I have a Wouxun KG-UV9GX and Tuning Step question

[CyborgAlienBariaur]

My question is, I'm reprogramming it using ChirpNext, I notice a long list of options in that area and was curious what I use for MURS and NOAA for that? I kinda figured out that 12.5/20kHz was the steps for GMRS but, I don't know what the rest should be. Does it matter if we're defining WFM, FM, and NFM? I'm relatively new to Amature radio and having a tuff time of finding this information anywhere even on GMRS/MURS/NOAA sites.

 

[nd5y]

If you are programming memory channels you don't need tuning steps.
Bandwith makes a difference but really has no relation to tuning steps.
The GMRS channels are all 12.5 kHz steps and adjacent to eachother but are allowed up to 20 kHz bandwith (FM) on most channels.
FRS shares the GMRS channels but is restricted to 12.5 kHz bandwidth (NFM).

Other parts of the spectrum have different channel spacing and bandwidth rules. There is no simple rule for everything, except if the bandwidth is wider than the channel spacing the channels will overlap and you can have interference from adjacent channels unless you have frequency or geographic spacing.

 

[CyborgAlienBariaur]

The GMRS channels are all 12.5 kHz steps and adjacent to eachother but are allowed up to 20 kHz bandwith (FM) on most channels.
FRS shares the GMRS channels but is restricted to 12.5 kHz bandwidth (NFM).

Thanks for the information, it's exactly what I needed to know.

 

[ramal121]

The GMRS channels are all 12.5 kHz steps

GMRS channels are 25 kHz wide and a 25 kHz step works just fine. It's only the in-between FRS channels that need the step dialed back to
12.5 kHz to land on them (I'm just being anal, no offence).