Receiving air traffic on radio alarm clock
 

Dear group

I am having an interesting problem that I hope someone can explain to
me.

I live in the UK, about 30 miles from Manchester airport. When my radio
alarm wakes me in the morning, tuned to 98.5MHz (BBC Radio 1), I
sometimes hear air traffic conversations intermittently. These are loud
and very clear, as if the plane is flying directly above.

I also own a radio scanner - an Icom IC-R5. However, I have tried to
intentionally tune to the Manchester airport frequencies, but only ever
get a weak signal. I find this strange as my alarm clock only has a
basic wire antenna - far inferior to that of the Icom.

So my questions a Why am I hearing air traffic on 98.5MHz? and if my
radio alarm can receive such a strong signal, why can't I pick it up
with my R5?

Regards

Greg Bolshaw

Receiving air traffic on radio alarm clock
 

"Greg" wrote in message
ps.com...
Dear group

I am having an interesting problem that I hope someone can explain to
me.

I live in the UK, about 30 miles from Manchester airport. When my radio
alarm wakes me in the morning, tuned to 98.5MHz (BBC Radio 1), I
sometimes hear air traffic conversations intermittently. These are loud
and very clear, as if the plane is flying directly above.

I also own a radio scanner - an Icom IC-R5. However, I have tried to
intentionally tune to the Manchester airport frequencies, but only ever
get a weak signal. I find this strange as my alarm clock only has a
basic wire antenna - far inferior to that of the Icom.

So my questions a Why am I hearing air traffic on 98.5MHz? and if my
radio alarm can receive such a strong signal, why can't I pick it up
with my R5?

Regards

Greg Bolshaw


Image response: 98.5 + 2X(10.7)= 119.9 MHz.

No clue as to why the R5 does not pick it up. Are you listening in AM mode?
Dale W4OP

Receiving air traffic on radio alarm clock
 

On 11 Oct 2006 01:48:54 -0700, "Greg" wrote:

Dear group

I am having an interesting problem that I hope someone can explain to
me.

I live in the UK, about 30 miles from Manchester airport. When my radio
alarm wakes me in the morning, tuned to 98.5MHz (BBC Radio 1), I
sometimes hear air traffic conversations intermittently. These are loud
and very clear, as if the plane is flying directly above.

I also own a radio scanner - an Icom IC-R5. However, I have tried to
intentionally tune to the Manchester airport frequencies, but only ever
get a weak signal. I find this strange as my alarm clock only has a
basic wire antenna - far inferior to that of the Icom.

So my questions a Why am I hearing air traffic on 98.5MHz? and if my
radio alarm can receive such a strong signal, why can't I pick it up
with my R5?

Regards

Greg Bolshaw
Because odds are the signal you are receiving is an image,
try 2 x 10.7 (IF frequency for most FM receivers) +98.5, or 21.4 +98.5
=119.9 Mhz, which is right smack in the middle of the VHF air band.

Receiving air traffic on radio alarm clock
 

In message om, Greg
writes
Dear group

I am having an interesting problem that I hope someone can explain to
me.

I live in the UK, about 30 miles from Manchester airport. When my radio

You don't happen to live near Kelsall do you? The transmitter site at
Whitegate gets into quite a few things it shouldn't near there. Not the
fault of the TX just poor RF rejection on the kit that hears it.
--
Bill