Christian Broadcasting on AM

[Stellasstillarat]

With little to no dx conditions in nj this station on 27.6935 AM doesn't only have a great signal but the type of audio an AM operator could only dream of.

I don't know where it's coming from but I'm assuming there using a large plate modulated transmitter.

Is anyone familiar with this station and where it's coming from? is it possible they're transmitting on two frequencies.?

I'm guessing they're transmitting somewhere on the AM radio format.

can those types of transmitters transmit on two or more frequencies at once?

I find it hard to believe there's a large following on 27.6935.

 

[Captain Kilowatt]

It's not transmitting on that frequency. There are a lot of possibilities why you are picking it up there and the main reason is intermod which is the result of two signals mixing and combining to produce different frequencies. Some of those frequencies may be generated inside your very own receiver. If the signal is strong enough it may overload your receiver and cause it to appear on some odd frequency. If you have two receivers tune another one across the SW band and you should be able to hear the same transmitter. Another reason could be that you are picking up an image frequency which is offset from the actual frequency by twice the IF frequency of your receiver. For instance the usual IF freq. is 455KHz so twice that is 910 KHz. 27.6935 +/- 910 KHz is either 28.6035 (inside the 10m amateur band so no go) or 26.7835 which is a possibility but not likely.I think the real frequency you are picking it up on is 27.695 as xx .6935 is not a standard frequency assignment. Strong signals can cause all sorts of issue when they overload a receiver front end.

 

[Stellasstillarat]

It's not transmitting on that frequency. There are a lot of possibilities why you are picking it up there and the main reason is intermod which is the result of two signals mixing and combining to produce different frequencies. Some of those frequencies may be generated inside your very own receiver. If the signal is strong enough it may overload your receiver and cause it to appear on some odd frequency. If you have two receivers tune another one across the SW band and you should be able to hear the same transmitter. Another reason could be that you are picking up an image frequency which is offset from the actual frequency by twice the IF frequency of your receiver. For instance the usual IF freq. is 455KHz so twice that is 910 KHz. 27.6935 +/- 910 KHz is either 28.6035 (inside the 10m amateur band so no go) or 26.7835 which is a possibility but not likely.I think the real frequency you are picking it up on is 27.695 as xx .6935 is not a standard frequency assignment. Strong signals can cause all sorts of issue when they overload a receiver front end.

Sorry captain. I understand what your saying and don't think it matters but I was actually hearing it on 27.6950 amd not 35. It's not the first time I've heard what appears to be some fundamental religious of left wing types of broadcasting on that very frequency.

 

[tecnicoloco]

Sorry captain. I understand what your saying and don't think it matters but I was actually hearing it on 27.6950 amd not 35. It's not the first time I've heard what appears to be some fundamental religious of left wing types of broadcasting on that very frequency.

27.695 LSB is an Spanish contact frequency

Maybe somebody was playing some carrier on AM with Christian Broadcasting to create havoc or interference,very common now days like some clowns on CH 38 LSB playing music too

 

[Captain Kilowatt]

It could be a shift caused by intermod from some other mixing scheme. I can guarantee you that the transmitter is not transmitting on 27.695 unless you have a local pirate because that frequency is NOT available for assignment to shortwave broadcasting. I use to have a radio that would pick up the local AM station on 540 KHz even though the station was actually transmitting on 1450 KHz. It would pick it up normally on 1450 and quite well on 540 because 1450 - 910 (twice the radio's IF frequency of 455 KHz) = 540 KHz. I could also pick it up on 2900 KHz which made it look like the transmitter was throwing out harmonics lioke crazy. The problem was that my receiver was being overloaded and the station was appearing on 2900 KHz even though there second harmonic of the transmitter was virtually non-existent. I know that because I serviced that transmitter. There are almost innumerable reasons why you could be picking it up where you are even though it is NOT transmitting on that frequency.

 

[Mudfoot]

God works in mysterious ways.

 

[AudioShockwav]

I Agree with Captain K, I have experienced the same before.
I used to drive up to MT Bullion and work DX out of the mobile, there are several Transmitter sites up there, while tuning around the band I could often hear broadcast stuff..... front end overload.

73
Jeff

 

[Stellasstillarat]

God works in mysterious ways.

LOL!