Re: [Elecraft] K-Line: Antenna switching

[N5GE]

I like my Elecraft KRC2 and DX Enginering 8 Pos switch.

Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member



On Tue, 9 Oct 2012 21:36:24 -0400, Jim Miller 
wrote:

>I'm adding a KPA500 and KAT500 to my station equipment. The only coax to
>the shack will be a run of LDF5-50 to a TBD remote switch, preferrably with
>8 antenna ports.
>
>Knowing my limitations I'd prefer a means of decoding the K3 band outputs
>and controlling the remote switch automatically. An external override to
>select an alternate antenna (e.g. an inverted V instead of vertical for
>80m). I'd like some indication of what antenna automatically (or active
>override) is selected as well.
>
>I've looked at several devices (top ten, dxe, ameritron, elecraft) and
>haven't found something that meets all requirements. Of course I could
>start with just a manual unit and built something myself but I'd prefer to
>buy a unit due to other priorities. I'm looking for both the shack box and
>the remote relay box as well. I've seen several relay boxes that would
>likely work but not yet anything for the shack.
>
>Suggestions welcome!
>
>thanks
>
>jim ab3cv
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Re: [Elecraft] K-Line: Antenna switching

[Gary Gregory]

*Joe,

>From my experience Joe the reliability outdoors is not real flash either.

Some folks will have had success with them but not here.

73
*
On 10 October 2012 14:04, Joe Subich, W4TV  wrote:

>
>  > How about the Ameritron RCS-12?
>
> The Ameritron switch is a "tree" relay arrangement.  Port to port
> isolation is poor as is impedance matching (SWR) on the higher
> bands due to long leads and open frame relays.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 10/9/2012 11:09 PM, Phil&Debbie wrote:
> > “I'm adding a KPA500 and KAT500 to my station equipment. The only coax
> tothe
> > shack will be a run of LDF5-50 to a TBD remote switch, preferrably with8
> > antenna ports.”
> >
> > How about the Ameritron RCS-12?
> >
> > Phil – AD5X
> >
> > __
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-- 
*Gary*
*Start the day off slow, then taper off.*
K3 #679
KPA500FT #18
KAT500FT 007
P3 #1629
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Re: [Elecraft] K-Line: Antenna switching

[Joe Subich, W4TV]

 > How about the Ameritron RCS-12?

The Ameritron switch is a "tree" relay arrangement.  Port to port
isolation is poor as is impedance matching (SWR) on the higher
bands due to long leads and open frame relays.

73,

... Joe, W4TV


On 10/9/2012 11:09 PM, Phil&Debbie wrote:
> “I'm adding a KPA500 and KAT500 to my station equipment. The only coax tothe
> shack will be a run of LDF5-50 to a TBD remote switch, preferrably with8
> antenna ports.”
>
> How about the Ameritron RCS-12?
>
> Phil – AD5X
>
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Re: [Elecraft] New Call sign for Lew ex-K6LMP

[Tom Meier]

What in the world could this posting have to do with Elecraft equipment.
Please end the thread and keep the garbage out of here

Tom, K7ZZ

On Tue, Oct 9, 2012 at 7:08 PM, Phil Hystad  wrote:

> N6LEW is also very clear in CW.  I don't see any confusing letters such as
> in the case of the suffix: ESE (but, when done by a good fist it is clear
> of course).
>
>
> On Oct 9, 2012, at 5:38 PM, Lewis Phelps  wrote:
>
> > I wanted to let you all know that I have changed call signs.
> >
> > My new call sign is N6LEW, just approved by the FCC.
> >
> > If you're wondering why I switched from K6LMP, it's because I wanted
> K6LEW or N6LEW when I first got back into amateur radio about a decade ago.
> Neither was available, so I went with my initials. I found, over the years,
> that LMP isn't a particularly good call sign for voice communiciation
> because it's hard to distinguish between the letters M and N, and between P
> and T, so I kept getting requests for repeats of my call during VHF
> contests, especially when it really was a weak signal contact. ("Is that
> K6LNT?")
> >
> > N6LEW, on the other hand, doesn't contain any confusable letters.
> >
> > Plus, of course. it's my name.
> >
> > Every couple of years I have checked the FCC call sign database for
> availability. The former owner of N6LEW let his call sign drop several
> years ago, and after I learned that the FCC's two year waiting period had
> expired, I filed a request to re-issue it to me.
> >
> > My  new email address is Lew (at) N6LEW (dot) us
> >
> >
> > 73,
> >
> > Lew Phelps N6LEW
> > (ex K6LMP)
> > __
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Re: [Elecraft] K-Line: Antenna switching

“I'm adding a KPA500 and KAT500 to my station equipment. The only coax tothe 
shack will be a run of LDF5-50 to a TBD remote switch, preferrably with8 
antenna ports.”

How about the Ameritron RCS-12?

Phil – AD5X 

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Re: [Elecraft] New Call sign for Lew ex-K6LMP

[Phil Hystad]

N6LEW is also very clear in CW.  I don't see any confusing letters such as in 
the case of the suffix: ESE (but, when done by a good fist it is clear of 
course).


On Oct 9, 2012, at 5:38 PM, Lewis Phelps  wrote:

> I wanted to let you all know that I have changed call signs.
> 
> My new call sign is N6LEW, just approved by the FCC. 
> 
> If you're wondering why I switched from K6LMP, it's because I wanted K6LEW or 
> N6LEW when I first got back into amateur radio about a decade ago. Neither 
> was available, so I went with my initials. I found, over the years, that LMP 
> isn't a particularly good call sign for voice communiciation because it's 
> hard to distinguish between the letters M and N, and between P and T, so I 
> kept getting requests for repeats of my call during VHF contests, especially 
> when it really was a weak signal contact. ("Is that K6LNT?")
> 
> N6LEW, on the other hand, doesn't contain any confusable letters. 
> 
> Plus, of course. it's my name.
> 
> Every couple of years I have checked the FCC call sign database for 
> availability. The former owner of N6LEW let his call sign drop several years 
> ago, and after I learned that the FCC's two year waiting period had expired, 
> I filed a request to re-issue it to me.
> 
> My  new email address is Lew (at) N6LEW (dot) us
> 
> 
> 73,
> 
> Lew Phelps N6LEW 
> (ex K6LMP)
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Re: [Elecraft] K-Line: Antenna switching

[Randy Farmer]

I would enthusiastically recommend the microHAM Station Master. It will 
do everything you want and more. Since it reads the radio frequency 
directly, you can select antennas not only by band but also by sub-band 
if you wish. You can also select any number of antennas manually using 
either the front panel controls or a PS2 remote keypad. An alphanumeric 
display on the unit displays the selected antenna in plain text, using a 
name you can assign for each antenna. The Station Master also provides a 
host of configurable control lines to control all sorts of other 
hardware. The microHAM folks also make fine antenna switches with either 
six or ten ports. Their stuff isn't exactly cheap, but it's first class 
all the way.

73...
Randy, W8FN

On 10/09/2012 20:36, Jim Miller wrote:
> I'm adding a KPA500 and KAT500 to my station equipment. The only coax to
> the shack will be a run of LDF5-50 to a TBD remote switch, preferrably with
> 8 antenna ports.
>
> Knowing my limitations I'd prefer a means of decoding the K3 band outputs
> and controlling the remote switch automatically. An external override to
> select an alternate antenna (e.g. an inverted V instead of vertical for
> 80m). I'd like some indication of what antenna automatically (or active
> override) is selected as well.
>
> I've looked at several devices (top ten, dxe, ameritron, elecraft) and
> haven't found something that meets all requirements. Of course I could
> start with just a manual unit and built something myself but I'd prefer to
> buy a unit due to other priorities. I'm looking for both the shack box and
> the remote relay box as well. I've seen several relay boxes that would
> likely work but not yet anything for the shack.
>
> Suggestions welcome!

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[Elecraft] K-Line: Antenna switching

[Jim Miller]

I'm adding a KPA500 and KAT500 to my station equipment. The only coax to
the shack will be a run of LDF5-50 to a TBD remote switch, preferrably with
8 antenna ports.

Knowing my limitations I'd prefer a means of decoding the K3 band outputs
and controlling the remote switch automatically. An external override to
select an alternate antenna (e.g. an inverted V instead of vertical for
80m). I'd like some indication of what antenna automatically (or active
override) is selected as well.

I've looked at several devices (top ten, dxe, ameritron, elecraft) and
haven't found something that meets all requirements. Of course I could
start with just a manual unit and built something myself but I'd prefer to
buy a unit due to other priorities. I'm looking for both the shack box and
the remote relay box as well. I've seen several relay boxes that would
likely work but not yet anything for the shack.

Suggestions welcome!

thanks

jim ab3cv
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[Elecraft] New Call sign for Lew ex-K6LMP

[Lewis Phelps]

I wanted to let you all know that I have changed call signs.

My new call sign is N6LEW, just approved by the FCC. 

If you're wondering why I switched from K6LMP, it's because I wanted K6LEW or 
N6LEW when I first got back into amateur radio about a decade ago. Neither was 
available, so I went with my initials. I found, over the years, that LMP isn't 
a particularly good call sign for voice communiciation because it's hard to 
distinguish between the letters M and N, and between P and T, so I kept getting 
requests for repeats of my call during VHF contests, especially when it really 
was a weak signal contact. ("Is that K6LNT?")

N6LEW, on the other hand, doesn't contain any confusable letters. 

Plus, of course. it's my name.

Every couple of years I have checked the FCC call sign database for 
availability. The former owner of N6LEW let his call sign drop several years 
ago, and after I learned that the FCC's two year waiting period had expired, I 
filed a request to re-issue it to me.

My  new email address is Lew (at) N6LEW (dot) us


73,

Lew Phelps N6LEW 
(ex K6LMP)
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Re: [Elecraft] Leftover parts after KX3 build???

[Don Wilhelm]

Mike,

It is not unusual to find a few extra pieces of small hardware items in 
an Elecraft kit.  It is better to have a couple left over than to have 
one short!

The hardware is weighed rather than counted, so on lightweight pieces, 
one has to apply a small 'fudge factor' to assure that the number packed 
will be sufficient.  That is not a problem with pieces that weigh more.

73,
Don W3FPR

On 10/9/2012 6:08 PM, Mike Weir wrote:
> After completing the KX3 serial 1990 I have the two number 4 washers 
> leftover. They are on page A4 of the assembly  manual sixth down from the 
> top. I did a search in the PDF manual for them and the only result that comes 
> back is page A4 where they are listed as a part. MikeVE3WDM   
>
>

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[Elecraft] Leftover parts after KX3 build???

[Mike Weir]

After completing the KX3 serial 1990 I have the two number 4 washers leftover. 
They are on page A4 of the assembly  manual sixth down from the top. I did a 
search in the PDF manual for them and the only result that comes back is page 
A4 where they are listed as a part. MikeVE3WDM  

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Re: [Elecraft] KPA500 build problem - no out put, no PC connection

[Stan AE7UT]

All is well in Zion!

Thanks to all you Elecrafters for your help.
I took off the transformer and looked at the I/O board.
The 10 wire ribbon cable was loose.  How the "H" did that happen?
Well, I pushed it down - reassembled and it appears to be working FB.

The nice thing is I was not at all nervous about whether "we" could get it
working.  The first kit I built had me a bit on edge.  I really didn't want
to 
spend $500 dollars on something I would never get working.  After some 
troubles with my K1 and the great support of this group and Elecraft, I 
really know that these rigs are going to work - despite my ineptitude.

Thanks again.
73
Stan AE7UT







--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KPA500-build-problem-no-out-put-no-PC-connection-tp7563878p7563902.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] KX3 Reception issue and VFO noise

[Clint]

Last week I  finished building my KX3, SN 1926. Wow, what a little powerhouse.

I am not a contester but this past weekend the California QSO party was on so I 
jumped in a few times just to see how my little guy was doing. I noticed a few 
not so good things.

First there was lots of VFO noise. VFO NR helped but did not kill it.

Second I had a loose/bad connection somewhere. I could bump the radio and 
reception would change drastically. Bummer!

Yesterday I jumped back into the radio. I noticed the bare area with no paint 
on the side panels had a stripe of paint on the bottom (outer) edge. This 
SHOULD have cleared the main chassis but I suspected it did not completely 
clear. As this was the area that responded the most to my bumping exercise I 
removed the strip of paint. I also checked the Mic jack as it has a ground 
connection. It was OK. I also cleaned (again) the bare aluminum areas and 
applied a light coat of Deoxit Gold.

Well, this has fixed the reception problem. No more goofy reception, and I 
suspect transmission too, and the VFO noise is reduced. I did reseat the filter 
board, the flex connector and the auto tuner. I also applied (again) a light 
coat of Deoxit Gold (mine is cut 50% with IPA) but I found no issues with any 
of the connections and I had applied Deoxit during assembly, as a preventive 
measure.

So there you have it, for what it is worth. 

Clint

KI6SSN
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Re: [Elecraft] KX3 Filter Blow-By

[Oliver Dröse]

Hi Jim,

okay, that's another effect you are experiencing. Sideband suppression on 10 & 
6m was really bad on my KX3, too, just about 25 dB on 10 m and 10 dB on 6 m, 
but that was easily fixed with the OSB suppression by band field test firmware. 
It is probably going to be officially released soon. It will suppress the OSB 
by more than 60 dB per band if correctly done, I even have cases where I cannot 
hear the OSB anymore (seems like a wonder, hi) with an S9+20 main signal.

Luckily I do not experience your 50 Hz signal problem.

73, Olli - DH8BQA


  - Original Message - 
  From: jimk...@aol.com 
  To: dro...@necg.de ; elecraft@mailman.qth.net ; n...@elecraft.com 
  Sent: Tuesday, October 09, 2012 2:48 PM
  Subject: Re: [Elecraft] KX3 Filter Blow-By


  I did some more careful checking this morning, transmitting a few watts on 
the FT-1000MP and using a couple of inches of wire as an antenna on the KX3, on 
a quiet 10 meter band. The S-meter on the KX3 was 9+

  There is noticeable opposite (lower frequency) side suppression issues, but 
this cuts off at about 900 Hz

  On the higher side, I can hear signal to as far as my hearing and/or the 
audio chain permit. The most interesting note was that the undesired signal 
(high side only) takes a sharp dip or disappears every 50Hz, at .00 or .05 on 
the frequency readout.

  I'm not sure what to make of all this, but FWIW . . . 


  73   -  Jim  K8MR




  In a message dated 10/8/2012 3:29:37 P.M. Eastern Daylight Time, 
dro...@necg.de writes:
Hi Jim,

did you have VFO NR enabled by chance? I suppose yes, as the KX3 is quite 
unusable on the high bands without. :-( There is a known issue = bad effect 
of the DSP leading to "artifacts", i.e. hearing signals +/- 5-6 kHz again 
from strong stations. If you turn off VFO NR it goes away, but then the VFO 
noise is much too strong. :-( Another bad effect is even with VFO NR 
enabled 
if you tune "over" strong stations you suddenly have strong VFO noise until 
you stop turning the wheel. Afterwards it's gone again. And if you turn the 
VFO fast enough you will not even recognize even 59+ signals. :-( All 
problems from the VFO NR DSP implementation as confirmed by Elecraft. And 
no 
matter if with or without roofing filter and with/without 8 kHz shift 
enabled. Still wonder why nobody else is complaining about those effects? 
Cannot be that everybody has an s4 noise level on 12, 10 & 6 m that would 
mask the VFO noise and thus no need to enable VFO NR.

I documented all those effects on video and sent it over to Wayne. He said 
he and Lyle are working on it, hopefully with some results soon, otherwise 
the KX3 is of no use for a high band op like me. :-( Never seen such 
problems with *any* other rig owned so far ...

73, Olli - DH8BQA



- Original Message - 
From: 
To: 
Sent: Monday, October 08, 2012 7:46 PM
Subject: [Elecraft] KX3 Filter Blow-By


>A recent KX3 owner (# 1677), I've noticed hearing out of passband  signals
> from loud CW stations. I can hear such stations up to several KHz  away. I
> suspect the range is limited by the audio response of the system, 
> including
> my ears. Both sides of zero beat, though less so on the opposite side  of
> the zero beat.
>
> In the CA QSO Party this weekend, maybe the loudest 10% of the stations on
> 10 CW Saturday afternoon were leaking through. (I've heard the leakage on
> other  bands as well.)
>
> I don't have any roofing filters. (I figured any stations weak enough  for
> me to need the filter to hear, would never be able to hear me anyway).
>
> Is this normal, or is there some shielding or other issue affecting my
> unit? (It is a kit version).
>
>
> 73  -  Jim  K8MR
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> -
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> 08.10.2012
> 

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Re: [Elecraft] KX3 finally on order

[orthodoxhome]

Along the same lines..., this is what I bought for primary containment of this 
hot radioactive device.  
http://www.tacklewarehouse.com/Plano_Guide_Guide_Series_Waterproof_Case_1460/descpage-PL1460.html

I wrap the KX3 in bubblewrap and place it somewhat diagonally in the box with 
the right-angle antenna connector sitting in a void  and held in that 
configuration by filling other space with the MH3.  The rubber peices that come 
with the box are sticky-soft and hold everything tightly in place with very 
little compression on the bubble wrap.   It is gas-tight as well.   

This box and a few other containers (for cables, headset. various connectors, 
meter and an antenna analyzer (which I don't need because the KX3 will match 
anything it seems)   all go into an Igloo ice chest for easy carrying - with 
room to spare for additional items.  
http://www.walmart.com/ip/Coleman-Premium-28QT/13848709

When I need my 23 AH Lifeline battery (also runs my CPAP machine) for camping, 
I carry it in this 
http://www.igloo-store.com/product_detail.asp?T1=IGL+PLAYMATE+MINI&trk_src_ss=IGLPAYPCWEBMACSS&kw=igloo%20playmate%20mini
 carrying case ($9 from WM)   I cushion and hold the battery in place with 
strips cut from rigid foam pipe insulation)  I just purchased an APP chassis 
connector to install in the cover.   The handle makes such a dense battery 
quite manageable.

Mark
K5MSG

 Jim Sheldon  wrote: 
> Found a really nice looking, bright yellow, lockable, (padlock loops) 
> waterproof case that will be large enough to hold the KX3 and the microphone 
> plus a few cables from the Marlin P. Jones ( www.mpja.com ) company down in 
> Florida.  $17.95 plus shipping and they had 400+ left according to their 
> website when I ordered mine.  Their part number is 17813 BX and the complete 
> website address for it is http://www.mpja.com/10-09-12.asp?r=203963&s=22  in 
> case anyone is interested.  
> 
> Jim - W0EB
> 
> 
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Re: [Elecraft] KPA500 build problem - no out put, no PC connection

[DK2GZ]

Hello
 
I had a similar problem, see:
 
http://www.mail-archive.com/elecraft@mailman.qth.net/msg123327.html
 
73 de Harry,  DK2GZ
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Re: [Elecraft] KX3 NB question

[Keith Heimbold]

When I switch from band to band I have to turn it on. I would like it to 
default to being on as I move from band to band. 

Keith
AG6AZ

Sent from my iPhone please excuse typos

On Oct 9, 2012, at 10:34 AM, "hawley, charles j jr"  
wrote:

> Wild guess, but don't you just have to turn it on while on each band?
> 
> Sent from my iPad
> 
> On Oct 9, 2012, at 11:54 AM, "Keith Heimbold"  wrote:
> 
>> I would like to have the NB stay on as I switch bands as my truck generates 
>> some noise and the NB is very effective at eliminating the noise. Is there 
>> an easy way to program this configuration?
>> 
>> Thanks,
>> 
>> Keith
>> AG6AZ
>> 
>> Sent from my iPhone please excuse typos
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Re: [Elecraft] KX3 NB question

[hawley, charles j jr]

Wild guess, but don't you just have to turn it on while on each band?

Sent from my iPad

On Oct 9, 2012, at 11:54 AM, "Keith Heimbold"  wrote:

> I would like to have the NB stay on as I switch bands as my truck generates 
> some noise and the NB is very effective at eliminating the noise. Is there an 
> easy way to program this configuration?
> 
> Thanks,
> 
> Keith
> AG6AZ
> 
> Sent from my iPhone please excuse typos
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[Elecraft] KX3 NB question

[Keith Heimbold]

I would like to have the NB stay on as I switch bands as my truck generates 
some noise and the NB is very effective at eliminating the noise. Is there an 
easy way to program this configuration?

Thanks,

Keith
AG6AZ

Sent from my iPhone please excuse typos
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Re: [Elecraft] [K3] Feature Request

[Kjeld Holm]

Not very important to me - but it would be a nice feature indeed. 

 

Best regards

OZ1CCM Kjeld

 

 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Reilly
Sent: 9. oktober 2012 00:16
To: Elecraft
Cc: Wayne Burdick - N6KR, Elecraft
Subject: [Elecraft] [K3] Feature Request

 

If you activate Noise Reduction (NR) on a mode (like CW), NR is on for all
modes on that band. Request NR to follow both mode and band.  For example,
if you have NR selected for 40m CW, and change to LSB, NR is OFF (unless
previously activated for that mode).

 

Thanks,

   - 73, John, N0TA

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[Elecraft] KX3 finally on order

[Jim Sheldon]

Finally got my KX3 kit on order.  Talked with April @ Elecraft this morning to 
confirm things.  Going to be a kit with the ATU, Roofing Filter, Paddles and 
the MH3 microphone which won't get used much except on 6 meters, but needs to 
be in the bugout kit anyway.

Found a really nice looking, bright yellow, lockable, (padlock loops) 
waterproof case that will be large enough to hold the KX3 and the microphone 
plus a few cables from the Marlin P. Jones ( www.mpja.com ) company down in 
Florida.  $17.95 plus shipping and they had 400+ left according to their 
website when I ordered mine.  Their part number is 17813 BX and the complete 
website address for it is http://www.mpja.com/10-09-12.asp?r=203963&s=22  in 
case anyone is interested.  

Jim - W0EB


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[Elecraft] K3 SWR Consistent - Low or High Power

[N4OI - Ken]

Well, my K3/100 and P3 are now a whole week old!  Had a great time assembling
and now having a blast getting to know them -- the P3 and the CW autospot
and APF features are favorites so far.  

*One observation:* I use low power to set SWR with my TenTec manual tuner.
My FT-920's SWR meter would usually shift a bit when I increased power to
100w and I would then quickly tweak it back down.  With the K3's SWR meter
(no ATU installed), after setting the tuner at 10w or so, the reading stays
the same when power is increased to 100w. 

I assume there is a difference in the K3's SWR sensing circuit that makes it
more consistent regardless of power out, but just wanted to see if this
observation makes sense.Thanks in advance!

73 ES GOD BLESS U ES URS DE KEN N4OI 



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Re: [Elecraft] KPA500 build problem - no out put, no PC connection

[N5GE]

Regarding the fan:  Pull the top cover and make sure the fan's power
cable is plugged in.  It is easy to unplug the fan power while
installing the rear panel.

 

On Tue, 9 Oct 2012 00:13:55 -0700 (PDT), Stan AE7UT
 wrote:

>I just finished my KPA500 and am having some trouble.
>I'm using it with a K3 and the Aux cable.
>
>It powers up fine.  HV is 73.0, FAN CTL doesn't turn fans on.
>The fan does not run when I turn it off as stated in the manual.
>The KPA500 utility can't connect with it.
>Using the same cable I can use the K3 utility without a problem.
>The K3 switches the bands on the KPA500 and the KPA500 switches the K3
>bands.
>The K3 indicates when I switch from standby to operate.
>On standby I can operate with no problem.
>
>I have removed the front panel and reseated the cables twice.
>I did not pull the transformer or play with the I/O module.
>I'll do that tomorrow when I get a little more time.
>
>Anyone have similar problems?  Any thoughts?
>Of course I'll call Elecraft for help if nothing seems to work.
>
>73
>Stan AE7UT
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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Re: [Elecraft] KX3 Filter Blow-By

[M5FRA - Colin]

Jim, that prompted me to fire up the sig gen and have a look. On all HF 
bands I found that with an S9 +30 sig the opposite sideband is around 
55db down, i.e. around S3-4. With an S9 sig it is barley audible and it 
takes an S9+15 (approx) for the opposite sideband to register on the S 
meter. The settings were PRE (20db) = on, B/W 250Hz, XFIL=FL3. I did 
not get the the 50Hz sigs that you found. Could that have been front 
end overload? I use mostly CW and have not found any of this to be a 
problem. 
   
Colin - G8FRA/M5FRA 
   
m5fra.org.uk < http://www.m5fra.org.uk> 


-- Original Message -- 
From: jimk...@aol.com 
To: dro...@necg.de;elecraft@mailman.qth.net;n...@elecraft.com 
Sent: 09/10/2012 13:48:23 
Subject: Re: [Elecraft] KX3 Filter Blow-By 
>I did some more careful checking this morning, transmitting a few 
>watts on 
>the FT-1000MP and using a couple of inches of wire as an antenna on 
>the 
>KX3, on a quiet 10 meter band. The S-meter on the KX3 was 9+ 
>
>There is noticeable opposite (lower frequency) side suppression 
>issues, 
>but this cuts off at about 900 Hz 
>
>On the higher side, I can hear signal to as far as my hearing and/or 
>the 
>audio chain permit. The most interesting note was that the undesired 
>signal 
>(high side only) takes a sharp dip or disappears every 50Hz, at .00 or 
>.05 
>on the frequency readout. 
>
>I'm not sure what to make of all this, but FWIW . . . 
>

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Re: [Elecraft] KX3 mobile mounting kit

[Matt Zilmer]

Try looking here
http://www.elecraft.com/K2_Manual_Download_Page.htm#KX3

See the 7th line down.

73,
matt

On Tue, 09 Oct 2012 18:41:09 +1000, you wrote:

>*Hi All,
>
>Anyone have a link to share for a supplier of the mobile mounting brackets
>suitable for mounting a KX3 for mobile use?
>
>73
>*
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[Elecraft] [KX3]. Oposite ssb suppression

[Mike Rodgers]

What kind of limitations does this pose to operating ssb low and high bands.
I'm mostly a high band operator?

73
Mike R

Play me some fiddle, but no stinkin' violin!

Amateur/Ham Radio KE5GBC
HF & Echolink mobile
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Re: [Elecraft] KX3 Filter Blow-By

[Jimk8mr]

I did some more careful checking this morning, transmitting a few watts on  
the FT-1000MP and using a couple of inches of wire as an antenna on the 
KX3, on  a quiet 10 meter band. The S-meter on the KX3 was 9+
 
There is noticeable opposite (lower frequency) side suppression  issues, 
but this cuts off at about 900 Hz
 
On the higher side, I can hear signal to as far as my hearing and/or the  
audio chain permit. The most interesting note was that the undesired signal  
(high side only) takes a sharp dip or disappears every 50Hz, at .00 or .05 
on  the frequency readout.
 
I'm not sure what to make of all this, but FWIW . . . 
 
 
73   -  Jim  K8MR
 
 
 
 
 
In a message dated 10/8/2012 3:29:37 P.M. Eastern Daylight Time,  
dro...@necg.de writes:

Hi  Jim,

did you have VFO NR enabled by chance? I suppose yes, as the KX3  is quite 
unusable on the high bands without. :-( There is a known issue =  bad 
effect 
of the DSP leading to "artifacts", i.e. hearing signals +/- 5-6  kHz again 
from strong stations. If you turn off VFO NR it goes away, but  then the 
VFO 
noise is much too strong. :-( Another bad effect is even with  VFO NR 
enabled 
if you tune "over" strong stations you suddenly have strong  VFO noise 
until 
you stop turning the wheel. Afterwards it's gone again.  And if you turn 
the 
VFO fast enough you will not even recognize even 59+  signals. :-( All 
problems from the VFO NR DSP implementation as confirmed  by Elecraft. And 
no 
matter if with or without roofing filter and  with/without 8 kHz shift 
enabled. Still wonder why nobody else is  complaining about those effects? 
Cannot be that everybody has an s4 noise  level on 12, 10 & 6 m that would 
mask the VFO noise and thus no need  to enable VFO NR.

I documented all those effects on video and sent it  over to Wayne. He said 
he and Lyle are working on it, hopefully with some  results soon, otherwise 
the KX3 is of no use for a high band op like me.  :-( Never seen such 
problems with *any* other rig owned so far  ...

73, Olli - DH8BQA



- Original Message -  
From: 
To:  
Sent: Monday, October 08, 2012 7:46  PM
Subject: [Elecraft] KX3 Filter Blow-By


>A recent KX3 owner  (# 1677), I've noticed hearing out of passband  signals
> from loud  CW stations. I can hear such stations up to several KHz  away. 
I
>  suspect the range is limited by the audio response of the system, 
>  including
> my ears. Both sides of zero beat, though less so on the  opposite side  of
> the zero beat.
>
> In the CA QSO  Party this weekend, maybe the loudest 10% of the stations 
on
> 10 CW  Saturday afternoon were leaking through. (I've heard the leakage on
>  other  bands as well.)
>
> I don't have any roofing filters.  (I figured any stations weak enough  
for
> me to need the filter to  hear, would never be able to hear me anyway).
>
> Is this normal,  or is there some shielding or other issue affecting my
> unit? (It is a  kit version).
>
>
> 73  -  Jim  K8MR
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>
> -
> E-Mail  ist virenfrei.
> Von AVG uberpruft - www.avg.de
> Version:  2012.0.2221 / Virendatenbank: 2441/5317 - Ausgabedatum: 
>  08.10.2012
>  

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Re: [Elecraft] connection among K3, KPA500 and KAT500

[Richard Ferch]

Johnny,

I don't believe that will work. According to Dick K6KR: "For amplifier 
key line interrupt, you should use two 15-pin cables, or two RCA cables 
(radio to ATU, ATU to amplifier). But you can't use one of each. The RCA 
connectors and 15-pin ACC cables use different poles of a double pole 
amplifier key line interrupt relay." (see 
 
for Dick's full message, which has other useful information about this 
topic).

73,
Rich VE3KI


VR2XMC wrote:

> If I only have ONE KPAK3AUX cable, should I connect it between KAT500 and K3?
> The connection between KPA500 and KAT500 is just a RCA cable for PTT.

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Re: [Elecraft] connection among K3, KPA500 and KAT500

[Dick Dievendorff]

We just put a new cable order item onto the order page yesterday.  

You may want to consider the E850468 "Optional KAT500 to KPA500 Cable". It
will also work as a K3 to KAT500 cable.  It doesn't include the Y or Tx line
keying adapter that are included in the KPAK3AUX cable set.

http://www.elecraft.com/elecraft_prod_list.htm#kat500  You may need to
refresh your browser cache if you have a cached older copy of the Elecraft
order page.

You can't use one 15-pin acc cable from K3 to KAT500  and then an RCA cable
from KAT500 to the amplifier.  The RCA key line path uses a separate relay
pole from the key line in the 15-pin cable.  For the K3 to KAT500 to KPA500,
you'll probably want two of the 15-pin cables so that the K3 is aware of the
KPA500.

73 de Dick, K6KR



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Johnny Siu
Sent: Tuesday, October 09, 2012 1:14 AM
To: Elecraft
Subject: [Elecraft] connection among K3, KPA500 and KAT500

Hello Elecrafters,
 
I notice there have been discussions about the above in this forum.
 
If I only have ONE KPAK3AUX cable, should I connect it between KAT500 and
K3?  The connection between KPA500 and KAT500 is just a RCA cable for PTT.
 
Any ideas?

TNX & 73,


Johnny VR2XMC
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Re: [Elecraft] KAT500 cable

[Dick Dievendorff]

We just put it onto the order page yesterday.  

You're looking for the E850468 "Optional KAT500 to KPA500 Cable". It will
also work as a K3 to KAT500 cable.  It's like the KPAK3AUX  but doesn't
include the Y or Tx line keying adapter that are included in the KPAK3AUX
cable set.

http://www.elecraft.com/elecraft_prod_list.htm#kat500  You may need to
refresh your browser cache if you have a cached older copy of the Elecraft
order page.

73 de Dick, K6KR
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of k5oai
Sent: Tuesday, October 09, 2012 3:58 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KAT500 cable

Now how about a cable for the rest of us K3 users that don't have a KPA500
and just need a cable from the K3 to the KAT500?



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Re: [Elecraft] KAT500 cable

[Gary Gregory]

*Off the Elercaft order page:


**E850463* *Optional KAT500 to KPA500 Cable*

KAT500 to KPA500 cable. Provides band data to KAT500 for band change prior
to TX,, and feeds through KPAK3AUX cable data from the K3 to the KPA500.
Typically used in addition to the KPAK3AUX cable from the K3 to route band
data, keying and AUXBUS data through the KAT500 to the KPA500. (The KAT500
has AUX Cable IN and OUT connections.)

This is the same 15 pin cable as is contained in the KPAP3AUX cable set
(see above, under the KPA500). That set also includes a Y cable expansion
adapter and a TX line keying interrupt adapter for the K3 to KPA500 link.


Seems like a reasonable price or roll your own as they say


:-)

 *24.95*
On 9 October 2012 20:58, k5oai  wrote:

> Now how about a cable for the rest of us K3 users that don't have a KPA500
> and just need a cable from the K3 to the KAT500?
>
>
>
> --
> View this message in context:
> http://elecraft.365791.n2.nabble.com/KAT500-cable-tp7563858p7563882.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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-- 
*Gary*
*Start the day off slow, then taper off.*
K3 #679
KPA500FT #18
KAT500FT 007
P3 #1629
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Re: [Elecraft] KAT500 cable

[k5oai]

Now how about a cable for the rest of us K3 users that don't have a KPA500
and just need a cable from the K3 to the KAT500?



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[Elecraft] connection among K3, KPA500 and KAT500

[Johnny Siu]

Hello Elecrafters,
 
I notice there have been discussions about the above in this forum.
 
If I only have ONE KPAK3AUX cable, should I connect it between KAT500 and K3?  
The connection between KPA500 and KAT500 is just a RCA cable for PTT.
 
Any ideas?

TNX & 73,


Johnny VR2XMC
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Re: [Elecraft] KX3 Filter Blow-By

[M5FRA - Colin]

As a update to my previous post I measured the opposite sideband 
rejection on 20m and got 58db which is within spec and not that bad for 
a direct conversion RX. While I would like it to be better I can live 
with those sort of figures. 
  
Colin - G8FRA/M5FRA
  
m5fra.org.uk 


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[Elecraft] KPA500 build problem - no out put, no PC connection

[Stan AE7UT]

I just finished my KPA500 and am having some trouble.
I'm using it with a K3 and the Aux cable.

It powers up fine.  HV is 73.0, FAN CTL doesn't turn fans on.
The fan does not run when I turn it off as stated in the manual.
The KPA500 utility can't connect with it.
Using the same cable I can use the K3 utility without a problem.
The K3 switches the bands on the KPA500 and the KPA500 switches the K3
bands.
The K3 indicates when I switch from standby to operate.
On standby I can operate with no problem.

I have removed the front panel and reseated the cables twice.
I did not pull the transformer or play with the I/O module.
I'll do that tomorrow when I get a little more time.

Anyone have similar problems?  Any thoughts?
Of course I'll call Elecraft for help if nothing seems to work.

73
Stan AE7UT





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