Radio Channels
These channels are based on Ken's programing of a UV-5G radio. For example, a keypad entry
of "038" will tune the radio to our Summit Repeater Channel. "041" for the Murphys Repeater.
Channel | Name | Community | Frequency | Duplex | Offset | Mode |
032 | 15GROVE | Groveland | 462.5500 | + | 5 | Tone |
033 | 16CEDAR | Cedar Ridge | 462.5750 | + | 5 | Tone |
034 | REPTR3 | | 462.6000 | + | 5 | |
035 | REPTR4 | | 462.6250 | + | 5 | |
036 | REPTR5 | | 462.6500 | + | 5 | |
037 | 20-13 | ERSN Simplex | 462.6750 | off | | Tone |
038 | 20-13R | ERSN Summit Repeater | 462.6750 | + | 5 | Tone |
039 | 20-13RD | ERSN Summit w/tone decode | 462.6750 | + | 5 | TSQL |
040 | 20-22R | (Future) | 462.6750 | + | 5 | Tone |
041 | 20-27R | ERSN Murphys | 462.6750 | + | 5 | Tone |
042 | 20-REV | Reverse 20R | 467.6750 | - | 5 | |
043 | 21COLUM | Columbia | 462.7000 | + | 5 | Tone |
044 | 22DUCKW | Tuolumne Duckwall Peak | 462.7250 | + | 5 | Tone |
046 | CARS | Calaveras Amateur Fowler Peak | 145.1700 | - | 0.6 | Tone |
047 | SUMMIT | Calaveras Amateur Summit | 441.8750 | + | 5 | Tone |
048 | CALFIR | TCU Fire Dispatch | 151.1750 | off | | |
049 | CALCMD | Calaveras Fire Command | 151.6625 | off | | |
050 | CALTAC | Fire Tactical | 153.8150 | off | | |
051 | CCSAR-D | Claveras SAR | 155.5200 | off | | |
052 | SO BLUE | Cal Sheriff Dispatch | 151.0100 | off | | |
053 | SO FOWL | Cal Sheriff Dispatch | 151.0400 | off | | |
054 | CC ROAD | Calaveras Roads | 151.0250 | off | | |
055 | CALCM5 | Cal Fire Command Tone 5 | 151.6625 | off | | |
056 | CDF AG1 | CDF Air/Ground | 151.2200 | off | | |
057 | CAL TAC | Fire Tactical | 153.8150 | off | | |
058 | TAC 2 | Fire Tactical | 151.1600 | off | | |
059 | TAC 5 | Fire Tactical | 151.2500 | off | | |
060 | TAC 8 | Fire Tactical | 151.3700 | off | | |
061 | NIFC T2 | Fire Tactical | 168.2000 | off | | |
062 | R5A/G41 | Fire Tactical | 167.4750 | off | | |
063 | VFIRE22 | Fire Tactical | 154.2650 | off | | |
064 | VFIRE23 | Fire Tactical | 154.2950 | off | | |
065 | VFIRE26 | Fire Tactical | 154.3025 | off | | |
066 | TLUCM3 | Tuolumne Fire Command | 151.1300 | off | | |
067 | CM2T8 | Fire Command 2 | 151.2650 | off | | |
068 | AMB T1 | Ambulance | 462.9500 | off | | |
069 | AMB T7 | Ambulance | 462.9500 | off | | |
070 | AMB T8 | Ambulance | 462.9500 | off | | |
071 | STFT8 | STF | 170.5000 | off | | |
072 | YNP FIR | Yosemite | 172.7750 | off | | |
032 - 15GROVE
Community:
Groveland
Frequency:
462.5500
Duplex:
+
Offset:
5
Mode:
Request Tone
033 - 16CEDAR
Community:
Cedar Ridge
Frequency:
462.5750
Duplex:
+
Offset:
5
Mode:
Request Tone
034 - REPTR3
Community:
Frequency:
462.6000
Duplex:
+
Offset:
5
Mode:
035 - REPTR4
Community:
Frequency:
462.6250
Duplex:
+
Offset:
5
Mode:
036 - REPTR5
Community:
Frequency:
462.6500
Duplex:
+
Offset:
5
Mode:
037 - 20-13
Community:
ERSN Simplex
Frequency:
462.6750
Duplex:
off
Offset:
Mode:
Request Tone
038 - 20-13R
Community:
ERSN Summit Repeater
Frequency:
462.6750
Duplex:
+
Offset:
5
Mode:
Request Tone
039 - 20-13RD
Community:
ERSN Summit w/tone decode
Frequency:
462.6750
Duplex:
+
Offset:
5
Mode:
Request TSQL
040 - 20-22R
Community:
(Future)
Frequency:
462.6750
Duplex:
+
Offset:
5
Mode:
Request Tone
041 - 20-27R
Community:
ERSN Murphys
Frequency:
462.6750
Duplex:
+
Offset:
5
Mode:
Request Tone
042 - 20-REV
Community:
Reverse 20R
Frequency:
467.6750
Duplex:
-
Offset:
5
Mode:
043 - 21COLUM
Community:
Columbia
Frequency:
462.7000
Duplex:
+
Offset:
5
Mode:
Request Tone
044 - 22DUCKW
Community:
Tuolumne Duckwall Peak
Frequency:
462.7250
Duplex:
+
Offset:
5
Mode:
Request Tone
046 - CARS
Community:
Calaveras Amateur Fowler Peak
Frequency:
145.1700
Duplex:
-
Offset:
0.6
Mode:
Request Tone
047 - SUMMIT
Community:
Calaveras Amateur Summit
Frequency:
441.8750
Duplex:
+
Offset:
5
Mode:
Request Tone
048 - CALFIR
Community:
TCU Fire Dispatch
Frequency:
151.1750
Duplex:
off
Offset:
Mode:
049 - CALCMD
Community:
Calaveras Fire Command
Frequency:
151.6625
Duplex:
off
Offset:
Mode:
050 - CALTAC
Community:
Fire Tactical
Frequency:
153.8150
Duplex:
off
Offset:
Mode:
051 - CCSAR-D
Community:
Claveras SAR
Frequency:
155.5200
Duplex:
off
Offset:
Mode:
052 - SO BLUE
Community:
Cal Sheriff Dispatch
Frequency:
151.0100
Duplex:
off
Offset:
Mode:
053 - SO FOWL
Community:
Cal Sheriff Dispatch
Frequency:
151.0400
Duplex:
off
Offset:
Mode:
054 - CC ROAD
Community:
Calaveras Roads
Frequency:
151.0250
Duplex:
off
Offset:
Mode:
055 - CALCM5
Community:
Cal Fire Command Tone 5
Frequency:
151.6625
Duplex:
off
Offset:
Mode:
056 - CDF AG1
Community:
CDF Air/Ground
Frequency:
151.2200
Duplex:
off
Offset:
Mode:
057 - CAL TAC
Community:
Fire Tactical
Frequency:
153.8150
Duplex:
off
Offset:
Mode:
058 - TAC 2
Community:
Fire Tactical
Frequency:
151.1600
Duplex:
off
Offset:
Mode:
059 - TAC 5
Community:
Fire Tactical
Frequency:
151.2500
Duplex:
off
Offset:
Mode:
060 - TAC 8
Community:
Fire Tactical
Frequency:
151.3700
Duplex:
off
Offset:
Mode:
061 - NIFC T2
Community:
Fire Tactical
Frequency:
168.2000
Duplex:
off
Offset:
Mode:
062 - R5A/G41
Community:
Fire Tactical
Frequency:
167.4750
Duplex:
off
Offset:
Mode:
063 - VFIRE22
Community:
Fire Tactical
Frequency:
154.2650
Duplex:
off
Offset:
Mode:
064 - VFIRE23
Community:
Fire Tactical
Frequency:
154.2950
Duplex:
off
Offset:
Mode:
065 - VFIRE26
Community:
Fire Tactical
Frequency:
154.3025
Duplex:
off
Offset:
Mode:
066 - TLUCM3
Community:
Tuolumne Fire Command
Frequency:
151.1300
Duplex:
off
Offset:
Mode:
067 - CM2T8
Community:
Fire Command 2
Frequency:
151.2650
Duplex:
off
Offset:
Mode:
068 - AMB T1
Community:
Ambulance
Frequency:
462.9500
Duplex:
off
Offset:
Mode:
069 - AMB T7
Community:
Ambulance
Frequency:
462.9500
Duplex:
off
Offset:
Mode:
070 - AMB T8
Community:
Ambulance
Frequency:
462.9500
Duplex:
off
Offset:
Mode:
071 - STFT8
Community:
STF
Frequency:
170.5000
Duplex:
off
Offset:
Mode:
072 - YNP FIR
Community:
Yosemite
Frequency:
172.7750
Duplex:
off
Offset:
Mode:
Understanding the Frequencies
The channels in this list operate across several different radio frequency bands, each
serving specific purposes:
- GMRS (462-467 MHz): General Mobile Radio Service channels. These require
an FCC license and are how ERSN communicates. For channels with a mode of Tone or TSQL
listed, you will need to request access to the tone from the repeater owner. Please email ersnnets@gmail.com for access to the ERSN repeaters.
- Amateur Radio (144-148 MHz and 420-450 MHz): Also known as "ham radio"
bands. Channels CARS (145.170) and SUMMIT (441.875) fall in these ranges and require an
amateur radio license to transmit.
- Public Safety (151-155 MHz): Used by fire, police, and emergency
services. These frequencies are for monitoring only - transmitting on these frequencies is
restricted to authorized agencies. Note that the VHF band they operate in is shared with
other services like MURS and Business Band frequencies, which operate on different
specific frequencies within this range.
- Federal (167-172 MHz): Used by federal agencies including forest service
and park service. These frequencies are also for monitoring only.
About Offsets and Tones:
- Duplex Offset: When you see "+ 5.0" or similar, this means the radio
transmits 5 MHz higher than the receive frequency. This is common for repeater systems.
- Tone: When "Tone" is listed, it means the channel requires a specific
tone to access a repeater. Think of it like a password that helps prevent interference
between different groups using the same frequency.
Remember: While anyone can listen to these frequencies, transmitting requires appropriate
licensing and authorization depending on the service. Always ensure you have proper
licensing before transmitting.
Understanding Tone vs TSQL
Tone Mode (CTCSS Encode)
-
When a channel is set to "Tone", your radio only adds a tone when transmitting
-
Your radio will receive all transmissions on that frequency, whether they have a tone or
not
-
This is most commonly used for accessing repeaters, which require a specific tone to
activate
-
Think of it like adding a "key" when you transmit, but leaving your "door" open to all
incoming signals
TSQL Mode (CTCSS Encode/Decode)
- TSQL stands for "Tone Squelch" and works in both directions
-
Your radio adds the tone when transmitting (like regular Tone mode)
-
Your radio only lets you hear transmissions that include the matching tone
-
This filters out other users who might be using the same frequency with different tones
-
Think of it like having a matching key and lock - you need the right tone to both transmit
and receive