TRANSCEIVER PROGRAMMING

Talk Permit Tone - When enabled, a short tone sounds after a request for a group call has been approved by the main controller. This indicates that speaking can begin. When disabled, no audio feed- back is used to indicate when speaking can begin.

System Scan - Selects the Priority Monitor Scan list selected by the channel (see “Priority Monitor Scan Screen” description in Section 3.6.7). If “No Scan

List” is programmed, scanning is not selectable on that channel.

Auto Scan - When enabled and a channel is selected, the radio automatically begins scanning the scan list associated with that channel. When disabled, scan- ning can only be started manually by the Scan option switch.

Table 3-1 Call Guard (CTCSS/DCS) Codes and Tones

Recommended Tone Call Guard Codes

Code

Freq

Code

Freq

Code

Freq

Code

Freq

Code

Freq

 

 

 

 

 

 

 

 

 

 

01

67.0

10

94.8

19

127.3

28

173.8

38*

250.3

02

71.9

11**

97.4

20

131.8

29

179.9

39**

69.3

03

74.4

12

100.0

21

136.5

30

186.2

40**

206.5

04

77.0

13

103.5

22

141.3

31

192.8

41**

229.1

05

79.7

14

107.2

23

146.2

32

203.5

42**

254.1

06

82.5

15

110.9

24

151.4

33

210.7

 

 

07

85.4

16

114.8

25

156.7

34*

218.1

 

 

08

88.5

17

118.8

26

162.2

35*

225.7

 

 

09

91.5

18

123.0

27

167.9

37*

241.8

 

 

 

 

 

 

 

 

 

 

 

* These tones normally

are not used because of their close proximity to the voice frequencies

 

 

** This tone is normally not used because it may cause interference with adjacent tones.

 

 

 

 

 

 

 

 

 

 

 

 

Recommended Digital Call Guard Codes

 

 

 

 

 

 

 

 

 

 

 

 

 

023

065

131

172

261

346

431

532

654

743

025

071

132

174

263

351

432

546

662

754

026

072

134

205

265

364

445

565

664

 

031

073

143

223

271

365

464

606

703

 

032

074

152

226

306

371

465

612

712

 

043

114

155

243

311

411

466

624

723

 

047

115

156

244

315

412

503

627

731

 

051

116

162

245

331

413

506

631

732

 

054

125

165

251

343

423

516

632

734

 

 

 

 

 

 

 

 

 

 

 

FCC Chan. Mobile Rx

No.

Freq.

Mobile Tx

Freq

800 MHz Channels

FCC Chan.

Mobile Rx

Mobile Tx

No.

Freq.

Freq

 

 

 

FCC Chan.

Mobile Rx

Mobile Tx

No.

Freq

Freq

 

 

 

1

851.0125

806.0125

9

851.2125

806.2125

17

851.4125

806.4125

2

851.0375

806.0375

10

851.2375

806.2375

18

851.4375

806.4375

3

851.0625

806.0625

11

851.2625

806.2625

19

851.4625

806.4625

4

851.0875

806.0875

12

851.2875

806.2875

20

851.4875

806.4875

5

851.1125

806.1125

13

851.3125

806.3125

21

851.5125

806.5125

6

851.1375

806.1375

14

851.3375

806.3375

22

851.5375

806.5375

7

851.1625

806.1625

15

851.3625

806.3625

23

851.5625

806.5625

8

851.1875

806.1875

16

851.3875

806.3875

24

851.5875

806.5875

November 1999

 

Part No. 001-7780-500

3-22

Page 58
Image 58
EFJohnson 7780 service manual Call Guard CTCSS/DCS Codes and Tones, Recommended Tone Call Guard Codes Freq