Thanks the info.
So are you saying you can hear the controllers on all the high altitude frequencies listed except 135.600 ?
Re: 134.280 and 127.130
Is this exactly how you have the frequencies entered into the scanner ie: .280 and .130 ? Are you aware that with 8.33 KHz spacing the "channel" is not exactly the same as the actual "frequency" that is being used ? Depending on the bandwidth that is set on the receiver it will improve reception if you have the correct "frequency" entered. In this case:
"Channel" 134.280 = "frequency" 134.275 MHz
"Channel" 127.130 = "frequency" 127.125 MHz
ie: enter 134.275 into the scanner and not 134.280, you have this one entered twice on your list.
For more info on 8.33 KHZ spacing ....http://www.jeppesen.com/download/briefbull/fra99-f.pdf
Re: 135.720 and 135.620
Maybe a typo, but the correct frequency that should be entered in the scanner is 135.725 and 135.625, otherwise they will be slightly off frequency with a tight bandwidth set.