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Chapter 8 - Determining Intercom Needs 117
TW5W Splitter
This rugged unit allows up to five BP-325’s to connect to a central location. It can be used
outside the truck and placed directly on the ground. Using it, only one microphone cable
needs to be connected from the truck to the cameramen, which is useful when the shoot is
several hundred feet away. In the small studio scenario, the TW5W can be replaced with
the TW7W 1x7 splitter mounted in the rack.
IFB325 Talent User Station
The IFB325 talent belt pack is worn on the talent’s belt or can be set on the ground if
desired. It has a volume control, a XLR3 line jack, and an earset jack. A substitute for the
IFB325 is the TT44 and TR34 wireless IFB transmitter/receiver to provide more freedom
for the reporter, or in the case of the studio, the weather position.
BP325 Programmable Belt Pack
Used by the cameramen (or floor managers in the small studio), this unit features
microphone kill, call light, and has two conference channels. It has provision for both 4
and 5-pin dynamic binaural-headset and an additional carbon headset. A substitute can be
the BP318 single channel belt pack.
Headsets and Earsets (not shown)
The PH1-R Single Muff Headset offers moderate outside noise attenuation, and allows
ENG camera operators to use a carry-cam more efficiently. The lightweight version is the
PH-88R for small studio use. If binaural operation is desired for the director, the PH3-R5
Dual Muff Headset and PH44-R5 lightweight headset can be used. They offer the ability to
maintain separate conference channels in each ear. The PH44-R5 may also be used with
BP325 belt pack for positions such as a crane operator, who needs to communicate with
the director, the cameraman, and hear program audio, all with separate volume controls.
The talent earset is the model 2234, which is on-camera invisible.
Medium Sized Studio and Mobile Intercom
In many ways, the medium sized studio intercom is the most difficult to specify, for it is
here we reach a thin dividing line: the extended two-wire system sometimes makes the
most sense for such an application, until we run out fixed assets (i.e. quantities of forms of
communications). Also, when we have more than five multi-channel, two-wire stations
such as the RTS
™
Model 803 or 810-CL, we should think about the four-wire matrix as a
sensible alternative