[TenTec] Argonaut II digital interfacing?

[waltk8cv4612amos at att.net]

I thought ho-hum, stupid question, and then I looked at the picture and sure 
enough the band change knob IS GONE ! Well, that's a different kettle of 
fish Ollie ! It is NOT a 50 watt amp any more but a 45 watt amp now. :-) 
HL-45B ! So, what did they do ? Must have put in a frequency counter and 
relays ? I think a call to HRO and a little talk with the salesman on the 
phone should clear up your question. Mine is an older HL-50B and it does put 
out around 45 watts but has a KNOB on the front panel for band switching. 
Mine senses RF and switches from receive to transmit with a Argo II but not 
bands and if you don't switch bands on the amp and do on the rig it FAULTS 
and light a red light on the front panel and will not put out RF until you 
change the band switch! So, the one they are selling as a HL-45B is 
different from the older model in some way, maybe a frequency counter inside 
the amp and microprocessor to switch relays for different bands or just a 
cord to the FT-817 to get different voltage outputs for different bands ? 
Alas, I don't know and probably HRO would ! It is a nice amp and almost 
mandatory in this rotten sun spot low that is going on and on !

Walt K8CV Royal Oak, MI.


----- Original Message ----- 
From: "Steve Berg" <wa9jml at tbc.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Friday, May 08, 2009 11:37 PM
Subject: Re: [TenTec] Argonaut II digital interfacing?


> Here is a question for the more digitally inclined folks on this list.
> I have been looking at the new 50 watt Tokyo Hy-Power amplifier and
> wonder if there is any way to use the digital port on the  Argonaut II
> to activate the automatic band switching on this neat little amplifier?
>
> The amp is designed for interface to some newer Japanese QRP rigs.
>
> Any ideas?
>
> Thanks.
>
> Steve WA9JML
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