[Elecraft] [K3] : KRX3 live

[Joe Subich, W4TV]

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: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Raymond METZGER
> Sent: Thursday, September 18, 2008 6:27 AM
> To: 'AD6XY'
> Cc: elecraft at mailman.qth.net; '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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