[Elecraft] K3: two problems

[Dr. Werner Furlan]

today I observed a problem with my K3 ATU.

on some bands the ATU does not find a fix.
I connected the transceiver to a 50 ohm 100 Watt dummy load.

I tried on 

1850 - no fix - rattle rattle - display says: - . - with Xmit: 1.0 - 1
3700 - quick fix 1.0 - 1
5330 - no fix  but when I press transmit it shows 1.2 - 1  1.0 ATU in bypass
7080 - no fix   with xmit 1.0 - 1
10142 - no fix  with xmit 1.4 - 1 (tuner inline - 1.0 - 1 tuner bypass)
14142 - quick fix 1.0 - 1
18068 - quick fix 1.0 - 1
21000 - quick fix 1.0 - 1
24890 - quick fix 1.0 - 1
28000 - quick fix 1.0 - 1
50750 - quick fix 1.0 - 1



second problem: 
I have the impression that the switch from Mic high and low level does not 
work anymore. I observed a low power output (about 40W max) with Mic 
high sensitivity, and no change when I switch to low. Front and Back panel is 
the same.

I hope I can get a hint where to look. 


73! de Werner OE9FWV

-- 
Failing to plan is planning to fail.


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Elecraft K2 #5203