O Oo -52OBAUBZAMY4 NELSON INFORMATION & COMMUNICATION CO. LTD. | TEL : 82-2-851-2780 ~ 5(EXT210) FAX ; 82-2-857-9583 THEORY OF OPERATION I. FREQUENCY GENERATION The frequency generation circuit is composed of the synthesizer IC 401 and the VCO. The block diagram illustrates the interconnect and support circuitry used in the design. Refer to the schematic for reference designation, The supply for the synthesizer is regulated 4.0 volts which also serves the rest of the radio.
© ® 53. OBAUBZAMi4 NELSON INFORMATION & COMMUNICATION CO, LTD. ® TEL : ~ S(EXT210) FAX : §2-2-857-9583 wilts when the PLL is locked on frequency. Int the receive mode, the RF signal through Q407 is the local oscillator RF injection and it is applied to the first mixer at Q203. In the transmit mode, the RF signal at Q402 is run to the input of the per-drive transistor (Q104 base). This RF signal is the Tx RF injection.
OBAUBZAMYM NELSON INFORMATION & COMMUNICATION CO. LTD. TEL : 822-851-2780 ~ S(EXT210) FAX : §2-2-857-9583 bandwidths) for 12.5kHz models, The IF Amplifier, Q301, provides approximately 10dB of gain at 21.7MHz. SECOND MODULATOR IC The Second [Modulator U301) accepts the 21.7MHz IF input and mixes it with a second local oscillator This produces a second IF of 450kHe, which is filtered externally by 2 ceramic filter and passed back into the IC for amplification.
Streetwalker usz.am14 INSTRUCTION MANUAL THANK YOU We are grateful you decided to purchase KEN WOOD product end epitomes You © the Family Radii Saris (FRESH, FRS Js paranormal, short Tangs Weary radio band for scarify & tends lo keep in touch without the need Yor livens, male knowledge, of monthly changes, Your Frontal is calla u transceiver’, meaning Trans miler and "receiver. Your Transceiver provides safely and convenience most anywhere, indoor 4 outside.
VOLUME CONTROL the UP/DOWN key to increment cannonade) the volume kal om 1 fo framer Press the UPTOWN kay to return to Repeat Mads for mots than {0.2} seconds, # When power On/OH, the volume level will ba not changed, ® The volume vel will be changed fo original level during replacing & battery. MONITOR KEY 1. Mormon Oni 2. Continuous Monitor Made ric ® Normal Monkish Mode During pressing the Monitor Key, Angie 1s On and RX fon Appraisers on the LOD.
KEN WOOD LIMITED WARRANTY STATEMENT Ken wood Communications Corporation {REDWOOD' premarital this product for ninety {9D} days on parts and labor, assure fom the dale of perchance by the fest and user This Warranty is enforceable only by the first snd user, Extant as specified below, this warranty covers all defects in male and workmanship in this product. The following are not covered by tha Warranty, 1. Damage, deterioration or failure resulting from, A.