On 4th of May 2012 i tuned to 16114 KHz at 1915 UTC, awaiting a XPA2 Sked, i listened to a week ago. Initially i was able to see and hear them tuning the transmitter. Sked was awaited at 1920 UTC. When the OP finished tuning to the highest power output, he keyed a test-tone. After the test-tone the following noise (see picture and audio) appeared until the sked starts. You can here the qsb on the noise and see, that it is nearly covering the USB Channel.

The second sked, so far found, is 14818 KHz at 1940 UTC. At 5th of May 2012 the noise appeared again, but this time only on 14828, right after tuning the tx.

XPA2 Sked Details as known so far:

1. Time	2. Time	3. Time	1. QRG	2. QRG	3. QRG	Day	Day
1900	1920	1940	not found	16114	14828	Fri	Sat

Check for repeats during the week.

[Picture shows USB Channel right after tuning TX at Friday, 04th May 2012, 1915 UTC]

Below is the audio snippet from the noise. I suggest to use a good headphone or good speakers to hear the full sound spectrum. With a Labtop Speaker you hear not all.

[Pictrure shows full spectrum of XPA Sked from 1915 UTC - 1923 UTC; Noise on lower left]

 [Picture shows same noise on frequency 14828 KHz at 5th May 2012, 1931 UTC]