Using tx3. send wspr signals using

#!/bin/sh
while true
do

for j in `seq -100 1 100`
do
        for i in $*
        do
                cat data_ve4feb_raw | awk -v freq=$i -v offset=$j -v port=ttyUSB0 -f ./wspr_tx3 > /tmp/wspr
                m=`date '+%M'`
                s=`date '+%S'`
                a=2
                tx_time=`expr $m % $a`
                while test $s -ne 0 -o $tx_time -ne 0
                do
                m=`date '+%M'`
                s=`date '+%S'`
                a=2
                tx_time=`expr $m % $a`
                done
                sleep 1
                date
                sh /tmp/wspr
                date
        done
done



done