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Your radio is not capable of recieving air band frequencies. It will only receive 4 bands consisting of: 26 - 54 MHz; 68 - 88 MHz; 137 - 174 MHz and 380 - 512 Mhz.
The VHF airband uses the frequencies between 108 (just above commercial FM radio) and 137 MHZ (just below 2 meter Ham radio).
Amplitude Modulation ("AM") is the mode that transmissions are made. The lowest 10 MHz of the band, from 108-117.95 MHz, is split into 200
narrow-band channels of 50 kHz. These are reserved for navigational aids
such as VORbeacons, and precision approach systems such as ILS localizers
Sounds like either local interference or it needs to go to Shure for repair. Can you try it in another location maybe 10 miles or further away from the present location. If it operates in the MHz band you need to replace it, it is illegel to use that band in the US..
This system operates in the 600 MHz band. Things to consider: Never use rechargeable batteries in things designed for alkaline. Transmitter should be within 100 feet for reliable link. Interference from other sources will OVERIDE the low power signals for this unit. Such sources can for instance be the fourth harmonic of polce and taxicab radios... fifth harmonic of aircraft radios... other RF sources including computers. All of these devices are SECONDARY users that MUST tolerate interference from licensed primary users of the band. The devices are FM radio links and with FM a transmitter anywhere near the same frequency will "CAPTURE" the discriminator of the unit and you MAY not even hear the audio of the interfering transmitter/source because it may use a different modulation means, if it is even modulated. Just changing to a different channel is NOT likely to fix the problem long term either. Shure makes high quality devices and I doubt the device is defective... only interfered with or being used at too long a range. Use an unused wire in the snake if you use one to get the transmitter within 20 feet of you and it might fix the problem. This unit is NOT a diversity device as in ear monitors are really not diversity (with two antennas and receivers) like ones used to send the other direction often are.
Your scanner does not receive frequencies between 54 and 137 MHz, and there's nothing you can do to enable reception in that block. Your only option is to purchase a scanner with air band coverage. Here are the reception ranges of the BC-60XLT-1:
29.0-29.7 MHz 10 Meter Amateur Band 29.7-50 MHz VHF Low Band 50-54 MHz 6 Meter Amateur Band 137-144 MHz Military Land Mobile 144-148 MHz 2 Meter Amateur Band 148-174 MHz VHF High Band Above bands in 5 kHz steps 406-420 MHz Federal Government 420-450 MHz 70 cm Amateur Band 450-470 MHz UHF Standard Band 470-512 MHz UHF "T" Band Above bands in 12.5 kHz steps
Need the manual for your scanner? You can download and print it, at no cost, here: http://www.uniden.com/pdf/BC60XLT-1om.pdf
You are correct regarding the frequencies used by aircraft, but unfortunately your scanner does not cover this range. The UBC244CLT covers 66-87.265, 137-173-995, and 406-512MHz. To receive the aircraft band (108-137MHz) on an economically-priced scanner you will need to purchase the BC370CRS or UBC370CRS.
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.
the aircraft band is am while the rest of the bands are fm so i would guess its in the am oscillator or detector circuits or the power supply feeding them. this would be a fix for a technician.
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