Canadian TV, Computing and Home Theatre Forums - View Single Post - Industry Canada puts moratorium on the use of television channel 51

holl_ands · 2012-01-17, 04:16 PM

Technical Articles by Charles Rhodes (TV Technology Mag) re Interference between DTV
and New Cell Phone Freqs in the so-called 700 MHz Band:
http://www.tvtechnology.com/article/...xamined/210567
http://www.tvtechnology.com/article/...roblems/210841

BTW: Ch51 might be helping by eliminating ADJACENT channel interference to Cell Phones,
but as Charles Rhodes points out, there can be significant NEXT ADJACENT
(N+/-1, 2, 3, 4, 5, 6, 7, etc) EMI...esp. anywhere near the DTV Antenna Farms....and
when/if even more UHF freqs are transitioned from DTV to Cell Phone usage, then
EVERY lower channel will be occupied, making it certain that IMD products will fall
on top of the even Newer Cell Phone Freqs....at which point, ALL DTV operations
will be encouraged to move to the VHF Band....just Ch2-13...minus Ch5+6 for FM????

2012-01-17, 04:16 PM	#3
holl_ands Veteran Join Date: Nov 2008 Location: San Diego, CA Posts: 1,599	Technical Articles by Charles Rhodes (TV Technology Mag) re Interference between DTV and New Cell Phone Freqs in the so-called 700 MHz Band: http://www.tvtechnology.com/article/...xamined/210567 http://www.tvtechnology.com/article/...roblems/210841 BTW: Ch51 might be helping by eliminating ADJACENT channel interference to Cell Phones, but as Charles Rhodes points out, there can be significant NEXT ADJACENT (N+/-1, 2, 3, 4, 5, 6, 7, etc) EMI...esp. anywhere near the DTV Antenna Farms....and when/if even more UHF freqs are transitioned from DTV to Cell Phone usage, then EVERY lower channel will be occupied, making it certain that IMD products will fall on top of the even Newer Cell Phone Freqs....at which point, ALL DTV operations will be encouraged to move to the VHF Band....just Ch2-13...minus Ch5+6 for FM????