Repeater offset?

[Astrak]

What does a - or + sign mean on Ham radio repeaters is that the offset and if it is what is the offset of those?

 

[W0JJK]

Yes that is the offset of the repeaters.

"-" means the the input is lower than the output of the repeater. For example if the output is 145.235 with the "-" means the input to the repater will be 144.635

"+" means the input is the higher than the output of the repeater
so 147.06 with a "+" means the input to the repeater will be 147.66

Most 2 meter(144 Mhz) offsets are 600 Khz and the UHF offsets are 5 Mhz.

KC0LOD

 

[Astrak]

Thank you Kc0lod and a question for you are you from Lincoln NE?

 

[W0JJK]

No. I am in the Omaha Metro area.


KC0LOD

 

[Astrak]

Ok................

 

[Hoofy]

Astrack, as a rule of thumb the 2 meter repeaters in the 145. and 146. portion are almost always a negative offset and the 147. portion are usually the plus offsets.

 

[nexus]

as an add-on, and the UHF amateur band is all + offset.

 

[nd5y]

as an add-on, and the UHF amateur band is all + offset.

Not everywhere. Some areas have -5 MHz offset and other countries have different offsets.

 

[n4voxgill]

in the United States where do they use -5 MHz off sets for UHF amateur repeaters?

 

[nexus]

I was only refering to the US Amateur bandplan.

 

[W0JJK]

Colorado uses "-" inputs on their UHF machines.

KC0LOD

 

[nd5y]

Also some parts of CA, AZ, NV, NM, MD, NJ, NY, MA, CT and probably more that I don't know about use - offsets.
Some places even have + and - repeaters in the same area.

 

[Astrak]

Yea here in Tucson some of them have - offset

 

[nexus]

I learn something new every day... heh thanks.

 

[kb2vxa]

Don't forget that many 2M repeaters use a 1MHz offset.

 

[Al42]

Don't forget that many 2M repeaters use a 1MHz offset.

Many? How many is many?

 

[kb2vxa]

Cummon Al, you should have the lists and the ability to count. (;->)