BATTERY INSTALLATION Dry Patisseries: Place the irides switch in the OFF position. Remove the side that covers the battery case and: speaker:::install the batteries into the hatter tubes (thee in each) taking care 1o absolve the same.
Next;: install “five: nickel-encomium batteries i the’ battery tubes i1 the same’ direction, Make certainty minus side s next to’ the siring: After installation of the charger s batteries in:the case, connect the connector from the transceiver housing 1o the socket of the charger. Make sure the switch. of the charger {5 ON.
EXTERNAL POWER PLUG: CONNECTION External Power Source Fa ruse ot home of in the cay, please Lse the external power source which assures you of stable communication without concern about battery consumption 1 Use: either & regulated power supply or car battery: of 13.8V. DG and iof over: TA current. capability. {Though this transceiver may world at 11 1o 18V DE use 18 preferably at the rated Voltage) Correctly connect the external supply: as shown: in:the: figure.
6. 8 10 115 12: 13. DIAL SCALE ‘The dial is divided into. 10K Hz increments with 2 Total coverage of 200K Mz, The operating frequency is read by adding the: frequency shown: on the dig 10 that shown: on: the crystal switch, 'or in the ‘case of ‘the 'spare crystals, by adding the dial reading to the Lowest range’ frequency of the crystal installed. (see page) L TUNING KNOB Tunes the frequency.
14 SNAP LOCKS! Convenient: the 'sides in place. To: remove them: for any Service of 1o replace ihe batteries, simply pull oust on the center of the snap-lacks and the cover can easily be removed: Wuhan replacing the: covers: be sure:that vou have placed the ‘covers: proper S initiate ‘grooves provided . then push down on the netter of the snap-leek.
o dell e bas R . 4. i After the bestiaries have bean installed; or the ICARUS is'connected o an‘external power source, turn the MODE switch to the desired sidewinder the MODE position, " 1 the surrounding Eight i o0 dim to see the S & RF-meter or frequency. hurt the switch to'the desired side band in ths LIGHT situation; and: the meter and dial will be illuminated. Extend the whip.
POSSESSION: SPARE CRYSTALS The: G402 comes with 2 crystals installed initiate st scintillation for operation between 432,00 N43240MHZ with sate crystal Covering 200KHz. you wish 10 work another part of the band, all that Is needed is to install the proper Trendy crystal in either the A or B spare crystal socket, squeak it and you are ready for operation: false s crystal can be installed to work the 435.00 A35.
INSTALLATION 1. i Place: the 'mode switch in the OFF position. | Remove the ‘side that: covers the main Nit {opposite side of the battery case), sin BATTERY INSTALLATION. (ses gaps 4), 2. Remove the shipload case they covers the crystal sockets. Insert additional crystals into A candor B spare crystal socket.
Ses Rt st ' CIRCUITS Section:X shows a block diagram of the 1C402. Tha repaving section is a dual conversion superheroes, employing a wide band variable crystal oscillator (VXO) ss the 2nd Local oscillator. : The transmitting section is a dual conversion system which employs s filterer SSR generator sing 2 ‘10.74MHz crystal filter ‘and the: same local ‘oscillators o3 the receiving section.
which s fed 1o AF amplifier 104, which has approximately 35d8 Gain 1o drive the speaker) 022 applies “bias: Yo 1C2 1o mites: audio during transmit: and: provide: silent transmit receive Switching: NOISE: BLANKER A part 'of the ‘cutout signet from FL T3 amplified by ICh and 166 and detected by D30 and D31, This detected outputs: separated: into audio signal components: and pulse: components i The signet ‘comp orient i3’ integrated by R100 ard G164, then amplified by 020, and fed through the butter amplifier
i front and back of Q12 and 013, are Helical cavities 1o suppress the spurious signals. The final transistor: Q17 s a: newly: developed mesh-emitter transistor which 18 extremely: effective against overloading: BIAS CONTROL, ALG, RE-METER CIRCUIT 015 dnd Q16 on the main unit control the idling current oF 014 and 017 respectively. Quandary Q18 function ‘as voltage regulators and ‘lower the impedance: 3t the bass of Q14 and Q17 t0 minimize any distortion caused in the Hangar amplifiers.
Parenthetic is:OFE or when i the transmit mode, both Q1 and (02 are turned OFF and RIT: adjustment resistors R and 84 set the RIT control voltage, For the RIT circuit; 9V regulated voltage is used, and to avoid the frequency instability caused: by the power source fluctuation, this circuit has the current regulator consisting of nd D2 and: Zenger diode: DA for voltage regulation. This regulated power sauce is also supplied 10 the: 1st focal oscillator. BEQUEST. -CW.
