Is your HF receiver calibrated?

Let's calibrate the IC7300, making sure the received audio is exactly the proper pitch for the dial frequency. This is important for any digital mode in Single Side Band, plus it will make voice contacts sound more accurate.

[metalfabman]

Really interesting demonstration, thanks

[pietleroux]

Its fine if you own a IC7300 but if you dont use your cw sidetone : if it is set at 1 Khz it will work exactly as described in your video but the best way to do it is to use digital mode app WSJT-X on its frequency calibration mode, it has a routine for doing this and the results are very accurate. PS remember the higher the frequency of the time signal the more accurate your calibration will be.

[californiakayaker]

That throbbing can go down to really low frequencies. You can hear (listen carefully) 1/2 cycle per second or there abouts if you learn how to hear the "throb". That said, I"ve needed to do this, as I use a mode called JS8CALL (JS8) and sometimes my transmission starts at say offset 2001 and ends up changing to anouther line at 2000 messing up the "message" . Have you noticed a carrier suppression adjustment for this radio ?

[Randy-xswm]

1 kiloHertz should not be pronounced “kilohurt”… You seem to think that pronouncing “kilohurts” is plural and therefore reserved for 2 or more kiloHertz. The truth, however, is that kiloHertz was named for Heinrich Hertz, so what sounds like a plural to you is really someone’s name. Therefore, it is indeed pronounced kiloHertz, whether you’re talking one or whether you’re talking many.