#V6 query audio level input to use for test tone alignments

Andy_501 · 2020-01-18T09:21:48-08:00

Anybody have a audio level to use at the mic input for a two tone test tone for SSB power o/p and? alignment checks??

Andy_501 #75080 Anybody have a audio level to use at the mic input for a two tone test tone for SSB power o/p and? alignment checks??
Arv Evans All Messages By This Member #75083 Andy The electret microphone that comes with uBITX puts our approximately 45 millivolts.? Microphone input includes a pull-up resistor for powering the mike, so you may want a pull-down resistor that equals the current draw of the electret microphone. Arv _._ toggle quoted message Show quoted text On Sat, Jan 18, 2020 at 5:15 AM Andy_501 <andrew.webb.501.ve4per@...> wrote: Anybody have a audio level to use at the mic input for a two tone test tone for SSB power o/p and? alignment checks??
Andy_501 #75087 开云体育 OK thanks Arv On 2020-01-18 9:46 a.m., Arv Evans wrote: toggle quoted message Show quoted text Andy The electret microphone that comes with uBITX puts our approximately 45 millivolts.? Microphone input includes a pull-up resistor for powering the mike, so you may want a pull-down resistor that equals the current draw of the electret microphone. Arv _._ On Sat, Jan 18, 2020 at 5:15 AM Andy_501 <andrew.webb.501.ve4per@...> wrote: Anybody have a audio level to use at the mic input for a two tone test tone for SSB power o/p and? alignment checks??

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