The grant 2 down under (1st one out of europe)

[NY714]

Wow what a disappointing end to the wait.. got my amp and can't get it to work all it will do is turn on and when you key down it makes a rattling sound ? Tryed different power source , jumpers, took out swr meter and antenna switch .. still same noise..

Banging my head on a wall and pay'n for it.. meter saying different to rig...

Does it make noise on AM or SSB? If SSB, if SBB like 222DBFL said raise dead-key may help or may have to raise the ALC for SSB. I had this issue and had to mail back to manufactuer and he did something addition with internal chokes and resolved the SSB problem totally. That is why when buy amp always good to send radio, so tech make all proper adjusts between your specific radio and the amp. Good Luck. I know the waiting can be a ball buster !! I hear ya.