GMRS channels vs Repeater Channels

[WSFP666]

New to GMRS. I have a midland mtx500 50watt mobile radio repeater capable.

 

I have regular channels and repeater channels. What is the difference between regular channel 16 and RP-16? Just the offset being preprogrammed for the repeater? 

 

[SteveShannon]

@WSFP666 - feel free to add socalgmrs to your ignore list and feel free to ask questions. 

[SteveShannon]

1 minute ago, WSFP666 said:

New to GMRS. I have a midland mtx500 50watt mobile radio repeater capable.

 

I have regular channels and repeater channels. What is the difference between regular channel 16 and RP-16? Just the offset being preprogrammed for the repeater? 

 

Correct. The offset should be automatically added for the repeater channels (RP15 - RP22) and the other channels (1- 22) shouldn’t have any offset. 
Channels 1-7 are limited to 5 watts. 
Channels 8-14 are probably not available to you. 
Channels 15-22 are limited to 50 watts, as are the repeater channels.
 

[kidphc]

16 is simplex.
16r is the repeater, like you said with the offset.

16 simplex and 16r out put are thr same thing.

Sent from my SM-S901U using Tapatalk

[Guest]

Cut and paste...

Ref: https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E/section-95.1767

§ 95.1767 GMRS transmitting power limits.

This section contains transmitting power limits for GMRS stations. The maximum transmitting power depends on which channels are being used and the type of station.

(a) 462/467 MHz main channels. The limits in this paragraph apply to stations transmitting on any of the 462 MHz main channels or any of the 467 MHz main channels. Each GMRS transmitter type must be capable of operating within the allowable power range. GMRS licensees are responsible for ensuring that their GMRS stations operate in compliance with these limits.

(1) The transmitter output power of mobile, repeater and base stations must not exceed 50 Watts.

(2) The transmitter output power of fixed stations must not exceed 15 Watts.

(b) 462 MHz interstitial channels. The effective radiated power (ERP) of mobile, hand-held portable and base stations transmitting on the 462 MHz interstitial channels must not exceed 5 Watts.

(c) 467 MHz interstitial channels. The effective radiated power (ERP) of hand-held portable units transmitting on the 467 MHz interstitial channels must not exceed 0.5 Watt. Each GMRS transmitter type capable of transmitting on these channels must be designed such that the ERP does not exceed 0.5 Watt.

I assume there are "meanings" for the difference between "fixed" stations and "base" stations. More reading to find that... do not worry, I will not post a followup.

50 Watts is not a blanket power allowance.

[WRUU653]

43 minutes ago, WRKW566 said:

I assume there are "meanings" for the difference between "fixed" stations and "base" stations. More reading to find that... do not worry, I will not post a followup

There’s a few old threads you can look up here but basically fixed stations only communicate with other fixed stations and may not exceed 15 watts. An example might be a SCADA system. 
FIXED STATION: A station at a fixed location that communicates directly with other fixed stations only.

[AdmiralCochrane]

Fixed Stations are legacy business data transmission.  Stores relaying inventory info to warehouse/distribution.

[SteveShannon]

18 hours ago, WRUU653 said:

There’s a few old threads you can look up here but basically fixed stations only communicate with other fixed stations and may not exceed 15 watts. An example might be a SCADA system. 
FIXED STATION: A station at a fixed location that communicates directly with other fixed stations only.

 

1 minute ago, AdmiralCochrane said:

Fixed Stations are legacy business data transmission.  Stores relaying inventory info to warehouse/distribution.

Could also be used between two or more family locations, a house and a cabin, etc.

[marcspaz]

1 hour ago, AdmiralCochrane said:

Fixed Stations are legacy business data transmission.  Stores relaying inventory info to warehouse/distribution.

 

1 hour ago, SteveShannon said:

 

Could also be used between two or more family locations, a house and a cabin, etc.

 

Based on the understanding that the radio role is defined by its use (which I know both of you understand) I would think that something like two homes with beam antennas setup to talk exclusively to each other would be a great example of 'fixed stations'.

 

It's important to remember that any radio can be found anywhere in the role/type matrix at any time, by simply changing how it is used in that moment. 

[Socalgmrs]

Sorry to hear about the midland but yes repeater channels are for repeaters yes plus 5 off set and you will need the tones for the repeaters.  If you had looked up the channels in the instructions or online before asking the question you would have learned how to find out information for your self instead of having to ask others to hand feed you.   Also if you had read the information you agreed to when you got you fcc license you would know.