Question about Uniden BC248CLT Base Scanner

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Will the BC248clt receive aviation transmitions VHF and UHF?

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Sorry, but the 248 does not cover either aircraft band. To pick up these bands (108-137MHz civil and 225-380MHz military) you'll need to move up to a scanner that provides coverage of these frequencies. For reasonable cost and ease of operation I recommend the BC370CRS.

Bill B

Posted on Jul 12, 2010

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What does RF CH mean?


What is the difference between a RF channel and a virtual channel? The RF channel is the channel that the TV station uses to broadcast its signal. Before the conversion to digital, TV stations were normally identified by their channel number, and most people knew that a particular network was on a specific TV channel. While analog broadcasting was being phased out and all TV stations were converting to digital broadcasting, it was necessary for the TV stations to continue to broadcast their analog signals on their original RF channels, and also broadcast their digital signals on a different RF channel. However, since the TV station used their broadcast channel as part of their identification, they wanted to keep using the same channel number. To allow this to happen, the new digital television broadcasting standards (ATSC) provided TV stations the ability to continue to use their original channel number and also tell the TV set to tune to the new RF broadcast channel when their virtual channel number was selected. The original channel number is called the virtual channel number, and it will be followed by a period and a second number (3.1, 7.1, etc.).
One of the benefits of converting to digital for the TV stations is that they now have the ability to transmit more than one program at the same time on the same RF channel. The number of additional channels they can broadcast is determined by the resolution of the program (SD vs. HD, text only, music only, etc.). The second number in their virtual channel number indicates that one of the additional programming sources from the same TV station is being viewed (10.2, 10.3, 10.4, etc.).
When selecting an antenna, it is important to understand the difference between the RF broadcast channel and the virtual channel. Antennas are designed to receive specific ranges of RF channels, and the antenna needs to be selected for the RF channel you wish to receive. TV stations broadcast in two broad frequency ranges, called VHF and UHF. RF channels 2 through 13 are considered VHF, and RF channels 14 through 51 are considered UHF. In order to pick up the channels, the antenna has to be designed for the correct frequency range. It is very common today to find that TV stations using virtual channels 2 through 13 are actually using RF broadcast channels in the UHF range. Although not as common, some TV stations using virtual channels 14 through 51 are actually transmitting in the VHF range. An antenna designed for only UHF channels will not work effectively for RF broadcast channels in the VHF range, and an antenna designed for only VHF channels will not work effectively for RF broadcast channels in the UHF range.

Apr 09, 2015 | Televison & Video

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My icom 706 mk2g transmits on VHF uhf but not on HF whats the possible problem


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Apr 18, 2012 | Computers & Internet

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I can't get FOX on my converter box--what is the channel # for FOX?


It could be your antenna. Some retailers sold consumers UHF-only outdoor antennas and not VHF/UHF combo antennas. Other outdoor antennas may not have a power boost included for the VHF antennas (rabbit ears). The new DTV signals from stations are now broadcasting in lower power signals than before June 12.

Outdoor Antenna


KMSP/FOX 9 and KARE 11 both broadcast on VHF signals. WCCO and KSTP broadcast on UHF signals. You will need a VHF/UHF outdoor antenna to pick up KMSP and KARE 11 and also get all the other channels.

Indoor Antenna


Check your antenna to make sure it's a UHF/VHF antenna. You may need an indoor antenna that has rabbit ears -- that is the best way to get KMSP/FOX 9 reception on your TV. Your antenna should have a power boost to amplify the VHF signal if you are having trouble getting FOX 9 or KARE 11.

What Antenna Is Right For You?

Need help locating the proper outdoor antenna to receive your local television broadcast channels? Based on geographical maps and signal strengths, AntennaWeb.org locates the best antenna for you, whether it's a home satellite system, high-definition television (HDTV) or a traditional analog set.

Make sure you antenna is pointed toward Shoreview, where FOX 9 transmits from.

CALL FOX 9 FOR HELP: 952-944-9999

Apr 07, 2010 | Televison & Video

1 Answer

Since the digital switchover, I have lost channels, despite re running the setup and tuning. Any suggestions as to why this is happening?


I have a similar issue. When the digital switch happened here some of the local TV stations changed frequencies from UHF to VHF. I do not have a VHF antenna so I am unable to receive these channels. I do have a great UHF antenna, but it will not receive VHF. The fix is of course is a new UHF/VHF antenna. I am 50 miles away from the TV transmitters.

This may or may not be your problem. I hope this is helpful to you.

Bob

Nov 08, 2009 | JVC LT42P789 42 in. LCD TV

1 Answer

Changing the Pro-49 Scanner from UHF to VHF channels,


Hi george - You can get the manual in sections that will tell you what you need to know plus you'll have it for reference. It's the way Radio Shack posts them. It's at this link:

http://support.radioshack.com/support_electronics/16429.htm

Or you can go to this site and send an email and they will email you the manual:

http://radiocollector0.tripod.com/id58.html

If this solves your problem PLEASE rate this as fixed. If you need more help just add a comment and I'll be happy to assist you further. Thanks.

Jeff

Jul 10, 2008 | Uniden BC248CLT Base Scanner

1 Answer

Sanyo ds 31350 tv


Hi there!

Assuming that you tried to tune stations onto the UHF bandwidth and received nothing,Commonly the tuner box is probably at fault and needs replacement. The VHF and UHF signals are split inside the tuner so if you receive VHF fine then UHF should as well unless faulty of course. Some circuits require an external IC to do the switching, but more on the older models. Regards and good luck, JUS004

Apr 02, 2008 | Televison & Video

1 Answer

Reception of vhf/uhf channels


You did not mention which set you have, so look for a small switch (usually on the back of the set) or go into the menu and set the TV to the "broadcast" or "tv" mode. If the set is in the "cable" mode, you will not get any UHF channels above 13.

Sep 01, 2007 | Televison & Video

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