Confusing readings

I am looking for a place to live and have been checking RF levels. At one potential place my electrosmog detector (sensory perception) was making a high-pitched noise that I know was from a cell phone tower about a mile away (not strong, but distinct) but to my surprise the TES-92 meter only showed about 7mv/m

However, the place I lived in previously was 10-14 mv/m but the sensory perception detector made no noise.

There is obviously something I'm missing here - I'm very baffled?!

I would take this place based on the 7mv/m reading but a previous house I lived in had a similar sound from the sp meter in the bedroom and I couldn't sleep there (in fact that is the house where I became sensitized).

Can anyone shed light on this? (p.s. it's not a battery issue).

Thanks,
Aline

Hi Aline,

> (sensory perception) was making a high-pitched noise that I know was from a cell phone tower about a mile away (not strong, but distinct) but to my surprise the TES-92 meter only showed about 7mv/m
>  
High pitch whine sounds like a cell tower all right, but maybe your
location was behind something that blocked the majority of the signal?


> However, the place I lived in previously was 10-14 mv/m but the sensory perception detector made no noise.
>  
Something _other_ than cellular could be louder at this location, but it
isn't being picked up by the MW1 ... I have seen that myself in just a
few places. Two of which were a point to point microwave cone antenna,
and I don't know what frequency. I'd call it a gap in, or outside the
range of, the meter's coverage, but without proper testing, it is only a
guess.

Stewart

Stewart,
what are these?
"Two of which were a point to point microwave cone antenna,"
 
Lizzie
 



To: [hidden email]
From: [hidden email]
Date: Sat, 28 Jan 2012 16:04:44 -0800
Subject: Re: [eSens] Confusing readings


 



Hi Aline,

> (sensory perception) was making a high-pitched noise that I know was from a cell phone tower about a mile away (not strong, but distinct) but to my surprise the TES-92 meter only showed about 7mv/m
>
High pitch whine sounds like a cell tower all right, but maybe your
location was behind something that blocked the majority of the signal?

> However, the place I lived in previously was 10-14 mv/m but the sensory perception detector made no noise.
>
Something _other_ than cellular could be louder at this location, but it
isn't being picked up by the MW1 ... I have seen that myself in just a
few places. Two of which were a point to point microwave cone antenna,
and I don't know what frequency. I'd call it a gap in, or outside the
range of, the meter's coverage, but without proper testing, it is only a
guess.

Stewart




     

[Non-text portions of this message have been removed]

Elizabeth thode wrote:
> what are these?
> "Two of which were a point to point microwave cone antenna,"
>  

Cone antennas are found only on the top of hills, and make up the
microwave backbone between towers. This sends out a focused beam that is
supposed to deviate less than 5 degrees from the target.

After thinking about it, the antennas I saw at these 2 sites on the
ground level, were yagi antennas, still focused but without the cone. So
I should've left out the cone descriptor in this case.
Imagine a tower 20+ miles away sending out a laser beam to the next
tower, or in these cases a short 10-25 ft tower at ground level. How
much of
that beam is going to spread out like a flashlight at the target site?

At this example a WaState-DOT facility, the Acoustimeter picks up over 1
V/m but does not make any sound. Cornet and Zap checker also pick up the
signal strength, along with my head, and the highway is 100 ft away from
the tower.
Or the second example an uplink from next to a church up to the tower
for their low power FM broadcast 24/7. When they added internet service,
the new beam becomes 2-way, and the houses next to the uplink become
very hot, as the downstream illuminates the area around the uplink site.

These examples should give you ideas on what to look for when surveying
an area.

Stewart

Thank You Stewart!
Lizzie
 



To: [hidden email]
From: [hidden email]
Date: Sun, 29 Jan 2012 07:14:56 -0800
Subject: Re: [eSens] Confusing readings


 



Elizabeth thode wrote:
> what are these?
> "Two of which were a point to point microwave cone antenna,"
>

Cone antennas are found only on the top of hills, and make up the
microwave backbone between towers. This sends out a focused beam that is
supposed to deviate less than 5 degrees from the target.

After thinking about it, the antennas I saw at these 2 sites on the
ground level, were yagi antennas, still focused but without the cone. So
I should've left out the cone descriptor in this case.
Imagine a tower 20+ miles away sending out a laser beam to the next
tower, or in these cases a short 10-25 ft tower at ground level. How
much of
that beam is going to spread out like a flashlight at the target site?

At this example a WaState-DOT facility, the Acoustimeter picks up over 1
V/m but does not make any sound. Cornet and Zap checker also pick up the
signal strength, along with my head, and the highway is 100 ft away from
the tower.
Or the second example an uplink from next to a church up to the tower
for their low power FM broadcast 24/7. When they added internet service,
the new beam becomes 2-way, and the houses next to the uplink become
very hot, as the downstream illuminates the area around the uplink site.

These examples should give you ideas on what to look for when surveying
an area.

Stewart




     

[Non-text portions of this message have been removed]

Hi Stewart, thanks for your response.

We drove towards the cell phone tower and the SP meter got louder (and the TES-92 meter got into the hundreds - but on reflection I would expect it to be in the 1000's right near the tower).

Need to look into it more...

Aloha,
Aline

--- In [hidden email], S Andreason <sandreas41@...> wrote:

Hi Aline,

"(sensory perception) was making a high-pitched noise that I know was from a cell phone tower about a mile away (not strong, but distinct) but to my surprise the TES-92 meter only showed about 7mv/m"
 
High pitch whine sounds like a cell tower all right, but maybe your
location was behind something that blocked the majority of the signal?

"However, the place I lived in previously was 10-14 mv/m but the sensory perception detector made no noise"

Something other than cellular could be louder at this location, but it isn't being picked up by the MW1 ... I have seen that myself in just a few places. Two of which were a point to point microwave cone antenna, and I don't know what frequency. I'd call it a gap in, or outside the range of, the meter's coverage, but without proper testing, it is only a guess.

Stewart

>At one potential place my electrosmog detector (sensory perception) was
>making a high-pitched noise that I know was from a cell phone tower about a
>mile away (not strong, but distinct) but to my surprise the TES-92 meter
>only showed about 7mv/m

Measuring digital RF signal is tricky, and if you lined up 10 different
meters you would get 10 different readings. There are at least 3 reasons for
this:

1- each meter has an "antenna factor". This means that the antenna will
respond differently to different frequencies. So, even if you have 1 pure
signal at 900 MHz for example, each meter's antenna factor for 900 MHz could
be different.

2- quality/accuracy... naturally a better quality meter will give better
results

3- most important: if all meters where measuring analog signals, the results
would be fairly consistent. But with a digital signal, you have pulses
separated by quiet zones. Is the meter measuring the strength of the pulse?
Is it averaging the strength of the pulses over the time of the quite zones?
Is it doing something else? Each meter has its own unique way of handling
this aspect.

(now, multiply these factors by an environment where there is not 1 signal,
but perhaps dozens at different frequencies)

So, don't be confused if two meters measure differently. Be glad that you
have 2 meters. You have a better chance of catching the signal!

Emil