From 9112c907813df664a710b82114f5cae23a106cdd Mon Sep 17 00:00:00 2001
From: c vw <dl1ycf@darc.de>
Date: Wed, 5 Jan 2022 10:33:50 +0100
Subject: [PATCH] "Silence first RX samples after TR/RX" feature: added HERMES
into the list of radios which require this (since many RedPitaya's show up as
a HERMES) and also added the original HermesLite which should behave similar
to its successor.
---
radio.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/radio.c b/radio.c
index 92c2430..8b5961a 100644
--- a/radio.c
+++ b/radio.c
@@ -1544,10 +1544,18 @@ static void rxtx(int state) {
if(!duplex) {
//
// Set parameters for the "silence first RXIQ samples after TX/RX transition" feature
- // the default is "no silence", that is, fastest turnaround
+ // the default is "no silence", that is, fastest turnaround.
+ // Seeing "tails" of the own TX signal (from crosstalk at the T/R relay) has been observed
+ // for RedPitayas (the identify themself as STEMlab or HERMES) and HermesLite2 devices,
+ // we also include the original HermesLite in this list (which can be enlarged if necessary).
//
int do_silence=0;
- if (protocol == ORIGINAL_PROTOCOL && (device == DEVICE_HERMES_LITE2 || device == DEVICE_STEMLAB)) {
+ if (protocol == ORIGINAL_PROTOCOL && (
+ device == DEVICE_HERMES_LITE2 ||
+ device == DEVICE_HERMES_LITE ||
+ device == DEVICE_HERMES ||
+ device == DEVICE_STEMLAB
+ )) {
//
// These systems get a significant "tail" of the RX feedback signal into the RX after TX/RX,
// leading to AGC pumping. The problem is most severe if there is a carrier until the end of
--
2.45.2