COMTECH TECHNOLOGY CO., LTD.

DFM2400RTIM8-00

SPECIFICATIONS Input Frequency Range

2.4 ~ 2.483 GHz

Video Output

RCA Jack

Video Voltage RX TX

1V 1V

Audio Output

RCA Jack

Never try to adjust IFT.

Audio Voltage RX TX

Audio 1 0.7 ~ 1.0 V 1V

Audio 2 0.7 ~ 1.0 V 1V

DC Power

+15V 500 mA

Dimensions

See p. 3

OPERATIONS Channels

Oct. 12, 1999

To adjust contrast of picture, please adjust VR.

Unless specially assigned, the 4 channels ex-factory are: CH1: 2400 MHz CH2: 2427 MHz CH3: 2454 MHz CH4: 2481 MHz

To select CH1, press button SW once, and LED 1 will illuminate. Pressing button SW again, it will go to next channel, and next LED illuminates. LED illuminates to indicate which channel it is receiving.

The DELAY time for each channel is selectable (see p. 2) Unless specially assigned, the DELAY time for each channel ex-factory is 2 seconds.

To auto-scan each channel, press button SW for 3 seconds.

1

COMTECH TECHNOLOGY CO., LTD.

DFM2400RTIM8-00

B.B

B.B

R39 0.5R

R26 3.3K

C32

R40

220u/25V

0.5R

8 Cd

R3 4.7K C20 2.2u/50V

7 Si

6 V+

L2 6.8uH

IViN

NJM2360

R6 2K

J1 DC POWER

R25 1K

5

D2 IN4004 8 IN1

C21 470P

7 6 G1A V+

5 OUT1

Cs

Es 1

R27 R7 680R 4.7K

Ct 2

D3 IN4004

GND 4

3

NE 592 G1B V2 3

IN2 1

R1

C18 220P

OUT2 4

R2 47K

4.7K R35 4.7K C1 220n

R36 220R

VR10K

L5 6.8uH

L4 6.8uH

C22

C19 220u/25V

LNB

M O D U L E

B.B C8 47n

C23

390P

USID

Q3 2SC2412

R5

L6 6.8uH C30 47u/16V LOWESR

L1 220uH

D1

2SD1383K

Q2

680P R8 47K

R28 390K

R24

C16

0R

470uF/16V

5V R11 10K

TU

C17

J2 VIDEO

22uF/25V SDA

R37 100R

SCL

C24

C31 470u/16V

22u/25V

R19 1K

R10 390R

R9

C25 1n

C26 1n

F1

C9 20P

6.0M C7

68K Q1 2SC3793

L3 6.8uH

R20 1K

F2

220P R17

KIA6003S

6.5M B Y P A S S

L E V E L

M U G D D T N E E I E D T T N 1 2 3 4 5 6 7

B Y P A S S

O U V T C C 8 9

M U G D T N E I E D T N 1 2 3 4 5 6

R38 470R R4

O D U V E T C T C 7 8 9

R13 100K

C2 10n

PB3 PB2 MODE H

L FM900 RECEIVER

H

H FM2.4G RECEIVER

C6 1K 10n T1 14uH

100n

J4 AUDIO1

R33 100K

R15 100K

PIC16C54 R22

C13

C15 1K 10n

100n

OSC OSC 1 RA0 RA1 RB4 RB5 RB6 RB7 VDD 2 10 11 12 13 14 15 16 17 18

C28 56P

C11 10n

100K

6 5 4 3 2 1 9 8 7 RB3 RB2 RB1 RB0 VSS MR RTCC RA1 RA2 C12 220n

10K

R23 10K

C4

C27 43P

R16 100K

R14 100K

R31

C3 220n

15K

R12 10K

VCC SW1

A F

L E V E L

R30 R29 470R

C10 100n

KIA6003S

A F

R32

J3 AUDIO2

27K

T2 14uH C5 10P

C29 20P

R21 10K

R18 10K

R34

C14 10P

1K

PB1 PB0 SCAN TIME L

L

2 SEC

L

H

4 SEC

H

L

6 SEC

H

H

8 SEC

COMTECH TECHNOLOGY CO.LTD. Size

Document Number

Date:

Oct. 12, 1999

REV DFM2400RTIM8-00

C October 11, 1999

Sheet

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of

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COMTECH TECHNOLOGY CO., LTD.

Oct. 12, 1999

DFM2400RTIM8-00

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