I picked up a second BT modulator, a CAMD 60a, “channelized agile modulator”. It turns out it’s not like the one I’m already using, from the AP series that has front dip switches for Channel in and out. The one I picked up seems to only have a channel out setting using two dip switches inside, accessible from a removable panel on the top of the unit.
It would appear there’s no way to set the input channel (frequency). Internally the dips cover output to channels 7-13 and 23,24 and 25. Since I don’t have a manual I’m not understanding how to configure it so that an input from my set top box, say channel 3 or 4 is broadcast at a channel of my choice from above.
NOTE I am using a jumper for the IF loop, not shown in the picture.
Above pic shows the channel output module and dips. Again I don’t know what kind of input this unit is looking for. Perhaps it only takes an input channel that matches the output? But that would defeat the purpose of an agile device…