Coaxial cable has a standard impedence, it should match the output of the transmitter unless it is rather odd. Coax does have resistive losses at high frequencies, but over a few feet it should not be much.
It looks like they are using 2.4 GHz band antennas (probably intended for WiFi use), evidently Bluetooth is in the same band.
Do they still teach assembly language to CS majors?
I was doing some PIC microcontoller programming recently and was remembering indirect addressing and thinking "jeeze, I haven't thought about that since college, where they were teaching us the assembly language of the PDP/11."
In college, I was able to talk with Cosmonauts on space station MIR on the 144 MHz amateur radio band with a 1-watt hand-held radio, and that was using FM.
300 bps modems (Bell 103 standard) did operate at 300 baud. Baud is an old school way of saying "symbols per second". 300 bps modems used one-bit frequency shift keying per symbol.
1200 bps modems (Bell 212A) operated at 600 baud but sent two bits per symbol using differential phase shift keying (DPSK).
2400 bps was 600 baud quadrature-amplitude modulation (QAM, in this case 4 bits per symbol), 9600 was 2400 baud QAM.
Yes, they use different modulation techniques. DVB-T uses COFDM modulation, ASTC uses 8 VSB modulation. DVB-S (satellite) uses QPSK modulation (generally).
My impression, though, is that these formats all use MPEG-2 transport streams. So if you can demodulate them, and deliver them over coax using ASI (asynchronous interface), they would all mostly work with an MPEG-2 TS demux/decoder.
Computational Linguist, in Annapolis Junction, Maryland. [probably NSA] FT. Salary: $100K-$130K
Ability to take polygraph examination and maintain a Top Secret/SCI with Lifestyle Polygraph Clearance (U.S. Citizen and Immediate Family (brothers, sisters, wife, children)
Job Description: A senior computational linguist to work on intelligent document management products. Experience in programming statistical text processing or text parsing using C or C++ programming skills are required. Candidates with a Masters Ph.D. (preferred) in Computer Science or linguistics and 3+ years work experience are preferred.
Job Qualifications: Degree in computational linguistics with emphasis on lexicography. Knowledge extraction and morphological analysis. Experience with development of commercial software products. Experience with research in computational linguistics. Strong programming skills five years required. Familiarity with a large number of languages (preferably Middle Eastern/Asian) Familiarity with the analysis of large corporations. 5+ years of experience in the field of computational linguistics. Active participation in the community of computational linguistics. Familiarity with C/C++, Perl, Windows NT operating system, compression algorithm helpful. Send Resumes to resumes@unitedplacements.com
There is a real lack of people with serious RF experience (over the few mW of WiFi/Bluetooth), and this is a major problem for TV and Radio broadcasters trying to hire people who can understand that high SWR on an antenna fed with a megawatt of power can make things explode. Hams who got RF burns with their kilowatt amplifiers have the experience:) They've also built real feedlines, phased antennas, etc.
Of course, hardly anyone watches over-the-air any more with cable and DBS, so maybe it doesn't matter much...
I just pulled a piece of skin off of my finger and put it on the ground. The piece of skin has human DNA. Parts of it may even live for a few minutes. Yet, it is not a human. I, writing this, am.
I'd say that you could also find 300 qualified economists who are against both Bush's and Kerry's policies.
For example, Bush has torpedoed his own free trade plans with hikes on imported steel, shrimp, and bras.
Plus economists know that Bush did not do a tax cut. By raising the deficit through higher spending, he actually raised taxes, but just not in this year.
Yes, it is different from killing prisoners to extract their organs. Blastocysts have no central nervous system, thus no concept of pain or existence. To be a human being, you need a central nervous system.
Others suggest that to be human, you need higher-order consciousness. That is why it is acceptable to "pull the plug" on hopelessly brain-damaged patients that have no hope of recovering consciousness, even if the brain stem survives and there is some level of autonomic respiration.
On the other hand, allowing REAL human beings to die by our inaction on studying blastocyst stem cells, I consider that unethical.
Atomic energy is so highly concentrated (many orders of magnitude larger than any chemical energy), that running out of space for nuclear waste storage is not a problem.
People are just phobic of it, despite the fact that natural nuclear reactors that have resided in the ground for millions of years.
He's saying the solution to the problem is to spend Social Security money on Social Security, and not other government projects.
That won't solve the problem either for the long term. Social Security surplus ends in 2018, and even if all of the money from the "Trust Fund" were recovered, Social Security runs out of money in 2042.
There is at least $1 trillion already in the "Trust Fund," which means in the 2030's even if no more Social Security surplus is spent, the Federal Government will have to start moving money from the general fund to Social Security to pay off bonds. Which is basically the same as saying Social Security runs out of money.
Here is an alternative that moves to a half-private solution.
Invested in less regulated economies? Besides, it remains to be seen what kind of return you will get from the Japanese national pension program anyway...you might be better with money in the Nikkei index...
Since Japan's Social Insurance Agency took over the task of collecting national pension insurance premiums in April of last year, its account receivable has increased by 200 billion yen.
The national pension insurance fund is now facing a dangerous financial crisis...Currently, workers have to pay 13.58% of their annual income. During the review done in 2000, the MHWL announced that premium payments would have to be increased to 19.8% in 2025 in order to keep the system healthy. However, the ministry has found that this was too optimistic. Based on the latest population data, the ministry estimates that it should be raised to 22.4% in 2025, and if Japanese families continue to have fewer children, it will have to be raised to 24.8%.
Please show me your evidence that campaign finance reform has accomplished "protecting our democracy from people yielding undue influence based on the size of thier pockets." I see lots of regulations of speech, and no results.
I hope this will teach all of you that campaign finance reform is a joke. Everything that has been tried since the Nixon administration has only made it harder for non-incumbents to run for office. You now have to have a lawyer and an accountant on staff to run for any kind of office to avoid getting in trouble with all the laws.
Now they are going to regulate the Internet. Thanks guys!
I think Kerry really ducked the Social Security question. You can go from 16 workers per retiree to 3 and think the system is going to keep going. Unless you are ready to make the payroll taxes even higher (which hurts the economy) or reducing benefits (which hurts the retirees).
Just glad you weren't retiring in a period that saw persistent declines in stock values, let alone right after a massive drop like '87 or the tech bubble blowout.
That's stupid. You make a switch out of equities and into bonds during a good period 5-10 years before retirement.
No serious student of current events can escape the reality that political freedom and economic prosperity are linked.
Actually there is a lot of evidence that democracy can reduce economic growth in developing countries. You can look at India, which was mired in democratic socialism for years until they decided to end the "permit Raj", economically reform, and start significant economic growth.
China is growing very quickly, because the dictatorship demands that institutions (courts and such) have pro-growth policies. Private property is better protected in "communist" China today that in democratic Russia.
We can look at countries such as South Korea that developed well under dictatorships.
Even Iraq did pretty well, until Saddam got into war with Iran. Which shows that dictators can help development, as long as they don't turn on it.
On the other hand, developing nations do seem to reach an economic level where dictatorship is incompatible with further growth. South Korea hit that point and democratized, and China will reach that point soon as well.
Slashdot Mirror
What is stopping you from buying a personal autogyro? You can easilly pick one up for less than the price of an average car.
The comments on Amazon about the RoboMower have been generally pretty positive! I plan to get one once my house is built.
Coaxial cable has a standard impedence, it should match the output of the transmitter unless it is rather odd. Coax does have resistive losses at high frequencies, but over a few feet it should not be much.
It looks like they are using 2.4 GHz band antennas (probably intended for WiFi use), evidently Bluetooth is in the same band.
Probably not much of an SWR problem.
Do they still teach assembly language to CS majors?
I was doing some PIC microcontoller programming recently and was remembering indirect addressing and thinking "jeeze, I haven't thought about that since college, where they were teaching us the assembly language of the PDP/11."
In college, I was able to talk with Cosmonauts on space station MIR on the 144 MHz amateur radio band with a 1-watt hand-held radio, and that was using FM.
300 bps modems (Bell 103 standard) did operate at 300 baud. Baud is an old school way of saying "symbols per second". 300 bps modems used one-bit frequency shift keying per symbol.
1200 bps modems (Bell 212A) operated at 600 baud but sent two bits per symbol using differential phase shift keying (DPSK).
2400 bps was 600 baud quadrature-amplitude modulation (QAM, in this case 4 bits per symbol), 9600 was 2400 baud QAM.
Yes, they use different modulation techniques. DVB-T uses COFDM modulation, ASTC uses 8 VSB modulation. DVB-S (satellite) uses QPSK modulation (generally).
My impression, though, is that these formats all use MPEG-2 transport streams. So if you can demodulate them, and deliver them over coax using ASI (asynchronous interface), they would all mostly work with an MPEG-2 TS demux/decoder.
BTW, check this out:
Computational Linguist, in Annapolis Junction, Maryland. [probably NSA] FT. Salary: $100K-$130K
Ability to take polygraph examination and maintain a Top Secret/SCI with Lifestyle Polygraph Clearance (U.S. Citizen and Immediate Family (brothers, sisters, wife, children)
Job Description: A senior computational linguist to work on intelligent document management products. Experience in programming statistical text processing or text parsing using C or C++ programming skills are required. Candidates with a Masters Ph.D. (preferred) in Computer Science or linguistics and 3+ years work experience are preferred.
Job Qualifications: Degree in computational linguistics with emphasis on lexicography. Knowledge extraction and morphological analysis. Experience with development of commercial software products. Experience with research in computational linguistics. Strong programming skills five years required. Familiarity with a large number of languages (preferably Middle Eastern/Asian) Familiarity with the analysis of large corporations. 5+ years of experience in the field of computational linguistics. Active participation in the community of computational linguistics. Familiarity with C/C++, Perl, Windows NT operating system, compression algorithm helpful. Send Resumes to resumes@unitedplacements.com
Has there ever been a real (non-government) business in computational linguistics?
BTW, I suggest she find a job at CIA/NSA/FBI with a security clearance - they need people to build systems analyze lots of Arabic these days.
I suggest molecular biology/industrial biology and bioinformatics
I've seen the disabled woman who rides the DC Metrorail who used a Segway until it was banned, which I think is sad.
There is a real lack of people with serious RF experience (over the few mW of WiFi/Bluetooth), and this is a major problem for TV and Radio broadcasters trying to hire people who can understand that high SWR on an antenna fed with a megawatt of power can make things explode. Hams who got RF burns with their kilowatt amplifiers have the experience :) They've also built real feedlines, phased antennas, etc.
Of course, hardly anyone watches over-the-air any more with cable and DBS, so maybe it doesn't matter much...
http://www.ess.washington.edu/Space/magbeam/
Oh I get it - are identical twins unique human beings?
I just pulled a piece of skin off of my finger and put it on the ground. The piece of skin has human DNA. Parts of it may even live for a few minutes. Yet, it is not a human. I, writing this, am.
I wouldn't say that...
I'd say that you could also find 300 qualified economists who are against both Bush's and Kerry's policies.
For example, Bush has torpedoed his own free trade plans with hikes on imported steel, shrimp, and bras.
Plus economists know that Bush did not do a tax cut. By raising the deficit through higher spending, he actually raised taxes, but just not in this year.
Yes, it is different from killing prisoners to extract their organs. Blastocysts have no central nervous system, thus no concept of pain or existence. To be a human being, you need a central nervous system.
Others suggest that to be human, you need higher-order consciousness. That is why it is acceptable to "pull the plug" on hopelessly brain-damaged patients that have no hope of recovering consciousness, even if the brain stem survives and there is some level of autonomic respiration.
On the other hand, allowing REAL human beings to die by our inaction on studying blastocyst stem cells, I consider that unethical.
Atomic energy is so highly concentrated (many orders of magnitude larger than any chemical energy), that running out of space for nuclear waste storage is not a problem.
People are just phobic of it, despite the fact that natural nuclear reactors that have resided in the ground for millions of years.
He's saying the solution to the problem is to spend Social Security money on Social Security, and not other government projects.
That won't solve the problem either for the long term. Social Security surplus ends in 2018, and even if all of the money from the "Trust Fund" were recovered, Social Security runs out of money in 2042.
There is at least $1 trillion already in the "Trust Fund," which means in the 2030's even if no more Social Security surplus is spent, the Federal Government will have to start moving money from the general fund to Social Security to pay off bonds. Which is basically the same as saying Social Security runs out of money.
Here is an alternative that moves to a half-private solution.
Invested in less regulated economies? Besides, it remains to be seen what kind of return you will get from the Japanese national pension program anyway...you might be better with money in the Nikkei index...
t io n.htm
http://www.globalaging.org/pension/world/corrup
Japan Today, August 11, 2003
Since Japan's Social Insurance Agency took over the task of collecting national pension insurance premiums in April of last year, its account receivable has increased by 200 billion yen.
The national pension insurance fund is now facing a dangerous financial crisis...Currently, workers have to pay 13.58% of their annual income. During the review done in 2000, the MHWL announced that premium payments would have to be increased to 19.8% in 2025 in order to keep the system healthy. However, the ministry has found that this was too optimistic. Based on the latest population data, the ministry estimates that it should be raised to 22.4% in 2025, and if Japanese families continue to have fewer children, it will have to be raised to 24.8%.
Please show me your evidence that campaign finance reform has accomplished "protecting our democracy from people yielding undue influence based on the size of thier pockets." I see lots of regulations of speech, and no results.
I hope this will teach all of you that campaign finance reform is a joke. Everything that has been tried since the Nixon administration has only made it harder for non-incumbents to run for office. You now have to have a lawyer and an accountant on staff to run for any kind of office to avoid getting in trouble with all the laws.
Now they are going to regulate the Internet. Thanks guys!
I think Kerry really ducked the Social Security question. You can go from 16 workers per retiree to 3 and think the system is going to keep going. Unless you are ready to make the payroll taxes even higher (which hurts the economy) or reducing benefits (which hurts the retirees).
Just glad you weren't retiring in a period that saw persistent declines in stock values, let alone right after a massive drop like '87 or the tech bubble blowout.
That's stupid. You make a switch out of equities and into bonds during a good period 5-10 years before retirement.
No serious student of current events can escape the reality that political freedom and economic prosperity are linked.
Actually there is a lot of evidence that democracy can reduce economic growth in developing countries. You can look at India, which was mired in democratic socialism for years until they decided to end the "permit Raj", economically reform, and start significant economic growth.
China is growing very quickly, because the dictatorship demands that institutions (courts and such) have pro-growth policies. Private property is better protected in "communist" China today that in democratic Russia.
We can look at countries such as South Korea that developed well under dictatorships.
Even Iraq did pretty well, until Saddam got into war with Iran. Which shows that dictators can help development, as long as they don't turn on it.
On the other hand, developing nations do seem to reach an economic level where dictatorship is incompatible with further growth. South Korea hit that point and democratized, and China will reach that point soon as well.