Anyone have this experience. I went to turn on the rig to make a few QSOs.
It came on as usual but only stayed on for 5 sec. then cut off. I let it sit
for a min and turned it back on and samething. I thought perhaps my astron
supply was at fault but voltages are perfect ..I switched over to
Just when you think you have seen everything, something comes along and bites
you in the b*m.
Having completed yet another mod to my K2, I put it back into it's rightful
place on the operating desk, connected the KAT100/KPA100, PSU, desk microphone,
computer leads, and then switched on.
The
On Nov 30, 2004, at 1:24 AM, Stewart Baker wrote:
t is a shame that there is no way to get
at the +8V rail on the front panel board as that would be an ideal mic
supply.
I brought the +8V rail from the RF board up to a two-pin jumper. I then
plug this in to once side of the Mic jumper
On Tue, 30 Nov 2004 15:45:37 EST, [EMAIL PROTECTED] wrote:
In a message dated 30/11/04 16:46:51 GMT Standard Time,
[EMAIL PROTECTED] writes:
That's what I was doing, however, because anything capacitive slows the rise
of
the 5A rail, and hence the correct MCU initialisation, I was chasing my
Hi Stewart
Try Rather than directly connecting the decoupling cap to the 5v
supply, try
feeding it via a 100 ohm (or so) resistor. at 1ma you will only drop .1 v
but you have created a low pass filter for the noise.
Rgds
Andy Pevy
G4XYW
A future K2 owner (when the company bonus
On Tue, 30 Nov 2004 08:47:38 GMT, Stewart Baker wrote:
On Tue, 30 Nov 2004 07:59:31 +, Andy Pevy wrote:
Hi Stewart
Try Rather than directly connecting the decoupling cap to the 5v supply, try
feeding it via a 100 ohm (or so) resistor. at 1ma you will only drop .1 v
but you have created a
At 01:24 AM 11/30/2004, Stewart Baker wrote...
problem, but I am back with the noise. It is a shame that there is no way to
get
at the +8V rail on the front panel board as that would be an ideal mic supply.
The Auxbus connection between the RF board and front panel is unused. You could
cut the
On Tue, 30 Nov 2004 07:18:23 -0500, Mike S wrote:
At 01:24 AM 11/30/2004, Stewart Baker wrote...
problem, but I am back with the noise. It is a shame that there is no way
to get
at the +8V rail on the front panel board as that would be an ideal mic
supply.
The Auxbus connection between the
Stewart Baker wrote:
The amplifier only draws about 1mA, however because of noise on the 5A line,
mainly from the LED bar graph I have had to heavily decouple the pre-amp supply
to stop the noise from being superimposed on my speech.
What I think is happening is that this decoupling is
On Tue, 30 Nov 2004 08:01:25 -0800, Vic Rosenthal wrote:
Stewart Baker wrote:
The amplifier only draws about 1mA, however because of noise on the 5A line,
mainly from the LED bar graph I have had to heavily decouple the pre-amp
supply
to stop the noise from being superimposed on my speech.
In a message dated 30/11/04 16:46:51 GMT Standard Time,
[EMAIL PROTECTED] writes:
That's what I was doing, however, because anything capacitive slows the rise
of
the 5A rail, and hence the correct MCU initialisation, I was chasing my tail.
This is a problem I have come across before
I think that I have found the problem, but have yet to work out a solution.
To combat the lack of TX audio system gain I have a 1 transistor pre-amp mounted
on the microphone header plug on the front panel board. This gives about 9dB of
gain which provides sufficient audio for the compressor IC
I am wondering if any other K2 user has experienced the following.
NO receive when NOT on transmit.
VERY occasionally I get the my K2 stuck on what seems to be transmit.
If I press the MODE button to select the VOX function the display shows SPCH
0.2
then returns to the frequency display
PROTECTED]
To: Elecraft Reflector elecraft@mailman.qth.net
Sent: Sunday, November 28, 2004 5:43 AM
Subject: [Elecraft] K2 - Strange problem ?
I am wondering if any other K2 user has experienced the following.
NO receive when NOT on transmit.
VERY occasionally I get the my K2 stuck on what seems
On Sun, 2004-28-11 at 10:43 +, Stewart Baker wrote:
If I press the MODE button to select the VOX function the display shows SPCH
0.2
then returns to the frequency display with the mode (U or L) flashing.
With no microphone connected and the POWER control fully ACW their is no
received
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