CTCSS/DCS tones on different brands of radios

[Lambing]

I have a pair of Midland GXT 1000 radios and a Radioddity GM-30. They can communicate on channels 1-22 if I do not use a CTCSS or DCS tone.

If I enter either a CTCSS or DCS tone, the 2 Midlands can communicate, but not the GM-30. I am using the CTCSS and DCS charts in the GM-30 manual, so the frequencies should be correct.

Any idea what I am doing wrong?

 

[tweiss3]

The midlands are narrowband (11k vs wideband 20k), you need to turn the GM-30 to narrowband.

[Lambing]

46 minutes ago, tweiss3 said:

The midlands are narrowband (11k vs wideband 20k), you need to turn the GM-30 to narrowband.

Thank you - that solved half the problem. When the Midland transmits, I can receive on the Radioddity.

But the Midland does not hear the Radioddity.

[BKmetzWRKZ843]

I have a couple of Motorola bubble-pack Talk-Abouts that I bought back in 2009 for a road trip. Back then I didn't know what FRS and GMRS was. After the road trip the radios were put away and forgotten. I found them, looked up the manual online, and relearned the menus. The radios have 99 privacy tones. OK, so what are the tones? I googled around and found this table, easy enough. The Talk-Abouts are on channel 5 using tone 12, which translates to CTCSS 100.0. So now all my GMRS radios can talk to each other.

I hope this helps someone.

[pcradio]

On 9/24/2021 at 1:40 PM, Lambing said:

When the Midland transmits, I can receive on the Radioddity. But the Midland does not hear the Radioddity.

The Midland is setup to only hear a privacy tone. You'll need to set it to 0, or match it on the GM-30.