Elettronika S r l TXUP1500 1300 Watt Analog TV Broadcast Transmitter User Manual APT144A AUTV 1500LD Rev0 Date081104

Elettronika S.r.l. 1300 Watt Analog TV Broadcast Transmitter APT144A AUTV 1500LD Rev0 Date081104

Amplifier User manual Part 2

33_______________________________________________________________________________________________Section 4 - DiagramContents:- Cable diagram- MTF0070CR0 RF Amplifier module Cable Diagram- MTF0070CR0 RF Amplifier module Connections Diagram- MTF0070CR0 Amplifier module - Component list- SCH0192AR0 (200W UHF LDMOS Amplifier module)- SCH0223AR1 (Control board and display)- SCH0221AR1 (Amplifier interface)- SCH0265AR0 (Mains distribution board)- SCH0288AR1 (Interface board)- E0012 (SP500-27-DI Switching power supply)
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37Part Name Code Description Qty00001 0W 1206 SMD RESISTOR 201041D 1nF 1206 2% SMD CAPACITOR 200221B 75W 1206 1% SMD RESISTOR 203207 HSMS-2802*L31 DIODE 2SCH0192AR0 200W UHF LDMOS AMPLIFIER MODULE 9SCH0221AR0 AMPLIFIER INTERFACE 1SCH0248AR0 8 WAY WILKINSON 1SCH0249AR0 4 WAY WILKINSON Dx 1SCH0250AR0 4 WAY WILKINSON Sx 1SCH0251AR0 2 WAY WILKINSON 1SCH0252AR0 1500W UHF INPUT COUPLER 1PN1091A C.S. PN1091AR3 OUTPUT DIRECTIONAL COUPLER 102402 7/16 FEMALE CONNECTOR cod. 0142 102512 J01151A0531 SMA SOCKET WITHOUT BAT. 101400 2499-003-X5U0-102M FEED-THROUGH CAPACITOR 1301408 5000PF FEED-THROUGH CAPACITOR 2DET0726 DET0726R2 SIDE x 1500W UHF AMP. MOD. 2DET0727 DET0727R1 INTERNAL FRONT SIDE x AMP. MOD. 1DET0728 DET0728R4 INTERNAL SIDE x AMP. MOD. 2DET0729 DET0729R2 FRONT SIDE x AMP. MOD. 1DET0730 DET0730R2 REAR SIDE x AMP. MOD. 1DET0732 DET0732R1 CONNECTIONS SUPPORT BOARD 1DET0734 DET0734R0 COVER x AMPLIFIER MODULE P. 2634 1DET0736 DET0736R6 HEATSINK x AMPLIFIER MODULE 1DET0807 DET0807R3 SCREEN DIR. COUPLER MODULE 1DET0810 DET0810R0 PART. x DIRECTIONAL COUPLER 1DET0811 DET0811R1 COVER x DIRECTIONAL COUPLER 1DET0812 DET0812R1 TEFLON RING x DIRECTIONAL COUPLER 1DET0819 DET0819R0 SPESS. x INPUT DIR. COUPLER 1DET0828 DET0828R0 COVER x AMPLIFIER MODULE P. 2644 1DET0839 DET0839R2 DIRECTIONAL COUPLER 108502 RG316 50W CABLE 3,0008527 HF-85 ENDIFORM CABLE 0,2003017 MBR3045PT DIODE 4PN0998A PN998AR1 POWER SUPPLY ADDED PCB 2Component list MTF0070CR0 Amplifier module
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39Part Name Code Description Qty05553B KIT MANIGLIE 5-6U cod. 235.013 2V0962 MORSETTIERA/GIUNZIONE ELECO E806 2V0760 TAPPI NERI 0 9.5 PLASTICA DP-375 1SCH0223AR1 CONTROL BOARD AND DISPLAY 1SCH0265AR0 MAINS DISTRIBUTION BOARD 1MTF0070CR0 RF AMPLIFIER MODULE 109419 C.S. PN419/A SUPPOR. SENSORE TEMPER. 1PN1114A C.S. PN1114AR1 SCHEDA CABL. VENT. x 1kW III 107925 PROTEZIONE IN GOMMA PVC PG 075 107515C INTER. AUTOM. 4P*16A 4.5KA 2 mod. GW 90087 107524A INTERR. NERI I3910 107541 PORTAFUS. 10A PANN. cod. P1820 302830 PRESA VDE 10A cod. PX675 A63 102893 MORSETTIERA ESTRA. 3VIE MAS. KSC 3 302894 MORSETTIERA ESTRA. 3 VIE FEM. KB 3 302695 CONNETTORE DB9F x CAVO IU008059 302699 CONNETTORE cod. IDS10FSR1 FEMM. 10 VIE 902700 CONNETTORE cod. IDS16FSR1 FEM. 16 VIE 102228 GE 15145 D/60 NF A VITONE 102502 J01150A0041 SMA x RG58/c 102876 PRESA VOLANTE ILME 16A PENTAPOLARE 4MT 102877 SPINA A PANNELLO ILME 16A 5P 35cm 107605A COND. 2uF 207605B VENTOLA D2E097-BI56-48 207605F GRIGLIA 09485-2-4039 401041 1nF COND. CERAMICO 50V 200664 SENSORE TERMICO LM 35DT 1FUS1A FUSIBILI 1A 5x20 RITARDATI ST520210 1FUS3A FUSIB. 3.15A 5x20 RITAR. ST520231 1FUS5A FUSIBILI 5A 5x20 RITARDATI ST520250 1CON0171 CON0171R5 SOST. VENT. 1kW LDM. PH. ZN P.2614 1CON0178 CON0178R4 POST. 1500W LDMOS UHF ZN 1DET0516 DET0516R0 SUPPORTO PRESE ZN P.2642 1DET0772 DET0772R0 BARRETTA FISSAGGIO VENTOLE 2Z0021 TONDO IN OTTONE x INT. MAGNET. TAV. 635/A 2Z0081 SUPPORTO GUIDA DIN INT. MAG. 1Z0673 TAV. 1199 CHIUS. CONT. PROF. 775 ZN P.2366 2E0012 SP-500-27 DE2 SWITCHING POWER SUPPLY 8PAN0074 PAN0074AR2 PANN. 6U AMPLIFICATORE LDMOS 108503 CABLE RG303 50W TEFLON 1,20DET0575 DET0575R1 BARRA FISSAGGIO ALIM. SP-500 8SCH0288AR2 INTERFACE BOARD 1CON0237 CON0237R2 LAT. SX 1500W UHF MW P.2743 ZN 1CON0238 CON0238R1 LAT. DX 1500W UHF MW P.2744 ZN 1DET0996 DET0996R0 BARRA FISS. SCHEDA DISTR. RETE 1DET0995 DET0995R0 BARRA FISSAGGIO ALIM. SP-500 1Component list APT144A - AUTV/1500LD
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41200W UHF LDMOS AMPLIFIER MODULE SCH0192AR0DESCRIPTIONThe RF module is an integrated TV linear amplifier designed for UHF band, this module employs push-pullLDMOS technology in order to achieve very good efficiency, high linearity and reliability.LDMOS transistors operate in AB class. It is a wideband amplifier over the full frequency, no adjustment isrequired for the channel change. The board includes RF section amplifier, bias circuit, protection circuit andmatching networks. A silver plated copper plate is brazed with PCB in order to obtain low thermal resistance.Providing a minimum of 200W Pk sync linear power, this module is the perfect amplifier for any broadbandUHF power transmitter.TECHNICAL CHARACTERISTICSOutput power 300W maxInput power 15W maxFrequency 470 - 860MHzGain > 13dBLDMOS Power supply 32V ±2%LDMOS Bias current @+32V Vdc 2ARF Input impedance 50WRF Output impedance 50WInput / Output return loss > = 15dBDrain efficiency 47% @ 250WStorage temperature range -50° to +150°CDimensions (LxWxH) 165x95x29mm
42CALIBRATION PROCEDURE- Technical characteristicsPower supply voltage 32V (± 2%)Polarisation current 1.0 cold for each device (2A total), ± 0.1AGain for low signal Not less than 13dB in the 470-860MHz band (± 1dB)Compare to the typical curve eclosed- Adjustment procedurePolarisation current calibration 32V stabilised power supply10A amperometerGain curve Network analyser- Adjustment points descriptionR7-R8 (Trimmers) Adjust the current absorbed in stand-by (1.0A per device)Middle frequency 660MHz, span 500MHz, 2dB/div., reference to the arrow- Curve response graphic
43- Calibration stepsSTEP 1. Close the input and the output of the module by connecting them to a 50WWWWW dummy loadand connect the spectrum analyser through a directive sample, in order to look for self-oscillation of themodule, if any (anyway the module has been designed so that it would not self-oscillate even if totally de-coupled, without any input or output load).STEP 2. Check the voltages of the polarisation circuits without assembling the transistors first:connect the 32V power supply to the proper turret by means of a fastening screw, then give power and checkdata:- the stabilised voltage on the zener diodes DZ1 and DZ2 is about 15V compared to the ground;- the stabilised voltage on the zener diodes DZ3 and DZ4 is about 6.8V compared to the ground;- the voltage on the pads to which the gates of the LDMOS transistors will be soldered (R23 and R24resistors side) changes from 0V to a maximum value of about 6V when moving the relevant trimmer (R7-R8).STEP 3. Check the work of the protections.- Set both trimmers so that there is a value of about 4.5V on the pads of the gates;- solder some wire to the pad between the two LEDs, next to the serigraphy of the input hybrid H1;- in order to check the work of the protections aboard, a power of about 4V has to be supplied to the wire,for example by touching with it the reophore of C23 or C24 which is not connected to ground; the two redLEDs will immediately light up and the two RF transistors will be switched off at the same time: the polarisationcurrent (2A) will decrease to 0 and of course the gain curve displayed by the spectrum analyser will decrease;- after this it is important to restore the position of the two trimmers for the minimum voltage! Thendisconnect the 32V power supply.STEP 4. Fastening of the LDMOS transistors: after properly cleaning the plate surface, smear a thinlayer of silicone fat on the lower side of the flange of the MOSFETs, fasten them to the heat sink and solderthe gate first, then the drain. Solder the two 13pF (ATC) chip capacitors and above them the two 1-5pFSolder a wire
44capacitive trimmers, between the two pair of gates, as shown by the mounting plan.STEP5. Connect serially a c.c. amperometer to the power supply, with scale starting from more than 5A(i.e. 10A).STEP 6. Power the module and check the MOSFET is not absorbing current; this means that the deviceis integral and working correctly.STEP 7. Slowly turn the R7 trimmer until the MOSFET absorbs 1A, always checking that there are noself-oscillation; under this conditions it is possible to check by means of a digital tester that the voltage on thegate is about 5.2-5.4V.STEP 8. Repeat the previous step for the other section of the module, this time turnign R8 and checkingthat the indication of the current on the amperometer increases to 2A total (which includes the current of theother device left on).STEP 9. Check the response curve of the module by means of the network analyser.STEP 10. Check the response curve for low signal with centre 660MHz and span 500MHz, 2dB/div.STEP 11. The curve should be similar to the one enclosed, with a tolerance of ± 0.5dB. To obtain this, acton the four trimmers C41-C41a and C42-C42a with the proper calibrator, inorder to flatten the curve asmuch as possible, especially at the edged of the band which represents the minimum values.STEP 12. Finally, check that the current in stand-by does not increase by more than 15÷20%, reaching atworst 2.3÷2.4A when the heat sink is hot and not ventilated.Note: when mounting-removing the PALLET on the heat sink, tightly fasten the screw of each all N input and outputconnectors. These are mounted with a single 3mm screw and if it is not properly fastened it may be detached from the PCBby a movement of the connector once it has already been soldered to the path.
45Component layout SCH0192AR0
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47COMPONENT LIST SCH0192AR0REF. DESCRIPTION ELETTRONIKA CODE Page 1/3R1 2200W 1/4W 1206 SMD RESISTOR 00045AR2 2200W 1/4W 1206 SMD RESISTOR 00045AR3 2200W 1/4W 1206 SMD RESISTOR 00045AR4 2200W 1/4W 1206 SMD RESISTOR 00045AR5 1200W 1/4W 1206 SMD RESISTOR 00042AR6 1200W 1/4W 1206 SMD RESISTOR 00042AR7 50kW MULTITURNS PTH TRIMMER 00800R8 50kW MULTITURNS PTH TRIMMER 00800R9 1200W 1/4W 1206 SMD RESISTOR 00042AR10 1200W 1/4W 1206 SMD RESISTOR 00042AR11 18kW 1/4W 1206 SMD RESISTOR 00056BR12 18kW 1/4W 1206 SMD RESISTOR 00056BR13 680KW 1/4W 1206 SMD RESISTOR 00075AR14 0W 1/4W 1206 SMD RESISTOR 00001R15 50W 30W 1512EBX SMD RESISTOR 00416AR16 50W 60W 00432R17 4.7kW 1/4W 1206 SMD RESISTOR 00049AR18 4.7kW 1/4W 1206 SMD RESISTOR 00049AR19 3.9W 1/4W 1206 SMD RESISTOR 00012AR20 3.9W 1/4W 1206 SMD RESISTOR 00012AR21 3.9W 1/4W 1206 SMD RESISTOR 00012AR22 3.9W 1/4W 1206 SMD RESISTOR 00012AR23 1000W 1W 2512 SMD RESISTOR 00396R24 1000W 1W 2512 SMD RESISTOR 00396*R25 = R15 (da montare se si inverte lingresso)*R26 = R26 (da montare se si inverte luscita)C1 470uF 50V PTH ELECTROLYTIC CAPACITOR 01807BC2 470uF 50V PTH ELECTROLYTIC CAPACITOR 01807BC3 470uF 50V PTH ELECTROLYTIC CAPACITOR 01807BC4 100uF 50V PTH ELECTROLYTIC CAPACITOR 01795C5 100uF 50V PTH ELECTROLYTIC CAPACITOR 01795C6 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C7 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C8 x 2 2 x 100nF ATC CAPACITOR OR EQUIVALENT 01065HC9 x 2 2 x 100nF ATC CAPACITOR OR EQUIVALENT 01065HC10 x 4 4 x 100pF ATC 100B CAPACITOR OR EQUIVALENT 01135C11 x 4 4 x 100pF ATC 100B CAPACITOR OR EQUIVALENT 01135C12 100nF 1210 SMD CAPACITOR 1065GC13 100nF 1210 SMD CAPACITOR 1065GC14 100nF 1210 SMD CAPACITOR 1065GC15 1uF 35V SMD TANTALIUM CAPACITOR 01613AC16 1uF 35V SMD TANTALIUM CAPACITOR 01613AC17 100nF 1210 SMD CAPACITOR 1065G
48REF. DESCRIPTION ELETTRONIKA CODE Page 2/3C18 100nF 1210 SMD CAPACITOR 1065GC19 10uF 16V SMD TANTALIUM CAPACITOR 01626AC20 10uF 16V SMD TANTALIUM CAPACITOR 01626AC21 100nF 1210 SMD CAPACITOR 1065GC22 100nF 1210 SMD CAPACITOR 1065GC23 100nF 1210 SMD CAPACITOR 1065GC24 100nF 1210 SMD CAPACITOR 1065GC25 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C26 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C27 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C28 1nF ATC 100B CAPACITOR OR EQUIVALENT 01145C29 20pF ATC 100B CAPACITOR OR EQUIVALENT 01123C30 20pF ATC 100B CAPACITOR OR EQUIVALENT 01123C31 20pF ATC 100B CAPACITOR OR EQUIVALENT 01123C32 20pF ATC 100B CAPACITOR OR EQUIVALENT 01123C33 1.3pF ATC 100B CAPACITOR OR EQUIVALENT 01104C34 1.3pF ATC 100B CAPACITOR OR EQUIVALENT 01104C35 470pF ATC 100B CAPACITOR OR EQUIVALENT 01143C36 470pF ATC 100B CAPACITOR OR EQUIVALENT 01143C37 470pF ATC 100B CAPACITOR OR EQUIVALENT 01143C38 470pF ATC 100B CAPACITOR OR EQUIVALENT 01143C39 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 01108C40 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 01108C41 x 2 2 x 1¸5pF JOHANSON SMD TRIMMER 1485C42 x 2 2 x 1¸5pF JOHANSON SMD TRIMMER 1485C43 3.6pF ATC 100B CAPACITOR OR EQUIVALENT 01104BC44 3.6pF ATC 100B CAPACITOR OR EQUIVALENT 01104BC45 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 01111C46 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 01111C47 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 01111C48 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 01111C49 13pF ATC 100B CAPACITOR OR EQUIVALENT 01119AC50 13pF ATC 100B CAPACITOR OR EQUIVALENT 01119AC51 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 01113C52 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 01113C53 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 01113C54 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 01113C55 10pF ATC 100B CAPACITOR OR EQUIVALENT 01117C56 10pF ATC 100B CAPACITOR OR EQUIVALENT 01117C57 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 01108C58 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 01108C59 0.3pF ATC 100B CAPACITOR OR EQUIVALENT 01160T1 BLF861A RF LDMOS POWER TRANSISTOR 04034T2 BLF861A RF LDMOS POWER TRANSISTOR 04034B1 COAX 2:1 BALUN 08491
49REF. DESCRIPTION ELETTRONIKA CODE Page 3/3B2 COAX 2:1 BALUN 08491B3 COAX 4:1 BALUN 08492B4 COAX 4:1 BALUN 08492L1 4 TURNS SILV. COP. WIRE 1.2mm WOUND ON OD 5mm 07684L2 4 TURNS SILV. COP. WIRE 1.2mm WOUND ON OD 5mm 07684L3 ½ TURN COILL4 ½ TURN COILH1 HYBRID COUPLER 3dB 90° ANAREN 05368H2 HYBRID COUPLER 3dB 90° SAGE 05369NTC1 NTC 100KW PTH 00661NTC2 NTC 100KW PTH 00661IC1 DG419DY 04583IC2 DG419DY 04583DZ1 15V SMD ZENER DIODE 03135DZ2 15V SMD ZENER DIODE 03135DZ3 6.8V SMD ZENER DIODE 03137DZ4 6.8V SMD ZENER DIODE 03137DL1 SMD LED DIODE - RED - 03056DL2 SMD LED DIODE - RED - 03056PN964AR3 PCB 0643KTorretta 3x10 f/f V0774Imballo velapack 200x125x50 09983
50AMPLIFIER INTERFACE SCH0221AR0Component layout SCH0221AR0COMPONENT LIST SCH0221AR0Part Name/Number Description Qty. Comps.CC 100nFAVX 01065A 01065A CERAMIC COND 4 C1-4CE 100uF100V 01795B ELETT. COND. 1 C8CE 100uF50V 01795 01795 ELETT. COND. 1 C6CE 10uF35V-S 01778A 01778A ELETTR SMD COND 2 C5, C7D 1N4007 03009 03009 DIODE 1 D1D 6CWQ10FN 03026 SMD DIODE SCHOTTKY 3,5A 3 D7-9IC LM317HV 04340A INTEG CIRCUIT 2 IC1-2J FC-16P 02701-02700 02701+02700 PCB CONNECTOR POL 1 J20J SCREWCONN2 02853 02853 PCB SCREW CONNECTOR 2 J19, J24J SCREWCONN3 02860 02860 PCB SCREW CONNECTOR 1 J18J TESTP1.3mm 07913 07913 TEST POINT 17 J1-17JU JUMP2 02739-02742 02739+02742 MASCHIO PAN2 3 JP1-2, JP4JU JUMP3 02707-02742 02707+02742 MASCHIO PAN3 1 JP3R 0R33-1W-S 00380 RES 1W 5% SMD 2512 2 R1-2R 100K-S 00065A 00065A RES 1/4W 5% SMD 1206 1 R7R 10K-S 00053A 00053A RES 1/4W 5% SMD 1206 1 R6R 220R-S 00033A 00033A RES 1/4W 5% SMD 1206 1 R4R 270R-S 00034A 00034A RES 1/4W5% SMD 1206 1 R3R 4K7-S 00049A 00049A RES 1/4W 5% SMD 1206 1 R5TR BC856 03455 03455 PNP SMD TRANSISTOR 1 TR1
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52MAINS DISTRIBUTION BOARD SCH0265AR0Component layout SCH0265AR0COMPONENT LIST SCH0265AR0Part Name/Number Description Qty. Comps.CC 2nF2 2kV 01045A 01045A CERAMIC COND 2 C1-2CNV AC-DC ATC-12S E0037 AC DC CONVERTER 1 CNV1D 1N4148 03001 03001 DIODE 2 D1-2DL LEDG3 03053 03053 GREEN LED DIODE 3mm 1 DL1J CON HD515V/05-4PVE 02881 + 02882 PANDUIT PCB CONN 1 J2J CON HD515V/05-5PVE PANDUIT PCB CO 1 J1R 2K7 0046 0046 RES 1/4W 5% 1 R1RL 40.31.24 7567C RELE 2 RLY1-2
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54INTERFACE BOARD SCH0288AR1Component layout SCH0288AR1COMPONENT LIST SCH0288AR1Part Name/Number Description Qty. Comps.CC 1nF-S 01096 01096 SMD 1206 COND 16 C1-16DZ 5V1-S 03128 03128 SMD ZENER DIODE 8 DZ1-8J FC-10P 02697-02699 02697+02699 PCB CONNECTOR POL 4 J2-3, J6-7J FC-10P PCB FEMALE 02706 PCB FEMALE CONNECTOR POL 4 J1, J4-5, J8R 0R0-S 00001 00001 RES 1/4W 5% SMD 1206 16 R1, R8, R12, R15, R21, R23, R26R28, R33, R40, R44, R47, R53, R55,R58, R60R 10K-S 00053A 00053A RES 1/4W 5% SMD 1206 16 R3-6, R17-18, R31-32, R35-38,R49-50, R63-64R 1206 NOT MOUNTED NOT MOUNTED RES 1/4W 5% SMD 12 16 R2, R10, R14, R16, R19, R24, R29,R30, R34, R42, R46, R48, R51, R56,R61-62RV 3266W NOT MOUNT NOT MOUNTED VARIABLE RESISTOR 16 R7, R9, R11, R13, R20, R22, R25,R27, R39, R41, R43, R45, R52, R54,R57, R59TR BC847 03456 03456 NPN SMD TRANSISTOR 8 TR1-8
56SPECIFICATIONMODEL SP-500-27 (E0012 Code) SP-500-48 (E0013 Code)DC Output Voltage 27Vdc 48VdcOutput Rated Current 18A 10AOutput Current Range 0-18A 0-10ARipple & Noise (p-p) 200mVp-p 240mVp-pDC Output Power 486W 480WEfficiency 87% 87%DC Voltage Adj. 24-30V 41-56VOver V. Protection 31V-36.5V 57.6V-67.2VInput Voltage Range 88-264VacInput Frequency 47-63HzPower Factor 0.95/100-240VacOverload Protection 105%-135%Type: Foldback current limitingRecovery: AutoOver Temp. Protection > =70°C Output ShutdownFan Control Temp. > =60°C Fan On < =50°C Fan OffWorking Temp., Humidity -10°C/+50°C, 20%-90% RHDimension 185x120x93Weight 1.8Kg.SP500-27-DI SWITCHING POWER SUPPLY E0012
58X X XR+R-X1K14.2VC38.9VR31FGAC/N12VX13.5V 15V 24VP5TerminalCN4X27V 48VF+ CN254AD270KR29AC/LCN2 V-HER104D8 C32102/250VAC8.9V2.2u/50VC25 2.2u/50VC24470u/25VC238.9V1KR24C158.9V104/100VC211N4001D251/2WR4BTA16-600BTRC1471ZNR18.9V 8.9V220u/25VC17T+T- CN29.1V/1W103/100VC675.1/1/2WR21499K/1WR9330KR301N4148D3CEBQ4C265522KR28221/1KVC20472/50VC13102/50VC11CN1V-150u/400VC26150u/400VC9CN2V+499K/1WR14CN1V+C1 474/250VACC16C2474/250VAC680K/1/2/WR12K2R252.2u/50VC22C5104/250VACTF-360LF210/5WR230K/2WR18474/250VACC730K/2WR17100R261N5819D5471/1KVC12C14222/250VAC499K/1WR15R31PART NO .SP-500A DIFFERENT COMPONENT:ZD4MODELHER104D7ZD4FS1F10A/250VACTF-360LF1C31NC(PSF)BCEQ8A562100R32HER104D40.22/2WR60.33/2WR715A/600VBD1C8474/250VACD9474/50VC1810KR16RHRP1650D1:B5.1R10150u/400VC10TR134L1:BC4222/250VACX22K2R23CEBC1815Q7CN2 B104/100VC6HER104D6 499K/1WR80.33/2WR5TR134L1:A473/50VC19680R27BCEA1020Q35.1R115K1R12RHRP1650D1:AQ1IRFPS37N50A15684237IACGTDRVAo u t VsCAoutMoutVccGNDLT1249U1Q2IRFPS37N50A
59UHF BANDPASS FILTER FC4E80C Code 066741.5kW, 4 Poles (Cross Coupling)FEATURES- UHF 1.5kW analog TV output filter- 4 poles elliptical response- Cross Coupling technique (two transmission zeros)- Foreshorten folded combline structure- Iris couplings with fine bandwidth regulation- 3D Electromagnetic CAD- High selectivity and low loss (Typ. 0.28dB @ V.C. Ch. 69 G)- Temperature stabilized design (< 4kHz / K)- Very compact and lightweightSPECIFICATIONS (Value referred to G Standard)Frequency Range 474 - 862MHz Selectivity > 40dB @ V.C. -5.5 / +11MHzMax Input Power 1.5kW Analog TV > 25dB @ V.C. -11 / +16.5MHzInsertion Loss* < 0.32dB @ V.C. Ch. 69 Temperature Stability < 4kHz / K< 0.27dB @ V.C. Ch. 21 Connectors° 7/16 FemaleReturn Loss > 28dB Weight (Approx) 6kgGroup Delay Variation < 30ns Operating temperature -10 to +50°CBandwidth 6 to 8MHzAVAILABLE OPTIONSA SMA Output Monitor Probe B SMB Output Monitor ProbeH EIA 7/8 Flange Connectors Z Painted BlackCALIBRATION PROCEDUREThe output filter mod. 06674 is a 4-resonator, cross coupling bandpass filter, having thereby elliptical response.It can be tuned on all the channels of the UHF TV band (470 - 862MHz) and according to all worldwidestandards (4.5 - 6.5MHz intercarrier). The elliptical response allows the exact placement of two deeptransmission nulls at the IMD spurs frequencies (V.C. - I.C. / S.C. - I.C.), making analog TV channel filterresponse the most efficient.
60Tunings (T1, T2, T3, T4) can be regulated simply by means of a suitable screwdriver.Couplings (K12, K23, K34) are regulated varying the insertion of the Post Screws, which are located betweenthe resonators; the insertion of the Post Screws increases the bandwidth, except for K23 which has theopposite effect of decreasing bandwidth as it is inserted. In order to execute this regulations it is necessary toloosen every lock nut by means of a pipe wrench n. 19.The elliptical response characteristics transmission nulls are set by the K14 Post Screw in a similar way asabove.External loads (KE) are adjusted by means of the two shafts (Coupling Stubs), available removing the protectioncaps opposite to each connector. A flat wrench n. 8 is required; the twist friction of these couplings can be settightening the relevant clamps with a pipe wrench n. 16.The regulation is carried out considering that when the marked dots are set towards the resonators couplingis maximum, otherwise tuning them 90 degrees from the maximum the minimum coupling is achieved.The symmetry of the response curve is slightly affected by the orientation of the external loads (KE); to getthe best response symmetry, always rotate both dots outwards.TUNING INSTRUCTIONSThe advised tuning sequence is the following:1. set the instrument state as follows:l C.F. = (V.C. + S.C.) / 2l SPAN = INTERCARRIER * 5 (E.G. 27.5mhZ std. G)l TRANSMISSION SCALE = 5dB/div.l REFLECTION SCALE = 5dB/div.l MKR1 = V.C.l MKR2 = S.C.l MKR3 = V.C. - VSB (E.G. V.C. -0.75MHz std. G)2. Preset the Coupling Posts K12, K23, K34 and K14 at middle value, i.e. at the middle of their stroke.Preset the external loads KE at middle value, i.e. the marked dots orientated 45 degrees one outward theother, starting from the highest position.3. The tuning is based upon the sample diagram attached. The final response must be the same for any channeland any standard. Center the tunings (T1, T2, T3, T4) on the required channels center frequency, and setK14 in order to place the response nulls at the required IMD frequencies. Proceed with the external loads KE
61and bandwidth couplings K12/K34 and K23. Improve the tuning by repeatedly acting as before. The electricalsymmetry implies K12 equal to K34 (same heights) and KE/KE (same rotation angle). Regulate K14 eachpass to set the transmission nulls.IMPORTANT NOTICE: the most effective tuning for analog TV channels is NOT equiripple, bus has -30dB R.L. atmiddle peak and -35dB R.L. at outer peaks.4. A high quality tuning will exhibit deep return loss dips, as in reported diagram. At the end of the tuningprocess, lock the trim points (Posts and Coupling Stubs) and assemble the coupling protection caps on thefilter.TIME DOMAIN TUNING5. This filter is particularly suitable for time domain tuning. This tuning technique, available with HP/Agilent andRohde & Schwarz analyzers, is time saving and gives optimum results. The time domain graph contains all theinformation about the parameters to be tuned, the tuning process becomes deterministic and it is not requiredto be skilled. A vector network analizer with S-parameter test set is recommended. The following instructionsrefers to Agilent HP8753ES unit. Execute a full two-port calibration, and start tuning the filter according theprevious instructions, up tyo step 3. When the filter is roughly tuned in frequency domain, you can togglemodality.5a. Turn on the Time Domain mode, taking a look at both S11 and S22 (System / Transform / Bandpass). Setthe time scale from -80 to 130ns, and amplitude scale at 5dB/dib. The displayed trace should be similar to theexample reported. The time domain interpretation is the following:l the first peak is related to KE/KEl the first dip is related to T1/T4l the second peak is related to K12/K34l the second dip is related to T2/T3l the third peak is related to K235b. Tune repeatedly the filter starting from the outside to the center, whichcorresponds to follow the time domain graph starting from left to right. Theresonators shall produce the deepest dips, whereas the couplings shall beset to the following amplitude values (use markers to measure peakamplitudes).IMPORTANT NOTICE: K14 is NOT detectable in time domain, and have tobe continuously set in the frequency domain.TUNING VALUEKE/KE -17dBK12/K34 -10.5dBK23 -10dB
625c. Turn back to frequency domain mode to check the tuning. Maybe the filter is perfectly tuned, but slightlyshifted in center frequency. This dependes upon a possible small difference between response centre andelectrical centre frequencies. It is straighforward in this case to centre the filter acting on the tunings.5d. A high quality tuning will exhibit deep return loss dips, as in reported diagram. At the end of the tuningprocess, lock the trim points (Posts and Coupling Stubs) and assemble the coupling protection caps on thefilter.Ref.: HP/Agilent Simplified Filter Tuning Usiong Time Domain, application note 1287-8.SPECIFICATIONS OVER THE UHF BANDMEASURE VALUEInsertion loss @ V.C. (dB) < 0.32dB @ V.C. Ch. 69 G (Typ. 0.28)< 0.27dB @ V.C. Ch. 21 G (Typ. 0.24)Return Loss (from V.C. -0.75 to V.C. +0.25) > 28dBAttenuation @ V.C. -INTERCARRIER > 40dBAttenuation @ V.C. +INTERCARRIER > 40dBFIG. 1SAMPLE FREQUENCY RESPONSE DIAGRAMFIG. 2SAMPLE TIME DOMAIN RESPONSE DIAGRAM

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