T2 MD-EM1 Bedienungsanleitung
ENCLOSURE MOUNT MODULATOR
OWNER’S MANUAL
UP
DOWN
OFFSET MODE
CHANNEL SELECT
IRC
HRC
STD
TV
VIDEO PRESENT
OUTPUT LEVEL
35dBmV
25dBmV
VIDEO
MODULATION LEVEL
MD-EM1
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 1
System Set-up::
DVD OUT
S-VIDEOS-VIDEO RF-OUTRF-OUT
VIDEO PRESENTVIDEO PRESENT
NONO NCNC CC
VVRRLL7575OO1K1KOO
HOME THEATER
SP-8
SP-2
ANTENNA/CATV
TVs
OUT
S-VIDEOS-VIDEO RF-OUTRF-OUT
VIDEO PRESENTVIDEO PRESENT
NONO NCNC CC
VVRRLL7575OO1K1KOO
MD-EM1
Introduct on::
Thank yo for p rchasing this T2 mod lator. T2 is the
brainchild of some of the most experienced professionals
in the c stom installation and home entertainment
ind stries. Please read thro gh this owner’s man al
so that yo will know how to operate yo r MD-EM1
properly. Always keep this man al in a safe place for
f t re reference.
The MD-EM1 is a digitally t ned, d al sideband, single
channel mod lator. It is designed to be mo nted in most
UL listed str ct red cable enclos res. It converts one
independent base band video and a dio signal to a
ser-selected UHF or CATV channel. Any TV connected
to the RF o tp t can receive the signal, provided that
the TV is t ned to the proper channel.
1
The diagram below shows how the MD-EM1 wo ld fit into
a typical RF system. See fig 1.
Fig. 1
2
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 2
Features::
The MD-EM1 is a d al sideband mod lator. When
mod lating, be s re to leave one channel open after the
channel that yo are mod lating to. For example, if yo
wanted to mod late onto channel 22, channels 22 and 23
need to be open, even tho gh nothing will be seen on
channel 23.
V deo Input Modulat on::
The MD-EM1 has adj stable video inp t mod lation.
The LED is set to light when the mod lation inp t level
reaches 87.5%. To effectively set the video inp t
mod lation level, rotate the knob slowly clockwise
ntil the LED becomes lit. Then, rotate it slightly
co nter-clockwise, ntil the LED goes off, for
optimal res lts. See fig. 2a.
VIDEO
MODULATION LEVEL
VIDEO
MODULATION LEVEL OUTPUT LEVEL
35dBmV
25dBmV
UP
OFFSET MODE
CHANNEL SELECT
IRC
HRC
STD
TV
Fig. 2
a
V deo Present Relay::
Yo r MD-EM1 comes eq ipped with a video present relay.
This can be connected directly to an a/v control system.
This contact is normally closed, and opens pon detection
of a video signal. See fig. 3a.
Loop Through Outputs::
Video can be fed to yo r MD-EM1 thro gh standard
composite cables or thro gh S-video cables. There are
also loop thro gh o tp ts which enable yo to connect the
so rce inp t to another device. When sing the loop
thro gh o tp ts, be s re to change the resistance switch
to "1K Ω." See fig. 3b.
4
OUT
S-VIDEOS-VIDEO RF-OUTRF-OUT
VIDEO PRESENTVIDEO PRESENT
NONO NCNC CC
VVRRLL7575OO1K1KOO
a
b
Fig. 3
3
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 4
V deo Present LED::
Yo r MD-EM1 is eq ipped with a video present LED that
will ill minate pon detection of a so rce signal.
See fig. 4a.
Adjustable Output Ga n::
Yo r MD-EM1 also has an adj stable o tp t gain, which
allows yo to adj st the overall o tp t of the nit and
balance the mod lated channel with the rest of the
system. See fig. 4b.
Adjustable Offset Mode::
Yo r MD-EM1 has an adj stable offset mode. [Use the
b tton labeled “OFFSET MODE” to switch between TV,
STD, HRC and IRC modes.] See fig. 4c.
5
VIDEO PRESENT
VIDEO
MODULATION LEVEL
VIDEO
MODULATION LEVEL OUTPUT LEVEL
35dBmV
25dBmV
UP
DOWN
OFFSET MODE
CHANNEL SELECT
IRC
HRC
STD
TV
Fig. 4
a
c
b
Programm ng::
To program a channel nto your MD-EM1::
• Ens re that the channel yo wish to mod late onto,
along with the channel directly after that, is open.
See fig. 5a.
• Press the b tton labeled "OFFSET MODE" ntil the
desired offset mode is acq ired (HRC, IRC, TV, STD).
See fig. 5b.
• Use the channel select keys marked "UP" and "DOWN"
to select the proper channel on which yo wish to
mod late. See fig. 5c.
6
VIDEO
MODULATION LEVEL
VIDEO
MODULATION LEVEL OUTPUT LEVEL
35dBmV
25dBmV
UP
DOWN
OFFSET MODE
CHANNEL SELECT
IRC
HRC
STD
TV
Fig. 5
bc
a
example req ires
channel 78 and 79
to be open
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 6
Troubleshoot ng::
No P cture::
Ens re that the video so rce is on and generating a signal.
Ens re that the TV and the mod lator are t ned to the
same channel.
Herr ngbone Interference on Modulated Channels::
Ens re that the channel that yo are mod lating to is
completely vacant. Distant UHF stations may sometimes
appear open b t will ca se interference if yo try creating
a new channel at the same freq ency.
8
Lock ng System::
Mount ng & Us ng the T2 Lock ng System::
Yo r mod lator comes with the proprietary T2 locking
system attached, and is designed to be mo nted in most
UL listed str ct red cable enclos res.
7
Fig. 6
Fig. Fig. 8
open
locked
180˚
Locate the prod ct in
the enclos re as
shown in fig. 6.
Rotate the lock 180
degrees to sec re
the nit as shown in
fig. 7 & fig. 8. (Use a
3/16" hex key or a flat
head screwdriver.)
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 8
Spec f cat ons::
Inputs::
Video: 0.8V to 2.7V Peak to Peak
Adj stable @ 75ohm
A dio: 1V Peak to Peak for
±25KHz Deviation
V deo Performance::
Differential Gain: Less than 5%, 2.2% typical
Differential Phase: Less than 5°, 1.4° typical
Signal to
Noise Ratio: Greater than 52dB
RF Output::
Offset Modes TV STD HRC IRC
Channel Ranges: 14-78 65-135 65-135 65-135
O tp t Level: Adj stable ::
20dBmV to 35dBmV typical
IM Distortion: -60dBC
Alternate Channel: -55dBC @ 12MHz
Freq ency Stability: ±5KHz max, ± 2KHz nominal
Note::
All channel ranges excl de channels 95-99.
9
FCC Conform ty::
DECLARATION OF CONFORMITY
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE,
AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE
RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION.
Installation Req irements:
FCC classifies this prod ct nder part 15 of its r les as a
“television interface device.” Systems designed sing television
interface devices have the following legal req irements:
1. The mod lated channel signal strength may not exceed
15.56dBmV at any television. Federal Reg lation
47CFR15.115(b)(1)(i).
2. If an antenna is sed in the system, the mod lated channel
signal strength may not exceed -51dBmV at the antenna
inp t port. Federal Reg lation 47CFR15.115(c)(4).
For The Installer:
The system yo design m st comply with these reg lations.
As the installer, yo are responsible. Amplifiers m st be sed
in all antenna based systems to provide necessary isolation and
comply with FCC part 15.
10
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 10
Warranty::
T2 Signal Management (T2) warrants this prod ct to be free from defects in materials and
workmanship for a period of three (3) years from the date of p rchase or T2 will repair, or at
its option, replace the defective prod ct (with a new or factory reconditioned prod ct, as T2
may determine). To obtain warranty service nder this warranty, call T2 for a ret rn material
a thorization (RMA) n mber and ret rn the defective prod ct together with a copy of the sales
receipt or other satisfactory proof of p rchase to T2 Signal Management, 63 Mall Drive,
Commack, NY 11725, Attention: C stomer Service. Please p t the RMA n mber on the
o tside of the carton. Ship all cartons freight prepaid.
This warranty does not cover damage res lting from (1) se or installation other than in strict
accordance with the man fact rer’s written instr ctions, (2) disassembly or repair by some-
one other than the man fact rer, (3) mis se, misapplication or ab se, (4) alteration,
(5) lack of reasonable care, (6) wind, ice, snow, rain, lightning, or any other extreme weather
conditions, acts of nat re, fire or any other ca se not within the reasonable control of T2.
ANY IMPLIED WARRANTY ARISING FROM THE SALE OF THE PRODUCT INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS, FOR PURPOSE, ARE LIMITED TO THE
WARRANTY STATED ABOVE. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION OF WARRANTY SET FORTH ABOVE. THIS PRODUCT IS SOLD AS IS.
T2 shall in no event, and nder no circ mstances, be liable or responsible for any conseq ential,
indirect, incidental, p nitive, direct or special damages based pon breach or warranty, breach
of contract, negligence, strict tort liability or otherwise or any other legal theory, arising directly
or indirectly from the sale, se, installation or fail re of any prod ct acq ired from T2. B yer’s
remedy is strictly limited to ret rn of the goods and repayment of the price or repair or
replacement of the non-conforming goods or parts, whichever T2 chooses.
For more information, visit www.t2signal.com.
For technical support, call 1.800.82 .5540. 84P002A
TERK and T2 are registered trademarks. The T2 logo is a trademark of TERK Technologies Corp.
T0208-T2MDEM1-OM.qxp 9/16/03 09:55 AM Page 12
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