Motorola GR1225 cooling fan upgrade

[dana13898]

I read in a post that GR 1225 radios used as a repeater, should be set to 25 watts to prevent overheating. Someone suggested installing a better cooling blowing outwards.

Can I get a recommendation on the make-model of such fan and where to purchase please?

My radio in currently set at 45 watts and the fan is on the thermostat setting. It occasionally comes on while the radio is idle.

The repeater is only use occasionally by me and my wife for brief chats.

The radio is connected by 75’ of LMR 400 to an Omni directional 9db gain antenna. GMRS usage.

That will change soon to a ridged coax when I move the antenna to a Rohn 40’ tower.

Thanks

 

[prcguy]

I read in a post that GR 1225 radios used as a repeater, should be set to 25 watts to prevent overheating. Someone suggested installing a better cooling blowing outwards.

Can I get a recommendation on the make-model of such fan and where to purchase please?

My radio in currently set at 45 watts and the fan is on the thermostat setting. It occasionally comes on while the radio is idle.

The repeater is only use occasionally by me and my wife for brief chats.

The radio is connected by 75’ of LMR 400 to an Omni directional 9db gain antenna. GMRS usage.

That will change soon to a ridged coax when I move the antenna to a Rohn 40’ tower.

Thanks

What size is the fan? Loose the LMR cable, not good for full duplex systems.

 

[Project25_MASTR]

Are you using a GR1225 or a pair of M1225's?

 

[dana13898]

What size is the fan? Loose the LMR cable, not good for full duplex systems.

I believe the fan inside the GR1225 is stock. I’d have to disassemble to measure.
I agree with the LMR upgrade. That’s in the planing stage too.
I gathering final pieces to set up a 40’ Rohn tower. I will run solid core coax then. Thank you.

 

[dana13898]

Are you using a GR1225 or a pair of M1225's?

It is an actual GR 1225 base station repeater UHF GMRS freq