I have one of these little tranceivers , when i first got it i was
a little dissipointed with the receive sensitivity on various bands
anyway when i connected it to a large outside antenna it was great
so i decided to check out the antenna ( rubber duck ).
and i found that the brass/copper contact that makes the connection
was very tarnished , so i used a very fine grade emery paper to clean
this connection up , and then sprayed it with some switch cleaner
and fisished off using a cotton wool bud , to wipe away any bits of dust
and metal particles . when i re connected it , the radio was so much better ,
things i could not here was booming in.
so just check your' out , like i say mine was receiving but was poor ...
but now its much better .