FW: [Elecraft] K2 Construction - 2 Questions

Sun Feb 23 15:52:01 2003

That HAS to be a misprint. I checked Rev C and Rev D manuals, and your
reading glasses are FB. So, I checked my K2. My DVM's mA fuse is blown, so I
read these off the PS meter (.5 A full scale), a bit hard to read.

AF Gain CCW, RF Gain CCW (to light all the leds), Menu GRPH.
off: .230, dot: .240, bar: .280.

Not your reading by a factor of 2, but not the printed manual by a
significantly larger factor. I'd soldier on!

Don't know about the other question, but I seem to recall some recents posts
from those who do, who say 3.8 is plenty.

Dan / WG4S / K2 #2456

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of [email protected]
Sent: Sunday, February 23, 2003 2:56 PM
To: [email protected]
Subject: [Elecraft] K2 Construction - 2 Questions

I am still in the Part 1 assembly of the K2 RF board and have a couple
questions.

1.  Setting the AGC Threshold.  Pg 46 says to adjust R1 for a reading of
3.90
volts on the DMM.  Turning R1 fully counter clockwise will only give me 3.80
volts -- I assume this is not a problem.  Tell me if it is.

2.  On the Bargraph Current Test.  Pg 46 says that after you set the GRPH
mode to BAR the current should be 0.16 to 0.18 amps higher than on DOT.  My
readings show that on DOT I get 13.8 volts at 0.06 amps.  After I change the
GRPH mode to BAR, all 10 segments are lit, but a little dimmer that when
only
one or a couple are lit, and the readings I then get are 13.8 volts and 0.08
amps -- in increase in amps of only 0.02 instead of the suggested 0.16 to
0.18 amps.   I am using lamp-cord size power cord from a 20 amp regulated
power supply.  Should I be concerned, and if so, where should I look to make
a correction.  All other checks are coming out OK so far.

Thanks for the help.

Fred w2xn

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