Re: [Elecraft] 40 meter SSB net 7.280, July 17, 1900Z
Thanks for running the net, Steve. I was still in Michigan, but just barely, at the Sterling State Park, near Monroe, MI, on the shore of Lake Erie. Quoting Steve Hall <99sun...@gmail.com>: WM6P STEVE GA K4D NET CONTROL K8NU CARL OH FTDX101D N8SBE DAVE IN KX2 W9EJB ED IN K4D KD4PBJ CHRIS TN KX3 15WATTS W4DML DOUG TN K3 WY3T TIM FL K3S W4WFB ROY NC K4D KK5LD DAN TX K3 W5COG OK K3 N9JJD DON SC IC7300 KE4CXJ BOB GA TS440 KD4GIX ROB VA FTDX10 W9PCS PAUL WI K4D KD4UMU DAN KY FLEX3000 WA9DDK JEF GA IC7600 __ 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 n8...@arrl.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
[Elecraft] OT (Covid)
In response to several private inquiries, and to render unnecessary any more: I’m off-line due to Covid. (No, I was not at the same party as Joe Biden :) I’m going on my fourth day. It could’ve been worse. Streaming a lot of B-grade HBO to stay sane. I hope to be back in the saddle by Monday, answering emails and detonating fresh non sequiturs. Wayne N6KR elecraft.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] FS: KX3 and PX3
Elecraft KX3 All-Mode Transceiver 160 - 6 Meters, 10 Watts PEP 160-15, 8 Watts PEP 12-6 Meters. PX3 Matching Full-color Panadapter Display. KX3 S/N 5826, Firmware version 02.90. Includes KXFL3 Dual-bandwidth Roofing Filter MH3 Microphone KXUSB Cable, DC power cable with Power Poles, 3.5 mm audio cable Pro-Audio after-market heatsink Nifty mini-manual, no original printed manual Nifty Tilt Stand Does not have internal tuner. If added later will need to replace threaded mounting spacer accidentally damaged adding filter board. Factory assembled unit won at a hamfest and purchased by N8IW, selling for him. Reason, too many radios. Excellent condition with only a few hours usage. PX3 Panadapter S/n 1000, Firmware version 01.48 Includes PX3-KX3 connecting cables, DC power cable with power poles Nifty tilt stand No printed manual Excellent condition Not sure if factory assembled, purchased used at hamfest Will consider selling separately Total Price $1550, shipped CONUS, PayPal OK. Contact off list. Pictures available. Phil N3ZP __ 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] How do I know if my K2 has BFOMDKT installed?
Correct Andrew. Even if it is a 10K RP you'll still want to add R19. I just got done fully upgrading a field test K2 here and had 100K stuck in my head. But it is the same whether 100K or 10K RP's. 73, Dave, W8FGU On 7/22/2022 10:52:06 AM, "Andrew Moore" wrote: Hi Dave - My s/n 892 currently has RP2 = 10k, not 100k. Does the 2.7k still need to be added across pins 7 and 8? From the PLL Ref Upgrade kit docs (E850138), it sounds like it might need to be added regardless of 10k/100k, as the first step below doesn't differentiate, while the next step does: [_] If your K2 serial number is lower than 3000, make sure you have installed the BFO modification (BFOMDKT). One of the items supplied in this kit is a 2.7-k resistor. This resistor, designated R19, must be soldered across pins 7 and 8 of resistor network WP2 (in the PLL area). [_] If you have an older K2 (early revision A for Field Test), you may have a 100k resistor network installed at RP2, which is in the VCO area. If so, you'll need to solder two 10k to 12k resistors across RP2, which can be difficult... Thanks, -Andrew NV1B .. On Fri, Jul 22, 2022 at 9:30 AM Dave Van Wallaghen wrote: Hi Andrew, Yes, place that 2.7KΩ resistor across RP2 pins 7 & 8. This resistor is on the output of U6A to drive the varactor diodes in the PLL Osciillator circuit. It was changed to 2.7K in Rev B. In Rev A it was 100K and part of RP2, so you are just placing a 2.7k resistor in parallel with the 100K on RP2 P& and P8. I believe the change was to help add stability to the PLL Oscillator circuit. 73, Dave, W8FGU On 7/21/2022 11:04:58 PM, "Andrew Moore" wrote: >I just installed the temperature compensated PLL reference upgrade kit on >my K2 #892. > >From everything I can see, this rig (which I bought used) has been brought >up to date in almost every way. > >One step in the assembly instructions says that for S/N < 3000, make sure >I've installed the BFOMDKT upgrade, and that the kit includes a 2.7k >resistor R19 that's soldered across pins 7 and 8 of RP2 (according to >document "Upgrading the Elecraft K2 to Revision B"). > >My RP2 (10K) has no resistor across any pins. However, I do have L33 >upgraded to the prewound 41 uH inductor, which I think was part of the >BFOMDKT. > >Should I be adding 2.7k across pins 7 and 8? Is there any reason this would >not have been done as part of the BFOMDKIT upgrade? > >Thanks, >-Andrew NV1B >.. >__ >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...@w8fgu.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] How do I know if my K2 has BFOMDKT installed?
Hi Dave - My s/n 892 currently has RP2 = 10k, not 100k. Does the 2.7k still need to be added across pins 7 and 8? From the PLL Ref Upgrade kit docs (E850138), it sounds like it might need to be added regardless of 10k/100k, as the first step below doesn't differentiate, while the next step does: [_] If your K2 serial number is lower than 3000, make sure you have installed the BFO modification (BFOMDKT). One of the items supplied in this kit is a 2.7-k resistor. This resistor, designated R19, must be soldered across pins 7 and 8 of resistor network WP2 (in the PLL area). [_] If you have an older K2 (early revision A for Field Test), you may have a 100k resistor network installed at RP2, which is in the VCO area. If so, you'll need to solder two 10k to 12k resistors across RP2, which can be difficult... Thanks, -Andrew NV1B .. On Fri, Jul 22, 2022 at 9:30 AM Dave Van Wallaghen wrote: > Hi Andrew, > > Yes, place that 2.7KΩ resistor across RP2 pins 7 & 8. This resistor is > on the output of U6A to drive the varactor diodes in the PLL Osciillator > circuit. It was changed to 2.7K in Rev B. In Rev A it was 100K and part > of RP2, so you are just placing a 2.7k resistor in parallel with the > 100K on RP2 P& and P8. I believe the change was to help add stability to > the PLL Oscillator circuit. > > 73, > Dave, W8FGU > > > On 7/21/2022 11:04:58 PM, "Andrew Moore" wrote: > > >I just installed the temperature compensated PLL reference upgrade kit on > >my K2 #892. > > > >From everything I can see, this rig (which I bought used) has been brought > >up to date in almost every way. > > > >One step in the assembly instructions says that for S/N < 3000, make sure > >I've installed the BFOMDKT upgrade, and that the kit includes a 2.7k > >resistor R19 that's soldered across pins 7 and 8 of RP2 (according to > >document "Upgrading the Elecraft K2 to Revision B"). > > > >My RP2 (10K) has no resistor across any pins. However, I do have L33 > >upgraded to the prewound 41 uH inductor, which I think was part of the > >BFOMDKT. > > > >Should I be adding 2.7k across pins 7 and 8? Is there any reason this > would > >not have been done as part of the BFOMDKIT upgrade? > > > >Thanks, > >-Andrew NV1B > >.. > >__ > >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...@w8fgu.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] For Sale: KXPA100 Amplifier
Lightly used Elecraft KXPA100, 100 Watt Amplifier. 3.5 to 7 Watts in for 100 Watts out. Includes DC cable, coax jumper cable, USB cable and key line cable. No printed manual. Serial # 1353. Does not the have internal tuner. Selling for a ham friend N8IW who purchased it used but has only used it a few times. Excellent condition, no dings, marks or scratches. Don't know if it was factory or kit built. Sold as-is. Pictures available. Price $1000 shipped CONUS. PayPal OK. Contact off list phi...@comcast.net Phil N3ZP __ 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] How do I know if my K2 has BFOMDKT installed?
Hi Andrew, Yes, place that 2.7KΩ resistor across RP2 pins 7 & 8. This resistor is on the output of U6A to drive the varactor diodes in the PLL Osciillator circuit. It was changed to 2.7K in Rev B. In Rev A it was 100K and part of RP2, so you are just placing a 2.7k resistor in parallel with the 100K on RP2 P& and P8. I believe the change was to help add stability to the PLL Oscillator circuit. 73, Dave, W8FGU On 7/21/2022 11:04:58 PM, "Andrew Moore" wrote: I just installed the temperature compensated PLL reference upgrade kit on my K2 #892. From everything I can see, this rig (which I bought used) has been brought up to date in almost every way. One step in the assembly instructions says that for S/N < 3000, make sure I've installed the BFOMDKT upgrade, and that the kit includes a 2.7k resistor R19 that's soldered across pins 7 and 8 of RP2 (according to document "Upgrading the Elecraft K2 to Revision B"). My RP2 (10K) has no resistor across any pins. However, I do have L33 upgraded to the prewound 41 uH inductor, which I think was part of the BFOMDKT. Should I be adding 2.7k across pins 7 and 8? Is there any reason this would not have been done as part of the BFOMDKIT upgrade? Thanks, -Andrew NV1B .. __ 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...@w8fgu.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] WTB: QRP cover for K2
Hi all - I'm converting my K2/100 back to a K2/10 and need the original cover. I've got one coming but it might be a long wait. If anyone has one available let me know. Thanks & 73, -Andrew NV1B .. __ 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
