8 +135,10 @@ DemodulatorPanel.prototype.setMode = function(requestedModulation, underlyingMod
 
     if (mode.type === 'digimode') {
         this.demodulator.set_secondary_demod(mode.modulation);
-        if (mode.bandpass) {
-            this.demodulator.setBandpass(mode.bandpass);
+        var uMode = Modes.findByModulation(underlyingModulation);
+        var bandpass = mode.bandpass || (uMode && uMode.bandpass);
+        if (bandpass) {
+            this.demodulator.setBandpass(bandpass);
         } else {
             this.demodulator.disableBandpass();
         }