Re: [Elecraft] WTB - KX2

[Edward McCann]

Skip:
Hope they catch and hang the thieves.

Ed McCann
AG6CX


> On May 22, 2024, at 11:19 AM, skazma...@mindspring.com wrote:
> 
> Someone broke into my truck and stole my pack with my KX2, N3ZN key,
> antennas, and a whole bunch of other stuff. Grrr . My wife and I are leaving
> on a trip of a lifetime this summer, going to Arches, Canyonlands, Grand
> Teton, Yellowstone, and Glacier National Parks and doing two weeks in Banff
> and Jasper National Parks in the middle. I have a little SW-3B, which I can
> use, but I'd really prefer to have a KX2. Elecraft says there's a 12- to
> 16-week lead time (even after I did my best to throw myself on their
> sympathies).
> 
> 
> 
> Anyway, let me know if you have a KX2 (with the internal tuner) (and
> preferably with the internal charger) you'd be willing to sell. I'll pretty
> much pay full retail as long as the radio is working fine (and I'm not picky
> about cosmetic issues).
> 
> 
> 
> Thanks very much,
> 
> 72 Skip K4EAK
> 
> 
> 
> .
> 
> Skip Kazmarek
> 
> Atlanta, GA
> 
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K4D for bargain price on eBay

[Edward Mccann]

Complete with ICOM drink coaster.
AG6CX


> On Mar 13, 2024, at 8:34 AM, Kurt Pawlikowski  wrote:
> 
> Petr,
> 
> Holy guacamole Bat Man!
> 
> kurtt WB9FMC
> 
>> On 3/12/24 12:05, Petr Ourednik wrote:
>> Here is what I am talking about:
>> 
>> https://www.ebay.com/itm/116082357701?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D20230811123856%26meid%3D829caffc5c83464ea264bd0e387c3fc4%26pid%3D101770%26rk%3D1%26rkt%3D1%26itm%3D116082357701%26pmt%3D0%26noa%3D1%26pg%3D4375194%26algv%3DRecentlyViewedItemsV2%26brand%3DElecraft&_trksid=p4375194.c101770.m146925&_trkparms=parentrq%3A339f2a7c18e0a550b8bef368437e%7Cpageci%3A8d03138e-e092-11ee-85ee-76eb76f9a600%7Ciid%3A1%7Cvlpname%3Avlp_homepage
>> 
>> 73 - Petr, OK1RP
>> http://ok1rp.blogspot.com
>> K3 #0778 | K2 # 4800 | K1 #1031 | KX3 # 0602
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to ku...@pinrod.com
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K4D for bargain price on eBay

[Edward Mccann]


Not too worry fellas, the posting notes there are only ten kits available. That 
means the fools errand will have been run by at least ten gullible hams before 
the stock is exhausted.  

The vendor will be up $1500 less whatever he drew from his junk box to complete 
the order.

The Greater Fool Theory meets Maxwell.

Best from the West, 

Ed McCann
AG6CX

> On Mar 12, 2024, at 2:07 PM, Dave (NK7Z)  wrote:
> Alan,
> 
> You are correct, 100%!!  If you want to dupe that kit, buy three FT-240-31 
> cores, and wrap 12 turns of RG-400 around two core.
> 
> The cores are around 6 bucks each, and the RG-400 is around $1.25 a foot...
> 
> Put one core at the feedpoint of your antenna, one at the rig, (probably 
> won't need that one), and then take the third one and wrap 10 to 15 turns of 
> your 12 volt power around it and put it close to the K4.  That will end most 
> of the common mode issues...
> 
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
> 
> On 3/12/24 08:12, G4GNX wrote:
>> It’s a no-brainer. That ad is for an RFI kit only. My question is: Are 3 
>> toroids and some bits of wire worth $150?
>> Unless I was severely disabled, blind or exceptionally lazy, I’d be ashamed 
>> to buy that item!
>> 73,
>> Alan - G4GNX
>> South Coast UK
>> Elecraft K4D / KPA500 / KAT500 / IC-9700
>> 73,
>> Alan - G4GNX
>> South Coast UK
>> Elecraft K4D / KPA500 / KAT500 / IC-9700
>>> On 12 Mar 2024, at 13:42, Kurt Pawlikowski  wrote:
>>> Petr,
>>> Looking at the only listing for anything "K4," I found this 
>>> .
>>>  If that's what you're looking at, it's an "RFI Kit" for a K4, I don't 
>>> think it includes the K4 itself! {'-)
>>> kurtt WB9FMC
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to d...@nk7z.net
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

[Edward Mccann]

Dave:

You may have redefined Poynting’s Theorem!

Ed McCann

> On Apr 7, 2023, at 6:23 PM, Dave New, N8SBE  wrote:
> 
> Don,
> 
> The KPA500 (and K3s) both show the correct wattage - 100W barefoot and about 
> 26W out of the K3s when the KPA500 is inline, and about 500W out of the 
> KPA500.
> 
> I tried changing the P3 SensorCal value from 500 (default) to 350 (min) but 
> that only dropped the wattage shown by a little less than half.
> 
> 73,
> -- Dave, N8SBE
> 
>> On 2023-04-07 16:48, W3FPR wrote:
>> Dave,
>> What power is displayed on the KPA500?  The KPA500 would fault if
>> indeed the K3s is putting out that much power.  The KPA500 power bar
>> is pretty accurate, just a bit coarse in its increments.
>> I think a power calibration is in order for the P3 power indicator.
>> 73,
>> Don W3FPR
>>> On 4/7/2023 2:12 PM, Dave New, N8SBE wrote:
>>> So, I was the guy that had a P3 display/boot problem recently.
>>> I sent it to the mother ship for repair, and they found that (get this) the 
>>> 12V supply was shorted to the 3.3V supply (eep!).
>>> So, a new(er) I/O board (which contains the supplies) and a replacement 
>>> blown 3.3V LCD controller later, I have an (almost) fully functional P3 
>>> again.
>>> EXCEPT, the TX Monitor function is now funky.  It claims that my K3s is 
>>> putting out 873 (or so) watts!  I've tried both sensors (I had a 200W HF 
>>> sensor on the shelf since I added a KPA500 and changed to a 2KW HF sensor), 
>>> and although the scale max changes on the P3 display when I change sensors, 
>>> it still way overstates my output power.  The KPA500 is showing 1360 watts 
>>> on the P3!
>>> I unplugged/re-plugged everything, did a visual inspection of the TX 
>>> Monitor adapter board under a lighted magnifying glass, looking for 
>>> missing/broken SMD resistors or caps, but so far no soap.
>>> I'm wondering if the new revision I/O board is somehow incompatible with 
>>> the older TX Monitor board, or maybe there is a missing 1M-ohm resistor to 
>>> ground on the I/O board at the sensor connector, or an incorrect series 
>>> resistor value there.
>>> And yes, I sent a note to support, but I haven't heard back, yet. Wondering 
>>> if anyone (Alan?) has any ideas where this behavior is coming from.  The 
>>> wattmeter in both my K3s and KPA500 are working normally.  It's just the P3 
>>> wattmeter that's gone off the deep end, now.
>>> Thanks, and 73,
>>> -- Dave, N8SBE
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to w3fpr...@gmail.com
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Mysterious T

[Edward Mccann]

If it were a “Q” it might be from QANon.
T seems safer.

AG6CX 

> On Mar 15, 2023, at 4:17 PM, Richard  wrote:
> 
> On my K3S screen, near the lower right-hand corner there’s a capital T all 
> by itself. 
> 
> It only shows up when in CW mode. I can’t  find any reference to it in the 
> manual, and I’d like to understand it.
> 
> What can you tell me about it?
> 
> I can email you a picture if it might help. Use my home address.
> 
> Cheers!
> 
> Richard Kunc
> W4KBX
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ELECRAFT K3-F P3-F & SP3.

[Edward Mccann]

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ELECRAFT K3-F P3-F & SP3.

[Edward Mccann]


Tnx Julia and Dave;

I just thought it would be enlightening to hear whatever knocks “Rick” had in 
the K4, and if he actually had first hand experience with one or was parroting 
some of the negative spin floating around.

Ray was very convincing on his support of the K4, in any case!!

Good on ya’ Ray.

Ed McCann
AG6CX

> On Mar 2, 2023, at 9:08 PM, Julia Tuttle  wrote:
> Thirded; another bit of context I try to provide is a quote or page number
> when "it's in the manual", and I appreciate it when others do.
> 
> (And, while we're on "ways we can make the list more usable for each
> other": please, if possible, use standard sentence case; EVERY LETTER
> CAPITALIZED and The First Letter Of Every Word Capitalized are needlessly
> difficult to read.)
> 
> 73,
> 
> Julie
> 
> On Thu, Mar 2, 2023 at 4:48 PM Dave (NK7Z)  wrote:
> 
>> I agree...  It would be nice of folks added a bit of context to their
>> replies.  Far too many replies like, "clip the red wire", happen, and
>> without having the entire thread available it is impossible to follow...
>> 
>> 73,
>> Dave,
>> https://www.nk7z.net
>> On 3/2/23 11:39, Edward Mccann wrote:
>>> Missing the correspondence that elicited your response.
>>> Would you be kind enough to forward the incoming from “Rick” ?
>>> Thanks,
>>> Ed McCann
>>> AG6CX
>>>> On Mar 2, 2023, at 11:16 AM, Ramon Batista  wrote:
>>>> We Did A Comparison Here At Home With Anan 7000-Flex 6400M-K4D , Live
>> And
>>>> With Signal Generator , Putting Noise And Carrier Signals At Filters
>>>> Bandwidth Edge Of All If Them, Injecting S1 Level And Listening To S2-3
>>>> Stations And I’ll Keep K4D By The Results. Is My Personal Experience
>> Rick.
>>>> 73’s.
>>>> __
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Elecraft@mailman.qth.net
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>> Message delivered to edwmcc...@gmail.com
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to d...@nk7z.net
>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to ju...@juliatuttle.net
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ELECRAFT K3-F P3-F.

[Edward Mccann]

Hi Rat:

This is your response to what was probably a very interesting question with 
comments from someone named Rick, apparently  comparing your K4 to something 
else. 

I was curious as to your incoming from Rick.

Good luck wit the sale of your gear. Should go like hotcakes!

73
AG6CX

> On Mar 2, 2023, at 10:51 AM, Ramon Batista  wrote:
> 
> Hi Rick,
> 
> K4D Has No Comparison Rick, I Have The Complete Collection Of Elecraft From
> K1 Through K4. By My Experience With K4 Since 6 Months Ago I Can Tell You
> That Other Radios Can Have A Better Looking Waterfall And Scope, Fancy
> Colors And Finishing, TX Equalizers With Infinite Frequency Ranges, But In
> My Case What Matters Is Selectivity, Sensitivity, Dynamic Range, Fast And
> Accurate RX-TX Switching, Especially For CW. I Can Get Ride Of The Other
> Radios But K4D-K3S-K2100 Will Stay Here. Thank You, 73’s.
> 
> Ray WD4X
> 239-227-9414
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ELECRAFT K3-F P3-F & SP3.

[Edward Mccann]

Missing the correspondence that elicited your response.

Would you be kind enough to forward the incoming from “Rick” ?

Thanks,

Ed McCann
AG6CX

> On Mar 2, 2023, at 11:16 AM, Ramon Batista  wrote:
> 
> We Did A Comparison Here At Home With Anan 7000-Flex 6400M-K4D , Live And
> With Signal Generator , Putting Noise And Carrier Signals At Filters
> Bandwidth Edge Of All If Them, Injecting S1 Level And Listening To S2-3
> Stations And I’ll Keep K4D By The Results. Is My Personal Experience Rick.
> 73’s.
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K3 sale

[Edward Mccann]

I hope the sale is pending, not the radio !!


> On Feb 26, 2023, at 1:13 PM, bht...@juno.com wrote:
> 
> Thanks to everyone who was interested in my sale
> of the K3 #5024. The radio is pending.
> 
> 73,
> Brian K1DIH
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K4 recommendation - wait for HD or no?

[Edward Mccann]

Back in the day, the difference between nursery take and sea story was:

Nursery story began, “A long time ago, in a land far away, ….” 

Sea Story began, “Now this is no Sh*t….”

Ed McCann 
AG6CX 

> On Jan 18, 2023, at 6:40 PM, Wes  wrote:
> 
> That's a story alright.
> 
> 
>> On 1/18/2023 7:01 PM, John Simmons wrote:
>> I recall reading *somewhere* the story of two hams that lived in adjacent 
>> lots about 300-500 feet apart. They cooperated and tried lots of remedies to 
>> eliminate interference with each other. They each wound up with a K3. When 
>> the upgrades for the 'S' became available, both installed the appropriate 
>> options in their K3 radios. After that they could operate within 10 KHz of 
>> each other without knowing- at legal limit. YMMMV
>> 
>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] 12 v power source for Elecraft Transceivers

[Edward Mccann]

Mystery solved.

AC out, label in error, autopsy reveals no inner circuitry!

Boat anchor or garage sale.

Clearly case of stimulation of overactive ham hormone resisting disposal of 
anything looking potentially useful.

Thanks all!

Ed McCann
AG6CX

> On Dec 6, 2022, at 10:47 AM, Edward Mccann  wrote:
> 
> Tnx Jim.
> Label claims  to be 12DC out, but clearly needs to be measured as 
> investigation proceeds!
> Minimal specs, but autopsy underway.
> 
> Ed McCann
> AG6CX
> 
> 
> 
>>> On Dec 6, 2022, at 10:29 AM, Jim Brown  wrote:
>>> 
>>> On 12/6/2022 10:16 AM, Edward Mccann wrote:
>>> Slightly off topic, I will admit, but in reworking garden walkway 
>>> low-voltage (12 v DC) I made surplus a 200 VA transformer.
>> 
>> Is what you have a transformer (two windings on ferrous core, providing low 
>> voltage AC) or a power supply (transformer plus circuitry to provide DC 
>> output?
>> 
>> 73, Jim K9YC
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] 12 v power source for Elecraft Transceivers

[Edward Mccann]

Tnx Jim.
Label claims  to be 12DC out, but clearly needs to be measured as investigation 
proceeds!
Minimal specs, but autopsy underway.

Ed McCann
AG6CX



> On Dec 6, 2022, at 10:29 AM, Jim Brown  wrote:
> 
> On 12/6/2022 10:16 AM, Edward Mccann wrote:
>> Slightly off topic, I will admit, but in reworking garden walkway 
>> low-voltage (12 v DC) I made surplus a 200 VA transformer.
> 
> Is what you have a transformer (two windings on ferrous core, providing low 
> voltage AC) or a power supply (transformer plus circuitry to provide DC 
> output?
> 
> 73, Jim K9YC
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] 12 v power source for Elecraft Transceivers

[Edward Mccann]

Slightly off topic, I will admit, but in reworking garden walkway low-voltage 
(12 v DC) I made surplus a 200 VA transformer. 

This may sound ridiculous, but have any readers had experience using such a 
transformer as DC power source for our 12v Elecraft transceivers?

Certainly linear, but only binary controls  (on or off), circuit breaker 
protected to AC Mains.

(Yes, sun light detector removed to allow use day or night.)

I know some have in the past suggested such devices as a source for insulated 
wire used in balun construction, but we have moved beyond that notion for a 
variety of reasons.

Suggestions, besides boat anchor?


Ed McCann
AG6CX


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Running high power

[Edward Mccann]

Kent:

I find that while your named expert with “more practical research than anyone 
on the planet”will likely claim expertise in just about anything, I have never 
seen anything observational, analytical, or anecdotal written by him on RFI in 
general or specifically associated with the OCFD.

I suggest you stick with K9YC, Owen Duffy and Tom Rauch.

Ed McCann
AG6CX

> On Nov 24, 2022, at 8:46 AM, K9ZTV  wrote:
> 
> Amen to everything Steve says.
> 
> DJ0IP, who has done more practical research on off-center-fed dipoles than 
> probably anyone on the planet, has concluded they are fine up to 500-700 
> watts, but problematic above that and not recommended.
> 
> 73,
> Kent
> K9ZTV
> 
>> On Nov 24, 2022, at 9:37 AM, Steve Hall<99sun...@gmail.com> wrote:
>> 
>> Certainly as you increase power you are more likely to cause undesirable
>> effects in the home.  Now I am going to make a generalization that I have
>> found true.  The antenna type makes a significant difference in
>> interference.  Unbalanced antennas introduce more RF into the home as
>> opposed to balanced antennas.  An end-fed or off-center fed causes far more
>> problems than a dipole or inverted Vee.   I have proven this to myself over
>> and over.
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to k9...@socket.net 
>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Running high power

[Edward Mccann]

Ed:

If she’s lucky she could stream it on her new I-pad you buy her for Christmas !

Ed McCann
AG6CX

> On Nov 23, 2022, at 8:42 AM, Ed Cole  wrote:
> 
> I only have one RFI issue with my K3+KXPA100: running 80w on 50.125 SSB.
> 
> Seems my wife has her portable radio tuned to 100.1 MHz FM in the next room.  
> 50.125 x2 = 100.25 "ouch"!
> 
> Antenna is 20-foot high on tower attached to end of the house.
> 
> Guess I need a "good" harmonic filter.
> 
> I had one on my Harris 1000w 6m amp (converted ch.2 TV amp), but it was sold 
> with the amp.
> 
> When I get my MRF-1K50H LDMOS amp running 1200w on 160-6m will be interesting 
> to see how well the LP filters do. 
> 
> 73, Ed - KL7UW
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Elecraft contesting success

[Edward Mccann]

FB on the K4.

Any description of antenna farm attached to it?

Thanks.

Ed McCann
AG6CX

> On Nov 6, 2022, at 9:28 AM, Martin Sole  wrote:
> 
> Kudos to my very good friend Ken, K4ZW, for his stellar CQWW SSB 
> performance. Claimed score on 3830 of 6,280,820 points being #1 in the US and 
> #7 worldwide.
> 
> Whilst undoubtedly Ken's skill, honed over many years, and his rather 
> herculean (at least to me) 45 hours in the chair contributed to his success, 
> I think we can all agree that Ken's new Elecraft K4 played a major role not 
> to mention his K3 second radio.
> 
> Well done Ken and Elecraft.
> 
> Martin, HS0ZED
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] AX1 dipole

[Edward Mccann]

Re: Jim Brown’s comment.
> 
> also linked to a long paper that studied the effect of mounting height on 
> both horizontally and vertically polarized antennas. 


Would you mind posting the link. I must have missed it in the traffic. 

Thank you,

Ed McCann
AG6CX
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] For Sale - "K-line" Covers

[Edward Mccann]

Dave-
I’ll take them.
Ed McCann
AG6CX
Sausalito

> On Aug 24, 2022, at 5:53 PM, David Inger  wrote:
> 
> Recently I sold my K3 and P3 to partially fund my new K4.  I have set of 
> barely used covers that are in excellent (dare I say new?) condition.  The 
> way I ended up arranging my equipment there was very little need to cover the 
> various pieces.
> 
> The covers were made by Pat Osborne, KI4RFT.  They are made very high quality 
> felt-backed black vinyl. Each cover is embroidered in gold with "ELECRAFT" 
> and the equipment model.  The four covers are for the:
> 
> * K3
> * P3
> * KAT500
> * KPA500
> 
> I want to sell them as a set, rather than messing around with multiple 
> shipments.  $50.00 will get you the complete set including shipping.   Please 
> no PayPal.  I will accept USPS M.O., personal check, Venmo or Zelle.  Or, if 
> you are in the vicinity of Santa Barbara, CA you are welcome to pick them up.
> 
> 73 de K6SBA
> 
> David Inger
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] KX2 on commercial airplane

[Edward Mccann]

Skip, 

I tried telling the TSA guy a little box of electronics and such was for my 
hearing aid.
He thought I was spoofing him and called his supervisor when he asked if it 
received Fox News, and I said not in my house. I explained it was the Bluetooth 
gear for broadcasting TV audio into the earpiece. A little demo for the TSA 
folks was cordial but I almost missed the flight.

One step for man, a giant step for mankind.

Ed McCann
AG6CX

> On Jun 27, 2022, at 11:02 AM, Skip Davis via Elecraft 
>  wrote:
> 
> Bill I haven’t had any problems with having my KX2 in my carry on bag, even 
> with mic and headset along with other interconnecting wires. On my last trip 
> I got flagged because of all the gear. While explaining to the TSA agent 
> about ham radio I actually powered up the KX2 and showed him how it worked, 
> he thought it was pretty neat. 
> By the way it wasn’t the KX2 they wanted to checkout it was something else. 
> 
> Skip Davis, NC9O
> Sent from my iPhone
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Field Day and FT-8

[Edward Mccann]

Well stated Nate.

As the Buddha said from his dying bed: 
“Strive on, untiringly.”

I am tempted to add, there but for a mentor administering with grace, go us 
all. 

Ed McCann
AG6CX

> On Jun 26, 2022, at 5:02 PM, Nate Bargmann  wrote:
> 
> * On 2022 26 Jun 17:18 -0500, Jim Rhodes wrote:
>> They weren't only on digital modes like that. Plenty of "all knobs all the
>> way to the right" operators on phone too. Of course that is nothing new on
>> Field Day.
> 
> I think there was at least one who didn't have the knob far enough to
> the right.  On the morning traffic net we had a station come up to pass
> a Field Day message.  The SSB audio was so poor that even though the
> signal strength was adequate, it was pinched to very high audio
> frequencies and only had adequate voice power on emphasized syllables
> and then it dropped down so far that it was unintelligible.  Two of us
> experienced ops with home stations could not make out the complete
> message after several tries.
> 
> The operator notes on the QRZ page to be almost completely a CW op.  I'm
> not sure if this was the op's first attempt at SSB or if the TX audio was
> never set up over the air with an experienced SSB op.  It's also
> possible the op has an unfortunate voice disability, I don't know as I'd
> never heard the op on the net frequency before.  I do hope the issue is
> sorted with a trusted friend.
> 
> We have to be willing to inform other ops when there are even minor
> issues and accept reports of such issues with our own signals with
> grace.
> 
> 73, Nate, N0NB
> 
> -- 
> "The optimist proclaims that we live in the best of all
> possible worlds.  The pessimist fears this is true."
> Web: https://www.n0nb.us
> Projects: https://github.com/N0NB
> GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Fwd: Astron RS-50M 13.8 vdc Linear Power Supply

[Edward Mccann]

Phil:

I’ll give you $100 if you drop it at a Ups and tell them to wrap and send it.

I tried my brother on Bainbridge Islamd, but he was spooked by the ferry.

Ed McCann
AG6CX

> On Jun 18, 2022, at 4:50 PM, Phil Hystad via Elecraft 
>  wrote:
> 
> 
> Gang,
> 
> Not having nearly as many Elecraft rigs as I used to have, I do not need my 
> Astron RS-50M power supply anymore.  Plus, maybe I am getting to old to lift 
> it.  It is a linear power supply so has a real iron content more than 
> anyone’s daily dosage requirement.  Shipping weight is 46 lbs.
> 
> Here’s the thing — I would like to sell it to a local guy (Puget Sound Area, 
> Washington) so I don’t have to pack this up and ship it anywhere.  It is not 
> the expense, it is the hassle.
> 
> It is in perfect working condition with the exception that the little neon 
> lights for for a backlight on the meters no longer shine as brightly — 
> truthfully, they don’t shine at all.  But, I never needed that nor did I ever 
> really make use of the meters so I have not bothered to fix that.  I see that 
> the newer models now
> use LED lights so maybe if you buy this you can switch over to LED.
> 
> Any interest?  I can’t remember what I paid for it but I am pretty sure it 
> was over $300.  So, to move this quickly, I will let it go for $50 if you 
> pick it up at my QTH in Kirkland, WA.
> 
> In summary:
> 
> For Sale:  Astron RS-50M 13.8 vdc Linear Power Supply
> 
> Price:  $50 for pickup by you in Kirkland, WA 
> 
> It is in good working condition and you can test it here before you close the 
> deal.  I just now tested
> the output voltage (no load test) with my Fluke 187 DVM and it reads 13.8 
> volts.l
> 
> Thanks,
> 73, phil, K7PEH
> 
> P.S.  You could buy it for $50 and then sell to someone else for more $$ and 
> make a profit.
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Elecraft CW Net Report

[Edward Mccann]

Kevin - remind us all where you is.

Ed McCann
Sausalito CA
AG6CX

Sent from my iPhone

> On Jun 5, 2022, at 7:35 PM, kevin  wrote:
> 
> Good Evening,
> 
>Propagation was marginal, noise was strong, and QSB was moderate.  One day 
> this cycle will improve.  The twenty meter frequency was popular.  I had to 
> move twice before I could start the net.  I thought the lull in solar 
> activity would provide a window of better propagation.  Hope springs eternal 
> :)
> 
>There was some sun today.  Now the mist is back.  The ferns are five feet 
> tall and just starting to open.  Leaves are mostly open and the fir trees are 
> spouting new growth.  The fresh needles should bring the deer back.  I 
> haven't seen one on my land this year.  I did see my first snake of the year 
> soaking up sun.  They like slipping into the greenhouse to eat slugs.
> 
> 
>   On 14051 kHz at 2200z:
> 
> K4TO - Dave - KY
> 
> K6XK - Roy - IA
> 
> NO8V - John - MI
> 
> K0DTJ - Brian - CA
> 
> 
>   On 7047.5 kHz at z:
> 
> K0DTJ - Brian - CA
> 
> K6PJV - Dale - CA
> 
> 
>Until next week 73,
> 
>   Kevin.  KD5ONS
> 
> 
> 
> -
> 
> 
> 
> 
> 
> memory leaks are not your friend
> 
> 
> Could someone please visit   http://bacona.design/bird.html   and report any 
> error messages you get?
> 
> I can't fix what I can't see.
> 
> 
> 
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Receiver impedance?

[Edward Mccann]

Thanks for the aviation history Wes.

I was mostly thinking about your comment:

“ I never had the heart to tell him that the minute the AGC activated, all bets 
were off.”

73
Ed McCann
AG6CX

Sent from my iPhone

> On May 25, 2022, at 2:19 PM, Wes  wrote:
> 
> https://theaviationgeekclub.com/how-the-f-14-tomcat-sharpened-his-teeth-the-story-of-the-six-on-six-missile-shot-test/
> 
>> On 5/25/2022 12:50 PM, Edward Mccann wrote:
>> Hope the Phoenix Missile hit its target!
>> 
>> Ed McCann
>> AG6CX
>> 
>> 
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Receiver impedance?

[Edward Mccann]

Hope the Phoenix Missile hit its target!

Ed McCann
AG6CX

Sent from my iPhone

> On May 25, 2022, at 12:46 PM, Wes  wrote:
> 
> About 40 years ago I was a Responsible Engineer for the Phoenix Missile 
> Receiver/Transmitter Unit (RTU). This was a monopulse radar and my unit fed 
> ~30 MHz i-f signals to the following Electronics Unit (EU) which did the 
> signal processing.  The EU test position had a Collins 51S-1 receiver in it 
> just to measure the output levels of the RTU.  As usual there was always 
> finger pointing when specs weren't met.  As a referee a PhD was brought in to 
> analyze the interface of the two units.  At one point he focused on the input 
> match of the 51S-1 and since I was the RF guy, I was asked to measure it.  
> The numbers are fuzzy but suffice it to say, he wasn't happy and asked me to 
> fix it.  I gathered up some General Radio airline stuff and built a 
> double-stubbed tuner and got it to about 40 dB return loss.
> 
> He came back about an hour later with two pages of equations, written in 
> mouse-type that almost required a magnifier to read, and happily announced 
> that his "quick analysis" showed that the error would be some (unmemorable) 
> fraction of a dB.  Everyone was happy.
> 
> I never had the heart to tell him that the minute the AGC activated, all bets 
> were off.
> 
> So the answer to the question is, it depends.
> 
> Wes  N7WS
> 
> 
>> On 5/25/2022 11:18 AM, Walter Underwood wrote:
>> Thanks. I’ll make a wild generalization that transceivers are generally 
>> designed for the receiver portion to be 50 Ω.
>> 
>> Anybody have an idea about SWL receivers?
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/ (my blog)
>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] The Dreaded 400 Hz hump

[Edward Mccann]

Equally revealing is the audio gram of the average over 70 American male’s high 
frequency response. I’d show you mine but it’s so bad it’s classified. 
Typically falls off dramatically in the high end over time. Mine looks like 
Niagara Falls.

Glad to have some way to electronically compensate for those years in the 
engine room and winds of the South China Sea whistling through ears on the 
bridge wing.

Ed McCann
AG6CX

Sent from my iPhone

On May 20, 2022, at 6:31 PM, Joe Subich, W4TV  wrote:


On 2022-05-20 8:36 PM, jerry wrote:
> I remember reading a magazine article many years ago...

QST, Dec 1977, Nov and Dec 1978 also the ARRL Handbook, 57th
Edition (1980).

> They showed a hole of frequencies in the normal human voice audio spectrum 
> where there is not much energy.  It was proposed to create
> a new modulation where the higher frequencies would be shifted down
> into the hole - thus letting the SSB signal take up less spectrum -
> and then shifting those audio frequencies back up at the receive
> end.

I think it was called NBVM (narrow band voice modulation).  Used
a hard lowpass filter around 600 Hz to preserve the low audio,
a bandpass filter to "select" 1500-2500 Hz, a balanced modullator
with a 3100 Hz "carrier" and pandpass filter to select the lower
sideband.  This resulted in the 1500 - 2500 Hz audio being inverted
into 600 Hz - 1600 Hz and the total transmitted voice bandwith of
just 1400 Hz (200-1600 Hz).


73,

  ... Joe, W4TV


On 2022-05-20 8:36 PM, jerry wrote:
> I remember reading a magazine article many years ago... They showed a hole of 
> frequencies in the normal human voice audio
> spectrum where there is not much energy.  It was proposed to create a new 
> modulation where the higher frequencies would be
> shifted down into the hole - thus letting the SSB signal take up less 
> spectrum - and then shifting those audio frequencies
> back up at the receive end.
>   Thinking about it...that's the sort of thing I would have expected to read 
> in Ham Radio magazine.  I miss it.
> - Jerry KF6VB
> On 2022-05-20 17:10, Walter Underwood wrote:
>> About seven years ago, there was an extended discussion on this list
>> about equalization settings for transmit. I collected all the settings
>> people used and posted about the majority contour.
>> 
>> https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/
>>  
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/ (my blog)
>> 
>>> On May 20, 2022, at 6:07 PM, Bob McGraw  wrote:
>>> 
>>> Oh yes it is there on many SSB signals where the OP is a male. That is 
>>> where most of the fundamental male voice energy occurs. Those signals which 
>>> look uniform across the SSB TX bandpass do sound good.
>>> 
>>> I attribute this to the fact most hams will "boost this and boost that" and 
>>> never give thoughts to attenuating.  In fact the characteristics of the EQ 
>>> in the boost mode are noticeable different than the attenuate mode.  Yes, 
>>> one can hear the difference.
>>> 
>>> In my world of pro audio, it is a practice to attenuate first and then 
>>> boost if absolutely necessary.   Hams just can't get over the fact they 
>>> must always have more...boost boost boost.
>>> 
>>> So if ones signal is muddy or bassy, what's to do?   Attenuate the low end 
>>> first, and rarely if ever,  boost the high end.  Of course boosting the 
>>> high end will make it brighter, but not attenuating the low end will 
>>> consume lots of unnecessary transmitter power not being used for effective 
>>> communications. 50Hz - 16dB, 100Hz -16dB, 200Hz - 16dB, 400Hz - 9dB, 800Hz 
>>> - 0dB, 1.6kHz - 0dB, 2.4kHz +0dB, 2.4kHz +3dB, 3.2kHz + 6 dB.
>>> 
>>> Works for me.
>>> 
>>> 73
>>> 
>>> Bob, K4TAX
>>> 
>>> On 5/20/2022 4:30 PM, elecraft-requ...@mailman.qth.net wrote:
 Message: 8
 Date: Thu, 19 May 2022 02:14:10 + (UTC)
 From: Al Lorona
 To: Elecraft Reflector
 Subject: [Elecraft] [OT] The dreaded 400 Hz hump
 Message-ID:<1840135010.161126.1652926450...@mail.yahoo.com>
 Content-Type: text/plain; charset=UTF-8
 
 Have you studied how SSB signals look on your panadapter? I believe about 
 90% of all phone signals have a very pronounced peak at about 400 or 500 
 Hz. This peak is sometimes 10 dB (or more) higher than the rest of the 
 bandwidth. This is wasted power and, to my ear, makes signals sound 
 muddier.
 
 On the other hand, every once in a while you'll see a signal that has a 
 more or less flat frequency response, without any huge peaks. Sometimes, a 
 signal will actually have slightly*more*  power in the higher frequencies, 
 say, 2000 Hz and higher. I've noticed that these signals have much more 
 articulation and punch. But these signals are all too scarce.
 
 It's pretty well known that the aging population of hams collectively 
 suffers from a high frequency 

Re: [Elecraft] Antenna Quandary

[Edward Mccann]

Concur.

Slack reasonable cut.

No dumb questions, just dumb answers, from time to time.

But I’m amazed at the restraint shown by many who are avoiding the tithe of 
arms-appointed expert, especially when we have a passel of Big Swinging Dudes 
on the line.

The query might have been a bit more foucssed, or tailored to the K line. But 
maybe Santa Cruz has a proprietary dipole in the back room I missed.

73,

Ed McCann
AG6CX

Sent from my iPhone

On May 11, 2022, at 7:37 PM, Gwen Patton  wrote:

*"On the other hand, cutting the guy some slack is ok too. This is a tough
room but the only dumb question is the one you don’t ask."*

I dunno... "Is the Pink Panther a lion" is up there in essential dumbitude.

https://youtu.be/J0UVlPmhY0A

73,
Gwen, NG3P

On Wed, May 11, 2022, 10:20 PM Lou Laderman via Elecraft <
elecraft@mailman.qth.net> wrote:

> On the other hand, cutting the guy some slack is ok too. This is a tough
> room but the only dumb question is the one you don’t ask.
> 
> 73, Lou W0FK
> 
> Lou Laderman
> Sent from my mobile device
> 
> On May 11, 2022, at 9:09 PM, Edward Mccann  wrote:
> 
> Entirely possible this is a late April Fool’s query, or a freshman
> fraternity prank designed to bring out the blowhards who will profess
> knowledge of most things.
> 
> When and if the  query is expanded to source commentary from those
> “super-well versed” in the behavior of the OCFD,  from under the rock will
> come more than you ever bargained for.
> 
> 73,
> 
> Ed McCann
> AG6CX
> 
> Sent from my iPhone
> 
> On May 11, 2022, at 6:39 PM, Andy Durbin  wrote:
> 
> "Anybody out there super-well versed in the behavior of the half-wave
> dipole?"
> 
> There are only two possible answers:
> 
> Yes
> No
> 
> I speculate that, given the expertise of this group, "Yes" is the right
> answer.  However, I have no clue how the answer to your question will be
> useful to you.
> 
> I suppose the resulting answers may be more informative than "why didn't
> my package carrier meet my expectations?".
> 
> Andy, k3wyc
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to llader...@icloud.com
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ard...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Antenna Quandary

[Edward Mccann]

Entirely possible this is a late April Fool’s query, or a freshman fraternity 
prank designed to bring out the blowhards who will profess knowledge of most 
things.

When and if the  query is expanded to source commentary from those  “super-well 
versed” in the behavior of the OCFD,  from under the rock will come more than 
you ever bargained for.

73,

Ed McCann
AG6CX

Sent from my iPhone

On May 11, 2022, at 6:39 PM, Andy Durbin  wrote:

"Anybody out there super-well versed in the behavior of the half-wave dipole?"

There are only two possible answers:

Yes
No

I speculate that, given the expertise of this group, "Yes" is the right answer. 
 However, I have no clue how the answer to your question will be useful to you.

I suppose the resulting answers may be more informative than "why didn't my 
package carrier meet my expectations?".

Andy, k3wyc

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] SK Station Disposition

[Edward Mccann]

To Ed’s point:

“Some states recognize memorandums of personal property as legally binding, but 
there are 20 states that don’t categorize them as legitimate legal documents, 
including West Virginia, Vermont, Texas, Tennessee, Pennsylvania, Rhode Island, 
Ohio, Oklahoma, New Hampshire, North Carolina, New York, Mississippi, Kentucky, 
Maryland, Louisiana, Illinois, Alabama, Georgia, and Connecticut.”


Ed McCann
AG6CX

Sent from my iPhone

> On Apr 24, 2022, at 7:08 PM, Edward Dauer  wrote:
> 
> Related to the thread on helping other hams' families deal with their
> stations after they go SK, there is an idea that I think I mentioned on the
> Reflector a couple of years ago, but which may be worth repeating given
> that the general subject has come up again.  I have to begin but saying
> that, though a lawyer myself, I should not be understood as offering legal
> advice with the following note.  I mention it only as something anyone
> interested might want to pursue with their own counsel.
> 
> Wills are complex instruments and, by themselves, sometimes cumbersome in
> dealing with personal property -- like amateur radio equipment -- that may
> change in shape and value over time.  Amending a will can sometimes be a
> big, by which I mean costly, deal.  In many states, if not most, there is
> another way.  It's called various things in various places, though where I
> live it's called a Memorandum Disposition of Personal Property.  It's a
> document that anyone can write, amend, tear up, whatever, at any time
> without going through the trouble of amending a will or a trust.  If the
> Will correctly refers to it, the document becomes an effective way of
> directing the disposition of tangible personal property.  Using the proper
> form at the outset I can describe what I want to have happen to my station,
> or any piece of it, in a simple document that alone can write.  If the
> equipment list changes, and I want to change where the rest goes, I can
> change the Memorandum.  No need to amend the Will or a testamentary trust.
> 
> I should stop there, and say only that it's not widely known but t's worth
> looking into.
> 
> Ted, KN1CBR
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Shipping via UPS - A Lesson Learned the Hard Way

[Edward Mccann]

A fatal self-inflicted wound if awaiting or not expecting but receiving a UPS 
shipment from someone, somewhere.

AG6CX 

Sent from my iPhone

> On Apr 12, 2022, at 6:18 AM, KE8G  wrote:
> 
> Very easy go into your email settings and write a rule that if an email
> comes in containing "UPS" is it sent to the Trash basket.
> 
> 73 de JIm - KE8G
> 
>> On Tue, Apr 12, 2022 at 9:04 AM Julia Tuttle  wrote:
>> 
>> Y'all, nobody was calling for the thread to stop. They were literally
>> asking for a technical solution to not *personally* keep seeing it.
>> 
>>> On Tue, Apr 12, 2022, 07:58 Bert Craig  wrote:
>>> 
>>> Amen!
>>> 
>>> "I fail to understand the hardship of using the delete key."
>>> 
>>> #MobCensorshipStinks
>>> 
>>> 
>>> 
>>> Sent from MailDroid
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> 
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to ju...@juliatuttle.net
>>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to ke8g@gmail.com
>> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K4D R29 beta ESSB and CESSB - Rolls off low end TX frequency response when COmp at 1 or higher.

[Edward Mccann]

Morgan?

Sent from my iPhone

> On Apr 6, 2022, at 10:02 AM, Edward Mccann  wrote:
> 
> What on earth?
> 
> Jack, how about decrypting your comment? My Enigma Machine is ln the shop for 
> repair
> 
> AG6CX 
> 
> “As
> long as I do not sound like some woke disney donald duck character”
> 
> Sent from my iPhone
> 
>> On Apr 6, 2022, at 2:57 AM, Morgan Bailey  wrote:
>> 
>> As
>> long as I do not sound like some woke disney donald duck character
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] K4D R29 beta ESSB and CESSB - Rolls off low end TX frequency response when COmp at 1 or higher.

[Edward Mccann]

What on earth?

Jack, how about decrypting your comment? My Enigma Machine is ln the shop for 
repair

AG6CX 

“As
long as I do not sound like some woke disney donald duck character”

Sent from my iPhone

> On Apr 6, 2022, at 2:57 AM, Morgan Bailey  wrote:
> 
> As
> long as I do not sound like some woke disney donald duck character
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] KPA1500 wattmeter adjustment

[Edward Mccann]

I don’t think the point was the technical discussion.

It was more likely that, as written:

> Did we forget about how to use Ohms Law?   Seems so.  Or perhaps we never 
> knew to start with.

The reasonable interpretation is that the writer implied that some sub-set of 
the ham population “never knew to start with.” 

Seems a little on the adversarial tone to the casual observer, but I actually 
thought it was funny, and was waiting for some pot to call the kettle black.

Best from the West.

Yours in the quest for zero impedance and minimum entropy, 

Ed McCann
AG6CX



Sent from my iPhone

> On Feb 6, 2022, at 12:14 PM, Jim Brown  wrote:
> 
> On 2/6/2022 11:18 AM, Ronnie Hull wrote:
>> One in every crowd… why do we have to throw rocks at each other
> 
> Why must technical discussions be viewed as adversarial? Bob is NOT "throwing 
> rocks," he is sharing what he's learned over his life as a technical 
> professional. As a young ham, I benefited immensely from that kind of 
> sharing, and all my life I've tried to return the favor.
> 
> Bob's assessment of the technical knowledge of many (but certainly not all) 
> hams is not wrong -- far too many memorized test questions to get a license 
> and have rarely cracked a book to actually LEARN how stuff works, instead 
> going with a multitude of urban myths and half-truths.
> 
> Sure, as a teenager 65 years ago I studied/memorized the License Manual, but 
> have spent the rest of my life studying and learning more, and I'm still 
> doing it!
> 
> 73, Jim K9YC
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Elecraft is so awesome all we got is RPN to talk about

[Edward Mccann]

Geoffrey:

Get a copy of Reflections III by Maxwell, W2DU.

He has included  several programs written for RPN calculators in the realm of 
antenna and feedline impedance calculations.

You will be delighted and basking in sunshine.

Ed McCann
AG6CX

Sent from my iPhone

> On Feb 4, 2022, at 8:54 AM, Geoffrey Feldman  wrote:
> 
> I love RPN calculators and even better faithful emulation of them.  Those of
> us who like to compare their favorite smart phone  apps for a 50 year old
> calculator architecture area fellowship of wise and good people.  Love it.
> What is even better is the obvious lack of issues with Elecraft products
> leading to fun tangential discussions.  Do we have any RPN programs of use
> in field tweaking antennas, working out great circle problems  etc. etc. ?
> there are some nice ones out there.  That said, Mighty Mouse or Micky Mouse?
> I'm with Mighty.  Isotope Feeny or Tom Terrific?  I'm with Isotope all the
> way. 
> 
> -73-
> W1GCF
> Geoff
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] [OT] Loss in window line [OPINION] [LONG]

[Edward Mccann]

Al:

Nice report.

Your paragraph 5 reports on Steve G3TXQ’s (SK) findings …”In G3TXQ’s case…” but 
also references independent findings by DJ0IP that you do not further describe.

Can you add what DJ0IP had to add to this topic such as … “in DJ0IP’s case..”

Thanks,

Ed McCann
AG6CX

Sent from my iPhone

> On Jan 14, 2022, at 10:01 AM, Al Lorona  wrote:
> 
> Whenever somebody mentions "window line" here, one of the first objections 
> raised is that "when it gets wet, it has very high loss". 
> 
> The landmark paper cited is by Wes Stewart, N7WS, which can be found here: 
> https://www.sadxa.org/n7ws/Ladder_Line.pdf .
> 
> I'm not trying to discredit that paper in any way, but I'd like to point out 
> two things to keep in mind the next time you hear someone completely and 
> summarily dismiss window line on the grounds that it has "high loss when 
> wet", and citing that paper:
> 
> 1. You should note that Wes took measurements at 50 MHz. Window line is 
> rarely used at that frequency, and anyway the loss has to be extrapolated 
> back down to the HF region. For instance, if wet window line has a loss of 
> 5.2 dB at 50 MHz, the loss at 10 MHz is only 2.3 dB and at 3.5 MHz is 1.4 dB. 
> (See the paper for the equation to extrapolate to another frequency.) 1.4 dB 
> sounds a heck of a lot better than 5.2, and is on par with 100 feet of the 
> best coax you can buy. (We are talking only about matched line loss here, and 
> ignoring additional loss due to SWR.) So that's the first thing.
> 
> 2. Wes's method involved the now legendary use of a "wetting agent" (I assume 
> soap of some kind) added to the water he sprayed onto his 12-foot sample of 
> transmission line to simulate rainy conditions on weathered line. To be fair, 
> Wes himself cautioned that this probably created a worst-case scenario but 
> judging from other references on the web this wetting agent has been blamed 
> for excessively inflating the loss to the point of questioning the relevance 
> of the experiment. DJ0IP and G3TXQ have both claimed that (see 
> http://www.karinya.net/g3txq/wet_ll/ ).  In G3TXQ's case, he was able to 
> replicate Wes's results by using "a few drops of washing-up liquid" but he 
> states, "It is not clear whether the high losses associated with using the 
> wetting agent were due to the more complete wetting of the line or to some 
> electrical properties of the agent. Nor is it clear how well this test 
> represents conditions that will be experienced in the 'real world'."
> 
> What's happening to the line when it gets wet, and why should it's 
> characteristics change at all? To answer this, understand that in balanced 
> line, the energy is carried in the field between the conductors. Window line 
> has mostly polyethylene (PE) between the wires which has a dielectric 
> constant of 2.3, as opposed to air's which is 1.0. Spraying water-- which has 
> a dielectric constant of 80-- onto PE insulation changes the material 
> properties between the conductors and, thus, the capacitance. As capacitance 
> changes, so does  everything else: velocity factor, impedance, and loss. One 
> thing saving us from a catastrophic change in properties is that water tends 
> to bead up and remain as droplets, and droplets don't like to stay connected 
> with other droplets. So if you looked at a path perpendicularly across the 
> surface of the line, you'd see individual, sparse drops rather than a 
> continuous film of water.
> 
> I couldn't find the dielectric constant of soapy water anywhere on the web -- 
> but let's assume that the number is close to that of pure water: 80. If you 
> could somehow give the field a *continuous* path of water from one side to 
> the other on the window line, you'd have significantly altered the dielectric 
> constant of the PE; you'd essentially have added a new "path" in "parallel" 
> with the PE with a dielectric constant some 35 times higher. Although it 
> would be a very thin layer, it nonetheless could have a significant effect, 
> as N7WS and G3TXQ have shown.
> 
> We also have an important data point from Bob, K4TAX, showing that the loss 
> of Bob's window line is pretty much unaffected by rain, although the 
> electrical length does change. I'll address why this might be later on, but 
> the point is that this is credible, measured data. Why are these data so 
> different?
> 
> I did discover that soapy water's pH is above 10 -- possibly as high as 12-- 
> indicating that there are abundant salts present, probably sodium and/or 
> potassium. These dissolved salts strongly ionize the water, greatly 
> increasing its conductivity (and perhaps changing its other electromagnetic 
> characteristics). On the other hand, rain water is essentially pure, much 
> closer to distilled water, with relatively few contaminants capable of being 
> ionized. (See 
> https://www.waterboards.ca.gov/water_issues/programs/swamp/docs/cwt/guidance/3130en.pdf).
>  
> 
> Having said all of this, when 

Re: [Elecraft] Output power being eaten

[Edward Mccann]

Lyn:

Can you comment on the balun you are using between OWL and the KAT500 -
Specs, etc?

Thanks 
 Ed McCann
AG6CX

Sent from my iPhone

> On Dec 28, 2021, at 11:06 AM, Lyn Norstad  wrote:
> 
> Bob -
> 
> I don't have the tower issue, but my OWL comes into the house thru soffit 
> vent spaces (the metal vent has been replaced by a plywood panel), runs over 
> ceiling joists (wood) to the balun and short coax to the KAT500.  I bought a 
> 300 foot piece, and used about half.
> 
> https://www.trueladderline.com/w7fg-design-600-ohm-open-wire-feedline/
> 
> 73
> Lyn, W0LEN
> 
> 
> -Original Message-
> From: Bob McGraw [mailto:rmcg...@benlomand.net] 
> Sent: Tuesday, December 28, 2021 12:27 PM
> To: l...@lnainc.com; elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Output power being eaten
> 
> Yes, I agree that true open wire line does not have that issue. However, 
> in as much as I have the feed-line from the antenna, standing off of the 
> tower some 18", entering through an eve vent, then through the attic 
> supported under the wood roof rafters, and dropping down through the 
> ceiling to my operating position, using true open wire line would be a 
> challenge.  In my installation, I add 10 twists per 10 ft so as to 
> minimize any adjacent item causing unbalance plus minimize any wind 
> loading.  With true open wire line, this would be a challenge.
> 
> I've used this system for more than 25 years with a great deal of 
> success and very little to zero issues.  It is just ones understanding 
> the need for a slight adjustment of the ATU values to compensate for 
> weather changes.  No different than frequency changes.  The KPA500 or 
> the KAT in the radio handles any needed changes 100%.  The currents in 
> each side of the line are balanced to 5% or better and there is no 
> measurable common mode current.
> 
> I wish more hams understood this and they would likely have better 
> antenna systems, as opposed to some of the haywire crap I've see at some 
> QTH locations.
> 
> Thanks
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 12/28/2021 11:46 AM, Lyn Norstad wrote:
>> Bob -
>> 
>> Should you ever feel the need to replace your feedline, open wire line will 
>> solve that problem.
>> 
>> 73
>> Lyn, W0LEN
>> 
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net 
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw
>> Sent: Monday, December 27, 2021 7:36 PM
>> To: elecraft@mailman.qth.net
>> Subject: [Elecraft] Output power being eaten
>> 
>> I doubt that ice on the antenna would have any effect in terms of
>> increased loss.   However, I would expect the resonant frequency to
>> change and thus the need to adjust the tuner.   If it is and ATU /
>> automated tuner, then perhaps a bit too low power may cause the SWR
>> bridge to read incorrectly.
>> 
>> I use a KAT500 and my TUNE power is 20 watts.  This assures the ATU and
>> SWR circuits have adequate signal to perform the desired function.   As
>> to the SPE 1.3K amp, as fussy as they are, I'm surprised it didn't trip
>> off line.
>> 
>> My experience with antenna's changing due to moisture is with my
>> balanced center fed wire which uses window line for the feed.  It
>> accumulates moisture, frost, rain, snow, and ice.  The change I do see
>> is due to the velocity change of the balanced feed.  My measurements of
>> a couple of years back indicated the length of the line changed
>> electrically thus a velocity factor change.  Any loss, wet or dry, under
>> matched conditions was not measurable over a length of 100 ft on 20M.
>> Therefore, I would expect the mis-matched loss to be about as the book
>> say.  Again, either wet or dry.
>> 
>> 73
>> 
>> Bob, K4TAX
>> 
>>> On 12/27/2021 4:10 PM, elecraft-requ...@mailman.qth.net wrote:
>>> Message: 21
>>> Date: Mon, 27 Dec 2021 14:10:25 -0800
>>> From: Fred Jensen
>>> To: Elecraft Reflector
>>> Subject: Re: [Elecraft] Output power being eaten
>>> Message-ID:<8c012d97-f62d-b342-4ec3-20db2e8f5...@gmail.com>
>>> Content-Type: text/plain; charset=utf-8; format=flowed
>>> 
>>> I doubt that pogonip or even solid ice on your antenna would have major
>>> effects [well, except for weight].? Ice forming from water directly from
>>> the sky is a pretty good insulator.? We had a very large Log-Periodic on
>>> the roof of the hangar at my first USAF assignment in the remote
>>> northern interior of KL7.? Lots of ice fog creating rime ice on the
>>> elements in the dead of winter, much of which was -35 C or below.? In
>>> the so-called spring, solid ice would form on them, and there was
>>> essentially no perceptible change in the antenna performance.? If your
>>> ATU wasn't getting enough power to tune, it was probably "eating your
>>> power" rather than the ice on the antenna.
>>> 
>>> At home, I have an HOA "WOOF" antenna [Wire On Organic Fence] at about 2
>>> m AGL.? We've been having a series of snowstorms, the top of the fence,
>>> including the wire, was encased in snow 

Re: [Elecraft] ?ELECRAFT NVIS field day?

[Edward Mccann]


A couple of historical references on the current topic:

https://www.mpoweruk.com/papers/Radcom_NVIS.pdf


https://www.mpoweruk.com/papers/Arnhem_NVIS.pdf

Interesting articles. Lore notwithstanding!

Merry Christmas to all.

AG6CX 

Sent from my iPhone

> On Dec 23, 2021, at 8:23 PM, Bill Parsons  wrote:
> Dean Straw's December 2005 NVIS article with color graphics appears to be a
> public access document and archived at the ARRL website at:
> http://www.arrl.org/files/file/QST%20Binaries/Straw1205.pdf
> 
> The version retrieved in the standard ARRL members only archives accessed
> at the Technology tab Periodical and Archive Search engine has black and
> white graphics.
> 
> 73, Bill  AF6AE
> 
> On Sun, Dec 19, 2021 at 8:54 AM Ed Cole  wrote:
> 
>> Thanks to Bill Parsons-AF6AE for the tip on the QST December-2005
>> article.  Pulled it out and scanned it over (will read more thoroughly
>> later) but interestingly showed how 80/40m coverage varied by time of
>> day (which was demonstrated real-time in the 1980's on the Iditarod
>> trail working into Anchorage).
>> 
>> At home I only use those bands infrequently and mostly to talk out a few
>> hundred miles in Alaska.  Somewhere I read that a 40-foot high
>> inverted-V would work well.  I have a 50-foot tower mounted to end of my
>> house with Hygain TH3mk4 tribander at tower top so hung my 80/40m fan
>> dipole at the 40-foot level with end tapering down to 20-foot on one end
>> and 15-foot on the other.  Its hung on a line NW to SE but that seems to
>> work out 400 miles just fine.
>> 
>> I am going to re-hang that antenna next summer with 80m wire at right
>> angle to 40m wire as the fan-style 40m tuning was affected by proximity
>> of the 80m wire.  As I have written previously, I will also run this as
>> a top-hat loaded vertical on 160m/630m by shorting the 40-foot high
>> feedline.
>> 
>> I check into a weekly net on Saturdays (11am local time) on 3920 KHz.
>> NC is about 70 miles south in Homer, AK (KL7PM) and consistently comes
>> in at 30-40 dB over S9.  He does run about 400w.  I get at least S9
>> reports from him with my 100w and I hear other stations out as far north
>> as Fairbanks (400 miles) pretty well.  Band noise runs S7 (K3 PRE Off).
>> 
>> 3920 is designated emergency channel for AK and often activated after an
>> earthquake for tsunami watch.
>> 
>> Ed-KL7UW
>> K3/10+KXPA100 on HF/6m
>> under construction is 3w/1200w W6PQL MRF1K50H amp
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to bparsons.i...@gmail.com
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Problem Tuning K3

[Edward Mccann]

I wonder if this food fight might reach its denouement on another channel?

It seems to have been sparked by an OCFD discussion not relevant to anything 
Elecraft, and to have evolved into personal preferences and grievances. 

Maybe we should take on End Fed Zepps next?  Or take the whole thing off-line?

If it continues, we are indeed eminently qualified in the use of our delete 
buttons.

Best from the West,

Ed McCann
AG6CX

Sent from my iPhone

> On Nov 4, 2021, at 12:39 PM, Bill Lederer  wrote:
> 
> Not Dick Tracy here, nor am I K9YC.
> 
> I had very good results running mobile with 100 watts and a hustler on the
> roof of my Suburban. I also have fun with my kx2 and a random wire 15 feet
> high out the window to a tree.
> 
> Your notes about the success of various real-world examples leaves out what
> the comparison would be with a true dipole. For a true test, you would need
> to do a head-to-head comparison of the two antennas. K3LR used to do this
> at Dayton.  Proof is not how many OCF antennas fly above roofs, but how do
> they compare to a similarly situated dipole.
> 
> A true test of equipment and antennas is how well they do in a contest.
> With these OCF antennas, can you work 100 countries in a weekend on
> multiple bands? Can you get to 300 countries in DXCC? Much less likely than
> dipoles, properly built verticals or beams.
> 
> Can you have fun with OCF or other compromise antennas? Yes. But other
> antennas are likely to do better.
> 
> w8lvn
> 
> 
> 
> 
>> On Thu, Nov 4, 2021 at 12:00 PM JR  wrote:
>> 
>> Jim Brown says --
>> 
>>I suspect you don't understand the physics of
>>the problem. OCF antennas are a yesterday's approach
>>to multiband antennas. They are a recipe for RX noise
>>and RF in the shack.
>> 
>> ___
>> 
>> NOT SO, DICK TRACY !
>> 
>> While YOUR OCF dipole may have problems if poorly deployed and
>> implemented.  It is a PLAIN FACT based on thousands of real world examples,
>> OCF Dipoles DO WORK WELL.  Mine works very well with NO CMC or other
>> problems.  A few years ago, I gave some minor assistance to a notorious
>> German operator, DJ0IP, as he collected a wealth of empirical data on CMC
>> and OCF dipoles, carefully testing multiple examples before designing a
>> commercial product that has been well received by the QRP crowd, receiving
>> positive reviews in the RSGB and ARRL magazines.  He received even more
>> assistance from W8JI and G4TXQ and others,focusing their attention on how
>> to avoid common mode current (CMC),  discussing where to offset the feed
>> point, and how to construct a proper combination balun and choke.  My OCF
>> Dipole is split 25% /75% split and Rick selected a very different feed
>> point, and all is good.
>> 
>> CMC is NOT a necessary evil as Mr. Brown suggests. It CAN be curtailed
>> with "proper care and feeding" (pun intended) and the proof flies over my
>> shack, and over hundreds of other shacks, including DJ0IP's station, around
>> the globe.
>> 
>> Pedantic dogma be hanged !!  I base my claim on 1) real world results,
>> 2) TONS of empirical research by others,  and 3) input from my local
>> Elmer/guru who designed RF gear for NASA and the AIR FORCE and commercial
>> interests.  Mr. B's theory is out of step with the real world.(smiling
>> as he typed that, Pardner...)  :-)  -K8JHR-
>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to w8lv...@gmail.com
>> 
> 
> 
> -- 
> --w8lvn--
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] HELP! XFINITY SHUT OFF INTERNET DUE TO HAM ANTENNAS

[Edward Mccann]

Or, you sign up with T-Mobile for $50 monthly all in; gear supplied; and once 
in tell Infinity Foxtrot Oscar.

Ed McCann
AG6CX

Sent from my iPhone

> On Oct 20, 2021, at 12:07 PM, David Gilbert  wrote:
> 
> 
> First off, there is no way that your antennas alone can passively trash 
> Xfinity's internet network.  Whoever told you that is an idiot.
> 
> Secondly, you could offer to do some testing with Xfinity in attendance to 
> verify whether or not your transmissions were causing a problem.  I have a 
> small local wireless ISP that uses my tower to serve about 240 subscribers in 
> the valley below my QTH, and about a year ago he started to see what looked 
> to him like random problems with the routers on the tower.  I suggested that 
> we do some checks, and sure enough transmitting at high power on 10m caused 
> his routers (one in particular) to burp.  I hadn't operated much on 10m 
> previously because of the solar cycle.
> 
> He could stand there next to the tower and monitor the network with his 
> cellphone.  If a small one-man ISP can do that, Xfinity can.  He checked his 
> shielded CAT lines and all seemed to be solidly connected, so I suggested he 
> was getting common mode interference on the shields and that he could put 
> some clam shell ferrite cores (I suggested #31) on the lines near each box 
> and antenna.  He bought a bunch of them and that solved the problem.
> 
> In my case, I have it written into our contract that my ham radio has 
> priority over his gear, and I forced him to get my tower officially permitted 
> for his commercial use of it, so the burden was on him anyway.
> 
> 73,
> Dave   AB7E
> 
> 
> 
>> On 10/20/2021 11:21 AM, eric norris via Elecraft wrote:
>> Dear Gang:
>> Xfinity, our internet provider, showed up at 7:30am this morning, to explain 
>> to the XYL that we were being cut off for good because my amateur radio 
>> activities had caused wide area outages.  Oddly, these wide area outages did 
>> not include my own house.  They told her the antennas themselves--absent any 
>> power--were the problem
>> The last time I was threatened, I installed chokes and opto-isolaters on our 
>> shielded ethernet lines, and after being told they use 14Mhz as their 
>> carrier frequency, I have stayed off 20m, only using 100w unless I'm in a 
>> rare contest.  I asked to speak to a technical guy--they gave me a number 
>> which I called, but he never called back.
>> Any Ideas?  Does anyone have a contact at the ARRL, or know a communications 
>> lawyer?  Comcast/Xfinity will be back out here at 2pm Pacific time--I'd 
>> appreciate any help.
>> My XYL depends on an internet connection to work.  Being off the air is 
>> unimaginable.
>> Frantic,
>> 
>> 73, Eric WD6DBM
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] Ground Wire & Coax

[Edward Mccann]

Probably the combined weight of electrons used to whisk it around the ether. 

An electron is a tiny particle with a mass of 9.108 × 10−28 g and a negative 
charge.

AG6CX

Sent from my iPhone

> On Aug 25, 2021, at 9:38 AM, Dave  wrote:
> 
> Humor:
> 
> The real question here is why does the Kindle Edition weigh in at .7 pounds!
> 
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
> 
>> On 8/25/21 9:04 AM, Bill Frantz wrote:
>> I don't think it's out yet. Here's what's on the ARRL Store site:
>> Also available:
>> Grounding and Bonding for the Radio Amateur. Kindle Edition.
>> Product Details
>> Softcover: 176 pages
>> Publisher: The American Radio Relay League, Inc.
>> Copyright: First Edition, Fourth Printing (2017-2019)
>> Language: English
>> ISBN: 978-1-62595-065-9
>> Product Dimensions: 7 1/4 x 9 inches
>> Shipping Weight: .70 pounds
>>> On 8/23/21 at 1:35 AM, j...@audiosystemsgroup.com (Jim Brown) wrote:
>>> I don't know if the second edition is out -- we finished over the winter.
>> 73 Bill AE6JV
>> ---
>> Bill Frantz| Concurrency is hard. 12   | Periwinkle
>> (408)348-7900  | out 10 programmers get it | 150 Rivermead Rd #235
>> www.pwpconsult.com | wrong.  - Jeff Frantz | Peterborough, NH 03458
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to d...@nk7z.net
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to edwmcc...@gmail.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] Mods required of Elecraft Gear for use on MARS frequencies.

[Edward Mccann]

Are modifications required for KPA 500 amp (or its big brother)and KAT500 ant 
tuner, or P3 to accommodate use on MARS frequencies?

I understand Elecraft will make mods for the K3 or possibly release firmware 
for MARS upon submission of proper documentation.

Thanks 
Ed McCann
AG6CX

Sent from my iPhone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] Maxwell

[Edward McCann]

I’m told Maxwell is still on the list for delivery of his Elecraft K4, and 
patiently awaiting delivery after compulsory social isolation.

Ed McCann
AG6CX
MIT Course VI

Sent from my iPhone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] Elecraft BL-2 Switchable Balun

[Edward McCann]

Looking for BL-2 balun that might be surplus to your needs.

Please contact directly off the reflector ag6...@gmail.com.

Thank you,

Ed McCann
AG6CX

Sent from my iPhone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] For Elecraft Outdoors Folks! Buddipole for Sale.

[Edward McCann]

In time for Field Day, or your next hike up the mountain, a Buddipole System!

For Sale in San Francisco Bay Area

Buddipole Deluxe Long System, including tripod, 18ft mast, two standard arms, 
rotating arm kit,
three telescopic (13-66”) whips, fifty feet coax with choke, three coil clips 
and padded travel bag.

Plus optional extras, including two additional standard arms (for total of 
four) three additional telescopic (13-66”) whips (for total of six), three 
additional coil clips (for total of six), mast guying kit, wire assembly, 6 
Meter Yagi kit, six knurled base whip screws, and two long telescopic (21-114”) 
whips.

With original sales receipt from Pacificon purchase, all in $768, including tax.

Note guarantee/warranty covers failures due to manufacturing defects by 
original and subsequent owners, effectively transferable for these kind of 
defects.

Buddipole appears to be in mint condition. Assembled once, pieces fit like a 
watch. Much of the kit still in original wrapping. 

Thought I would use it outdoors as it was intended, but my creaking and 
mobility issues preclude use as it was intended. Hence it must go 

Asking $600; but will consider reasonable offers.

Happy to meet halfway around Northern California from my Marin QTH for personal 
delivery. Prefer not to leave such a great unit to the vagaries of FedEx or UPS 
or USPS.

Please contact me off the forum.
Pictures of the device available upon request to AG6CX1 at gee mail.

And Go Elecraft!

Thank you,

Ed McCann
AG6CX
K3, P3, KAT500, KPA 500

Sent from my iPhone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Elecraft Digest, Vol 168, Issue 23/ Grounds on Power Supply

[Edward Mccann via Elecraft]

Eric:

Concur this horse has been beaten senseless, lacking a conclusion.

But to set us straight, how did Elecraft  handle this notion in its SS 30 DV? 
Do I need to scrape paint or disconnect wires to be safe?

Thanks,

Ed McCann
AG6CX

Sent from my iPhone

> On Apr 19, 2018, at 11:49 AM, elecraft-requ...@mailman.qth.net wrote:
> 
> Send Elecraft mailing list submissions to
>elecraft@mailman.qth.net
> 
> To subscribe or unsubscribe via the World Wide Web, visit
>http://mailman.qth.net/mailman/listinfo/elecraft
> or, via email, send a message with subject or body 'help' to
>elecraft-requ...@mailman.qth.net
> 
> You can reach the person managing the list at
>elecraft-ow...@mailman.qth.net
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
> 
> 
> Today's Topics:
> 
>   1. Re: KPA1500 Caution (Edward R Cole)
>   2. Re: Negative rail grounding (Eric Swartz - WA6HHQ, Elecraft)
>   3. Re: KPA1500 Caution (John Marvin)
>   4. Packing Peanuts Are Of the Devil! (Jim Brown)
>   5. WTB: Loaded KX3 (Petr, OK1RP/M0SIS)
>   6. Re: Packing Peanuts Are Of the Devil! (Bill)
>   7. UPS Practice? was:Re:  KPA1500 Caution (N4ZR)
>   8. Re: UPS Practice? was:Re:  KPA1500 Caution (tnny...@yahoo.com)
>   9. Re: UPS Practice? was:Re: KPA1500 Caution (Dave Sublette)
>  10. Longer K-Pod cable? (Bob Novas)
>  11. Re: UPS Practice? was:Re: KPA1500 Caution (Joe Subich, W4TV)
>  12. Re: UPS Practice? was:Re: KPA1500 Caution (Don Wilhelm)
>  13. Re: UPS Practice? was:Re:  KPA1500 Caution (Mark E. Musick)
>  14. Re: UPS Practice? was:Re: KPA1500 Caution (Jim N7US)
>  15. Re: UPS Practice? was:Re: KPA1500 Caution (Don Wilhelm)
>  16. Re: UPS Practice? was:Re: KPA1500 Caution (N4ZR)
>  17. Re: UPS Practice? was:Re: KPA1500 Caution (SAMUEL L ROWE)
>  18. Re: Longer K-Pod cable? (Don Wilhelm)
>  19. Re: Packing Peanuts Are Of the Devil! (David Gilbert)
>  20. Re: Packing Peanuts Are Of the Devil! (Rick WA6NHC)
>  21. Re: Packing Peanuts Are Of the Devil! (rich hurd WC3T)
>  22.  UPS Practice? was:Re: KPA1500 Caution (j...@kk9a.com)
>  23. Re: Longer K-Pod cable? (Bill Frantz)
>  24. Re: Longer K-Pod cable? (Chuck Milam, N9KY)
>  25. Re: [KX3] New Product: SPX3 External Speaker (Robert Morris)
> 
> 
> --
> 
> Message: 1
> Date: Wed, 18 Apr 2018 20:36:54 -0800
> From: Edward R Cole 
> To: Elecraft Reflector 
> Subject: Re: [Elecraft] KPA1500 Caution
> Message-ID: <201804190436.w3j4aual006...@mail47c28.carrierzone.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
> 
> In today's USPS, both UPS and FedEx also carry the "mail" so one 
> cannot be sure who the "actual carrier" is.
> 
> I have no home delivery of US Mail so my USPS packages are held 
> secure inside the PO.  Both UPS and FedEx delivery are drop n scoot 
> (lucky if you are home and hear the knock).  And there your lovely 
> $5K purchase sits out in the wx available for thieves.  I could opt 
> for one of the box clusters which would result in driving 25-miles to 
> the PO to pickup boxes too large.  RFD is out of a neighbor city.  My 
> local PO is 4.5 miles. When I was still employed the PO was 0.25 mi 
> from work which made it very convenient.  Its a small town PO and 
> they know me by name.
> 
> Another reason to chose Priority Mail is that UPS/FedEx cost 2x to 3x 
> as much for delivery to Alaska (and 2-day delivery is 3-day+ for 
> all  three services). No UPS/FedEx on weekends.  PO is open on Saturday.
> 
> 73, Ed - KL7UW
>   http://www.kl7uw.com
> Dubus-NA Business mail:
>   dubus...@gmail.com 
> 
> 
> 
> --
> 
> Message: 2
> Date: Wed, 18 Apr 2018 22:09:53 -0700
> From: "Eric Swartz - WA6HHQ, Elecraft" 
> To: k2...@arrl.net
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Negative rail grounding
> Message-ID: <3b8eda91-dad0-428c-b883-643e5ac14...@elecraft.com>
> Content-Type: text/plain;charset=us-ascii
> 
> Gentlemen, This thread and related threads is getting well past our max OT 
> posting limit. Please take it off list for now and report back on your final 
> conclusions if you come to agreement.
> 
> 73,
> Eric
> Moderator most of the time.. 
> elecraft.com
> _..._
> 
> 
> 
>>> On Apr 18, 2018, at 4:09 PM, Phil Kane  wrote:
>>> 
>>> On 4/18/2018 11:28 AM, Jim Brown wrote:
>>> 
>>> NEC does not apply to low voltage DC systems.
>> 
>> Oh?  Check NEC Section 7 , specifically Article 720, which applies
>> specifically to Low Voltage systems.  (We do a LOT of 48V distribution
>> system designs.)
>> 
>> Philip M. Kane  Esq / P.E.  (K2ASP since 1952)
> 
> 
> --
> 
> Message: 3
> Date: Wed, 18 Apr 2018 23:37:31 -0600
> From: John Marvin 
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KPA1500 Caution
> Message-ID: 

Re: [Elecraft] Issue 12 re Astron Power Supply

[Edward McCann]

Thanks for even more clarity, Chuck.
Ed McCann
AG6CX

Sent from my iPhone

> On Apr 15, 2018, at 7:38 PM, hawley, charles j jr <c-haw...@illinois.edu> 
> wrote:
> 
> This thread prompted me to check out my Astron vs35m. It had a small black 
> wire from -V connected to the bottom of the chassis. Perhaps it could be 
> called a case or cabinet...more importantly, it’s what the green wire from 
> the line cord is connected to. I disconnected the black wire. When it was 
> connected, much of the current that would have passed thru the negative power 
> wire from the power supply to the rig was shunted thru the green power cord 
> wire, the ground buss bar, and other ground connections.
> 
> Chuck Jack 
> KE9UW
> 
> Sent from my iPhone, cjack 
> 
>> On Apr 15, 2018, at 8:58 PM, Edward McCann <ag6...@gmail.com> wrote:
>> 
>> Yes.
>> 
>> And I read he made no distinction between “case” and “chassis”, like the 
>> other respondents.
>> 
>> Or did you catch something I missed?
>> 
>> Much obliged for your prompt response.
>> 
>> 73,
>> 
>> AG6CX
>> 
>> Sent from my iPhone
>> 
>>> On Apr 15, 2018, at 6:27 PM, <j...@kk9a.com> <j...@kk9a.com> wrote:
>>> 
>>> Did you read W4TV's post on this subject?
>>> http://mailman.qth.net/pipermail/elecraft/2018-April/255072.html
>>> 
>>> Edward McCann ag6cx1 wrote: 
>>> 
>>> 
>>> 
>>> "But there is also a small black wire that bonds the V- terminal to the
>>> case. Should the paint around that screw also be removed???Does that
>>> negative rail need to be bonded to the chassis??"
>>> 
>>> I'm trying to figure out the difference between the "case" and the
>>> "chassis".
>>> 
>>> Can you help?
>>> 
>>> Jim Brown's answer is also ambiguous to me.
>>> 
>>> He says, yes scrape and attach the V- rail to deal with your black wire if
>>> you want to bond V-, but then says don't because the negative rail should
>>> not be bonded to the chassis.
>>> 
>>> I quote below:
>>> 
>>> 
>>>> "But there is also a small black wire that bonds the V- terminal to the
>>> case. Should the paint around that screw also be removed?
>>> 
>>> Yes, IF you want to bond V-.
>>> 
>>>> ?Does that negative rail need to be bonded to the chassis?
>>> 
>>> No, and in general, it should NOT be bonded."
>>> 
>>> I also offer I might be out of touch with the subtleties of the concept, and
>>> may be interpreting the comments incorrectly. 
>>> 
>>> In any event, some clarification would be appreciated 
>>> 
>>> What did you finally do? And did it work?
>>> 
>>> Thanks,
>>> 
>>> Ed McCann
>>> AG6CX
>>> 
>>> Sent from my iPhone
>>> 
>>>> On Apr 10, 2018, at 11:34 PM, elecraft-request at mailman.qth.net wrote:
>>>> 
>>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to c-haw...@illinois.edu
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Issue 12 re Astron Power Supply

[Edward McCann]

Yes.

And I read he made no distinction between “case” and “chassis”, like the other 
respondents.

Or did you catch something I missed?

Much obliged for your prompt response.

73,

AG6CX

Sent from my iPhone

> On Apr 15, 2018, at 6:27 PM, <j...@kk9a.com> <j...@kk9a.com> wrote:
> 
> Did you read W4TV's post on this subject?
> http://mailman.qth.net/pipermail/elecraft/2018-April/255072.html
> 
> Edward McCann ag6cx1 wrote: 
> 
> 
> 
> "But there is also a small black wire that bonds the V- terminal to the
> case. Should the paint around that screw also be removed???Does that
> negative rail need to be bonded to the chassis??"
> 
> I'm trying to figure out the difference between the "case" and the
> "chassis".
> 
> Can you help?
> 
> Jim Brown's answer is also ambiguous to me.
> 
> He says, yes scrape and attach the V- rail to deal with your black wire if
> you want to bond V-, but then says don't because the negative rail should
> not be bonded to the chassis.
> 
> I quote below:
> 
> 
>> "But there is also a small black wire that bonds the V- terminal to the
> case. Should the paint around that screw also be removed?
> 
> Yes, IF you want to bond V-.
> 
>> ?Does that negative rail need to be bonded to the chassis?
> 
> No, and in general, it should NOT be bonded."
> 
> I also offer I might be out of touch with the subtleties of the concept, and
> may be interpreting the comments incorrectly. 
> 
> In any event, some clarification would be appreciated 
> 
> What did you finally do? And did it work?
> 
> Thanks,
> 
> Ed McCann
> AG6CX
> 
> Sent from my iPhone
> 
>> On Apr 10, 2018, at 11:34 PM, elecraft-request at mailman.qth.net wrote:
>> 
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Elecraft Digest, Vol 168, Issue 12 re Astron Power Supply

[Edward McCann]

Re:

“But there is also a small black wire that bonds the V- terminal to the case. 
Should the paint around that screw also be removed???Does that negative rail 
need to be bonded to the chassis??”

I’m trying to figure out the difference between the “case” and the “chassis”.

Can you help?

Jim Brown’s answer is also ambiguous to me.

He says, yes scrape and attach the V- rail to deal with your black wire if you 
want to bond V-, but then says don’t because the negative rail should not be 
bonded to the chassis.

I quote below:


> “But there is also a small black wire that bonds the V- terminal to the case. 
> Should the paint around that screw also be removed?

Yes, IF you want to bond V-.

> ?Does that negative rail need to be bonded to the chassis?

No, and in general, it should NOT be bonded.”

I also offer I might be out of touch with the subtleties of the concept, and 
may be interpreting the comments incorrectly. 

In any event, some clarification would be appreciated 

What did you finally do? And did it work?

Thanks,

Ed McCann
AG6CX

Sent from my iPhone

> On Apr 10, 2018, at 11:34 PM, elecraft-requ...@mailman.qth.net wrote:
> 
> But there is also a small black wire that bonds the V- terminal to the case. 
> Should the paint around that screw also be removed???Does that negative rail 
> need to be bonded to the chassis??
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] Laptop Serial Port Card for K3

[edward mccann]

From Edward McCann AG6CX:

I am about to set up K3 station and would prefer to provide serial port from 
newer portable PC (Sony Vaio VGN-FW550F with Windows 7 64 bit)to K3 rather than 
use USB to Serial adapter. Not being cheap here, but rather trying to provide 
native serial port interface to keep it simple.

Prices of new PCMCIA cards seem to run from $20 to $100 on Amazon and 
elsewhere. Has anyone had experience with this matter and can recommend a 
specific card that has worked for you without glitches?

Thanks.
AG6CX

***
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html