Here’s my first nugget of information in my “Amateur Radio” category. More to come during the coming months/years!
The standard for 2 meter repeater offsets is .600Mhz. Usually it’s – (minus) for frequencies below 147.000Mhz and + (plus) for frequencies above 147.000Mhz. 147.000Mhz can be either + or – depending on the repeater.