Lem Elettronica DSP35-4G User manual

WARRANTY YEARS
DIGITAL SIGNAL PROCESSOR
DSP35-4G
LEM
GUI
AUTO
TUNING
Firmware rel. 1.5
Hardware rel. 5.0
24 Digits LCD display
5 Inputs
Auto-Tuning function
SAW filters against Lte 4G interferences
A.C.G. in each filter
32 high selectivity digital filters
DC powering from plug or coaxial output
Zamak chassis for high screening protection
Programmable compact multi-input multiband head-
end to digitally filter, convert and equalize DVB-T / T2
channels. The built-in amplifier with adjustable output
allows the use in small or medium multi dwelling units.
MODEL DSP35-4G
NUMBER OF INPUTS 5 1 FM; 1 BIII/DAB; 3 UHF
INPUTS FREQUENCY RANGE MHz FM (40... 108)
BIII (170... 230) / DAB (170... 240)
UHF (470... 790)
LTE PROTECTION LTE790
SINGLE CHANNEL FILTERS 32
NUMBER OF CHANNEL PER FILTERS 1... 2
INPUT LEVEL RANGE dBV FM 35... 90 - BIII/DAB 40... 110 - UHF... 45... 100
BI/FM INPUT ATTENUATOR dB 0/-12/-24
BIII/DAB INPUT AMPLIFIER dB 0/+20 (OFF/ON)
UHF INPUT AMPLIFIER 0/+10 (OFF/ON)
BIII/DAB - UHF INPUTS A.C.G. RANGE dB 40 dB
DIGITAL FILTERS SELECTIVITY dB 35 @1MHz
VHF GAIN dB 50
UHF GAIN dB 60
OUTPUT LEVEL RANGE dBV 93... 113
BIII/DAB ADJUSTABLE SLOPE dB 0... -10
UHF ADJUSTABLE SLOPE dB 0... -5
MAX VHF-UHF OUTPUT LEVEL dBV120(IM3 DIN 45004B - 60 dBc)
MAX OUTPUT LEVEL WITH 6 MUX dBV113
RETURN LOSS IN/OUT dB >12
TEST OUTPUT 1 (-30 dB)
USB CONNECTOR USB 1.0 / 2.0 Type B
REMOTE POWER SUPPLY VHF-UHF 12V / 24V 100 mA
MAXIMUM CONSUMPTION 15Vcc 0,53A - 8W
OPERATING TEMPERATURE °C -5... 50
DIMENSIONS mm 193 x 148 x 36

The equipment is designed for indoor use only
The equipment complies with the CE requirements
Equipment grounding terminal
The equipment is compliant with RoHS 2011/65EU
This symbol indicates that the equipment complies with the safety
requirements for class II equipment
Dispose according to local authorities recycling processes
CAUTION To avoid the risk of electric shock, do not open the equipment.
LEM
GUI
AUTO
TUNING
High rejection SAW filters for optimal protection against Lte 4G
interferences
In addition to the easy to use built-in LCD display, programming
applications are available for PC Windows and Android devices
Self programming Auto-tuning function to scan and detect DVB-T/T2
signals from the VHF/UHF inputs and allocate a single digital filter
for each transponder
DESCRIPTION OF SYMBOLS AND ELECTRICAL SAFETY
ICONS DESCRIPTION

1. Do not expose the amplifier to extreme temperatures.
2. Place the amplifier in a dry and well-aired location.
3. Install the unit on a vertical wall, or in a waterproof cabinet with a
minimum IP55 rating, and fix it safely using the provided fixing plugs.
4. Connect the power adapter cord to a detachable power supply
socket.
Safety instructions
IMPORTANT!
Use only the power supplier YS25-1501250 provided with the amplifier.
The use of non-original power suppliers determines the non-compliance
of the product and can cause malfunctions and void the warranty.
30 cm 30 cm
30 cm
30 cm
100-240Vac

Standard Connections Schematic
1 Connect an earth wire to grounding clamp
2 Connect the TV aerial(s) to the amplifier’s inputs
3 Connect the MATV output and terminate the unused inputs with 75Ω
loads
4 Connect the power supplier unit to the DSP35-4G and then connect the
power supplier to mains plug
Installation and start-up
Lte790/4G
SAW Filters
UHF
BIII
DAB UHF UHF
Switching
Power Supplier
YS25-1501250
MATV Output
Test - 30dB
FM Input
USB Port

1 Connect an earth wire to grounding clamp
2 Connect the TV aerial(s) to the amplifier’s inputs
3 Connect the MATV output and terminate the unused inputs with 75Ω
loads
4 Connect the power supplier unit to the coaxial DC injector INS02* and then
connect the power supplier to mains plug
*DC Coaxial Injector not included
Installation and start-up
UHF
BIII
DAB UHF UHF
MATV
Coaxial DC
Injector INS02
Lte790/4G
SAW Filters
Test - 30dB
FM Input
USB Port
Switching
Power Supplier
YS25-1501250
Connections Schematic with Remote PSU

Programming via display
1. Press to activate the display
2. Press for three seconds to enter the
programming menu
OUTPUT
>LEV:110dBuV
Confirmation
Key
Menu browsing
keys
Display LDC 2 x 12
Pointer to
scroll figure
s
Function
Selector
Note: the display will go out after 3 minutes if inactive, but the menu will remain open
on the last selected function. Press any key to continue.
Firmware rel. 1.5
Hardware rel. 5.0
4G

To begin the automatic programming, AUTO-
TUNING, place the pointer --- below AUTO. Press
to proceed.
Automatic channel scan and memorization
Setting higher output levels than the one
obtained through the AUTO-TUNING could
reduce the quality of the received signals.
TUNING
AUTO MAN
TUNING
> > >
OUTPUT
>LEV:110dBuV
>DC: 12V
DC V1: OFF
DC U2: OFF
>DC U3: ON
>THR: 55dBuV
START
If necessary set up the THR (minimum thresold)
level or leave the default 55dBμV.
THR: 55dBuV
>START
Press again to confirm the scanning and tuning.
If the number of the memorized MUX is lower
than expected try reducing the THR level and
restart the AUTO-TUNING procedure.
To stop the AUTO-TUNING procedure press
for 5 seconds.
To begin the AUTO-TUNING procedure connect the antenna(s) to the DSP35-4G
inputs, then follow the operations described below.
The amplifier DSP35-4G will start scanning from the
input [1] for BIII band and the UHF inputs [2], [3] and
[4] in sequence. The scanning/tuning procedure
require around two minutes.
Before the MUX scanning, the DSP35-4G requires
the selection of the inputs voltage 12V or 24V and
the activation, if required, of the remote powering
for each input. The remote powering is required in
case of active antennas or external pre-amplifiers.
When the AUTO-TUNING procedure is completed
the display will show the maximum output level
optimized for the number of MUX automatically
found and saved. Press to confirm and complete
the procedure. To change the output level press the
keysthen press to confirm.

TUNING
AUTO MAN
Position the pointer --- on MAN to start the manual
programming though thekey and press to
continue.
INPUT FM/BI
Manual programming
Press to enter the menu to set the FM input
parameters.
Position the function selector > on ATTN and press
to activate the pointer ---, select the desired
output level through the keys and press to
confirm.
FM/BI INPUT
FM/BI ATTENUATOR
Adjustable 0/12/24dB
>ATTN: 12dB
INPUT FM/BI
INPUT VHF 1 To set the INPUT VHF 1 parameters press to
enter the menu.
INPUT [1] VHF
INPUT 1 VHF
Processable channels
Input: E5... E13 - DAB
Output: E5... 69
Press the keys  at the same time to go
back to the main menu from anywhere in the
INPUT menu.
>PREAMP: OFF
DC : OFF
INPUT PREAMPLIFIER
OFF= 0dB
ON= 20dB
Position the function selector > on PREAMP
and press to activate the pointer ---, scroll the
keysend select ON to enable the preamplifier
or OFF to disable it and press to confirm.
>DC : OFF
INPUT VHF 1
REMOTE POWER SUPPLY
Position the function selector > on DC and press 
select ON to enable the remote power supply from
INPUT 1 VHF. Press to confirm.
The remote power supply is set on 12Volt. It can be changed
to 24Volt in the ADVANCED menu.

Pressto position the function selector > on
ADD 1 CH and press .
>ADD 1 CH
PREAMP: ON
To add a filter for two channels with two adjacent
MUX pressand select ADD 2 CH.Press to
confirm. Select the first channel with thekeys.
The second channel will automatically appear in se-
cond position. Press to confirm.
> 5-> 5 L 65
PREAMP: ON
>ADD 2 CH
ADD 1 CH
> 9<>10 L 65
PREAMP: ON
CH DELETED Position the function selectoron MUX filtering or
MUX conversion usingthen keep pressed 
for five seconds.
To activate the filtering function on a single MUX
set the desired channel through thekeys, then
press twice to confirm.
> 5-> 5 L 65
PREAMP: ON
To activate the filtering and conversion function on
a single MUX set the desired input channel through
thekeys and press to confirm. Select the
output channel required for the conversion through
thekeys then press to confirm.
MUX CONVERSION
SINGLE MUX FILTERING
TWO MUX FILTERING
The L figure shows the input level of the selected MUX in
dBμV.
DELETE FILTER
> 5-> 5 L 65
PREAMP: ON
> 5-> 8 L 65
PREAMP: ON
Output conversions up to the UHF channel 69
are permitted.
DAB FILTER
PREAMP: ON
> VHF-DAB
To activate the single 65MHz DAB filter press until
the figure VHF-DAB is shawn, then press to confirm.
FILTERS OVERLAPPING
>10<> 8*L 70
8<> 8*L 65 The selection of two or more output filters with the
same frequency is allowed but marked with *

INPUT UHF 2 To set the INPUT 2 UHF parameters, press to enter
the menu.
The same procedures described for input 1 apply for all
settings.
INPUT U 3
INPUT U 4
OUTPUT Pressto select the menu OUTPUT and press 
to confirm and check the selected output level.
OUTPUT
>LEV:110dBuV
To adjust the output level, press and change the
figure where the pointer is positioned to the required
level. Press to confirm.
INPUT [2] UHF
INPUT [3] UHF
OUTPUT LEVEL SELECTION
INPUT [4] UHF
Adjustable from 93 to 113dBμV
LEV:110dBuV
>SLP: 5dB
To adjust the UHF slope select SLP and press ⏎,
pressto select the required value and press ⏎
to confirm.
UHF SLOPE
Adjustable from 0 to 5dB
SLP: 5dB
>VHF:- 10dB
To adjust the VHF gain select VHF and press ⏎,
pressto select the required value and press ⏎
to confirm.
VHF SLOPE
Adjustable from 0 to -10dB
INPUT 2 UHF
Processable channels
Input: 21... 60
Output: E5... 69
INPUT 3 UHF
Processable channels
Input: 21... 60
Output: E5... 69
INPUT 4 UHF
Processable channels
Input: 21... 60
Output: E5... 69
To set the INPUT 4 UHF parameters, press to enter
the menu.
The same procedures described for input 1 apply for all
settings.
To set the INPUT 3 UHF parameters, press to enter
the menu.
The same procedures described for input 1 apply for all
settings.