ALS-600-LPF User Manual
Contents
1. Status LED pattern Description message RF input carrier found without asserting PTT while amplifier in OPERATE state Amplifier is switched temporary in BYPASS 00006000 NoPTT until carrier is stopped for gt 3sec or PTT is activated short blink PTT line will be disabled when temperature switch is OPEN Used while tuning antenna Band filters will be always switched based on measured frequency 006000 PINBi PIN diodes bias 300V was low aS Check the 50V 25A fuse on the back of ALS600PS two blinks ecececeo SWR Reflected output power above trip point fast blink PASWR PA module reflected power above trip point 000060000 OverHeat Temperature is above trip point three blinks 00000000 OverDrive Forward output power above trip point slow blink Table 1 Notes O LEDON O LED OFF ALS 600 LPF User Manual 3 Rev C 08 Nov 2013 _http www af6sa com Serial Port RS 232 compatible serial port connection is not mandatory for regular use This optional connection can provide additional functionality v Helpful tool for diagnostic and changing internal parameters v Firmware upgrades v Remote monitoring and control LCD panel or PC program showing Output Reflected Power Temperature and Amplifier Status can be used o Ac DB9 Male Connector O om Use NULL modem cable O lt to connect to PC Os ALS 600 LPF O GND QO RS 232 Wiring diagram Terminal emulator program such2. gt Amplifier ADC ADC ADC ADC ADC Time elapsed STATUS FLAGS FwdV Refv SWRV TV PINV x 0 3mS S0001 0002 1 2 1 220 1 10925 gt sta v Standby FwdP OW SWR 1 00 T 34 8C gt oper S0011 000A 1 2 T 222 1 8880 S 0021 0003 1 2 Ta 222 1 8826 S 0071 0013 26 10 994 225 338 42 S0034 0003 734 231 665 223 264 58 S0044 0003 657 192 2 223 262 31839 S0014 0003 645 189 1 223 1 64 S0024 0003 1 2 1 224 1 31891 S0034 0003 707 364 709 225 333 45 05C4 0003 630 323 675 225 277 395 SO5E4 0003 131 66 lo 225 1 9036 0514 0003 120 60 I 225 1 301 sta v FAULT gt SWR gt S0024 0003 1 2 1 209 1 10977 S0034 0003 813 44 542 210 326 45 S0044 0003 681 32 2 209 283 17651 S0014 0003 668 32 1 209 1 61 To cancel debugging press CTRL X ALS 600 LPF User Manual 11 Rev C 08 Nov 2013 lt Standby on band 1 lt operate state lt PTT activated lt 13mS later freq is determined lt 17mS Txing on band 4 full power lt 10 sec later PTT released lt Ready on band 4 lt 10 sec later PTT is activated lt TXing on band 4 full power lt 118ms later found SWR is to high lt PTT was released for gt 3sec lt Ready after SWR fault for next PTT lt check status verbose lt PTT activated lt 13mS Full power TXing on band 4 lt 5 sec later PTT released http www af6sa com Block Diagram CN1 120 110 100 90 80 70 60 50 40 30 20 FAN FWD REF BYPASS SWR BRIDGE RS 232 B
3. as HyperTeminal can be used to connect with ALS 600 amplifier Default settings are 19200 baud 8bits no parity 1 stop bit no flow control Start HyperTerminal program and configure a new serial port connection aixi Si Connect To 2 x E New Connection COM Properties 21 gt x Bq ALS600 z Enter a name and choose an icon for the conne Port Settings Name faso o Enter details for the phone number thai Country region United States 1 Bits per second 19200 z Gaa Databis f8 a Phone number Parity None v Connect using EAN Stop bits fi v OK Elow control r Restore Defaults Cancel Apply ALS 600 LPF User Manual 4 Rev C 08 Nov 2013 http www af6sa com Commands begin on a new line and can have up to 9 parameters separated with a comma Parameters in square brackets are optional and all next parameters need to be entered Left Right arrows Backspace and Del keyboard buttons can be used for line editing CTRL X will abort and clear entire line Commands are executed by pressing Enter key Examples in this manual will be printed in italic typeface Enter key will be represented with symbol Following example shows how to check the firmware version Comments are added in this manual for clarification on some lines after lt symbol gt ver lt send command ver ALS 600 LPF 1 SN 001001 VER 1 3 lt shows response from ALS 600 gt lt if enabled prompt is returne
4. ALS 600 LPF User Manual ALS 600 LPF User Manual 1 Rev C 08 Nov 2013 http www af6sa com Introduction ALS 600 LPF kit is a replacement for ALS600FB Output Filter board in Ameritron ALS 600 amplifiers Features vy Automatic band change based on TX frequency v Fast and quiet PIN diode QSK RX TX switch v Temperature controlled FAN for quiet operation v Automatic fault recovery vy RS 232 serial port for remote panel PC control and firmware upgrade Operation Amplifier s Standby Operate mode can be selected with the front panel switch or command thru RS 232 port Fault recovery is automatic just release PTT for more than 3 sec and try again Band Change Amplifier will monitor the exciter transmitting frequency and switch band low pass filters as needed Quick and robust algorithm can start band change in less than 2 milliseconds when transmitting in SSB or CW mode To prevent relays hot switching power module is disabled during band changes Optionally band low pass filter can be selected from RS 232 port ALS 600 LPF User Manual 2 Rev C 08 Nov 2013 _http www af6sa com Fault Conditions and Recovery When a fault condition occurs the amplifier is bypassed and LOAD FAULT Led will blink a specific pattern to indicate the fault reason There is no special Operator action required just release PTT for more than 3 sec and the next start of transmission will try to recover
5. d on new line ojx Fle Edit View Cal Transfer Help gt ver ALS 600 LPF 1 SN 004660 VER 1 3 gt sta v Standby FwdP OW SWR 1 00 T 26 3C 1 RefV 1 SWRV 6 TV 187 PINV 0 FwdP OW SWR 1 00 T 26 3C FwdP 76H SWR 1 00 T 26 6C _ Connected 0 05 28 Auto detect 19200 8 N 1 SCROLL caps NUM Capture Print echo It is very helpful to have a text file open in NotePad or other text editor to copy and paste command lines for backup purposes Logging to file functionality can be used for backup Factory default settings are shown in brackets ALS 600 LPF User Manual 5 Rev C 08 Nov 2013 http www af6sa com Fan Display Set Command Cooling fan speed is regulated by changing the applied voltage from 4V 0 to 12V 100 When measured heat sink temperature is below or equal to LowC fan speed will be set to Low When temperature is between LowC and HIC points fan speed will vary proportionately between Low and Hi settings If temperature is higher than HiC point fan speed will be set to Hi While transmitting fan speed will be always higher than TX setting fan 0 1008 amp fan set LowC Low HiC Hi TX3 Parameters Factory defaults LowC low temperature point 30C Low low fan speed 30 HiC high temperature point 50C Hi high fan speed 100 TX TXing fan minimum speed 50 examples gt fang amp lt display fan current speed and amplifier temp
6. erature 37 T 32 30 gt gt fan 704 lt set speed manually to 70 gt fan 04 lt resume to automatic fan temperature control gt fan set 30 40 80 100 702 lt change fan settings gt gt fan set lt display current fan settings fan set 30 40 80 100 702 lt copy this line and paste it in text editor for backup gt Use nvmem save command to make any changes permanent Band Display Set Command Displays last measured carrier frequency and selected band number Switch Low pass filter without sending carrier band 1 6 2 examples gt bandg lt display measured frequency and LP filter selected Freq 14176KHz Band 4 gt gt band 12 lt switch to Low pass filter 1 160M band gt ALS 600 LPF User Manual 6 Rev C 08 Nov 2013 _http www af6sa com Baud Rate Set Command Changes the serial port baud rate immediately Use nvmem save command to make it permanent Available serial baud rates are 9600 19200 57600 examples gt baud 57600 Switch to 57600 lt change your terminal to new baud rate Standby command Turn the amplifier in Standby bypass mode examples gt stbyd gt Operate command Turn the amplifier in Operate mode examples gt operg gt Note After power up Amplifier mode is determined by Standby Operate switch state Save to NVMEM Restore defaults command After power up the amplifier will read operational and calibration parameters form N
7. n constants adc cal 1250 1100 3000 lt copy this line for backup gt gt adc lt display ADC readings FwdV 1 RefV 1 SWRV 1 TV 211 PINV 1 lt raw 10bit 0 1023 gt gt adc amp FwdV 826 RefV 116 SWRV 463 TV 220 PINV 259 lt TXing gt PINV A D converter is used internally to generate and regulate the PIN diodes bias voltage TV A D converter is sampling the temperature sensor and it is converted to deg Celsius Use nvmem save command to make any changes permanent ALS 600 LPF User Manual 8 Rev C 08 Nov 2013 _http www af6sa com Fault Trip Point Set Command Set display amplifier protection trip points FwdP and RefP are measured at amplifier output after peak detectors same as cross needle meters SWRP is measured between PA module and Low pass filters trip FwdP RevP SWRP TC AZ Parameters Factory defaults FwdP max forward power 100 800W 650W RevP max reflected power 10 100W 80W SWR P max reflected power 10 200W at PA module 160W TC max temperature 0C 90C 80C examples gt trip 650 75 90 80 lt change trip points settings gt gt trip lt display current trip points settings trip 650 75 90 80 lt copy this line and paste it in text editor for backup gt Use nvmem save command to make any changes permanent Status Command Display Amplifier Status word Forward power Reflected power PA module Reflected power and tempera
8. on Volatile Memory NVMEM and copies them to RAM Any changes will modify only the values stored in RAM Save RAM to NVMEM to make changes permanent If you want to go back to previously stored values just restart the amplifier examples gt nvmem save lt save all parameters to NVRAM Write Successful gt gt nvmem default lt restore factory defaults to NVRAM Factory defaults restored gt ALS 600 LPF User Manual 7 Rev C 08 Nov 2013 _http www af6sa com ADC Display Calibration Command Three 10bit Analog to Digital converters are used to measure power and protect the amplifier Output power FwdV and Reflected power RefV are measuring the voltage coming from the output RF bridge and peak detectors same as cross needle meters SWRV is measuring the reflected power voltage between PA module and switched Low pass filters To convert measured voltages to power readings the firmware uses formula 1 1 FwdP FwdV FwdV Fwdcal Calibration of each power reading can be done by adjusting each calibration constant between 1 to 65535 adc cal Fwdcal Refcal SWRcal Parameters Factory defaults Fwdcal forward power calibration constant 1100 Refcal reflected power calibration constant 1100 SWkRcal PA module reflected power calibration constant 5600 examples gt adc cal 1250 1100 3000 lt set calibration constants gt gt adc cal lt display calibratio
9. pply input less 1 5V drop out Current 1A Max ALS 600 LPF User Manual 12 Rev C 08 Nov 2013 ANT 48V Amplifier Module 600W http www af6sa com
10. ture Information can be displayed continuously 5 times per sec for monitoring sta v fel sta dg Parameters v display status in verbose format c display continuously on same line until CTRL X is send d display line each time Amplifier Status word was changed ALS 600 LPF User Manual 9 Rev C 08 Nov 2013 _http www af6sa com Returned Amplifier Status 16bit word description 0fsb b 4bit selected band 0 gt band is not determent 1 gt 160M 2 gt 80M 3 gt 40M 4 gt 20M 5 gt 15M 6 gt 10M s 4bit Amplifier state machine 0 gt Bypassed 1 gt Ready 3 gt TXing 9 gt NoPTTCAR C F gt Fault condition states f 4bit Fault codes 0 gt no Fault 1 gt NoPTT 2 gt PINBias 3 gt PINBiasRamp 4 gt PASWR 5 gt SWR 6 gt OverDrive 7 gt OverHeat examples gt sta lt display status in HEX 0034 FwdP 614W RevP 11W SWRP 36W T 34 6C lt TXing on 20M gt sta v lt verbose TXing FwdP 621W SWR 1 31 T 34 6C gt sta v Standby FwdP OW SWR 1 00 T 32 3C gt gt sta vd Ready FwdP OW SWR 1 00 T 32 3C gt gt sta vg FAULT gt SWR lt fault message details can be found in Table 1 gt ALS 600 LPF User Manual 10 Rev C 08 Nov 2013 _http www af6sa com Display a line with debugging information when Amplifier Status was changed lt display status flags ADC and time elapsed from previous status change gt sta d
11. uffers 12V 12V gt FAN CONTROL PRA met FREQ TX 12V gt PIN diode 300V PA OSk PINBias T Perser PBIAS BIASP Bias 12V Band Switch Low Pass Filters f data 10 20 O TEMP CN1 Pinout ALS 600 LPF PIN SIGNAL DESCRIPTION 1 12V Power supply input 10VDC to 16VDC Current RX STBY 0 3A TX 0 6A Max without Fan 2 GND Power supply return Chassis ground 3 12V Power supply input 10VDC to 16VDC Current 0 01A Used only by RS 232 port 4 5V Regulated power supply output 5V 0 1A Max Used for LOAD FAULT Led 5 LEDSWR TTL output with 470 Ohm in series Controls the LOAD FAULT Led mounted on the front panel 6 OPER Operate Standby Input wired to front panel OPERATE switch Standby Open GND Operate wired to 12V 7 PTT PTT Input Switch to TX when grounded Wired to PTT jack on the back panel 8 BIASP 12VDC 0 05A Max power source for Amplifier Module bias It is wired to 8V regulator input located on ALC board 9 GND Power supply return Chassis ground 10 FWDV Forward Power Analog input wired to ALC board 11 REFV Reflected power Analog input wired to ALC board 12 N C Not connected FAN Pinout PIN SIGNAL DESCRIPTION 1 GND Power supply return Chassis ground 2 FAN Fan power supply regulated output 4V up to 12V power su
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