PRC as a amplifier in GPS question.

[JosephKK]

On Sat, 3 May 2008 22:04:53 +1000, "David L. Jones"
<altzone@gmail.com> wrote:

I just saw Ironman at the movies - awesome stuff.
Oodles of leading edge technology gadgets in it, some plausible, others not
so plausible.
Definitely a must-see movie for any electronics and techno gadget buff.
Gotta love any movie with soldering iron action.
Deserves all the rave reviews it's been getting.

Dave.

Yea, but it shows some fool hammering on a piece of hot metal too. I
mean how 18th century. Dogs, at least show some precision casting
instead.

 

[boB]

On Mon, 5 May 2008 23:53:50 +1000, "Phil Allison"
<philallison@tpg.com.au> wrote:

"Phil in Melbourne"

I want to PWM a whole lot of LEDs. The current consumption of the bank of
LEDs is in the order of 15 Amps, at 12V.

For reasons I won't go into, my only option is to use a high side mosfet.

Another option would be to use a pulse transformer, and maybe some
caps and diodes to drive the FET from a low side driver.

** How very dubious ....


I have chosen an N-channel MOSFET (IRL3803) mainly because of its huge
current capability and very low on resistance of 7 milli ohms.

I am hoping to use PWM at a reasonably high frequency, say 20khz or
higher,


** What the bloody hell for ?????

That is just as idiotic and dubious as your first requirement.


and I want to use an efficient MOSFET driver IC that is designed for the
job.


** YOU want FAR too many weird sounding things YOU cannot JUSTIFY !!

So THAT makes YOU another fuckwit, time wasting, PITA fucking TROLL.


Try proving me wrong, anytime - pal.



..... Phil

So it looks like this one's a bit over your head, huh ?

bob

 

[D from BC]

On Tue, 06 May 2008 21:55:39 -0700, JosephKK <quiettechblue@yahoo.com>
wrote:

On Sat, 3 May 2008 22:04:53 +1000, "David L. Jones"
altzone@gmail.com> wrote:

I just saw Ironman at the movies - awesome stuff.
Oodles of leading edge technology gadgets in it, some plausible, others not
so plausible.
Definitely a must-see movie for any electronics and techno gadget buff.
Gotta love any movie with soldering iron action.
Deserves all the rave reviews it's been getting.

Dave.


Yea, but it shows some fool hammering on a piece of hot metal too. I
mean how 18th century. Dogs, at least show some precision casting
instead.

Maybe he was just hammering out the defects from a crappy casting

What bugged me was that the G-forces would probably kill Ironman.
Hit by shell.
Hit by an airplane wing.
Blasted by a missile explosion
Others...

According to
http://en.wikipedia.org/wiki/G_force
"Any exposure to around 100 g or more, even if momentary, is likely to
be lethal, although the record is 179 g"
And

"
Formula One racing car driver David Purley survived an estimated 179.8
g in 1977 when he decelerated from 173 km/h (108 mph) to rest over a
distance of 66 cm (26 inches) after his throttle got stuck wide open
and he hit a wall"

Sure.. the Ironman suit can protect him on the outside but there's
nothing protecting his internal organs from all the shock on the
inside.


D from BC
British Columbia
Canada

 

[John Popelish]

D from BC wrote:
(snip)

What bugged me was that the G-forces would probably kill Ironman.
Hit by shell.
Hit by an airplane wing.
Blasted by a missile explosion

.... hit by a planet.

--
Regards,

John Popelish

 

[Klompmeester]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:68a1tnF2s475iU1@mid.individual.net...

David L. Jones <altzone@gmail.com> wrote:
On May 6, 9:39 am, "Klompmeester" <whowh...@andwhy.com> wrote:
"David L. Jones" <altz...@gmail.com> wrote in
messagenews:481e36ea@dnews.tpgi.com.au...





"Klompmeester" <whowh...@andwhy.com> wrote in message
news:KMGdnVbhl5ztQYDVnZ2dnUVZ_u6dnZ2d@internode...

"Rod Speed" <rod.speed....@gmail.com> wrote in message
news:67nnauF2paok8U1@mid.individual.net...
So, who is buying the bloody things.

Anyone with a clue.

Anyone with a clue uses a roadmap and their memory.

They can be incredibly useful.
For instance, try navigating in a foreign country on the wrong side
of the road with a paper street directory, it's a nightmare,
especially if you are going to small non-tourist/non-signposted
locations. With the GPS you barely have to take your eyes and
concentration off the road, even more so when you are the only one
in the car. Only a fool would hire a car these days and not spring
the small extra for the GPS option.

I don't have one in my own car yet, because I see less need for it
in my own city which I know well. But every time I've hired a car
and GPS in another country I've been completely sold on their
incredible usefulness.

No question that they can be useful devices, but would you buy one
and take
it with you? Not likely when purchasing a map for every continent
gets
expensive.

What's your point?

I'd simply weigh up the cost of a map vs the cost of hiring.

And anyone with a clue gets the maps for free.

Don't judge others by your low standards.

Most people do not get their maps for free.

 

[David L. Jones]

On May 2, 8:29 pm, "David L. Jones" <altz...@gmail.com> wrote:

I just stumbled across these:http://www.welec.de/english/05_products/products_01_overview.htm
German "Welec" brand.
Looks incredibly similar to various Agilent offerings (54600, Infinium etc)
in terms of button shape, location, colour, panel silkscreen, and menu
look'n'feel.

I know Rigol design and make the low end Agilents, but this appears to be
something different again.

Plus they are going damn cheap on eBay:http://cgi.ebay.com.au/OSCILLOSCOPE-1-GS-s-200-MHz-2-CH-4-4-VGA-TFT-D...

$699 for a 200MHz, 1GS/s, 16KB, VGA screen scope.

Anyone know anything about these?

Dave.

It turns out that Farnell were silly enough to sell older model Wittig/
Welec brand scopes.
Even listed in the new 2008 catalog.
But conveniently, almost all trace has been wiped from the website.

Dave.

 

[JosephKK]

On Tue, 06 May 2008 23:25:28 -0700, D from BC
<myrealaddress@comic.com> wrote:

On Tue, 06 May 2008 21:55:39 -0700, JosephKK <quiettechblue@yahoo.com
wrote:

On Sat, 3 May 2008 22:04:53 +1000, "David L. Jones"
altzone@gmail.com> wrote:

I just saw Ironman at the movies - awesome stuff.
Oodles of leading edge technology gadgets in it, some plausible, others not
so plausible.
Definitely a must-see movie for any electronics and techno gadget buff.
Gotta love any movie with soldering iron action.
Deserves all the rave reviews it's been getting.

Dave.


Yea, but it shows some fool hammering on a piece of hot metal too. I
mean how 18th century. Dogs, at least show some precision casting
instead.


Maybe he was just hammering out the defects from a crappy casting

What bugged me was that the G-forces would probably kill Ironman.
Hit by shell.
Hit by an airplane wing.
Blasted by a missile explosion
Others...

According to
http://en.wikipedia.org/wiki/G_force
"Any exposure to around 100 g or more, even if momentary, is likely to
be lethal, although the record is 179 g"
And

"
Formula One racing car driver David Purley survived an estimated 179.8
g in 1977 when he decelerated from 173 km/h (108 mph) to rest over a
distance of 66 cm (26 inches) after his throttle got stuck wide open
and he hit a wall"

Sure.. the Ironman suit can protect him on the outside but there's
nothing protecting his internal organs from all the shock on the
inside.


D from BC
British Columbia
Canada

Yep. Even apparently localized shock propagates very well. Thus the
killing power of high velocity projectiles.

 

[Vote out Brendan Nelson]

Sharon's Anonymous Lesbian Fantasy HotBox wrote:

"Alan Parkington" <patriot@iheartaustralia.com.au> writes:

I HAVE A SUPER THICK MASSIVE DICK which towers over the side of Rod
Speed's puny knob.

From
http://www.cnet.com.au/broadband/adsl/0,239035934,339288102,00.htm

Telstra has announced it has finished switching on ADSL2+ at over 900
exchanges to give 2.4 million Australians a theoretical maximum downlink
speed of up to 20 Mbps.

Load of shit PARKY!

Earlier this year, Broadband Minister Stephen Conroy gave the telco the
regulatory assurances it needed to switch on the ADSL2+ network, according
to the company.

However, according to the CEO of the Competitive Carriers Coalition, Dave
Forman, the company's decision to switch on the exchanges did not spring
from the Minister's assurances but from the desire to rebuild its
relationship with the government ahead of the planned rollout of the
national fibre-to-the node (FTTN) broadband network.

Load of shit!

Since February, 907 exchanges have been switched on, Telstra's group MD of
public policy and communications Phil Burgess said, taking some 64 days.

The popular opinion that "all you had to do was flick a switch" is wrong,
said Burgess, adding that although Telstra had the DSLAMs already in place,
it had to dig holes, get personnel to them, decommission old lines and
connect new lines, requiring a massive transfer of resources.

Burgess hopes the rollout will act as a precursor to a future role in the
country's fibre-to-the-node network. "Does it relate to FTTN? Absolutely it
does," Burgess said.

Despite speeds of 20Mbps, Australia is still behind, Burgess said: "This is
great in Australia, but. the rest of the world is going to 100Mbps."

If Australia doesn't wake up, "we're going to be in bad trouble," he added.

When asked how Telstra wanted to achieve 100Mbps, Burgess said the company
was looking at VDSL, saying that under the right conditions it can go up to
100Mbps, and said that FTTN laid the basis for fibre-to-the-home.

"It's all a matter of money," he said.

Load of shit! It's all a matter of VOTES!

The only company that can deliver FTTH (Fibre to the Home) is Optus only

if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

 

[Mr.T]

"Vote out Brendan Nelson" <vote@out.com> wrote in message
news:48248507$0$30460$afc38c87@news.optusnet.com.au...

The only company that can deliver FTTH (Fibre to the Home) is Optus only
if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

Both companies provide FTTH or FTTN in most parts of Melbourne and Sydney
already. Then they realised the take up rate for overpriced cable TV was
less than expected and both companies stopped their roll outs.
Without privatisation and duplication, we could have had one fibre to twice
as many homes instead, and over 99% mobile coverage by now, for no extra
cost.
Too bad for much of Brisbane, Adelaide, Perth and Hobart, not to mention
most country towns of course.

MrT.

 

[Rod Speed]

Mr.T <MrT@home> wrote

Vote out Brendan Nelson <vote@out.com> wrote

The only company that can deliver FTTH (Fibre to the Home) is Optus
only if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

Both companies provide FTTH or FTTN in most parts of Melbourne and Sydney already.

Nope, not in the sense that Telstra is proposing FTTN.

Then they realised the take up rate for overpriced cable TV was
less than expected and both companies stopped their roll outs.

Wrong again. Optarse lost the content war to foxtel and THAT was the reason the rollout stopped.

Telstra only did it because Optarse did it.

Without privatisation and duplication, we could have had one fibre to twice as many homes instead,

Wrong. We wouldnt have seen any FTT* without it.

and over 99% mobile coverage by now, for no extra cost.

Pure fantasy.

Too bad for much of Brisbane, Adelaide, Perth and Hobart, not to mention most country towns of course.

They wouldnt have got it without the telsta monopoly being ripped away.

 

[Vote out Brendan Nelson]

Sharon's Anonymous Lesbian Fantasy HotBox wrote:

"Alan Parkington" <patriot@iheartaustralia.com.au> writes:

I HAVE A SUPER THICK MASSIVE DICK which towers over the side of Rod
Speed's puny knob.

From
http://www.cnet.com.au/broadband/adsl/0,239035934,339288102,00.htm

Telstra has announced it has finished switching on ADSL2+ at over 900
exchanges to give 2.4 million Australians a theoretical maximum downlink
speed of up to 20 Mbps.

Load of shit PARKY!

Earlier this year, Broadband Minister Stephen Conroy gave the telco the
regulatory assurances it needed to switch on the ADSL2+ network, according
to the company.

However, according to the CEO of the Competitive Carriers Coalition, Dave
Forman, the company's decision to switch on the exchanges did not spring
from the Minister's assurances but from the desire to rebuild its
relationship with the government ahead of the planned rollout of the
national fibre-to-the node (FTTN) broadband network.

Load of shit!

Since February, 907 exchanges have been switched on, Telstra's group MD of
public policy and communications Phil Burgess said, taking some 64 days.

The popular opinion that "all you had to do was flick a switch" is wrong,
said Burgess, adding that although Telstra had the DSLAMs already in place,
it had to dig holes, get personnel to them, decommission old lines and
connect new lines, requiring a massive transfer of resources.

Burgess hopes the rollout will act as a precursor to a future role in the
country's fibre-to-the-node network. "Does it relate to FTTN? Absolutely it
does," Burgess said.

Despite speeds of 20Mbps, Australia is still behind, Burgess said: "This is
great in Australia, but. the rest of the world is going to 100Mbps."

If Australia doesn't wake up, "we're going to be in bad trouble," he added.

When asked how Telstra wanted to achieve 100Mbps, Burgess said the company
was looking at VDSL, saying that under the right conditions it can go up to
100Mbps, and said that FTTN laid the basis for fibre-to-the-home.

"It's all a matter of money," he said.

Load of shit! It's all a matter of VOTES!

The only company that can deliver FTTH (Fibre to the Home) is Optus only

if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

 

[Vote out Brendan Nelson]

Sharon's Anonymous Lesbian Fantasy HotBox wrote:

"Alan Parkington" <patriot@iheartaustralia.com.au> writes:

I HAVE A SUPER THICK MASSIVE DICK which towers over the side of Rod
Speed's puny knob.

From
http://www.cnet.com.au/broadband/adsl/0,239035934,339288102,00.htm

Telstra has announced it has finished switching on ADSL2+ at over 900
exchanges to give 2.4 million Australians a theoretical maximum downlink
speed of up to 20 Mbps.

Load of shit PARKY!

Earlier this year, Broadband Minister Stephen Conroy gave the telco the
regulatory assurances it needed to switch on the ADSL2+ network, according
to the company.

However, according to the CEO of the Competitive Carriers Coalition, Dave
Forman, the company's decision to switch on the exchanges did not spring
from the Minister's assurances but from the desire to rebuild its
relationship with the government ahead of the planned rollout of the
national fibre-to-the node (FTTN) broadband network.

Load of shit!

Since February, 907 exchanges have been switched on, Telstra's group MD of
public policy and communications Phil Burgess said, taking some 64 days.

The popular opinion that "all you had to do was flick a switch" is wrong,
said Burgess, adding that although Telstra had the DSLAMs already in place,
it had to dig holes, get personnel to them, decommission old lines and
connect new lines, requiring a massive transfer of resources.

Burgess hopes the rollout will act as a precursor to a future role in the
country's fibre-to-the-node network. "Does it relate to FTTN? Absolutely it
does," Burgess said.

Despite speeds of 20Mbps, Australia is still behind, Burgess said: "This is
great in Australia, but. the rest of the world is going to 100Mbps."

If Australia doesn't wake up, "we're going to be in bad trouble," he added.

When asked how Telstra wanted to achieve 100Mbps, Burgess said the company
was looking at VDSL, saying that under the right conditions it can go up to
100Mbps, and said that FTTN laid the basis for fibre-to-the-home.

"It's all a matter of money," he said.

Load of shit! It's all a matter of VOTES!

The only company that can deliver FTTH (Fibre to the Home) is Optus only

if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

 

[Vote out Brendan Nelson]

Mr.T wrote:

"Vote out Brendan Nelson" <vote@out.com> wrote in message
news:48248507$0$30460$afc38c87@news.optusnet.com.au...
The only company that can deliver FTTH (Fibre to the Home) is Optus only
if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

Both companies provide FTTH or FTTN in most parts of Melbourne and Sydney
already. Then they realised the take up rate for overpriced cable TV was
less than expected and both companies stopped their roll outs.
Without privatisation and duplication, we could have had one fibre to twice
as many homes instead, and over 99% mobile coverage by now, for no extra
cost.
Too bad for much of Brisbane, Adelaide, Perth and Hobart, not to mention
most country towns of course.

MrT.


You can blame John Howard the fucken coward for standing up to Telstra's

bullying tactics to stymie competition and the toothless ACCC for not
doing anything.

 

[Mr.T]

"Vote out Brendan Nelson" <vote@out.com> wrote in message
news:4827d754$0$1021$afc38c87@news.optusnet.com.au...

You can blame John Howard the fucken coward for standing up to Telstra's
bullying tactics to stymie competition and the toothless ACCC for not
doing anything.

I assume you mean NOT "standing up to Telstra's bullying tactics". It
remains to be seen what the Labor party will actually do. Their options have
been severely hampered by LJH's sell off, and importation of foreign
managers with no interest in the public good.

But the Labor party is just as guilty of selling off our infrastructure to
private interests, then ploughing in more public money to prop them up.

MrT.

 

[Michael]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:68l8j4F2sqi8iU1@mid.individual.net...

Mr.T <MrT@home> wrote
Vote out Brendan Nelson <vote@out.com> wrote

The only company that can deliver FTTH (Fibre to the Home) is Optus
only if bloody Telstra backed protesters didn't get in the way in the
late
1990's it could of been done already in the captial cities at least.

Both companies provide FTTH or FTTN in most parts of Melbourne and Sydney
already.

Nope, not in the sense that Telstra is proposing FTTN.

Then they realised the take up rate for overpriced cable TV was
less than expected and both companies stopped their roll outs.

Wrong again. Optarse lost the content war to foxtel and THAT was the
reason the rollout stopped.

Telstra only did it because Optarse did it.

Nope. OP was correct, they both stopped because of money and the fact that
it was costing too much

 

[Rod Speed]

Michael <michael@yahoo.com> wrote

Rod Speed <rod.speed.aaa@gmail.com> wrote
Mr.T <MrT@home> wrote
Vote out Brendan Nelson <vote@out.com> wrote

The only company that can deliver FTTH (Fibre to the Home) is Optus
only if bloody Telstra backed protesters didn't get in the way in the late
1990's it could of been done already in the captial cities at least.

Both companies provide FTTH or FTTN in most parts of Melbourne and Sydney already.

Nope, not in the sense that Telstra is proposing FTTN.

Then they realised the take up rate for overpriced cable TV was
less than expected and both companies stopped their roll outs.

Wrong again. Optarse lost the content war to foxtel and THAT was the reason the rollout stopped.

Telstra only did it because Optarse did it.

Nope.

Yep.

OP was correct,

Nope.

they both stopped because of money and the fact that it was costing too much

Nope. Telstra only ever did cable because Optarse did. Optarse only ever did
their cable rollout because they wanted to get the jump on Telstra with something
more than Telstra could offer and when they lost the content war to foxtel, they
realised that they were never going to make enough money out of cable to
make the extras economically viable, so they stopped their cable rollout.

You've never had a clue about the basics. Thats why you only ever get to clean the dunnys.

 

[What The]

I use a PWM based circuit to drive my LED arrays on parker mode which ends
up in a significant power saving, driving over 60 leds @70ma and the
control board draws less than 50ma (as reported by the regulated power
supply).

A absolutely agree with you. Unless you're able to get the electronics
right to power the LEDs without wasting a large amount of electricity in
order to get the small amount actually needed for the LEDs, there's
going to be little or no gain.

But given that the type of devices being discussed are intended to be
replacements for incandescent globes, the only light in a vehicle newer
than October 1991 in Australia that can be legally converted is the
interior light.

 

[Athol]

In aus.cars What The <none@none.com> wrote:

I use a PWM based circuit to drive my LED arrays on parker mode which ends
up in a significant power saving, driving over 60 leds @70ma and the
control board draws less than 50ma (as reported by the regulated power
supply).

So these are in a pre-10/'91 vehicle, or are you running illegal lights?

--
Athol
<http://cust.idl.com.au/athol> Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.

 

[What The]

"Athol" <athol_SPIT_SPAM@idl.net.au> wrote in message

So these are in a pre-10/'91 vehicle, or are you running illegal lights?

--
Athol
http://cust.idl.com.au/athol> Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.

I admit, i'm running totally illegal modified tail lights that are brigher,
more visible and more reliable than original filament globes... (i.e we're
not talking ebay drop in crap here...)

I was fed up with having problems with the globes being pathetically dim and
decided a well planned LED array would light the housing evenly, smoothly
and provide much better safety and warning to other drivers.

 

[Noddy]

"What The" <none@none.com> wrote in message
news:qDPWj.1195$IK1.231@news-server.bigpond.net.au...

I admit, i'm running totally illegal modified tail lights that are
brigher, more visible and more reliable than original filament globes...
(i.e we're not talking ebay drop in crap here...)

I was fed up with having problems with the globes being pathetically dim
and decided a well planned LED array would light the housing evenly,
smoothly and provide much better safety and warning to other drivers.

Well done.

That's the most elaborate way of saying "I'm a rice boy" I've ever heard

--
Regards,
Noddy.