I have one which I've successfully used with my K3.
I did find that in a QRO environment, you should be careful with RF
coming in on the outputs. I had to hang some ferrites on them to prevent
erratic operation.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
On 08/03/2023 04:39, elecraft-requ...@mailman.qth.net wrote:
I picked up a KRC2 Band Decoder.
Are there any issues using this with a K3?
Does the stock DB9 cable to the rig need to be rewired for the K3?
I want to hook it up for FD with a bandpass filter set.
There are a number of ways to set
On 3/7/2023 7:38 PM, AB2E Darrell wrote:
Are there any issues using this with a K3?
Not that I know of, Darrell, although there are a bunch of options
covered in the manual. Should be on the website. W6GJB and I have been
using a pair of KRC2s that N6RNO built to switch filter sets in his
Hi all,
I picked up a KRC2 Band Decoder.
Are there any issues using this with a K3?
Does the stock DB9 cable to the rig need to be rewired for the K3?
I want to hook it up for FD with a bandpass filter set.
If anyone is using it with a K3 please email offlist.
Thanks and 73,
Darrell AB2E
I am offering for sale or trade an assembled Elecraft KRC2 Band Decoder /
Antenna Relay Driver and homebrew 8-port remote coaxial switch that are
surplus to my needs.
Neither the KRC2 nor the relay box have ever been used or mounted outside in
the weather.
The KRC2 Band Decoder
KRC2 and Coax Switch have been sold and are no longer available.
Thanks to all who replied.
n Andy, KD3RF
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Hello!
I have just recently assemled KRC2 band decoder fro sale. It is fully tested
with the latest firmware. It just exceeds my needs at the moment, I have
some other decoders in function.
Please contact me off the list if you are interested (EU desirable)
73 Robert, S57AW
I am thinking about trying to use an Elecraft KRC2 Band Decoder to control
the band switching on a Ameritron ALS-1300 (same remote control as the
ALS-500 and ALS-600). The rig will be a Kenwood TS-480.
The KRC2 is capable of reading band data from the TS-480 and controlling
relays, so this looks
OK, I know some of you will chuckle at my question, so be gentle.
Please tell an old timer Ham (33 yrs) what the terms SOURCE and SINK
mean.
Thanks es 73,
Tom, N5GE
K3 #806, K3 #1055
XV144, XV432
W1 and other small kits.
http://www.n5ge.com
Source = the device outputs current
Sinks = the device pulls the current to ground.
Generally these terms are used with digital logic. To oversimplify, if
the logic gate is in the high state, it has a positive voltage. If a
load, such as a resistor or relay is connected to the logic gate
Jack Smith wrote:
Source = the device outputs current
Sinks = the device pulls the current to ground.
In practical terms, you can connect a 12v dc relay to a source terminal of the
KRC2 and
ground the other side of it.
To use a sink terminal, connect +12v dc to one terminal of the relay and
Tom;
The answers given are very accurate. Now let me give you one that will
help you remember. If you go to the kitchen sink and turn on the
faucet, water will come out of the SOURCE. It then runs into the basin
and drains down the SINK.
Two engineering degrees, 30 years of engineering
Vic K2VCO wrote:
Jack Smith wrote:
Source = the device outputs current
Sinks = the device pulls the current to ground.
In practical terms, you can connect a 12v dc relay to a source terminal of
the KRC2 and
ground the other side of it.
To use a sink terminal, connect +12v dc to one
Iain MacDonnell - N6ML wrote:
Vic K2VCO wrote:
Jack Smith wrote:
Source = the device outputs current
Sinks = the device pulls the current to ground.
In practical terms, you can connect a 12v dc relay to a source
terminal of the KRC2 and ground the other side of it.
To use a sink
On Fri, 29 May 2009 11:17:51 -0500, Radio Amateur N5GE n...@n5ge.com
wrote:
OK, I know some of you will chuckle at my question, so be gentle.
Please tell an old timer Ham (33 yrs) what the terms SOURCE and SINK
mean.
Thanks es 73,
Tom, N5GE
K3 #806, K3 #1055
XV144, XV432
W1 and other small
Matt/W6NIA notes, off-list, that the driver in the KRC2 has protection
that makes the diode unnecessary ... but, personally, I'd still include
it anyway - it's just good practice...
~Iain / N6ML
mzil...@verizon.net wrote:
I cannot post to the group from this account right now, so feel
I agree with Iain on this. The TPIC6595 drivers in the KRC2 _do_ have
diode protection built in. Still, it is an excellent idea to have
diodes across the relays, next to the relays themselves. This is how
my own relay box is designed.
And yes, we Elecraft folks do use our own products,
Radio Amateur N5GE wrote:
To make sure I have understood correctly. Am I correct in saying each
of the control wires going to the switch box should be connected to
the SOURCE and the ground connected to the SINK?
Thanks again,
Tom, N5GE
K3 #806, K3 #1055
XV144, XV432
W1 and other small
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