XV144 Transverter and K2

[Elecraft mailing list]

Hello,

I have recently bought a XV144 transverter, which was used on another non Elecraft Rig. I followed the setup for use wit a KS however did not notice that thee was a soldered jumper on J7. Looking further into the manual I see that using the K2 wit the Transverter J7 shorted can cause damage. I currently have no output from the transverter. Does anyon know what to look for.

Cheers,

Richard Hubbard (M0OIO)
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[Don Wilhelm]

Richard,

The components that could be damaged with J7 in place are a few in the
automatic power on circuits.  Move the jumper to J8 and with the power
switch in the non-activated position and the K2 to XV control cable in
place, see if it turns on when you select the 144 MHz band.  If so, no
harm done.

The failure to transmit is an entirely different problem.  Check all the
jumpers that relate to your IF interface (single cable or split RX/TX)
and the jumpers for you chosen power level - then try it.

If you still do not get any power output, tell us how you have the TX/RX
cables configured, you drive power level, and what you are using to
determine power output level (into a good VHF dummy load).

Do you have an oscilloscope with a 10X probe that can work well at 28
MHz or an RF Probe?  You will need one or the other to do much
troubleshooting.

73,
Don W3FPR

On 8/6/2020 2:30 PM, richard hubbard via Elecraft wrote:
> Hello,
>
> I have recently bought a XV144 transverter, which was used on another non Elecraft Rig. I followed the setup for use wit a KS however did not notice that thee was a soldered jumper on J7. Looking further into the manual I see that using the K2 wit the Transverter J7 shorted can cause damage. I currently have no output from the transverter. Does anyon know what to look for.
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[Elecraft mailing list]

Hello Don,

Sorry for the late reply. Thanks for the guidance I found that I had one of the jumpers in the wrong position, my eye sight is not what it used to be.

I have now run int an info 80 error which only occurs when the transverter control cable is connected. When I disconnect the transverter the error clears after I cycle the power, however the K2 does not see the KPA100 which is in a separate EC2 enclosure with the ATU.  Within the K2 menu whilst I can select PORT ON;  PA and ATU are blank (three dashes). When I power up the K2 the relays can be herd to click in, as per appendix E in the K2 manual.  Do you think that this points to an issue with the Aux bus, I have tried a had reset however the PA and ATU are still not seen?

Thank you.

Best regards,

Richard Hubbard.

> On 6 Aug 2020, at 20:48, Don Wilhelm <[hidden email]> wrote:
>
> Richard,
>
> The components that could be damaged with J7 in place are a few in the automatic power on circuits.  Move the jumper to J8 and with the power switch in the non-activated position and the K2 to XV control cable in place, see if it turns on when you select the 144 MHz band.  If so, no harm done.
>
> The failure to transmit is an entirely different problem.  Check all the jumpers that relate to your IF interface (single cable or split RX/TX) and the jumpers for you chosen power level - then try it.
>
> If you still do not get any power output, tell us how you have the TX/RX cables configured, you drive power level, and what you are using to determine power output level (into a good VHF dummy load).
>
> Do you have an oscilloscope with a 10X probe that can work well at 28 MHz or an RF Probe?  You will need one or the other to do much troubleshooting.
>
> 73,
> Don W3FPR
>
> On 8/6/2020 2:30 PM, richard hubbard via Elecraft wrote:
>> Hello,
>> I have recently bought a XV144 transverter, which was used on another non Elecraft Rig. I followed the setup for use wit a KS however did not notice that thee was a soldered jumper on J7. Looking further into the manual I see that using the K2 wit the Transverter J7 shorted can cause damage. I currently have no output from the transverter. Does anyon know what to look for.

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