[chirp_devel] [PATCH] [frs/gmrs] 2017 rule changes Fixes #5753
# HG changeset patch # User Andrew Jorgensen andrew@jorgensenfamily.us # Date 1575136551 28800 # Sat Nov 30 09:55:51 2019 -0800 # Node ID 9f35d22fa86ee7a576b338ce4d0deb3d9ed8d3d5 # Parent c9c97668945488ab558494b0ed8b05403a1b4f2e [frs/gmrs] 2017 rule changes Fixes #5753
This adds the additional FRS channels (15-22) and expands on the GMRS channels to include updated bandwidth (though there's no way to specify 20kHz vs 25kHz). It also adds the GMRS repeater channels with the prescribed +5.0MHz offset (though you'll have to find the correct tones for your local GMRS repeaters).
diff --git a/stock_configs/US FRS and GMRS Channels.csv b/stock_configs/US FRS and GMRS Channels.csv --- a/stock_configs/US FRS and GMRS Channels.csv +++ b/stock_configs/US FRS and GMRS Channels.csv @@ -1,23 +1,46 @@ Location,Name,Frequency,Duplex,Offset,Tone,rToneFreq,cToneFreq,DtcsCode,DtcsPolarity,Mode,TStep,Skip,Comment,URCALL,RPT1CALL,RPT2CALL -1,FRS1,462.562500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -2,FRS2,462.587500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -3,FRS3,462.612500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -4,FRS4,462.637500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -5,FRS5,462.662500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -6,FRS6,462.687500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -7,FRS7,462.712500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -8,FRS8,467.562500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -9,FRS9,467.587500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -10,FRS10,467.612500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -11,FRS11,467.637500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -12,FRS12,467.662500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -13,FRS13,467.687500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -14,FRS14,467.712500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, -15,GMRS1,462.550000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -16,GMRS2,462.575000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -17,GMRS3,462.600000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -18,GMRS4,462.625000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -19,GMRS5,462.650000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -20,GMRS6,462.675000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -21,GMRS7,462.700000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, -22,GMRS8,462.725000,,5.000000,,88.5,88.5,023,NN,FM,25.00,,,,, +1,FRS 1,462.562500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +2,FRS 2,462.587500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +3,FRS 3,462.612500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +4,FRS 4,462.637500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +5,FRS 5,462.662500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +6,FRS 6,462.687500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +7,FRS 7,462.712500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +8,FRS 8,467.562500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +9,FRS 9,467.587500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +10,FRS 10,467.612500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +11,FRS 11,467.637500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +12,FRS 12,467.662500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +13,FRS 13,467.687500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +14,FRS 14,467.712500,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +15,FRS 15,462.550000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +16,FRS 16,462.575000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +17,FRS 17,462.600000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +18,FRS 18,462.625000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +19,FRS 19,462.650000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +20,FRS 20,462.675000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +21,FRS 21,462.700000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +22,FRS 22,462.725000,,5.000000,,88.5,88.5,023,NN,NFM,12.50,,,,, +23,GMRS 1,462.550000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +24,GMRS 2,462.575000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +25,GMRS 3,462.600000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +26,GMRS 4,462.625000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +27,GMRS 5,462.650000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +28,GMRS 6,462.675000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +29,GMRS 7,462.700000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +30,GMRS 8,462.725000,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +31,GMRS 9,462.562500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +32,GMRS 10,462.587500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +33,GMRS 11,462.612500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +34,GMRS 12,462.637500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +35,GMRS 13,462.662500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +36,GMRS 14,462.687500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +37,GMRS 15,462.712500,,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +38,GMRS 550,462.550000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +39,GMRS 575,462.575000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +40,GMRS 600,462.600000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +41,GMRS 625,462.625000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +42,GMRS 650,462.650000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +43,GMRS 675,462.675000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +44,GMRS 700,462.700000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,, +45,GMRS 725,462.725000,+,5.000000,,88.5,88.5,023,NN,FM,12.50,,,,,
Hi Andrew,
On Mon, Dec 2, 2019 at 8:36 PM Andrew Jorgensen via chirp_devel chirp_devel@intrepid.danplanet.com wrote:
# HG changeset patch # User Andrew Jorgensen andrew@jorgensenfamily.us # Date 1575136551 28800 # Sat Nov 30 09:55:51 2019 -0800 # Node ID 9f35d22fa86ee7a576b338ce4d0deb3d9ed8d3d5 # Parent c9c97668945488ab558494b0ed8b05403a1b4f2e [frs/gmrs] 2017 rule changes Fixes #5753
This adds the additional FRS channels (15-22) and expands on the GMRS channels to include updated bandwidth (though there's no way to specify 20kHz vs 25kHz). It also adds the GMRS repeater channels with the prescribed +5.0MHz offset (though you'll have to find the correct tones for your local GMRS repeaters).
This doesn't seem correct to me. FRS and GMRS both have 22 channels now (plus 8 of the GMRS channels can be used as repeater channels). The GMRS radio manufacturers are using the same channel numbering scheme as specified by the FCC for the FRS channels. So GMRS 1 through GMRS 22 would be a duplication of the 22 FRS channels plus the addition of the 8 GMRS repeaters channels making 30 total GMRS channels. The BTech GMRS-V1 is this way. The Midland GTX1000/1030/etc. series is this way (except it doesn't support repeaters). The only difference, not counting the repeater support, is that all FRS channels are narrow band but GMRS channels 15 - 22 can still use wide.
Jim KC9HI
Thanks Jim!
I was using https://wiki.radioreference.com/index.php/FRS/GMRS_combined_channel_chart#Ol... as a reference, figuring that if GMRS channel numbers matter, it would be the old channel numbers that would matter.
I have a GMRS-V1, which I've just now factory reset to confirm, and you're correct that it numbers the channels per the FRS scheme, though it omits 8-14. I don't have any other GMRS radios to compare with, but I do see that Midland[0] is currently numbering the GMRS channels same as FRS. Most of the Motorola manuals I've found don't list 8-14 as being GMRS channels at all, including those that support repeater operation.
I found some other references[1] to the older scheme, where FRS 1 is the same as GMRS 9. And the data I'm replacing here has FRS 1 on 462.5625 and GMRS 1 on 462.55. The FCC does not prescribe any numbering scheme for GMRS.
Overall I'm finding myself persuaded that having them numbered same as FRS makes the most sense today, and seems to be the way the industry is going. It's unfortunate that it doesn't match what was done before the changes, but seems correct.
I'll fix it and send the revised patch this week.
Do you have a strong opinion on channels 8-14? They have the same power limits and bandwidth as on FRS (I see my mistake in the patch I sent and will correct) so they are not in any way different from the GMRS channels. I'm inclined to just not enumerate GMRS 8-14, but could be persuaded otherwise.
[0] https://midlandusa.com/why-gmrs-for-two-way-radio-communication/ [1] https://www.techwholesale.com/talkfreq.html
On Mon, Dec 2, 2019 at 6:31 PM Jim Unroe rock.unroe@gmail.com wrote:
Hi Andrew,
On Mon, Dec 2, 2019 at 8:36 PM Andrew Jorgensen via chirp_devel chirp_devel@intrepid.danplanet.com wrote:
# HG changeset patch # User Andrew Jorgensen andrew@jorgensenfamily.us # Date 1575136551 28800 # Sat Nov 30 09:55:51 2019 -0800 # Node ID 9f35d22fa86ee7a576b338ce4d0deb3d9ed8d3d5 # Parent c9c97668945488ab558494b0ed8b05403a1b4f2e [frs/gmrs] 2017 rule changes Fixes #5753
This adds the additional FRS channels (15-22) and expands on the GMRS channels to include updated bandwidth (though there's no way to specify 20kHz vs 25kHz). It also adds the GMRS repeater channels with the prescribed +5.0MHz offset (though you'll have to find the correct tones for your local GMRS repeaters).
This doesn't seem correct to me. FRS and GMRS both have 22 channels now (plus 8 of the GMRS channels can be used as repeater channels). The GMRS radio manufacturers are using the same channel numbering scheme as specified by the FCC for the FRS channels. So GMRS 1 through GMRS 22 would be a duplication of the 22 FRS channels plus the addition of the 8 GMRS repeaters channels making 30 total GMRS channels. The BTech GMRS-V1 is this way. The Midland GTX1000/1030/etc. series is this way (except it doesn't support repeaters). The only difference, not counting the repeater support, is that all FRS channels are narrow band but GMRS channels 15 - 22 can still use wide.
Jim KC9HI
Jim, Do you (or others) have an opinion on repeater channel naming?
From MyGMRS it looks like the "550" naming is more common than
Midland-style "15RP" naming, but it's handy to know that 550 and 15 have the same RX frequency. Or I could do "GMRS 550/15RP".
And as long as we're choosing the color of the bikeshed, I do see an advantage in omitting the space, which is that radios with only 7 character displays can correctly show "GMRS550" or "GMRS15R".
On Mon, Dec 2, 2019 at 7:44 PM Andrew Jorgensen andrew@jorgensenfamily.us wrote:
Thanks Jim!
I was using https://wiki.radioreference.com/index.php/FRS/GMRS_combined_channel_chart#Ol... as a reference, figuring that if GMRS channel numbers matter, it would be the old channel numbers that would matter.
I have a GMRS-V1, which I've just now factory reset to confirm, and you're correct that it numbers the channels per the FRS scheme, though it omits 8-14. I don't have any other GMRS radios to compare with, but I do see that Midland[0] is currently numbering the GMRS channels same as FRS. Most of the Motorola manuals I've found don't list 8-14 as being GMRS channels at all, including those that support repeater operation.
I found some other references[1] to the older scheme, where FRS 1 is the same as GMRS 9. And the data I'm replacing here has FRS 1 on 462.5625 and GMRS 1 on 462.55. The FCC does not prescribe any numbering scheme for GMRS.
Overall I'm finding myself persuaded that having them numbered same as FRS makes the most sense today, and seems to be the way the industry is going. It's unfortunate that it doesn't match what was done before the changes, but seems correct.
I'll fix it and send the revised patch this week.
Do you have a strong opinion on channels 8-14? They have the same power limits and bandwidth as on FRS (I see my mistake in the patch I sent and will correct) so they are not in any way different from the GMRS channels. I'm inclined to just not enumerate GMRS 8-14, but could be persuaded otherwise.
[0] https://midlandusa.com/why-gmrs-for-two-way-radio-communication/ [1] https://www.techwholesale.com/talkfreq.html
On Mon, Dec 2, 2019 at 6:31 PM Jim Unroe rock.unroe@gmail.com wrote:
Hi Andrew,
On Mon, Dec 2, 2019 at 8:36 PM Andrew Jorgensen via chirp_devel chirp_devel@intrepid.danplanet.com wrote:
# HG changeset patch # User Andrew Jorgensen andrew@jorgensenfamily.us # Date 1575136551 28800 # Sat Nov 30 09:55:51 2019 -0800 # Node ID 9f35d22fa86ee7a576b338ce4d0deb3d9ed8d3d5 # Parent c9c97668945488ab558494b0ed8b05403a1b4f2e [frs/gmrs] 2017 rule changes Fixes #5753
This adds the additional FRS channels (15-22) and expands on the GMRS channels to include updated bandwidth (though there's no way to specify 20kHz vs 25kHz). It also adds the GMRS repeater channels with the prescribed +5.0MHz offset (though you'll have to find the correct tones for your local GMRS repeaters).
This doesn't seem correct to me. FRS and GMRS both have 22 channels now (plus 8 of the GMRS channels can be used as repeater channels). The GMRS radio manufacturers are using the same channel numbering scheme as specified by the FCC for the FRS channels. So GMRS 1 through GMRS 22 would be a duplication of the 22 FRS channels plus the addition of the 8 GMRS repeaters channels making 30 total GMRS channels. The BTech GMRS-V1 is this way. The Midland GTX1000/1030/etc. series is this way (except it doesn't support repeaters). The only difference, not counting the repeater support, is that all FRS channels are narrow band but GMRS channels 15 - 22 can still use wide.
Jim KC9HI
participants (2)
-
Andrew Jorgensen -
Jim Unroe