| ==Phrack Inc.== | |
| Volume One, Issue Five, Phile #8 of 12 | |
| ---------------------------- | |
| - Short-Wave Radio Hacking - | |
| ---------------------------- | |
| by | |
| The Seker | |
| 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. | |
| There are many other types of transmission standards besides RTTY that are | |
| commonly used. A few of the known: | |
| FAX (Facsimile) | |
| Helshcrieber- it's used to transmit pictogram-type alphabets (i.e. | |
| Chinese, Jap, etc.) instead of the American letters. | |
| SSTV- is similiar to Viewdata. Used for transmitting high-resolution | |
| pictures mixed with text. | |
| 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. | |
| NEWS AGENCIES- | |
| 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: | |
| at kHz: | |
| 3155-3400 3950-4063 | |
| 9040-9500 12050-12330 | |
| 13800-14000 15600-16360 | |
| 19800-19990 25210-25550 | |
| An easy way to tell if you have located a news agency is by some lame | |
| transmission being continuosly repeated. | |
| i.e. 'RYRYRYRYRYRYRYRYRYRYRY' etc. | |
| This is done so they can keep their channels opened for reception. | |
| CONFERENCES- | |
| 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: | |
| at kHz: | |
| 3590 14090 21090 28090 | |
| at MHz: | |
| 432.600 433.300 | |
| at VHF/UHF: | |
| 144.600 145.300 | |
| PACKET RADIO- | |
| 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. | |
| --tS | |
| This has been written exclusively for | |
| ---Metal Shop Private--- | |