On Radioddity GM-30, what is the purpose of tone settings on a repeater frequency (ex: 467.675) in VFO mode?

[WRXI329]

Using Radioddity GM-30.

On a GMRS repeater Ch 6:   Rx 462.675 / Tx 467.675,   it is obvious what the  CTCSS and DCS do.

Tx tone is for transmitting to repeater on 467.675.  Rx is for receiving on 462.675

What is use of setting an Rx tone on 467.675 in the VFO mode?  Is it to receive transmissions intended for a repeater?

What is use of setting an Tx tone on 467.675 in the VFO mode, since the radio can't transmit in VFO mode? Or does it set the Tx tone when in channel mode on Ch6?

[OffRoaderX]

These are vestigial settings left-over from being a ham radio. Most GMRS radios are not designed as GMRS radios from the ground-up. Instead, they are repurposed ham-radios, and usually a lot gets lost (or remains) in the translation.

Look through the menus of most of these radios and you will find options that make no sense on a GMRS radio, they do nothing, or, both.

[WRWE456]

Which is really helpful for new GMRS users trying to learn.

[WSAM454]

On 3/28/2024 at 11:47 PM, WRXI329 said:

Using Radioddity GM-30.

On a GMRS repeater Ch 6:   Rx 462.675 / Tx 467.675,   it is obvious what the  CTCSS and DCS do.

Tx tone is for transmitting to repeater on 467.675.  Rx is for receiving on 462.675

What is use of setting an Rx tone on 467.675 in the VFO mode?  Is it to receive transmissions intended for a repeater?

What is use of setting an Tx tone on 467.675 in the VFO mode, since the radio can't transmit in VFO mode? Or does it set the Tx tone when in channel mode on Ch6?

Yes, you can opt to just receive a repeater using a its freq on VFO mode.   You may want to have the rig remain quiet until the repeater transmits; nothing to do with "ham radio leftovers,"  actually more likely commercial/business user leftovers, since many businesses shared a freq and the other users did not want to listen to constant chatter that did not concern their business!   

Also, you might want to use the VFO to set up a simplex  frequency to communicate with another user, but only want to hear from that user, so again, it keeps the receiver quiet until the desired signal comes through.   It may be easier to set up a memory channel for this, but it is not necessary, and actually to set up a memory channel manually, you usually have to set up all the parameters using the VFO mode before saving that info into a memory channel.