KRC2 with Dunestar Model 600

[AK4IK_Ian]

Does anyone have any experience with Elecraft's KRC2 band decoder/switcher
and the Dunestar Model 600 multi-band bandpass filter?  I'm contemplating
this combination for use with my K3 and would love the opinions of anyone
who has used this combination.  I want to make sure I get automatic band
switching with the band pass filter so I don't accidentally smoke the filter
by forgetting to change its band as I change radio bands.

Thanks and 73,

Ian Kahn, AK4IK
Roswell, GA
K3 #281, P3 #688
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[Iain MacDonnell - N6ML-2]

On Thu, Jul 14, 2011 at 12:35 PM, Ian Kahn <[hidden email]> wrote:
> Does anyone have any experience with Elecraft's KRC2 band decoder/switcher
> and the Dunestar Model 600 multi-band bandpass filter?  I'm contemplating
> this combination for use with my K3 and would love the opinions of anyone
> who has used this combination.  I want to make sure I get automatic band
> switching with the band pass filter so I don't accidentally smoke the filter
> by forgetting to change its band as I change radio bands.

Although the switching works fine, I have a problem with this
combination, in that the KRC2 seems to produce strong birdies, of a
sort, on the 10m band. The birdies alternate between two frequencies a
couple of kHz apart every second or so, with the time spent on each of
the two frequencies drifting back and forth. There are harmonics of it
all over the 10m band. It sounds like a timer of some sort in the
KRC2, and it goes away if I power off the KRC2 (and activate the 10m
filter by other means). I'm not sure if I have a defective KRC2, or if
it's a fundamental flaw. I've reproduced it with two different
Dunestars, but only tried with one KRC2. I still need to dig into it a
bit more...

73,

    ~iain / N6ML
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[K2GN]

I'm using 2 W2 in my antenna system.
They are side by side on the shelf and the Remote sensors are pretty much
the length of the interconnecting cable away.
I'm getting interaction between the meters. I getting readings one the one
I'm not transmitting on, as well as the one in use.
I'm not sure if it's coming from the interconnect lines that are parallel
for the complete run or if its interaction in the antennas.
Anyone else experience this??

Larry/K2GN - http://k2gn.com
K-Line - K3 S/N - 3278    P3 S/N - 51 KPA-500 - S/N 27
                KAT500 S/N - ????
 

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[Bill K9YEQ]

Check to make sure the coax connectors are tight.  Sounds like a
grounding/stray rf issue, but I could be very wrong.  If the connectors are
tight then your antennas may be picking up rf from one another.  Try
grounding the unused antenna system, then transmit.  If you have no issue,
then the antennas are returning rf to the pickups.  I have diversity receive
in my shack with the K3.  If I don't ground the diversity antenna, I pick up
stray rf, enough to trigger the relay built into the K3 to protect the
receiver.  I need to come up with a different system to avoid grounding but
limit the return RF.  I do run 1.5KW so this is my issue.

73,
Bill
K9YEQ

-----Original Message-----
I'm using 2 W2 in my antenna system.
They are side by side on the shelf and the Remote sensors are pretty much
the length of the interconnecting cable away.
I'm getting interaction between the meters. I getting readings one the one
I'm not transmitting on, as well as the one in use.
I'm not sure if it's coming from the interconnect lines that are parallel
for the complete run or if its interaction in the antennas.
Anyone else experience this??

Larry/K2GN - http://k2gn.com
K-Line - K3 S/N - 3278    P3 S/N - 51 KPA-500 - S/N 27
                KAT500 S/N - ????
 

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