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- ==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---
- ==============================================================================
-