Asked the maker for upgrading, repair.Came home after three weeks.
I pointed out malfunction.It was repaired.
Be poor in the contact of the speaker As for the countermeasure, be changed the electrode
Be not cut off As for the countermeasure, be changed the electrode
As a result of check in other makers Seemed to be able to confirm the following malfunction, too. A sensitivity decline of 144MHZ, the damage of the reception element Cope by a countermeasure, exchange.
electric wave by proximity according to the maker.Surely remember that I transmitted 50W by proximity.It is unknown whether it is a cause.
About the upgrading, a smart beacon is good.I went for a drive.A trace of APRS came to appear neatly.Preferably think that the maker wanted you to equip with this function from the beginning.