Parameter file:
<file>
call_sign
wmonr
TA
RR_12
</file>

Output:
<file>
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

...

</file>