i am chaseing information on keeping a smx4450 repeater cool .i have considered installing a bigger heatsink onto the back of the tx radio  but i also remember that someone sugested installing a antenna tuner between the tx radio and the diplexer to reduce the swr so the tx module runs cooler.can anyone sugest a tunner for this band 470-480mhz .
Thank you
Ian Wells
Kerinvale Comaudio
mail service 1017,
Biloela,4715.
www.kerinvalecomaudio.com.au
 








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