(Dan Tassell, KC5PCB, can explain how to do this.) And if one so desires, their ALC can be used with SPE for an "overdrive protection", if properly set It should be noted that hundreds of Elecraft users are successfully using SPE amplifiers. And that is okay, as they have their own system. Some interesting information is that Elecraft elected to NOT use the " standard ALC This ALC protocol has been working fine for over 14 years. The SPE automatically knows that and adjusts to that range, from zero voltage.not from -12 volts. If your ALC range is 0 to -4 Vdc, (or -4 to 0 Vdc). (or -12 to 0 volts if you prefer to state it that way.) Therefore, the voltage will not exceed the "range of the transceiver's ALC range". The SPE ALC voltages will work with any tranceiver's whose standard The SPE ALC voltage range is automatically set to the "voltage range", for the transceiver that it is connected to. Here is the correct info for the ALC voltage ranges sent from all SPE amplifier models to any transceiver that responds to ALC control:(and most all modern day transceivers respond to ALC control and can be connected to do so.) And the ALC voltage will NOT be incorrect for your transceiver's range. The SPE ALC control voltage is NOT just "plain -12 to 0 volts". Icom ALC Input is -4V to 0V, but SPE 1.5K-FA ALC voltage output may be -11V to 0V. If it makes you feel better to set it to a lower value, that is up I would suggest leaving it all the way up. I must say that this setup hasĪlso, adjusting your transceiver's ALC control "should not be SPE has aīuilt-in, manually preset system. One other company is Flex, as it's ALC protocol is somewhat So desires, their ALC can be used with SPE for an "overdrive It should be noted that hundreds ofĮlecraft users are successfully using SPE amplifiers. Some interesting information is that Elecraft elected to NOT use This ALC protocol has been working fine for over then the SPE automatically knows that andĪdjusts to that range, from zero voltage.not from Way.) Therefore, the voltage will not exceed the "range of the (or -12 to 0 volts if you prefer to state it that The SPE ALC voltages will work with any tranceiver's whose standard "ALC range" is between "0 and "voltage range", for the transceiver that it is connected to. The SPE ALC voltage range is automatically set to the To ALC control and can be connected to do so.) To ALC control:(and most all modern day transceivers respond Here is the correct info for the ALC voltage ranges sentįrom all SPE amplifier models to any transceiver that responds The SPE ALC control voltage is NOT just "plain -12 to 0 volts".Īnd the ALC voltage will NOT be incorrect for your transceiver's for this comment:ġ.5K-FA ALC voltage output may be -11V to 0V.
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