Re: [Elecraft] K3 suddenly dies

[Gary, W7TEA]

Well, I brought the RS35A (over 30 years old I think) and cable from the home
QTH to start substituting.  First though, I cleaned the cable ends of the
offending set up and it tested at 13.8v.  I plugged it into the K3 and it
fired up.  Then I transmitted at low power and started getting feedback in
the audio channel and power output on the K3 showed that it was varying when
in tune.  I turned off the supply and had a bite to eat.  When I returned to
the shack planning on testing the voltage under power using the VFO B
display on the rig, it refused to turn on as did the keyer.  I checked the
voltage at the PS terminals and it registered 0.8v DC.  I took the fuse out,
cleaned it good, checked continuity, used Deoxit and still 0.8v DC. Also
confirmed that the outlet was 117v AC.   Will use my old power supply
tomorrow.  This power supply is two years old.  Guess I'll take it home and
start reading up on troubleshooting but would love to hear ideas about what
probably went wrong and what to test for.  

tnx, Gary W7TEA



-
73,

Gary W7TEA  K3 #1001, #5763
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[Elecraft] [OT] Pignology Pacificon Online Sale

[Nick Garner]

Hello Everyone,
Pignology products will be 10% off at Pacificon and I'll be extending this
discount to the online store from today through Sunday for anyone who can't
make it to the show.  This discount includes Piglet, PigKnob, and
PigRemote.  Anything purchased online will ship next week based on
availability.

The store is located at http://shop.pignology.net.

If you're going to be at Pacificon, stop by and say Hello!

See you there!

73,
Nick
N3WG
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Re: [Elecraft] SideKX

[Dave]

Will do, but probably tomorrow now.

Dave (G0DJA)

- Original Message - 
From: "KD6QZX" 

To: 
Sent: Wednesday, October 09, 2013 3:38 PM
Subject: Re: [Elecraft] SideKX


Thands for the kind words.. If you hav time could you post an Eham review 
there..


THANKS again Scott AK6Q



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Re: [Elecraft] SideKX

[Dave]

My Side KX arrived today, within minutes the side panels were replaced and 
the perspex cover snapped into place.


I'll add my support for this add-on as well.  Promptly dispatched after 
order, arrived safely and I'm now happier to put the KX3 in with my 'stuff' 
when I am away on holiday or with work, which may well be in the next couple 
of weeks as there's a meeting down in Burgess Hill arranged for a couple of 
weeks time and I may well now take the KX3 and a simple antenna away with me 
to see how it performs.


Highly recommended if you have or are thinking of buying a KX3 with the 
intention of lugging it round in suitcases and perhaps balancing it on 
places where it might fall over, this option will give you peace of mind 
that the knobs will be protected and the cover will keep the dust off untill 
you are ready to go on the air.  If you didn't know that it was an add on, 
you'd think the radio was designed with the replacement panels and perspex 
cover because they fit so well together.


Dave (G0DJA)



- Original Message - 
From: "Alan Hawrylyshen" 

To: "Tom Rousseau" 
Cc: 
Sent: Wednesday, October 09, 2013 7:47 AM
Subject: Re: [Elecraft] SideKX


I'll second this - I really love the SideKX product - I feel like the 
radio is backpack and road-worthy in the extreme now.


Alan
K2ACK 


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Re: [Elecraft] K3 to Yaesu Quadra Band Data 2 question

[Joe Subich, W4TV]

However, I have received emails from a few K3 owners saying they
indeed HAVE successfully used INPUT 2 with a second HF transceiver
but none have testified to resolving the issues Joe alludes to
below.


The Exciter 1/Antenna 1 default is a limitation of the switching in
the Quadra that is not "solvable".  However, as long as one is not
trying to use the Quadra for SO2R (needs to receive on Exciter 2
whilst simultaneously transmitting or receiving on Exciter 1) that
is not a barrier.

The real issue is the single F.SET output.  F.SET is connected to
the K3 "Key" input to provide a carrier for adjusting the Quadra's
automatic antenna tuner in response to pressing the F-Set button
on the Quardra control panel.

The Quadra's original design clearly included separate F.Set outputs
on the 15 pin "Band Data 2" jack - with switching done by RL7501 on
the Connector Unit board.  However, when the FT-1000D and later MP
required a specific resistance to ground rather than a contact
closure to ground for the "TUNE" function, the second output was
changed to provide the resistive pull down and the relay was used
to engage F-Set rather than switch the F.Set line.

Other than the F.Set and SO2R limitations, the Quadra works just fine 
with two exciters.  The Band Data 2 cable schematic is *identical* to

the Band Data 1 cable documented on N0SS's web site *except* that
the DIN8/262 is replaced by a DA15P - the pin numbers are the same
on either connector.

K2ESE has developed a modification to the Quadra that resolves the
F.Set issue - if you can find it on the web.  In essence the K2ESE
modification taps the internal "exciter select" line and routes it
to an external opto-isolator and relay to switch the F.Set signal
between the two exciters.  Once could certainly do the same "job"
by adding an opto-isolator and rewiring RL7501 but of course that
is major surgery as opposed to routing the "exciter select" line
to an unused pin on the "Band Data 2" jack and doing the switching
externally.

Two other notes:  1) the exciter using Band Data 2 must be connected
to Input 2.  This has one side effect - if the *only* exciter is using
Band Data 2, the exciter can not be used if the Quadra is turned off
(as opposed to standby).  2) the PTT inputs of the two Band Data jacks
are connected in parallel and the *unselected* input (exciter) is open
circuited.  One must be careful not to transmit on the unselected
exciter (thus one imperative for switching F.Set instead of the default
parallel operation) although connecting the "Inhibit" line to the K3
and setting MENU:TX INH => HI =Inh will prevent the K3 from generating 
RF if it is not selected!


73,

   ... Joe, W4TV


On 10/10/2013 2:31 PM, KENT TRIMBLE wrote:

Additional Quadra information . . .

According to a phone conversation I had several years ago with Yaesu
Support, the Quadra's INPUT 2 was intended to accommodate a six-meter
exciter, not another HF rig.  Because of internal changes made by Yaesu
during final design planning (literally at the last minute) to
incorporate other applications, INPUT 2 does not support the same
features as INPUT 1.  However, I have received emails from a few K3
owners saying they indeed HAVE successfully used INPUT 2 with a second
HF transceiver but none have testified to resolving the issues Joe
alludes to below.  Neither Tom Hammond nor I pursued further INPUT 2
issues for the simple reason that I had no interest in using it.
Moreover, Elecraft's KPA500 was in the final development stages and I
knew I would be using it with the K3.  To my knowledge, Yaesu has never
addressed these INPUT 2 issues and the circuitry remains the same as
originally designed.  If someone has information to the contrary, please
let me know.

As for Dick's eyesight problems (join the crowd), I suggest taking a
look at the appropriate Winford Slim Breakout Board
(http://www.winford.com/products/brksd15.php) as an easy alternative to
cabling.

73,

Kent  K9ZTV




On 10/10/2013 10:01 AM, Joe Subich, W4TV wrote:



I'd like to have my 2nd K3 control the Quadra via the Quadra's Band
Data 2 connector. I'm wondering if this is possible,


Yes.  Note however, there are some issues in using two exciters -
particularly the lack of switching for the TF (tuning) output from
the Quadra.  There are a couple modifications on-line that add an
external relay to provide that function.

Also note that Exciter 1 (Band Data 1) and antenna 1 are automatically
selected when the Quadra is off/bypassed.  Exciter 2 will have no
antenna and the Inhibit line is forced high (no RF from Exciter 2).


if so, if anyone manufactures the needed cable to go between the K3's
accessory connector and the Quadra's Band  Data 2 jack?


Not to my knowledge.  Further,  do not recall any published info on
wiring such a cable - it was not included in N0SS's work - although
one could derive the information from the Quadra Service Manual or
the general interfacing documentation at VA7OJ/AB4OJ's Quadra web
si

Re: [Elecraft] K3 to Yaesu Quadra Band Data 2 question

[KENT TRIMBLE]

Additional Quadra information . . .

According to a phone conversation I had several years ago with Yaesu 
Support, the Quadra's INPUT 2 was intended to accommodate a six-meter 
exciter, not another HF rig.  Because of internal changes made by Yaesu 
during final design planning (literally at the last minute) to 
incorporate other applications, INPUT 2 does not support the same 
features as INPUT 1.  However, I have received emails from a few K3 
owners saying they indeed HAVE successfully used INPUT 2 with a second 
HF transceiver but none have testified to resolving the issues Joe 
alludes to below.  Neither Tom Hammond nor I pursued further INPUT 2 
issues for the simple reason that I had no interest in using it.  
Moreover, Elecraft's KPA500 was in the final development stages and I 
knew I would be using it with the K3.  To my knowledge, Yaesu has never 
addressed these INPUT 2 issues and the circuitry remains the same as 
originally designed.  If someone has information to the contrary, please 
let me know.


As for Dick's eyesight problems (join the crowd), I suggest taking a 
look at the appropriate Winford Slim Breakout Board 
(http://www.winford.com/products/brksd15.php) as an easy alternative to 
cabling.


73,

Kent  K9ZTV




On 10/10/2013 10:01 AM, Joe Subich, W4TV wrote:



I'd like to have my 2nd K3 control the Quadra via the Quadra's Band
Data 2 connector. I'm wondering if this is possible,


Yes.  Note however, there are some issues in using two exciters -
particularly the lack of switching for the TF (tuning) output from
the Quadra.  There are a couple modifications on-line that add an
external relay to provide that function.

Also note that Exciter 1 (Band Data 1) and antenna 1 are automatically
selected when the Quadra is off/bypassed.  Exciter 2 will have no
antenna and the Inhibit line is forced high (no RF from Exciter 2).


if so, if anyone manufactures the needed cable to go between the K3's
accessory connector and the Quadra's Band  Data 2 jack?


Not to my knowledge.  Further,  do not recall any published info on
wiring such a cable - it was not included in N0SS's work - although
one could derive the information from the Quadra Service Manual or
the general interfacing documentation at VA7OJ/AB4OJ's Quadra web
site.

Yaesu offer the CT-178 Connection cable for connecting the FT3000
to the Quadra.  One could modify that cable by replacing the DA15P
on the exciter end with the appropriately wired DE15P.  Similarly,
one could modify the Yaesu CT-118 cable for the FT-450/950/1200 and
Quadra by replacing the miniDIN-10 on the transceiver end with the
appropriately wired DE15P.

73,

   ... Joe, W4TV





On 10/10/2013 1:29 AM, r...@aol.com wrote:

Hi Guys,

Wondering if anyone has successfully used a K3 to control a Yaesu Quadra
by using the Quadra's Band Data 2 jack?  My K3's has  been controlling a
Quadra via the Quadra's Band Data 1 and it works  well.  But I'd like 
to have my

2nd K3 control the  Quadra via the Quadra's Band Data 2 connector.  I'm
wondering if this is  possible, and if so, if anyone manufactures the 
needed
cable to go between the K3's accessory connector and the Quadra's 
Band Data 2

jack?  (I've got eye problems and cannot wire  small cables)

Thanks & 73,

Dick- K9OM


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elecraft@mailman.qth.net

[Chris Rutkowski]

Hi Nick.

I've traveled with my KX3 and various accessories on a dozen or more
flights, both domestic (around the USA) and into several European
countries.

Here's a synopsis of the results and best practices derived therefrom.

1. No one has ever shown the slightest interest in the KX3 (with
internal NiMH batteries), coiled antenna wires, coils of coax, or
small bits and pieces and wires.

2. The only items that have drawn attention (once each) have been:

a. A separate battery pack (Buddistick in my case)
b. Needle nose pliers close to 7 inches.
c. A barrel connector joining the PL259s on either end of a coil of
coax (they said they couldn't see it well enough).

The seven inch tool item is a tough one because longer tools are
specifically prohibited. So measure the tool first. However, the tool
that drew attention was only six inches long, but they wanted to
measure it to make sure.

A TSA agent made a suggestion which both makes sense and has so far worked:

"If in doubt, unpack it and put it in plain view."

In other words, I now organize my packing so that the battery pack,
that suspect tool, and such are easily removed for inspection (along
with my laptop and the little bag full of liquids), and rather than
waiting for the TSA to ask, I put them in the examaination tray along
with my shoes.

Haven't raised an eyebrow since. On my last flight (3 weeks ago from
MSP to PDX) a TSA agent actually -thanked- me for putting out the
battery pack!

However, you never know about the next guy, so remember that they're
doing a job, and thank them for being careful :-)

73, Chris NW6V


On Oct 8, 2013, at 16:27 , Nicklas Johnson  wrote:

> After my last trip, when I got hassled by the TSA about my wire stripper
> (no tools longer than 7 inches, even ones that couldn't possibly hurt
> anyone), I thought this time I should probably ask around first...
>
> Has anyone traveled with a KX3 and a Buddistick in carry-on luggage? I've
> got NiMH batteries installed in the KX3, and in the Buddistick bag there's
> the antenna itself and a couple spools of 25' of coax.
>
> It seems like it SHOULD be okay, unless they mistake segments of the
> Buddistick for Billy Clubs, which aren't allowed in carry-on (but are okay
> in checked luggage).
>
> But you never know these days... has anyone tried it, either successfully
> or unsuccessfully and can share experiences?
>
> ? Nick?
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[Elecraft] FS: REMOTE RIG

[W0SZ]

Remote Rig is spoken for. Thanks W0SZ
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Re: [Elecraft] XV-50 No Output

[Don Wilhelm]

Kevin,

Please re-check.
The pin numbers are not marked on the board or on the module.
According to the voltage chart, pin 1 is the output pin and pin 4 is 
closest to U6.
If you have 13.6 volts on pin 3, you have a error somewhere - that pin 
is fed from the output of the 5 volt regulator U3.


73,
Don W3FPR

On 10/10/2013 12:44 PM, NZ1I wrote:

Hi Folks,

I have a XV 50 that has no output. Nothing is showing on my Bird meter but
the LEDS do light up across the front of the transverter when I whistle into
the mic. It appears to receive ok.

Measurements taken:
U7 Pin 2- 13.6v receive, Pin 3- 13.6v ( should be 3.5 - 4.5) transmit

U 3  Input - 0v receive( ok), 13.5v transmit( within limits?)
Output- 0v receive (ok), 9v transmit ( should be 5v)

U 6 Output- 0v receive(ok), 1.7v transmit ( to K2 relay) and (5v to Z3)




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[Elecraft] Far OT: Any HRD V6 users who are Ex; DX4WIN users?

[Ken G Kopp]

I have several questions that the HRD phone folks don't seem to be
able to answer.

I'd like contact with anyone who's changed from DX4WIN to HRD V6.

Thanks, and ...

73~!

Ken Kopp - K0PP
kengk...@gmail.com
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Re: [Elecraft] K3 Roofing filters

[Joe Subich, W4TV]

If you do a lot of AM transmit you will have a cleaner signal with
the 6K filter.


Only marginally and only so far as it applies to synthesizer phase
noise more than +/- 3 KHz from the carrier.  Even then, the K3 will be
much cleaner that the typical YaeComWood up-conversion transceiver with
their 30 KHz wide 4 pole VHF filters.

73,

   ... Joe, W4TV


On 10/10/2013 1:27 PM, Bill Frantz wrote:

I think Paul had gotten the information he was asking about from others
Bill and Don.

I don't see much use for the 6K filter since you can now use the 13K FM
filter for AM transmit. If you do a lot of AM transmit you will have a
cleaner signal with the 6K filter. If you only do AM receive, you can
use the 2.7K or 2.8K filter to receive on only one sideband and get
usable performance when conditions need narrower roofing than provided
by the 13K filter. Save your filter slots for hard SSB, CW and digital
conditions where roofing can be a lifesaver.

Cheers - Bill, AE6JV

---
Bill Frantz| I don't have high-speed  | Periwinkle
(408)356-8506  | internet. I have DSL.| 16345 Englewood Ave
www.pwpconsult.com |  | Los Gatos, CA 95032

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Re: [Elecraft] K3 Roofing filters

[Bill Frantz]

I think Paul had gotten the information he was asking about from 
others Bill and Don.


I don't see much use for the 6K filter since you can now use the 
13K FM filter for AM transmit. If you do a lot of AM transmit 
you will have a cleaner signal with the 6K filter. If you only 
do AM receive, you can use the 2.7K or 2.8K filter to receive on 
only one sideband and get usable performance when conditions 
need narrower roofing than provided by the 13K filter. Save your 
filter slots for hard SSB, CW and digital conditions where 
roofing can be a lifesaver.


Cheers - Bill, AE6JV

---
Bill Frantz| I don't have high-speed  | Periwinkle
(408)356-8506  | internet. I have DSL.| 16345 
Englewood Ave
www.pwpconsult.com |  | Los Gatos, 
CA 95032


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Re: [Elecraft] [K3] KRX3 L-mix-R problem

[Mike K2MK]

Hi Brian,

Check CONFIG:SPKR+PH.

I forget the reason why but the right ear is muted if SPKR+PH is YES and
CONFIG:SPKRS is 1.

73,
Mike K2MK


K1LI wrote
> Suddenly, I can't hear the sub-receiver in the right headphone unless I
> use
> the "Ab-b" option on the "L-MIX-R" menu item. (FYI, the "b-Ab" option also
> does not work.) I used the "A-b" option for years. Any clues as to what I
> may have inadvertently changed to cause this?
> 
> Brian K1LI





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[Elecraft] SWR readings

[Jorge Diez - CX6VM]

Hello

 

I have something in my SWR meter on K3

 

I measure in 28000 and 1.2:1 on K3 and 1.32:1 on external SWR meter

I measure in 28500 and 1.0:1 on K3 and 1.21:1 on external SWR meter

I measure in 29000 and 3.5:1 on K3 and 2.95:1 on external SWR meter

 

Then I return to 28000 and 2.4:1 on K3 and 1.32:1 on external SWR meter

 

This continue. What I found to solve is to put K3 ATU, adjust antenna, then
turn off ATU and SWR is OK, but this is nor normal to do, right?

 

73,

Jorge

K3 #4077

 

 

 

 

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[Elecraft] XV-50 No Output

[NZ1I]

Hi Folks,

I have a XV 50 that has no output. Nothing is showing on my Bird meter but
the LEDS do light up across the front of the transverter when I whistle into
the mic. It appears to receive ok.

Measurements taken:
U7 Pin 2- 13.6v receive, Pin 3- 13.6v ( should be 3.5 - 4.5) transmit

U 3  Input - 0v receive( ok), 13.5v transmit( within limits?)
   Output- 0v receive (ok), 9v transmit ( should be 5v)

U 6 Output- 0v receive(ok), 1.7v transmit ( to K2 relay) and (5v to Z3)


Any ideas would be appreciated.

Thanks and 73,
Kevin NZ1I



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[Elecraft] K3 ATU tuning jumps to full power

[Edward F. Steinfeld]

I just set up a new antenna configuration of a Buddipole with a Triple Ratio
Switch Balun (TRSB). In setting up for 20m I adjusted the antenna to a 1.6:1
SWR, TRSB to 4:1. Reception was great. When I hit the ATU on my K3/100 I saw
it use about 5 watts of power then at the very end of the tuning the K3
jumped to 100 watts for a moment. I have not noticed this before. When that
happened I lost all signal from the antenna. 

After checking that everything was properly connected, maybe an hour, I
tried it again. Reception was great but when I hit the auto tune the same
thing happened. Why??

I am in contact with Buddipole about this but has anyone else had the K3
jump to full power on auto tune? Have I somehow set up something wrong? I am
really green when it comes to SDR and maybe the K3 was well beyond my
current ability. I just got my license back after 40 years and so much has
changed. So I could be screwing this up but I don't know how.

Regards,
Ed  --  KB1ZJK

 

Edward F. Steinfeld
25 Arbor Glen Drive
Stow, MA 01775-1258
Home: (978)897-3127
Cell: (978)376-3146
mailto::edw...@go-embedded.com
http://www.go-embedded.com  
http://en.wikipedia.org/wiki/Mount_Steinfeld 

 

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Re: [Elecraft] K3 to Yaesu Quadra Band Data 2 question

[Joe Subich, W4TV]

I'd like to have my 2nd K3 control the Quadra via the Quadra's Band
Data 2 connector. I'm wondering if this is possible,


Yes.  Note however, there are some issues in using two exciters -
particularly the lack of switching for the TF (tuning) output from
the Quadra.  There are a couple modifications on-line that add an
external relay to provide that function.

Also note that Exciter 1 (Band Data 1) and antenna 1 are automatically
selected when the Quadra is off/bypassed.  Exciter 2 will have no
antenna and the Inhibit line is forced high (no RF from Exciter 2).


if so, if anyone manufactures the needed cable to go between the K3's
accessory connector and the Quadra's Band  Data 2 jack?


Not to my knowledge.  Further,  do not recall any published info on
wiring such a cable - it was not included in N0SS's work - although
one could derive the information from the Quadra Service Manual or
the general interfacing documentation at VA7OJ/AB4OJ's Quadra web
site.

Yaesu offer the CT-178 Connection cable for connecting the FT3000
to the Quadra.  One could modify that cable by replacing the DA15P
on the exciter end with the appropriately wired DE15P.  Similarly,
one could modify the Yaesu CT-118 cable for the FT-450/950/1200 and
Quadra by replacing the miniDIN-10 on the transceiver end with the
appropriately wired DE15P.

73,

   ... Joe, W4TV


On 10/10/2013 1:29 AM, r...@aol.com wrote:

Hi Guys,

Wondering if anyone has successfully used a K3 to control a  Yaesu Quadra
by using the Quadra's Band Data 2 jack?  My K3's has  been controlling a
Quadra via the Quadra's Band Data 1 and it works  well.  But I'd like to have my
2nd K3 control the  Quadra via the Quadra's Band Data 2 connector.  I'm
wondering if this is  possible, and if so, if anyone manufactures the needed
cable to go between the K3's accessory connector and the  Quadra's Band Data 2
jack?  (I've got eye problems and cannot wire  small cables)

Thanks & 73,

Dick- K9OM
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Re: [Elecraft] K3 Roofing filters

[Don Wilhelm]

Paul,

The roofing filters protect the A to D converter input from strong 
adjacent signals, so choose your CW filter according to your operating 
habits.  If you do CW contesting or DXing in pileup situations, you will 
want a narrow filter.


If you are using the K3 as an SWL receiver, you would want either the 13 
kHz or the 6 kHz roofing filter installed.  The DSP audio bandpass will 
go out to about 4 kHz, so if you want full fidelity, choose the 13 kHz 
filter for that - AM bandwidth is double the audio bandwidth.


The DSP width is displayed as the audio passband, the roofing filter is 
at the IF, so for AM double the audio bandwidth.


73,
Don W3FPR

On 10/10/2013 6:06 AM, Paul Barlow wrote:

Dear Elecrafters,

I've been using my K2 for a dozen years and I'm thinking I might go for a
K3. I have a question about RX filtering I'd like to get straight. Is the
widest bandwidth available to the receiver the width of the widest roofing
filter? I was wondering about getting the general coverage receive filter
board, but I wanted to know if I'd be as well to get the AM (6kHz) roofing
filter as well - or could I dial out beyond the stock 2.7 kHz?

My usual mode is CW, so I know I'd want a narrow filter to help with -
although I realise that the DSP does the filtering, the xtal filters provide
roofing.



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Re: [Elecraft] K3 Roofing filters

[Bill W4ZV]

Paul Barlow-2 wrote
> Is the widest bandwidth available to the receiver the width of the widest
> roofing
> filter?

Correct.  If you operate mostly CW, you may be wasting money getting wider
filters than the stock 2.7 kHz...you definitely need a 500 Hz or lower
filter for CW to prevent blocking in the presence of strong (S9+20) signals.

73,  Bill  W4ZV




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[Elecraft] [K3] KRX3 L-mix-R problem

[Brian Machesney]

Suddenly, I can't hear the sub-receiver in the right headphone unless I use
the "Ab-b" option on the "L-MIX-R" menu item. (FYI, the "b-Ab" option also
does not work.) I used the "A-b" option for years. Any clues as to what I
may have inadvertently changed to cause this?

Brian K1LI
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Re: [Elecraft] SideKX

[David Anderson]

Mine arrived this morning, well packed and easy to fit. A quality product that 
matches the Elecraft perfectly. 

73

David Anderson GM4JJJ 

> On 10 Oct 2013, at 09:39, Heinz Baertschi  wrote:
> 
> Tom Rousseau wrote
>> This is the perfect tweak to the superb KX3 design, especially for safely
>> carrying the radio in a backpack.
>> ...
>> Thanks, Scott!!
>> Tom  K7PJT
> 
> 
> In use now for 4 months on my rucksack-friendly portable shack (pics at qrz
> dot com).
> Field-tested on over 60 SOTA activations (not all of these summits were
> grassy hills only...).
> Fully satisfied, highly recommended!
> 
> Heinz HB9BCB
> 
> 
> 
> 
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[Elecraft] K3 Roofing filters

[Paul Barlow]

Dear Elecrafters,

I've been using my K2 for a dozen years and I'm thinking I might go for a
K3. I have a question about RX filtering I'd like to get straight. Is the
widest bandwidth available to the receiver the width of the widest roofing
filter? I was wondering about getting the general coverage receive filter
board, but I wanted to know if I'd be as well to get the AM (6kHz) roofing
filter as well - or could I dial out beyond the stock 2.7 kHz?

My usual mode is CW, so I know I'd want a narrow filter to help with -
although I realise that the DSP does the filtering, the xtal filters provide
roofing.

73,

Paul EI5KI


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Re: [Elecraft] SideKX

[Heinz Baertschi]

Tom Rousseau wrote
> This is the perfect tweak to the superb KX3 design, especially for safely
> carrying the radio in a backpack.
> ...
> Thanks, Scott!!
> Tom  K7PJT


In use now for 4 months on my rucksack-friendly portable shack (pics at qrz
dot com).
Field-tested on over 60 SOTA activations (not all of these summits were
grassy hills only...).
Fully satisfied, highly recommended!

Heinz HB9BCB




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