After you click on the link above, you will be asked if you wish to subscribe to the calendar, click on the 'Subscribe' button. At the next window, uncheck Remove Alert, if you wish to receive meeting notices the day before the meetings. Next, change the 'Auto Refresh to Every Day'. When you subscribe, YOUR calendar will now have the LHMUG calendar also. If you have subscribed before, you may find that you will need to delete the old subscription and re-subscribe. To un-subscribe, select the calendar in Calendar list then press the Delete key.
Note: If you are receiving alerts, and no longer wish them, do the following:
On the Macintosh, open iCal, then select the calendar button in the top left corner. Now single click on the LHMUG calendar, and type Command-I (or right mouse click and select Get Info). In the resulting window - check Ignore Alerts.
For iDevices, go to Settings - Mail Contacts Calendars - Turn OFF New Invitation Alerts.