NetMedia MM73 - Manual (Page 2)

NM-MM73
NetMedia, Inc., 10940 N. Stallard Place, Tucson, Arizona 85737 (520) 544-4567 Fax: (520) 544-0800 Email: [email protected] www.netmedia.com
MAN-MM73 REV0708A
Figure 3 - Connecting the modulator to a satellite system and distributing to multiple televisions.
Figure 2 - Connecting the modulator to an antenna or cable service and distributing to multiple televisions.
Figure 1 - Setting the modulated channel with the switches. Valid channels are UHF 14-69, CABLE 70-94, 100-125.
NM-MM73
80 40 20 10 8 4 2 1
ON
OFF
CABLE Channel 125
Add numbers
switched ON
to set channel.
80 40 20 10 8 4 2 1
ON
OFF
UHF Channel 25
Installation Procedures:
1. Remove the End Plate from the modulator assembly and set each channel with the switches as shown in
Figure 1. Choose unused channels that match the tuning mode of the televisions. With antenna tuning,
choose UHF channels from 14-69. With cable tuning, choose CABLE channels from 70-94 or 100-125. There
must be at least one blank channel on either side of each modulated channel to separate it from any other
broadcast, cable, or modulated source. When combining with cable service, be aware that digital data
typically interferes with channels 80-117, even when not subscribed to digital services. If no channels are
available then a filter such as NetMedia’s CNF7080 (ch. 70-80) may be necessary.
2. Connect a video source to the modulator’s RCA Video Input Connector 1. Adapter’s such as BNC to RCA may
be used as necessary. If audio is available, connect it to the RCA jacks of a Dual RCA Audio Cable. Insert the
Audio Cable’s 3.5mm plug into the modulator’s Audio Input Connector 1. Repeat for connectors 2 and 3.
3. Connect a coax cable from the modulator’s F connector to the coax from a television or distribution system.
Connect the 12V DC 300mA power supply to an AC outlet. The modulator pictures are now available on the
programmed TV channels.
Main cable or
Antenna
Television
Television
Distribution
Panel
or Splitter
Splitter/
Combiner
Optional Ch. 70-80 Filter (NM-CNF7080)
when there are no clear cable channels.
Modulator
Dual LNB
Satellite
Satellite
Multiswitch
w/Ant input
Satellite
Diplexer
Television
Satellite Receiver
Sat In
Ant In Modulator