background image

DISTRIBUTION AMPLIFIERS

400-0004-004

3

ABOUT YOUR DA1804NT

2

DA1804NT

1-In, 4-Out Video Distribution Amplifier

The 

DA1804NT

is a 1-In, 4-Out  Distribution 

Amplifier designed to allow the connection of a 
single video source to as many as four display or 
recording devices.

The 

DA1804NT

can pass NTSC, PAL, and SECAM 

composite video signals. It can also pass 
high-resolution monochrome computer video, such 
as grayscale signals used in medical imaging. The 

DA1804NT

can handle video signals with levels up 

to 1.5 Vp-p.

State-of-the-art  technology gives the 

DA1804NT

bandwidth of 350 MHz with a very flat frequency 
response up to 200MHz. It also offers a differential 
gain of 0.15% and a differential phase of 0.15 
degrees.

The 

DA1804NT

Distribution Amplifier has a pre-set 

gain of 0 dB;

each output is completely 

independent and can withstand shorts to ground. 
Extremely rugged and compact, the 

DA1804NT

fits 

easily into tight spots. Using high-quality 75 ohm 
coaxial cable, it can drive an NTSC signal 400 ft 
(122 m) or more.

TECHNICAL SPECIFICATIONS

3

Specifications are subject to change.
See 

www.altinex.com

for up-to-date information.

FEATURES/DESCRIPTION

DA1804NT

GENERAL

Inputs

BNC female (1)

Outputs

BNC female (4)

Compatibility

NTSC, PAL, SECAM, 

High Resolution 

Monochrome 

Computer Video

Table 1. 

DA1804NT

General

MECHANICAL

DA1804NT

Material

Gray 0.1” Al

Top Label

Lexan

Height (inches)

1.0 in (25 mm)

Width (inches)

4.6 in (117 mm)

Depth (inches)

3.5 in (89 mm)

Weight (pounds)

0.4 lb (0.18 kg)

T

°

Operating

10

°

C-35

°

C

T

°

Maximum

50

°

C

Humidity

90

%

non-condensing

MTBF (calculations)

40,000 hrs

Table 2. 

DA1804NT

Mechanical

ELECTRICAL

DA1804NT

Input Video Signal

Analog Signal

1.5 Vp-p max.

Impedance

75 ohm

Output Video Signal

Analog Signal

0 dB +/- 0.5 dB

Impedance

75 ohm

Frequency Compatibility

Video Bandwidth 

350 MHz @ -3 dB

Coupling

DC

Power

External Adapter (included)

9 VDC 500 mA 

Power Consumption

0.4 W max.

Table 3. 

DA1804NT

Electrical

Summary of Contents for ALTINEX DA1804NT

Page 1: ...DISTRIBUTION AMPLIFIERS MANUAL PART NUMBER 400 0004 004 1 IN 4 OUT VIDEO DISTRIBUTION AMPLIFIER USER S GUIDE DA1804NT...

Page 2: ...3 TECHNICAL SPECIFICATIONS 3 PRODUCT DESCRIPTION 4 APPLICATION DIAGRAMS 5 DIAGRAM 1 TYPICAL SETUP 5 DIAGRAM 2 INTERNAL VIEW 5 INSTALLING YOUR DA1804NT 6 OPERATION 6 TROUBLESHOOTING GUIDE 6 POWER LED...

Page 3: ...possible and should be easily accessible 1 4 CLEANING Clean only the connector area with a dry cloth Never use strong detergents or solvents such as alcohol or thinner Do not use a wet cloth or water...

Page 4: ...Extremely rugged and compact the DA1804NT fits easily into tight spots Using high quality 75 ohm coaxial cable it can drive an NTSC signal 400 ft 122 m or more TECHNICAL SPECIFICATIONS 3 Specificatio...

Page 5: ...DISTRIBUTION AMPLIFIERS 400 0004 004 4 PRODUCT DESCRIPTION 4 INPUT VIDEO FEMALE BNC 9VDC 4 VIDEO OUTPUTS SIGNAL LED POWER INPUT INPUT VIDEO 9VDC INPUT POWER SIGNAL LED OUTPUTS 4 VIDEO FEMALE BNC...

Page 6: ...TRIBUTION AMPLIFIERS 400 0004 004 5 APPLICATION DIAGRAMS 5 DIAGRAM 1 TYPICAL SETUP DIAGRAM 2 INTERNAL VIEW DA1804NT INPUT BNC POWER 9VDC 500mA P S SIGNAL DETECT POWER OUT 1 OUT 2 OUT 4 OUT 3 OUTPUT BN...

Page 7: ...8 We have carefully tested and found no problems in the supplied DA1804NT however we would like to offer suggestions for the following 8 1 POWER LED IS NOT ON The Power Signal Present LED should be on...

Page 8: ...e image on the local monitor and verify the quality is good If the local image is good see Cause 2 Cause 2 Poor signal transmission Solution Check the cables for continuity and make sure that connecti...

Reviews: