When using KPA500 my external monitor (and the P3 display) often freezes,
sometimes up to 5 seconds, after I transmit. With the external display
disabled, the P3 does not freeze (and incidentally it refreshes much faster
without the ext monitor enabled.) I also notice a slight flickering of the
Hi Mike
Is it a Samsung monitor?
And did you put beads on the power line in too?
Gerald
On Nov 5, 2014 11:33 AM, mike ai...@comcast.net wrote:
When using KPA500 my external monitor (and the P3 display) often freezes,
sometimes up to 5 seconds, after I transmit. With the external display
Not a Samsung, it is a BenQ. But it happened with Dell and ASUS monitors as
well. I just put four beads on the power line as suggested and it seems to
be better. I will see how it goes and maybe add additional beads.
Thanks. 73 ..mike
Hi Mike
Is it a Samsung monitor?
And did you put beads on
Mike is the monitor 12 volts from the AC supply. If so try running with DC
and beads.
Gerald
On Nov 5, 2014 1:14 PM, mike ai...@comcast.net wrote:
Not a Samsung, it is a BenQ. But it happened with Dell and ASUS monitors as
well. I just put four beads on the power line as suggested and it seems
Also check monitor refresh rate probably set at 60hz if changeable change
it off 60. The check all menu items on P3 dealing with the SVGA settings.
Gerald
On Nov 5, 2014 1:18 PM, Gerald Manthey kc6...@gmail.com wrote:
Mike is the monitor 12 volts from the AC supply. If so try running with DC
On 11/5/2014 9:32 AM, mike wrote:
When using KPA500 my external monitor (and the P3 display) often freezes,
sometimes up to 5 seconds, after I transmit. With the external display
disabled, the P3 does not freeze (and incidentally it refreshes much faster
without the ext monitor enabled.) I also
Thanks for your input Jim. I attended your talk at Pacifcon and have been
implementing some bonding improvements including tying all the earth ground
rods, tower etc. with #4 wire as well as better equipment grounding in the
station.
The beads on the power cable (only 110v AC no DC) appear to
My K2 with 100 watt amp and KAT100 works very well on ssb. If I put on a
Rigblaster or a SignaLink and MFJ switch combo, The mic always seems to get rf
in it, or, for some other reason, the received signal is very distorted, to
unreadability in most cases. I've tried rf chokes on all cables, etc
My K2 (ser 04069) appears to lack a bit of receiver sensitivity on 12 and 10
Meters. I can hear stations and the static noise when the antenna is connected,
only weaker than on other bands.
I have full TX power output on both bands, so the filters appears to be tuned
correctly.I only noticed
Hi Mike,
I think multiple ferrites will help but you might be surprised to find that
it works best when applied to a cable you haven't yet tried. Take off all of
the clamp-ons and get things set up to reliably cause RFI. Then put 4 or 5
clamp-ons on one cable at a time. Try this on every cable in
If you are hearing a reasonable increase in atmospheric static noise when
connecting an antenna on 12/10m, then any further increase in sensitivity is
wasted and not making efficient use of the receiver's available dynamic range.
73,
Matt VK2RQ
On 6 Nov 2014, at 8:41 am, Hans J Rasmusen OZ7BQ
Seriously consider getting some of the 31 mix snap ons.
jim ab3cv
On Wed, Nov 5, 2014 at 5:33 PM, Mike K2MK k...@comcast.net wrote:
Hi Mike,
I think multiple ferrites will help but you might be surprised to find that
it works best when applied to a cable you haven't yet tried. Take off all
Don,
First suggestion - make certain it is an RFI problem. Operate the K2
into a dummy load and monitor the data transmissions with a local
receiver - borrow one if you have to, and you may need a 2nd computer
for that test. You can feed the headphone output of the monitor
receiver
An alternate approach is to keep the RF energy outside in the antenna
field where it belongs.
Jim Brown K9YC in his RFI tutorial shows the use of quite effective
common mode chokes. 4 or 5 type 31 stacked ferrite toroid cores with 5
or 6 turns of coax wound through the stack. Use of one of
At one time there was mention of making the Split (Hold AB) key assignable
to a macro. The use of this and the various Toggle macros would free up the
PF1 and PF2 keys I currently have assigned to Copy Filters/Split/Up1 etc.
Did this ever come to pass?
73
jim ab3cv
Hans,
I would suggest you try re-peaking the K2 bandpass filters using
Transmit. Set the power to 2 watts and adjust the 10 meter inductors
for maximum output (L12 and L13) using TUNE, then switch to 12 meters
and adjust C44 and C46 for maximum output. That should produce the best
setting
If I can offer a guess ---
The K2 *did* change from subtractive LO injection below 21 MHz and
additive on 21 MHz and above.
My guess (and only a guess) is that MixW and Fldigi make the same
assumptions for the K3 (and that is not correct).
I don't think the K3 is the problem, but you will find
Hi Mike,
My Samsung monitor includes the screw holes to attach it to a standard
VESA monitor mount. One of these has a little triangle next to it and
my ohm meter informs me it is connected to the VGA port D-shell. I
have bonded it to the rest of my system via this point.
Now, I don't have a
All excellent replies, thanks to all. Right now I have the vga cable with two
loops through a large snap-on of unknown mix (I have just ordered a couple
of large 31 mix snap-ons) and placed seven snap-on beads of unknown mix on
the AC cable. It looks like the situation is better as it now requires
Actually, it is not working better. Just worked W1AW/7 on 40m and darned if
the monitor didn't freeze when I was simply sending my callsign a couple of
times in a row. Will get back at this when the new 31 mix cores arrive. 73
..mike AI6II
--
View this message in context:
On 11/5/2014 12:51 PM, mike wrote:
Without clipping and re-wiring the
end connector I have not acquired a big enough ferrite core to do the job.
That's why they make and we buy clamp-on ferrites. :) Our club recently
made a group purchase of 0.75-in i.d. clamp-ons for exactly this purpose.
Still being sold
George, W6GF
Sent from my iPad
On Nov 1, 2014, at 5:17 AM, Charlie T, K3ICH pin...@erols.com wrote:
All the TE Systems amps I have that are rated for ten watts input will
develop full, or very close to full rated power output with 3 watts drive.
73, Charlie k3ICH
At one time there was mention of making the Split (Hold AB) key
assignable
to a macro. The use of this and the various Toggle macros would free up
the
PF1 and PF2 keys I currently have assigned to Copy Filters/Split/Up1
etc.
Did this ever come to pass?
Nope.
73 from Ian GM3SEK
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