User's Manual Part 2

123
LDMOS UHF AMPLIFIER MODULE MTF0070CR0
DESCRIPTION
The MTF0070C is the RF Amplifier module of the AUTV/1500LD based on LDMOS technology. The RF
Amplifier module is composed by eight broadband amplifier boards (SCH0192A) coupled together by
means of Wilkinson combiners, driven by means another amplifier board. The module also includes the
cooling heatsink and a small Interface board (SCH0221A) which forwards power supply to the two stages,
groups the power and temperature into a single connector, more easily managed inside the transmitter. The
driver stage of the amplifier module is provided with a Gate control to inhibit the output power.
TECHNICAL CHARACTERISTICS
Frequency Range 470 - 860MHz
Output Power 1300W
Gain 23dB (±2)
Driver Stage Quiescent Current (cold) 4A (2A for each transistor to 32V)
Amplifier Stage Quiescent Current (cold) 2A (1A for each transistor to 32V)
RF Input Impedance 50Ω
RF Output Connector / Impedance 7/16” Female / 50Ω
MTF0070CR0 COMPONENT LIST
Elettronika Code Description Qty
00001 0Ω 1206 SMD RESISTOR 2
00221B 75Ω 1206 SMD RESISTOR 2
01041D 1nF 1206 SMD CERAMIC CAPACITOR 2
01400 BYPASSING CAPACITOR 13
01408 BYPASSING CAPACITOR 2
02402 7/16” FEMALE CONNECTOR 1
02512 SMA SOCKT PANEL MOUNTING 1
03017 MBR3045PT DIODE 4
03207 HSMS2802 DIODE 2
08502 RG 316 50Ω CABLE 3.00
08527 HF-85 ENDIFORM CABLE 0.20
PN0998A PN0998AR1 BIAS ADDER PCB 2
PN1091A PN1091AR3 UHF DIRECTIONAL COUPLER PCB 1
SCH0192AR0 200W LDMOS UHF AMPLIFIER MODULE 9
SCH0221AR0 AMPLIFIER INTERFACE BOARD 1
SCH0248AR0 8 INPUTS WILKINSON PCB 1
SCH0249AR0 4 WAY WILKINSON PCB 1
SCH0250AR0 4 WAY WILKINSON PCB 1
SCH0251AR0 2 WAY WILKINSON PCB 1
SCH0252AR0 UHF INPUT COUPLER 1