Mike and all, On a properly aligned K1 or K2, the display WILL be the frequency to be transmitted.
Not to belabor the point (and perhaps we are really saying the same thing in different words but not understanding each other), but when one hears a 600 Hz tone from a CW signal, the 'receiver frequency' is actually 600 Hz away from that carrier frequency - and yes, the receiver should display the frequency of that carrier (not offset by 600 Hz), and transmit on that displayed frequency if all is setup correctly. I can see this may be confusing, but the net of all of it is that the receiver display should be [VFO - BFO - (sidetone pitch)] and the transmit frequency is just [VFO - BFO]. The result is - if you are receiving a 6999.3 carrier and hearing it at a 600 Hz pitch, your receiver is actually tuned to 6999.9 but the display should read 6999.3 (which is where you will transmit if the K1 is properly aligned). The K1 and the K2 do take the offset into consideration automatically when computing the frequency for display (the K1 must be set for the proper transmit offset as instructed in the manual). It matters not whether we call it transmit offset or receive offset, the net should still be the same. 73, Don W3FPR > -----Original Message----- > Hi Don, > > I agree with all you say if I want my LCD to display the > **receiver** frequency, But I think you missed my main point: I > want my LCD to display the **transmitter** frequency, since from > a standoint of operating close to band lower limits, the > transmitter frequency is what is subject to regulatory requirements. > > So, for a LSB receiver with a CW transmitter offset, the > transmitter frequency will be *below* the receiver's zero-beat > frequency by the amount of offset. For example, I use a 600 Hz > offset on my K1. If I am zero-beat with 10000 kHz WWV, my K1 > display actually shows 9999.4 kHz, since that is the frequency > that my K1 transmitter will emit if I key it. > > >Yes it is true that under these conditions, the > >actual receiver frequency is offset by 600 Hz, but the frequency > >display should show 6999.3 (the center of the receiver passband > >will be 6999.9 kHz) > > I define actual receiver frequency as the zero-beat frequency, > and I define actual transmitter frequency as that which would be > determined by a frequency counter. > > 73, > Mike / KK5F _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
