[Elecraft] Using K2 with broken D1 on the K60XV

[Michael Jensen]

Hi Don

Thanks for confirming me on the use with the broken pin Diode.

For the issue with S meter i did not explain the case very good. The issue I 
see is in RX not in TX . I have not testede the K60XV in TX yet. But in RX 
the S meter show full signal (all bar light). This do only happen in the 
transverter band on 10M or even on the 60M everything looks ok. Nothing are 
connected to the low power in/out on the K2.

Br.

Michael


---- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: <mj at the-jensen-dk.net>; "'Elecraft Reflector'" 
<elecraft at mailman.qth.net>
Sent: Thursday, January 05, 2006 8:58 PM
Subject: RE: [Elecraft] Using K2 with broken D1 on the K60XV


> Michael,
>
> You are correct - the PIN doides D1 and D2 form the T/R switch for the low
> power output.
>
> If you do not use the low power output, you can operate the K2 from the
> normal BNC antenna jack as usual without that diode installed.
>
> The number of bars on the K2 LED during transmit indicate the approximate
> power output of the K2 - if you had the LED Display set for RF, the Low
> power output set for 1 mW maximum, and the requested power set for 1 mW, 
> the
> expected result would be all bars lighted.
>
> If you dialed only .5 mW on the K2 power request knob, one would expect 
> only
> 5 of the bars lighted.  If you have all bars lighted no matter what the
> power request setting, you should look into the circuits at the lower 
> right
> quadrant of the K60XV schematic (labeled XVTR ALC) - you will find the
> problem with that portion of the circuit.  I would need more detail to
> provide additional information.
>
> 73,
> Don W3FPR
>
>> -----Original Message-----
>>
>>      During  last night trying to finish op the asssembly of the K60XV i
>>      faced=a  issue,  that during the test on the transverter band (50
>>      MHz)   the  S=meter was showing full signal at all times. Only on
>>      the transverter band n=t on 60M or any other band. In desperation
>>      i   was  looking  for  bad  soldering=pushing  a  little  to  the
>>      components.  I  did  hit D1, the pind diode that ofca=se broke. I
>>      have  ofcause  placed an order to replace this diode, but it wil=
>>      not  arrive here for the weekend. Beeing a lazzy basterd, i like to
>>      use th= K2 for the weekend, but i do not like to remove the K60XV
>>      and put back th= components. Now the question, for what i can see
>>      it  will  not  be  a issue t= use the K2 with the K60XV installed
>>      with a broken or removed diode if&nbs=;a transverter is not used.
>>      Did i get that wrong ??
>>
>>      If  any  comments  on  the  S  meter  showing full signal, they are
>>      welcome as =ell
>>
>>      Thanks in advance
>
>>      OZ1BZJ
>>
>>      Michael
>>
>
>
>