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
Contents
- 1. Exciter user manual Part 1
- 2. Exciter user manual Part 2
- 3. Exciter user manual Part 3
- 4. Amplifier User manual Part 1
- 5. Amplifier User manual Part 2
Amplifier User manual Part 2
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| Document ID | 636820 |
| Application ID | cf22C6JvL+y/PPaP3/FO6g== |
| Document Description | Amplifier User manual Part 2 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 133.5kB (1668756 bits) |
| Date Submitted | 2006-03-15 00:00:00 |
| Date Available | 2006-08-04 00:00:00 |
| Creation Date | 2006-03-06 14:48:47 |
| Producing Software | Acrobat Distiller 3.0 for Windows |
| Document Lastmod | 2006-03-06 14:49:04 |
| Document Title | APT144A_AUTV_1500LD_Rev0_Date081104 |
| Document Creator | Adobe PageMaker 6.5 |
| Document Author: | Gianluca |
_______________________________________________________________________________________________ Section 4 - Diagram Contents: - 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) 33 34 35 36 Component list MTF0070CR0 Amplifier module Part Name Code Description Qty 00001 01041D 00221B 03207 SCH0192AR0 SCH0221AR0 SCH0248AR0 SCH0249AR0 SCH0250AR0 SCH0251AR0 SCH0252AR0 PN1091A 02402 02512 01400 01408 DET0726 DET0727 DET0728 DET0729 DET0730 DET0732 DET0734 DET0736 DET0807 DET0810 DET0811 DET0812 DET0819 DET0828 DET0839 08502 08527 03017 PN0998A 0W 1206 SMD RESISTOR 1nF 1206 2% SMD CAPACITOR 75W 1206 1% SMD RESISTOR HSMS-2802*L31 DIODE 200W UHF LDMOS AMPLIFIER MODULE AMPLIFIER INTERFACE 8 WAY WILKINSON 4 WAY WILKINSON Dx 4 WAY WILKINSON Sx 2 WAY WILKINSON 1500W UHF INPUT COUPLER C.S. PN1091AR3 OUTPUT DIRECTIONAL COUPLER 1 7/16 FEMALE CONNECTOR cod. 0142 J01151A0531 SMA SOCKET WITHOUT BAT. 2499-003-X5U0-102M FEED-THROUGH CAPACITOR 13 5000PF FEED-THROUGH CAPACITOR DET0726R2 SIDE x 1500W UHF AMP. MOD. DET0727R1 INTERNAL FRONT SIDE x AMP. MOD. DET0728R4 INTERNAL SIDE x AMP. MOD. DET0729R2 FRONT SIDE x AMP. MOD. DET0730R2 REAR SIDE x AMP. MOD. DET0732R1 CONNECTIONS SUPPORT BOARD DET0734R0 COVER x AMPLIFIER MODULE P. 2634 DET0736R6 HEATSINK x AMPLIFIER MODULE DET0807R3 SCREEN DIR. COUPLER MODULE DET0810R0 PART. x DIRECTIONAL COUPLER DET0811R1 COVER x DIRECTIONAL COUPLER DET0812R1 TEFLON RING x DIRECTIONAL COUPLER 1 DET0819R0 SPESS. x INPUT DIR. COUPLER DET0828R0 COVER x AMPLIFIER MODULE P. 2644 DET0839R2 DIRECTIONAL COUPLER RG316 50W CABLE 3,00 HF-85 ENDIFORM CABLE 0,20 MBR3045PT DIODE PN998AR1 POWER SUPPLY ADDED PCB 37 This page is intentionally blank 38 Component list APT144A - AUTV/1500LD Part Name Code Description Qty 05553B V0962 V0760 SCH0223AR1 SCH0265AR0 MTF0070CR0 09419 PN1114A 07925 07515C 07524A 07541 02830 02893 02894 02695 02699 02700 02228 02502 02876 02877 07605A 07605B 07605F 01041 00664 FUS1A FUS3A FUS5A CON0171 CON0178 DET0516 DET0772 Z0021 Z0081 Z0673 E0012 PAN0074 08503 DET0575 SCH0288AR2 CON0237 CON0238 DET0996 DET0995 KIT MANIGLIE 5-6U cod. 235.013 MORSETTIERA/GIUNZIONE ELECO E806 TAPPI NERI 0 9.5 PLASTICA DP-375 CONTROL BOARD AND DISPLAY MAINS DISTRIBUTION BOARD RF AMPLIFIER MODULE C.S. PN419/A SUPPOR. SENSORE TEMPER. C.S. PN1114AR1 SCHEDA CABL. VENT. x 1kW III PROTEZIONE IN GOMMA PVC PG 075 INTER. AUTOM. 4P*16A 4.5KA 2 mod. GW 90087 INTERR. NERI I3910 PORTAFUS. 10A PANN. cod. P1820 PRESA VDE 10A cod. PX675 A63 MORSETTIERA ESTRA. 3VIE MAS. KSC 3 MORSETTIERA ESTRA. 3 VIE FEM. KB 3 CONNETTORE DB9F x CAVO IU008059 CONNETTORE cod. IDS10FSR1 FEMM. 10 VIE CONNETTORE cod. IDS16FSR1 FEM. 16 VIE GE 15145 D/60 NF A VITONE J01150A0041 SMA x RG58/c PRESA VOLANTE ILME 16A PENTAPOLARE 4MT SPINA A PANNELLO ILME 16A 5P 35cm COND. 2uF VENTOLA D2E097-BI56-48 GRIGLIA 09485-2-4039 1nF COND. CERAMICO 50V SENSORE TERMICO LM 35DT FUSIBILI 1A 5x20 RITARDATI ST520210 FUSIB. 3.15A 5x20 RITAR. ST520231 FUSIBILI 5A 5x20 RITARDATI ST520250 CON0171R5 SOST. VENT. 1kW LDM. PH. ZN P.2614 CON0178R4 POST. 1500W LDMOS UHF ZN DET0516R0 SUPPORTO PRESE ZN P.2642 DET0772R0 BARRETTA FISSAGGIO VENTOLE TONDO IN OTTONE x INT. MAGNET. TAV. 635/A SUPPORTO GUIDA DIN INT. MAG. TAV. 1199 CHIUS. CONT. PROF. 775 ZN P.2366 SP-500-27 DE2 SWITCHING POWER SUPPLY PAN0074AR2 PANN. 6U AMPLIFICATORE LDMOS CABLE RG303 50W TEFLON DET0575R1 BARRA FISSAGGIO ALIM. SP-500 INTERFACE BOARD CON0237R2 LAT. SX 1500W UHF MW P.2743 ZN CON0238R1 LAT. DX 1500W UHF MW P.2744 ZN DET0996R0 BARRA FISS. SCHEDA DISTR. RETE DET0995R0 BARRA FISSAGGIO ALIM. SP-500 1,20 39 This page is intentionally blank 40 200W UHF LDMOS AMPLIFIER MODULE SCH0192AR0 DESCRIPTION The RF module is an integrated TV linear amplifier designed for UHF band, this module employs push-pull LDMOS 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 is required for the channel change. The board includes RF section amplifier, bias circuit, protection circuit and matching 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 broadband UHF power transmitter. TECHNICAL CHARACTERISTICS Output power Input power Frequency Gain LDMOS Power supply LDMOS Bias current @+32V Vdc RF Input impedance RF Output impedance Input / Output return loss Drain efficiency Storage temperature range Dimensions (LxWxH) 300W max 15W max 470 - 860MHz > 13dB 32V ±2% 2A 50W 50W > = 15dB 47% @ 250W -50° to +150°C 165x95x29mm 41 - Curve response graphic Middle frequency 660MHz, span 500MHz, 2dB/div., reference to the arrow CALIBRATION PROCEDURE - Technical characteristics Power supply voltage Polarisation current Gain for low signal 32V (± 2%) 1.0 cold for each device (2A total), ± 0.1A Not less than 13dB in the 470-860MHz band (± 1dB) Compare to the typical curve eclosed - Adjustment procedure Polarisation current calibration Gain curve 32V stabilised power supply 10A amperometer Network analyser - Adjustment points description R7-R8 (Trimmers) 42 Adjust the current absorbed in stand-by (1.0A per device) - Calibration steps STEP 1. Close the input and the output of the module by connecting them to a 50W W dummy load and connect the spectrum analyser through a directive sample, in order to look for self-oscillation of the module, if any (anyway the module has been designed so that it would not self-oscillate even if totally decoupled, 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 check data: - 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 R24 resistors 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; Solder a wire - 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 red LEDs will immediately light up and the two RF transistors will be switched off at the same time: the polarisation current (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! Then disconnect the 32V power supply. STEP 4. Fastening of the LDMOS transistors: after properly cleaning the plate surface, smear a thin layer of silicone fat on the lower side of the flange of the MOSFETs, fasten them to the heat sink and solder the gate first, then the drain. Solder the two 13pF (ATC) chip capacitors and above them the two 1-5pF 43 capacitive trimmers, between the two pair of gates, as shown by the mounting plan. STEP 5. 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 device is integral and working correctly. STEP 7. Slowly turn the R7 trimmer until the MOSFET absorbs 1A, always checking that there are no self-oscillation; under this conditions it is possible to check by means of a digital tester that the voltage on the gate is about 5.2-5.4V. STEP 8. Repeat the previous step for the other section of the module, this time turnign R8 and checking that the indication of the current on the amperometer increases to 2A total (which includes the current of the other 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, act on the four trimmers C41-C41a and C42-C42a with the proper calibrator, inorder to flatten the curve as much 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 at worst 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 output connectors. These are mounted with a single 3mm screw and if it is not properly fastened it may be detached from the PCB by a movement of the connector once it has already been soldered to the path. 44 Component layout SCH0192AR0 45 46 COMPONENT LIST SCH0192AR0 REF. DESCRIPTION ELETTRONIKA CODE R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 *R25 *R26 C1 C2 C3 C4 C5 C6 C7 C8 x 2 C9 x 2 C10 x 4 C11 x 4 C12 C13 C14 C15 C16 C17 2200W 1/4W 1206 SMD RESISTOR 2200W 1/4W 1206 SMD RESISTOR 2200W 1/4W 1206 SMD RESISTOR 2200W 1/4W 1206 SMD RESISTOR 1200W 1/4W 1206 SMD RESISTOR 1200W 1/4W 1206 SMD RESISTOR 50kW MULTITURNS PTH TRIMMER 50kW MULTITURNS PTH TRIMMER 1200W 1/4W 1206 SMD RESISTOR 1200W 1/4W 1206 SMD RESISTOR 18kW 1/4W 1206 SMD RESISTOR 18kW 1/4W 1206 SMD RESISTOR 680KW 1/4W 1206 SMD RESISTOR 0W 1/4W 1206 SMD RESISTOR 50W 30W 1512EBX SMD RESISTOR 50W 60W 4.7kW 1/4W 1206 SMD RESISTOR 4.7kW 1/4W 1206 SMD RESISTOR 3.9W 1/4W 1206 SMD RESISTOR 3.9W 1/4W 1206 SMD RESISTOR 3.9W 1/4W 1206 SMD RESISTOR 3.9W 1/4W 1206 SMD RESISTOR 1000W 1W 2512 SMD RESISTOR 1000W 1W 2512 SMD RESISTOR = R15 (da montare se si inverte lingresso) = R26 (da montare se si inverte luscita) 470uF 50V PTH ELECTROLYTIC CAPACITOR 470uF 50V PTH ELECTROLYTIC CAPACITOR 470uF 50V PTH ELECTROLYTIC CAPACITOR 100uF 50V PTH ELECTROLYTIC CAPACITOR 100uF 50V PTH ELECTROLYTIC CAPACITOR 1nF ATC 100B CAPACITOR OR EQUIVALENT 1nF ATC 100B CAPACITOR OR EQUIVALENT 2 x 100nF ATC CAPACITOR OR EQUIVALENT 2 x 100nF ATC CAPACITOR OR EQUIVALENT 4 x 100pF ATC 100B CAPACITOR OR EQUIVALENT 4 x 100pF ATC 100B CAPACITOR OR EQUIVALENT 100nF 1210 SMD CAPACITOR 100nF 1210 SMD CAPACITOR 100nF 1210 SMD CAPACITOR 1uF 35V SMD TANTALIUM CAPACITOR 1uF 35V SMD TANTALIUM CAPACITOR 100nF 1210 SMD CAPACITOR 00045A 00045A 00045A 00045A 00042A 00042A 00800 00800 00042A 00042A 00056B 00056B 00075A 00001 00416A 00432 00049A 00049A 00012A 00012A 00012A 00012A 00396 00396 Page 1/3 01807B 01807B 01807B 01795 01795 01145 01145 01065H 01065H 01135 01135 1065G 1065G 1065G 01613A 01613A 1065G 47 REF. DESCRIPTION ELETTRONIKA CODE C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 x 2 C42 x 2 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 T1 T2 B1 100nF 1210 SMD CAPACITOR 10uF 16V SMD TANTALIUM CAPACITOR 10uF 16V SMD TANTALIUM CAPACITOR 100nF 1210 SMD CAPACITOR 100nF 1210 SMD CAPACITOR 100nF 1210 SMD CAPACITOR 100nF 1210 SMD CAPACITOR 1nF ATC 100B CAPACITOR OR EQUIVALENT 1nF ATC 100B CAPACITOR OR EQUIVALENT 1nF ATC 100B CAPACITOR OR EQUIVALENT 1nF ATC 100B CAPACITOR OR EQUIVALENT 20pF ATC 100B CAPACITOR OR EQUIVALENT 20pF ATC 100B CAPACITOR OR EQUIVALENT 20pF ATC 100B CAPACITOR OR EQUIVALENT 20pF ATC 100B CAPACITOR OR EQUIVALENT 1.3pF ATC 100B CAPACITOR OR EQUIVALENT 1.3pF ATC 100B CAPACITOR OR EQUIVALENT 470pF ATC 100B CAPACITOR OR EQUIVALENT 470pF ATC 100B CAPACITOR OR EQUIVALENT 470pF ATC 100B CAPACITOR OR EQUIVALENT 470pF ATC 100B CAPACITOR OR EQUIVALENT 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 2 x 1¸5pF JOHANSON SMD TRIMMER 2 x 1¸5pF JOHANSON SMD TRIMMER 3.6pF ATC 100B CAPACITOR OR EQUIVALENT 3.6pF ATC 100B CAPACITOR OR EQUIVALENT 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 6.8pF ATC 100B CAPACITOR OR EQUIVALENT 13pF ATC 100B CAPACITOR OR EQUIVALENT 13pF ATC 100B CAPACITOR OR EQUIVALENT 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 8.2pF ATC 100B CAPACITOR OR EQUIVALENT 10pF ATC 100B CAPACITOR OR EQUIVALENT 10pF ATC 100B CAPACITOR OR EQUIVALENT 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 4.7pF ATC 100B CAPACITOR OR EQUIVALENT 0.3pF ATC 100B CAPACITOR OR EQUIVALENT BLF861A RF LDMOS POWER TRANSISTOR BLF861A RF LDMOS POWER TRANSISTOR COAX 2:1 BALUN 1065G 01626A 01626A 1065G 1065G 1065G 1065G 01145 01145 01145 01145 01123 01123 01123 01123 01104 01104 01143 01143 01143 01143 01108 01108 1485 1485 01104B 01104B 01111 01111 01111 01111 01119A 01119A 01113 01113 01113 01113 01117 01117 01108 01108 01160 04034 04034 08491 48 Page 2/3 REF. DESCRIPTION ELETTRONIKA CODE B2 B3 B4 L1 L2 L3 L4 H1 H2 NTC1 NTC2 IC1 IC2 DZ1 DZ2 DZ3 DZ4 DL1 DL2 PN964AR3 COAX 2:1 BALUN COAX 4:1 BALUN COAX 4:1 BALUN 4 TURNS SILV. COP. WIRE 1.2mm WOUND ON OD 5mm 4 TURNS SILV. COP. WIRE 1.2mm WOUND ON OD 5mm ½ TURN COIL ½ TURN COIL HYBRID COUPLER 3dB 90° ANAREN HYBRID COUPLER 3dB 90° SAGE NTC 100KW PTH NTC 100KW PTH DG419DY DG419DY 15V SMD ZENER DIODE 15V SMD ZENER DIODE 6.8V SMD ZENER DIODE 6.8V SMD ZENER DIODE SMD LED DIODE - RED SMD LED DIODE - RED PCB Torretta 3x10 f/f Imballo velapack 200x125x50 08491 08492 08492 07684 07684 Page 3/3 05368 05369 00661 00661 04583 04583 03135 03135 03137 03137 03056 03056 0643K V0774 09983 49 AMPLIFIER INTERFACE SCH0221AR0 Component layout SCH0221AR0 COMPONENT LIST SCH0221AR0 Part Name/Number Description Qty. Comps. CC 100nFAVX 01065A CE 100uF100V CE 100uF50V 01795 CE 10uF35V-S 01778A D 1N4007 03009 D 6CWQ10FN IC LM317HV J FC-16P 02701-02700 J SCREWCONN2 02853 J SCREWCONN3 02860 J TESTP1.3mm 07913 JU JUMP2 02739-02742 JU JUMP3 02707-02742 R 0R33-1W-S R 100K-S 00065A R 10K-S 00053A R 220R-S 00033A R 270R-S 00034A R 4K7-S 00049A TR BC856 03455 01065A CERAMIC COND 01795B ELETT. COND. 01795 ELETT. COND. 01778A ELETTR SMD COND 03009 DIODE 03026 SMD DIODE SCHOTTKY 3,5A 04340A INTEG CIRCUIT 02701+02700 PCB CONNECTOR POL 02853 PCB SCREW CONNECTOR 02860 PCB SCREW CONNECTOR 07913 TEST POINT 02739+02742 MASCHIO PAN2 02707+02742 MASCHIO PAN3 00380 RES 1W 5% SMD 2512 00065A RES 1/4W 5% SMD 1206 00053A RES 1/4W 5% SMD 1206 00033A RES 1/4W 5% SMD 1206 00034A RES 1/4W5% SMD 1206 00049A RES 1/4W 5% SMD 1206 03455 PNP SMD TRANSISTOR 17 C1-4 C8 C6 C5, C7 D1 D7-9 IC1-2 J20 J19, J24 J18 J1-17 JP1-2, JP4 JP3 R1-2 R7 R6 R4 R3 R5 TR1 50 51 MAINS DISTRIBUTION BOARD SCH0265AR0 Component layout SCH0265AR0 COMPONENT LIST SCH0265AR0 Part Name/Number Description Qty. Comps. CC 2nF2 2kV 01045A CNV AC-DC ATC-12S D 1N4148 03001 DL LEDG3 03053 J CON HD515V/05-4PVE J CON HD515V/05-5PVE R 2K7 0046 RL 40.31.24 01045A CERAMIC COND E0037 AC DC CONVERTER 03001 DIODE 03053 GREEN LED DIODE 3mm 02881 + 02882 PANDUIT PCB CONN PANDUIT PCB CO 0046 RES 1/4W 5% 7567C RELE C1-2 CNV1 D1-2 DL1 J2 J1 R1 RLY1-2 52 53 INTERFACE BOARD SCH0288AR1 Component layout SCH0288AR1 COMPONENT LIST SCH0288AR1 Part Name/Number Description Qty. Comps. CC 1nF-S 01096 DZ 5V1-S 03128 J FC-10P 02697-02699 J FC-10P PCB FEMALE R 0R0-S 00001 01096 SMD 1206 COND 03128 SMD ZENER DIODE 02697+02699 PCB CONNECTOR POL 02706 PCB FEMALE CONNECTOR POL 00001 RES 1/4W 5% SMD 1206 16 16 R 10K-S 00053A 00053A RES 1/4W 5% SMD 1206 16 R 1206 NOT MOUNTED NOT MOUNTED RES 1/4W 5% SMD 12 16 RV 3266W NOT MOUNT NOT MOUNTED VARIABLE RESISTOR 16 TR BC847 03456 03456 NPN SMD TRANSISTOR C1-16 DZ1-8 J2-3, J6-7 J1, J4-5, J8 R1, R8, R12, R15, R21, R23, R26 R28, R33, R40, R44, R47, R53, R55, R58, R60 R3-6, R17-18, R31-32, R35-38, R49-50, R63-64 R2, R10, R14, R16, R19, R24, R29, R30, R34, R42, R46, R48, R51, R56, R61-62 R7, R9, R11, R13, R20, R22, R25, R27, R39, R41, R43, R45, R52, R54, R57, R59 TR1-8 54 SP500-27-DI SWITCHING POWER SUPPLY E0012 SPECIFICATION MODEL SP-500-27 (E0012 Code) SP-500-48 (E0013 Code) DC Output Voltage Output Rated Current Output Current Range Ripple & Noise (p-p) DC Output Power Efficiency DC Voltage Adj. Over V. Protection Input Voltage Range Input Frequency Power Factor Overload Protection 27Vdc 18A 0-18A 200mVp-p 486W 87% 24-30V 31V-36.5V 88-264Vac 47-63Hz 0.95/100-240Vac 105%-135% Type: Foldback current limiting Recovery: Auto > =70°C Output Shutdown Temp. > =60°C Fan On < =50°C Fan Off -10°C/+50°C, 20%-90% RH 185x120x93 1.8Kg. 48Vdc 10A 0-10A 240mVp-p 480W 87% 41-56V 57.6V-67.2V Over Temp. Protection Fan Control Working Temp., Humidity Dimension Weight 56 C31 FG AC/L FS1 F10A/250VAC C16 CN2 V- L1:B TR134 474/250VAC C1 D7 HER104 C32 102/250VAC 8.9V R31 ZD4 8.9V SP-500A DIFFERENT COMPONENT: MODEL 13.5V 12V PART NO . D8 HER104 C15 Q8 A562 Q7 D2 1N4001 8.9V 15V C1815 CN2 8.9V CN2 F+ CN2 T+ D4 HER104 D6 HER104 8.9V 27V NC(PSF) Terminal P5 24V R+ CN4 R- R4 51/2W T- BD1 15A/600V TRC1 BTA16-600B R2 10/5W ZNR1 471 C6 104/100V LF2 TF-360 C17 220u/25V C7 474/250VAC R17 30K/2W 8.9V 48V R18 30K/2W LF1 TF-360 C8 474/250VAC C67 103/100V R21 5.1/1/2W R11 5.1 474/50V C18 IAC C19 Q2 IRFPS37N50A Q1 IRFPS37N50A D1:B RHRP1650 R10 5.1 D1:A RHRP1650 GTDR U1 LT1249 Vs VAout GND CAout Mout Vcc 9.1V/1W 1K 54AD R8 499K/1W 0.33/2W R7 R6 0.22/2W R5 0.33/2W L1:A TR134 D9 R9 499K/1W AC/N C2 474/250VAC C24 2.2u/50V C25 2.2u/50V ZD4 14.2V C23 470u/25V R23 2K2 680K/1/2/W R1 C4 C3 222/250VACX2 R24 1K C22 2.2u/50V R32 100 C5 104/250VAC R25 2K2 R31 C21 104/100V 473/50V 330K R30 Q4 C2655 D3 1N4148 R26 100 D5 1N5819 Q3 A1020 R12 5K1 C13 22K 270K C20 221/1KV R29 R16 10K CN1 V- 472/50V R28 CN2 V+ C9 150u/400V 471/1KV C12 C11 102/50V C26 150u/400V R27 680 CN1 V+ R14 499K/1W R15 499K/1W 58 C14 222/250VAC C10 150u/400V UHF BANDPASS FILTER FC4E80C 1.5kW, 4 Poles (Cross Coupling) Code 06674 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 lightweight SPECIFICATIONS (Value referred to G Standard) Frequency Range Max Input Power Insertion Loss* Return Loss Group Delay Variation Bandwidth 474 - 862MHz 1.5kW Analog TV < 0.32dB @ V.C. Ch. 69 < 0.27dB @ V.C. Ch. 21 > 28dB < 30ns 6 to 8MHz Selectivity Temperature Stability Connectors° Weight (Approx) Operating temperature > 40dB @ V.C. -5.5 / +11MHz > 25dB @ V.C. -11 / +16.5MHz < 4kHz / K 7/16 Female 6kg -10 to +50°C SMB Output Monitor Probe Painted Black AVAILABLE OPTIONS SMA Output Monitor Probe EIA 7/8 Flange Connectors CALIBRATION PROCEDURE The 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 worldwide standards (4.5 - 6.5MHz intercarrier). The elliptical response allows the exact placement of two deep transmission nulls at the IMD spurs frequencies (V.C. - I.C. / S.C. - I.C.), making analog TV channel filter response the most efficient. 59 Tunings (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 between the resonators; the insertion of the Post Screws increases the bandwidth, except for K23 which has the opposite effect of decreasing bandwidth as it is inserted. In order to execute this regulations it is necessary to loosen 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 as above. External loads (KE) are adjusted by means of the two shafts (Coupling Stubs), available removing the protection caps opposite to each connector. A flat wrench n. 8 is required; the twist friction of these couplings can be set tightening 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 coupling is 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 get the best response symmetry, always rotate both dots outwards. TUNING INSTRUCTIONS The advised tuning sequence is the following: 1. set the instrument state as follows: l C.F. = (V.C. + S.C.) / 2 l SPAN = INTERCARRIER * 5 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. 27.5mhZ std. G) (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 the other, starting from the highest position. 3. The tuning is based upon the sample diagram attached. The final response must be the same for any channel and any standard. Center the tunings (T1, T2, T3, T4) on the required channels center frequency, and set K14 in order to place the response nulls at the required IMD frequencies. Proceed with the external loads KE 60 and bandwidth couplings K12/K34 and K23. Improve the tuning by repeatedly acting as before. The electrical symmetry implies K12 equal to K34 (same heights) and KE/KE (same rotation angle). Regulate K14 each pass to set the transmission nulls. IMPORTANT NOTICE: the most effective tuning for analog TV channels is NOT equiripple, bus has -30dB R.L. at middle 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 tuning process, lock the trim points (Posts and Coupling Stubs) and assemble the coupling protection caps on the filter. TIME DOMAIN TUNING 5. This filter is particularly suitable for time domain tuning. This tuning technique, available with HP/Agilent and Rohde & Schwarz analyzers, is time saving and gives optimum results. The time domain graph contains all the information about the parameters to be tuned, the tuning process becomes deterministic and it is not required to be skilled. A vector network analizer with S-parameter test set is recommended. The following instructions refers to Agilent HP8753ES unit. Execute a full two-port calibration, and start tuning the filter according the previous instructions, up tyo step 3. When the filter is roughly tuned in frequency domain, you can toggle modality. 5a. Turn on the Time Domain mode, taking a look at both S11 and S22 (System / Transform / Bandpass). Set the time scale from -80 to 130ns, and amplitude scale at 5dB/dib. The displayed trace should be similar to the example reported. The time domain interpretation is the following: l the first peak is related to KE/KE l the first dip is related to T1/T4 l the second peak is related to K12/K34 l the second dip is related to T2/T3 l the third peak is related to K23 5b. Tune repeatedly the filter starting from the outside to the center, which corresponds to follow the time domain graph starting from left to right. The resonators shall produce the deepest dips, whereas the couplings shall be set to the following amplitude values (use markers to measure peak amplitudes). IMPORTANT NOTICE: K14 is NOT detectable in time domain, and have to be continuously set in the frequency domain. TUNING VALUE KE/KE -17dB K12/K34 -10.5dB K23 -10dB 61 5c. Turn back to frequency domain mode to check the tuning. Maybe the filter is perfectly tuned, but slightly shifted in center frequency. This dependes upon a possible small difference between response centre and electrical 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 tuning process, lock the trim points (Posts and Coupling Stubs) and assemble the coupling protection caps on the filter. Ref.: HP/Agilent Simplified Filter Tuning Usiong Time Domain, application note 1287-8. SPECIFICATIONS OVER THE UHF BAND MEASURE Insertion 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) > 28dB Attenuation @ V.C. -INTERCARRIER > 40dB Attenuation @ V.C. +INTERCARRIER > 40dB FIG. 1 SAMPLE FREQUENCY RESPONSE DIAGRAM 62 VALUE FIG. 2 SAMPLE TIME DOMAIN RESPONSE DIAGRAM
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