Re: [Elecraft] 6 khz cw question
n4lq wrote: I understand how to use the menus. Let me restate. The problem isWhen you do have the 6 khz filter engaged for cw, your DSP filter won't go wider than 2.8 therefore you can't listen to 6 khz bandwidth. What's up with that? It works find in SSB mode but not CW.. Steve Ellington [EMAIL PROTECTED] Why do you want a 6kHz bandwidth in CW? Most of us would find listening to CW with a pitch of that pretty well impossible. Or maybe you are using it with your PC soundcard with programs like CW Skimmer? (of which I have strong views which I won't repeat here...). Here I never use a filter any wider than 400Hz on CW, except very occasionally 1kHz in contests so I here people calling off channel. In normal use there really is no need for anything wider. 73 Dave G3YMC -- View this message in context: http://www.nabble.com/6-khz-cw-question-tp16656641p16656718.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] 6 khz cw question
Dave, Listening 6 kHz wide is fine if you listen up to 3 kHz UP AND DOWN your frequency. (So you might have a station on zero beat freq, who cares) Being an ex R/O used to listening on 500 kHz, this was normal operation. 73 Arie PA3A - Why do you want a 6kHz bandwidth in CW? Most of us would find listening to CW with a pitch of that pretty well impossible. Or maybe you are using it with your PC soundcard with programs like CW Skimmer? (of which I have strong views which I won't repeat here...). Here I never use a filter any wider than 400Hz on CW, except very occasionally 1kHz in contests so I here people calling off channel. In normal use there really is no need for anything wider. 73 Dave G3YMC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 SSB adapter problem
After I installed the K2 SSB adapter I get half or less power on all bands except 30 meter. On 20 almost nothing. SWR low through SGC239. Removed adapter and everything worked normal. Put the adapter back in and power is back to low level. It behaves like the SWR suddenly increased or SWR sense acts up. I checked voltages on the adapter and I have some levels way out of spec. T1 and T2 0 ohms on all windings. 13,5 volts PS, 0.1W, LSB 80m, FL1, TX from dot on paddle. My meter is probably shows .03v low RX TX U1-15 0.005.86a bit low U1-16 5.963.052.5 volts below spec U1-17 5.964.12 U1-25 0.001.43 U2-50.470.47 U2-65.435.43 U2-85.963.05 I guess it comes from the U2-8 output being way too low, but I am not sure why. Same U2-8 levels on all bands, even on 30 where the otput is OK on tune. Everything looks OK on the adapter. 73 Lennart -- View this message in context: http://www.nabble.com/K2-SSB-adapter-problem-tp16656760p16656760.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Need MARS info for K2 construction
Hello! I am Ken, N7SZ, from Spokane, Washington. I just started construction on my K2 (s/n 6459). I also have a KSB2 and KNB2 waiting to be built. I am in the process of joining NMC MARS, and would like to know how to properly assemble/adjust my K2 for use on MARS freq. How do I go about getting this info? NMC MARS only has 90 days of training, so I wanted to make sure and have the K2 ready to go when I am issued my MARS call. Thanks and 73, Ken ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SDU5600 Spectrum Scope Panadapter
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I thought all the AOR pan adapters were designed for a 10Mhz IF. The K3 IF is 8.215Mhz. Paul_Mayo wrote: | Has anyone tried to connect a AOR SDU 5600 to the K3, | Do you think it would work?? | | 73 Paul W4MAY - -- R. Kevin Stover, ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIAf7x11jxjloa2wsRAo2iAJ9tlmdTOYRobvYhMpe5gh4WT2X3TQCeJvwV hNLstFGy8oeqmkQAT+ZWnVU= =sV+u -END PGP SIGNATURE- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB adapter problem
Lennart, If you have transmit power problems in CW mode or TUNE, then the only part of the SSB opyion board that could cause that condition is Q1, Q2, Q3 and the associated components. Look at the KSB2 board schematic near the bottom and you will see which components need to be checked. There is no explanation for a band dependency related to the KSB2 board. It operates at the BFO and IF paths. 73, Don W3FPR Lennart wrote: After I installed the K2 SSB adapter I get half or less power on all bands except 30 meter. On 20 almost nothing. SWR low through SGC239. Removed adapter and everything worked normal. Put the adapter back in and power is back to low level. It behaves like the SWR suddenly increased or SWR sense acts up. I checked voltages on the adapter and I have some levels way out of spec. T1 and T2 0 ohms on all windings. 13,5 volts PS, 0.1W, LSB 80m, FL1, TX from dot on paddle. My meter is probably shows .03v low RX TX U1-15 0.005.86a bit low U1-16 5.963.052.5 volts below spec U1-17 5.964.12 U1-25 0.001.43 U2-50.470.47 U2-65.435.43 U2-85.963.05 I guess it comes from the U2-8 output being way too low, but I am not sure why. Same U2-8 levels on all bands, even on 30 where the otput is OK on tune. Everything looks OK on the adapter. 73 Lennart ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB adapter problem
Lernart: I had a similar problem with my K2 #6272. Gary sent me a response stating that T1 and T2 could cause a low power situation on the higher bands IF they were switch or the turn count was wrong or bad solders I checked all mine and found that I had all turns correct, they were in the correct location and all solder joints were good. I expanded on what Gary told me and started checking all related components. I found I had the wrong value in R10.It was suppose to be 100 ohm and I had put a 10K ohm resistor in that spot. Correcting the resistor error corrected the problem. Check you schematic and check all the components related to T1 and T2.. YMMV but it's worth a look. 72 Jerry N0JRN On 4/13/2008 5:00:20 AM, Lennart ([EMAIL PROTECTED]) wrote: After I installed the K2 SSB adapter I get half or less power on all ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB adapter problem
Jerry, T1 and T2 are not in the path for CW or TUNE, so they are not high on the list of suspects for Lernart's situation. OTOH, if the low power is on SSB (but CW and TUNE are good), then T1 and T2 would be the prime suspects. 73, Don W3FPR n0jrn wrote: Lernart: I had a similar problem with my K2 #6272. Gary sent me a response stating that T1 and T2 could cause a low power situation on the higher bands IF they were switch or the turn count was wrong or bad solders I checked all mine and found that I had all turns correct, they were in the correct location and all solder joints were good. I expanded on what Gary told me and started checking all related components. I found I had the wrong value in R10.It was suppose to be 100 ohm and I had put a 10K ohm resistor in that spot. Correcting the resistor error corrected the problem. Check you schematic and check all the components related to T1 and T2.. YMMV but it's worth a look. 72 Jerry N0JRN On 4/13/2008 5:00:20 AM, Lennart ([EMAIL PROTECTED]) wrote: After I installed the K2 SSB adapter I get half or less power on all ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6 khz cw question
Dave Why do you want a bandwidth of 2.7khz then? Most of us would also find listening to CW with that pitch impossible or annoying. You're missing the point here. We open up bandwidth so we can hear things. I would hate to tune around the band with a 400Hz filter. The point here is, a 6kHz crystal is install and selectable from the XFL menu so why does it tandem the 2.8kHz DSP? That is simply a bug and hopefully it will be fixed soon. Steve Ellington [EMAIL PROTECTED] - Original Message - From: G3YMC [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, April 13, 2008 2:14 AM Subject: Re: [Elecraft] 6 khz cw question n4lq wrote: I understand how to use the menus. Let me restate. The problem isWhen you do have the 6 khz filter engaged for cw, your DSP filter won't go wider than 2.8 therefore you can't listen to 6 khz bandwidth. What's up with that? It works find in SSB mode but not CW.. Steve Ellington [EMAIL PROTECTED] Why do you want a 6kHz bandwidth in CW? Most of us would find listening to CW with a pitch of that pretty well impossible. Or maybe you are using it with your PC soundcard with programs like CW Skimmer? (of which I have strong views which I won't repeat here...). Here I never use a filter any wider than 400Hz on CW, except very occasionally 1kHz in contests so I here people calling off channel. In normal use there really is no need for anything wider. 73 Dave G3YMC -- View this message in context: http://www.nabble.com/6-khz-cw-question-tp16656641p16656718.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.12/1374 - Release Date: 4/11/2008 4:59 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Out Board PA
I picked up the outboard PA/Tuner Kat100/KPA100 in one box. I went to turn on the PA in the K2 But All it has is (PA --) I cannot change the -- to on/ off or whatever. Does the Io cable have to hooked up for those? I am in the middle of modifying My KI02 cable to match the KAT100 Which I assume is the Input to run the tuner and the amp is this true? Also is there any docs on doing this anywhere? Thanks David KR4OW K2+100 4320 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Out Board PA
From what I recall, the I/O cable needs to be attached between the K2 and KPA100 before the PA menu changes. GL 73, Bob Johansen WB2SRF SI, NY K2 S/N 5622 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Out Board PA
Hi David, I also have my KPA100 and KAT100 in a separate EC2 enclosure and yes you have to connect the I/O cable from the K2 to either the KPA100 or KAT100 I/O ports. After the K2 initiates communication with one of those two modules, you will be able to turn on the PA option in the K2. Lyle, KK7P, has a nice web page that describes the process of placing the KPA100 in a separate enclosure and how to hook it all up. http://www.kk7p.com/k2kpa100.html Since you have the KIO2 module in your K2, the bottom end of the page will pertain to your operation. 73, Dave W8FGU -Original Message- From: [EMAIL PROTECTED] [mailto:elecraft- [EMAIL PROTECTED] On Behalf Of David N. Sent: Sunday, April 13, 2008 11:00 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Out Board PA I picked up the outboard PA/Tuner Kat100/KPA100 in one box. I went to turn on the PA in the K2 But All it has is (PA --) I cannot change the -- to on/ off or whatever. Does the Io cable have to hooked up for those? I am in the middle of modifying My KI02 cable to match the KAT100 Which I assume is the Input to run the tuner and the amp is this true? Also is there any docs on doing this anywhere? Thanks David KR4OW K2+100 4320 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] k2 air test
hi today i tryed my k2 on the air with my indoor loop ant i found the 20m band poor but got to work 2 stations og6n got me a 5/9 report and lz2lp got me a 5/5 report my k2 is giveing about 10w with a 3ahc gell battery my mic is a astatic tear drop i did the g3rxq audio mod on the ssb my k2 sounds good on the air so now to build the nb and atu soon be ready for portable working so wheres summer and good open bands to work dx he he chris g0wfh k2 sno 6463 k3 sno 123 days to go and counting :-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KPA100 Output not adjustable
Hi elecrafters, since this morning i have a problem with my KPA100. I cannot adjust t rf output. In the high mode, i always have more than 100W with a dummy load. In QRP mode, i can adjust .5 to 10w. When i reach the 10w, the power goes directly (jumps) to the maximum power of about 100w. Any ideas? Thank you Michael, DC0ZO K2#5619, K2#6454 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Buddipoles and KX1
Does anyone have experience with the Buddipole system? I just ordered a KX1 with all the bells and whistles and I'm thinking about adding the Buddipole to the order. Any suggestions for alternative, portable antenna systems? Thanks, Tom (no call sign yet, taking the tests in May) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 Output not adjustable
Michael, At low power settings, does the actual power output go up to over 12 watts? If so, the diodes in the KPA100 wattmeter have been damaged (likely by a lightning induced static). Replace D16 and D17 in the KPA100 and you should regain power control for both high and lo ranges. To prevent that damage in the future, remove or ground your antennas when not in use. If you do have good power control for the .5 to 10 watt range when the KPA100 is also in-line, then you may have a different problem, please restate the situation. 73, Don W3FPR Michael van Hauten wrote: Hi elecrafters, since this morning i have a problem with my KPA100. I cannot adjust t rf output. In the high mode, i always have more than 100W with a dummy load. In QRP mode, i can adjust .5 to 10w. When i reach the 10w, the power goes directly (jumps) to the maximum power of about 100w. Any ideas? Thank you Michael, DC0ZO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Out Board PA
I had a K2 for a while, long story. It was the 10 watt version and I had planned to connect it to my Ameritron ALS-500 which I run on my base station. It needs only the PTT signal from the radio (available on most radios) to go to transmit mode. I'm sure I could have found one on the K2. It is a 500 watt amp with 100 watts in BUT testing with 10 Watts in gives 160 watts out. It would have worked fine but do not have the K2 any longer. You could likely use almost any amp (use the necessary isolation relay so as not to damage the radio). K3 on order. 73, Jim - Original Message - From: Dave Van Wallaghen [EMAIL PROTECTED] To: 'David N.' [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Sunday, April 13, 2008 10:30 AM Subject: RE: [Elecraft] Out Board PA Hi David, I also have my KPA100 and KAT100 in a separate EC2 enclosure and yes you have to connect the I/O cable from the K2 to either the KPA100 or KAT100 I/O ports. After the K2 initiates communication with one of those two modules, you will be able to turn on the PA option in the K2. Lyle, KK7P, has a nice web page that describes the process of placing the KPA100 in a separate enclosure and how to hook it all up. http://www.kk7p.com/k2kpa100.html Since you have the KIO2 module in your K2, the bottom end of the page will pertain to your operation. 73, Dave W8FGU -Original Message- From: [EMAIL PROTECTED] [mailto:elecraft- [EMAIL PROTECTED] On Behalf Of David N. Sent: Sunday, April 13, 2008 11:00 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Out Board PA I picked up the outboard PA/Tuner Kat100/KPA100 in one box. I went to turn on the PA in the K2 But All it has is (PA --) I cannot change the -- to on/ off or whatever. Does the Io cable have to hooked up for those? I am in the middle of modifying My KI02 cable to match the KAT100 Which I assume is the Input to run the tuner and the amp is this true? Also is there any docs on doing this anywhere? Thanks David KR4OW K2+100 4320 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1
I acquired a K1 last week. The rig drifts terribly. I had it set to 7050.5 and answered a CQ, by the time I sent DE N1URA K the rig was already on 7050.3 . I left the rig sitting for a while and when I came back to it, the display read E42. Any ideas on how to correct this?? Thank you -Cory ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K1
Cory, The E42 error means there is something wrong with the VFO - most likely a bad solder joint or an improperly tinned toroid lead. Check the schematic to determine the components in the VFO and examine them carefully, resoldering where necessary. Once you find the problem source, I would believe it may also correct the drift. The K1 does not normally drift more than a few Hz. 73, Don W3FPR Cory Golob wrote: I acquired a K1 last week. The rig drifts terribly. I had it set to 7050.5 and answered a CQ, by the time I sent DE N1URA K the rig was already on 7050.3 . I left the rig sitting for a while and when I came back to it, the display read E42. Any ideas on how to correct this?? Thank you ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FDIM Speaker is named 'Amateur Of The Year 2008
Last year at FDIM we had Lyle Johnson KK7P as one of the seminar speakers just two weeks after the Elecraft K3 was announced. This year we have another presenter in the news. Ward Silver N0AX has just been named 'Amateur Of The Year 2008'. He will be delivering the opening presentation at the FDIM seminars entitled - How To Dance With The Elephants - QRP Contesting Strategy and Style FDIM details - http://www.fdim.qrparci.org Amateur Of The Year info - http://www.arrl.org/news/stories/2008/04/11/10050/ -- 73 Steve, G4GXL -- QRP ARCI Webmaster - www.qrparci.org FDIM 2008 Webmaster - www.fdim.qrparci.org Member: QRP ARCI, AMSAT-UK, G-QRP, TAPR, ARRL, RSGB http://www.ServaLink.net - monitoring your website 24/7 Email or phone notification of faults, hacks and outages within 60 seconds Take our 14 day FREE TRIAL ! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WA3WSJ's QRP AT PA Hike
Hello all, I'll start my AT hike in Duncannon, PA and hike into Boiling Springs, PA four days later. Keep an ear out for me in the mornings and evenings. Here's my hike schedule: Friday, 4/25: Cove Mtn Shelter on AT Sat., 4/26: Darlington Shelter on AT Sun., 4/27: US Rt.11 Motel Monday, 4/28: Boiling Springs, PA I should be on the air around 8am and 7pm EDT. Look for me around 14.060, 10.116 and 7.030mhz. If you work me, I'll qsl to you with my custom Kangaroo Ed QSL Card- hi! http://www.wa3wsj.homestead.com 72, Kangaroo Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Not Elecraft - PA3AKE High Pergormance Front End Upgrade
Hi all, for those of you interested on high performance analog front-end I have the pleasure to inform that Martein, PA3AKE, has just updated his website. Please look at the following: o Front-end Board X H-Mode Mixer X Roofing Filters X SSB X CW in particular the release of the front-end board with additional 500Hz CW roofing filter. This update is complete with schematics, part list, PCB artwork and last but not least extensive performance measurements. Enjoy the visit and reading 73 Gian I7SWX __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Out Board PA
I also have my KPA100 and KAT100 in a separate EC2 enclosure and yes you have to connect the I/O cable from the K2 to either the KPA100 or KAT100 I/O ports. After the K2 initiates communication with one of those two modules, you will be able to turn on the PA option in the K2. Lyle, KK7P, has a nice web page that describes the process of placing the KPA100 in a separate enclosure and how to hook it all up. http://www.kk7p.com/k2kpa100.html More pictures of the EC2: www.n4lcd.com/k2 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: Not Elecraft - PA3AKE High Pergormance Front End Upgrade
link: http://www.xs4all.nl/~martein/pa3ake/hmode/ 73 Gian --- Giancarlo Moda [EMAIL PROTECTED] wrote: Hi all, for those of you interested on high performance analog front-end I have the pleasure to inform that Martein, PA3AKE, has just updated his website. Please look at the following: o Front-end Board XH-Mode Mixer XRoofing Filters X SSB X CW in particular the release of the front-end board with additional 500Hz CW roofing filter. This update is complete with schematics, part list, PCB artwork and last but not least extensive performance measurements. Enjoy the visit and reading 73 Gian I7SWX __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] circular locking nuts for the paddle and key inputs on k3
Hi In my kit there were no circular locking nuts for these 2 phone inputs .. unlike the phones jack on the front .. are there supposed to be locking nuts on these 2 inputs Tnx de zl1any -- Stephen Pearce Whangarei ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] circular locking nuts for the paddle and key inputs on k3
No. Only the front panel phones jack has a nut. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of stephen pearce Sent: Sunday, April 13, 2008 3:12 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] circular locking nuts for the paddle and key inputs on k3 Hi In my kit there were no circular locking nuts for these 2 phone inputs .. unlike the phones jack on the front .. are there supposed to be locking nuts on these 2 inputs Tnx de zl1any -- Stephen Pearce Whangarei ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Tx error message
Hello lucky K3 owners, I'm getting a ERR TxF message when trying to set the Tx Gain! Can anyone tell me what I'm doing wrong? Thanks, John N2KBE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Buddipoles and KX1
I have a KX-1 and a BuddiStick, although I haven't used them together yet. If you have the bulit-in antenna tuner, then there's no need to spend all that money on a BuddiStick. I have had success with the 28- ft. wire with four radials as described in the tuner manual. Last time I went portable with it, I built a 66-ft. doublet fed with twisted pair and strung it up between two tree limbs about 15 feet high. This antenna tuned up easily and worked really great. My simplistic theory is that the more wire you can get into the air, the better an antenna will work. The BuddiPole is a well-designed and built antenna, but I would think that my 66-foot doublet has got to be more efficientand much cheaper, too! 73! Dan KB6NU -- CW Geek and MI Affiliated Club Coordinator Read my ham radio blog at http://www.kb6nu.com LET'S GET MORE KIDS INTO HAM RADIO! On Apr 13, 2008, at Apr 13, 12:08 PM, Tom Pallen wrote: Does anyone have experience with the Buddipole system? I just ordered a KX1 with all the bells and whistles and I'm thinking about adding the Buddipole to the order. Any suggestions for alternative, portable antenna systems? Thanks, Tom (no call sign yet, taking the tests in May) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] k2 air test
Sounds great Chris Here in the Northwest USA we already had summer. It was yesterday with sunshine and temps near 70F. Back to the wet stuff today. The next sunspot peak will be a bit slower in coming but, hopefully, will last a bit longer. Ron AC7AC -Original Message- hi today i tryed my k2 on the air with my indoor loop ant i found the 20m band poor but got to work 2 stations og6n got me a 5/9 report and lz2lp got me a 5/5 report my k2 is giveing about 10w with a 3ahc gell battery my mic is a astatic tear drop i did the g3rxq audio mod on the ssb my k2 sounds good on the air so now to build the nb and atu soon be ready for portable working so wheres summer and good open bands to work dx he he chris g0wfh k2 sno 6463 k3 sno 123 days to go and counting :-) ___ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Tx error message
Have you enabled either the 2.7 or 2.8 filter (whichever one you are using) for CW and SSB transmit? Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Trager Sent: Sunday, April 13, 2008 3:19 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Tx error message Hello lucky K3 owners, I'm getting a ERR TxF message when trying to set the Tx Gain! Can anyone tell me what I'm doing wrong? Thanks, John N2KBE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] XFIL button K3
Why is it that when I tap the XFIL button on K3, doesn't it always go to the next filter? For instance, if I turn the rig off and then back on, it just continues to stay at FL1 when I push the XFIL button. I I do anything with the config menu, then it seems to work... Thanks, John ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] (no subject)
___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] : Solder issue with the KBPF3 module
I have just received the KBPF3 module for an upgrade and finding that one lead is broken also. Frankly this is a failure waiting to happen. The toroid is not secured to the board in any way, the leads are very thin (#28) and there was no protection against damage the way the board was shipped in a zip-loc bag. The only way to repair this would be to unwind one turn and join the magnet wire with something in my junk wire collection. This I do not want to do so I have E-mailed Elecraft for a replacement inductor. 73 Knut - AB2TC Raymond METZGER wrote: Hi Elecrafters, I am building my K3 kit and currently installing the KBPF3 module. Unfortunately, one lead of the inductor L18 on this module is broken. Can I use a regular 40/60 tin/lead solder to repair this broken lead, or is it necessary to use lead free solder ? Raymond, F4FNT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://www.nabble.com/-K3--%3A-Solder-issue-with-the-KBPF3-module-tp16650694p16669753.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Audio problem in WPX SSB
Andy, Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is playing, the mic is shut off, but the audio from the computer goes into the mic connector of the radio. As soon as it stops playing, it disconnects the computer and reconnects the microphone. I run it from the computer into a W2IHY iBox for isolation, and the output to the radio. The Mic is a Heil pro-set. With the K3, the messages play fine, but after one finishes, if I use the mic, the radio starts out at lower power and takes 2-4 seconds to build back up to high power. This is the same whether using the front or rear input and whether using high or low gain. After working in this quite a bit over the weekend the problem is related to the K3 microphone AGC. It appears that levels from the microphone and DVK must be extremely well balanced - much more closely balanced than with any other radio or the stronger input will cause the microphone AGC to reduce the mic gain and the weaker input will be much weaker. The 2-4 second delay seems to be related to an extremely long ACG time constant (probably intended to prevent the ACG from acting like a clipper). The problem is made worse - at least in my case - because the ALC indicator provides only 5 very small, difficult to see, bars for adjustment and the steps are rather course (6 dB per division). This means that the maximum spread between the two inputs can be almost 12 dB (!) even when the display only shows a slight flicker between the two adjacent bars (e.g., the mic is barely triggering the 5th bar and the DVK is hitting the sixth bar hard). After some thought there are several ways (a combination of all is best) to help the situation: 1) reduce the time constant (AGC hang) to about .5 second and dump any gain reduction when the PTT is released. 2) Use more of the ALC display to get better resolution. There are 12 bars in that part of the display but only six are used (with the sixth indicating overdrive). At least expand the good range to seven (or eight) bars to coincide with the right edge of the ALC bracket. 3) Make the ALC display response logarithmic (like a VU meter). Instead of 5 x 6 dB or 30 dB total ... the same total range could be displayed with the first bar = -20 dB, the second = -10 dB, the third = -7 dB, the fourth = -5 dB, the fifth = -3 dB, the sixth -1 dB, the seventh = 0 dB, the eighth +1 dB, the ninth +3 dB and the 10th +6 dB. Setting/matching levels would be MUCH easier. It's no accident that professional recording and broadcasting have used similar scales for decades. 4) Give the ALC meter a dual mode display - showing both short duration peak and average (the current ALC) would help. Alternatively, any peak hold dot above the ALC region could show gain reduction by the mic AGC (and warn about overdriving the input). 5) Provide a set-up mode that disables mic AGC - this will allow balancing sources (either FP/RP/Line or multiple inputs on an external mixer) without chasing the effects of the mic AGC. I understand there has been some work on the mic AGC in the firmware currently in test and that may help. However, this area needs to be more user friendly. As it is, I can see significant issues when using the K3 in a multi-operator setting where the relative levels need to be reset completely for every operator change! 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andy Faber Sent: Monday, April 07, 2008 12:08 AM To: [EMAIL PROTECTED]; wayne burdick Cc: elecraft@mailman.qth.net Subject: [Elecraft] Audio problem in WPX SSB Wayne, A peculiar audio situation arose using my K3 in Aruba in WPX SSB. It works the same way at home, and isn't a problem I've ever had with any of many other radios that I've used in the same contest configuration. Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is playing, the mic is shut off, but the audio from the computer goes into the mic connector of the radio. As soon as it stops playing, it disconnects the computer and reconnects the microphone. I run it from the computer into a W2IHY iBox for isolation, and the output to the radio. The Mic is a Heil pro-set. With the K3, the messages play fine, but after one finishes, if I use the mic, the radio starts out at lower power and takes 2-4 seconds to build back up to high power. This is the same whether using the front or rear input and whether using high or low gain. Also, the W2IHY box has to be turned up to a level that
RE: [Elecraft] ALC Setting was (Audio problem in WPX SSB)
I agree that corresponding with the end of the ALC bracket makes sense. I remember looking at the pictures of the radio after it was mentioned that the 6th bar was overdrive and I was thinking it odd that the overdrive point didn't correspond to the end of the ALC brackets. My Kenwood has a line that tells one where the ALC kicks in. It just seems like that type of operation makes intuitive sense where as the 5 bars thing is something that one would have to read the manual/reflector to know. On Sun, 2008-04-13 at 21:56 -0400, Joe Subich, W4TV wrote: Andy, Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is playing, the mic is shut off, but the audio from the computer goes into the mic connector of the radio. As soon as it stops playing, it disconnects the computer and reconnects the microphone. I run it from the computer into a W2IHY iBox for isolation, and the output to the radio. The Mic is a Heil pro-set. With the K3, the messages play fine, but after one finishes, if I use the mic, the radio starts out at lower power and takes 2-4 seconds to build back up to high power. This is the same whether using the front or rear input and whether using high or low gain. After working in this quite a bit over the weekend the problem is related to the K3 microphone AGC. It appears that levels from the microphone and DVK must be extremely well balanced - much more closely balanced than with any other radio or the stronger input will cause the microphone AGC to reduce the mic gain and the weaker input will be much weaker. The 2-4 second delay seems to be related to an extremely long ACG time constant (probably intended to prevent the ACG from acting like a clipper). The problem is made worse - at least in my case - because the ALC indicator provides only 5 very small, difficult to see, bars for adjustment and the steps are rather course (6 dB per division). This means that the maximum spread between the two inputs can be almost 12 dB (!) even when the display only shows a slight flicker between the two adjacent bars (e.g., the mic is barely triggering the 5th bar and the DVK is hitting the sixth bar hard). After some thought there are several ways (a combination of all is best) to help the situation: 1) reduce the time constant (AGC hang) to about .5 second and dump any gain reduction when the PTT is released. 2) Use more of the ALC display to get better resolution. There are 12 bars in that part of the display but only six are used (with the sixth indicating overdrive). At least expand the good range to seven (or eight) bars to coincide with the right edge of the ALC bracket. 3) Make the ALC display response logarithmic (like a VU meter). Instead of 5 x 6 dB or 30 dB total ... the same total range could be displayed with the first bar = -20 dB, the second = -10 dB, the third = -7 dB, the fourth = -5 dB, the fifth = -3 dB, the sixth -1 dB, the seventh = 0 dB, the eighth +1 dB, the ninth +3 dB and the 10th +6 dB. Setting/matching levels would be MUCH easier. It's no accident that professional recording and broadcasting have used similar scales for decades. 4) Give the ALC meter a dual mode display - showing both short duration peak and average (the current ALC) would help. Alternatively, any peak hold dot above the ALC region could show gain reduction by the mic AGC (and warn about overdriving the input). 5) Provide a set-up mode that disables mic AGC - this will allow balancing sources (either FP/RP/Line or multiple inputs on an external mixer) without chasing the effects of the mic AGC. I understand there has been some work on the mic AGC in the firmware currently in test and that may help. However, this area needs to be more user friendly. As it is, I can see significant issues when using the K3 in a multi-operator setting where the relative levels need to be reset completely for every operator change! 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andy Faber Sent: Monday, April 07, 2008 12:08 AM To: [EMAIL PROTECTED]; wayne burdick Cc: elecraft@mailman.qth.net Subject: [Elecraft] Audio problem in WPX SSB Wayne, A peculiar audio situation arose using my K3 in Aruba in WPX SSB. It works the same way at home, and isn't a problem I've ever had with any of many other radios that I've used in the same contest configuration. Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is
[Elecraft] First K3 PSK contact
I tried the K3 CW interface tonight and answered the CQ of CO6FU/QRP on PSK31. It was very interesting to be able to hold a conversation with John using CW on my end and PSK on his. He was 5 watts and I was 50 watts. Anyway it really works. I am glad that I read about sending dit-dit-dah-dah (IM) at the end of my transmission to make the transmission on my end stop quickly otherwise I would idle transmit for four seconds. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Report for April 13th 14th, 2008
Good Evening, Twenty meters was not conducive to radiotelegraphy today. Total of three check ins. However, one of them was from Curacao. He reported a temperature in the 90s. But, then on twenty meters I had three folks tell me of the HOT temperatures in the Southwest. One of them was in Carlsbad but the conditions were so poor on Dale's signal I was unsure of which Carlsbad. I've only been to the one in New Mexico; hence the Southwestern appellation. Otherwise John and Pete both had 90 degree temperatures in California. Friday it felt that hot here but it was only 72 degrees. My first day without a fire in a very long time. Today the temperature went back to normal and the rains returned. Tomorrow there will be more snow to contend with but I am not going anywhere. Two daffodils are open; poor things. I told them not to hurry but they think spring should be here. Hopefully they won't freeze too badly over the next two days. By Wednesday the temperature will be in the 50s so they only have two nights of freezing weather to endure. Most of the other buds are a week or more away. On to the lists = On 14050 kHz at 2300z: K9DMV - Joe - IL - K2 - 5628 QNI #25!!! PJ2/AB9V - Mike - Curacao, Netherlands Antilles WB3AAL - Ron - PA - K2 - 1392 On 7045 kHz at 0200z: W0CZ - Ken - ND - K3 - 457 W6ZH - Pete - CA - K2 - 5138* QNI #115 * K4JPN - Steve - GA - K2 - 1422 KT5E - Jay - CO - K3 - 274QNI #85!!! KL7CW - Rick - AK - KX1 - 798 N7KRT - Jeff - TX - K2 - 5471 K9ZTV - Kent - MO - K3 - 21 QNI #35!!! K2HYD - Ray - NC - KX1 - 608 W0SZ - Steve - CO - K3 - 176 N6JW - John - CA - K2 - 3290 N5SM - Scott - TX - K2 - 6417 K9DMV - Joe - IL - K2 - 5628 K6PJV - Dale - NM/CA? - K2 - 5345 KC0UZA - Mike - MO - K2 - 5950 WG7Y - Bob - WY - K1 - 2140 After reworking the spreadsheet I think I have everything back in order. I had to extend to a new sheet and if you have examined the document available for download from ecn.visionseer.com you'll see why. Now it will last for another three years. Hopefully we will all be here when I have to re-extend the sheet! If there are any errors or propagation reports from those I missed please write me. For all of you who are spending their last few minutes before April 15th looking for another deduction: good luck to you!! Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Audio problem in WPX SSB
Joe, Thanks for the very thoughtful analysis. I'm very pleased to say that the problem seems to be greatly reduced with the latest firmware (1.81/1.63). I can't tell if it is completely eliminated, but it's certainly much reduced. Lyle, Wayne, what did you do? Whatever it is, it seems to have helped greatly. 73, andy, ae6y - Original Message - From: Joe Subich, W4TV [EMAIL PROTECTED] To: 'Andy Faber' [EMAIL PROTECTED]; 'wayne burdick' [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Sunday, April 13, 2008 6:56 PM Subject: RE: [Elecraft] Audio problem in WPX SSB Andy, Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is playing, the mic is shut off, but the audio from the computer goes into the mic connector of the radio. As soon as it stops playing, it disconnects the computer and reconnects the microphone. I run it from the computer into a W2IHY iBox for isolation, and the output to the radio. The Mic is a Heil pro-set. With the K3, the messages play fine, but after one finishes, if I use the mic, the radio starts out at lower power and takes 2-4 seconds to build back up to high power. This is the same whether using the front or rear input and whether using high or low gain. After working in this quite a bit over the weekend the problem is related to the K3 microphone AGC. It appears that levels from the microphone and DVK must be extremely well balanced - much more closely balanced than with any other radio or the stronger input will cause the microphone AGC to reduce the mic gain and the weaker input will be much weaker. The 2-4 second delay seems to be related to an extremely long ACG time constant (probably intended to prevent the ACG from acting like a clipper). The problem is made worse - at least in my case - because the ALC indicator provides only 5 very small, difficult to see, bars for adjustment and the steps are rather course (6 dB per division). This means that the maximum spread between the two inputs can be almost 12 dB (!) even when the display only shows a slight flicker between the two adjacent bars (e.g., the mic is barely triggering the 5th bar and the DVK is hitting the sixth bar hard). After some thought there are several ways (a combination of all is best) to help the situation: 1) reduce the time constant (AGC hang) to about .5 second and dump any gain reduction when the PTT is released. 2) Use more of the ALC display to get better resolution. There are 12 bars in that part of the display but only six are used (with the sixth indicating overdrive). At least expand the good range to seven (or eight) bars to coincide with the right edge of the ALC bracket. 3) Make the ALC display response logarithmic (like a VU meter). Instead of 5 x 6 dB or 30 dB total ... the same total range could be displayed with the first bar = -20 dB, the second = -10 dB, the third = -7 dB, the fourth = -5 dB, the fifth = -3 dB, the sixth -1 dB, the seventh = 0 dB, the eighth +1 dB, the ninth +3 dB and the 10th +6 dB. Setting/matching levels would be MUCH easier. It's no accident that professional recording and broadcasting have used similar scales for decades. 4) Give the ALC meter a dual mode display - showing both short duration peak and average (the current ALC) would help. Alternatively, any peak hold dot above the ALC region could show gain reduction by the mic AGC (and warn about overdriving the input). 5) Provide a set-up mode that disables mic AGC - this will allow balancing sources (either FP/RP/Line or multiple inputs on an external mixer) without chasing the effects of the mic AGC. I understand there has been some work on the mic AGC in the firmware currently in test and that may help. However, this area needs to be more user friendly. As it is, I can see significant issues when using the K3 in a multi-operator setting where the relative levels need to be reset completely for every operator change! 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andy Faber Sent: Monday, April 07, 2008 12:08 AM To: [EMAIL PROTECTED]; wayne burdick Cc: elecraft@mailman.qth.net Subject: [Elecraft] Audio problem in WPX SSB Wayne, A peculiar audio situation arose using my K3 in Aruba in WPX SSB. It works the same way at home, and isn't a problem I've ever had with any of many other radios that I've used in the same contest configuration. Here is what happens: For phone contesting, I my software CQPWIN, which plays wav files for DVK usage (as do other programs). I run the output in such a way that when the dvk is playing, the mic is shut off, but the audio from the computer goes into the mic connector of the radio. As soon as it stops playing, it disconnects the computer and reconnects the microphone. I run it from the
Re: [Elecraft] Buddipoles and KX1
I agree: The best lengths for a doublet are 44ft and 88ft and multiples thereof. Have a look at Cebick's site. These lengths avoid nasty tuning conditions which can create large voltages and inefficiencies in your matching unit. 73 David G3UNA - Original Message - From: Romanchik Dan [EMAIL PROTECTED] To: Mailing List Elecraft elecraft@mailman.qth.net Sent: Sunday, April 13, 2008 11:19 PM Subject: Re: [Elecraft] Buddipoles and KX1 I have a KX-1 and a BuddiStick, although I haven't used them together yet. If you have the bulit-in antenna tuner, then there's no need to spend all that money on a BuddiStick. I have had success with the 28- ft. wire with four radials as described in the tuner manual. Last time I went portable with it, I built a 66-ft. doublet fed with twisted pair and strung it up between two tree limbs about 15 feet high. This antenna tuned up easily and worked really great. My simplistic theory is that the more wire you can get into the air, the better an antenna will work. The BuddiPole is a well-designed and built antenna, but I would think that my 66-foot doublet has got to be more efficientand much cheaper, too! 73! Dan KB6NU -- CW Geek and MI Affiliated Club Coordinator Read my ham radio blog at http://www.kb6nu.com LET'S GET MORE KIDS INTO HAM RADIO! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
