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Hamtronix Elektra 2000 Instruction Manual
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ELEKTRA 2000 Hamtronix5TURNING YOUR CONTROLLER ON FOR THE FIRST TIMEPlace jumper J1 (ON). A melody should be heard if all transmitter connections were made correctly. Keyup on repeater input frequency to check if the received signal is being retransmitted. If the receiverconnections were made correctly, you should be able to hear the courtesy tone after transmitter drops. Ifyou hear no melody at power up or you can’t access the repeater receiver, remove J1 and check allconnections on the CN1.AUDIO ADJUSTSTrimpot Adjust Description Where ActVR1 RX-1 RPT RX input level Repeater audio coming from repeater receiverVR2 TX-1 RPT TX output level Repeater audio going to repeater transmitterVR3 RX-2 LINK RX input level Link audio coming from link transceiverVR4 TX-2 LINK TX output level Link audio going to link transceiverVR5 BEEP Courtesy tone/CW audio level All tones generated by microcontroller chipVR6 PLAY Voice ID playback level Voice recorded messageNote: Ideally the level of a coming signal should be retransmitted with the same level. Ask for someone to transmit atone or a DTMF tone (turn off mute function for this approach) at repeater input frequency. Using a radio withREV/MON/Reverse switch, check the AC voltage at radio speaker or discriminator output. Adjust RX-1 and TX-1 toobtain the same level.LEDSLegend Color What meansPWR Red The controller is poweredRX Green A signal is present at repeater or link receiverTX Red The repeater or link is transmittingDTMF Yellow DTMF tones presenceFAN CONTROL OUTPUTWhen the repeater transmits, this output will be on (active low) and will remain on for 2 additionalminutes after the TX drops. Use this output to control a fan relay to cool the repeater’s transmitter. Thisis an open collector output and can drive 500mA max. ID messages are not considered for fan control.AUDIO EQUALIZATIONIf you need some audio equalization, experiment with capacitors at C11 for repeater audio andC12 for link audio. A start point could be 1nF until 10uF.When getting audio from discriminator’s receiver and sending that audio directly to thetransmitter, equalization maybe unnecessary. |
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