Lafayette Comstat 25A Transceiver
Producent:
Model:
Comstat 25A
Data:
1965
Kategoria:
Grupa:
Opis:
23- Channel CB Transceiver

Informacja

The Lafayette "Comstat 25 A " is a combination Transmitter and Receiver designed tor use in Class "D" operation in the 11 meter citizens radio service. It is designed to meet the Federal Communications Commission requirements applicable to equipment Operating in this service under class "D" emission, and not to be used for any other purpose. Rules Part 95 of the FCC regulations defines operation in this service and the licensee is required to read and understand these regulations prior to operating a CB Transmitter. Copies of Manual VI (covering the FCC regulations for the Citizens Band Radio Service) includes Part 95 and are available for $1.25 from the Superintendent of Docurments, U. S, Government Printing Office, Washington, D. C. A station license may be obtained by submitting a properly completed Station License Application, Form 505 as directed. It is illegal to operate the Transmitter section of this Transceiver prior to receiving a valid station license and call sign. NOTE: It is the Transmitter that is licensed NOT the operator. Anyone may operate a properly licensed CB Transmitter but the licensee will be held responsible for any violations incurred during use. A properly completed Identification Card Form 452-C must be attached to the transmitter. The Transceiver will provide economical and reliable radio communication in its intended application if installed and operated in accordance with instructions contained herein, GENERAL DESCRIPTION Receiver SECTION The Receiver is designed to receive amplitude modulated signals in the 26.965 to 27.255 Me {11-meter) citizens band. The circuit is a highly sensitive and selective dual-conversion superheterodyne type, with one RF and two IF amplifiers. The unit employs a frequency-synthesized circuit in which 13 crystals (all supplied) are used to provide full 23 channel crystal-controlled operation (receive and transmit), switch-selected from the front panel. The unit is equipped with an 11-pin socket at the rear of the chassis which offers direct plug-in facilities for the Lafayette Priva-Com Selective Call unit. Features incorporated into the Receiver section include an S-meter for reading signal strength, a full time automatic noise limiter, and an adjustable squelch control which can be used to "quiet" the Receiver When no signal is being received. As a further aid to better reception, the circuit includes a control that offers "fine tuning" on receive. This control, which has a range of 2.5 Kc, permits optimum reception of stations that are slightly off frequency. Transmitter SECTION The Transmitter is desighed to transmit amplitude modulated signals in the 26.965 to 27.255 Me (11-meter) citizens band. The frequency synthesized circuit used for receive is also common to the Transmitter and used in the transmit mode to provide full 23 channel crystal-controlled operation. A push-to-talk button on the ceramic microphone (supplied) offers reliable relay switching. Plate modulation is employed (100% capability), with up to 5 watts plate power input.to the final RF. Also included is a special "Range-Boost" circuit which, when "on", concentrates more audio power into the sidebands by providing maximum modulation on all syllables. This feature offers maximum communication distance when noisy conditions make reception of your signal difficult, A relative RF power meter (which automatically functions as an S-meter on receive) indicates relative RF power at the Antenna. An added feature is a provision for public address, utilizing the microphone and audio circuits to feed an external speaker connected to the Phones output jack.

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Serwis i User Manual
Typ ręczny:
Serwis i User Manual
Strony:
20
Rozmiar:
1.22 Mbytes (1282303 Bytes)
Język:
english
Rewizja:
Ręczny ID:
99-3130WX
Data:
Jakość:
Skanowany dokument, wszystko czytelne.
Data przesłania:
2015 09 05
MD5:
9fcf5cde00c97f0da84eeaef994b2775
Pobrane:
1103