140 lines
8.1 KiB
Plaintext
140 lines
8.1 KiB
Plaintext
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)( How To Listen In On Cordless Telephone Conversations )(
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)( )(
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)( An Original 'Phile' By: Beowulf )(
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)( )(
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)( Call The Outhouse BBS 201-756-9575 )(
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)( )(
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)()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(
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Have you ever wanted to know what your brother/sister/parents/
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friends/enemies were saying as they hid somewhere, cordless phone in hand?
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With this phile, now you can! Just follow the simple instructions outlined
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inside.
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First some information about cordless telephones:
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The original cordless telephones (1978-about late 1983) were made
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to be used on the 1.6 to 1.8 MHz band. If you will notice, 1.6 MHz is also
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the top end of the AM broadcast band. These phones operate on AM (just like
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the radio stations) and use the wiring in your house for an antenna. The
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power of these phones is 1/10 of a watt in most cases, or about 1/50th of the
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power that your average CB radio will put out. So, not having a lot of power,
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it is tough to hear these phones. You know how they say '500 foot range'?
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Sure, that's the range of the handset to the base, but not of the signals
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emitted by the base! Which means that on good nights you can hear them for
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many miles (I live in NJ an have heard telephones VERY loudly from NY City,
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35 MILES away!).
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The newer phones, however, are not as easy to hear. They operate
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on FM on the 49 MHz band, which is the same frequency which your little
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walkie-talkies that you loved as a ten year old operate on. These phones
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require a little bit more effort to be heard than do the old ones (and a
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little $$$). Never fear, however, because about 1 out of 10 phones is the
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old style, and they are still being made and sold today.
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How To Do It:
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For the old style phones, you will need to get a pocket size AM
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transistor radio. The one I used was an AM/FM Realistic (bought for $9 at
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Radio Shack). There should be a small plastic box inside the radio. This
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little 'box' is the VFO (Variable Frequency Oscillator) which controlls the
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frequency of the radio. Now of course, you aren't going to have a digital
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frequency counter (they only cost $400, so everyone should have at least
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two of them) so before you do anything, turn on the radio and tune to the
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top of the band and find the station which is closest to the top of the
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broadcast band. Write down the frequency so you have something to compare
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to later.
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Now, turn off the radio, get a small size screwdriver, and
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adjust the small screw(s) on the back of the little plastic box. Don't turn
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them more than a quarter turn at a time. Now, when you have done your first
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'tweak' of the screws, turn on the radio and see where that station at the
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top of the band is now on the frequency dial. When you have gotten the
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station 150-200 kHz down from where it was, (like if the frequency was 1600,
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get it down between 1400 and 1450), you are all set to recieve cordless
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telephones at the top end of the radio! Note: this little 'trick' may not
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work as well on all radios, but it is worth a try. If worse comes to worse,
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you can turn them back.
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The ideal distance is a close to the base as you can get, but this
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sucker should pull in signals from up to 500 feet away with no problem.
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Simply go near someones house with this, and then have fun!
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Another way: Another way to do this, if the VFO adjustment trick
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does'nt work, is to adjust the small metal boxes that have little colored
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screws in them. These are the tuning coils for the reciever circuit, and they
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affect the frequency also. Another possibility is a combination of turning
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the VFO screws and the coils to try to get the desired effect. Good Luck!
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Now for the tough ones, the new phones. The new phones work on the
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49 MHz band. You are going to need one of the 'new' walkie talkies that
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operate on 49 MHz ===- FM -=== (the cheap shit ones are AM). If you
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decide to invest in one at Radio Shack or similar store, make damn sure you
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get FM walkie talkies. If you get AM, you're screwed, unless you have a
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friend who is killer into electronics or ham radio who has the knowledge to
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convert AM to FM. (Yes, it can be done. I have done it with CB's, and it is
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great for CB because no one can understand what you are saying unless they
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have a FM-converted CB.....Hmm.....that may be my next text phile...look for
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it!!) Anyway.....when you get your FM walkie talkie, you can do one of two
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things:
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A) You can play the adjust the coils trick as mentioned in the last
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article (there is no VFO because walkie talkies are crystal
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controlled).
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B) You can change the crystal. Popular frequencies for cordless
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phones are 49.830, 49.860 and 49.890 MHz. These crystals can
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be obtained from electronic supply houses (like ones that sell
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chips for your Apple) for about $2 or less each.
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And that just about concludes this phile. There are two other
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shortcut methods that can be used to bypass this mess and get you listening
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in right away.
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1) Get a general coverage receiver. They cover all frequencies
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from 100 kHz to 30 MHz, and will provide you with 'armchair'
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reception because you can hook up a monster antenna. (I have
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a 1964 vintage model that I got for $10 sitting on my desk
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with a 600 foot long piece of wire for an antenna....boy,
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I know everything in my neighborhood before the ladies start
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gossiping!)
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2) If you play guitar or bass, and have a 'wireless' system for
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your guitar like the Nagy 49R, you can hook up a 12 volt
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lantern battery and go prowling around listening for the
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phones. (Bass rules!)
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Method 1 only works on the old phones because of the frequency
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limitations of the reciever, and method 2 is for new phones only because
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the 'wireless' systems only work on 49 MHz FM.
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Have phun with your new knowledge, and look for more philes
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from me in the future (that CB FM is a good idea.....hmmmm...)
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)()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(
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)( This has been on original phile by: Beowulf )(
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)( Copyright June 1985 )(
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)( Call The Outhouse BBS 201-756-9575 24 hours a day! )(
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)()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(
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X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X
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Another file downloaded from: NIRVANAnet(tm)
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& the Temple of the Screaming Electron Jeff Hunter 510-935-5845
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Salted Slug Systems Strange 408-454-9368
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Burn This Flag Zardoz 408-363-9766
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realitycheck Poindexter Fortran 415-567-7043
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Lies Unlimited Mick Freen 415-583-4102
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Tomorrow's 0rder of Magnitude Finger_Man 408-961-9315
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My Dog Bit Jesus Suzanne D'Fault 510-658-8078
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Specializing in conversations, obscure information, high explosives,
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arcane knowledge, political extremism, diversive sexuality,
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insane speculation, and wild rumours. ALL-TEXT BBS SYSTEMS.
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Full access for first-time callers. We don't want to know who you are,
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where you live, or what your phone number is. We are not Big Brother.
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"Raw Data for Raw Nerves"
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X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X
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