The 15 K Hz signal from the DSP is a SSB signal. This is the second IF frequency (from the antenna side).
When this is mixed with the 8.230 Mhz in you end up with the sum and difference with the 15KHz: Namely 8.215 and 8.245 MHz. The 8.215 MHz filter is used to remove the unwanted 8.245 MHz component leaving the desired first IF frequency K1LI [via Elecraft] wrote: > Thanks for writing, Lyle. > > I am curious, then, why the (K3) SSB signal is routed through a > crystal filter. Is it purely a "belt and suspenders" approach to > enforcing a limit on the bandwidth of the transmitted signal? > > Brian K1LI > > ------------------------------------------------------------------------ > If you reply to this email, your message will be added to the > discussion below: > http://elecraft.365791.n2.nabble.com/K3-SSB-generation-tp7588865p7588922.html > > To start a new topic under [K3], email > ml-node+s365791n365792...@n2.nabble.com > To unsubscribe from Elecraft, click here > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=365791&code=bGF3bG9wZXozQGdtYWlsLmNvbXwzNjU3OTF8MjU5MTAzNDE2>. > NAML > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > > -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-SSB-generation-tp7588865p7588924.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com