[BDM]

Too my knowledge, baby monitors never used the high end of the BCB. Though early cordless telephones did. I owned one many years ago. Of course this was before they expanded the present BCB. Also, it had to be local. Those flea powered sets using that portion of the band wouldn't be able to over come even the floor noise. If I remember correctly, my cordless phone had 10/mw output for the handset, and 100/mw for the base. It was weak! I was lucky to get two doors away.

Now when the 49/mc sets showed up. The distance was naturally improved. Not so much due to power output, but because the physical size of the antenna more closely matched the band being used. That little metal whip antenna used for the 1.7/mc phone was a HUGE compromise in efficiency.

When 46-49/mc was the norm, I used to pick up many baby monitors, cordless phones, two way walkie talkies (kids type that Rat Shack sold), even the State Police on the lower portion. Once, I was playing around and picked up my local PD drug unit. They used the low portion of the band with walkie talkies and no repeater system. I was amazed at the time.