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Anyone know what would cause this strange reception?

MarcB

MarcB

Anyone know what would cause this strange reception?

From Meriden Avenue (State Route 120) in Southington, Connecticut you can see Meriden Mountain and the FM towers up there. There are two translators that have their antennas on the tower of their full powered FM station WMRQ. One translator is on 96.1 FM, is 210 watts, and runs Oldies Music simulcasting WNTY 990. The other translator is on 98.5 FM, is 250 watts, and runs Spanish CHR Music simulcasting WMRQ HD2.

So I was on Savage Street in Southington this morning, which is off of Meriden Avenue. I was picking up both translators - 96.1 and 98.5 at the same time on 100.9 FM. What caused this?
 
MarcB said:
Anyone know what would cause this strange reception?

From Meriden Avenue (State Route 120) in Southington, Connecticut you can see Meriden Mountain and the FM towers up there. There are two translators that have their antennas on the tower of their full powered FM station WMRQ. One translator is on 96.1 FM, is 210 watts, and runs Oldies Music simulcasting WNTY 990. The other translator is on 98.5 FM, is 250 watts, and runs Spanish CHR Music simulcasting WMRQ HD2.

So I was on Savage Street in Southington this morning, which is off of Meriden Avenue. I was picking up both translators - 96.1 and 98.5 at the same time on 100.9 FM. What caused this?
Click to expand...

Mixing of the signals in one of the transmitters, in your radio, or less likely another transmitter or even two large pieces of rusty metal in contact with each other - can cause harmonics (multiples of the original frequency), sums, and differences to be created.

In this case:

2 x 98.5 = 197

197 - 96.1 = 100.9
 
channel99 beat me by ten minutes, but I will offer a different explanation here:

You were receiving very strong signals from both translators.
Mixture products can be produced at the difference of their two frequencies
subtracted from the lower one and added to the higher one.
96.1 and 98.5 are 2.4 MHz apart.
96.1-2.4=93.7 and 98.5+2.4=100.9
Assuming there is no other station on 93.7, you might also hear them there.

For another reason, if you are ever by two co-located stations that are 10.6 or 10.8 MHz apart,
you can expect to hear them all across the dial wherever there are no other signals.
 
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