als 600s amplfier connection to the 6400M

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With the 6400M Flex, is it compatible with the ALS 600 Amplifier.  
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oldranger821 KB4OIF

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Posted 1 month ago

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Tim - W4TME, Customer Experience Manager

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Yes. Just like all the other FLEX-6000s.
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oldranger821 KB4OIF

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Thanks  Tim.  I am just getting started with flex radio's. My Buddy W9NWR up in Wis. runs a 6500.   
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Tim - W4TME, Customer Experience Manager

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Connecting the ALS-600 is not as straightforward as with other amps.  When you get ready to do it, I recommend sending a post to the Community to get information on the "best" way to do it (there are several ways to skin the ALS-600 "cat" (there is a pun in there)
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oldranger821 KB4OIF

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Thanks.  My ALS 600 does not like SWR above 1.7.    What is the ratio on the flex tuners  Is it 10 to 1 or something else.  3 to 1.
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WX7Y

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With the ALS-600 to control the Band to follow the radio you will need the MFJ ARB-704 interface and a FTDI cable ACC-USBPARALLEL  that FLEX offers with flying leads, wired as BCD into the ARB-704.

I think the FTDI serial port cable will also work but been to many years for me to remember since I used the ARB-704 and it MAY need a Null Modem adapter, run it in Kenwood Mode.

Look also for wiring up a ALS-1300 which uses the exact same wiring as the ALS-600, the ALS-606 and ALS1306 have the ARB-704 built in so may be of some help, Just no plug and Play solution you have to do a little wiring. 

The Above cables can be connected right to the back of the FLEX Radio's BUT I would recommend using a Powered USB Hub that is powered by 12V and using the Stations Power supply to take any load off of the Radio's USB ports.

Just my 2 cents 
73's
Bret
WX7Y
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oldranger821 KB4OIF

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Hi Bret.  i have an ARI-500 interface that I use with my 7300 Icom.  It may work with the flex.

John