A good overkill solution would be a diode and a small UPS/exit sign battery. This would make a simple, yet effective UPS unit for the car. No inversion necessary!
You sound like one of those audiophiles. The ESS has a 16 bit ADC/DAC pair with sampling rates which exceed your hearing range. With this low harmonic distortion, the ESS should meet your bid requirements. Unless your hearing is more exceptional than mine, I don't know what you are complaining about.
Why is this notebook 10lbs, and Apple can design one 3 lbs lighter?
I might be able to tell you why. I have the 15" screen Toshiba Satellite 2805-S603, which is just a few inches smaller. Toshiba builds their laptops like tanks. Mine has done a belly flop onto a hardwood floor more than once from the desk. Without crashing or interrupting my desktop applications.
At my work, Toshiba laptops may be regarded as a little bigger, but they take abuse. I have seen them slide off the vehicles onto the floor and strike fixed objects. They still work. That's important, because no one has got into trouble or lost their job for destroying a laptop. That 3 pounds is mighty nice insurance.
They usually measure starter horsepower in kilowatts. If I remember right, a starter in my Honda was rated at 2100 watts, or about 3 horsepower (746 watts per horsepower by definition.) You should get several hundred amps from a good charged car battery when shorted. The speed of the chemical reaction is the limiting factor. High amperage batteries tend to have the plates thinner to pack more in the same place for more amperage generating surface area. Duty cycle is limited due to heat that can make the container unstable.
I noticed other people mentioning lead acid batteries do not like less than 50% charge. At work, I deal with several hundred lead acid forklift batteries that are discharged to 20% daily. That 20% is the cuttoff point for the machines if we want our batteries to last several years. Several cycles down to 0% will pretty much render the batteries useless.
And car/marine batteries make wonderful UPS battery replacements in my experience. The only thing to watch out for is series configurations for larger units that need 240volts DC can be a serious fire/explosion hazard if the batteries get dirty/salty/acid on the cases. I have seen lead acid batteries low as 24 volts that haven't been cleaned burn their covers and catch fire many times. The acid salts will conduct across the cells and break the plastic down to carbon and may release chlorine gas from PVC. Be *very* careful as they pack large amounts of energy and can release this in a slowly developing toxic fireball.
Not only that, but this counter has a sensitivity down to 700uV in some bands. Radios often have a sensitivity of 1uV.
Not the right tool for the job. If it did have the sensitivity of 1uV, it would pick up the entire noise floor of the radio spectrum as its not tuned to a particular band. Every two way radio and broadcast channel would tick its clock. Needs to discriminate the desired signal from the noise.
Doesn't the high cost of medical coverage already cover this? My employer pays $220 a week for insurance. How many taxes do we need to keep people alive these days?
not a single crash.. not a single os reinstall, downtime caused by moving house and power failures.
Power failures or moving are not an acceptable excuse for downtime. You should have prepared for natural disasters of epic proportions and for the future. Its the life of the computer you are talking about and should not be aborted.
Some engines built for performance do not rely on an electrical "system," but use a magneto for spark. Any high voltage potential induced by a disruptive force may cause the engine to misfire momentarily in the worst case.
And consider if the rating of the speakers are 2500 RMS watts continuous or simply the usual 2500 peak RMS watts with a 0.01 PWM duty cycle marketers love to hawk us with.
2500 watts each? Now consider a three phase 480 volt power for the living room with a 14,400 oil cooled substation transformer feeding the circuit breaker panel and I'll believe these specifications.
They forgot the real training: people need to go outside and visit their neighbors, friends, and family. There's just something that watching the security cartels just won't teach us.
Don't forget about antenna polarization. A receive antenna that matches the direction (polarization) has full strength. Rotate your antenna 90 degrees from your neighbor's vertical polarization into a horizontal orientation and his signal will drop greatly. Kind of like polarized sunglasses blocking out all light of a certain direction.
Something to think about when sniffing or trying to prevent reception of undesired signals.
It gets better. Do you know about those long range antennas you can get for your 2.4GHz wireless? They work with the X10 cameras wonderfully. My brother has a pair of 24dBi antennas and let me tell you about the perfect picture from those cameras from miles away. The compact yagi antennas that I have work great too.
Ever heard of Pringles cans used for X10? That works too!
dattaway@coyote httpd $ ping www.kc.rr.com PING www.kc.rr.com (24.94.173.200): 56 octets data 64 octets from 24.94.173.200: icmp_seq=0 ttl=122 time=10.4 ms 64 octets from 24.94.173.200: icmp_seq=1 ttl=122 time=8.1 ms 64 octets from 24.94.173.200: icmp_seq=2 ttl=122 time=11.7 ms 64 octets from 24.94.173.200: icmp_seq=3 ttl=122 time=8.8 ms
Sometimes I forget Road Runner is cable and think its ethernet.
Slashdot Mirror
A good overkill solution would be a diode and a small UPS/exit sign battery. This would make a simple, yet effective UPS unit for the car. No inversion necessary!
You sound like one of those audiophiles. The ESS has a 16 bit ADC/DAC pair with sampling rates which exceed your hearing range. With this low harmonic distortion, the ESS should meet your bid requirements. Unless your hearing is more exceptional than mine, I don't know what you are complaining about.
like a cool tshirt!
I learned about halon fire systems from the BFOH. He describes their utility to the full potential.
Was this a website the author put his pictures on? Why didn't he control access? Sounds to me like he encouraged fair use.
I couldn't read the pdf, so I didn't read the facts.
Why is this notebook 10lbs, and Apple can design one 3 lbs lighter?
I might be able to tell you why. I have the 15" screen Toshiba Satellite 2805-S603, which is just a few inches smaller. Toshiba builds their laptops like tanks. Mine has done a belly flop onto a hardwood floor more than once from the desk. Without crashing or interrupting my desktop applications.
At my work, Toshiba laptops may be regarded as a little bigger, but they take abuse. I have seen them slide off the vehicles onto the floor and strike fixed objects. They still work. That's important, because no one has got into trouble or lost their job for destroying a laptop. That 3 pounds is mighty nice insurance.
in the spirit of requests:
"me too!"
Mac users are seeing the light.
They usually measure starter horsepower in kilowatts. If I remember right, a starter in my Honda was rated at 2100 watts, or about 3 horsepower (746 watts per horsepower by definition.) You should get several hundred amps from a good charged car battery when shorted. The speed of the chemical reaction is the limiting factor. High amperage batteries tend to have the plates thinner to pack more in the same place for more amperage generating surface area. Duty cycle is limited due to heat that can make the container unstable.
I noticed other people mentioning lead acid batteries do not like less than 50% charge. At work, I deal with several hundred lead acid forklift batteries that are discharged to 20% daily. That 20% is the cuttoff point for the machines if we want our batteries to last several years. Several cycles down to 0% will pretty much render the batteries useless.
And car/marine batteries make wonderful UPS battery replacements in my experience. The only thing to watch out for is series configurations for larger units that need 240volts DC can be a serious fire/explosion hazard if the batteries get dirty/salty/acid on the cases. I have seen lead acid batteries low as 24 volts that haven't been cleaned burn their covers and catch fire many times. The acid salts will conduct across the cells and break the plastic down to carbon and may release chlorine gas from PVC. Be *very* careful as they pack large amounts of energy and can release this in a slowly developing toxic fireball.
When the government makes quarters that *are* pinball machines is the day technology has gone too far.
Not only that, but this counter has a sensitivity down to 700uV in some bands. Radios often have a sensitivity of 1uV.
Not the right tool for the job. If it did have the sensitivity of 1uV, it would pick up the entire noise floor of the radio spectrum as its not tuned to a particular band. Every two way radio and broadcast channel would tick its clock. Needs to discriminate the desired signal from the noise.
Doesn't the high cost of medical coverage already cover this? My employer pays $220 a week for insurance. How many taxes do we need to keep people alive these days?
not a single crash.. not a single os reinstall, downtime caused by moving house and power failures.
Power failures or moving are not an acceptable excuse for downtime. You should have prepared for natural disasters of epic proportions and for the future. Its the life of the computer you are talking about and should not be aborted.
Some engines built for performance do not rely on an electrical "system," but use a magneto for spark. Any high voltage potential induced by a disruptive force may cause the engine to misfire momentarily in the worst case.
And consider if the rating of the speakers are 2500 RMS watts continuous or simply the usual 2500 peak RMS watts with a 0.01 PWM duty cycle marketers love to hawk us with.
2500 watts each? Now consider a three phase 480 volt power for the living room with a 14,400 oil cooled substation transformer feeding the circuit breaker panel and I'll believe these specifications.
They forgot the real training: people need to go outside and visit their neighbors, friends, and family. There's just something that watching the security cartels just won't teach us.
Turn off the television...
Does anyone ever watch the "bonus" disk?
Don't forget about antenna polarization. A receive antenna that matches the direction (polarization) has full strength. Rotate your antenna 90 degrees from your neighbor's vertical polarization into a horizontal orientation and his signal will drop greatly. Kind of like polarized sunglasses blocking out all light of a certain direction.
Something to think about when sniffing or trying to prevent reception of undesired signals.
It gets better. Do you know about those long range antennas you can get for your 2.4GHz wireless? They work with the X10 cameras wonderfully. My brother has a pair of 24dBi antennas and let me tell you about the perfect picture from those cameras from miles away. The compact yagi antennas that I have work great too.
Ever heard of Pringles cans used for X10? That works too!
If not, they should be. Nothing like a hundred people in a pressurized vessel talking to their hand.
Does this work as a ">link?
If it does, I can imagine many people posting malicious links in blogs everywhere by the end of the day.
My taxes paid for part of the paint on the missile that killed Saddam. And that may have been well over $5,000.
I see what you are saying.
dattaway@coyote httpd $ ping www.kc.rr.com
PING www.kc.rr.com (24.94.173.200): 56 octets data
64 octets from 24.94.173.200: icmp_seq=0 ttl=122 time=10.4 ms
64 octets from 24.94.173.200: icmp_seq=1 ttl=122 time=8.1 ms
64 octets from 24.94.173.200: icmp_seq=2 ttl=122 time=11.7 ms
64 octets from 24.94.173.200: icmp_seq=3 ttl=122 time=8.8 ms
Sometimes I forget Road Runner is cable and think its ethernet.
more ram = more room for bloat
Not to mention battery life going from weeks to hours.
I have a HP-28S that will go for a year without a change of batteries. Real shame that handhelds need a power grid nearby these days.