|
IMO Blonder Tongue modulators are the way to go for best picture/sound quality...which model to go with depends on your needs. For transmission the AM60 family is best, IIRC the BAVM family if second best power output wise, and the AM40 comes in 3rd. The BAVM family is fixed channel (not agile) so make sure there is no DTV carrier on or adjacent to the channel you buy. The AM agile modulators 3 digit post fix indicates the max frequency it can output (some can only do VHF, some VHF+CATV others everything including UHF).
You can adjust sound and video modulation level on all models I've mentioned to eliminate buzz and have picture look best.
Shango66 on YouTube has a good video on making your own dipole antenna out of lamp cord and an F connector. I followed that recalculating the math for the channels I use and it has worked well.
All BT modulators seem to have the strongest output on channel 7...The AM60 can send signal in a block radius with the output potentiometer cranked, the BAVM about half that, and the AM40 about 200-400'.
Blonder Tongue modulators often have bad lytics, and some times need you to play with grounding (try normal, ungrounded, and ungrounded powered through a line isolation transformer). Antenna placement is important and metal and living things in your walls/house can effect reception.
|