SV: [Elecraft] Re: K3 question re dual receive

2007-08-15 Thread Björn Mohr
I wrote a week ago or so;

 I plan to use my K3 primarily for low band dxing, so RX antenna
switching will be crucial.

Actually I am a little confused as to how RX signals are routed. The reason
I ordered the KRX3 option was to get RX antenna functionality. Basically I
want to be able to have my TX and RX antenna separated and have the choice
to listen to one or the other or both simultaneously.

Should I cancel the KRX3? 


I realize there was an error in my text, I am not questioning my order of
the second RX but I what I wonder is if the KXV3 transverter interface will
bring anything to the table when it comes to the second RX. I have not
ordered the tuner as I don't see any point to tuned on the radio end of the
coax...

My question is, how do I get the functionality I need as described above.


73 de Björn /SM0MDG



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Re: SV: [Elecraft] Re: K3 question re dual receive

2007-08-15 Thread Ken K3IU

This is what Wayne posted on Aug 9th.
73, Ken K3IU


On Aug 9, 2007, at 3:13 AM, Bill Tippett wrote:


/

//
// N6KR:
// The KRX3 subreceiver can either share the main receiver's RF path or 
// get its signal from the unused KAT3 ATU antenna jack.

//
// Can't we use the RX antenna port on the $79 KXV3?
/
Hi Bill,

If there's no KAT3 installed, you still have a few options.

Normally, the sub will share the RF path of the main receiver, and that 
includes the RX ANT. I.e., if the main RX is running from the RX 
antenna jack, then the sub will, too, if it's sharing RF.


You can switch the KRX3 to its auxiliary input, but if you don't have a 
KAT3, the question is what to connect it to. The present KXV3 doesn't 
have provisions for routing RX ANT only to the sub. But there are three 
other sources you could use for the KRX3's aux input: (1) the SO239 at 
ANT2 (normally supplied only with the KAT3, but you could order one and 
install it just for the sub); (2) a BNC jack, below ANT2 (labeled AUX 
RF and not normally supplied, but we could provide one on request); 
(3) the BNC jack on the KXV3 normally targeted as the buffered I.F. 
output (but you'd lose I.F. out capability).


Also, if there's enough demand for an antenna-switch-only version of 
the KAT3, we could offer one in the future. You'd then be able to 
connect the KRX3 to the unused antenna jack, as with the KAT3.


73,
Wayne
~
N6KR



Björn Mohr wrote:

I wrote a week ago or so;

  

I plan to use my K3 primarily for low band dxing, so RX antenna


switching will be crucial.

Actually I am a little confused as to how RX signals are routed. The reason
I ordered the KRX3 option was to get RX antenna functionality. Basically I
want to be able to have my TX and RX antenna separated and have the choice
to listen to one or the other or both simultaneously.

Should I cancel the KRX3? 


I realize there was an error in my text, I am not questioning my order of
the second RX but I what I wonder is if the KXV3 transverter interface will
bring anything to the table when it comes to the second RX. I have not
ordered the tuner as I don't see any point to tuned on the radio end of the
coax...

My question is, how do I get the functionality I need as described above.


73 de Björn /SM0MDG

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SV: [Elecraft] Re: K3 question re dual receive

2007-08-10 Thread Björn Mohr
Also, if there's enough demand for an antenna-switch-only version of 
the KAT3, we could offer one in the future. You'd then be able to 
connect the KRX3 to the unused antenna jack, as with the KAT3.

73,
Wayne
N6KR

Put me on the demand list!

Me too!

I plan to use my K3 primarily for low band dxing, so RX antenna switching
will be crucial.

Actually I am a little confused as to how RX signals are routed. The reason
I ordered the KRX3 option was to get RX antenna functionality. Basically I
want to be able to have my TX and RX antenna separated and have the choice
to listen to one or the other or both simultaneously.

Should I cancel the KRX3?


73 de Björn /SM0MDG


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Re: SV: [Elecraft] Re: K3 question re dual receive

2007-08-10 Thread d.cutter
I have the same desires.

David
G3UNA
 
 From: Björn Mohr [EMAIL PROTECTED]
 Date: 2007/08/10 Fri AM 09:24:33 BST
 To: elecraft@mailman.qth.net
 Subject: SV: [Elecraft] Re: K3 question re dual receive
 
 Also, if there's enough demand for an antenna-switch-only version of 
 the KAT3, we could offer one in the future. You'd then be able to 
 connect the KRX3 to the unused antenna jack, as with the KAT3.
 
 73,
 Wayne
 N6KR
 
 Put me on the demand list!
 
 Me too!
 
 I plan to use my K3 primarily for low band dxing, so RX antenna switching
 will be crucial.
 
 Actually I am a little confused as to how RX signals are routed. The reason
 I ordered the KRX3 option was to get RX antenna functionality. Basically I
 want to be able to have my TX and RX antenna separated and have the choice
 to listen to one or the other or both simultaneously.
 
 Should I cancel the KRX3?
 
 
 73 de Björn /SM0MDG
 
 
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RE: SV: [Elecraft] Re: K3 question re dual receive

2007-08-10 Thread Brett gazdzinski
  I hope Elecraft eventually looks into diversity receive.
With 2 receivers in the same box, and all the computer stuff,
I would think it would be possible to do some sort of diversity
reception, its real handy for swl and AM work, and can help
a lot on there modes also.
I could hook up the home brew G5RV and the vertical, often one
is working much better than the other at any given moment

I would think diversity would put the K3 well beyond what
any other radio could hope for in RX performance.


Brett
N2DTS

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RE: SV: [Elecraft] Re: K3 question re dual receive

2007-08-10 Thread J. Edward (Ed) Muns
   I hope Elecraft eventually looks into diversity receive.

This capability is in the initial release, using the KRX3 and KAT3.  The
KAT3 provides a second SO239 antenna connector and then the ANT button on
the front panel allow the operator to select ANT1 or ANT2.  The KRX3 can be
configured in one of two states.  The first state uses the same receive
antenna as chosen by the main receiver, i.e., ANT1, ANT2 or RX ANT (if there
is a KXV3 installed).  The second KRX3 state uses the UNUSED SO239, so if
the main RX is set on ANT1, then the KRX3 would use ANT2.  This is the basic
diversity reception setup with the K3.

With a KXV3, you can also do diversity reception with the main receiver
using the RX ANT antenna and the KRX3 using the other SO239 ANTn connector
that the TX is not using.  This allows you to have two receiving antennas
for diversity reception and yet a third antenna for transmitting.

73,
Ed - W0YK

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