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When you listen to encrypted signals, it sounds just like "hash" of an open squelch. The way it's used, even having the key correct except for 1 digit makes the key totally unusable (ie you won't get fragments of a signal with partial key. even with the right stuff, the combination of keys that can be generated is astronomical, and trying to guess one set of literally millions is futile.
ASTRO SABER CODE PLUG INSTALL
Is it possible to get a radio, install the appropriate decryption module, and listen to encrypted signals? Not likely. If the radio is off and you disconnect the battery for more than about 30 seconds, the key will be lost.Īmateur radio prohibits the encryption of transmitted signals. The key inside the radio is volatile, meaning that if you disconnect the battery while the radio is on, the key is lost. Other's will display "BEEP" only as a reminder to make sure the decrypted tone was present in the radio. On some of the KVL's, there is a signal sent back from radio to KVL and it will display "PASS" for "FAIL" on the display. The KVL will now send a 1000hz encrypted tone to the radio, and if all is successful, you'll hear the tone from the speaker. Press the PTT (push-to-transfer) on KVLĪt this point, the KVL will send the encryption key to the radio. Connect radio to KVL with appropriate cableĤ. NOTE The KEY # is NOT retrievable from the loaderġ. Press ENTER button to save the key into loaderĩ. (sometimes the last digit will not take, try another if "E" shows)Ĩ. After 16 to 24 digits it won't take anymore digits Press random values for the key, noting them on paper as you goħ. Prompt is 0.1 for the first set of octal or hex valuesĦ. It will prompt for the sequence number (0 to 7)ĥ. This provided range equivelent to clear transmissions.ģ. Motorola redesigned the algorithm modes, and produced the XL security format. When the systems first came, there was some serious limitation to the distance coded transmissions would travel.
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KVL's can hold up to 8 different keys (for different zones). The KVL-3K uses the same keyloading cables as the old KVLs. The KVL-3K uses Visar batteries and chargers. The T30XX models are no longer sold by Motorola. KVL-3000 (T5795A) models replace all the above T30XX models. The keyloading cables were options to all models. You will need a D version to program some of The higher the letter, the newer and fancier. The version letter (A, B, C, D) refers to when the unit was produced and what features/algorithm's it They use the same batteries/chargers as the MX style radios.ĭVP CODE INSERTER T3010AX, T3010BX, T3010CX, T3010DXĭES/DES-XL SECURENET T3011AX, T3011BX, T3011CX, T3011DX KVL's look like a big calculator, with red readout and numeric membrane keypad. Then, using the appropriate Key Variable Loader (KVL), load the encryption key into the radios. To make encryption work in your radios, you'll need a pair of radios with the same type of encryption capability (for example, DVP "Digital Voice Encryption" will not communicate with DES "Data Encryption Standard"). These designate Clear, "O", or unencrypted, or Coded, /, or encrypted signal. Many times the radio will have a switch that shows an "O", and an "O" with a slash (/) though it. Most of the time (but not always) the models that are encryption capable have an "X" designation in the model number.For example, for some popular models the designation is such that: To determining if it's capable or not can be determined by model number. Some radios (Spectra, Saber) may be capable of secure, but are lacking the necessary hardware to achieve encryption. The only "surefire" way to know if your radio is already capable of encrypted transmission is to open it up and see if has the encryption modules. MX300 - Saber - System Saber - Astro Spectra Spectra(tm) - Syntor - Expo - Micor - MT2000 Some of the more popular radios that are capable of encryption in selected models: Some non-secure model can be made to work secure with an outboard "Secure Box". Not all radios are capable of secure communications right out of the box.
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Motorola offers it's customers radios that are capable of using digital encrytion (called Securenet(tm)) to prohibit unauthorized reception of the transmitted information. 2-Way Encryption Primer 2-Way Encryption Primer