| ==Phrack Inc.== |
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| Volume One, Issue Five, Phile #8 of 12 |
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| ---------------------------- |
| - Short-Wave Radio Hacking - |
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| by |
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| The Seker |
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| Every day, tons of information is exchanged over the air waves. I have |
| found news agencies, military computers, businesses, and even hacks. |
| The standard method of exchange is called RTTY (Radio Teletype). It |
| usually is used at 66/7 words per min. Instead of using ASCII, Baudot, a 5 bit |
| character set is more widely used. There are many variations of it in use also. |
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| There are many other types of transmission standards besides RTTY that are |
| commonly used. A few of the known: |
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| FAX (Facsimile) |
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| Helshcrieber- it's used to transmit pictogram-type alphabets (i.e. |
| Chinese, Jap, etc.) instead of the American letters. |
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| SSTV- is similiar to Viewdata. Used for transmitting high-resolution |
| pictures mixed with text. |
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| To start, you'll need to buy (card) a receiver (with a coverage of no less |
| than 500 kHz-30 MHz and a resolution greater than 100 Hz) and a high quality |
| antenna. These can usually be found at electronics stores. You will also need |
| to get an interface and some RTTY software for your particuliar computer. Look |
| in magazines like 'Amatuer Radio' or 'Ham Radio Today' for more information on |
| that shit. Another good place to check is a CB store. |
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| NEWS AGENCIES- |
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| From these you can find all sorts of crap. You may even intercept a story |
| being sent to the presses. They tend to operate at 66/7 words a minute (50 |
| baud). A few of the more common 'fixed' bands they transmit over are: |
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| at kHz: |
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| 3155-3400 3950-4063 |
| 9040-9500 12050-12330 |
| 13800-14000 15600-16360 |
| 19800-19990 25210-25550 |
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| An easy way to tell if you have located a news agency is by some lame |
| transmission being continuosly repeated. |
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| i.e. 'RYRYRYRYRYRYRYRYRYRYRY' etc. |
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| This is done so they can keep their channels opened for reception. |
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| CONFERENCES- |
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| Another thing I found interesting was the channels that the amatuers |
| congregated around. I frequently ran into people from foreign countries that |
| couldn't even speak English. I even ran into other hackers from all over! |
| A few of the more popular spots that amatuers hang out are: |
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| at kHz: |
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| 3590 14090 21090 28090 |
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| at MHz: |
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| 432.600 433.300 |
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| at VHF/UHF: |
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| 144.600 145.300 |
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| PACKET RADIO- |
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| A new development in radio transmission is the packet radio. From what |
| I've seen, it's just like digital packet switching networks, i.e. Compuserve, |
| Telenet, Tymnet, etc.; except slower. |
| In fact, Compuserve has been researching a way to transmit its services |
| cheaply. |
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| --tS |
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| This has been written exclusively for |
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| ---Metal Shop Private--- |
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