Product description, Package contents, Specifications – Holland Electronics HMDD-1U User Manual
Page 2: Search, Nosig, A69.1, Default, Default ok, Volume 75, 3 / letterbox
This package contains:
-
One HMDD ATSC Mini Demodulator
-
One HMDD Installation Manual
2. PRODUCT DESCRIPTION
The HMDD is an ATSC professional grade mini demodulator designed
for cost effective digital-to-analog conversion of an unencrypted 8VSB (Off-Air
SD/HD TV signal) signal to baseband.
NTSC video and left and right stereo audio outputs. All of the 18 ATSC video
formats including HD format can be received by the HMDD and converted to
display on non-digital TV sets over analog channels with the use of a modulator.
1. PACKAGE CONTENTS
-1-
１
Input frequency range
57-803MHz
２
Channels
2-13（VHF）14-69（UHF）
３ 8VSB input channel bandwidth
RF
6 MHz
４
Data rate
19.392 Mbps
In
put level range
-7 dBm to -80 dBm
7
A
djacent channel rejection
60dB
Image
rejection
40dB
9
Demodulation mode
8VSB, 8VSB MP
10
S
ymbol clock frequency
10.762 MHz
11
I
nput connector
75 ohm F-female
GENERAL
1. Video output (analog)
Frequency response
30Hz to 4.2MHz, +/-1.5dB
Video output level
1Vp-p +/- 0.2V
Impedance
75ohms
Connector type
75ohm F-female
2. Audio L/R outputs
Impedance
10K ohms.
Level
1.3Vp-p +/-0.2V
Frequency response
30Hz to 20kHz, +/-2dB
Distortion
1% max
Connector
RCA.
3. Power consumption
Power
DC5V / 350 mA 1.75W
DC12V / 250 mA 3 W
235 x 27 x 88mm
５
Noise figure < 8dB
6
8
3. SPECIFICATIONS
1
[ Air ]
2
3
[ Search ]
4
[ Nosig ]
5
[ A69.1 ]
6
-6-
Press SCAN button for at least 10 seconds to reset to facory default.
CH- button to increase or decrease
volume . (Preset audio volume level of 75%, sample 12)
h.Press and hold ZOOM button, select CH+ to display current signal strength.
（
sample 13）
i. Press and hold ZOOM button, select CH- to display current signal quality.
（
sample 8 ）
j.
7
8
9
[
Language1
]
10
[ Default ]
11
[ Default
Ok ]
12
[ Volume
75% ]
13
14
[ Strengh
96 % ]
[ Quality
100 % ]
g.Press and hold AUDIO button, select CH+ or
k.Fourteen samples of “8” shape display as below:
15
[ 4:3 /
Letterbox]
16
[ 4:3 /
Zoom]
17
[ 4:3 /
Center]
[ 4:3 /
Full]
[ 16:9 /
Zoom]
[ 16:9 /
Center]
[ 16:9 /
LetterBox]