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ALS-600/ARI-500 to Flex 6XXX Happiness
Since I couldn't find anything similar in the forum, this diagram is basically documenting the work of K1FQL and W8QB in their previous posts. I have built one and tested it with my 6600M on all amateur bands 160m-10m for auto-band switching with the ARI-500. I have no doubt that Flex will eventually offer an off-the-shelf pre-built cable someday, but until then it does make a decent DIY project should you desire the automatic switching now. While Doug used 2 D-connectors to house the interconnects - I simply put them in a small plastic box and potted them (making them inseparable).
If you need to adjust ALC for some reason then I recommend consulting the Ameritron manual. Using the Tx Gain in the DAX control panel is a handy way to arrive at the right amount of drive power - very similar to the instructions in the manual. Standard disclaimer applies; use at your own risk. If anyone sees any glaring errors, or improvements - let me know. Good luck !
Thanks to K1FQL and W8QB (and inspector Barney) for getting this solved. Original post is here: https://community.flexradio.com/flexradio/topics/connecting-an-als-600-to-a-flex-6000-series-radio
73 Jim, WQ2H

Thanks to K1FQL and W8QB (and inspector Barney) for getting this solved. Original post is here: https://community.flexradio.com/flexradio/topics/connecting-an-als-600-to-a-flex-6000-series-radio
73 Jim, WQ2H

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Comments
I'm guessing you've been using the amp and ARI....is it still working well for you?
Had to ask before I built the cable... ;->
Mike Webb
KC0YHM
The only serious issue is that I keep forgetting to turn the amp on. (....but that's nothing new)
Good luck!
73
Jim, WQ2H
P.S. - I think that's a fine looking glass of **** on your QRZ page - almost looks like our local Leviathan IPA.
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That was a very good ****...Peg and I were in Prague..a great, friendly, city.
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Perhaps a checklist for the on/off issue.... ;->
There is a document in the Flex Downloads for connecting to the ALS600S (which has the same as the ALS-1306) using CAT commands via the USB port on the rear of the radio.
https://www.flexradio.com/downloads/usb-cable-interface-guide-pdf/
Hope this helps.
https://community.flexradio.com/flexradio/topics/6000-series-and-als-1306-amp
73
Jim, WQ2H
I have a 6400 and an LDG AT-1000Proii. My understanding is that there is no working interface cable. Are you just tuning using the LDG's RF sensing function or did you find some other solution?
Thanks,
John - AA6JA
Don - kx9q
Making it, buying it, either way it's a pretty easy set-up.
Until the PGXL is ready - the ALS-600 will more then suffice. Good luck !
73
Jim, WQ2H
is this the cable you have?
you were right: the ASI 500 standby switch does nothing. I have been using it on ANT B and barefoot on ANT A so I never noticed that. The only other alternative is to turn the ALS-600 off and see if it just goes to pass through. I'm going to try that next.
Brian