John Shutt wrote: > What frequencies are used in the united States for PCM, > TDMA, CDMA, and GSM digital mobile telephony? > > My Verizon CDMA phone is equipped to receive 800 for AMPS > (analog), and 800 or 1900 for CDMA. I have no way of knowing > when I'm using 800 and when I'm using 1900 for digital. True, but the situation is different. These two-way cellular services rely entirely on very small cells to achieve lots of frequency reuse. If there is a dip in the road, you will need to compensate for it by locating a cell tower in the low part of the terrain. I notice this very effect where we live. I think John Golitsis has a similar situation. Lousy cell coverage at home, because of the terrain. DVB-H, when used in conjunction with DVB-T transmitters, relies on the coverage achieved by the UHF (or VHF) wavelengths. When used at cell phone frequencies, as Doug pointed out, it will be interesting to see what accommodations will need to be made. Might need a denser SFN. Depending on terrain. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.