Different voltages. Alkaline cells are 1.5 volts. ----- Original Message ----- From: "Anthony Vece" <[log in to unmask]> To: <[log in to unmask]> Sent: Sunday, January 06, 2008 6:02 PM Subject: Re: THF6A Question That's what I thought but what difference does it make where you have the menu setting? ----- Original Message ----- From: "Steve" <[log in to unmask]> To: <[log in to unmask]> Sent: Sunday, January 06, 2008 5:55 PM Subject: THF6A Question > Other is if you are using an alkaline battery instead. > > Don't worry about what people think; they don't do it very often. > > Steve, K8SP > >