SONY ICF-SW77 DIGITAL RADIO IN RAWALPINDI

The Sony ICF-SW77 radio have number of different features and functions is too complex to be completely dealt. At the right, You find two large liquid crystal displays, the upper one is used for the clock functions, the one below for status of radio functions, frequencies and memories. The keys S1 - S5 give access to memories. The round keys under the lid at the top face of the receiver are used to control the different possibilities of the world time clock, to set the local time and the difference to a second time zone and select, which of the times will be displayed. A mechanical sliding table will give You an idea about time in different timezones and where You can expect daylight and night, so you can get an idea about the propagation conditions. The switch in the right upper corner of the receiver is used to switch on the radio, it can be set to a mechanical lock position to prevent the radio being switched on inadvertedly during transport in Your suitcase.The buttons next to it activate thee sleep timer, lock the keypad and set the radio to timed operation. The black rectangular keys just below the frequency display are used to organize the memory contents: the total of 162 memories can be accessed from 20 pages, each with 5 station memories accessed by the S1 - S5 keys, each of which can be filled with uptotenfrequencies. A alphanumeric label can be attached to each frequency memory, quite a large number is preprogrammed from factory but can be altered. Use the PAGE +/- keys to navigate through the memory pages.Two "memory pages" act as QUICK PAGES 1 and 2 to store Your favourite frequencies, another one as TIMER PAGE TP to store the frequencies and times for automated timer controlled reception. You can store the operation time of a station individually on it's parallel frequencies and later, You can recall that station name from memory and the receiver tries to locate the best frequency active in the moment automatically. The right lower corner, You find the thumbwheel tuning knob, a small sliding switch is used to lock the tuning mechanism and a pushbutton to switch between the tuning steps 50 Hz and 1 kHz. The numbered keys next to the AM and FM keys are used for direct frequency entry, use the main tuning knob to tune the radio a little bit up or down. Use the leftmost round keys below the frequency display to select the wide or narrow bandwidth, the SSB button toggles between AM / USB / LSB/CW and the SYNC button between SYNC-U, SYNC-L and standard AM mode without SYNC. At the receiver's right small face, You find the sliding volume control and two separate small rotary controls for bass and treble. All connectors for earphones, a cassette recorder or an external center positive power supply are located at the left small face of the radio. Like in most Sony shortwave radios, You won't find much technical information in the user's guide.The ICF-SW77 is a double conversion receiver with a high first intermediate frequency of 55,845 MHz. With four UM-2 batteries, the SW77 has an audio output of 400 mW, the batteries should last twelve hours for AM reception and 20 hours for FM reception for four hours a day at normal volume. The Great ICF-SW77 was the last "Big" portable shortwave radio made by Sony Japan, in early 1990's. Views: 6