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RE: : KRX3 live

Posted by Joe Subich, W4TV-3 on Sep 18, 2008; 2:11pm
URL: http://elecraft.85.s1.nabble.com/KRX3-live-tp1097872p1098253.html


All very true ...

> But the most unfriendly step was the
> last one, plugging the KRX3 module into the sub-in and
> sub-out connectors and managing the TMP coax. Plugging the
> Front panel into the main board was for me much easier than
> when assembling the K3 (experience curve impact, probably)

Partly because some of the TMP cables - particularly those
from the reference boards to the synthesizers - are longer
than necessary and loop into the connector area.  20 mm long
cables would be better than the current 30 mm cables.

> if the sub-receiver is dumb, it's because some parameters
> have not been properly set (crystal filter in my case),

Yes!  What is the proper way to set the filter parameters?
I resorted to the K3 Utility and had to set the gain for
the CW filter blind since I could not use the S-meter.  

73,

   ... Joe, W4TV
 


> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Raymond METZGER
> Sent: Thursday, September 18, 2008 6:27 AM
> To: 'AD6XY'
> Cc: [hidden email]; 'f8crh'
> Subject: [Elecraft] [K3] : KRX3 live
>
>
> Hi Mike and Elecrafters,
>
> I started assembling the KRX3 yesterday at 2 p.m. and
> switched the K3 on at 9 p.m. after having also installed
> additional crystal filters (Better to do it at the same time
> rather than disassembling the rig once again).
>
> I'm impressed by those who got it in less than three hours !
>
> Although my K3 is # 615, I had to solder the additional
> resistor in parallel with R91 (My RF board is Rev A). W4 was
> a soldered jumper, not easily accessible, even after taking
> the KBPF3 board away. But the most unfriendly step was the
> last one, plugging the KRX3 module into the sub-in and
> sub-out connectors and managing the TMP coax. Plugging the
> Front panel into the main board was for me much easier than
> when assembling the K3 (experience curve impact, probably)
>
> When you switch your rig on and nothing works, don't panic
> and take a breath
> : if the main receiver is dumb, it's because the RF gain pot
> has been inadvertently turned fully counterclockwise during
> the surgery, if the sub-receiver is dumb, it's because some
> parameters have not been properly set (crystal filter in my
> case), and if you get an ERR PL2 message, it's because you
> need first to upgrade the software and secondly to make a
> synthesizer calibration !  Finally my KRX3 is working FB and
> there was no problem with the assembling !
>
> Raymond, F4FNT
> K3/100 # 615, K2/100 # 5,636
>
>
>
>
>
>
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