Channel range

Hoang · #1 (**permalink**) 10-15-2007, 02:13 PM

I just bougtht a Sadoun C180 Modulator and it works fine at home. However at a hotel in California, I used it to watch output from my DVD with the room's TV but it did not work. I tried both UHF and Cable mode.

The hotel TV had channel 3 to 26 available when I use the Up/Down button. So what frequency ranges (mode) does the hotel TV have? What mode should I set to? What could go wrong? Thank you for your help.

Hoang · #2 (**permalink**) 10-17-2007, 02:22 PM

Would some expert answer these questions?
My guess is channel 3-13 is VHF and 14-26 is UHF. The hotel has a device to convert selected stations in cable range to channel 3-26?
I heard the TVs in expensive hotels have all kind of signal inputs including input for your laptop but I cannot afford them.
Thank you.

nhulst · #3 (**permalink**) 10-27-2007, 12:35 PM

This may be a long shot, but I'm going to offer it since you haven't gotten any replies yet. The frequencies that correspond to the various channel numbers are different depending upon whether the signal is received over-the-air (OTA) or by cable TV. My guess is that the hotel's TV is configured for cable, but the modulator is using the OTA frequencies. It's not entirely clear to me by reading the product page, but it does include this statement:

"Adjustable channel range - UHF 14-69, CATV 65-95 & 100-125"

I read this to mean that channels 14-69 use the OTA frequency set and channels 65-95 and 100-125 use the CATV frequency set. I'm sure you are wondering, as I am, how to reconcile the overlap in channel numbers, and I'm afraid I dont' have an answer for that. So, to be able to use your modulator, you would have to see if you can get into some sort of setup menu in the hotel TV to either switch it to expect an OTA signal or unlock the higher-numbered channel.

Hope this helps...

Hoang · #4 (**permalink**) 10-29-2007, 06:11 PM

nhulst:
Thank you for your info. I think you're correct. I did some research and found that channel 2-13 are the same for OTA and cable but the other channels are different.
I think the problem was the hotel used cable but the TV's like other older TV's cannot accept higher channel than 64. My modulator only use channel 65 and up so it did not work.
I think I have to buy a common modulator that use channel 3 and 4 for the older TV's because I could not find a way to swich the TV to OTA.
Thank you again.