Talk:Intermediate frequency
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From an email to Wikimedia:
"While no factual errors, the omission of the most common IF (Intermediate Frequency) for FM radios, 10.7 MHz, used since the 1940s when FM first came about is glaring. Virtually any FM broadcast radio you pick up today will have a 10.7 MHz IF in it. Many will also often have a second IF at 455 kHz.
True, the listed 455 kHz is also the most common IF in AM and single conversion radios, but the other two IFs listed are brand-specific random choices of frequencies. 10.7 MHz has been a staple of nearly every brand of modern FM radio ever produced, tube or certainly solid state, since FM's inception in the 1930s. So much so, NOT using 10.7 MHz specifically identifies some brands (e.g., 10.8 MHz was 'unique' by patent to Electra Bearcat scanner radios)."
Can someone review and make any edits neeed? This isn't my area. Thanks -- sannse (talk) 20:38, 21 January 2006 (UTC)
[edit] Other common intermediate frequencies ...
`Other common intermediate frequencies are 2400MHz (WLAN), 2000MHz (Cellular/WLAN), 850/900/1800/1900MHz (Cellular)'
Um, wouldn't these be the actual frequencies used by these applications, rather than intermediate frequencies? dougmc 22:40, 16 June 2006 (UTC)
Please note that these are the actual RF frequencies and not the IF frequencies. Make correction kindly.
[edit] Clean up 1/9/07
Cleaned it up a little bit since the sentences were repetitious. --SamMichaels 15:31, 9 January 2007 (UTC)
[edit] Revision 159334848 by 116.71.34.80
You changed the IMF of television from 30mhz to 41mhz. How can you explain this when common TV modules which use varying frequencies in 30mhz:
- 36.00
- 36.13
- 36.16
- 36.167
- 38.9
--SamMichaels 13:50, 21 September 2007 (UTC)
