None of the channels are marked as control channels.
You will have to try all 20 to find out which is the active control channel.
Please submit what you find so we can update the RR DB.
Quickest approach is to download the frequencies from the RR DB. Create a blank EDACS system and set it's RR DB SID to 1328. Click the download tool. That will load talkgroups, one site, and 20 channels.
Go to your signal receiver window. Start your signal reciever. It should indicate as "Running". Give the RTL stick time to warm up. I assume you've already calibrated your RTL stick.
From the reciever window, click on the "Pick Site" tool button.
In the Pick Site dialog, make sure "EDACS96" is selected. Check the box to include voice channels. Select the Edmonton system, then select site 1. In the channel selection combo box, select each channel one by one. The site window will appear with the first channel selected.
Pause for a few seconds on each channel. With a good signal, the health field will display a decode rate and the Protocol field should say "EDACS96". If it doesn't keep moving.
Another approach is to view the 866-869 spectrum in SDR# and look for a solid (not dotted or broken) vertical streak in the waterfall that suggests the continuous broadcast of a control channel. Match that to one of the frequencies in the RR DB. Double-check the signal receiver's calibration.
If the control channel ever rotates to a different frequency - you will have to repeat some of the steps above.
