Kenwood TS-780 manual Features

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SECTION 1. FEATURES

SECTION 1. FEATURES

1.144/430 MHz, all mode (FM, SSB (USB, LSB), CW) transceiver.

0 8 bit microprocessor controlled VFO and full variety of auxiliary functions.

0 FM circuitry based on KENWOOD’s advanced technology and outstanding SSB quality.

0 Buit-in VOX.

0 Buit-in side tone and CW circuitry capable of semi- break-in Operation.

0 Adoption of power module in the transmitter final Stage for dependable Operation on both bands.

2.Built-in digital display that indicates operating frequency in all modes.

0Digital display equipped with easy - to - read green Phosphor tubes.

07 - digit digital display that directly reads down to 100 Hz.

0 Frequency indicator that reads out carrier positions when mode of Operation is changed.

0 Two VFO’s (A and BI are built into the transmitter for more enjoyable Operation such as “Cross-frequency” Operation.

0Buit-in 1 0-channel memory circuit stores operating fre- quencies and bands. Two channels (CH9 and CH10) can be called out by using CALL channel switch.

0Easy-to-read display indicated 2 VFO’s ( R, b ), memory channels ( 1 -~8 ) and priority channels ( c and c )

0 Display function that clears frequency below 1 kHz in FM-CH.

3. Dependable electrical and mechanical functions

0 VFO frequencies are switchable in 2 Speeds, SLOW (in 12.5 kHz, FM-CH) and FAST (in 5 kHz, FM-CH).

0 VFO knob equipped with variable torque mechanism.

0 Pushbutton band select switched (UP and DOWN) that shift up and shift down frequency between 144 MHz and 440 MHz in 12 bands at 1 MHz intervals.

0 Wide band design for both transmitter and receiver that eliminates the need for tuning the RF circuits.

0 Panel layout based on human engineering.

0 Full variety of indicating functions to check operating conditions (OFFSET, ON AIR, BUSY, F.LOCK, RIT, F.STEP).

0 Amplified type AGC and ALC circuits that maintain receive and transmit Outputs at constant level without distortion.

4. A multitude of auxiliary functions for more enjoyable Operation.

0The use of RAM memory System enables any given fre- quencies to be stored in or cleared. (IO memory chan- nels).

0Built-in back-up battery holder to keep data stored at all times.

0 Built-in memory scan for selection between 144 MHz and 430 MHz.

0 RIT circuit function on VFO, memory channels and priority channels.

0 Adoption of frequency lock circuit.

0 A repeater shift circuit is provided, and the shift width on the 144 MHz band is - 600 kHz or + 600 kHz, and that on the 430 MHz band is - 7.6 MHz or - 1.6 MHz, which may be selected as required. The tone frequency is 1,750 kHz. In the event of off band, the digital display goes out and transmission is halted.

0 KENWOOD’s unique noise blanker (NB) circuit to eliminate pulse type noise.

0 Four-function meter serves as S meter, RF meter, ALC meter and Center meter.

0 RF power HIGH/LOW selecting function provides conve- nience in transmission with local stations in FM.

0 Auxiliary (AUX) socket.

5. Designed for fixed and mobile Station Services.

0 ACIDC 2-way power Operation.

0 Equipped with a grip for carrying convenience.

0 Sufficient AF output power (2.5 W/4 9).

0Built-in large sized speaker (7.5 cm). External speaker connecting jack.

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Contents Page CONTENTS SPECIFICATIONS TS-780GENERAL TRANSMITTERSECTION 1. FEATURES 2-3.CABLING FOR ANTENNA, POWER SUPPLY AND OTHERS 2-l.ACCESSORIES2-2.OPERATING LOCATION 3-l.FRONT PANEL 7 REV Reverse Switch 3-2.REAR PANEL 3-3.INTERNAL VIEW 3-4MICROPHONE4- 1. ANTENNA TS-7804-2.COAXIAL CABLE Fig. 7 Adjustment of Antenna System5-2.FM MODE 5-l.OPERATING MODES&ZA \ 5-3. SSB Mode 5-4IF SHIFT Control “n ;,+;;,v5-5CW Mode Use of RIT SwitchUse of NB Switch Reception5-8BAND SWITCH UP-DOWN 5-6VOX OPERATION5-7READING THE FREQUENCIES 5-9DIGITAL VFO5-12USE OF F. STEP SWITCH 5-10OPERATION OF 2 VFOs5-11USE OF FM-CH 5-13USE OF MEMORY5-14USE OF SCAN SWITCH 5-15USE OF MS MEMORY SCAN SWITCH 5-17BACKUP OF MEMORY CHANNEL FRE- QUENCY5-l6 USE OF PRIO. M CHANNEL j--------------15- 19 REPEATER OPERATION 5-20OSCAR OPERATION 5-21AUX SOCKET0 Communication Headphones HS-4 0 High Class Communication Headphones HS-50 Communication Externat Speaker SP-71 0 Ham Clock HC-l0SECTION 7. TROUBLE SHOOTING SYMPTOMSCAUSE COUNTERMEASUREK E N W O O D TS-78070cm/2m-FM/SSB/CW TS-780Technische Daten InhaltsverzeichnisTeil 2 - Betriebsvorbereitung EinleitungTeil 1 - Besondere Eigenschaften I I il It II il II /I !ITeil 3 - Bedienungsorgane und ihre Funktion Funktionen des Meßinstruments Schalterstellungen und -funktionenCoaxbuchse Typ N zum Anschluß von 70 cm-Antennen Teil 4 - Einbau und Anschluß Fig. Anschluß einer Kombi-Antennean den TS-7801B. Antenna installation Fig. 6 - Günstiger AntennenstandortFig. 7 - Antennenanpassung Fig. 8 - AntennenanschlußFig. 9 - Voreinstellungen für FM-Empfang Teil 5 - BedienungsanleitunglL.Millii Fig. 10 - Einstellung bei Sendebetrieb I11 Einstellung der MikrofonverstärkungFig. 13 - Einstellung des RF GAIN-Reglers Fig. 14 - Wirkungsweise der Zf-Shift4 M eter 6 TurnFig. 15 - Semi break-in-Betrieb Tabelle TabelleTabelle TabelleFig. 16 - Abrufen gespeicherter Memory-Frequenzen Fig. 15 - Eingabe von Frequenzen in die MemoriesStellung des Schalters SCAN W Stellung ,,10 MHz” Fig. Stromversorgungskabel für Mobilbetrieb Teil 6 - Lieferbares Sonderzubehör Fig.Typischer Transceive-Betriebüber OSCAR-Satellit Fig. 19 - Zusatzbuchse AUXFestgestellte 75035,Telex:410817triod Page Page Page Page Page Page Page Page TOP & BOTTOM INTERNAL VIEWS A V R unit X43-1420-00 Control unit PLL unitX50-1770-00 IF unit X48-1350-61 4 3 0 H E T unit X50-1790-00