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mistral
Head amplifiers
Multi band head antenna amplifiers
2x112 code 0246
2x112
Application : Separate head antenna amplifier for VHF and
1 input : FM Ch2-4,
2 input : VHF 5-12 S11-S20,
3 input ( wide ) : UHF S21-41 21-69,
4 input ( narrow ) : UHF 21-69
Amplification : VHF amplifier 8- 28 dB, UHF amplifier 12 - 34dB
Output level : 2x112 dB/ìV in two outputs
Input voltage : Linear power supply 210VAC -250VAC / 12.8VDC
Channel reject filter : -10 dB at 935 MHz
Led Indications : High intermodulation VHF, High intermodulation UHF
dB
40
30
20
10
0
FM
0
VH F UHF1
UHF2
500
0246
1000 MHz
Antenna Systems
UHF for low intermodulations
Linear 12.8V
IN FM C2-4
IN VHF C5-12,
s11-s20
IN UHF
s21-s41
C21-69
IN UHF
21-69
0246
intermodulation
indication for
VHF
OUT 1
intermodulation
indication for
UHF
2×112 Log
dB
40
30
20
2x112 Log code 0250
Application : Separate head antenna amplifier for VHF and
UHF for low intermodulations special for
VHF-UHF Log periodic antennas
1 input : FM Ch2-4,
2 input : S11 - S 41
3 input : VHF Ch 5-12 + Ch21-69,
Amplification : VHF amplifier 8- 28 dB, UHF amplifier 12 - 34dB
Output level : 2x112 dB/ìV in two outputs
Input voltage : Linear power supply 210VAC -250VAC / 12.8VDC
Channel reject filter : -10 dB at 935 MHz
Led Indications : High intermodulation VHF, High intermodulation UHF
0250
Linear 12.8V
One input
S
VHF
FM
10
0
0
UHF
500
0250
1000 MHz
IN FM C2-4
S11-S41
IN VHF- UHF
C5 - 12
C21-69
intermodulation
indication for
VHF
OUT 1
Intermodulation
indication for
UHF
21
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mistral
Head amplifiers
Antenna Systems
Multi band head antenna amplifiers
Application of installing the central antenna amplifier 2x112, with TV - FM antennas and modulator for a
satellite or digital channels and signal output in 5 - 10 sockets
Installation
Depending on the reception signal level in the specific area, specific accessories
might be needed. Refer to the following table:
Reception signal level Amplifier accessories needed
Low 30-50 dB/ìV Line preamplifier 32 dB
Average 50-70 dB/ìV Line preamplifier 22 dB
Good 70-80 dB/ìV Nothing needed
Excellent 80-90 dB/ìV Attenuators on the inputs 0 - 20 dB.
FM Antenna
VHF Antenna
Install the amplifier in secure and well ventilated area
Adjust the amplifier by turning clockwise the adjustment
knobs for the best possible amplification, without having
intermodulation (interaction between the channels due to
overdrive).
Input voltage
indication LED
Install
multichannel
UHF antennas
Satellite dish with
receiver and S21 - S40
channel modulator
UHF Antenna
Indication of increasing
intermodulation of the
FM-VHF amplifier
Indication of increasing
intermodulation of the
UHF amplifier
22
2x112
For the best possible amplification - without having intermodulation (interaction between channels due to overdrive),
adjust the amplifier by turing tha adjustment knobs clockwise.
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