Doppler Radar
 

On Sun, 8 Jan 2006 09:34:41 -0800, "RST Engineering"
wrote:

Precisely the plan, Wes. The horn serves two purposes. One, it alerts the
transgressor that they pushed the button. Two, it alerts me to fire up the
truck and block the road.

As others have pointed out, a two pressure hose setup and some simple math
in a microprocessor of some sort would serve the same purpose at far less
current draw, but I'd like to try the radar gun first.

Hell, Jim Thompson went on for two weeks about how to detect a school bus
pulling up in front of the house. I thought this one would go on for at
LEAST as long {;-)

BTW, Jim, what was your ultimate solution to that problem?

Jim

[snip]

Sit in my office from 7:45-8:00AM, so I'm looking out the window ;-)

What I am going to try, when I have the time, is a suggestion that
colored LED's make color-sensitive detectors.

...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.

Doppler Radar
 

Hello Jim,

Since you said this is a road with very little traffic can't you just
rig up two IR sensing paths? Like on garage doors? It's unlikely that
there'd be two cars passing each other in opposite direction.

Then all you'd need would be a ramp generator that gets started by
whichever IR sensor goes first. It is reset by the other sensor. If the
reset occurs and the ramp voltage didn't reach a set threshold that
means whatever triggered it was going to fast.

Regards, Joerg

http://www.analogconsultants.com

Doppler Radar
 

On Sun, 08 Jan 2006 14:42:32 GMT, Fred Bloggs
wrote:



Wes Stewart wrote:


28-628. Rights of real property owners

This chapter does not prevent the owner of real property that is used
by the public for purposes of vehicular travel by permission of the
owner and not as a matter of right from:

1. Prohibiting that use.

2. Requiring other, different or additional conditions than those
specified in this chapter.

3. Otherwise regulating the use as deemed best by the owner.

In other words, I get to regulate the speed (I've posted it as 10
MPH). I have no power to fine UPS, but I can still cost them money.

You are not reading the wording carefully; it is the "not as a matter of
right from" that you are missing. It very well may be a matter of right
if the private road is co-owned by the other property holders and this
ownership allows them the right to transact business in the way of
receiving deliveries as they choose.

Gray area. The road is not co-owned by the other property owners. At
least my deed doesn't say a thing about me co-owning a piece of the
property between the public street and me.

Besides, I'm not going to stop the delivery, I'm just going to do some
"traffic calming" when the truch is leaving.

What you're trying to tell me is that I've given up complete control
of an easement and if the truck drivers want to go 100 MPH I have no
say in the matter. If I were to call the Sheriff's office I'd be
told, "It's private property, we can't do a thing." If I asked the
county to grade it I would be told to kiss off. If someone got hurt
on the easement, I would be liable. When I bought the place the title
company had a hissy fit because there wasn't a road maintenance
agreement in place. It took the appraiser writing something to the
effect that this was a typical situation in this area, and that each
property owner maintained the road on his easement, before the company
would issue title insurance.

Sounds to me like I do have some say so over the property.

Doppler Radar
 

Dan Richardson wrote:
On Sat, 7 Jan 2006 11:28:12 -0800, "RST Engineering"
wrote:

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this thing,
just build one. A surplus source would be ideal.

Ramsey makes a kit. You can find the info he

http://www.youdoitelectronics.com/id..._radar_kit.htm

Danny, K6MHE

no offense but:

ramsey's kiit emits all of about 500 microwatts at 1.6 ghz, useless
for dogs, but Ok for part 15 radar of cars.

try www.shfmicro.com

Steve Roberts

Doppler Radar
 

"Wes Stewart" wrote in message
...

Gray area. The road is not co-owned by the other property owners. At
least my deed doesn't say a thing about me co-owning a piece of the
property between the public street and me.

Besides, I'm not going to stop the delivery, I'm just going to do some
"traffic calming" when the truch is leaving.

What you're trying to tell me is that I've given up complete control
of an easement and if the truck drivers want to go 100 MPH I have no
say in the matter. If I were to call the Sheriff's office I'd be
told, "It's private property, we can't do a thing." If I asked the
county to grade it I would be told to kiss off. If someone got hurt
on the easement, I would be liable. When I bought the place the title
company had a hissy fit because there wasn't a road maintenance
agreement in place. It took the appraiser writing something to the
effect that this was a typical situation in this area, and that each
property owner maintained the road on his easement, before the company
would issue title insurance.

Sounds to me like I do have some say so over the property.


Wes,

Since you have to maintain your portion of the easement, why not build
some "road humps" so the delivery trucks have to slow down or risk
having to resort all the parcels in the back?

--
James T. White

Doppler Radar
 

Good idea, Joerg. Where do I get onesie-twosie IR sensors that will trigger
at 3 meters or better?

Jim



"Joerg" wrote in message
om...
Hello Jim,

Since you said this is a road with very little traffic can't you just rig
up two IR sensing paths?

Doppler Radar
 

"RST Engineering (jw)" wrote in message
...
You are one of the idiots I don't ever want to live next to. We can
talk to
the parents until we are blue in the face and the kids are going to be
....
kids.

Please butt out of this conversation.

Ji

Jim,

What makes you think the kids won't drive as fast as they can just to
set off your new speed activated siren and **** you off?

--
James T. White

Doppler Radar
 

Wes...

I'm not a lawyer, nor do I play one on newsgroups. However, having spent a
dozen years in the highest public office in this county and sorting this
sort of crap out week after week, you have ABSOLUTE control over the
easement.

You cannot PROHIBIT transit over the easement, but you can establish
"reasonable" controls over passage. A locked gate with "reasonable" access
to the keys is OK. A chain that you have to get out of your vehicle to
unlock is reasonable. Ten gates with keys may be reasonable or
unreasonable, depending on your county judge.

Best wishes, and thanks for your help.

Jim


What you're trying to tell me is that I've given up complete control
of an easement

Doppler Radar
 

Because road humps expose you to liability for that sort of stuff...like
wheel alignments and the like due to the fact that there is no national or
regional standard for "road humps". Trust me, I'm in a court case like this
right now and nobody can present evidence for the correct design of "road
humps".

Jim


Since you have to maintain your portion of the easement, why not build
some "road humps" so the delivery trucks have to slow down or risk
having to resort all the parcels in the back?

Doppler Radar
 

Quite frankly, I don't give a hairy rat's ass for your practical or
political opinion. ATFQ from a technical point of view or butt out. I can
take care of the rest of it myself.

Jim



"James T. White" wrote in message
...
What makes you think the kids won't drive as fast as they can just to
set off your new speed activated siren and **** you off?

--
James T. White

Doppler Radar
 

In article ,
says...
You are one of the idiots I don't ever want to live next to. We can talk to
the parents until we are blue in the face and the kids are going to be ...
kids.

Gee, and technological solutions to social problems always work SO well.

-- jm

------------------------------------------------------
http://www.qsl.net/ke5fx
Note: My E-mail address has been altered to avoid spam
------------------------------------------------------

Doppler Radar
 

On Sun, 8 Jan 2006 20:06:47 -0800, "RST Engineering"
wrote:

Wes...

I'm not a lawyer, nor do I play one on newsgroups. However, having spent a
dozen years in the highest public office in this county and sorting this
sort of crap out week after week, you have ABSOLUTE control over the
easement.

You cannot PROHIBIT transit over the easement, but you can establish
"reasonable" controls over passage. A locked gate with "reasonable" access
to the keys is OK. A chain that you have to get out of your vehicle to
unlock is reasonable. Ten gates with keys may be reasonable or
unreasonable, depending on your county judge.

Actually, there is a gate at the street. We used to close it at least
at night, although for some reason that slowly ended. It was never
locked, but the sight of it closed stopped a lot of casual traffic
that didn't belong here.


Best wishes, and thanks for your help.

Good luck with the project!

Doppler Radar
 

On Sun, 8 Jan 2006 20:09:39 -0800, "RST Engineering"
wrote:

Because road humps expose you to liability for that sort of stuff...like
wheel alignments and the like due to the fact that there is no national or
regional standard for "road humps". Trust me, I'm in a court case like this
right now and nobody can present evidence for the correct design of "road
humps".

Jim


Since you have to maintain your portion of the easement, why not build
some "road humps" so the delivery trucks have to slow down or risk
having to resort all the parcels in the back?


There are speed bumps all over this valley on CITY-maintained streets,
as well as speed bumps in many shopping centers.

Since I've not heard of a suit, you might look into Arizona law as to
what's legal and extrapolate to your situation.

BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

...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.

Doppler Radar
 

"Jim Thompson" wrote in
message ...
BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

Can you give me the address of such an intersection? I'd like to look at
some on google maps for background on a local street-improvement project.

Doppler Radar
 

In rec.radio.amateur.homebrew Richard Henry wrote:

"Jim Thompson" wrote in
message ...
BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

Can you give me the address of such an intersection? I'd like to look at
some on google maps for background on a local street-improvement project.

Google for "chicane"; that's the generic name for tight wiggle-like
features built into roads and streets to force traffic to slow down.

--
Mike Andrews, W5EGO

Tired old sysadmin

Doppler Radar
 

On Mon, 9 Jan 2006 07:53:36 -0800, "Richard Henry"
wrote:


"Jim Thompson" wrote in
message ...
BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

Can you give me the address of such an intersection? I'd like to look at
some on google maps for background on a local street-improvement project.


Google Earth...

Intersection of Cholla St. and 68th St., Scottsdale, AZ 85254

LAT 33.589390°

LON -111.935610°

There are quite a few of this type in Scottsdale and in Carefree/Cave
Creek, AZ.

Phoenix tends toward speed bumps, but is also looking into
round-abouts.

Scroll a few blocks SW from there to the NW corner of Desert Cove and
66th St., and you'll see the acre I lived on from 1969 to 1994.

I always referred to the Cholla/68th St. intersection as the "drunk
catcher", because there's a dip there as well... rain drain channel
;-)

...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.

Doppler Radar
 

Scott wrote:
How about a gate at the end of the road that can be opened by the users
with a garage door opener, ie a gated community of sorts. If it's a
private road, keep others off.

How about a gate that opens automatically if approached below a certain
speed, but if approached above it locks closed and will not open until
the vehicle backs up 100 feet and returns slowly.

Doppler Radar
 

"Mike Andrews" wrote in message
...
In rec.radio.amateur.homebrew Richard Henry wrote:

"Jim Thompson" wrote in
message ...
BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

Can you give me the address of such an intersection? I'd like to look
at
some on google maps for background on a local street-improvement
project.

Google for "chicane"; that's the generic name for tight wiggle-like
features built into roads and streets to force traffic to slow down.

Our local problem is a street that is normally lightly-travelled, but gets
congested during the morning and afternoon because of traffic to/from the
high school. The city has proposed widening the whole length (it varies
from 50-year-old twisty 2-lane to modern 6-lane boulevard over the stretch
in question) and a local group has proposed traffic circles at 4 critical
interrsections.

Doppler Radar
 

On Mon, 9 Jan 2006 07:53:36 -0800, "Richard Henry"
wrote:


"Jim Thompson" wrote in
message ...
BTW, Scottsdale also uses tight-ass round-abouts to slow traffic...
you have to slow or you'll rollover.

Can you give me the address of such an intersection? I'd like to look at
some on google maps for background on a local street-improvement project.

http://trafficcalming.org/

Doppler Radar
 

Hello Jim,

Good idea, Joerg. Where do I get onesie-twosie IR sensors that will trigger
at 3 meters or better?


No idea but one source might be remote controls and the corresponding
receiver diode in the set or from a stereo. I bet that Radio Shack will
have something if there still is one in your area (our became a cell
phone store). You'd need a crude reflector on the other side, piece of
metal or white board.

Another source might be if someone replaces their garage door opener.
They usually come complete with the child protect barrier and most
people will throw out the old one.

Thing is, you need at least two sets. The LEDs could be running all the
time and you just have to sense the receive elements.

There is yet one more method: Two coils next to the road, each with
oscillator. On fence posts, wherever. A car will de-tune it or, if set
on the edge of the stable feedback range, would stop the oscillator
momentarily. In contrast to the IR method and the Doppler method this
can be made pretty weather proof from cheap wire.

Regards, Joerg

http://www.analogconsultants.com

Doppler Radar
 

On Sat, 07 Jan 2006 11:28:12 -0800, RST Engineering wrote:

Back in the '60s and early '70s I did some work with Impatt and Gunn diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this thing,
just build one. A surplus source would be ideal.

It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed some
agreed upon limit, the carnage will continue.

Just call your local cop shop, and find out where they get their radar
guns - if these kids are posing a threat to life and limb, the cops might
come out and do it for you.

Good Luck!
Rich

Doppler Radar
 

On Sat, 07 Jan 2006 11:28:12 -0800, RST Engineering wrote:

Back in the '60s and early '70s I did some work with Impatt and Gunn diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this thing,
just build one. A surplus source would be ideal.

It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed some
agreed upon limit, the carnage will continue.

Get a piece of baling wire, and tie two garbage cans together, one on
either side of the alleyway, with the wire about 18" (1/2M) off the ground.

That should slow the little *******s down! :-

Good Luck!
Rich

Doppler Radar
 

On Sun, 08 Jan 2006 00:28:59 +0000, Joerg wrote:

Hello Brian,

Keep the dogs under control as responsible people keep their children under
control.

Even then it can still happen and we all have to use our cars carefully.
One kid didn't get injured because I was going 15mph in a 25mph zone
(the street where we live). It dashed out when the garage was opened,
zooming into the road from behind a van. Couldn't see it coming but I
never go faster on that street, for that very reason. I came to a stop
about one foot before the child.


I was once in a parking lot, and just kind of _knew_ that some kid was
going to run out in front of me, and not a second later, there came the
ball and the kid. I had already stopped.

Cheers!
Rich

Doppler Radar
 

On Sun, 08 Jan 2006 12:13:49 +1300, Ken Taylor wrote:

"RST Engineering (jw)" wrote in message
...
Why would I care if it triggered a radar detector? In fact, it would be
BETTER if it didn't trigger a detector.

Jim

Why? Don't you intend to trigger a siren to slow them down? What's it matter
if they slow down because of their dectors - they slow down, and that would
appear to be the important thing.


Nah - It's Jim @ RST - he wants to nail somebody so he can kick their ass.

Cheers!
Rich

Doppler Radar
 

On Sun, 08 Jan 2006 07:35:15 -0700, Wes Stewart wrote:

On Sat, 7 Jan 2006 14:47:08 -0800, "RST Engineering"
wrote:

What illegal? I can either retune it for a ham band or reduce power if
necessary. I'll find the hardware first and figure out the legal later.

Well, I know I'm going to be asked to leave this discussion but,
technically, unless you are IDing with your call sign every 10
minutes. it would be illegal. I seriously doubt that this was in your
plan.

Police radar guns, should you come up with one, are also licensed to
the department, assuming the cops are following the law, always a
dubious proposition.

So, because these are -technical- newsgroups, I was being -technical-.

Now for a "prohibited" non-technical suggestion, here is one that I am
contemplating. I too live on a short, private, single-lane road, that
serves four multi-acre homesites. I am plagued by the guys driving
delivery trucks (DHL, UPS, etc) who roar down the road in a cloud of
dust while delivering to my neighbors. I have complained to UPS
repeatedly without success.

So one of these days, when I'm up to it, after they go by on the way
to the neighbor's house, I'm going to take my truck out and block the
road for 15 minutes. (A second offense will call for a penalty of 30
minutes, etc) UPS seems to have a deal with law enforcement that
exempts them from speed limits on public roads, but in AZ the statutes
say:

28-628. Rights of real property owners

This chapter does not prevent the owner of real property that is used
by the public for purposes of vehicular travel by permission of the
owner and not as a matter of right from:

1. Prohibiting that use.

2. Requiring other, different or additional conditions than those
specified in this chapter.

3. Otherwise regulating the use as deemed best by the owner.

In other words, I get to regulate the speed (I've posted it as 10
MPH). I have no power to fine UPS, but I can still cost them money.

Put up a gate and charge them $1.00 in and $100.00 out. ;-)

Good Luck!
Rich

Doppler Radar
 

On Sun, 08 Jan 2006 15:37:05 -0700, Wes Stewart wrote:

On Sun, 08 Jan 2006 14:42:32 GMT, Fred Bloggs
wrote:



Wes Stewart wrote:


28-628. Rights of real property owners

This chapter does not prevent the owner of real property that is used
by the public for purposes of vehicular travel by permission of the
owner and not as a matter of right from:

1. Prohibiting that use.

2. Requiring other, different or additional conditions than those
specified in this chapter.

3. Otherwise regulating the use as deemed best by the owner.

In other words, I get to regulate the speed (I've posted it as 10
MPH). I have no power to fine UPS, but I can still cost them money.

You are not reading the wording carefully; it is the "not as a matter of
right from" that you are missing. It very well may be a matter of right
if the private road is co-owned by the other property holders and this
ownership allows them the right to transact business in the way of
receiving deliveries as they choose.

Gray area. The road is not co-owned by the other property owners. At
least my deed doesn't say a thing about me co-owning a piece of the
property between the public street and me.

Besides, I'm not going to stop the delivery, I'm just going to do some
"traffic calming" when the truch is leaving.

What you're trying to tell me is that I've given up complete control
of an easement and if the truck drivers want to go 100 MPH I have no
say in the matter. If I were to call the Sheriff's office I'd be
told, "It's private property, we can't do a thing." If I asked the
county to grade it I would be told to kiss off. If someone got hurt
on the easement, I would be liable. When I bought the place the title
company had a hissy fit because there wasn't a road maintenance
agreement in place. It took the appraiser writing something to the
effect that this was a typical situation in this area, and that each
property owner maintained the road on his easement, before the company
would issue title insurance.

Sounds to me like I do have some say so over the property.

Can you say, "speed bump?"

Good Luck!
Rich

Doppler Radar
 

On Sat, 07 Jan 2006 18:30:06 -0800, RST Engineering (jw) wrote:

You are one of the idiots I don't ever want to live next to. We can talk to
the parents until we are blue in the face and the kids are going to be ...
kids.

Please butt out of this conversation.


If this is the kind of attitude that you're displaying to your neighbors,
then it's no wonder that the kids are punishing you.

Are you such a crusty old crank in real life?

Just shoot their tires out then.

Thanks,
Rich


Ji



"James T. White" wrote in message
...

So go have a talk with the parents in the other three families and ask
them to get control of their kids. Better yet, send the responsible
ones a bill for your new dog.

--
James T. White

Doppler Radar
 

On Sun, 08 Jan 2006 20:00:17 -0800, RST Engineering wrote:

Good idea, Joerg. Where do I get onesie-twosie IR sensors that will trigger
at 3 meters or better?


Look at garage door opener safety electric eye thingies. ;-)

Cheers!
Rich

Jim



"Joerg" wrote in message
om...
Hello Jim,

Since you said this is a road with very little traffic can't you just rig
up two IR sensing paths?

Doppler Radar
 

I don't know where this thread went, but... Perhaps I missed it, but try
searching on Gunplexer.

That should get you to the ham sites where such things are talked about and
sources named. Hams use them on 10 GHz and it would be a simple matter to
detect the Doppler freq and do some sort of frequency detect.

Oh hell. here's some of my links:
http://www.g3pho.free-online.co.uk/m...s/wideband.htm
http://www.kwarc.org/10ghz/10GHZ-4.htm


73, Steve, K,9.D;C'I


"RST Engineering" wrote in message
...
Back in the '60s and early '70s I did some work with Impatt and Gunn
diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this
thing,
just build one. A surplus source would be ideal.

It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed
some
agreed upon limit, the carnage will continue.


Regards,


Jim

Doppler Radar
 

On Mon, 9 Jan 2006 17:00:44 -0600, "Steve Nosko"
wrote:

I don't know where this thread went, but... Perhaps I missed it, but try
searching on Gunplexer.

It went the way of all neighborly, over the backyard fence
discussions.

This is usenet, remember. Totally typical and often informative (and
often not) [g].

Doppler Radar
 

RST Engineering wrote:

Back in the '60s and early '70s I did some work with Impatt and Gunn diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this thing,
just build one. A surplus source would be ideal.

It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed some
agreed upon limit, the carnage will continue.

A strobe light. The radar 'your speed is..' signs don't do much to
discourage the a*holes. They just try to see what sort of quarter mile
speed they can hit.

The ones with the strobe make them wonder whether they'll be getting one
of those photo tickets in the mail.

--
Paul Hovnanian
------------------------------------------------------------------
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.
-- Etaoin Shrdlu

Doppler Radar
 

On Mon, 09 Jan 2006 18:07:47 -0800, "Paul Hovnanian P.E."
wrote:

RST Engineering wrote:

Back in the '60s and early '70s I did some work with Impatt and Gunn diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.

Is there a cheap source for onesies-twosies of a radar front-end that will
give me doppler audio as a function of a large metal object's speed at a
range of 20 meters or so? I don't need to go into production on this thing,
just build one. A surplus source would be ideal.

It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed some
agreed upon limit, the carnage will continue.

A strobe light. The radar 'your speed is..' signs don't do much to
discourage the a*holes. They just try to see what sort of quarter mile
speed they can hit.

The ones with the strobe make them wonder whether they'll be getting one
of those photo tickets in the mail.

How about a sign that says, "Shotgun automatically triggered when
speed exceeds 25MPH" ?:-)

...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.

Doppler Radar
 

On Mon, 09 Jan 2006 19:23:32 -0700, Jim Thompson wrote:
On Mon, 09 Jan 2006 18:07:47 -0800, "Paul Hovnanian P.E."
RST Engineering wrote:
....
It seems that the little kids on our rural country lane have all become
teenagers at once and are trying to outdo the others in how fast they can
drive daddy's car up and down the lane. We've lost one dog this week and
unless I can put up some sort of a siren that goes off when they exceed some
agreed upon limit, the carnage will continue.

A strobe light. The radar 'your speed is..' signs don't do much to
discourage the a*holes. They just try to see what sort of quarter mile
speed they can hit.

The ones with the strobe make them wonder whether they'll be getting one
of those photo tickets in the mail.

How about a sign that says, "Shotgun automatically triggered when
speed exceeds 25MPH" ?:-)

...Jim Thompson

Leave it to Thompson to come up with one that involves lethal violence.
At least the booby-trap I suggested only involves noise and damage to
the car's paint ( and maybe sheet metal, depending how fast they're going
and what's in the garbage cans. )

Cheers!
Rich

Doppler Radar
 

Jim Thompson wrote:

How about a sign that says, "Shotgun automatically triggered when
speed exceeds 25MPH" ?:-)

Jim Thompson


This from someone who brags about speeding? I say go for it,
anywhere you normally drive. If it works out ok on you, they can try it
in other cities.

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Doppler Radar
 

On Sat, 7 Jan 2006 18:25:20 -0800, "RST Engineering"
wrote:

What a fu**ing jerk. I asked a technical question in a technical newsgroup.
I expect a technical answer.

As to your political and ethical questions to my question, go find another
newsgroup to tell others how to live.

I just wonder why you are posting to an amateur radio newsgroup ?

Your rambling about speed traps has nothing to do with amateur radio.

Paul OH3LWR

Doppler Radar
 

"Jim Thompson" wrote in
message ...
snip
Google Earth...

Intersection of Cholla St. and 68th St., Scottsdale, AZ 85254

LAT 33.589390°

LON -111.935610°

There are quite a few of this type in Scottsdale and in Carefree/Cave
Creek, AZ.

Phoenix tends toward speed bumps, but is also looking into
round-abouts.

Scroll a few blocks SW from there to the NW corner of Desert Cove and
66th St., and you'll see the acre I lived on from 1969 to 1994.

I always referred to the Cholla/68th St. intersection as the "drunk
catcher", because there's a dip there as well... rain drain channel
;-)

...Jim Thompson

Anyone point me to how do you enter Latitude and Longitude into Google
Earth?

Regards
Ian

Doppler Radar
 

On Tue, 10 Jan 2006 14:49:12 -0000, "Ian"
wrote:


"Jim Thompson" wrote in
message ...
snip
Google Earth...

Intersection of Cholla St. and 68th St., Scottsdale, AZ 85254

LAT 33.589390°

LON -111.935610°

There are quite a few of this type in Scottsdale and in Carefree/Cave
Creek, AZ.

Phoenix tends toward speed bumps, but is also looking into
round-abouts.

Scroll a few blocks SW from there to the NW corner of Desert Cove and
66th St., and you'll see the acre I lived on from 1969 to 1994.

I always referred to the Cholla/68th St. intersection as the "drunk
catcher", because there's a dip there as well... rain drain channel
;-)

...Jim Thompson

Anyone point me to how do you enter Latitude and Longitude into Google
Earth?

Regards
Ian


I don't know either, I just put in Cholla & Scottsdale Rd, Scottsdale,
AZ 85254 and then scrolled west.

I then read off and noted the latitude and longitude in case someone
knew how to do it directly.

...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.

Doppler Radar
 

On Tue, 10 Jan 2006 08:23:20 -0700, the renowned Jim Thompson
wrote:

On Tue, 10 Jan 2006 14:49:12 -0000, "Ian"
wrote:


"Jim Thompson" wrote in
message ...
snip
Google Earth...

Intersection of Cholla St. and 68th St., Scottsdale, AZ 85254

LAT 33.589390°

LON -111.935610°

There are quite a few of this type in Scottsdale and in Carefree/Cave
Creek, AZ.

Phoenix tends toward speed bumps, but is also looking into
round-abouts.

Scroll a few blocks SW from there to the NW corner of Desert Cove and
66th St., and you'll see the acre I lived on from 1969 to 1994.

I always referred to the Cholla/68th St. intersection as the "drunk
catcher", because there's a dip there as well... rain drain channel
;-)

...Jim Thompson

Anyone point me to how do you enter Latitude and Longitude into Google
Earth?

Regards
Ian


I don't know either, I just put in Cholla & Scottsdale Rd, Scottsdale,
AZ 85254 and then scrolled west.

I then read off and noted the latitude and longitude in case someone
knew how to do it directly.

...Jim Thompson

Try pasting this into the search bar:

33 30 11.57N 111 55 46.22W



Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Doppler Radar
 

"Spehro Pefhany" wrote in message
...

Try pasting this into the search bar:

33 30 11.57N 111 55 46.22W



Best regards,
Spehro Pefhany

Thanks, Spehro, I'll try that tonight (Google Earth doesn't like my ancient
graphics card at work).

Regards
Ian

Doppler Radar
 

Spehro Pefhany wrote...

Try pasting this into the search bar:
33 30 11.57N 111 55 46.22W

Try this one in Hybrid mode, Google has you driving off
an unfinished bridge, 42.370831,-71.066555 :-)


--
Thanks,
- Win