SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION: SECTION 8 . MEMORY AND SCANNING OPERATION 10 83 MEMORY CHANNEL SELECTION i 8.2 PROGRAMMING MEMORY: CHANNELS . 8:3 I MEMORY CLEARING B4 MEMORY SCAN Lol MODE SCAN ol 86 PROGRAMMED SCAN 87 PRESUMPTION OTHER FUNCTIONS 91 SWERVE READINGS.
(LI POWER SWITCH I ON OFF (Zr Automatic GAIN CONTROL SWITCH [AGC] AGe FAST ¥, oW (I METER SWITCH &) TRANSMIT/RECEIVE (T/R) SWITCH TRANSMIT RECEIVE (B MIC CONNECTOR This:is e push-lock switch which ‘controls: the: iInput:DC power: to the (CANASTA When: the 1CPS30AC power supply s dded, the switch:also acts as the AC power supply switch. Power is: supplied to the transceiver when the: switch s pushed (N and locked.
U DIAL LOCK BAND SWITCH (578 INDICATOR JUDICIAL FUNCTION SELECT s Witch [peso % DFS INDICATOR HANDBAG SELECT SWITCH [BAND] BANDANNA SELECT INDICATOR @8 INCREMENTAL TUNING CONTROL [RITALIN RITZ AT RiT i oL NOTCH FILTER: CONTROL PHENOTYPE NOTCH This switch electronically Socks the IC-75YA on the currently dis: played frequency and deactivates the TUNING CONTROL. This function: s useful while rag: chewing: or. for mobile operation after. the IAMBIC IS set o the desired frequency .
AB SPLIT (DUPLEX) SWITCH ) MEMORY SWITCH [VENOM IMITATIVE] GO MEMORY. WRITE SWITCH [WRITE] GD FREQUENCY TRANSFER SWITCH M VFO] This:switch: determines.whether one VEO s used for both transmit: ting and receiving, or whether both VFQ A and VFQ Bi are used; '« Single VEO operation SPLIT SWITCH QUT: » Dual VFQ operation SPLIT: SWITCH: TN Deter to: SECTION 725 for ove information. This switch selects: either the VFO or: MEMORY. CHANNEL mode for-tutting purposes: e P shedding 0l Push SWITCHOVER.
0 RECEIVER INPUT [RECEIVE ANT IN} G TRANSVERSE JACK [X-VERIER] G SPARE JACK 73 GROUND TERMINAL TB KEY. JACK II EXTERNAL SPEAKER JACK (ACCESSORY SOCKET {EDUC POWER SOCKET [DC 13.8v] I8 1CEX309 (OPTIONAL INTERFACE UNIT CONNECTOR POSITION @3 ICPS35 (OPTIONAL) ‘AC POWER SUPPLY SOCKET POSITION | FINAL. For ‘best results, use the heaviest gauge wire or This is an input jack which connects to the receiver BF stage.
§5:4 RATTY TERMINAL UNIT SUING: A: HIGH SPEED: RELAY: SUING A LEVEL CONVERTER SLIDING AN ASK GENERATOR When operating: RATTY, connect the ACC CONNECTOR pin 8.and pin 8 ground) viz a high speed relay or through § level converter for conversion to [TTL level 1o your teletypewriter.: The audio tones for your: terminal are available from pin 8 roundel. . The AF ‘output:level is about 300mVp:p for en 58 signal.
§:6:88TV UNIT 8.6 ACCESSORY SOCKET CONNECTIONS Outside: via: SHAD CONTROL VOLTAGE Stow Scan Television operation is also possible with the IC75TA. #Connect the CAMERA OUTPUT devour SST Unit o the ALEC CONNECTOR pinion MIC CONNECTOR pin T3 » Tha audio: output: signal: {300mVo-pl: is ‘available: from-pin 4 and. ‘the ground is pin 8 Various signals are: available ‘from the accessory socket such:as modulation output, receiver cutout, T/ changeover: etc: PIN NO.
SECTION & GENERAL OPERATION 81 SETTINGS SWITCH AND CONTROL: SETTINGS 62 BASIC OPERATION RECEIVING 1} Power ON: After it INSTALLATION Instructions have been followed in SECTION 4, including connecting 4 50 ohm antenna system, set the controls and switches as indicated below. 1) 8 supply other: than the 10:PE35, 1C-PB30 or IC-PS16 is used; ‘check that the AC power supply output voltage 1§ 13.
2} ‘Celgene MODE: THIAMINE BREECH MODES T SCAN 3} Select BAND. BAND: SELECT: SWITCH 1 TUNING CONTROL 4% Adjust AE GAIN CONTROL. AP GRS AE GAIN Ao output ingresses, 5] Rotate TUNING CONTROL TRANSMITTING Red LED lights when transmitting, FREQUENCY SELECTION 2) Pl sh the SSB SWITCH to select the S5B mods. the BAND SELECT: SWITCH.: Tha: BAND SELECT INDICATOR lights. | Rotate the TUNING 'CONTROL 1o select ahe Taney Band. | (Note! [Ply the "MHz' digit change as the: TUNING CONTROL i turned.
{2): CW NARROW RECEIVING CIT A B YRR oY @m #OPTIONAL FILTERS {3} CW TRANSMITTING NOTE! Soe SECTION 4 -6 CW KEY for Crikey Connections, *CW: SIDE TONE ‘MONITOR #BREAK-IN OPERATION 6-5 AM OPERATION {11 AM RECEIVING The 10:751A has already: FL:32A fitter .installed, 1 an optional. narrow . filter: His installed, push the FUNCTION SWITCH then: the CW SWITCH 10 select the narrow filter thereby: improving the receiver selectivity with higher shape factor: Background.
R L FILTER C-Firemen SWITCH PETAL NOTCH 2 AM TRANSMITTING 66 FM OPERATION (1) FM RECEIVING RS SO ATy SQUELCH FUNCTION LEBESGUE B Tone Raises e threshold {vale; ( 3) Push the AM SWITCH. Attune naan AM signal with the TUNING CONTROL sing the meter to: peak the signal. 5 Push: the FILTER SWITCH 1o select the narrow receive selectivity. FILTER SWITCH: | BANDWIDTH ON: N KHz DEVOUT) BkhHz NOTE: The PRT CONTROL: {pass band tuning) has no effect.
{2} FM TRANSMITTING {3} FM: REPEATER OPERATION NOTE: 'The 'UT-30 ek preset with an 88.5Hz tore. Change the UT-30 programming if a different frequency It required. 8:7 0 RATTY: OPERATION {1 RATTY. UNIT CONNECTIONS {2): RY. RECEIVING. GRN 1 3 i Transmitting an: EM signal iis essentially ‘the same a5 for 858 trans: mission; 1356th the MIC GAIN CONTROL to the center position; 2) Select the transmit mode with either: the T/R: SWITCH or the P SWITCH: on the microphone. into:the microphone in a normal voice.
1156th CONTROLS and SWITCHES: 2V Push IN POWER SWITCH! s, 4y 117 Lt Bad 3) Select GENERAL COVERAGE made by pushing HAM/GENE SWITCH: S 1or LA 0T 1 Ague X GENE" lights: 5 GENETIC db ot light NOTE: in ! the HAM BAND ‘mode, ‘the’ fetters ¥ Push devised MODE SWITCH! oy ] By Carcinogens tires oo 51 Sal act desired band and frequency. 4 Adjust AR GAIN CONTROL. 1] Set the CONTROLS and SWITCHES & stated in SECTION 6.4 SETTINGS. Other controls are unrelated: to operation: thingy mode.
FULL BREAK:IN OPERATION WITH AUTOMATIC KEYING USING AN IAMBIC: PADDLE 745 SPLIT (DUPLEX) OPERATION {Example Receiving: Transmitting: Receiving {VEQ A& o Tron 18510 gl T Transmitting @ Ives F.8. FM REPEATER OPERATION SWITCH/CONTROL POSITION MODE CW or CW NARROW VOX ON {1} KEY: SPEED 12 CLOCK ROUNDELAY: 10 0/CLOCK TRANSMIT/RECEIVE | RECEIVE 2¥ Adjust the KEY SPEED CONTROL for g 'suitable Keying sped.
3] Rotate: INCREMENTAL | TUNING CONTROL counterclockwise, Receive 1 14.2639MH2 Transmit 14.2078MHz o (906 18 384, 3§ Push RIT SWITCH to worn. OF F the RIT. 42678 it 2y 4) Ash the BIT SWITCH again 1o win! ON the RITE 1978 T8 350 ok BY Push the MARITZA CLEAR SWITCH.
3BT function activated. Receive 1 14.2630MHz. Training: 18.2678MHz. ;E-me g Push RIT SWITCH t0 trn OFF tha RIT: Delved’ 1426 Mex Transmits 14,7678z 147618 RIT already activated: Receive 1 14.2639MH2 Transmit:: 14.2678MHz g Push ATX SWITCH to tum ON the JTX factions Receiver: © 14.
7 <12 MICROPHONE UP/DOWN OPERATION FREQUENCY CONTROL U SWITCH: DOWN SWITCH. MEMORY CHANNEL SELECTION 713 NONCOOPERATION 260 Age o Sm 754 PREAMBLE SWITCH OPERATION #PREAMBLE SWITCH: OPERATION: ATTENUATE {ATT) SWITCH OPERATION 11 Each push of the UP or DN (down) SWITCH on the supplied microphones changes the operating frequency one increment Uup o ‘down respectively. 2¥ Holding either switch :down changes :the ‘operating: frequency: continuously: in the same manner as turning the TUNING CONTROL.
SECTION 8 MEMORY AND SCANNING PORE 81 MEMORY. CHANNEL SELECTION 13 Turn ON the DOWER, 21 Push vhe VENOM SWITCH, MEMORY displays: e iHd 0 iy 3} Notate the TUNING CONTROL! Turpin the TUNING CONTROL clockwise: e 142300 il o aphid 8.2 PROGRAMMING MEMORY. CHANNELS 1} Detect berating perimeters Frequency, made gnd THIAMINE ‘mode will be: memorized 48 TON The 1C-751A has thirty-two memory.
8.5 MODE :SCAN. Th Push VENOM SWITCH. 2} Sadist SQUELCH CONTROL. 3} :Push MODE-S SWITCH, A Pugh SCAN SWITCH! 88 PROGRAMMED SCAN 13 Behoove the scan Emits in memory channel 0 and 02 NOTE: Store ‘both scanning limits in: MEMO 0T and MEMO 07 using either tha HAM or ihe GENE mode. | HAM mode Limits Must be i the mass band, 21 Select VEO A or Bi with VFQ A/B SWITCH. 3 Ag just SQUELCH CONTROL 4} Push SCAN SWITCH ) Sean stopwatch a signal propensity satchel. Stan returnees after 10 seconds.
14} FL-33 INSTALLATION! [trees B g NET WOE 1C-PS38 INTERNAL POWER SUPPLY. INSTALLATION o+~ D POWER SOCKET Q) WOB and WOO: jumper wires ‘on the MAIN ‘unit: must be changed as whose in the diagram on page 45, . 4} The: FL-70 snd the CFI405KS can now be defected by pushing the FILTER SWITCH on' the front panel [IN. The receive bandwidth wiki be 2.8kHz. The: :ELBOW: and : FLA canine selected: By -placing the FILTER: BITCH at the (OUT position. The: bandwidth will then b 2.3kHz .
ON 11 CIRCUIT DESCRIPTION 1123 RECEIVE CIRCUITS {1). RF CIRCUITS REUNION: {23 1F CIRCUITS SRE UNIT MAIN: UNIT Transceiver: signal from the antenna connector s fed to J10 of the RE unit in the receiver circuitousness DA is tared OFF end ALt on the CONNECTOR unit is turned ON.
1152 TRANSMIT CIRCUITS (1L AR CIRCUITS MAIN: UNIT. WHF COMPRESSOR SRF UNIT The output: from. the: filter {3 converted 3 MHz signal again: by the 1C1] mixer through the GA2 butter amplifier. EM signals from ‘the. F18. filter are fed 'to & special FM circuit. The MHz signal is supplied to an amplifier circuit consisting 'of 043 4nd 044, then iz supplied to the AGC or the DETECTOR circlet.
#VCO CIRCUIT *#LOOP: SYSTEM 114 LOGIC CIRCUITS: {1} CPU INPUT CONTROL: CIRCUIT 2} DISPLAY CIRCUIT The performance af the VCO is very important for PLL operation. in ‘order to ‘obtain a high ‘carriertomnpise (CIN ratio and 2 stable oscillator output, fogy arbitrate Vets are used: Each is assigner 5 quarter of the total necessary bandwidth. The power supply. for the V Cos is doubly regulated when compared with the reference frequency oscillator.
{2): SIMPLE: FREQUENCY. ADJUSTMENT NOTE: This adjustment calibrates the reference calibrate on. any other frequent. ‘oscillator, therefore: it i unnecessary 1o {3} ELECTRONIC KEYED WEIGHT CONTROL NORMAL 11803 e @) CW: SIDE TONE FREQUENCY. ADJUSTMENT {51 SCAN SPEED ADJUSTMENT (8} BEO ADJUSTMENT {7} TRANSMIT AUDIO ADJUSTMENT.
