User manual COBRA 148GTLE

[. . . ] Channel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Channel Frequency in MHz 26. 965 26. 975 26. 985 27. 005 27. 015 27. 025 27. 035 27. 005 27. 065 27. 075 27. 085 27. 105 27. 115 27. 125 27. 135 27. 155 27. 165 27. 175 27. 185 27. 205 Channel 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Channel Frequency in MHz 27. 215 27. 225 27. 255 27. 235 27. 245 27. 265 27. 275 27. 285 27. 295 27. 305 27. 315 27. 325 27. 335 27. 345 27. 355 27. 365 27. 375 27. 385 27. 395 27. 405 NOTICE: Replacement or substitution of transistors, regular diodes or other parts of a unique nature, with parts other than those recommended by Cobra, may cause violation of the technical regulations of Part 95 of the FCC Rules, or violation of Type Acceptance requirements of Part 2 of the Rules. Citizens Band (CB) Radio operators are no longer required to obtain an FCC license to operate their CB equipment or provide station identification. An operator of a CB radio station is required to comply with the communications act and with the rules of CB Radio Operation. Serial No. Date of Purchase Dealer Name Keep this manual for detailed information about your Cobra CB radio. [. . . ] Further clockwise rotation will increase the threshold level which a signal must overcome in order to be heard. Used to reduce the gain of the RF amplifier under strong signal conditions. In the CB position, the PA function is disabled and the unit will transmit and receive on the speaker that is connected. In the PA mode, incoming CB transmission will be heard through the PA speaker. To use the PA feature, a speaker having a voice coil impedance of 8 ohms and a power handling capability of at least three watts should be used. This speaker must be plugged into the PA SPKR jack at the rear of the transceiver. If the public address feature is to be used primarily for outdoor applications, the use of a weatherproof horn type public address speaker is recommended. The durability of this type speaker plus the inherent efficiency of such a speaker will provide more than adequate results when combined with the high audio output level available from the COBRA 148GTLEE. With the PA speaker connected as outlined previously, be sure that there is physical separation between the microphone and the speaker itself. If the speaker is located too close to the microphone, acoustic feedback will result when the public address system is operated at high volume. A directional type outdoor speaker reduces the amount of isolation required. Turn the SQUELCH control slowly clockwise until the noise JUST disappears (no signal should be present). Do not advance the control too far, or some of the weaker signals will not be heard. Adjust the VOICE LOCK control to clarify the SSB signals or to optimize AM signals. 8. 11 Section IV Operation (Continued) OPERATING PROCEDURE TO TRANSMIT 1. If the channel is clear, depress the Push-To-Talk switch on the microphone and speak in a normal voice. Section IV Operation (Continued) Thus when a voice is used in place of a whistle or tone, in the proper listening mode the voice will be received correctly whereas in the incorrect mode, the voice will be translated backwards and cannot be made intelligible by the voice lock control. When listening to an AM transmission, a correct sideband is heard in either mode since both upper and lower sideband are received. Once the desired SSB mode has been selected, frequency adjustment may be necessary in order to make the incoming signal intelligible, the VOICE LOCK control allows the operator to vary frequency above and below the exact-center frequency of the received signal. If the sound of the incoming signal is high or low pitched, adjust the operation of the VOICE LOCK. Consider it as performing the same function as a phonograph speed control. When the speed is set too high, voices will be high-pitched and if set too low, voices will be low-pitched. Also, there is only one correct speed that will make a particular record produce the same sound that was recorded. [. . . ] The Weather Bureau advises that the snow tomorrow will accumulate 4 to 6 inches. " "There is a fire in the building on the corner of 6th and Main Streets. " "This is Halloween patrol unit number 3. Everything is quiet here. " If You Need Service If You Think You Need Service, Call 773-889-3087 You may be asked to send your unit to the Cobra factory. It will be necessary to furnish the following, in order to have the product serviced and returned. For Warranty Repair, include some form of proof-of-purchase, such as a mechanical reproduction or carbon or a sales receipt. [. . . ]