Buying a Radar Detector 11 bands ? What the hell ???l

  • Thread starter reckeless_homicidal_mania
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reckeless_homicidal_mania

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I thought I will buy a radar detector . I go look in Target and what the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?

Where do these 11 bands come from ? How do these detectors even work ?
Don't tell me they send out 11 different alert tones (as if I can decode
them at 95 mile an hour) ?

Is it even worth buying one ?

Looks like you are better off obeying speed limits & using other tactics
like go with the flow of traffic etc

Also I always wondered ..... if the radar gun transmits a PCM signal can it
not be made
undetectable to detectors ? If the detector cannot decode the transmitted
code how can it
detect it ? Why is the police not using it ? If the police gun can randomly
preset & vary the code of the
PCM signal , would it not render it undetectable by a detector (unless the
detector has matching PCM
code to receive it ..............am I missing something here ) ? Of course
the transmitting gun can detect the bounced back signal as it would be
synched to transmitted code.
 
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote in message
news:2r62cbF16ql3jU1@uni-berlin.de...
I thought I will buy a radar detector . I go look in Target and what the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?

Where do these 11 bands come from ? How do these detectors even work ?
Don't tell me they send out 11 different alert tones (as if I can decode
them at 95 mile an hour) ?

Is it even worth buying one ?

Looks like you are better off obeying speed limits & using other tactics
like go with the flow of traffic etc

Also I always wondered ..... if the radar gun transmits a PCM signal can
it
not be made
undetectable to detectors ? If the detector cannot decode the transmitted
code how can it
detect it ? Why is the police not using it ? If the police gun can
randomly
preset & vary the code of the
PCM signal , would it not render it undetectable by a detector (unless
the
detector has matching PCM
code to receive it ..............am I missing something here ) ? Of
course
the transmitting gun can detect the bounced back signal as it would be
synched to transmitted code.
Valentine One is the top unit on the market. http://www.valentine1.com The
Escort line is somewhat less in capability, but may be adequate for your
needs. http://www.escortradar.com/
 
In article <2r62cbF16ql3jU1@uni-berlin.de>,
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote:

I thought I will buy a radar detector . I go look in Target and what the
bloody hell 11 bands ..is it a Cable TV or a radar detector ?

Where do these 11 bands come from ? How do these detectors even work ? Don't
tell me they send out 11 different alert tones (as if I can decode them at 95
mile an hour) ?
Who cares what band the radar is in? The fact is, you've got someone throwing
photons of a certain size at you. Time to hit the brakes.

Is it even worth buying one ?

Looks like you are better off obeying speed limits & using other tactics like
go with the flow of traffic etc

Also I always wondered ..... if the radar gun transmits a PCM signal can it
not be made undetectable to detectors ? If the detector cannot decode the
transmitted code how can it detect it ? Why is the police not using it ? If
the police gun can randomly preset & vary the code of the PCM signal , would
it not render it undetectable by a detector (unless the detector has matching
PCM code to receive it ..............am I missing something here ) ? Of
course the transmitting gun can detect the bounced back signal as it would be
synched to transmitted code.
You don't have to demodulate the radar signal to know that it is a radar signal.

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
bike: http://www.timberwoof.com/motorcycle
 
"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-C0D667.14281819092004@typhoon.sonic.net...

You don't have to demodulate the radar signal to know that it is a radar
signal.

Ummmmmmmmm.......interesting.
Then only the simple detection of the carrier frequncey (aka the "modulated"
freqyency) is a
sufficient condition and the "modulating" frequency is irrelevant ?
 
On Sun, 19 Sep 2004 17:41:21 -0400,
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote:

"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-C0D667.14281819092004@typhoon.sonic.net...

You don't have to demodulate the radar signal to know that it is a radar
signal.

Ummmmmmmmm.......interesting.
Then only the simple detection of the carrier frequncey (aka the "modulated"
freqyency) is a
sufficient condition and the "modulating" frequency is irrelevant ?
There is no modulating frequency... speed radar is Doppler.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
 
reckeless_homicidal_maniac_highway_terrorist_driver wrote:

I thought I will buy a radar detector . I go look in Target
Oopsie! Mistake #1. You don't buy your audio equipment from a place that
sells dishwashers. Don't buy your radar detector from a place that sells
women's cut rate undies.

http://www.valentine1.com/

--

Mark Johnson, Ft Worth; IBA#288; CM#1; EOB, DoD#2021; LPR#50
2003 FJR1300 "E˛"; http://www.bikes-n-spikes.org
 
In article <2r6co0F171025U1@uni-berlin.de>,
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote:

"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-C0D667.14281819092004@typhoon.sonic.net...

You don't have to demodulate the radar signal to know that it is a radar
signal.

Ummmmmmmmm.......interesting. Then only the simple detection of the carrier
frequncey (aka the "modulated" freqyency) is a sufficient condition and the
"modulating" frequency is irrelevant ?
What relevant information does the modulation give you? Who else uses radar on
public streets and highways? If you're being lit up by something other than a
cop, you either don't care or you're in way deeper doodoo than with just a cop.

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
bike: http://www.timberwoof.com/motorcycle
 
In article <fbvrk09io8qug5q8aaopa7tj5r5nq7uqm3@4ax.com>,
Jim Thompson <thegreatone@example.com> wrote:

On Sun, 19 Sep 2004 17:41:21 -0400,
"reckeless_homicidal_maniac_highway_terrorist_driver"
_unsafe_at_any_speed@yahoo.com> wrote:


"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-C0D667.14281819092004@typhoon.sonic.net...

You don't have to demodulate the radar signal to know that it is a radar
signal.

Ummmmmmmmm.......interesting.
Then only the simple detection of the carrier frequncey (aka the "modulated"
freqyency) is a
sufficient condition and the "modulating" frequency is irrelevant ?




There is no modulating frequency... speed radar is Doppler.
The radar being transmitted is modulated at some other, more manageable
frequency. The receiver part of the radar gun detects that second frequency and
compares it to the original. So yes, Doppler shift is involved, but it's
technically easier to detect it on a modulated signal.

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
bike: http://www.timberwoof.com/motorcycle
 
On Mon, 20 Sep 2004 00:43:59 GMT, Timberwoof
<timberwoof.spam@infernosoft.com> wrote:

In article <fbvrk09io8qug5q8aaopa7tj5r5nq7uqm3@4ax.com>,
Jim Thompson <thegreatone@example.com> wrote:
[snip]
There is no modulating frequency... speed radar is Doppler.

The radar being transmitted is modulated at some other, more manageable
frequency. The receiver part of the radar gun detects that second frequency and
compares it to the original. So yes, Doppler shift is involved, but it's
technically easier to detect it on a modulated signal.
A CW signal, usually generated by a Gunn-type LO, is sent out.

Reflected signal is Doppler frequency shifted, and is mixed with LO to
get Doppler frequency shift... measured with a counter.

There IS NO MODULATION.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
 
On Sun, 19 Sep 2004 14:44:28 -0400,
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote:

I thought I will buy a radar detector . I go look in Target and what the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?
LOL!!!

I guess if a 2 or 3 band placebo is good, an 11 band placebo is even
better!! :)

Where do these 11 bands come from ?
Somebody's vivid imagination, no doubt...

--
Sloth Kills!
http://www.geocities.com/slothkills/
 
"reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote in message
news:2r62cbF16ql3jU1@uni-berlin.de...
I thought I will buy a radar detector . I go look in Target and what
the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?

Where do these 11 bands come from ? How do these detectors even work ?
Don't tell me they send out 11 different alert tones (as if I can
decode
them at 95 mile an hour) ?

Is it even worth buying one ?

Looks like you are better off obeying speed limits & using other
tactics
like go with the flow of traffic etc

Also I always wondered ..... if the radar gun transmits a PCM signal
can it
not be made
undetectable to detectors ? If the detector cannot decode the
transmitted
code how can it
detect it ? Why is the police not using it ? If the police gun can
randomly
preset & vary the code of the
PCM signal , would it not render it undetectable by a detector
(unless the
detector has matching PCM
code to receive it ..............am I missing something here ) ? Of
course
the transmitting gun can detect the bounced back signal as it would be
synched to transmitted code.
What's with all the spaces ?

I know that one band is for Laser or LIDAR.
 
"Starwolf" <Not Today Eh?> wrote in message news:drCdnXHye-E7RNDcRVn-
[snip]

Valentine One is the top unit on the market. http://www.valentine1.com
The
Escort line is somewhat less in capability, but may be adequate for
your
needs. http://www.escortradar.com/
When all you speed jockeys find the speed traps, do us a favor and
report them to this URL. http://www.speedtrap.org/
 
"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-076CC6.17422519092004@typhoon.sonic.net...
In article <2r6co0F171025U1@uni-berlin.de>,
"reckeless_homicidal_maniac_highway_terrorist_driver"
_unsafe_at_any_speed@yahoo.com> wrote:

"Timberwoof" <timberwoof.spam@infernosoft.com> wrote in message
news:timberwoof.spam-C0D667.14281819092004@typhoon.sonic.net...

You don't have to demodulate the radar signal to know that it is a
radar
signal.

Ummmmmmmmm.......interesting. Then only the simple detection of the
carrier
frequncey (aka the "modulated" freqyency) is a sufficient condition
and the
"modulating" frequency is irrelevant ?

What relevant information does the modulation give you? Who else uses
radar on
public streets and highways? If you're being lit up by something other
than a
cop, you either don't care or you're in way deeper doodoo than with
just a cop.

There are hundreds of automatic door openers that work in the same bands
as the radar detectors, so as you go by a supermarket or dept store,
your detector is likely to go off. But then you're not usually
traveiling very fast when that happens.

--
Timberwoof <me at timberwoof dot com
faq: http://www.timberwoof.com/motorcycle/faq.shtml
bike: http://www.timberwoof.com/motorcycle
 
"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote
in message news:10ksu3ggrpc3662@corp.supernews.com...
There are hundreds of automatic door openers that work in the same bands
as the radar detectors, so as you go by a supermarket or dept store,
your detector is likely to go off. But then you're not usually
traveiling very fast when that happens.
Unless the highway happens to be next to a major shopping mall.

Norm
 
On Sun, 19 Sep 2004 14:44:28 -0400, "reckeless_homicidal_maniac_highway_terrorist_driver"
<_unsafe_at_any_speed@yahoo.com> wrote:

I thought I will buy a radar detector . I go look in Target and what the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?

Where do these 11 bands come from ?
Different bands are used for different things in different countries.
It is important to be able to disable or at least differentiate between them, e.g. in the UK X-band
is used for door-openers and traffic light flow sensors but not speed traps, so you want to be able
to ignorte these.

How do these detectors even work ?
They are radio receivers.

Don't tell me they send out 11 different alert tones (as if I can decode
them at 95 mile an hour) ?
Probably not.
Is it even worth buying one ?
Possibly. You need every defence you can get against the present cash-driven policing policies.

Looks like you are better off obeying speed limits & using other tactics
like go with the flow of traffic etc
Going with the flow of the traffic is not necessarily going to work - some forces target 'naturally
fast' stretches of roads for maximum revenue.


Also I always wondered ..... if the radar gun transmits a PCM signal can it
not be made
undetectable to detectors ? If the detector cannot decode the transmitted
code how can it
They detect the carrier, regardless of the modulation.
If someone speaks to you a foreign language, you can still tell that they are speaking.
 
"Norm Dresner" <ndrez@att.net> wrote in message
news:s4v3d.399215$OB3.74096@bgtnsc05-news.ops.worldnet.att.net...
"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com
wrote
in message news:10ksu3ggrpc3662@corp.supernews.com...

There are hundreds of automatic door openers that work in the same bands
as the radar detectors, so as you go by a supermarket or dept store,
your detector is likely to go off. But then you're not usually
traveiling very fast when that happens.


Unless the highway happens to be next to a major shopping mall.
How many LE agencies use always-on X band? A decent detector should handle
false-positives properly. (As well as a real threat in the same vicinity as
the false-positive.)


--
Mike Lynch
'04 FLHTCUI
'When this sign is under water, this road is impassable.' -posted on a
Tennessee highway
 
There are hundreds of automatic door openers that work in the same bands
as the radar detectors, so as you go by a supermarket or dept store,
your detector is likely to go off. But then you're not usually
traveiling very fast when that happens.
And, since the V1 locator would show it as coming from the side (instead
of front/back) you would know it was a lower-risk bogie. Gotta love the
locator function that no one else has!
--

Mark Johnson, Ft Worth; IBA#288; CM#1; EOB, DoD#2021; LPR#50
2003 FJR1300 "E˛"; http://www.bikes-n-spikes.org
 
"Starwolf" <Not Today Eh?> wrote in message news:<drCdnXHye-E7RNDcRVn-tw@comcast.com>...
"reckeless_homicidal_maniac_highway_terrorist_driver"
_unsafe_at_any_speed@yahoo.com> wrote in message
news:2r62cbF16ql3jU1@uni-berlin.de...
I thought I will buy a radar detector . I go look in Target and what the
bloody hell
11 bands ..is it a Cable TV or a radar detector ?

Valentine One is the top unit on the market. http://www.valentine1.com The
Escort line is somewhat less in capability, but may be adequate for your
needs. http://www.escortradar.com/
I would recommend the highline Cobra series over the Escort stuff.

I run a Cobra 11-band on my bikes and it has saved my ass about a
hundred times. It is very sensitive, and I've even had it alert me to
laser emissions as the car in front of me was being painted by badged
tax collectors, standing on foot at the roadside.

No matter what type of vehicle you drive, everyone should equip
themselves with a radar detector of some sort. As we all know, the
speed enforcement racket's purpose is almost exclusively to generate
revenue. Don't allow yourself to be illegally taxed by
state-sanctioned bandits if you can help it.

Regards,

Tim Kreitz
2003 ZX7R
2000 ZX6R
DoD #2184
http://www.timkreitz.com
http://superbikeblog.blogspot.com
----------------------------------------------------
Don't stare into the sun, even if your eyes are cold.
----------------------------------------------------
 
In article <timberwoof.spam-AED70E.17440019092004@typhoon.sonic.net>,
Timberwoof <timberwoof.spam@infernosoft.com> wrote:
The radar being transmitted is modulated at some other, more manageable
frequency. The receiver part of the radar gun detects that second frequency and
compares it to the original. So yes, Doppler shift is involved, but it's
technically easier to detect it on a modulated signal.
Some newer radar may work that way but your classic speed radar uses a
carrier wave only.

LIDAR uses PCM, though.
 
In article <2r7vlrF15l7rcU1@uni-berlin.de>,
Tinman <mlynch@REMOVEMEcitlink.net> wrote:
How many LE agencies use always-on X band? A decent detector should handle
false-positives properly. (As well as a real threat in the same vicinity as
the false-positive.)
There are lots and lots of K band door openers now. In fact, where I live,
most cops have switched over to Ka!


--

Surendar Jeyadev jeyadev1@wrc.xerox.com

Remove 1 for email address
 

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