PROception PROAMP310X Instruction Manual page 3

Technical Data proAMP310X
RF characteristics
Signal frequency range
Forward gain
Return path gain
Noise figure, typical
Output capability
Maximum
Recommended
input signal levels Minimum
Isolation between outputs
3
Input filter
rejection
for the frequencies (f) stated
f ≤ 72 MHz, f ≥ 150 MHz
Power requirements
DC power: voltage limits
Amplifier only
Current loading
Full system
110 mA (incl. 30 mA preamplifier load)
UHF preamp: 5V approx. at 30 mA
7
s
External power output
General characteristics
Signal connector type Type-F (IEC 60169-24)
Operating temperature range . -10 .. +40°C
Notes
1. UHF signal handling capability is given for 5 analogue TV channels plus up to 6 DTT
multiplexes at ≤ -14 dB relative level.
2. The first (higher) figure is for analogue signals and the second (lower) is for digital (16– or
64-QAM).
3. Rejection figures are given relative to the nominal passband gain.
4. Absolute minimum voltage, measured to the bottom of the ripple present.
5. Highest recommended mean voltage for operation over the full temperature range.
6. Eye load should be restricted to 80 mA or less when using PROPSU112X power unit (see
text).
7. Both UHF preamp and IR eye power outputs have fold-back short-circuit protection, but not
overload protection. It is the installer's responsibility to ensure that the stated current
ratings are not exceeded.
Certain features of this amplifier are the subject of UK patent application GB 2425443.
FM ANT input DAB ANT input UHF input
87.5 .. 108 MHz 210.5 .. 230 MHz 470 .. 862 MHz
1.5 dB 4 dB
- - 3 dB (Mode 2 only)
4 dB 3.5 dB
- - 82 dBμV
70 dBμV 70 dBμV 78/63 dBμ
50 dBμV 30 dBμV 58/43 dBμ
≥ 30 dB ≥ 27 dB ≥ 24 dB
≥ 18 dB, ≥ 22 dB, f ≤ 145
MHz, f ≥ 305 MHz f ≤ 400 MHz
Mode 1 Mode 2
8.5 .. 18 V 10.5 .. 18 V
80 mA 120 mA
220 mA (incl. 100 mA total 'eye' load)
IR 'eye': 9V approx. at 10 mA max.
max. (x10)
Mode 2 return-path mode (orange LED): this mode is applicable when using RF OUT-2 of a Sky
satellite receiver, PVR or a similar device. This will then allow remote infrared receiver eyes (such as
the PROception PROSAT1EYE Mk 2) to communicate with the Sky box, so that the Sky receiver can
be controlled from a remote viewing location.
Powering
4.5 dB
Mode 2 is automatically enabled when the amplifier detects the presence of 9V (or higher) DC at its
UHF input (see the following section for further details). In this mode the LED indictor changes from
2.5 dB
green to orange and a voltage (approx. 9 V DC) is present at each output for powering a remote
infrared receiver.
2
V
Infrared receiver power is individually short-circuit protected, so that a DC short at any output will
2
not affect operation of remote control via other outputs.
V
Fig.2(a) shows a typical Mode 2 application with power provided by a PROPSU112X power unit
connected in the UHF return feed from the Sky receiver.
≥ 26 dB,
Fig.2(b) shows a similar installation to Fig.2(a), except that power is provided by an AC/DC mains
power adaptor adjacent to the amplifier.
Magic Infra-Red Eye Count
When using the remote powering option with the PROPSU112X the total number of infrared 'eyes'
on the system may need to be restricted. The PROPSU112X is rated to supply a maximum of 200mA
and approximately 120mA is drawn by the amplifier itself. Thus the total 'eye load' is limited to
80mA. This means that a maximum of eight 'industry-standard eyes' (each consuming about 10mA)
may be connected to the amplifier outputs. This restriction is removed if the PROception
PROSAT1EYE Mk 2 eye is used, since this consumes less than 5mA. Up to 10 eyes may be connected
without restriction when using the PROPSA125 AC/DC mains power adaptor.
Fig.2(a) - example Mode 2 application with remote power unit.
Fig.2(a) - example Mode 2 application with remote power unit.