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On Tue, 6 Jan 2004 17:26:59 -0600, "Steve Nosko"
wrote: Motorola's first solid state 450 car phone, the MK, used a 50 W 150 MHz PA followed by a varactor tripler for 10W at 450. Varactor triplers are tricky however. Steve K;9;d/c/i The worst is suppression of 150MHz, it is almost impossible to suppress it. Bought some UK commercial integrated modules for 432MHz which was fed from 144MHz 1W, had a 20W amplifier within a very well screened and silvered box, but radiation on 144MHz were almost impossible to suppress, the only way out was to place it deep at the lowest point of the basement with ferrite chokes on the cables LA8AK -- Amount of SPAM is so large that MailWasher must delete 99% of the incoming mails Cannot check every email manually. Please use intelligent title for email. Mails without titles or using just "hi" is deleted |
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