can i change frequency of time machine backups
I haven't used TM since my Time Capsule died last winter, i was waiting for new wifi AC TC. since then i purchased a new imac. now i'm deciding between the TC and the Airport Exteme. TC seem slike no brainer due to cheaper memories. the problem is tha tmy new imac is obviously only WiFi N. my last N mac took FOREVER to update my TC...it slowed my computer and seemed to eat my wifi. So ideally i'd love to get the AX unit and then a thunderbolt extermal drive. Altough i now realize the cost of the thurderbolt option on these drives...sweet lord! (Is the tech really that expense? apple controlling distribution to keep sales of TC?) . i probably could have avoided this if i had the patience to wait for an AC imac...but i don't have that much control!
So i figure the way around this would be to limit the backup. i really don't need hourly backups, not a work computer. Is there anyway to change the frequency of backups? daily or even weakly would be sweet for me. Thanks for any help in advance.