[Elecraft] Fixed and Reproduced - Ham Radio Deluxe + KX3 Issues - Re: KX3 - ATU Disabled Problem

[Don Wilhelm]

I believe you have identified an HRD problem.  When the KXPA100 is 
enabled, the KX3 ATU is disabled.  The solution is to set the PA to OFF, 
but apparently HRD is doing that whether the KXPA100 is pesent or not.

73,
Don W3FPR

On 4/8/2014 9:36 PM, VaibhaV Sharma wrote:
> More info on this -
>
> Howard @ Elecraft Support promptly sent me the factory default config file for the radio that fixed the issue. But later, I was able to reproduce the issue and also fix without the factory configuration.
>
> I have the KX3 hooked up to Ham Radio Deluxe (latest version) with serial interface for CAT control. HRD works with the radio for the most part except I noticed this in the Radio CAT commands configuration -
>
> | Advanced: KX3     | RF power (High)     | Cmd = PC-04,  Min = 0.00, Max = 120.00,  Prefix =,  Suffix =                                                |
> | Advanced: KX3     | RF power (Low)      | Cmd = PC-04,  Min = 0.00, Max = 120.00,  Prefix =,  Suffix =                                                |
>
> Notice the “Max = 120” part? Those values show up on HRD UI as -
>
> RF Power Low = 12
> RF Power High = 120
>
> There are two RF power adjustment bard in HRD UI. The “RF Power Low” slider works OK (has other issues) with the KX3 12 watt limit. But even touching the “RF Power High” slider causes the KX3 to switch RF power value to 110+ Watts (Yes, without a KXPA100, I wish).
>
> Once that happens, the ATU disengages and the radio refuses to transmit.
>
> The easy way to fix this is to touch the “RF Power Low” slider and the radio switches back to under 12W and everything goes back to normal. Shouldn’t the KX3 itself handle this gracefully without tripping over the ATU with bunch of errors?
>
> I am a brand new HRD user and still getting used to the UI. I reported a major security issue to them a few days ago and will report this issue to HRD team as well.
>
> Comments / other ideas welcome.
>
> Thanks,
>
> —
> VaibhaV Sharma
> W7VAI
>
>