Re: [Elecraft] Ground Wire & Coax
On 8/23/2021 9:45 PM, James Bennett via Elecraft wrote: Folks - thanks for the input! Jim - Not sure what version I’ve got - it doesn’t say, so perhaps it is first edition of the book. However it does have a few paragraphs on perimeter grounding, on pages 4.22 - 4.24. And yes, I had planned on a series of ground rods driven in and connected to the #4 wire along its path to the Ufer connection point. I don't know if the second edition is out -- we finished over the winter. You mentioned “at least 1.5 - 2x their length" of the ground rod spacing. What would be the minimum spacing between rods? They are, after all, not the easiest things to “push” into the ground. That IS the minimum spacing. Most rods sold are 8 ft or so, so I'd choose 16 ft spacing. Luckily we’ve got no Telco line coming into the house, nor CATV - it is all fiber here. I would hate to lose POTS -- we often lose power for long periods, and when that goes, so does Comcast. And we have NO cell coverage, thanks to the "Tin Hat Brigade." I'm hoping I have enough of a view of the sky in the clearing of our 200+ ft redwoods for StarLink to provide a viable alternative. 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 arch...@mail-archive.com
Re: [Elecraft] Ground Wire & Coax
Is the second edition published yet? ARRL shows First Edition, Fourth Printing. http://www.arrl.org/shop/Grounding-and-Bonding-for-the-Radio-Amateur/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Aug 23, 2021, at 8:27 PM, Jim Brown wrote: > > On 8/23/2021 6:42 PM, James Bennett via Elecraft wrote: >> Per N.E.C. specs, I need to tie the ground system at the shack entrance to >> the house utility ground - probably 150’ or so from the coax entrance panel >> to that Ufer spot. > > There's a bit more to it than that. In essence, more grounds are better and > you can have as many as you want, but they must ALL be bonded together. That > includes power, telco, CATV, shack, etc. > > My electrician said that a #4 solid copper wire running from the coax > entrance panel to the Ufer point would suffice for keeping the grounds > together. Looking at the ARRL book on grounding and bonding, it appears that > what I’m going to do is to install a “perimeter ground.” > > Not quite -- it would be a perimeter ground if that #4 (yes, big enough) were > connecting driven rods spaced at least 1.5 - 2x their length around the > perimeter. > > Do you have the first or second edition of the book? Ward and I worked > through some of the issues involved with situations like yours for the second > edition. > > 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 wun...@wunderwood.org __ 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
Folks - thanks for the input! Jim - Not sure what version I’ve got - it doesn’t say, so perhaps it is first edition of the book. However it does have a few paragraphs on perimeter grounding, on pages 4.22 - 4.24. And yes, I had planned on a series of ground rods driven in and connected to the #4 wire along its path to the Ufer connection point. You mentioned “at least 1.5 - 2x their length" of the ground rod spacing. What would be the minimum spacing between rods? They are, after all, not the easiest things to “push” into the ground. Luckily we’ve got no Telco line coming into the house, nor CATV - it is all fiber here. Jim / K7TXA > On Aug 23, 2021, at 9:27 PM, Jim Brown wrote: > > On 8/23/2021 6:42 PM, James Bennett via Elecraft wrote: >> Per N.E.C. specs, I need to tie the ground system at the shack entrance to >> the house utility ground - probably 150’ or so from the coax entrance panel >> to that Ufer spot. > > There's a bit more to it than that. In essence, more grounds are better and > you can have as many as you want, but they must ALL be bonded together. That > includes power, telco, CATV, shack, etc. > > My electrician said that a #4 solid copper wire running from the coax > entrance panel to the Ufer point would suffice for keeping the grounds > together. Looking at the ARRL book on grounding and bonding, it appears that > what I’m going to do is to install a “perimeter ground.” > > Not quite -- it would be a perimeter ground if that #4 (yes, big enough) were > connecting driven rods spaced at least 1.5 - 2x their length around the > perimeter. > > Do you have the first or second edition of the book? Ward and I worked > through some of the issues involved with situations like yours for the second > edition. > > 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 w6...@me.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] For Sale: K3S + KPA500 + KAT500 + P3 + TXSensor + MH2
Price? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 8/23/21 5:37 PM, VA7KL wrote: Fully operational. Located in Vancouver Canada. __ 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 arch...@mail-archive.com
Re: [Elecraft] Ground Wire & Coax
On 8/23/2021 6:42 PM, James Bennett via Elecraft wrote: Per N.E.C. specs, I need to tie the ground system at the shack entrance to the house utility ground - probably 150’ or so from the coax entrance panel to that Ufer spot. There's a bit more to it than that. In essence, more grounds are better and you can have as many as you want, but they must ALL be bonded together. That includes power, telco, CATV, shack, etc. My electrician said that a #4 solid copper wire running from the coax entrance panel to the Ufer point would suffice for keeping the grounds together. Looking at the ARRL book on grounding and bonding, it appears that what I’m going to do is to install a “perimeter ground.” Not quite -- it would be a perimeter ground if that #4 (yes, big enough) were connecting driven rods spaced at least 1.5 - 2x their length around the perimeter. Do you have the first or second edition of the book? Ward and I worked through some of the issues involved with situations like yours for the second edition. 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 arch...@mail-archive.com
Re: [Elecraft] Ground Wire & Coax
On 8/23/2021 6:42 PM, James Bennett via Elecraft wrote: Anyway, the path from that coax entrance panel to the antenna is about 100’. The first 50’ of it is the same path that the #4 copper wire would take. Since the ground here in SW Idaho doesn’t freeze up, I’m looking at digging a 4-6” deep trench for these wires. Is there any reason why I cannot place the coax and the #4 copper wire in the same trench? Electrical reasons? RF reasons? For safety reasons it is advisable to separate the perimeter ground wire from any "utility" cables, including antenna cables. I would dig the trench to 12" or more, bury the ground wire, fill the trench halfway, bury the antenna cable, put a layer of some bright-colored heavy plastic over the cable (to identify it if necessary to dig it up again) and fill the rest of the trench. Put marker stakes around the perimeter. If you don't want to dig it by hand, rent a Ditch Witch. Do not forget to call Locating Services (8-1-1) to mark buried utility pipes and lines on your property before you dig - they are funded by the utilities. Stuff I learned from my colleague Tom Croda (SK) who was the national expert on communication site power and grounding. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Ground Wire & Coax
Got a question for those folks who are knowledgeable in grounding equipment. I’m installing a Zerofive flagpole antenna in my backyard. There will be several 8’ ground rods at the antenna site. On one side of the house is my shack; on the other side is the home’s utility ground - a Ufer system. I’m also installing a KF7P entrance panel on the exterior wall of the shack. It’ll have several lightening arrestors and a very close-by 8’ ground rod. Per N.E.C. specs, I need to tie the ground system at the shack entrance to the house utility ground - probably 150’ or so from the coax entrance panel to that Ufer spot. My electrician said that a #4 solid copper wire running from the coax entrance panel to the Ufer point would suffice for keeping the grounds together. Looking at the ARRL book on grounding and bonding, it appears that what I’m going to do is to install a “perimeter ground.” Not cheap, but the right thing to do. Anyway, the path from that coax entrance panel to the antenna is about 100’. The first 50’ of it is the same path that the #4 copper wire would take. Since the ground here in SW Idaho doesn’t freeze up, I’m looking at digging a 4-6” deep trench for these wires. Is there any reason why I cannot place the coax and the #4 copper wire in the same trench? Electrical reasons? RF reasons? Jim / K7TXA __ 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 Sale: K3S + KPA500 + KAT500 + P3 + TXSensor + MH2
Fully operational. Located in Vancouver Canada. __ 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 Sale: KX3 + KXPA100 + PX3 + MH3
Fully operational. Located in Vancouver Canada. __ 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] Any update on KIO3BUPKT_KIO3B Upgrade Kits for the K3
Just read July Newsletter and it is great to see that K4’s deliveries are increasing. I was wondering if there is any update on when those of us who place orders for items like the KIO3BUPKT_KIO3B Upgrade Kit for the K3, might expect delivery. Thanks, Bill - W0BBI __ 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] KIO2 and KUSB for K2?
Thanks to the several who replied, and especially to Don for the exact information that I needed. 73, Paul - N8XMS 100% QRP CW > On Aug 23, 2021, at 3:25 PM, Don Wilhelm wrote: > > Paul, > > You must construct the special cable that is specified in the KIO2 manual - > you can make it a short one if you want. > That cable has a DE9 connector on the PC end which you can plug into a serial > port or into a USB to serial adapter - The KUSB sold by Elecraft is a good > choice -- if you choose another USB to serial adapter, make certain it uses > the FTDI chipset. > > 73, > Don W3FPR > > On 8/23/2021 1:22 PM, Paul Huff wrote: >> I am thinking about adding the KIO2 RS-232 serial interface to my K2 but I >> don’t know very much about computer hardware. Would the KUSB serial cable >> that is also sold by Elecraft then be needed to connect the KIO2 to the USB >> port on my Mac computer? Or is there something else that would be needed? >> >> > __ 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] KIO2 and KUSB for K2?
Paul, You must construct the special cable that is specified in the KIO2 manual - you can make it a short one if you want. That cable has a DE9 connector on the PC end which you can plug into a serial port or into a USB to serial adapter - The KUSB sold by Elecraft is a good choice -- if you choose another USB to serial adapter, make certain it uses the FTDI chipset. 73, Don W3FPR On 8/23/2021 1:22 PM, Paul Huff wrote: I am thinking about adding the KIO2 RS-232 serial interface to my K2 but I don’t know very much about computer hardware. Would the KUSB serial cable that is also sold by Elecraft then be needed to connect the KIO2 to the USB port on my Mac computer? Or is there something else that would be needed? __ 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] 40 METER NET / 80 METER NET 8-22-21
Thanks to all that assisted with relays. 40 METERS 7.280 1900Z WM6P STEVE GA K3S NETCONTROL W9EJB ED IN K3 K9NU CARL OH FTDX101D K5PD PETER TX K3 W3SA JOHN NC TS890 WY3T TIM FL K3S W8UAN TIM MI TS-890 NC0JW JIM CO KX3 WN3T RICK VA IC7610 K8IGU BRIAN OHIO TS2000 KD9QDP RICK IL TS450 N3RFO LES MD IC7300 KC3HW JIM PA IC7300 W2JHH JERRY GA IC7300 N2TNQ LES NJ K3 N2DTS BRETT NJ IC705 80 METER NET 3.775 0100Z WM6P STEVE GA K3S K8NU CARL OH FTDX101D WY3T TIM FL K3S N8SBE DAVE MI K3S __ 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] KIO2 and KUSB for K2?
On 2021-08-23 10:22, Paul Huff wrote: I am thinking about adding the KIO2 RS-232 serial interface to my K2 but I don’t know very much about computer hardware. Would the KUSB serial cable that is also sold by Elecraft then be needed to connect the KIO2 to the USB port on my Mac computer? Or is there something else that would be needed? *** Not sure about the KIO2, but I did peruse the data on the serial port included on the KPA100, which is probably the same. In the case of the KPA100, you MUST use a custom cable - either supplied by Elecraft, or made up with their schematic. This is because Elecraft used "spare" pins on the serial connector for things that have nothing to do with serial communications. For serial comm, you connect ONLY pins 2,3 and 5 on the 9-pin serial connector. pin 2 is TxD ( data from the K2 to the computer ), pin 3 is RxD ( data from the computer to the K2 ), and pin 5 is the common/ground. Again, this is specific to the KPA100; I don't know if it applies also to the KIO2, but I suspect that it does. - Jerry KF6VB __ 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] KIO2 and KUSB for K2?
I am thinking about adding the KIO2 RS-232 serial interface to my K2 but I don’t know very much about computer hardware. Would the KUSB serial cable that is also sold by Elecraft then be needed to connect the KIO2 to the USB port on my Mac computer? Or is there something else that would be needed? Thanks and 73, Paul - N8XMS 100% QRP CW __ 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] K3S audio quality issue [SOLVED]
I second that. 73, Mike AB3VN On Monday, August 23, 2021, 10:14:29 AM EDT, Henk de Vries wrote: No, one would not expect a change when that button is pressed.However as soon as the VFO is moved it would be logical that the frequency is in line with the display.So the first "VFO move" should remove the offset.73 HenkPA0C Oorspronkelijk bericht Van: jerry Datum: 23-08-2021 16:01 (GMT+01:00) Aan: elecraft@mailman.qth.net Onderwerp: Re: [Elecraft] K3S audio quality issue [SOLVED] On 2021-08-22 19:45, Michael Kholodov via Elecraft wrote:> If you have the tuning step 10Hz, tune to, say, 7.200.56 and then> switch to coarse tuning, the display will show 7.200.5. But this 60Hz> offset will still be present. Then no matter how you tune at the> coarse setting, you will mistune. To fix that you should always reset> the fine tuning offsets to zero before switching to coarse.> It is apparently a bug in the software because the normal expectationOTOH, do you want the frequency to *change* when all you did was to hit the "rate" button? The K2 behaves the same way. This is one of those UI things where there really is no "right" answer. - Jerry KF6VB__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to h...@kpnplanet.nl __ 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 michk...@yahoo.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] K3S audio quality issue [SOLVED]
No, one would not expect a change when that button is pressed.However as soon as the VFO is moved it would be logical that the frequency is in line with the display.So the first "VFO move" should remove the offset.73 HenkPA0C Oorspronkelijk bericht Van: jerry Datum: 23-08-2021 16:01 (GMT+01:00) Aan: elecraft@mailman.qth.net Onderwerp: Re: [Elecraft] K3S audio quality issue [SOLVED] On 2021-08-22 19:45, Michael Kholodov via Elecraft wrote:> If you have the tuning step 10Hz, tune to, say, 7.200.56 and then> switch to coarse tuning, the display will show 7.200.5. But this 60Hz> offset will still be present. Then no matter how you tune at the> coarse setting, you will mistune. To fix that you should always reset> the fine tuning offsets to zero before switching to coarse.> It is apparently a bug in the software because the normal expectationOTOH, do you want the frequency to *change* when all you did was to hit the "rate" button? The K2 behaves the same way. This is one of those UI things where there really is no "right" answer. - Jerry KF6VB__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to h...@kpnplanet.nl __ 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] K3S audio quality issue [SOLVED]
On 2021-08-22 19:45, Michael Kholodov via Elecraft wrote: If you have the tuning step 10Hz, tune to, say, 7.200.56 and then switch to coarse tuning, the display will show 7.200.5. But this 60Hz offset will still be present. Then no matter how you tune at the coarse setting, you will mistune. To fix that you should always reset the fine tuning offsets to zero before switching to coarse. It is apparently a bug in the software because the normal expectation OTOH, do you want the frequency to *change* when all you did was to hit the "rate" button? The K2 behaves the same way. This is one of those UI things where there really is no "right" answer. - Jerry KF6VB __ 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
