All these channel are missing from your database for San diego and Tijuana: xhtjb: analog 3, xhbj: analog 45. Also analog xhtit 21, xhjk 27, xhuaa 57
*Update:
xhtjb 3 is broadcasting from cerro colorado with 40.000 kw
xhbj 45 is broadcasting from 32 31'56 N
117 03'55 W
with 1250.000 kw
analog xhtit 21 in monte san antonio (32° 30' 8.00 " N, 117° 02' 21.00" W)
with 3000.270 kw
http://www.fcc.gov/fcc-bin/tvq?list=0&facid=137363
analog xhjk 27 in monte san antonio (32° 30' 8.00 " N, 117° 02' 21.00" W)
with 3090.720 kw
http://www.fcc.gov/fcc-bin/tvq?list=0&facid=137364
analog xhuaa 57 in monte san antonio with 3600.000 kw