1 files changed, 1 insertions, 1 deletions

diff --git a/05.-KrakenSDR-Web-Interface-Controls.md b/05.-KrakenSDR-Web-Interface-Controls.md
index a2146bf..781adcc 100644
--- a/05.-KrakenSDR-Web-Interface-Controls.md
+++ b/05.-KrakenSDR-Web-Interface-Controls.md
@@ -323,7 +323,7 @@ This provides an option to calibrate the full system by compensating for phase d
 
 `explicit-time-delay` - If you've measure time delay with a VNA you can input the time differences in nanoseconds here. Please note the differences must be measured relative to channel 0. 
 
-`touchtone` - You can output S21 or S12 .s1p files from your VNA for the 5 coax cables in your system, and copy them to the _calibration folder. Name them as cable_ch0.s1p, cable_ch1.s1p and so on for each of your five cables used in the system. You need to ensure that the touchstone file covers the frequency range that you will be using.
+`touchtone` - You can output S21 or S12 .s1p files from your VNA for the 5 coax cables in your system, and copy them to the _calibration folder. Name them as cable_ch0.s1p, cable_ch1.s1p and so on for each of your five cables used in the system. You need to ensure that the touchstone file covers the frequency range that you will be using. Note that this will only work as long as the phase compensation does not wrap - e.g. make sure that the cables you are calibrating have length differences much less than the frequency wavelength you are working with.
 
 **IQ Adjust Amplitude**