2ACTRHLA305VHF power amplifier

1 3 Amplificatore Lineare per bande HF a stato solido Solid-State HF Linear Power Amplifier HLA 305 Manuale Utente User Manual 3 Costruzioni Elettroniche S.n.c. www.rmitaly.com HLA 305 2 3 1. Introduzione L'amplificatore HLA305 è un amplificatore lineare ad alte prestazioni costruito per essere utilizza- to con tutti i ricetrasmettitori HF in tutte le modalità di trasmissione. Questo amplificatore utilizza quattro dispositivi bipolari MRF455 configurati in classe AB. Opera in tutte le bande da 160 a 10 metri in maniera lineare e senza interruzioni da 1,5 e 30MHz. Una ventilazione forzata (HLA305V) a velocità variabile provvede al raffreddamento di tutte le parti dell'amplificatore, un circuito elettronico controllato da un microprocessore ne controlla il fun- zionamento. Un display LCD, vi tiene sempre informati sui parametri fondamentali dell'amplificatore. Tempera- tura dissipatore, banda impostata e molte altre informazioni sono visualizzabili per avere sotto controllo in ogni momento lo stato di funzionamento dell'amplificatore. Vi raccomandiamo la lettura del presente manuale in tutte le sue parti prima della messa in fun- zione dell'amplificatore. Conoscere il funzionamento di tutte le sezioni dell'amplificatore vi permetterà un uso più perfor- mante ed eviterà errori che, oltre a causare una perdita di potenza in uscita, potrebbero determi- nare danni ai componenti anche in maniera irreversibile. Un uso attento e corretto vi farà apprezzare le "performance" dell’HLA 305 per molti anni senza nessun intervento tecnico. Introduction The HLA 305 Linear Amplifier is a high performance amplifier designed for use with all HF trans- ceivers and all modes of transmission. The amplifier uses four MRF455 configured for Class AB operation. Operation is possible for all bands from 160 to 10 meters and without interruption from 1.5 to 30 MHz. It features a microprocessor controlled variable speed forced air ventilation (HLA305V) that provi- des cooling for all areas of the amplifier. An LCD display shows all of the amplifiers operational parameters; Heat-sink temperature, band in use and other parameters, enabling the operator to see the state of the amplifier at any time. This allows the user to obtain the maximum performance and avoid any possible operating errors resulting in a loss of output power and possible irreversible component damage. Attention to correct operating procedure and operating the amplifier within it’s capabilities will re- sult in optimum performance and many years of trouble free use. HLA 305 3 3 2. Indice – Index 1 Introduzione – Introduction .................................................................................................................................................................................. 2 2 Indice – Index ...................................................................................................................................................................................................... 3 3 Specifiche - Specifications .................................................................................................................................................................................. 4 4 Descrizione parte Anteriore - Front panel description ......................................................................................................................................... 6 5 Descrizione parte Posteriore - Rear panel description ........................................................................................................................................ 6 6 Italiano .......................................................................................... 7 6.1 Rimozione dall'imballo ed ispezione ............................. 7 6.2 Procedura d'installazione .............................................. 7 6.3 Connessione all’alimentazione ...................................... 7 6.4 Antenna ......................................................................... 7 6.5 Massa ............................................................................ 7 6.6 PERICOLI ...................................................................... 7 7 Funzionamento ............................................................................ 7 7.1 Uso in CW ..................................................................... 7 7.2 Impostazioni iniziali ....................................................... 7 7.3 Menù ............................................................................. 7 7.3.1 SSB Delay ..................................................... 7 7.3.2 Backlight High/Low ........................................ 7 7.3.3 Contrast ......................................................... 8 7.3.4 Exit ................................................................. 8 7.4 Operate ......................................................................... 8 7.4.1 Default Setting ............................................... 8 7.4.2 Visualizzazione stato amplificatore ................ 8 7.4.2.1 Display LCD ................................... 8 7.4.2.2 Indicazioni Lumisose ...................... 8 7.4.2.2.1 TX ................................... 8 7.4.2.2.2 A WARNING ................. 8 7.4.3 Comandi ........................................................ 8 7.4.3.1 SSB/Off .......................................... 8 7.4.3.2 HI/Off .............................................. 8 7.4.3.3 Power ON/Off ................................. 8 8 Protezioni ...................................................................................... 8 8.1 OVER Input Power ........................................... 8 8.2 OVER Temp ..................................................... 8 8.3 SWR ................................................................. 8 8.4 FILTER FAULT ................................................. 8 8.5 Error Frequency ................................................ 8 9 Garanzia ......…

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Rear Panel + - PTT ANT RTX 1 3 , 8 V d c T/R Relay Attenuator Low Pass Filter Power Amplifier PIC RTC EEPROM Display Control ON/OFF Switch I²C d a t a Bias 3,3V 5,0V Control logic supply Front panel Main 3 Costruzioni Elettroniche S.n.c HLA305 Block Diagram Fan Only HLA305V ~ internal 16MHz oscillator

Costruzioni Elettroniche S.n.c. di MARCHIONI DAVIDE e DANIELE. . Servizio Tecnico / Technical Service OFF State: (S5 Position OFF) RF enters RTX connector and is taken directly via RL1 to ANT output connector. On State: RF enters RTX connector and is sampled from T8. This sampled signal is rectified and used to switch on Tr2, (RF operated switch), that switches the relay RL1 to transmit state and switches on DC supply to the bias circuit, (see below). RF is then passed through ATT1 to reduce the input power by 4dB. Power is then split equally to the input of each push-pull amplifier section via T1. The outputs are then recombined with the output combiner T6. Each section of the amplifier consists of a Push-Pull pair, (Tr7,8 and Tr9,10), of transistors. The output is passed to a 5 pole Cauer output filter for each band, (from L9 to L20). The output then passes through the directional coupler (T7) where forward and reflected power is sampled. The RF output then passes via RL1 to the ANT output connector. If the external PTT connector, is utilized and the amplifier in switched on, (S5 ON), the amplifier may be manually or automatically switched (by the drive radio or manually by user) to transmission state by the grounding of this connector. Bias Circuit: This consists of IC10 and associated components. It provides a stabilized and temperature compensated output. Temperature compensation is taken from D12 positioned on the case of TR10. Bias voltage is adjusted via Trim 3 to preset quiescent collector current . Microprocessor: IC3 (PIC18F46K20) operates on its internally generated clock (16MHz) and receives a 3,3VDC regulated supply from IC5. The MCU monitors input power, output power, input current, reflected power via the ADC inputs from the sample and hold circuit IC4,IC12 and heat-sink temperature from NTC 1. The MCU controls the operation of the front panel mounted LCD display and adjusts the temperature controlled speed of the heat-sink mounted cooling fans if fitted. The MCU is also used to block the operation of the amplifier if any of the input signals are outside of preset limits. For example; Excessive input power, Excessive Load VSWR, Excessive temperature and out of frequency range. The amplifier is shutdown by disabling the bias supply and opening both RL1 relay to bypass the amplifier. The error is signaled by a message on the display for the corresponding error an audible error tone via B1 and illumination of the warning LED (LED19), on the front panel. The amplifier must be reset by a power cycle to resume operation. Tr5 buffers the MCU output for fan control, buzzer signal to B1 and Bias/Relay cut off via Tr3 which latches on pulling the relay and bias supply switching transistor input (Tr2), to ground disabling the amplifier. The MCU may receive updated firmware by either connection of the corresponding in circuit programmer via J2 or via Conn3 with a Personal Computer and associated boot loader application via serial interface and an external RS232 level converter. Data 25/07/14 Pagina 1 di 2 Object: HLA 305 Overview of circuit operation. Input power: T8 and associated components sample the incoming RF and generate a DC voltage from IC9 that is passed to the sample and hold circuit IC4,IC12. Output Power: Is sampled from the directional coupler (T7) DC output is then passed to the sample and hold circuit (IC4, IC12) Load VSWR: Reflected power sampled from the directional coupler (T7) DC output is then passed to the sample and hold circuit (IC4,IC12). VSWR is calculated within the MCU. Heatsink Temperature: NTC1 provides the temperature signal connected directly to the MCU (IC3). DC Power connector Conn1: +13.6VDC supply is connected via Conn1. Reverse polarity protection is provided by D29,30&31 and the input is fused with FUSE5,6&7, (max 45A input). The fused input supply is connected directly to the Collector of TR7,8,9&10 via suitable RF chokes L7,8,28&29. A switched supply is taken via the front panel switch S5 to provide DC supply to the RF relay RL1 the bias supply, MCU supply and associated ancillary circuits. With S5 in the OFF position the amplifier will not operate and if connected into the RF line will simply bypass the RF via the two rear connectors RTX and ANT. Front Panel: This contains S5 main ON/OFF switch, as mentioned above, S7 SSB/AM switch. S7 set to SSB adds an additional 1-2second delay to the release time of RL1 when the RF signal is zero to avoid relay chatter in single sideband (no RF carrier) voice transmissions. S6 switch provides to set operative band or automatic mode. S8 operate on input attenuator. LCD Display, 2x16 line display which provides user information about current status and temperature. The LCD display is also used to indicate any of the error conditions, Excessive input >15W, Excessive load VSWR >2.5, Excessive heat-sink temperature. Data 25/07/14 Pagina 2 di 2

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HL305V CONNECTION AND TUNE-UP PROCEDURE The HLA305V power amplifier is designed to be connected by ANT output connector to the 50 Ohm antenna of type expected for the wavelength to be used. The operation of HLA305V begins when the frequency and power on signal available on INPUT connector are inside the specification and threshold expected. the choice of using frequency band can be perform by selector on front side of equipments. This can be done between 6 defined bands or in automatic selection. In this last way (Auto) power amplifier feels the signal frequency present on INPUT connector and switch on the correct functional band. Signal input on RX connector must be provided from external RF source that has an output power maximum of 10Watt. HLA305V has the input circuit protected for a power input maximum of 30Watt, exceed this power value could mean damage the device. HLA305V must be powered by external supply provided by battery or AC/DC converter by POWER IN terminal put on frontal side of equipment. Since the HLA305V have a 200W maximum output power, external power source must be able to provide this current, typically no higher than 45 Amps to guarantee a correct function of power amplifier. POWER IN terminal is protected in case of application of reversed polarity by internal circuitry.

PRIMA RICERCA & SVILUPPO S.r.l. Sede operativa e Laboratori di prova / Headquarter and Testing lab : Via Campagna, 92 – I-22020 FALOPPIO (CO) Tel. +39 031 3500 011 – Fax +39 031 9913 09 – [email protected] – www.primaricerca.it RAPPORTO DI PROVA / TEST REPORT Rif./Ref.No. FCCTR_140655A-2 Data / Date: 01/10/2014 Pagine / Pages : 63 Scopo delle prove /Test object : Prove di tipo in accordo a / Type test acccording to: FCC Cfr 47 Parts 2.815, 2.1033, 2.1046, 2.1053 Parts 97.305, 97.307 (d) (e), 97.313, 97.315, 97.317 Richiedente / Applicant : RM Costruzioni elettroniche S.r.l. Via IV Novembre, 42 – 40050 Ponte della Venturina – BO – ITALY Tel. +39 0534 60460 Persona di riferimento / Applicant’s referee : Mr. Andrea Molinari Marchio commerciale / Trade mark : Fabbricante / Manufacturer : RM COSTRUZIONI ELETTRONICHE S.r.l. Prodotto / Product : 250W HF Linear Power Amplifier Modello / Model : HLA 305V Modello derivato/Derived Model HLA 305 Data ricevimento campioni / Date of test sample receipt: 27/05/2014 Campioni verificati / No. of tested samples 1 Data verifiche / Testing date : 27-28/05/2014 Sito di prova / Testing site : Prima Ricerca & Sviluppo Via Campagna - 92 I-22020 FALOPPIO (CO) Esito delle valutazioni / Assessment results : CONFORME / COMPLIANT Verifiche effettuate da / Verifications carried out by : Enrico BANFI Tecnico di laboratorio EMC e RADIO / EMC and RADIO Test Engineer Approvato / Approved by : Giacomo ARMELLINI Responsabile Laboratorio EMC e RADIO/ EMC and RADIO Laboratory Manager I risultati delle prove riportati nel presente rapporto di prova si riferiscono solo ai campioni esaminati./The test results reported in this test report shall refer only to the samples tested Questo Report non può essere riprodotto in modo parziale, salvo espressa autorizzazione scritta da parte del Laboratorio / This report may not be partially reproduced, except with the prior written permission of the issuing Laboratory Rapporto di prova / Test report n.FCCTR_140655A-2. Data / Date 01/10/2014 FORM_FCCTR_1 rev.1 Pagina / Page 2 of 63 CONTENUTO / TABLE OF CONTENTS 1 Release control record .............................................................................................. 2 2 TECHNICAL INFORMATION OF EQUIPMENT UNDER TEST (EUT) ....................... 3 2.1 EUT Identification EUT Identification ....................................................................... 3 2.2 EUT Technical Data ................................................................................................ 3 2.3 EUT ports identification ........................................................................................... 4 2.4 Modifications incorporated in E.U.T. ........................................................................ 4 2.5 Auxiliary equipment ................................................................................................. 4 2.6 Difference of derived model .................................................................................... 5 3 OTHER INFORMATION .............................................................................................. 6 4 OPERATING TEST MODES AND CONDITIONS ....................................................... 6 5 SUMMARY OF TEST RESULTS ................................................................................ 7 6 TEST RESULTS .......................................................................................................... 7 7 LIST OF EQUIPMENT USED .................................................................................... 63 1 RELEASE CONTROL RECORD TEST REPORT NUMBER REASON OF CHANGE DATE OF ISSUE FCCTR_140655A_0 Original release 03/06/2014 FCCTR_140655A_1 Added EUT Dimension; Corrected absorbing current 23/06/2014 FCCTR_140655A_2 Added spurious Radiated Emission 01/10/2014 Rapporto di prova / Test report n.FCCTR_140655A-2. Data / Date 01/10/2014 FORM_FCCTR_1 rev.1 Pagina / Page 3 of 63 2 TECHNICAL INFORMATION OF EQUIPMENT UNDER TEST (EUT) 2.1 EUT Identification EUT Identification DESCRIPTION : 250W HF Linear Power Amplifier TRADEMARK: MODEL: HLA 305V S/N: Prototype DERIVED MODEL HLA 305 MANUFACTURER: RM COSTRUZIONI ELETTRONICHE S.r.l. COUNTRY OF MANUFACTURER: ITALY COMPOSED BY: SINGLE EUT DIMENSIONS : H:90 X W:240 x L:440 (mm) EUT DIMENSIONS DERIVED MODEL : H:70 X W:240 x L:440 (mm) EUT STANDING: Vehicle 2.2 EUT Technical Data POWER SOURCE : EXTERNAL POWER SUPPLY NOMINAL VOLTAGE: 12-14V DC NOMINAL POWER OR ABSORBING CURRENT : Max 45A TYPICAL USAGE : Amateur Radio Rapporto di prova / Test report n.FCCTR_140655A-2. Data / Date 01/10/2014 FORM_FCCTR_1 rev.1 Pagina / Page 4 of 63 2.3 EUT ports identification This section contains descriptions of all ports, the length and the type of the cable provided by manufacturer needed for the tests. Moreover it is specified if the ports are ever or optionally connected. Port Description Connector Max cable length 1 Enclosure Metallic --- --- 2 AC mains input/output ports Port NOT present --- --- 3 DC mains input/output ports 12V --- --- 4 RF power Output Type N --- Note: During the tests all cables must be what provided the manufacturer or the same that used in the real employment of the EUT. 2.4 Modifications incorporated in E.U.T. The following items are the modifications introduced in the equipment under test: • None 2.5 Auxiliary equipment • None Rapporto di prova / Test report n.FCCTR_140655A-2. Data / Date 01/10/2014 FORM_FCCTR_1 rev.1 Pagina / Page 5 of 63 2.6 Difference of derived model The HLA 305 is a derived model of the 250W HF Linear Power Amplifier HLA 305V. (basic model) The differences declared by the manufacturer are listed in the following table (see also next photographs) Table1: Difference between basic and derived model as declared by manufacturer Basic model Derived model Difference between basic and derived model HLA 305V HLA 305 No cooling fan Rapporto di prova / Test report n.FCCTR_140655A-2. Data / Date 01/10/2014 FORM_FCCTR_1 rev.1 Pag…

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51 TSupPhotos Page 1 of 5 TSupPhotos_140655A-1 Prima Ricerca & Sviluppo S.r.l. – Capitale Sociale € 50.000 i.v. Codice Fiscale e Partita IVA 02635860139 – Uff. registro di COMO - n.REA CO270979 Sede: I-22020 Faloppio (Co) – Via Campagna, 92 – Tel +39 031.3500011 Fax +39 031.991309 www.primaricerca.it; [email protected] TEST SETUP PHOTO DOCUMENT Rif./Ref.No. FCCTR_140655A-1 Data / Date: 01/10/2014 Pagine / Pages : 5 Scopo delle prove /Test object : Prove di tipo in accordo a / Type test acccording to: FCC Cfr 47 Parts 2.815, 2.1033, 2.1046, 2.1053 Parts 97.305, 97.307 (d) (e), 97.313, 97.315, 97.317 Richiedente / Applicant : RM Costruzioni elettroniche S.r.l. Via IV Novembre, 42 – 40050 Ponte della Venturina – BO – ITALY Tel. +39 0534 60460 Persona di riferimento / Applicant’s referee : Mr. Andrea Molinari Marchio commerciale / Trade mark : Fabbricante / Manufacturer : RM COSTRUZIONI ELETTRONICHE S.r.l. Prodotto / Product : 250W HF Linear Power Amplifier Modello / Model : HLA 305V Modello derivato/Derived Model HLA 305 Data ricevimento campioni / Date of test sample receipt: 27/05/2014 Campioni verificati / No. of tested samples 1 Data verifiche / Testing date : 27-28/05/2014 – 25/09/2014 Sito di prova / Testing site : Prima Ricerca & Sviluppo Via Campagna - 92 I-22020 FALOPPIO (CO) Esito delle valutazioni / Assessment results : CONFORME / COMPLIANT Verifiche effettuate da / Verifications carried out by : Enrico BANFI Tecnico di laboratorio EMC e RADIO / EMC and RADIO Test Engineer Approvato / Approved by : Giacomo ARMELLINI Responsabile Laboratorio EMC e RADIO/ EMC and RADIO Laboratory Manager The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have be obtained. Reproduction of this Test Report, should not be reproduced, except in full, without the written authorization of the Laboratory 52 TSupPhotos Page 2 of 5 TSupPhotos_140655A-1 Prima Ricerca & Sviluppo S.r.l. – Capitale Sociale € 50.000 i.v. Codice Fiscale e Partita IVA 02635860139 – Uff. registro di COMO - n.REA CO270979 Sede: I-22020 Faloppio (Co) – Via Campagna, 92 – Tel +39 031.3500011 Fax +39 031.991309 www.primaricerca.it; [email protected] 0. CONTENTS Page 0. CONTENTS .................................................................................................................. 2 1. RELEASE CONTROL RECORD .................................................................................. 2 2. TECHNICAL INFORMATION OF EQUIPMENT UNDER TEST (EUT) ......................... 2 2.1 Identification .......................................................................................................... 2 3. PHOTOGRAPHIC SECTION ........................................................................................ 3 1. RELEASE CONTROL RECORD TEST REPORT NUMBER REASON OF CHANGE DATE OF ISSUE TSupPhotos_140655-0 Original release 03/06/2014 TSupPhotos_140655-1 Added Radiated Set-up Photos Change Conducted Set-up Photos 01/10/2014 2. TECHNICAL INFORMATION OF EQUIPMENT UNDER TEST (EUT) 2.1 Identification DESCRIPTION : 250W HF Linear Power Amplifier TRADEMARK: MODEL: HLA 305V S/N: Prototype DERIVED MODEL HLA 305 MANUFACTURER: RM COSTRUZIONI ELETTRONICHE S.r.l. COUNTRY OF MANUFACTURER: ITALY COMPOSED BY: SINGLE EUT DIMENSIONS : H:90 X W:240 x L:440 (mm) EUT DIMENSIONS DERIVED MODEL : H:70 X W:240 x L:440 (mm) EUT STANDING: Vehicle used 53 TSupPhotos Page 3 of 5 TSupPhotos_140655A-1 Prima Ricerca & Sviluppo S.r.l. – Capitale Sociale € 50.000 i.v. Codice Fiscale e Partita IVA 02635860139 – Uff. registro di COMO - n.REA CO270979 Sede: I-22020 Faloppio (Co) – Via Campagna, 92 – Tel +39 031.3500011 Fax +39 031.991309 www.primaricerca.it; [email protected] 3. PHOTOGRAPHIC SECTION PHOTO N°1 – EUT IDENTIFICATION PHOTO N°2 – EUT DERIVED MODEL IDENTIFICATION 54 TSupPhotos Page 4 of 5 TSupPhotos_140655A-1 Prima Ricerca & Sviluppo S.r.l. – Capitale Sociale € 50.000 i.v. Codice Fiscale e Partita IVA 02635860139 – Uff. registro di COMO - n.REA CO270979 Sede: I-22020 Faloppio (Co) – Via Campagna, 92 – Tel +39 031.3500011 Fax +39 031.991309 www.primaricerca.it; [email protected] PHOTOS N°3 - Conducted Test Set-up 55 TSupPhotos Page 5 of 5 TSupPhotos_140655A-1 Prima Ricerca & Sviluppo S.r.l. – Capitale Sociale € 50.000 i.v. Codice Fiscale e Partita IVA 02635860139 – Uff. registro di COMO - n.REA CO270979 Sede: I-22020 Faloppio (Co) – Via Campagna, 92 – Tel +39 031.3500011 Fax +39 031.991309 www.primaricerca.it; [email protected] PHOTOS N°4- Radiated Test Set-up