Batboard

Hello:

Can the UHF SP50+ models (P94YQS) be programmed to GMRS channels? I ask because the channel spacing is different than the SP50-and I am not quite sure what the channel spacing means.

Thanks
BC

Yes the SP50 UHF will do GMRS.

Yes, but can the SP50+ (plus ) models be programmed to GMRS with its channel spacing of 20/25 HHZ?

Thanks
BC

Are you confusing GMRS with the in between FRS splinter channels? GMRS channels use the standard 25 KHz channel spacing.

Sorry-I am not an expert at this stuff. I am not sure what channel spacing means.

I ask the question as my SP50 (P94YQT model, channel spacing 12.5 KHZ) is programmed to GMRS channels 15 and above.

I noticed that the SP50+ models (P94YQS, channel spacing 20/25 KHZ) have a different channel spacing than the SP50.

So, can a radio with the advertised 20/25 KHZ channel spacing be programmed to all the GMRS channels 15 and above?

I think you are referring to Wide band and Narrow band. I believe the SP50 models were available in wide band models OR narrowband models. Newer radios have the ability to program wide or narrow per channel. You can mix and match, have channel 1 wide and channel 2 narrow. SP50's were not this way. The whole radio was either wide OR narrow, NOT selectable on a channel by channel basis.

Currently GMRS is Wide band and takes 25KHz of bandwidth. You should use wide band operations until the switchover, which I believe will be the same date as the commercial switchover. Dec 31, 2010 is the last day commercial licenses will be able to transmit wideband. Someone correct me if I am wrong about the GMRS switchover.

If you have a narrowband configured radio transmitting to a wideband configured radio, your transmissions will be 1/2 as loud as someone transmitting wideband. If someone else is transmitting wideband to a receiver configured for narrowband they will sound over modulated and parts of their audio may be clipped off my the filtering in the narrowband radio. So basically every radio on the frequency should be all wideband or all narrowband to communicate properly.