Page 1
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PD
2011-9016-02
PRO
ception
Proception Limited,
177-187 Rutland Road
SHEFFIELD
S3 9PT
United Kingdom
Web:
http://www.proception.co.uk/
e-mail: [email protected]
Performance data given are typical unless otherwise stated. Proception Limited reserves the
right to change product designs and specifications without prior notice.
proUSM
UHF Unscreened
Masthead Preamplifier Range
2-Year Guarantee
This guarantee covers failure of your
PRO
ception product resulting from manufacturing
defect within a period of 2 years from the date of supply to the end-user. This guarantee
does not cover damage to the product caused by abuse, tampering, defective installation or
natural causes such as lightning discharge. Repair or attempted repair, other than by the
manufacturer, will render this guarantee void. This guarantee does not affect a consumers
statutory rights.
INSTALLATION INSTRUCTIONS
This range of unscreened masthead preamplifiers with traditional saddle and clamp
connections offers a choice of products, all with an excellent combination of good input
filtering, low noise figure and high output capability. These products are not suitable for
use in areas of high radiated interference.
Range features
n
Traditional saddle and clamp connection.
n
Low noise figures.
n
Inputs well-filtered below 470 MHz.
n
High output capabilities.
n
2- and 4-way preamplifiers can be powered via any output.
Application guide
Restrictions on use
These products are unscreened and are not suitable for use in areas of high radiated
electromagnetic interference. They should not be used where radio transmitting
installations such as mobile radio and mobile telephone base stations, radar installations,
amateur radio stations, etc. are known to operate nearby.
These preamplifiers should not be used in distribution systems feeding more than one
dwelling unit.
Product selection
See application example diagrams on page 2.
It is important to select an appropriate product for each application. The use of excessive
preamplifier gain is likely to lead to receiver overload problems and deterioration in
reception. Always use the lowest gain product which will achieve adequate signal levels
at the receiver(s) in a particular location.
proUSM11M
this medium gain (14 dB) preamplifier provides sufficient boost to assist
with the reception of weak signals in the great majority of domestic installations, even
with long downleads (up to around 30 metres of 100 size cable). The output from this
preamplifier may be split using a two-way passive splitter such as the
PRO
ception
proUSS12P, or by using the proPSU12F dual-output power unit, which contains a built-in
splitter.
proUSM11H
high gain (25 dB). This preamplifier is useful where exceptionally long
cable runs (up to 100 m of 100 size cable) are involved such as with a remotely
mounted antenna serving a house in a deep valley. This preamplifier may also be used
with passive distribution accessories (splitters and taps) to construct a small distribution
system to feed a number of points.
proUSM12M
2-way medium gain (2 x 12 dB)
proUSM12H
4-way high gain (2 x 22 dB)
proUSM14M
4-way medium gain (4 x 11 dB). These multi-output preamplifiers provide
popular solutions to the problem of installing multiple TV points in an older building. All
multi-way preamplifiers can be powered via any of their outputs, providing flexibility in
the location of the power unit. The proPSU12F dual-output power unit can also be used
with these preamplifiers to obtain a further output.
Notes
1. Signal handling capability is given for 5 analogue TV channels.
2. Through-power to the input is not provided (all products have a DC grounded input).
Technical data proUSM family
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