Re: [Elecraft] Using KAT-500 without BAND Information

[Jack Spitznagel]

Hi Tom,

I am also a very happy KPA500/KAT500 user with an IC7000, 7100, and 7300. I 
home brewed my own interface for the antenna tuner and the “big DIN” connector. 
They all start an autoswitch routine to memorized frequency values that is fast 
and accurate.

I always put the KPA500 in standby when I change bands that require an antenna 
switch over.

Never owned a better Amp/Tuner combo.

Jack - KD4IZ 
Sent from my iPhone

> On Jan 8, 2020, at 19:55, Tom KG3V  wrote:
> 
> Lyn,
> 
> That is very interesting. Maybe I have an issue that I do not understand. It 
> sounds like your setup is working as I would have expected. I also have a 
> 7300, so I will have to give that a try. I do not usually use the 7300 with 
> the KAT-500 and I am a little worried about powering the KAT-500 from the 
> 7300.
> 
> 73,
> 
> Tom, KG3V
> 
> 
>> On 1/8/2020 4:49 PM, Lyn Norstad wrote:
>> 
>> Coming in late on this discussion ... but wanting to add my .02 worth.
>> 
>> I have a setup similar to Tom's, except I have the IC-7300.  With that unit, 
>> the KAT500 does, in fact, follow band changes on the 7300 with the */FIRST 
>> /*TUNE request.  It doesn't matter if I hit TUNE on the KAT, the 7300 or in 
>> software (FT8).
>> 
>> The KPA is already on the correct band, as it DOES follow band changes on 
>> the 7300.
>> 
>> Lyn, W0LEN
>> 
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net 
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX
>> Sent: Thursday, December 26, 2019 12:19 PM
>> To: Tom KG3V
>> Cc: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Using KAT-500 without BAND Information
>> 
>> Check the KAT500 utility to see which antennas are authorized and for which 
>> bands.   You will need to supply RF from the IC7600 in order for the KAT 500 
>> to know what to do.
>> 
>> If you have 2 antennas authorized for the same band that will confuse the 
>> issue.  Also selecting LastUsed may be an issue where band data is not 
>> available.
>> 
>> Bob, K4TAX
>> 
>> Sent from my iPhone
>> 
>> > On Dec 26, 2019, at 10:58 AM, Tom KG3V  wrote:
>> 
>> >
>> 
>> > Don,
>> 
>> >
>> 
>> > Good to hear from you. You helped me many times with K2 questions in the 
>> > past. Thanks for that! Hope you are enjoying the Holiday Season.
>> 
>> >
>> 
>> > I actually meant the TUNE button on the IC-7600. You must have meant on 
>> > the KAT-500, since there is not a TUNE button on the KPA-500. It does not 
>> > seem to matter which TUNE button I press. I think you confirmed that it is 
>> > working as expected. Still a bit annoying. As soon as the TUNE cycle 
>> > starts, of course there is RF. I guess the KAT-500 is not sensing 
>> > frequency DURING the TUNE event. So, any time I switch Bands, I may go 
>> > through a "complete" Tune cycle with an antenna for the wrong Band. Of 
>> > course, that most likely will not complete with a match. The second TUNE 
>> > cycle always selects the desired antenna.
>> 
>> >
>> 
>> > I think I need to send the Band information from the IC-7600 to the 
>> > KAT-500. My other option will be to use only one antenna with the KAT-500 
>> > during Contests. Is it safe to assume that if I send the Band info, this 
>> > would not happen and the first TUNE cycle would be with the "correct" 
>> > antenna?
>> 
>> >
>> 
>> > 73,
>> 
>> >
>> 
>> > Tom, KG3V
>> 
>> >
>> 
>> >
>> 
>> >
>> 
>> >> On 12/26/2019 11:15 AM, Don Wilhelm wrote:
>> 
>> >> Tom,
>> 
>> >>
>> 
>> >> If by "hit the TUNE button", you are referring to the TUNE button on the 
>> >> KPA500, those results are completely understandable.
>> 
>> >>
>> 
>> >> Changing bands on your transceiver is not communicated to the KAT500 yet 
>> >> - (it will only be communicated when you provide RF to the KAT500).
>> 
>> >>
>> 
>> >> So the KAT500 will not switch bands and will attempt to tune on the wrong 
>> >> antenna initially.  Once the KAT500 senses RF, it will know that the band 
>> >> is not correct and will switch to the proper antenna for the band in use.
>> 
>> >>
>> 
>> >> In your second scenerio, you are providing RF to the KAT500 first and it 
>> >> will behave properly, so use that sequence.
>> 
>> >>
>> 
>> >> You should not have any problems with the KPA500 if you have the keying 
>> >> cable run correctly - from the transceiver to the KAT500 and then from 
>> >> the KAT500 to the KPA500.
>> 
>> >> The KAT500 interrupts the keying line to the KPA500 so the tuning is done 
>> >> only with the exciter power level.
>> 
>> >>
>> 
>> >> 73 and HNY,
>> 
>> >> Don W3FPR
>> 
>> >>
>> 
>> >>> On 12/26/2019 9:39 AM, Tom KG3V wrote:
>> 
>> >>> I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND 
>> >>> data, which is in line with recommendations for connecting this radio in 
>> >>> the Elecraft manuals. The documents tell me that RF Frequency-sensing 
>> >>> overrides all other information. I have two antennas enabled. ANT 1 is a 
>> >>> vertical for 10-40 meters. ANT 2 is an 80 meter 

Re: [Elecraft] Noise-cancelling headphones mystery

[Jack Spitznagel]

See if you can borrow a hi quality aviation noise cancelling headset to try 
out. I have the now discontinued Sennheiser S1’s which work extremely well in 
many situations including with a single engine open cockpit aircraft, riding 
mowers, tractors, field day, etc. They have the added nicety of high quality 
adaptive noise cancelling and efficient noise cancelling the mic audio as well. 
Don’t look for “Heil Hi Fidelity” response of the mic. You will sound like you 
are on an aircraft radio but they cancel noise better than anything I have 
tested.

There a number of sets out there that probably perform at that level. David 
Clark, Bose, Lightspeed and others... I just happened on to a great deal for 
the Sennheisers. All run above the $500 mark retail...

KD4IZ 

Sent from my iPhone

> On Dec 9, 2018, at 11:40, CUTTER DAVID  wrote:
> 
> Noise cancelling that I've come across is limited to low/medium frequencies.  
> If your hearing takes you higher, the noise-cancelling has finished by then.  
> This is probably not the ability of the sensing mic but the circuitry and/or 
> room acoustics, echo, etc.  I'm a little out of date on the subject but 
> that's probably the essence of it.
> David G3UNA
> 
>> On 09 December 2018 at 15:26 "Dave Cole (NK7Z)"  wrote:
>> 
>> 
>> As a guess, I would say the response of the mic used to derive the phase 
>> canceling audio does not adequately cover the audio noise spectrum of 
>> the 1500 puts out...  Thus it can't phase cancel very well...
>> 
>> That or your 1500 is filled with bad magic because it is supposed to be 
>> my KPA-1500 and it is mad at you.
>> 
>> 73s and thanks,
>> Dave (NK7Z/NNR0DC)
>> https://www.nk7z.net
>> ARRL Technical Specialist
>> ARRL Volunteer Examiner
>> ARRL OOC for Oregon
>> 
>>> On 12/9/18 5:16 AM, eric norris via Elecraft wrote:
>>> I have owned a pair of Heil noise-cancelling headphones for many years.  
>>> They worked very well to reduce the noise of my old AL-1200 amplifier, and 
>>> the 5 fans on my cantankerous man-killer Henry 2002A EME amplifier.  
>>> However, they are completely ineffective against the KPA1500.  I bought a 
>>> pair of Bose noise-cancelling headphones recently, and they work much 
>>> better but are a bit tinny and eat batteries.
>>> My question for the audio experts on this list is why don't the Heils work 
>>> with the KPA1500?  Does anyone have a recommendation for a pair of really 
>>> good noise-cancelling headphones with a more flat response?
>>> 73 Eric WD6DBM
>>> 
>>> Sent from Yahoo Mail on Android
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Re: [Elecraft] Stupidity vs Absentmindedness - Was: Killed the KPA500 :)

[Jack Spitznagel]

Nope, the Tim Conway reflector.
Jack Spitznagel, DDS, PhD
and KD4IZ... ;@)
see: https://youtu.be/bfTyEtVIe84

Sent from my iPhone

> On Nov 20, 2018, at 22:42, Brian Denley  wrote:
> 
> Is this the Tim Allen reflector? :o)
> 
> Brian Denley
> KB1VBF
> Sent from my iPad
> 
>> On Nov 20, 2018, at 7:45 PM, Fred VE3FAL  wrote:
>> 
>> In my years in the radio and electronics hobby I have learnt that the magic 
>> smoke wants out as well
>> 
>> Fred
>> VE3FAL
>> 
>> Sent from my iPhone
>> Fred VE3FAL/CIW649
>> 
>> 
>>> On Nov 20, 2018, at 19:40, John Simmons  wrote:
>>> 
>>> Ha! I would venture to say that anyone that says they haven't done this 
>>> kind of thing would be fibbing. I've blown up lots of stuff:
>>> 
>>> * When I was in high school electronics class, I wired an AC power
>>> switch in some long-forgotten transmitter in PARALLEL with the power
>>> line instead of SERIES. Fuse? Nah.
>>> * I built a Heathkit SW receiver. I swapped the germanium diodes for
>>> the RF detector with the silicon diodes for the power supply
>>> rectifier. This time there was a fuse.
>>> * I've put many transistors in backwards. The transistors protect the
>>> fuse.
>>> * Many times I've tried to work the local repeater without remembering
>>> to connect the antenna to the radio. I've done this both in mobile
>>> and home stations. I've never blown a final, though.
>>> * Another Heathkit was a vacuum tube voltmeter. I wired all of the
>>> resistors on the 10 position range switch EXACTLY one switch
>>> position off.
>>> * I blew up a $200 LDMOS transistor for an HF amp. I recorded the
>>> whole thing on video and posted it to YouTube. I STILL don't know
>>> how or why the transistor blew. RF Parts was happy to sell me
>>> another one though.
>>> * I had an old pickup truck that I used only for snow plowing. Both
>>> battery cables were black (don't ask why). Every fall I would put
>>> the battery in to prepare for the season. EVERY fall I would hook
>>> the battery cables up backwards. BZZZT!
>>> * I built my own house while working 60 hour weeks at a two-way radio
>>> shop.  I did all the electric wiring in the house. The first circuit
>>> I hooked up was for basement outlets. By mistake I used the cable
>>> for the water heater for the outlet string. BANG! GFI outlets don't
>>> like 240V.
>>> 
>>> That's just the electronic stuff I can remember right now. We had the 
>>> kitchen floor replaced THREE TIMES  because the pipe for the self-installed 
>>> dishwasher leaked.
>>> 
>>> Don't feel bad.
>>> 
>>> -John NI0K
>>> 
>>> P.S. Many, many years ago there was an article in 73 Magazine written by a 
>>> ham claiming that being a klutz was his specialty. He gave lots of 
>>> examples, but the crowning one described how he put out a fire in his car 
>>> (which was in the driveway) with the liquid from his septic tank that he 
>>> happened to be pumping at the same time. I saved the article. Every time I 
>>> read it I get the giggles.
>>> 
>>> kd...@frawg.org wrote:
>>>> Thanks Michael, Andy, and all for the original thread. It made me focus on 
>>>> proper use of my KPA500 which has really done a great job for me since I 
>>>> acquired it and a KAT500 over the summer.
>>>> 
>>>> Retitled this message because I do not want to hijack/derail the original 
>>>> conversation.
>>>> 
>>>> What I want to know... is there no repair for absent minded button pushing 
>>>> and thoughtless antenna positioning?
>>>> 
>>>> So that I don't forget again... A hopefully instructional "mea culpa" 
>>>> follows:
>>>> 
>>>> I have been using the IC-7000 for 2M APRS ops with a Diamond VX2000 
>>>> vertical. Also have been experimenting with HF simplex D-Star and Free DV 
>>>> digital voice recently. The KPA500 has been instrumental for DV ops 
>>>> because of recent squirrely propagation...
>>>> 
>>>> Mistake 1: Over the summer, I forgot to shut down the packet ops and 
>>>> ground 6/2/440 tri-band antenna while using a "nearby" halo with 350 watts 
>>>> 6M DV. That blew the 2M front end of the IC-7000. Matt at SARTS/ICOM in 
>>>> Michigan repaired it and I put together a protection relay circuit to 
>>>> ground the vertical if

Re: [Elecraft] Cableing for KX3 to HRD

[Jack Spitznagel]

Hi John,
It uses the standard KXUSB (or an RS232 equivalent) cable. It configures from 
HRD as a COM# port at a baud rate you set for the radio. I have 4 radios 
configured including my KX3 and can control all four from HRD simultaneously 
from my workstation.
Jack KD4IZ 

Sent from my iPhone

> On Nov 16, 2018, at 09:34, John Pierce  wrote:
> 
> Is there any special cableing required to use HRD software with a KX3?
> 
> 
> 
> John, AD2F
> 
> 
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Re: [Elecraft] relatively newbie - what's your best tip for me?

[Jack Spitznagel]

Congratulations Anne.
My contribution: 
1. Get Fred Cady’s book. (another vote)
2. If you run digital modes with a soundcard device make sure you read the 
advice in the book about setting up the soundcard, paying particular attention 
to setting the ALC level properly. The generic setting information provided in 
the digital program instructions Will Not Work for the KX3. ALC in Elecraft 
radios works differently than any other major brand of tranceiver.
3. Try not to fall in love with it!  Good luck.

Jack KD4IZ 

Sent from my iPhone

> On Sep 22, 2017, at 02:05, Wayne Burdick  wrote:
> 
> Hi Anne,
> 
> Congratulations!
> 
> As the principal designer I can make a few suggestions:
> 
> - Keep the preamp on most of the time. As with most quadrature downconversion 
> radios, this dramatically improves the S/N ratio. Turn off the preamp and/or 
> turn on the attenuator only if you have very strong signals to contend with 
> (like a nearby ham or broadcast station).
> 
> - If you’re a CW op, be sure to try CWT (CW tuning), which can tune in 
> signals automatically when you tap SPOT. Also try APF (audio peaking filter) 
> for CW. It’s a very narrow filter, but works like magic on really weak 
> signals.
> 
> - Data modes are a lot of fun. There’s an RTTY contest this weekend, so by 
> all means tap DATA, select FSK-D mode, turn on text decode using the TEXT 
> switch, and practice tuning in some RTTY signals. You’ll them from about 
> 14080 to 14100 kHz during contests; otherwise, typically 14080-14090. RTTY 
> stations will be decoded and displayed right on the radio’s VFO B display. 
> You can transmit in this mode using the keyer paddle (or the terminal 
> function of KX3 Utility). You can decode/display/send CW and PSK31/PSK63 in 
> the same way.
> 
> - If you’re not hearing much on the bands, check WWV at 5., 10.000, 
> 15.000, and 20.000 MHz. These give you a rough idea of what conditions are 
> like. I find that if WWV is S9+10 dB or stronger on a given frequency, the 
> nearby ham bands should have activity. If not, start it! Call CQ. Also try 
> listening for 6 and 10 meter beacons if there’s a high-frequency opening. 
> Dxmaps.com is a great tool for watching for openings. 
> 
> - The KX3’s LCD is transflective, which means you can read it in direct 
> sunlight. You’ll need to take the radio outdoors for this purpose, and of 
> course that’s what we designed it for (hint!). Of course the display also has 
> a backlight for indoor and nighttime conditions.
> 
> - I hope you won a KXAT3 ATU, too! This makes all the difference when 
> operating portable.
> 
> - You can use any type of AA batteries internally, but I’d recommend Lithium 
> non-rechargeable 1.5 V AA camera batteries. OTOH, if you have the internal 
> charger, you *must* use NiMH cells. When running from internal batteries, 
> recommended power level is 5 W or less. With an external supply you can run 
> up to 15 W on 80-15 m and 10 W on the other bands.
> 
> Have fun!
> 
> 73,
> Wayne
> N6KR
> 
> 
> 
> 
>> On Sep 21, 2017, at 9:54 PM, Anne Dirkman  wrote:
>> 
>> I've had my license since 2011 with very little exposure to amateur radio
>> before that - pretty much started from scratch... Just won a KX3 over the
>> weekend at my DX Convetion.and am looking for guidance. What is the first
>> thing* you wish* *someone would have told YOU* about your Kx3.  Any tips
>> and hints will be considered. .
>> 
>> I'm heading to the Supefest at HRO next weekend and am making my list of
>> what I will need.   I've done some DXing at home and on on the shore and
>> contesting and would really like to get in to portable operation with a
>> minimal amount of setup so I can enjoy the sunny shores of Lake Michigan,
>> operating at the parks and local Maritime Museum.
>> 
>> Started reading the manual overnight, I was told it's a steep learning curve
>> Any suggestions would be appreciated.
>> *--*
>> *Anne Dirkman*
>> *KC9YL*
>> *See you on the air!!!*
>> *73*
>> [image: Picture]
>> *kilo-charlie-nine-yankee-lima*
>> 
>> *-.-  -.-.  .  -.--  .-..*
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Re: [Elecraft] K3s Carry Bag

[Jack Spitznagel]

If you are not worried about run-amok Jeeps and American Tourister gorillas, 
but are worried about weight, you might consider this or the 22 inch version 
for more accessories. My entire KX3/PX3/KXPA100 station plus digital stuff and 
phone fits fine in the smaller.

http://www.mcmelectronics.com/product/22-24115

Not quite as rugged as the high priced original, but passes for carry-on.

Jack KD4IZ 
Sent from my iPhone

> On Jul 18, 2017, at 14:01, Mark Gebhardt  wrote:
> 
> I found a green Coleman 16 can soft side cooler at my local Menards store
> for $17 that fits the K3s radio with manual perfectly. It has a plastic
> liner which is not needed. The sides are nicely padded and it has a front
> pocket for the hand mic and an inside mesh pocket for the power, serial,
> and USB cables. If you don't mind red it looks like it is available at
> Amazon for $11.
> 
> https://smile.amazon.com/Coleman-16-Can-Cooler-Green/dp/B006HFBV2I/ref=pd_lutyp_simh_4_1?_encoding=UTF8_rd_i=B006HFBV2I_rd_r=C02T38BG935Z4FA297TQ_rd_w=ds5qo_rd_wg=mrm2W=1=C02T38BG935Z4FA297TQ
> 
> Your welcome!
> 
> Mark
> 
> K9ZQ
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Re: [Elecraft] mic

[Jack Spitznagel]

Fred,

I have a widget that adapts a Sennheiser S1 av-noise canceler to my KX3. Use it 
for hi noise situations and it works like charm, even Massey-Ferguson mobile. 
Try it with the David Clarks. 
Was connector a mismatched size pair of phone jacks or a complex military 
looking connector?

Jack -KD4IZ 

Sent from my iPhone

> On Jun 11, 2017, at 15:29, Fred Jensen  wrote:
> 
> Just curious ... I inherited a David Clark noise cancelling aviation 
> headset/mic from a neighbor who was a US Forest Service pilot.  I've never 
> tried it, the connector is strange.  I'm not even sure I know where it is 
> right now.  Will it work with my K3 if I can find it and get the connector 
> compatible?  I know they're expensive.
> 
> Maybe it will cancel the powerline noise on 80? [:-))
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:
>> 
>>> On 6/11/2017 2:45 PM, kevino z wrote:
>>> Although headsets like my Heil Pro 7 may be more money, am I really
>>> "wasting" money on buying a "fancy brand name"  considering the
>>> unit consists of mic and incredible speakers?
>> 
>> Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
>> five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
>> (dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
>> Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
>> rated at 96dB/mW and microphones well tailored for voice work. Heil
>> does not even publish the impedance or sensitivity for their headset
>> drivers!
>> 
>> For the price of a Heil Pro 7 one could get a Broadcast headset like
>> the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
>> BRH440M ($249) - all of which are significantly higher quality than
>> the Pro7 (and field proven).
>> 
>> 73,
>> 
>>   ... Joe, W4TV
> 
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Re: [Elecraft] KX3 Deviation

[Jack Spitznagel]

Good question John! With Field Day approaching, I was thinking the same since 
KX3 will not be a primary ops rig. Love to hear the FM gurus speak up.

Jack KD4IZ 

Sent from my iPhone

> On May 26, 2017, at 18:24, John Hendricks  wrote:
> 
> I plan on setting my KX3 with 2 meter module up for packet and wondered if
> anyone had measured the deviation at the standard 4 bars with the 5
> flickering in FM mode?
> 
> John K7JLT
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Re: [Elecraft] New KX2 feature: Internal logging of outgoing CW/data text

[Jack Spitznagel]

And plenty here!
Jack. KD4IZ 
Sent from my iPhone

> On May 17, 2017, at 16:14, Mark via Elecraft  wrote:
> 
> Re:  We hope to add this to the KX3 as well, if there’s enough interest.
> 
> Plenty of interest here!!!
> 
> Mark
> KE6BB
> 
> 
> null
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Re: [Elecraft] OT: HRD multiple "stations" AND portable comfort

[Jack Spitznagel]

Jim, 

I am not an HRD expert, but I have used the feature in DM780 that sets up 
multiple Log Entry profiles to do just what you want. All you have to do is put 
in a profile and a Locator combination for where you are and each rig you might 
use at that location. I have 8 combinations now that I can select depending on 
the situation.

Once you have opened DM780 and the Logbook in HRD, go to the Logbook Menu, 
select My Station, and you will find the editor that lets you create or remove 
as many locations as you need.

Jack KD4IZ 

Sent from my iPhone

> On May 12, 2017, at 16:34, Jim Sr Sturges  wrote:
> 
> First post, and sorry it's off topic.
> 
> I have been fruitlessly searching for a convenient way to switch HRD v6
> between locations and rigs/antennas. Any help?
> 
> As I approach my 72nd birthday, sitting on the ground after throwing a
> randomwire into a tree is difficult. I'd like to find an integral
> lightweight chair/table/sunshade combo to supplement the KX2 go kit. Any
> help there?
> 
> Thanks in advance. Expecting good results from the many contributors I've
> observed while lurking.
> 
> 73 from Greenville, SC,
> 
> Jim, N3SZ
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Re: [Elecraft] KX2/KX3 phone ops during QRPTTF?

[Jack Spitznagel]

Ahhh... my kinda contest... look for activation of the upper Gunpowder 
Falls or Little Gunpowder.
My biggest problem will be that flyfishing, running the KX3, and logging 
at the same time might not be so compatible.

KD4IZ

On 3/10/2017 14:29, John AE5X wrote:

This year's QRP to the Field is 22 April:
http://www.zianet.com/qrp/qrpttf/2017/ttf.htm

Unlike past QRPTTF events, this one has the potential to include a lot of SSB 
activity. In the pre-KX2/3 days most rigs used in this annual event were 
CW-only. I hope non-CW owners of these rigs will consider participating this 
year and, like NPOTA ops who used these rigs, make QRPTTF a multi-mode event.

John AE5X
http://ae5x.blogspot.com/


This Herb Stops Balding Immediately And Restarts Hair Growth
Regrow Hair Protocol
http://thirdpartyoffers.juno.com/TGL3131/58c2fef15f4e97ef161bast04vuc
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Re: [Elecraft] KX3/PX3/KXPA100 - PX3 taking 5 minutes to come on??? KXPA100 loses mind...

[Jack Spitznagel]

Hi Brian,

Well it is usually about 65F(~18C) in the shack this time of year unless 
I turn on the space heater. Not really "cold" per se. The PX3 will 
misbehave on start up or after having been turned off for about 5 min. 
even in warmer times. I guess what I mean by cold is different from 
Canadian cold... :)


Thanks for pointing that behavior out though... temperature may be an issue.

Jack - KD4IZ


On 2/12/2017 16:19, Brian Waterworth wrote:


>>When the PX3 is powered on "cold", it takes about 5 minutes for the
display to light up.


Hi Jack,

I recently experienced something similar to your PX3 situation.  When 
you said "cold", I immediately perked up.


During winter field day, I decided to take my PX3 with me.  Our club 
worked outdoors in about -2C degree weather. The trailer I was in had 
a couple of portable space heaters.  It felt like they were pumping 
out one BTU each :-).  By the time I had the station setup, the temp 
increased to about 9C, maybe.  It was still cold and I had to wear a 
coat.  Anyway, I digress.


When I powered on the PX3, the display was dark.  Picked it up to hear 
the click of the power on.  I heard a click. H.  I tried a couple 
of times.  I disconnected all the inter-connect cables and still no 
display.  I was a bit cold and had just finished exerting a lot of 
energy with the setup (antenna as well), that I just left it 
disconnected and put it away.  I was a bit dejected, but I had to 
focus on the task at hand, because WFD was going to start in moments.  
I should have left it turned on for a little while to see if the 
display came back on after the internal circuitry warmed up a bit.  
But that never occurred to me because every other display in my 
station came to life immediately.


After the PX3 had a chance to settle at home in the warmer climes of 
my shack, I connected everything back up and lo and behold, the PX3 
display lit up.  I was quite relieved.  I wrote off the experience to 
the fact that the PX3 didn't like the cold weather.  I don't either :-)


Anyway Jack, I am happy to be another voice when you go to Elecraft 
support regarding the PX3 display not turning on when the unit is 
cold.  I don't know the actual temperature that the PX3 doesn't like.  
But I never had this issue before.  I can turn on the PX3, when in the 
house, and it comes on immediately after having sat for days in my 
basement shack.


Regards,
Brian
VE3IBW








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[Elecraft] KX3/PX3/KXPA100 - PX3 taking 5 minutes to come on??? KXPA100 loses mind...

[Jack Spitznagel]

All, (particularly Don or one of the kind folks at Elecraft support)

There are two seemingly interrelated problems in this message that may 
indeed be independent.


   All other helpful souls - before you post an answer, please read
   this ENTIRE message. I am a tech type and no stranger to radio -
   computer control systems. I did check cabling to make sure it is OK,
   an solidly seated. Firmware is updated and I configured all devices
   from factory settings.

My trusty KX3/PX3/KXPA100 kit has been on the shelf for an all too long 
respite because the antenna farm was one tree short. It is going back 
into regular service alongside an ICOM 7300 now before I build field day 
and trail "go kits" for my beloved KX3 system. Since it takes about 2 
hours to get everything behaving here - this is going to be a lousy 
EMCOMM and Field Day solution... For the trail, it doesn't matter 
because the KX3 goes alone.


Here goes: As I was bringing things back online today, I found a 
stickynote to self about an issue I had with the PX3 and the KXPA100 
before I stopped using the kit in December. I am still observing the 
following behavior:


When the PX3 is powered on "cold", it takes about 5 minutes for the 
display to light up.


   This occurs regardless of the power on jumper position which is
   currently back in the enable (pin3/4) position.

   This occurs whether the KX3 or the KXPA100 are cabled in.

   Once the PX3 is "warm". I can turn it off and then on again and it
   comes right back to life.

During this PX3 "braindead" period, when the entire setup was cabled up, 
the amplifier will not work properly. To make things more annoying, 
after the 5 minute braindead spell is over and the PX3 is working and if 
the KXPA100 decides to cooperate, I have to go back into the menu, 
enable the KXPA100, then reset the power level for the whole system 
every time this happens... but the PA does not always stay on!!! Then I 
have to tweak the whole system until it decides to work... when the 
KXPA100 is enabled by the KX3 menu, it holds PA MODE ON a moment and 
then reverts to PA MODE OFF without my doing anything.


Today in desperation, I tore everything down and re-connected several 
times and FINALLY all 3 unit talked to each other and the PA stayed on.


This started occurring in the fall of 2016 (September or so), I do not 
recall that any of this happened when I first assembled the PX3 and 
began to use the KXPA100.


So before the inevitable deluge of helpful "Did'ja look" comments come - 
current firmware is :


KX3 is at MCU version 2.38, DSP is at 1.37

PX3 is at MCU revision 1.39

KXPA100 is at revision 1.39

AND ALL units are set for 38,400 and communicate with the computer.

All cables have been checked and are properly seated.

Thanks in advance for your help!

Jack Spitznagel KD4IZ

KX3 #6029 PX3#0941 KXPA#1488

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[Elecraft] FWD: FUN! - 10 Meter POP: May 28 + 29

[Jack Spitznagel]

All,

I am forwarding a note from Ev Tupis, W2EV - the chief concept engineer 
and cheerleader of the PropNET project. I would urge all interested 
folks to join in the 10 meter POP (play-on PropNET) over the Memorial 
Day weekend. Please check out the new software (ACDS) that  Jeff 
Steinkamp, N7YG and the PropNET alpha team have fine tuned over the last 
year.


Two serious KX3 Elecrafter's, Ron, W7HD and myself have been involved in 
this effort for quite some time. On top of the development effort, we 
have learned a huge amount about the behavior of the 10M band over the 
last several years and would welcome some extra participation to expand 
our observations. For some great observations about 10 meters based on 
the PropNET and WSPRnet projects see:


Thanks for considering this great opportunity.

Jack KD4IZ

Some people think that sub-100 level solar flux levels that dip into the 
"high 80's" means "death to 10 meters". Others say "Bullocks!"  What's 
the TRUTH?


Those that have yet to try: you have 2 weeks to power-up using PropNET's 
ACDS^31 client (http://www.PropNET.org) and prepare to POP (Play On 
PropNET)!  Let's ALL get on for the upcoming "Memorial Day Weekend" (May 
28) in the (USA) and Make Magic Happen!


I'll be taking screen shots of our web maps all weekend long to show 
others what can be done simply by pressing that TX button.


What to do now?  Easy!  Download the latest ACDS^31 client from 
http://www.propnet.org/ and activate ahead of time to get the wrinkles 
(if any) worked out.  If you are a soundcard mode operator...there 
should be no wrinkles. ;-)


ACDS^31 will configure you as an Automatically Controlled Digital 
Station (FCC Part 97.221).  Let it run 24-hours a day and it will 
control your station as if you were there.


If you live in a country where this is not possible...no worries! There 
is a feature of ACDS^31 that will screen-prompt you to press (ENTER) 
every 90 minutes.  If you don't, it goes into RX-only (Lurk) mode.


DO NOT set to RX-only (Lurk) mode.  Allow ACDS^31 to have your station 
auto-ID every 10 minutes (6x per hours) using both PSK31 *and* CW.  That 
way, even non-PSK31 folks can park on 28.119 and human-decode ID's over 
a 10 minute period to see where the band is open, too!


By the way, you can set your station to ID every 5 minutes (12x per 
hour) and it would be even better.  REALLY!  ACDS^31 includes 
RX-before-TX QRM avoidance technology!


After that...watch the "Dashboard" tab each day.  It will map "band 
heat".  That is an index that is designed to chart signals in the 
waterfall vs. time-of-day.


Additionally, explore the TEXT MESSAGE feature!  You can setup ACDS^31 
to send you a text message if/when your station decodes DX!  This unique 
feature is a first-person alert of the DX that YOUR station hears...IN 
REAL TIME.


Feel free to FORWARD THIS E-MAIL to other lists that you belong to.  
Because of our QRM-avoidance technology, we have yet to find an upper 
limit to the number of TXing PropNET stations that the waterfall can 
support. ;-)


Get ready to POP on the "Long Weekend" that starts at z 28 May 2016!

Cheers,
Ev, W2EV



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[Elecraft] KX3/PX3/KXPA100 USB control harness noise

[Jack Spitznagel]

I am seeing see about a 1 S-unit jump in this noise above the floor in 
quiet band conditions when I use rig control (any program) on a Dell 
laptop. Rig power supply is quiet.


Before I spend a lot of time reinventing things... and trying to figure 
out how to search the archives for something this specific:


Is there someone who has used ferrites to kill hash noise that only 
occurs with this combination of rig, panadapter, and amp setup when the 
Elecraft Utilities or a rig control program is running?


If so what type of ferrite(s) did you use and where did you place them?

Observation: I can knock the noise down by half by putting a "medium 
sized" clip over ferrite (sorry, it says TEAC on it... no model number) 
right at the box on the KXPA100 to KX3 adapter cable.


That may be the best I can do - if so thanks for reading this and not 
telling me to search the archive...


Jack - KD4IZ



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Re: [Elecraft] Aviation Headset and the KX3

[Jack Spitznagel]

George,

Thanks for posting this suggestion. It took a while for me to get a 
"rountuit" and order one of these. I found it for slightly less from 
Aircraft Spruce. I am using the PA-96 adapter with a Sennheiser S1 noise 
cancelling headset that works beautifully for me by assisting my failing 
ears. I probably need to shape the transmit audio a bit, but have had no 
complaints yet.


Jack - KD4IZ

On 9/4/2015 23:55, George Cortez via Elecraft wrote:

Hi GangI love using a Heil headset with the KX3 but wanted to try something 
with a little more build quality.I have my old Bose X Aviation headset from my 
flying days and set them up for the General Aviation plugs. They are really 
comfortable well made and have active noise canceling built in. I have used 
computer headsets with the K3 and the KX3 in the past and they have worked 
fine.I tried this adapter from 
sportys.comhttps://www.sportys.com/pilotshop/general-aviation-twin-plugs-to-pc-headset-adapter.html?___SID=U
It works fine with the KX3 and I get good audio reports. Just remember to 
unplug it after use as the plugs are the power switch for the adapter. Its a 
lot of cable but the adapter is solidly built and looks like it would last a 
good long time. You need to turn on the bias in the KX3 for any pc headset to 
work. Im sure David Clark GA headsets would work as well but I haven't tried 
them yet. Im tired of the old Head clamps anyway.
George NE2I

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[Elecraft] KX3 2M Transverter install - works but.. weird behaivior.

[Jack Spitznagel]

Question for Wayne and those KX3 gurus who have installed the 2M module:

Installation and setup seemed to go well, however I did have the 
44.000/22.000 display issue that has been previously described. It was 
cured using the suggestion from the list here. After an hour of tuning 
around and sporadically trying to get the local repeater to come up, a 
problem started.  Unit seemed to transmit OK on all bands and all modes.


PROBLEM: The HI CUR warning started to come on 3 - 5 minutes after the 
rig has been turned on and is RECEIVING fine then the rig beeps 3 times 
and turns itself off.


PLEASE NOTE: This only  happens in RECEIVE - all bands and modes 
including 2M. The rig will tune and transmit.


Observations:

Volume is set at about 5
Current is at 0.212 at V0 goes to about 0.230 A with the volume at 12 or so.
Voltage is at 13.7 and rock solid
PA.I reads 27C
OSC reads 32C
The heatsink area at back of the frame is cool to lukewarm.
The SUB indicator was flashing, but turning off the SUB does not change 
the self shutdown behavior.


What is it that is done during the KX3-2M installation that could have 
triggered this? Is it something I could have accidentally tweaked in the 
settings or is this going to trigger a visit to back to Elecraft?


Thanks,

Jack - KD4IZ



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Re: [Elecraft] KX3 won't stop scanning-- help!

[Jack Spitznagel]

Matt,

Many thanks! You have provided a great reason (and a rosetta stone) 
for me to start exploring the command structure. Looks like fun.


Jack - KD4IZ

On 5/11/2014 02:39, Matt VK2RQ wrote:

I had some enquiries about the macros I am using to switch between packet and 
SSB mode, so I did a brief writeup on my webpage:
http://www.vk2rq.ampr.org/macros.html

73, Matt VK2RQ





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[Elecraft] [KX3] HRD/DM80 and a SignaLink

[Jack Spitznagel]

Good Weekend All,

Don't have easy access to search the archives, so at risk of a dup, here 
is a finding from setting up the KX3, SignaLink with the KX3 
Tigertronics made cables, and DM780. HRD works flawlessly with Elecraft 
KXUSB here, but...


Using the little paper instruction insert that came with the SL to KX3 
cables from Tigertronics, it was implied that the KX3 menu entry for 
MicBtn was to be in PTT Up.Dn. Well, that is apparently backwards. The 
system behaves normally if Mic Btn is OFF, and when set as instructed in 
the little sheet, the outgoing data string is transmitted in your 
selected mode, then the SL unkeys (as it should), but the KX3 stays in 
transmit.


When the KX3 is set as the TigerTronic folks suggest, I assume the SL 
vox relay was being overruled by the TX command by KXUSB control 
because tapping the XMIT button on the rig would drop the rig back into 
receive. With PTT set OFF, the SignaLink VOX circuit has proper control.


Had me stumped for a minute.. hope this helps someone setting up in the 
future.


Jack - KD4IZ

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