This ChannelPlus 3400 Series video distribution system contains digitally-tuned
video modulators that convert any baseband video and audio signal to a user-
selected UHF, or Ultraband CATVchannel. An internal quartz crystal reference
oscillator and PLL circuitry ensure drift-free performance. The user selects the
outputfrequency (channel) using the "select" button to choose which modulator and
the"program" button to enter the number of the desired channel. AnyTV connected
to the output via coax can receive the signals, when the TV is tuned to the proper
channel.
Modelsavailable:
3425 2channel system
3445 4channel system
Model 3245/3445 - RF section
Connectionfor
ModulatorSection
(Requirescoax cable,
RG-6recommended)
Expansioninput
forother modulators
(25dBmVmax)
Outputsfor TVs (8)
Inputfor cable or antenna
2
Ant/
CATV
INPUT
Forusewith model
2133 IR targets
INPUTS
MODULATORS
AB+Pwr
OUTPUTS
ToTVs
distributionpanel
}
CHC CHD
VIDEO AUDIOL AUDIOR
CHA CHB
VIDEO AUDIOL AUDIOR
OUTPUT
600mA
15VDC
POWER
®
model3445four channel integrated modulator and distribution system
pllfrequencycontrol
D
C
BA
program
select
Controls and Connections - Model3445 shown
RFoutput
Selectbutton chooses
themodulator.
Program button enters
thechannel number
ModulatorLEDs show which
modulatoris selected
Videoinputs
Powersupply
15VDC600mA
Audioinputs: Right and Left
Terminatingjumpers (remove for hi-Z)
RemovejumperforHi-Z
(Seemanual)
ABCD
C
ADB
Option:
Toconnect the video and audio to a local monitor, use RCA type
‘Y’adaptors and remove the ’LOOP’ jumper for this channel.
VIDEO
AUDIOL
AUDIOR
CableHRC and IRC considerations
Mostcable services use IRC frequency assignments. This is the default for the ChannelPlus
3 . However, if the cable service uses HRC or the TV appears to search
forthe "house channels," the modulator can be reprogrammed to use HRC assignments by
enteringthe number “ 98”. Setto IRC by entering a “99”. Bothof these settings are only used
forsetting HRC/IRC. :This setting can be entered on any modulator channel, A, B, C, or
D,and affects all channel assignments for that unit. Cablechannels must either be IRCor
HRC.
400series’ modulators
Note
all
all
Changing modulation standards
Common questions
7
Specifications: typical @ 25 C ± 5 C
OO
3400 Series
RFoutput
Powersupply
(ULlisted)
Physical
performance
Video
Inputs
65-125
(excluding95-99)
14-64
channelranges
modelnumber
signal/noise 55dB
-60dBC
0dB
<9watts
+15dBmV (75dBµV)
105-125VAC
-45dBC@ 12MHz
600mA
15VDC
differentialphase <4º
differentialgain
L& R inputs combined for monaural
4%
audio
video
UHF
350-079
CATVstandard
1Vp-p@75
1Vrms @ 47K
outputlevel
inputpower
IMdistortion
powerconsumption
alternatechannel
GainCATV/Ant to output
outputvoltage
outputcurrent
1lbs 2 oz (0.5kg)
RFsection 0.9x6.3x2.5“ (2.4x16x6.4cm)
2lbs 10 oz (1.19kg)
modulatorsection 1.5x7.9x5.5“ (3.8x20.0x14.1cm)
Canan amplifier be used on an output to drive signals over longer cable paths?
Can a splitter be used on one or more outputs in order to add more TVs?
…No.
TheIR remote control feature will be defeated if an external amplifier is used.
… No. The
model3425/3445 Multi-room Video Distribution System is a pre-engineered system providing
optimumsignal levels to each TV for clear, crisp picture quality. Each time a splitter is added,
there is lowering of signal level called insertion loss. Insertion losses upset system
performance. Additionally, the IR remote control feature will be defeated.
Mountinghole template
Tohang with connectors on the side
Tohang with connectors on the bottom or top