Questions regarding station class FB2 and MO

[NA230]

If I'm correct the 4 frequencies listed in "here" 2 of the frequencies are input and the other 2 are outputs. As far as I know the frequencies with the MO class are outputs but I'm trying to determine which frequency is for the other. I speculate that 464.9625 is the input for one and 469.9625 is the output, and same goes for the other 2 frequencies left. Would someone confirm if I'm right or correct? If I'm wrong would someone explain? Thanks.

 

[u2brent]

These should steer you in the right direction
FB is an output
MO would be a mobile or input

FCC Station Class Codes - The RadioReference Wiki

wiki.radioreference.com

Emission Designator - The RadioReference Wiki

wiki.radioreference.com

FCC Radio Service Codes - The RadioReference Wiki

wiki.radioreference.com

 

[kruser]

The FB2s are the Repeater Outputs while the MO are the mobiles transmitting on the repeater inputs.

For standard 450 to 470 MHz UHF repeaters, the standard split between input and output is 5 MHz. The repeater Output is almost always the lower frequency of the pair when used between 450 and 470 MHz.
I think the T band above 470 may use a different split.

Exceptions are made but it is not really common. There is a TV Broadcast station here that reversed their repeater and uses 455.xxx MHz for it's output and the 450.xxx frequency is the input. I don't know why they did this but I've heard some users do it to mitigate desense or other interference issues. Their FCC license should show they are operating in reverse though if they did it legally.

 

[dlwtrunked]

The FB2s are the Repeater Outputs while the MO are the mobiles transmitting on the repeater inputs.

In simpler terms, it had it backwards.

 

[NA230]

So if I use the MO class frequencies on my Baofeng UV-5R I would be able to transmit and receive correct?

 

[mmckenna]

So if I use the MO class frequencies on my Baofeng UV-5R I would be able to transmit and receive correct?

Read disclaimer at the bottom, but….
You would set up your radio with the transmit frequency to be the MO and the receive frequency to be the FB2.
You'll need to set the PL or DPL squelch correctly on at least the transmit frequency.

As for the disclaimer….
Unless your name is Laura Mason, you as a student, employee, neighbor, volunteer, amateur radio operator, scanner listener, radio owner, etc. have ZERO authority to transmit on their frequencies. The FCC is very clear on this. The licensee,
--Charlotte Mecklenburg Schools Olympic High School and specifically, Laura Mason (shown as the licensee on the FCC license)--
is the ONLY one who can authorize adding radios to their system. Transmitting on their frequencies, even in an emergency, urgent matter, testing, or otherwise, would be against FCC rules unless you are specifically licensed for those frequencies at that location or have specific authorization from the licensee.
I'm NOT the radio police, and I really don't care what you do. But since you are a new member with a low end Chinese radio, we assume that you probably are not aware of the FCC rules and how they apply in situations like this. What you chose to do or not do is entirely up to you.

 

[mmckenna]

So if I use the MO class frequencies on my Baofeng UV-5R I would be able to transmit and receive correct?

I dug a bit deeper.

From what I can find, (someone correct me if I'm wrong) The Baofeng UV-5R does not have the required FCC Part 90 certifications to be legal on those frequencies. So, even if you did get permission from the licensee, it would not be legal to use a non-type accepted radio on their system. You would be transmitting without a license and with a non-type accepted radio. The licensee, if they granted you permission, would be allowing a non-type accepted radio under their license.

So, legally, the short answer is NO. Yeah, it can be programmed to do that, but it would not be legal under FCC rules.

Please don't.