Yes there is, but it doesn't work because the K3 (not K3S) firmware is not recognizing the KXV3B module or at least not recognizing some parts of it. Some of the hardware apparently works for some people and not for others. I'm thinking this may depend on the age of the K3? Mine is #5027 just for reference.

The IF output to the P3 works just fine for me, the RX-IN works and I don't have the internal 2 meter transverter or any external transverters installed. Also, the 1 milliwat transmitter gain calibration completed with no problem according to the utility program. I can not, however enable Preamp 2 in the menu and I get ERR XV3 every time the K3 is turned on.

I have removed and re-installed the KXV3B module 3 times, checked for proper seating of the connector pins and checked to ensure they were in the right socket positions all with the exact same results. I even re-downloaded and re-installed the version 5.26 beta firmware to rule out a download glitch in the zip file.

We'll most likely have to wait for the guys to get back from Pacific Con and get to work Monday for them to address this unless the firmware engineer for the XV3 module happens to check the reflector or the "support at elecraft" email and is able to address the situation.

Jim - W0EB

------ Original Message ------
From: "Guy Olinger K2AV" <[email protected]>
To: "Jim Sheldon" <[email protected]>
Cc: "Sebastian" <[email protected]>; "Elecraft" <[email protected]>
Sent: 6/6/2015 3:41:40 PM
Subject: Re: [Elecraft] ERR XV3

I'm not at home to check, but isn't there a CONFIG: setting required for that? 73, Guy K2AV

On Saturday, June 6, 2015, Jim Sheldon <[email protected]> wrote:
I have exactly the same problem here. My K3 doesn't recognize the KXV3B. I triple checked the install. Funny, but the RX-IN works and my original VLF mod works fine and it depends on the XV3's RX-IN jack so contrary to my thinking I have a defective module, I suspect a problem in FW beta 5.26 that doesn't show up on the factory lab's K3's. Mine's #5027.

Jim, W0EB

Sent from my iPad

> On Jun 6, 2015, at 12:23 PM, Sebastian <[email protected]> wrote:
>
> I received today the new KXV3B module, and installed it in my K3 serial number 05864, using K3 Utility Revision 1.15.5.1.
>
> I also updated my K3 firmware, to revision 05.26. I completed the Milliwatt TX Gain Calibration (since I also have an XV222). For good measure, I also completed both the 5 and 50 watt calibration, using an old Heathkit Cantenna. All of those completed with no errors.
>
> However, upon powering up the K3, I see the ‘ERR XV3’ message.
>
> I have twice removed and reinstalled the module, everything visually appears to be ok. Since I had the original KXV3 module, I did not open the bottom of the case, and I used the same TMP cable.
>
> Using the menu settings, I show that PREAMP2 is off, it cannot be changed. KXV3 is ‘nor'; I can however cycle through ’not inSt’ and ’tESt’. ATTEN is 10 db and also cannot be changed.
>
> What puzzles me is that my 222 MHz transverter appears to be functioning, which of course is installed to the KXV3B module. And the IF Output port is functioning since I have it installed with an external SDR (Elad FDM-S1). Additionally, while I do not have a different antenna for receive, the RX ANT switch appears to be working, as pressing it heavily attenuates and/or removes signals completely.
>
> Since it is the weekend and I won’t be able to reach Elecraft, I would appreciate any suggestions, or perhaps something that I may have missed that I did not describe above.
>
> 73 de Sebastian, W4AS
>
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