Parameter file:

call_sign
wmonr
TA
RR_12

Output:

wmonr=01507
TA=13.2
RR_12=8.0
wmonr=40255
TA=23.4
RR_12=0.0
call_sign=44097
call_sign=9HXC9
TA=26.0
call_sign=WZA40
wmonr=01245
TA=13.8
RR_12=0.0
...