diff --git a/DMRIDUpdateBM.sh b/DMRIDUpdateBM.sh
new file mode 100644
index 0000000..bc40817
--- /dev/null
+++ b/DMRIDUpdateBM.sh
@@ -0,0 +1,97 @@
+#! /bin/bash
+
+###############################################################################
+#
+# DMRIDUpdate.sh
+#
+# Copyright (C) 2016 by Tony Corbett G0WFV
+# edit by R2AJV
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+###############################################################################
+#
+# On a Linux based system, such as a Raspberry Pi, this script will perform all 
+# the steps required to maintain the DMRIds.dat (or similar) file for you.
+#
+# It is designed to run from crontab and will download the latest IDs from the 
+# BM network database and optionally keep a backup of previously
+# created files for you.
+#
+# It will also prune the number of backup files according to a value specified
+# by you in the configuration below.
+#
+# When done, it will restart MMDVMHost to make the ID changes take effect.
+#
+# To install in root's crontab use the command ...
+#
+#     sudo crontab -e
+#
+# ... and add the following line to the bottom of the file ...
+#
+#     0  0  *  *  *  /path/to/script/DMRIDUpdateBM.sh 1>/dev/null 2>&1
+#
+# ... where /path/to/script/ should be replaced by the path to this script.
+#
+###############################################################################
+#
+#                              CONFIGURATION
+#
+# Full path to DMR ID file
+DMRIDFILE=/path/to/DMR/ID/file/DMRIds.dat
+#
+# How many DMR ID files do you want backed up (0 = do not keep backups)
+DMRFILEBACKUP=1
+#
+# Command line to restart MMDVMHost
+RESTARTCOMMAND="systemctl restart mmdvmhost.service"
+# RESTARTCOMMAND="killall MMDVMHost ; /path/to/MMDVMHost/executable/MMDVMHost /path/to/MMDVM/ini/file/MMDVM.ini"
+
+###############################################################################
+#
+# Do not edit below here
+#
+###############################################################################
+
+# Check we are root
+if [ "$(id -u)" != "0" ] 
+then
+	echo "This script must be run as root" 1>&2
+	exit 1
+fi
+
+# Create backup of old file
+if [ ${DMRFILEBACKUP} -ne 0 ]
+then
+	cp ${DMRIDFILE} ${DMRIDFILE}.$(date +%d%m%y)
+fi
+
+# Prune backups
+BACKUPCOUNT=$(ls ${DMRIDFILE}.* | wc -l)
+BACKUPSTODELETE=$(expr ${BACKUPCOUNT} - ${DMRFILEBACKUP})
+
+if [ ${BACKUPCOUNT} -gt ${DMRFILEBACKUP} ]
+then
+	for f in $(ls -tr ${DMRIDFILE}.* | head -${BACKUPSTODELETE})
+	do
+		rm $f
+	done
+fi
+
+# Generate new file
+curl 'http://registry.dstar.su/dmr/DMRIds.php' 2>/dev/null > ${DMRIDFILE}
+
+# Restart MMDVMHost
+eval ${RESTARTCOMMAND}
diff --git a/RSSI/RSSI_gm340uhf_RA4NHY.dat b/RSSI/RSSI_gm340uhf_RA4NHY.dat
new file mode 100644
index 0000000..1a84ffa
--- /dev/null
+++ b/RSSI/RSSI_gm340uhf_RA4NHY.dat
@@ -0,0 +1,106 @@
+#Data to RSSI.dat by RA4NHY
+#Values in the RSSI.dat file are obtained using the MMDVMCal calibration program (S mode), the high-frequency generator and the Motorola GM340UHF radio station.
+#For different radio stations, the values are slightly different.
+#For example, for those GM340 that I had, the discrepancy is about 10 dB.
+#Therefore, it is desirable to carry out calibration for each radio station.
+#More about RSSI and a homebrew MMDVM node you can read here https://drive.google.com/file/d/0B_UNZTdPtyZUUjN2d2llV0RtNTQ/view  but unfortunately in Russian only
+#Ivan, RA4NHY
+
+1045	-43
+1043	-46
+1042	-47
+1041	-48
+1039	-49
+1036	-50
+1030	-51
+1024	-52
+1017	-53
+1009	-54
+1003	-55
+992	-56
+980	-57
+967	-58
+955	-59
+941	-60
+929	-61
+916	-62
+905	-63
+893	-64
+884	-65
+874	-66
+865	-67
+856	-68
+848	-69
+839	-70
+831	-71
+823	-72
+815	-73
+805	-74
+799	-75
+789	-76
+778	-77
+767	-78
+757	-79
+746	-80
+737	-81
+727	-82
+719	-83
+711	-84
+704	-85
+696	-86
+689	-87
+682	-88
+674	-89
+667	-90
+659	-91
+650	-92
+641	-93
+630	-94
+621	-95
+610	-96
+598	-97
+586	-98
+575	-99
+564	-100
+554	-101
+544	-102
+535	-103
+526	-104
+521	-105
+512	-106
+504	-107
+495	-108
+486	-109
+477	-110
+468	-111
+458	-112
+449	-113
+439	-114
+431	-115
+421	-116
+412	-117
+404	-118
+395	-119
+387	-120
+381	-121
+374	-122
+368	-123
+363	-124
+360	-125
+355	-126
+352	-127
+348	-128
+345	-129
+344	-130
+342	-131
+340	-132
+339	-133
+338	-134
+337	-135
+336	-136
+335	-137
+334	-138
+333	-139
+332	-140
+331	-141
+330	-142