Icom IC-22S Instruction Manual Download | Manualshive

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Icom IC-22S PLL Synthesized 2-Meter Transceiver

Instruction Manual and Service Notes

19

Freq.

"N"

+Offset

-Offset

D7

D6

D5

D4

D3

D2

D1

D0

147.090

180

147.690

146.490

1

0

1

1

0

1

0

0

147.105

181

147.705

146.505

1

0

1

1

0

1

0

1

147.120

182

147.720

146.520

1

0

1

1

0

1

1

0

147.135

183

147.735

146.535

1

0

1

1

0

1

1

1

147.150

184

147.750

146.550

1

0

1

1

1

0

0

0

147.165

185

147.765

146.565

1

0

1

1

1

0

0

1

147.180

186

147.780

146.580

1

0

1

1

1

0

1

0

147.195

187

147.795

146.595

1

0

1

1

1

0

1

1

147.210

188

147.810

146.610

1

0

1

1

1

1

0

0

147.225

189

147.825

146.625

1

0

1

1

1

1

0

1

147.240

190

147.840

146.640

1

0

1

1

1

1

1

0

147.255

191

147.855

146.655

1

0

1

1

1

1

1

1

147.255

191

147.855

146.655

1

0

1

1

1

1

1

1

147.270

192

147.870

146.670

1

1

0

0

0

0

0

0

147.285

193

147.885

146.685

1

1

0

0

0

0

0

1

147.300

194

147.900

146.700

1

1

0

0

0

0

1

0

147.315

195

147.915

146.715

1

1

0

0

0

0

1

1

147.330

196

147.930

146.730

1

1

0

0

0

1

0

0

147.345

197

147.945

146.745

1

1

0

0

0

1

0

1

147.360

198

147.960

146.760

1

1

0

0

0

1

1

0

147.375

199

147.975

146.775

1

1

0

0

0

1

1

1

147.390

200

147.990

146.790

1

1

0

0

1

0

0

0

147.405

201

148.005

146.805

1

1

0

0

1

0

0

1

147.420

202

148.020

146.820

1

1

0

0

1

0

1

0

147.435

203

148.035

146.835

1

1

0

0

1

0

1

1

147.450

204

148.050

146.850

1

1

0

0

1

1

0

0

147.465

205

148.065

146.865

1

1

0

0

1

1

0

1

147.480

206

148.080

146.880

1

1

0

0

1

1

1

0

147.495

207

148.095

146.895

1

1

0

0

1

1

1

1

147.510

208

148.110

146.910

1

1

0

1

0

0

0

0

147.525

209

148.125

146.925

1

1

0

1

0

0

0

1

147.540

210

148.140

146.940

1

1

0

1

0

0

1

0

147.555

211

148.155

146.955

1

1

0

1

0

0

1

1

147.570

212

148.170

146.970

1

1

0

1

0

1

0

0

147.585

213

148.185

146.985

1

1

0

1

0

1

0

1

147.600

214

148.200

147.000

1

1

0

1

0

1

1

0

147.615

215

148.215

147.015

1

1

0

1

0

1

1

1

147.630

216

148.230

147.030

1

1

0

1

1

0

0

0

147.645

217

148.245

147.045

1

1

0

1

1

0

0

1

147.660

218

148.260

147.060

1

1

0

1

1

0

1

0

147.675

219

148.275

147.075

1

1

0

1

1

0

1

1

147.690

220

148.290

147.090

1

1

0

1

1

1

0

0

147.705

221

148.305

147.105

1

1

0

1

1

1

0

1

147.720

222

148.320

147.120

1

1

0

1

1

1

1

0

147.735

223

148.335

147.135

1

1

0

1

1

1

1

1

147.735

223

148.335

147.135

1

1

0

1

1

1

1

1

147.750

224

148.350

147.150

1

1

1

0

0

0

0

0

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Summary of Contents for IC-22S

Page 1: ...Icom IC 22S PLL Synthesized 2 Meter Transceiver Instruction Manual and Service Notes...

Page 2: ...dance 50 ohms Number of Channels 23 channels selected from any of the 132 channels on 15 KHz spacing Frequency Control Stabilized master oscillator PLL programmed by diode matrix TRANSMITTER Power Out...

Page 3: ...ial frequency stability Twenty two 22 channels are provided for operating convenience and versatility High Q stages provide minimum interstage spurious response A low pass filter is placed at the outp...

Page 4: ...d to these deficiencies If an AC power supply other than the matching supply is used with your transceiver make certain it is adequately regulated for both voltage and current Low voltage while under...

Page 5: ...crophone A high quality dynamic microphone is supplied with your transceiver Merely plug it into the proper receptacle on the front panel Should you wish to use a different microphone make certain it...

Page 6: ...cathode pointing UP The cathode lead is bent down to go through the board to connect to the other side After the diodes have been inserted for the channel turn the board over carefully so as to not ha...

Page 7: ...e mode and relative RF output in transmit mode The meter face is illuminated with a white lamp when the transceiver is switched on Channel Selector Selects one of 22 channels C O S lamp Also shows out...

Page 8: ...ust the volume control to a comfortable listening level of noise if no signal is present Carefully adjust the squelch control clockwise until the noise just disappears This is the proper squelch thres...

Page 9: ...eedback circuit connects to ground serves for adjusting the operating point of Q26 and insuring symmetry of clipped waveforms Dl 8 and D19 are temperature compensating elements for the 3 stage DC circ...

Page 10: ...handled in this stage is particularly high use is make of an aluminum die cast radiator which is in direct contact with the rear chassis and serves to keep the transistor temperature low in order to i...

Page 11: ...red audio signals are adjusted to level by the volume control and amplified to I watt power by IC 2 Squelch At point J 5 higher frequency discriminator noise is taken at a selected level by the R1 squ...

Page 12: ...ince maximum operating frequency of ICI is low of 1C6 whose operating frequency is high divides the Q6 output frequency by 2 to give signals of approximately 3 MHz or less which are supplied to the pr...

Page 13: ...equal to VCC of Pin 5 when reference pulses and divider output have the same frequency When these inputs to 1C2 are not phase locked they have a width proportional to the phase difference of the inpu...

Page 14: ...F 2nd LO and noise amplification circuits The 9 V for transmit is similarly taken from emitter follower circuit Q32 from the clamp circuit constituted by Ri43 D22 D21 and is supplied to the IDC 10 7 M...

Page 15: ...0 0 0 0 144 645 17 145 245 144 045 0 0 0 1 0 0 0 1 144 660 18 145 260 144 060 0 0 0 1 0 0 1 0 144 675 19 145 275 144 075 0 0 0 1 0 0 1 1 144 690 20 145 290 144 090 0 0 0 1 0 1 0 0 144 705 21 145 305...

Page 16: ...0 0 1 1 1 1 0 1 145 320 62 145 920 144 720 0 0 1 1 1 1 1 0 145 335 63 145 935 144 735 0 0 1 1 1 1 1 1 145 335 63 145 935 144 735 0 0 1 1 1 1 1 1 145 350 64 145 950 144 750 0 1 0 0 0 0 0 0 145 365 65 1...

Page 17: ...0 1 0 145 995 107 146 595 145 395 0 1 1 0 1 0 1 1 146 010 108 146 610 145 410 0 1 1 0 1 1 0 0 146 025 109 146 625 145 425 0 1 1 0 1 1 0 1 146 040 110 146 640 145 440 0 1 1 0 1 1 1 0 146 055 111 146 65...

Page 18: ...0 1 1 0 0 1 146 700 154 147 300 146 100 1 0 0 1 1 0 1 0 146 715 155 147 315 146 115 1 0 0 1 1 0 1 1 146 730 156 147 330 146 130 1 0 0 1 1 1 0 0 146 745 157 147 345 146 145 1 0 0 1 1 1 0 1 146 760 158...

Page 19: ...0 0 0 1 1 0 147 375 199 147 975 146 775 1 1 0 0 0 1 1 1 147 390 200 147 990 146 790 1 1 0 0 1 0 0 0 147 405 201 148 005 146 805 1 1 0 0 1 0 0 1 147 420 202 148 020 146 820 1 1 0 0 1 0 1 0 147 435 203...

Page 20: ...1 0 1 1 0 0 147 945 237 148 545 147 345 1 1 1 0 1 1 0 1 147 960 238 148 560 147 360 1 1 1 0 1 1 1 0 147 975 239 148 575 147 375 1 1 1 0 1 1 1 1 147 990 240 148 590 147 390 1 1 1 1 0 0 0 0 148 005 241...

Page 21: ...Q11 0 05V 13 80V E 0 75V 0 35V E Squelch Closed Q12 0 65V 0 75V E 0 8 0V E Q13 1 35V 5 8V 0 8V Q14 1 35V 9 4V 0 75V Q15 0 26V 12 9V 0 90V 0 13 5V 0 7V Q16 12 9V 6 60V 13 70V 13 5V 13 8V 13 8V Q17 0 1...

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