On 2019-07-23 12:47 PM, Alan Bloom wrote:
> Also be aware that the center frequency differs depending on mode.
The P3 *should be able to account for that* by using the FI get:
FI * (I.F. Center Frequency; GET only)
RSP format: Finnnn; where nnnn represents the last 4 digits of the
K3’s present I.F. center frequency in Hz. Example: If nnnn = 5000,
the I.F. center frequency is 8215000 Hz. Intended for use with
panadapters, which need to keep track of the exact I.F. center
frequency as filter bandwidths and shifts are changed by the
operator.
73,
... Joe, W4TV
On 2019-07-23 12:47 PM, Alan Bloom wrote:
Good advice.
Also be aware that the center frequency differs depending on mode. For
example, it is the supressed carrier frequency on SSB but is offset by
typically 600 Hz on CW.
I like to use AM mode for frequeny calibration. After doing a frequency
calibration on the K3, tune to a signal on the AM broadcast band and
adjust the P3 frequency calibration. (MENU:RefCal. Cal procedurre is
on page 39 of the manual) As I recall, AM broadcast stations are
required to be within 20 Hz of nominal frequency but are typically much
closer than that.
Alan N1AL
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