Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A
I do not have ACOM2000 but I use the same arrangement with Expert 1-KFA and K3. Logging program polls the radio and the amp only listens for K3 response to learn the operating freq. When you terminate logger there is no polling anymore. Therefore the system does not work as expected. This is normal. 73, Igor UA9CDC - Original Message - From: Bill Turner dez...@outlook.com To: acom-l...@yahoogroups.com Cc: Elecraft elecraft@mailman.qth.net Sent: Saturday, September 13, 2014 5:53 AM Subject: Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A My cable is store bought, and it is the kind in figure 7.2, i.e. without the TXD wire. I ohmed it to be sure. Actually, it is a cable with a separate Y adaptor, but the effective wiring is the same as figure 7.2. And here's the kicker: This morning when I fired up everything to do some more troubleshooting, everything worked just as it should. It seems I have an intermittent connection somewhere, most likely in a cable, connector or the Y adaptor. It's been working fine all day. I think I will build a new cable and Y adaptor to eliminate that as a possible cause and see if the problem stays gone. I did notice one thing that seems odd. When I do not have a logging program running and I do a manual band change on the K3, the ACOM does not follow the change. I thought it should. Does your's work that way? As soon as I start a logging program, everything returns to normal. Don't you just love these intermittent gremlins? :-) 73, Bill W6WRT ORIGINAL MESSAGE (may be snipped) On Fri, 12 Sep 2014 18:47:48 -0400, Nick wrote: Hi Bill Did you build your cable according to schematic on page 34 (figure 7-6) from Acom 2000 manual? This wiring diagram is for K3 CAT with ACOM 2000A only. I believe this diagram assumes there is no computer connected in. It only describes the case in which there is a connection between the K3 and Acom 2000A. If you look at the page 32 (Fig 7-2) which describes the generic wiring between RS232 PC port and Transceiver with ACOM connected via Y cable, you will notice that they only use the RXD wiring and the ground. TXD line has been omitted. RCU DB15 Pin 1 --- RS-232 Pin 2 RCU DB15 Pin 5 --- RS-232 Pin 5 (Ground) I initially built the CAT cable using all 3 wires (RXD, TXD + Ground) and as soon as ACOM would come online, K3 would not work properly with my LP-PAN and LP Bridge. I don't use P3. I snipped the TXD line after reading your email and now everything appears to be working fine. K3+ACOM2000A+PC are tracking frequency smoothly like usual. If I now just type the frequency in Win-Test or change the band on my K3, ACOM nicely parks itself on a whichever band segment it detects by sniffing the comm traffic between K3 and the PC. 73, Nick ve3ey On Fri, Sep 12, 2014 at 6:18 AM, Bill Turner dez...@outlook.com wrote: ORIGINAL MESSAGE (may be snipped) On Fri, 12 Sep 2014 08:46:23 -, you wrote: Bill, I too use the Acom 2000A and do not know why you bother with so many control cables.The Acom switches bands in a dit or syllable and tunes in three seconds automatically.I must be missing something but why do you need to go to so much trouble with control cables for the amplifier. REPLY: The reason I bother is I do not like transmitting even a single dit into an amplifier on the wrong band at full power. Yes, the ACOM is a tough amplifier but I am pretty conservative about such things. When I do send a dit to change bands, I reduce the drive power way down. If I can get the automatic band change to work, I won't have to reduce power or send a dit. It will already be pre-tuned. 73, Bill W6WRT __ 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 nick.ve...@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 ua9...@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] KX3-2M, high speed CW sounds strange
KX3-2M: high speed CW (e.g. 35 wpm) with external keying sounds strange in sidetone on 2m. I have no RX to monitor RF. With the internal keyer it works perfect. On HF bands CW sounds perfect! MCU 2.19 DSP 1.30 73, paul hb9axl __ 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] [acom-list] Re: Elecraft K3 and ACOM 2000A
Bill, When K3 AUTOINF menu entry is set to NOR, then the frequency is reported only when polled. Only the loger polls as the Y cable does not allow the ACOM to do it. That is why K3 does not report the frequency when the logger is not running. The issue can be solved in two ways: 1. Set AUTOINF to AUTO 1. Then K3 will broadcast its frequency without polling. Hope that your loger will not mind it. 2. If the logging program does not like no polling reports, then you may add a SPDT switch to the Y cable. Than you may manually switchover the TXD wire either to the PC when the logger is running, or to the ACOM when no PC application polls. 73, Val LZ1VB My cable is store bought, and it is the kind in figure 7.2, i.e. without the TXD wire. I ohmed it to be sure. Actually, it is a cable with a separate Y adaptor, but the effective wiring is the same as figure 7.2. And here's the kicker: This morning when I fired up everything to do some more troubleshooting, everything worked just as it should. It seems I have an intermittent connection somewhere, most likely in a cable, connector or the Y adaptor. It's been working fine all day. I think I will build a new cable and Y adaptor to eliminate that as a possible cause and see if the problem stays gone. I did notice one thing that seems odd. When I do not have a logging program running and I do a manual band change on the K3, the ACOM does not follow the change. I thought it should. Does your's work that way? As soon as I start a logging program, everything returns to normal. Don't you just love these intermittent gremlins? :-) 73, Bill W6WRT ORIGINAL MESSAGE (may be snipped) On Fri, 12 Sep 2014 18:47:48 -0400, Nick wrote: Hi Bill Did you build your cable according to schematic on page 34 (figure 7-6) from Acom 2000 manual? This wiring diagram is for K3 CAT with ACOM 2000A only. I believe this diagram assumes there is no computer connected in. It only describes the case in which there is a connection between the K3 and Acom 2000A. If you look at the page 32 (Fig 7-2) which describes the generic wiring between RS232 PC port and Transceiver with ACOM connected via Y cable, you will notice that they only use the RXD wiring and the ground. TXD line has been omitted. RCU DB15 Pin 1 --- RS-232 Pin 2 RCU DB15 Pin 5 --- RS-232 Pin 5 (Ground) I initially built the CAT cable using all 3 wires (RXD, TXD + Ground) and as soon as ACOM would come online, K3 would not work properly with my LP-PAN and LP Bridge. I don't use P3. I snipped the TXD line after reading your email and now everything appears to be working fine. K3+ACOM2000A+PC are tracking frequency smoothly like usual. If I now just type the frequency in Win-Test or change the band on my K3, ACOM nicely parks itself on a whichever band segment it detects by sniffing the comm traffic between K3 and the PC. 73, Nick ve3ey On Fri, Sep 12, 2014 at 6:18 AM, Bill Turner dez...@outlook.com wrote: ORIGINAL MESSAGE (may be snipped) On Fri, 12 Sep 2014 08:46:23 -, you wrote: Bill, I too use the Acom 2000A and do not know why you bother with so many control cables.The Acom switches bands in a dit or syllable and tunes in three seconds automatically.I must be missing something but why do you need to go to so much trouble with control cables for the amplifier. REPLY: The reason I bother is I do not like transmitting even a single dit into an amplifier on the wrong band at full power. Yes, the ACOM is a tough amplifier but I am pretty conservative about such things. When I do send a dit to change bands, I reduce the drive power way down. If I can get the automatic band change to work, I won't have to reduce power or send a dit. It will already be pre-tuned. 73, Bill W6WRT __ 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] [KX3] Key Clicks
I'm not sure what I've done. Not sure if I just woke up and noticed it or if I've done something that's caused it. With my KX3 terminated into a dummy load, split and dual watch active, VFO B 1 - 5.3 kHz up or down from VFO A, filter set to 450 Hz and centered, I am getting key clicks on VFO B. NB and NR are off. I did a little reading through past posts and even reverted back to FW 2.18 and then 2.12. I also reloaded a configuration from 8/31/2014 and still hear the key clicks. I do *not* hear key clicks if both VFO A and VFO B are on the same frequency with split and dual watch active. The key clicks occur on every band from 80 - 10 m. I also noticed something else trying to work W1AW/5 on RTTY - terrible ringing. He was working split up 1 so I don't know if that was the issue or not. I have not tried to recreate this using a backup config or different firmware. My question(s) is/are: Does anyone else notice this or is this an issue with my rig? If it's me, what on *Earth* have I done to cause this? On a side note, despite the end of the world CME, the NA-SOTA weekend is happening this weekend. Get those great Elecraft rigs on the air and help those guys and gals out on the summits. :) 73/72, Joel - W4JBB KX3 #1479 __ 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] SSB net announcement
Can't do it this time, Phil. It's my son's birthday Sunday. My apologies. Have a great SOTA activation! 73 de, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 K3# 281, P3 #688, KPA500 #1468 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Shepard Sent: Friday, September 12, 2014 11:59 PM To: elecraft@mailman.qth.net Subject: [Elecraft] SSB net announcement Help! I forgot that I will be on a SOTA summit this Sunday. Can anyone take the NCS duty this week? Thanks 73, Phil NS7P __ 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 km4ik@gmail.com --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.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] [KX3] Key Clicks
John, Thanks for the tip. I have a hard time filtering the F.O.D. on the KX3 Yahoo group. I'll go back and look there too. I have set the DLY and finally got it where I can tolerate the key clicks, but the DLY is set to about 0.20 - basically, it only clicks at the end of transmit. I *did* notice that even with my MON turned to 0 I still hear key clicks in my headphones (I have been wearing headphones the entire time I've been testing). I hear them as the rig stops transmitting. Joel - W4JBB On 9/13/14, 6:12 AM, John Oppenheimer wrote: Good morning Joel, Using 2.19. Same VFO B click with DLY = 0.00 and a little B side only tone ring at the end of the transmission. Increasing DLY to 0.06 eliminates the clicks. My hunch is the same DSP pipe delay I mentioned in yesterday's Yahoo KX3 list QSK email. Not sure what the VFO B offset dependent frequency ring at the end of the transmission is. John KN5L On 09/13/2014 05:42 AM, Joel Black wrote: With my KX3 terminated into a dummy load, split and dual watch active, VFO B 1 - 5.3 kHz up or down from VFO A, filter set to 450 Hz and centered, I am getting key clicks on VFO B. NB and NR are off. Does anyone else notice this or is this an issue with my rig? If it's me, what on *Earth* have I done to cause this? __ 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] [acom-list] Re: Elecraft K3 and ACOM 2000A
ORIGINAL MESSAGE (may be snipped) On Sat, 13 Sep 2014 12:36:40 +0600, UA9CDC wrote: I do not have ACOM2000 but I use the same arrangement with Expert 1-KFA and K3. Logging program polls the radio and the amp only listens for K3 response to learn the operating freq. When you terminate logger there is no polling anymore. Therefore the system does not work as expected. This is normal. REPLY: So the K3 does not send data unless polled? OK, now things make more sense. This explains why, if you're not using the Y connector to your computer, your data cable must have the TXD wire so the ACOM can poll the K3. Is my assumption correct? The ACOM does poll the K3 in that case? Things are finally coming clear. I wish this had been explained in the ACOM manual. Many thanks to all who replied on this issue. 73, Bill W6WRT __ 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] [acom-list] Re: Elecraft K3 and ACOM 2000A
I don't have an ACOM, SteppIR-controller, or Expert 1-KFA. I'd suggest that you don't want two TxD connections on an RS-232 Y connector. You need one from the PC to the K3. I don't think you want TxD from K3 to ACOM. RS-232 is not a protocol that permits two senders. It's ok to sniff the Rx line, multiple receivers. I doubt that the ACOM (or the Expert) polls the K3. I bet they are passive listeners. You need frequency messages to be presented to the ACOM on QSY. The normal technique for this is to turn on K3 Auto Info (a K3 menu configuration selection). Then as you QSY (or actually, your QSY stops), the K3 sends a message with the new frequency. If you are running a logging program, it probably polls the K3 for frequency often, and the ACOM can sniff those responses, and then the K3 Auto Info isn't as necessary. Some loggers don't mind if you leave Auto Info on. It's just extra information on change and the logger can either ignore or exploit those unsolicited messages. However it's possible that some loggers might not deal well with unexpected messages that can occur in auto info mode. Then K3 Auto Info has to be turned off (or the logging program needs to learn to deal with unexpected auto info messages). I think you're close, but I wouldn't connect two senders... 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Turner Sent: Saturday, September 13, 2014 7:03 AM To: acom-l...@yahoogroups.com Cc: Elecraft Subject: Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A ORIGINAL MESSAGE (may be snipped) On Sat, 13 Sep 2014 12:36:40 +0600, UA9CDC wrote: I do not have ACOM2000 but I use the same arrangement with Expert 1-KFA and K3. Logging program polls the radio and the amp only listens for K3 response to learn the operating freq. When you terminate logger there is no polling anymore. Therefore the system does not work as expected. This is normal. REPLY: So the K3 does not send data unless polled? OK, now things make more sense. This explains why, if you're not using the Y connector to your computer, your data cable must have the TXD wire so the ACOM can poll the K3. Is my assumption correct? The ACOM does poll the K3 in that case? Things are finally coming clear. I wish this had been explained in the ACOM manual. Many thanks to all who replied on this issue. 73, Bill W6WRT __ 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...@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] For Sale Telepost LP-100
This unit is in excellent shape I built it myself but sent it down to Larry at Telepost for calibration and final check. Comes with the Standard coupler the LPC1, 50 mW to 3KW PEP/CW, 1.8 to 54 MHz. The many other features of this professional piece of equipment are to many to list, go to http://www.telepostinc.com for a complete run down of what the LP-100 can do. Price 350.00 Mike WeirVE3WDM __ 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] [acom-list] Re: Elecraft K3 and ACOM 2000A
On Sat,9/13/2014 7:33 AM, Dick Dievendorff wrote: RS-232 is not a protocol that permits two senders. It's ok to sniff the Rx line, multiple receivers. I doubt that the ACOM (or the Expert) polls the K3. I bet they are passive listeners. You need frequency messages to be presented to the ACOM on QSY. The normal technique for this is to turn on K3 Auto Info (a K3 menu configuration selection). Then as you QSY (or actually, your QSY stops), the K3 sends a message with the new frequency. If you are running a logging program, it probably polls the K3 for frequency often, and the ACOM can sniff those responses, and then the K3 Auto Info isn't as necessary. Good advice. I have no experience with these amps, but I do have a SteppIR controller that functions as Dick describes. I used it with Commander, the rig control program that is part of the DXLog suite, and with N1MM. I found that I had to use the computer to set the K3's frequency. I no longer use that connection, because I switch the SteppIR between two radios for SO2R. 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
[Elecraft] Win4K3Suite: Now allows changing of Terminal Mode Threshold and text decode parameters.
Win4K3Suite - version 1.662 is now released. This version has a number of enhancements which follow from user feedback. New: - It is now possible to adjust the Threshold and parameters such as CW speed in the K3 Terminal Window. This unique capability is not available in the K3 Utility or in any other software package. This allows one to change the point at which decoding begins, helping eliminate false decoding of CW, PSK and FSK signals. This also allows proper remote use of the K3 text decoding with something like TeamViewer. Please note that there is currently no way to do this with the KX3. -The KX3 and LPPAN panadapter has had a number of enhancements: 1) Split screen is now available allowing you to adjust the relative size of the spectrum vs waterfall 2) Waterfall speed control has now been added 3) The 8kHz IF shift of the KX3 is now supported. Other enhancements include: Mouse wheel support for VFOA and VFOB allowing the change of individual digits in the frequency display. Rework of the Tune button such that if a tuner is in BYPASS then pressing Tune will send a carrier. Support for CW mode of WinWarbler. Win4K3Suite is the most comprehensive control program for the K3, KX3, KPA500 and KAT500. It interoperates with most third party logging and contest programs. A free 30 day trial is available at va2fsq.com. Purchase entitles you to free updates for as long as the K3 and KX3 exist. You can see the program in action at https://www.youtube.com/results?search_query=win4k3suite 73's Tom va2fsq __ 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] [KX3] PX3 Anderson Powerpoles
The white stripped wire is positive - An easy ohmmeter check. 73 K0PP On Sep 13, 2014 10:22 AM, j...@pandzik.com [KX3] k...@yahoogroups.com wrote: Before I fry my new PX3, can someone tell me which wire is which on the power cable? One wire is solid black and the other is black with white dashes. Neither the manual nor the website decodes this.Thanks in advance. Jim Pandzik KE5PK __._,_.___ -- Posted by: j...@pandzik.com -- Reply via web post https://groups.yahoo.com/neo/groups/KX3/conversations/messages/47549;_ylc=X3oDMTJycXVkNm5nBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM0NzU0OQRzZWMDZnRyBHNsawNycGx5BHN0aW1lAzE0MTA2MjUzNjE-?act=replymessageNum=47549 • Reply to sender j...@pandzik.com?subject=Re%3A%20PX3%20%26%20Anderson%20Powerpoles • Reply to group k...@yahoogroups.com?subject=Re%3A%20PX3%20%26%20Anderson%20Powerpoles • Start a New Topic https://groups.yahoo.com/neo/groups/KX3/conversations/newtopic;_ylc=X3oDMTJmcWxscWRhBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNudHBjBHN0aW1lAzE0MTA2MjUzNjE- • Messages in this topic https://groups.yahoo.com/neo/groups/KX3/conversations/topics/47549;_ylc=X3oDMTM3ZGlwNnU3BF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM0NzU0OQRzZWMDZnRyBHNsawN2dHBjBHN0aW1lAzE0MTA2MjUzNjEEdHBjSWQDNDc1NDk- (1) Visit Your Group https://groups.yahoo.com/neo/groups/KX3/info;_ylc=X3oDMTJmbmQ2cWRuBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2Z2hwBHN0aW1lAzE0MTA2MjUzNjE- - New Members https://groups.yahoo.com/neo/groups/KX3/members/all;_ylc=X3oDMTJnamNyaWIzBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2bWJycwRzdGltZQMxNDEwNjI1MzYx 20 [image: Yahoo! Groups] https://groups.yahoo.com/neo;_ylc=X3oDMTJlcGtkbjVzBF9TAzk3NDc2NTkwBGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNnZnAEc3RpbWUDMTQxMDYyNTM2MQ-- • Privacy https://info.yahoo.com/privacy/us/yahoo/groups/details.html • Unsubscribe kx3-unsubscr...@yahoogroups.com?subject=Unsubscribe • Terms of Use https://info.yahoo.com/legal/us/yahoo/utos/terms/ . __,_._,___ __ 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] [KX3] PX3 Anderson Powerpoles
Definitely use the ohm meter check. If I remember correctly there were some pwr cables that had the wires reversed. I never trust the colors too much at risk. -- View this message in context: http://elecraft.365791.n2.nabble.com/Re-KX3-PX3-Anderson-Powerpoles-tp7593034p7593035.html Sent from the Elecraft mailing list archive at Nabble.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] [acom-list] Re: Elecraft K3 and ACOM 2000A
Hi Dick and Val Thanks for sharing this valuable info with the group. Similar to Bill, W6WRT after I fixed my CAT cable to exclude TXD line my entire setup started working but later on I realized it wasn't working reliably. On some occasions, amp would not detect the frequency change until after I started spinning the VFO knob. This was while I had the Win-Test logging program running and polling my K3. Autonfo on my K3 is set to nor. On some bands the amp refused to follow the frequency. For example, I would switch the radio to 20 meters but the amp for some reason thought it was still on 15. If I turn the CAT off on the Acom's RCU unit and transmit some RF, the amp would correctly switch to 20 and tune up. Without changing anything else and while the K3 and Win-Test were still on 20m, if I turn the on the CAT on the RCU unit, the amp would jump back on 15m for some reason. The whole thing started working reliably after I took LP Bridge out of the picture. In Win-Test if I define the radio on the real COM port the PC is connected to the K3 and change the pooling from Auto to 300msec the amp works well. I changed the band numerous times and Acom followed without a hitch. In my case LP-Bridge seems to be confusing the amp but I can't tell why. LP-Bridge does read everything correctly from the K3 and Win-Test works perfectly along with it. 73, Nick ve3ey On Sat, Sep 13, 2014 at 10:33 AM, Dick Dievendorff d...@elecraft.com wrote: I don't have an ACOM, SteppIR-controller, or Expert 1-KFA. I'd suggest that you don't want two TxD connections on an RS-232 Y connector. You need one from the PC to the K3. I don't think you want TxD from K3 to ACOM. RS-232 is not a protocol that permits two senders. It's ok to sniff the Rx line, multiple receivers. I doubt that the ACOM (or the Expert) polls the K3. I bet they are passive listeners. You need frequency messages to be presented to the ACOM on QSY. The normal technique for this is to turn on K3 Auto Info (a K3 menu configuration selection). Then as you QSY (or actually, your QSY stops), the K3 sends a message with the new frequency. If you are running a logging program, it probably polls the K3 for frequency often, and the ACOM can sniff those responses, and then the K3 Auto Info isn't as necessary. Some loggers don't mind if you leave Auto Info on. It's just extra information on change and the logger can either ignore or exploit those unsolicited messages. However it's possible that some loggers might not deal well with unexpected messages that can occur in auto info mode. Then K3 Auto Info has to be turned off (or the logging program needs to learn to deal with unexpected auto info messages). I think you're close, but I wouldn't connect two senders... 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Turner Sent: Saturday, September 13, 2014 7:03 AM To: acom-l...@yahoogroups.com Cc: Elecraft Subject: Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A ORIGINAL MESSAGE (may be snipped) On Sat, 13 Sep 2014 12:36:40 +0600, UA9CDC wrote: I do not have ACOM2000 but I use the same arrangement with Expert 1-KFA and K3. Logging program polls the radio and the amp only listens for K3 response to learn the operating freq. When you terminate logger there is no polling anymore. Therefore the system does not work as expected. This is normal. REPLY: So the K3 does not send data unless polled? OK, now things make more sense. This explains why, if you're not using the Y connector to your computer, your data cable must have the TXD wire so the ACOM can poll the K3. Is my assumption correct? The ACOM does poll the K3 in that case? Things are finally coming clear. I wish this had been explained in the ACOM manual. Many thanks to all who replied on this issue. 73, Bill W6WRT __ 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...@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 nick.ve...@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
Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A
In my case LP-Bridge seems to be confusing the amp but I can't tell why. LP-Bridge does read everything correctly from the K3 and Win-Test works perfectly along with it. LP-Bridge acts as a *proxy* - polling from Win-Test and other programs is answered by LP-Bridge and *not passed on to the rig*. Thus, any hardware that relies on the answers to polling from the rig does not see any response. Because LP-Pan blocks the majority of polls to the rig, the 2000, SteppIR and other similar hardware never gets a chance to recover when they miss an update as they would with a logger that polls for frequency and mode two or three times per second. 73, ... Joe, W4TV On 2014-09-13 12:59 PM, Nick - VE3EY wrote: Hi Dick and Val Thanks for sharing this valuable info with the group. Similar to Bill, W6WRT after I fixed my CAT cable to exclude TXD line my entire setup started working but later on I realized it wasn't working reliably. On some occasions, amp would not detect the frequency change until after I started spinning the VFO knob. This was while I had the Win-Test logging program running and polling my K3. Autonfo on my K3 is set to nor. On some bands the amp refused to follow the frequency. For example, I would switch the radio to 20 meters but the amp for some reason thought it was still on 15. If I turn the CAT off on the Acom's RCU unit and transmit some RF, the amp would correctly switch to 20 and tune up. Without changing anything else and while the K3 and Win-Test were still on 20m, if I turn the on the CAT on the RCU unit, the amp would jump back on 15m for some reason. The whole thing started working reliably after I took LP Bridge out of the picture. In Win-Test if I define the radio on the real COM port the PC is connected to the K3 and change the pooling from Auto to 300msec the amp works well. I changed the band numerous times and Acom followed without a hitch. In my case LP-Bridge seems to be confusing the amp but I can't tell why. LP-Bridge does read everything correctly from the K3 and Win-Test works perfectly along with it. 73, Nick ve3ey On Sat, Sep 13, 2014 at 10:33 AM, Dick Dievendorff d...@elecraft.com wrote: I don't have an ACOM, SteppIR-controller, or Expert 1-KFA. I'd suggest that you don't want two TxD connections on an RS-232 Y connector. You need one from the PC to the K3. I don't think you want TxD from K3 to ACOM. RS-232 is not a protocol that permits two senders. It's ok to sniff the Rx line, multiple receivers. I doubt that the ACOM (or the Expert) polls the K3. I bet they are passive listeners. You need frequency messages to be presented to the ACOM on QSY. The normal technique for this is to turn on K3 Auto Info (a K3 menu configuration selection). Then as you QSY (or actually, your QSY stops), the K3 sends a message with the new frequency. If you are running a logging program, it probably polls the K3 for frequency often, and the ACOM can sniff those responses, and then the K3 Auto Info isn't as necessary. Some loggers don't mind if you leave Auto Info on. It's just extra information on change and the logger can either ignore or exploit those unsolicited messages. However it's possible that some loggers might not deal well with unexpected messages that can occur in auto info mode. Then K3 Auto Info has to be turned off (or the logging program needs to learn to deal with unexpected auto info messages). I think you're close, but I wouldn't connect two senders... 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Turner Sent: Saturday, September 13, 2014 7:03 AM To: acom-l...@yahoogroups.com Cc: Elecraft Subject: Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A ORIGINAL MESSAGE (may be snipped) On Sat, 13 Sep 2014 12:36:40 +0600, UA9CDC wrote: I do not have ACOM2000 but I use the same arrangement with Expert 1-KFA and K3. Logging program polls the radio and the amp only listens for K3 response to learn the operating freq. When you terminate logger there is no polling anymore. Therefore the system does not work as expected. This is normal. REPLY: So the K3 does not send data unless polled? OK, now things make more sense. This explains why, if you're not using the Y connector to your computer, your data cable must have the TXD wire so the ACOM can poll the K3. Is my assumption correct? The ACOM does poll the K3 in that case? Things are finally coming clear. I wish this had been explained in the ACOM manual. Many thanks to all who replied on this issue. 73, Bill W6WRT __ 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...@elecraft.com
Re: [Elecraft] [acom-list] Re: Elecraft K3 and ACOM 2000A
See K3 Config AUTOINF Regards, Mike VP8NO REPLY: So the K3 does not send data unless polled? OK, now things make more sense. This explains why, if you're not using the Y connector to your computer, your data cable must have the TXD wire so the ACOM can poll the K3. Is my assumption correct? The ACOM does poll the K3 in that case? Things are finally coming clear. I wish this had been explained in the ACOM manual. Many thanks to all who replied on this issue. 73, Bill W6WRT __ 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 looking for a part number for a....
50 ohm non reactive 1/4 watt axial lead resistor maybe 1% or better. I have a couple of old amphenol bnc 240 ohm terminators that I want to repurpose to 50 ohm. I am having trouble finding a non reactive part thats good up thru 500mhz. Jeff Herr, WW6L 4636 Kelton Way Sacramento, Ca 95838 916.925.6089 __ 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] [KX3] VHF BNC mod kit recommended with 2m module?
Matt, I have asked the same question to Eric at the HamRadio fair in Friedrichshafen. From what I understood, you don't need the mod because you can either operate on VHF or on HF. The mod makes sense if you have another VHF radio which you like to operate in parallel to the KX3. 73, Gernot DF5RF Am 11.09.2014 21:55, schrieb Matt VK2RQ: Well, my KX3 is an early model that predates the point at which this mod was phased into production. I understand that the transverter module uses a separate SMA jack; my question is, while using the transverter, could there be leakage out the HF/6m antenna on the BNC jack that may be picked up by the 2m antenna on the SMA jack? Or is the BNC jack disconnected during transverter operation in a way that would prevent any such leakage? 73, Matt VK2RQ On 12 Sep 2014, at 1:00 am, Wayne Burdick n...@elecraft.com wrote: This mod, which was phased into production long ago, only pertains to the HF-6 meter antenna jack (BNC). It has no impact on the 2-meter module, which uses the SMA jack. 73, Wayne N6KR On Sep 11, 2014, at 6:49 AM, Matt VK2RQ matt.vk...@gmail.com wrote: For early model KX3, there is a mod kit for the BNC connector which added extra filtering to reduce weak signal interference on VHF/UHF. Is this mod recommended if the 2m transverter is installed in the KX3? Will it cause interference to itself on 2m without the mod? 73, Matt VK2RQ __ 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 n...@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 g...@gmx.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] Remoting A KAT500
This topic may have been covered before, but I can't find it specifically in the archives. I am thinking of remoting my KAT500 ATU and using it at the base of a non-resonant vertical. My ideal is to install the tuner in a NEMA raintight box and powering with dc sent down the coax with bias-T's at both ends. I will have to rely on RF sensing since it would impractical to use control cables for the 60 ft run. Any thoughts? 73 de K6SBA David in Santa Barbara, CA __ 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: Antenna ideas for a cheap ham
I sent this to the reflector last Tuesday but it never posted on the reflector; here it is again: Date: Tue, 09 Sep 2014 09:03:13 -0800 To: Elecraft Reflector From: Edward R Cole kl...@acsalaska.net Subject: OT: Antenna ideas for a cheap ham This might be considered an offshoot of the OT R8 discussion - read on: A local ham friend dropped by to show my an antenna he had acquired wondering what freq. it covered. After looking it over I decided it was a 36-MHz quarter wave vertical with decoupling section at the base and fed with a gamma-match. The gamma has a 7/16 coax connector with N-female adapter, so apparently commercial band. My friend also recently acquired an 80-foot crank-up tower for $100 (Yes, you read that correctly). Some guys are really lucky! He lives on disability so has few funds for ham radio, but asks me what antennas he can put on top of his tower. He does not want a directional antenna like a yagi...sooo First we considered he could lengthen the 72-inch commercial vertical to operate on 10m and mount it on top of the tower. But that would only give him one band.He could also shorten it to 6m but there is little local activity on that band so 10m probably would provide him better use. For HF bands I thought about a dipole with auto-tuner. Finally thought maybe running sloping dipoles might work well. Base load that tower as grounded vertical? 160-40m? Another note: He has a tech-class license so that limits where he can operate. I suggested upgrading to General and he is not adverse to doing that. He owns a IC-706. Any suggestions? 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@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] KX3
Thanks to all who replied! I reseated all cables and I believe the problem is corrected. I also downloaded the latest firmware just in case, so all's well with the world. Really starting to like this little rig! 73, Mike - W0AG On Fri, Sep 12, 2014 at 9:29 PM, Walter Underwood wun...@wunderwood.org wrote: Open it up and reseat all the cables. This feels like the kind of flakiness that a poor cable connection causes. wunder K6WRU CM87wj http://observer.wunderwood.org/ On Sep 12, 2014, at 6:55 PM, Mike Murray w0agm...@gmail.com wrote: Just received an almost unused KX3 from a friend and seem to be having a major problem. When first turned on, all is well and everything functions as expected. After a time, it acts as though the VFO is locked and won't change freq., even if I change bands. It is not locked because I have tapped the RATE button just to be sure, but still won't change frequency - the last digit just blinks. Powering down and restarting seems to work for a while, but it eventually starts doing the same thing. I'm assuming it's OP error and would welcome any input as to what's going on and how I prevent it. Mike - W0AG __ 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] SSB net announcement
It looks like there is no NCS for tomorrow 's SSB net. Maybe someone can step forward and pick it up. Thanks. 73, Phil NS 7P On Sep 13, 2014, at 4:27 AM, Ian - Ham km4ik@gmail.com wrote: Can't do it this time, Phil. It's my son's birthday Sunday. My apologies. Have a great SOTA activation! 73 de, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 K3# 281, P3 #688, KPA500 #1468 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Shepard Sent: Friday, September 12, 2014 11:59 PM To: elecraft@mailman.qth.net Subject: [Elecraft] SSB net announcement Help! I forgot that I will be on a SOTA summit this Sunday. Can anyone take the NCS duty this week? Thanks 73, Phil NS7P __ 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 km4ik@gmail.com --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.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: Antenna ideas for a cheap ham
Ed, Since he does not want a beam, I would suggest 3 dipole antennas supported from his 80 ft. tower - OK, really 8 dipoles, but 3 feedlines. All of them would be inverted VEE type. One of them is a fan dipole for 10/15/20 meters. Position that one to favor his preferred DX locations. The next is a fan dipole for the WARC bands 30/17/12 - position that one at 90 degrees to the 10/15/20 dipole. The third is a broadband antenna for 80 and 40. See the ARRL Antenna Book 19th Edition (may also be in later versions) page 9-16 - A Simple Broadband Dipole for 80 Meters. It was initially described in a QST article in September 1993. It uses a 1 wavelength of RG-213 plus a 1/4 wavelength of RG-11 to produce a Transmission Line Resonator and will result in a 'double humped' SWR curve giving less than a 2:1 SWR from 3.5 MHz to 3.950 if the 80 meter wire is trimmed properly. A set of 40 meter wires can be added to this same coax giving both 80 and 40 meter coverage with a low SWR. Position the 4 radiator wires for this antenna at 45 degrees to the wires for the 10/15/20 meter and the 30/17/12 meter sets for minimum interaction. Yes, he would have to have an antenna switch to switch between the 3 coax feedlines, but that would give him 80 through 10 meter coverage. The 36 MHz antenna could be trimmed to 6 meters and added as a vertical on the tower for 80 through 6 meter coverage with 4 feedlines. For 160 meter coverage, run radials out from the tower and run it as a shunt fed vertical - yes, that probably is a 5th feedline, so use a 6 position coax switch and connect the 6th position to a dummy load to protect the equipment when it is not in use. He would not have to put up the WARC antennas until he has his General ticket. Other than the feedlines, the cost is as low as the wire used for the radiators and the baluns for each feedline. 73, Don W3FPR Date: Tue, 09 Sep 2014 09:03:13 -0800 To: Elecraft Reflector From: Edward R Cole kl...@acsalaska.net Subject: OT: Antenna ideas for a cheap ham This might be considered an offshoot of the OT R8 discussion - read on: A local ham friend dropped by to show my an antenna he had acquired wondering what freq. it covered. After looking it over I decided it was a 36-MHz quarter wave vertical with decoupling section at the base and fed with a gamma-match. The gamma has a 7/16 coax connector with N-female adapter, so apparently commercial band. My friend also recently acquired an 80-foot crank-up tower for $100 (Yes, you read that correctly). Some guys are really lucky! He lives on disability so has few funds for ham radio, but asks me what antennas he can put on top of his tower. He does not want a directional antenna like a yagi...sooo First we considered he could lengthen the 72-inch commercial vertical to operate on 10m and mount it on top of the tower. But that would only give him one band.He could also shorten it to 6m but there is little local activity on that band so 10m probably would provide him better use. For HF bands I thought about a dipole with auto-tuner. Finally thought maybe running sloping dipoles might work well. Base load that tower as grounded vertical? 160-40m? Another note: He has a tech-class license so that limits where he can operate. I suggested upgrading to General and he is not adverse to doing that. He owns a IC-706. Any suggestions? __ 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 looking for a part number for a....
Hi Jeff, Depending on the connector used, and the frequency of interest, I found the Caddock 1/4 W precision film resistors to be good to about 300 MHz, Try, RN55D49R9F. (49.9 ohm 1%) . Allied carries them. Mel, K6KBE On Saturday, September 13, 2014 12:49 PM, Jeff Herr her...@comcast.net wrote: 50 ohm non reactive 1/4 watt axial lead resistor maybe 1% or better. I have a couple of old amphenol bnc 240 ohm terminators that I want to repurpose to 50 ohm. I am having trouble finding a non reactive part thats good up thru 500mhz. Jeff Herr, WW6L 4636 Kelton Way Sacramento, Ca 95838 916.925.6089 __ 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 farrerfo...@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] OT: Antenna ideas for a cheap ham
One other comment regarding fan dipoles. They really work well, but if one attempts to put more than 3 bands on a fan dipole, the interaction can become frustrating to tune them all, been there, done that, and have all the scars. I separate the radiators in my fan dipoles by about 1 foot using PVC for the separators. It is important for the ends to be separated, but I like to begin the separation as close to the feedpoint as is practical. Cut the dipoles a bit long and tune them from the lowest band first to the highest band last to minimize the effects of interaction. Yes, I have successfully tuned a 6 band version of a fan dipole for a local ham, but it becomes a bit more of a challenge when going beyond 3 bands. 73, Don W3FPR --- Ed, Since he does not want a beam, I would suggest 3 dipole antennas supported from his 80 ft. tower - OK, really 8 dipoles, but 3 feedlines. All of them would be inverted VEE type. One of them is a fan dipole for 10/15/20 meters. Position that one to favor his preferred DX locations. The next is a fan dipole for the WARC bands 30/17/12 - position that one at 90 degrees to the 10/15/20 dipole. The third is a broadband antenna for 80 and 40. See the ARRL Antenna Book 19th Edition (may also be in later versions) page 9-16 - A Simple Broadband Dipole for 80 Meters. It was initially described in a QST article in September 1993. It uses a 1 wavelength of RG-213 plus a 1/4 wavelength of RG-11 to produce a Transmission Line Resonator and will result in a 'double humped' SWR curve giving less than a 2:1 SWR from 3.5 MHz to 3.950 if the 80 meter wire is trimmed properly. A set of 40 meter wires can be added to this same coax giving both 80 and 40 meter coverage with a low SWR. Position the 4 radiator wires for this antenna at 45 degrees to the wires for the 10/15/20 meter and the 30/17/12 meter sets for minimum interaction. Yes, he would have to have an antenna switch to switch between the 3 coax feedlines, but that would give him 80 through 10 meter coverage. The 36 MHz antenna could be trimmed to 6 meters and added as a vertical on the tower for 80 through 6 meter coverage with 4 feedlines. For 160 meter coverage, run radials out from the tower and run it as a shunt fed vertical - yes, that probably is a 5th feedline, so use a 6 position coax switch and connect the 6th position to a dummy load to protect the equipment when it is not in use. He would not have to put up the WARC antennas until he has his General ticket. Other than the feedlines, the cost is as low as the wire used for the radiators and the baluns for each feedline. 73, Don W3FPR Date: Tue, 09 Sep 2014 09:03:13 -0800 To: Elecraft Reflector From: Edward R Cole kl...@acsalaska.net Subject: OT: Antenna ideas for a cheap ham This might be considered an offshoot of the OT R8 discussion - read on: A local ham friend dropped by to show my an antenna he had acquired wondering what freq. it covered. After looking it over I decided it was a 36-MHz quarter wave vertical with decoupling section at the base and fed with a gamma-match. The gamma has a 7/16 coax connector with N-female adapter, so apparently commercial band. My friend also recently acquired an 80-foot crank-up tower for $100 (Yes, you read that correctly). Some guys are really lucky! He lives on disability so has few funds for ham radio, but asks me what antennas he can put on top of his tower. He does not want a directional antenna like a yagi...sooo First we considered he could lengthen the 72-inch commercial vertical to operate on 10m and mount it on top of the tower. But that would only give him one band.He could also shorten it to 6m but there is little local activity on that band so 10m probably would provide him better use. For HF bands I thought about a dipole with auto-tuner. Finally thought maybe running sloping dipoles might work well. Base load that tower as grounded vertical? 160-40m? Another note: He has a tech-class license so that limits where he can operate. I suggested upgrading to General and he is not adverse to doing that. He owns a IC-706. Any suggestions? __ 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 looking for a part number for a....
I would also suggest that the Caddock 50 ohm 915 series power film resistors be considered. Although these are rated at 15 watts with a heatsink, they are rated for 1.25 watts in free air. Mounted to the BNC connector with zero length leads, they should be good up to 500 MHz. See http://www.caddock.com/Online_catalog/Mrktg_Lit/MP9000_Series.pdf I use the higher power ratings (on a heatsink) for dummy loads, and they can be considered 'precision dummy loads' with a 1% tolerance and the top frequency depends on the lead length and other mounting considerations. 150 MHz is practical with little consideration for lead length. Warning - do not exceed the power ratings or they will 'let the smoke out' quickly. 73, Don W3FPR On 9/13/2014 7:17 PM, Mel Farrer via Elecraft wrote: Hi Jeff, Depending on the connector used, and the frequency of interest, I found the Caddock 1/4 W precision film resistors to be good to about 300 MHz, Try, RN55D49R9F. (49.9 ohm 1%) . Allied carries them. Mel, K6KBE On Saturday, September 13, 2014 12:49 PM, Jeff Herr her...@comcast.net wrote: 50 ohm non reactive 1/4 watt axial lead resistor maybe 1% or better. I have a couple of old amphenol bnc 240 ohm terminators that I want to repurpose to 50 ohm. I am having trouble finding a non reactive part thats good up thru 500mhz. Jeff Herr, WW6L 4636 Kelton Way Sacramento, Ca 95838 916.925.6089 __ 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 farrerfo...@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 w3...@embarqmail.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 looking for a part number for a....
Jeff I doubt you will find any axial leaded part that is good to 500 MHz because the package inductance will roll off response below 500 MHz. However if you insist on axial leaded there are any number of 50.1 ohm metal film, axial leaded parts available from Digikey www.digikey.com. Also Ohmite makes a 50.0 ohm, 50 watt resistor, NI, in a to220 case that is pretty good. Also available from Digikey. You can look up your own part numbers with their online finder. 73 Fred -Original Message- From: Jeff Herr her...@comcast.net Sent: Sep 13, 2014 3:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] OT looking for a part number for a 50 ohm non reactive 1/4 watt axial lead resistor maybe 1% or better. I have a couple of old amphenol bnc 240 ohm terminators that I want to repurpose to 50 ohm. I am having trouble finding a non reactive part thats good up thru 500mhz. Jeff Herr, WW6L 4636 Kelton Way Sacramento, Ca 95838 916.925.6089 __ 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 fptowns...@earthlink.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] Running Wide Split with FLDigi
This may be a simple question, but how does FLDigi run wide (2.5Khz) split with the K3?. The waterfall does not allow the transmit frequency to be locked further than the sound card bandwidth from the receive frequency. FYI, I do not have the K3 sub-receiver installed. I presume some variation of the RIT/XIT controls, the VFO B control, and/or FLRig needs to be used, rather than using the transmit ‘Lk’ on the waterfall. Thanks, Ron K2RAS __ 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: Antenna ideas for a cheap ham
If he has a long coax run, he should consider a remote antenna switch. I have one to keep the coax in the house to the YL's tolerance level. If he can locate it close enough to the feed points, he may be able to avoid multiple common mode chokes. 73 Bill AE6JV On 9/13/14 at 4:47 PM, w3...@embarqmail.com (Don Wilhelm) wrote: Yes, he would have to have an antenna switch to switch between the 3 coax feedlines, but that would give him 80 through 10 meter coverage. The 36 MHz antenna could be trimmed to 6 meters and added as a vertical on the tower for 80 through 6 meter coverage with 4 feedlines. For 160 meter coverage, run radials out from the tower and run it as a shunt fed vertical - yes, that probably is a 5th feedline, so use a 6 position coax switch and connect the 6th position to a dummy load to protect the equipment when it is not in use. He would not have to put up the WARC antennas until he has his General ticket. Other than the feedlines, the cost is as low as the wire used for the radiators and the baluns for each feedline. --- Bill Frantz| If the site is supported by | Periwinkle (408)356-8506 | ads, you are the product.| 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 __ 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 Wide Split with FLDigi
FYI, I am running Data A mode for digital operation with a SignaLink modem. Split mode does not appear to be available when running under Data A. Thanks, Ron -- View this message in context: http://elecraft.365791.n2.nabble.com/Running-Wide-Split-with-FLDigi-tp7593050p7593052.html Sent from the Elecraft mailing list archive at Nabble.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: Antenna ideas for a cheap ham
On Sat,9/13/2014 5:01 PM, Don Wilhelm wrote: One other comment regarding fan dipoles. They really work well, but if one attempts to put more than 3 bands on a fan dipole, the interaction can become frustrating to tune them all, been there, done that, and have all the scars. Strongly agree. Also, fans work best on harmonically related bands. 80/40 works very well, so does 20/15/10. 40/30/20 not so good. I use separations of about 9 inches for 20/15/10, and about 15 inches for 80/40. A very high 20/15/10 fan will have Zo near 50 ohms, but an equally high 80/40 will be closer to 75-80 ohms, depending on what your ground is. I feed my high 80/40s with RG11. Mine are up 110 ft. On any fan, the longest dipole will have it's normal SWR bandwidth, while the SWR bandwidths of the shorter dipole(s) will be about half normal. That works great for 80, which is the widest band as a percentage of frequency, and 40M is relatively narrow. No problem on 20/15/10 either, because we tend to use the bottom half of 10M. 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] OT: Antenna ideas for a cheap ham
I failed to mention another point with regard to fan dipoles. Do not mix 3rd harmonic radiators on the same coax. In other words, stay away from combinations of 40 meters and 15 meters, and also 40 meters and 30 meters. They may work, but tuning problems are 'iffy'. 73, Don W3FPR On 9/14/2014 1:08 AM, Jim Brown wrote: On Sat,9/13/2014 5:01 PM, Don Wilhelm wrote: One other comment regarding fan dipoles. They really work well, but if one attempts to put more than 3 bands on a fan dipole, the interaction can become frustrating to tune them all, been there, done that, and have all the scars. Strongly agree. Also, fans work best on harmonically related bands. 80/40 works very well, so does 20/15/10. 40/30/20 not so good. I use separations of about 9 inches for 20/15/10, and about 15 inches for 80/40. __ 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
