diff --git a/overlay/etc/skel/.local/share/emcomm-tools/voacap/et-voacap.sh b/overlay/etc/skel/.local/share/emcomm-tools/voacap/et-voacap.sh
new file mode 100755
index 0000000..d66609d
--- /dev/null
+++ b/overlay/etc/skel/.local/share/emcomm-tools/voacap/et-voacap.sh
@@ -0,0 +1,140 @@
+#!/bin/bash
+#
+# Author  : Gaston Gonzalez
+# Date    : 23 May 2023
+# Updated : 16 August 2025
+# Purpose : Offline HF prediction using voacapl
+
+if [[ $# -ne 4 ]]; then
+  echo "Usage $(basename $0) <callsign1> <callsign2> <power> <mode>"
+  echo "  <callsign1>   Callsign of transmitting station"
+  echo "  <callsign2>   Callsign of receiving station"
+  echo "  <power>       Output power [5|100|500|1500]"
+  echo "  <mode>        Mode         [AM|CW|FT8|SSB]"
+  exit 1
+fi
+
+ET_SSN="${HOME}/.local/share/emcomm-tools/voacap/ssn.txt"
+if [[ ! -e ${ET_SSN} ]]; then
+  "Sunspot numbers not available: ${ET_SSN}. Exiting"
+  exit 1
+fi
+
+ET_VOA_WORKING_DIR=$HOME/itshfbc/run
+ET_VOA_REPORT=${ET_VOA_WORKING_DIR}/voacapl.txt
+INP=${ET_VOA_WORKING_DIR}/voacapx.dat
+OUT=${ET_VOA_WORKING_DIR}/voacapx.out
+
+# Year = 2023
+YEAR=$(echo $(date '+%Y'))
+
+# Month (May) = 5.00
+MONTH=$(date +'%m')
+MONTH_FMT=$(date +'%-m.00')
+
+#######################################################################
+# TX Antenna
+#######################################################################
+
+TX_STATION=$1
+TX_JSON=tx-station.json
+curl -f -s http://localhost:1981/api/license?callsign=$TX_STATION > $TX_JSON
+TL=$(cat $TX_JSON | jq .lat)
+TK=$(cat $TX_JSON | jq .lon)
+
+TL1=$( awk -v n1=$TL -v n2=90 -v n3=-90 'BEGIN {if (n1<n3 || n1>n2) printf ("%s", "a"); else printf ("%.2f", n1);}' )
+
+# add North or South (N/S)
+TLA=$( awk -v n1=$TL1 -v n2=0 'BEGIN {if (n1<n2) { n1=substr(n1,2); printf ("%6sS", n1); } else printf ("%6sN", n1);}' )
+
+TK1=$( awk -v n1=$TK -v n2=180 -v n3=-180 'BEGIN {if (n1<n3 || n1>n2) printf ("%s", "a"); else printf ("%.2f", n1);}' )
+		    
+# add East or West (E/W)
+TLO=$( awk -v n1=$TK1 -v n2=0 'BEGIN {if (n1<n2) { n1=substr(n1,2); printf ("%7sW", n1); } else printf ("%7sE", n1);}' )
+
+
+#######################################################################
+# RX Antenna
+#######################################################################
+
+RX_STATION=$2
+RX_JSON=rx-station.json
+curl -f -s http://localhost:1981/api/license?callsign=$RX_STATION > $RX_JSON
+RL=$(cat $RX_JSON | jq .lat)
+RK=$(cat $RX_JSON | jq .lon)
+
+echo "RX ($RX_STATION):  $RL,$RK"
+RL1=$( awk -v n1=$RL -v n2=90 -v n3=-90 'BEGIN {if (n1<n3 || n1>n2) printf ("%s", "a"); else printf ("%.2f", n1);}' )
+
+# add North or South
+RLA=$( awk -v n1=$RL1 -v n2=0 'BEGIN {if (n1<n2) { n1=substr(n1,2); printf ("%6sS", n1); } else printf ("%6sN", n1);}' )
+
+RK1=$( awk -v n1=$RK -v n2=180 -v n3=-180 'BEGIN {if (n1<n3 || n1>n2) printf ("%s", "a"); else printf ("%.2f", n1);}' )
+
+# add East or West
+RLO=$( awk -v n1=$RK1 -v n2=0 'BEGIN {if (n1<n2) { n1=substr(n1,2); printf ("%7sW", n1); } else printf ("%7sE", n1);}' )
+
+# Power settings
+PWR=$3
+PW="0.0800"
+echo "TX Power: ${PWR} watts"
+if [ "$PWR" = "5" ]; then
+    PW="0.0040"
+elif [ "$PWR" = "100" ]; then
+    PW="0.0800"
+elif [ "$PWR" = "500" ]; then
+    PW="0.4000"
+elif [ "$PWR" = "1500" ]; then
+    PW="1.2000"
+fi
+
+# Mode
+MODE=$4
+MD="24.0"
+echo "Mode: ${MODE}"
+if [ "$MODE" = "FT8" ]; then
+    MD="13.0"
+elif [ "$MODE" = "CW" ]; then
+    MD="24.0"
+elif [ "$MODE" = "SSB" ]; then
+    MD="38.0"
+elif [ "$opt" = "AM" ]; then
+    MD="49.0"
+fi
+
+# Format for 117
+# NOTE: The card requires <SSN>. (117.)
+ssn=`grep "$YEAR $MONTH" ${ET_SSN} | awk '{print $5}' | cut -d"." -f1`
+
+# read more about fine-tuning your input file:
+# http://www.voacap.com/voacapw.html
+# http://www.voacap.com/frequency.html
+
+echo -e "\n"
+
+cat << END | tee $INP
+LINEMAX     999       number of lines-per-page
+COEFFS    CCIR
+TIME          1   24    1    1
+MONTH      $YEAR $MONTH_FMT
+SUNSPOT    $ssn.
+LABEL     $TX$RX
+CIRCUIT  $TLA  $TLO   $RLA  $RLO  S     0
+SYSTEM       1. 155. 3.00  90. $MD 3.00 0.10
+FPROB      1.00 1.00 1.00 0.00
+ANTENNA       1    1    2   30     0.000[samples/sample.00    ]  0.0    $PW
+ANTENNA       2    2    2   30     0.000[samples/sample.00    ]  0.0    0.0000
+FREQUENCY  3.60 5.30 7.1010.1014.1018.1021.1024.9028.20 0.00 0.00
+METHOD       30    0
+BOTLINES      8   12   21
+TOPLINES      1    2    3    4    6
+EXECUTE
+QUIT
+
+END
+
+voacapl -s ~/itshfbc
+echo "voacapl exited with $? using in=$INP and out=$OUT"
+
+(tail -n +27 $OUT | head -n 5 &&  grep -e'-  REL' $OUT && grep -e'-  S DBW' $OUT) | ./rel.pl > ${ET_VOA_REPORT}
+cat ${ET_VOA_REPORT}
diff --git a/overlay/etc/skel/.local/share/emcomm-tools/voacap/fetch-ssn.sh b/overlay/etc/skel/.local/share/emcomm-tools/voacap/fetch-ssn.sh
new file mode 100755
index 0000000..f0b84c9
--- /dev/null
+++ b/overlay/etc/skel/.local/share/emcomm-tools/voacap/fetch-ssn.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# Author  : Gaston Gonzalez
+# Date    : 16 August 2025
+# Purpose : Fetch SSNs for VOACAP prediction
+
+source /opt/emcomm-tools/bin/et-common
+
+FILE="ssn.txt"
+URL="https://www.sidc.be/silso/FORECASTS/prediML.txt"
+curl -s -f -L -o ${FILE} ${URL}
+
+if [[ $? -ne 0 ]]; then
+  echo -e "${RED}Failed to update ${FILE} from: ${URL}."
+  exit 1
+fi
diff --git a/overlay/etc/skel/.local/share/emcomm-tools/voacap/rel.pl b/overlay/etc/skel/.local/share/emcomm-tools/voacap/rel.pl
new file mode 100755
index 0000000..6448585
--- /dev/null
+++ b/overlay/etc/skel/.local/share/emcomm-tools/voacap/rel.pl
@@ -0,0 +1,133 @@
+#!/usr/bin/perl
+# Author: Jari Perkiömäki OH6BG
+# 12 June 2016: initial release
+# 18 June 2016: added Long-Path predictions; use unpack for extracting table data
+# 18 June 2016: added Power, Mode; small improvements
+#
+
+use strict;
+use warnings;
+
+my @relhour  = ();
+my @sdbwhour = ();
+my @co  = ();
+my @mo  = ();
+my @pwr = ();
+my @db = ();
+my $km  = 0;
+my $mi  = 0;
+my $brn = 0;
+my $fh;
+my $voa;
+my $mode;
+my $path = "Short-Path";
+
+# main loop
+open $fh, '>>', \$voa or die $!;
+process ();
+close $fh;
+print $voa;
+exit;
+
+### end ###
+
+sub process {
+    my $format = 'A4 A5 A5 A5 A5 A5 A5 A5 A5 A5';
+    while (<>) {
+
+	    s/^\s+|\s+$//g;
+	    
+	    if ( substr ($_, -1) eq "s" ) { @mo = split /\s+/; }
+	    
+            elsif ( substr ($_, -2) eq "kW" ) { @pwr = split /\s+/; }
+            elsif ( substr ($_, -2) eq "dB" ) {
+             
+            @db = split /\s+/;
+            if ( $db[13] eq "24.0" ) { $mode = "CW"; }
+            elsif ( $db[13] eq "38.0" ) { $mode = "SSB"; }
+            else { $mode = "AM"; }
+            
+            }
+	    
+	    elsif ( /Long/ ) { $path = "Long-Path"; }
+	    
+	    elsif ( substr ($_, -1) =~ /\d/ ) { 
+		
+		    @co = split /\s+/; 
+		    $brn  = sprintf "%d", $co[9] + 0.5; 
+		    $km   = sprintf "%d", $co[12] + 0.5;
+		    $mi   = sprintf "%d", ($co[12] * 0.62137) + 0.5;
+		
+		}
+		
+	    elsif ( substr ($_, -3) eq "REL" ) { push (@relhour, [ unpack( $format, $_ ) ] ); }
+	    elsif ( substr ($_, -3) eq "DBW" ) { push (@sdbwhour,[ unpack( $format, $_ ) ] ); }
+	    
+    } # while 
+    
+    for ($fh) {
+	    print $_ "VOACAP Prediction via $path. $mo[0] $mo[1]: SSN $mo[4] Power = $pwr[$#pwr], $mode\n";
+            print $_ "TX ($co[0]$co[1], $co[2]$co[3]) to RX ($co[5]$co[6], $co[7]$co[8]): $km km, $mi mi, $brn deg\n\n";
+	    print $_ "  | 01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|\n";
+	}
+    
+    foreach my $freq (reverse 1..9) { 
+	    print $fh band($freq) . "|";
+	    foreach my $h (0..23) { print $fh makehourfreq( $h, $freq ); }
+	    print $fh "|" . band($freq) . "\n";
+	}    
+
+    for ($fh) {
+	    print $_ "  | 01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|\n\n";
+	    print $_ "A = 90 - 100%   d = 25 - 49%  * = REL 0%, but Signal Power over Noise\n";
+	    print $_ "B = 75 -  89%   e = 10 - 24%\n";
+	    print $_ "C = 50 -  74%   f =  1 -  9%\n\n";
+	}    
+    
+    @relhour = ();
+    @sdbwhour = ();
+
+    } # process
+
+sub makehourfreq {
+    
+    my $h = $_[0];
+    my $f = $_[1];
+    my $r = $relhour[$h][$f];
+    my $s = $sdbwhour[$h][$f];
+    
+    if ( ($r == 0.00 && $s >= -167) ) {  return " * "; }
+    else { return col($relhour[$h][$f]); }
+    
+    } 
+
+sub band {
+    
+    my $b = $_[0];
+    
+    if ($b == 1) { return "80"; }
+    if ($b == 2) { return "60"; }
+    if ($b == 3) { return "40"; }
+    if ($b == 4) { return "30"; }
+    if ($b == 5) { return "20"; }
+    if ($b == 6) { return "17"; }
+    if ($b == 7) { return "15"; }
+    if ($b == 8) { return "12"; }
+    if ($b == 9) { return "10"; }
+    
+    } 
+
+sub col {
+    
+    my $rel = $_[0]; 
+    
+    if ($rel == 0.00 )                   { return "   "; }
+    elsif ($rel >= 0.01 && $rel < 0.10 ) { return " f "; }
+    elsif ($rel >= 0.10 && $rel < 0.25 ) { return " e "; }
+    elsif ($rel >= 0.25 && $rel < 0.50 ) { return " d "; }
+    elsif ($rel >= 0.50 && $rel < 0.75 ) { return " C "; }
+    elsif ($rel >= 0.75 && $rel < 0.90 ) { return " B "; }
+    elsif ($rel >= 0.90 && $rel < 1.01 ) { return " A "; }
+    else  { return " - "; }
+    
+    } 
\ No newline at end of file
diff --git a/overlay/etc/skel/.local/share/emcomm-tools/voacap/ssn.txt b/overlay/etc/skel/.local/share/emcomm-tools/voacap/ssn.txt
new file mode 100644
index 0000000..d7fd966
--- /dev/null
+++ b/overlay/etc/skel/.local/share/emcomm-tools/voacap/ssn.txt
@@ -0,0 +1,18 @@
+2025 02  2025.122 : 145.4   5.0
+2025 03  2025.204 : 145.5  10.2
+2025 04  2025.286 : 145.0  15.5
+2025 05  2025.371 : 143.1  20.7
+2025 06  2025.453 : 140.9  24.6
+2025 07  2025.538 : 137.3  26.5
+2025 08  2025.623 : 133.1  27.0
+2025 09  2025.705 : 129.4  27.3
+2025 10  2025.790 : 126.1  29.0
+2025 11  2025.873 : 123.2  30.0
+2025 12  2025.958 : 120.8  29.3
+2026 01  2026.042 : 118.0  28.2
+2026 02  2026.122 : 114.6  27.4
+2026 03  2026.204 : 110.4  25.8
+2026 04  2026.286 : 106.1  24.6
+2026 05  2026.371 : 102.1  23.8
+2026 06  2026.453 :  97.8  23.9
+2026 07  2026.538 :  94.0  25.1