Enjoy! #FF-This hashtag mostly shows up on Fridays, which should give you a good indication of what one of the Fs means. The other stands for Follow, and the two combine to make the phrase Follow Friday.. Follow Friday is essentially a Twitter holiday with the aim of getting people to follow one another.
Technical. Original manufacturers part,390 Mhz frequency, 9-volt battery operated, part number 976LM a 977LM keypad is substituted per the manufacturers change, Color: Grey Works with all Liftmaster, Sears and Chamberlain garage door openers, utilizing the 390 Mhz frequency.echnical. Original manufacturers part,390 Mhz frequency, 9-volt battery operated, part number 976LM a 977LM keypad is substituted per the manufacturers change, Color: Grey Works with all Liftmaster, Sears and Chamberlain garage door openers, utilizing the 390 Mhz frequency.
Housed in a 14mm x 14mm LQFP100-pin package, the TMPM036FWFG features a maximum operating frequency of 20 MHz, a built-in 8-channel communication interface (6-channel SIO/UART; 2-channel I[sup. Maximum operating frequency is determined by the financial possibilities of the client for the year. 18um (micron) FRAM technology and features a maximum operating frequency of 25MHz, a significant improvement over the company's previous FRAM devices.