Re: [Elecraft] Power Supply Lead
Thanks for the many comments. The 6 foot length was my real concern. If the K2 can live with the .14 volt drop then all is well. 73, Steve AA4AK K2 # 5383 (almost in hand) At 05:24 PM 2/23/2006, Vic Rosenthal wrote: Stephen W. Kercel wrote: Elecrafters: I have a prefabricated (West Mountain) power lead made of zip cord consisting of No 10 stranded cables. It is 6 feet long and has factory installed Anderson power poles on one end and factory installed 1/4 inch ring connectors on the other. Is this cable heavy enough to connect my power supply to a K2/100? Yes. 6 feet of no. 10 should have a resistance of 0.007 ohms, so at 20 amps the voltage drop will be 0.14 volt. As far as heat dissipation, no. 10 is spec'd for use in cables at up to 33 amps. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] RE: antenna query
Gents, I've received many interesting suggestions and lots of help on my antenna query. I thank all who emailed me here and directly to my home. There seems to be as many thoughts on antennas as there are Amateurs. Thanks again. 73, Ralph, VE7OM ___ 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] Re:QRP Antenna
I have had some very good results with the K1 and the following: 1- MFJ-1910 33' fiberglass telescoping pole. 5 ea. of 33' lengths of #24 guage hookup wire (the MIL-SPEC stuff with striped color coding on it. Any hookup wire is OK.) 1 ea 25' length of same hookup wire. I use a heavy photo tripod and bungee to anchor the pole. In wind you will need 3 gallon jugs full of water and more bungee to anchor the legs! Run a 33' wire up the MFJ mast and right into hot BNC jack pin, and two to four 33' radials to the ground side of BNC connector. I use a Pomona BNC to binding post adapter. This performs well on 40-15 meters with a built-in KAT1 tuner. Will work equally well with a small "T" network MFJ tuner if you don't have a KAT1. I even have four 67' length wires I use when I have the 160/80 meter RF board in the K1 on 80 meters. Three for radials and one for first 33' of vertical antenna and the other 33-34' drooping off to one side. The MFJ pole is convienant and sets up very quickly. No good for back-packing, but I don't worry about that as I'm too damned old for that kinda stuff anymore! This worked well when we lost power here for 10 days after Katrina struck the area! Worked on a 4.5 A/H gell-cell battery and a small solar panel to charge it up. 73, Sandy W5TVW - Original Message - From: "Stuart Rohre" <[EMAIL PROTECTED]> To: "Clark Macaulay" <[EMAIL PROTECTED]>; "ElecraftList" Sent: Thursday, February 23, 2006 9:27 PM Subject: Re: [Elecraft] Re:QRP Antenna | Verticals are probably preferred for tight locations, and in any case have a | nice low angle of radiation even given ground mounting, or low elevated | mounting. Of the two, if you can get the antenna up six or more feet, so | much the better. Then you could use gull wing elevated radials to improve | it further without needing more than say 8 radials. If you have few | radials, be sure to put them in the directions of ham population centers. | | Don't forget that you can use long path to advantage when attempting to work | DX. Long path can be skewed from the great circle projection so if the | dipole is not aligned perfectly, it may still work for you. When using an | inverted Vee, you "might" get some gain putting a director wire slanted on | one side, to augment radiation in the desired direction. The sloping Vee | beam idea from Ten Tec is also of merit for the higher bands when they are | open. 100 foot legs or more, and try to have the antenna 30 feet high at | the apex of the vee, where you feed it. Ten Tec model is terminated, but | non terminated is easier, and then will give you bi-directional coverage, | albeit one at a high angle and the other low. Still might make for | interesting DX. I have used 5 wave legs on a Vee beam at 10 meters, and I | can testify that is a DX burner! | | -Stuart | K5KVH | | | | ___ | 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 Free Edition. | Version: 7.1.375 / Virus Database: 268.0.0/267 - Release Date: 2/22/2006 | | ___ 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] Test
Test via Gmail ___ 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] Re:QRP Antenna
Verticals are probably preferred for tight locations, and in any case have a nice low angle of radiation even given ground mounting, or low elevated mounting. Of the two, if you can get the antenna up six or more feet, so much the better. Then you could use gull wing elevated radials to improve it further without needing more than say 8 radials. If you have few radials, be sure to put them in the directions of ham population centers. Don't forget that you can use long path to advantage when attempting to work DX. Long path can be skewed from the great circle projection so if the dipole is not aligned perfectly, it may still work for you. When using an inverted Vee, you "might" get some gain putting a director wire slanted on one side, to augment radiation in the desired direction. The sloping Vee beam idea from Ten Tec is also of merit for the higher bands when they are open. 100 foot legs or more, and try to have the antenna 30 feet high at the apex of the vee, where you feed it. Ten Tec model is terminated, but non terminated is easier, and then will give you bi-directional coverage, albeit one at a high angle and the other low. Still might make for interesting DX. I have used 5 wave legs on a Vee beam at 10 meters, and I can testify that is a DX burner! -Stuart K5KVH ___ 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] FS
I have a spare HW9 manual (W7FG) and a spare Hot Water handbook. Both $22. shipped conus. Thanks, John KF7OM ___ 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] EQP (Elecraft QSO Party) March 11th -- New and Improved!
Well-known contester Bob Patten, N4BP, offered to help us improve the EQP rules this year. We think he did a great job, making EQP more similar to other contests and more compatible with logging software. The new exchange includes SPC (state/province/county), which will make things more interesting, especially for those collecting states toward an Elecraft Worked-All-States award. The number of SPCs is used as a multiplier, too. The exchange also now has rig type and serial number encoded as a single number, for those using Elecraft gear (others use power level). The first digit indicates rig type (K2=2, K1=1, KX1=0), followed immediately by serial number. For example, if I were using K2 S/N of 3000 (which I probably will :) I'd send 23000. There are several other important changes related to QSO points and scoring. Please review the complete rules at: http://www.elecraft.com/Awards/eqp_2006.htm Please post any questions to the list. Please DO NOT call or e-mail Elecraft directly with EQP questions. See you on March 11th -- 73, Wayne N6KR --- 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 # 539 Lost RX Above 30M
I am trying to troubleshoot a receive problem with my K2 that is driving me crazy. I have lost the RX above 30m. On 20M I hear a low tone growl, but on 17, 15, 12, and 10 I hear only a hiss (white noise). However, signals on 160M, 80M, and 40M sound great, but signals on 30M sound weak. Any ideas where to start? Mark Saunders, KJ7BS Glendale, AZ ___ 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] Drift-K1
I have been reading these messages about the drift and or change of frequency when you move the K1. So, I just turned my K1 on for a few minutes and it is just as solid as a rock. I turned it upside down and moved it around but no change in frequency. I figure I should be happy about that!! Paul Gates, KD3JF Elecraft Kits: K1 #0231 KX1 #1186 XG1: Signal Generator - Original Message From: Mike Morrow <[EMAIL PROTECTED]> To: Elecraft Discussion List Sent: Thursday, February 23, 2006 6:41:46 PM Subject: RE: [Elecraft] Drift-K1 >My K1 is very sensitive to placement. If I pick it up or turn it upside >down, I can hear it shift up or down in frequency. Anything that squeezes or otherwise distorts the K1 bottom cover plate (such as when the case is grabbed during repositioning) will cause a small frequency shift (I see well below 100 Hz), due to the change of metal bottom cover plate position near the LC VFO circuitry on the RF PCB. The frequency returns to original when the pressure is released on the bottom cover. 73, Mike / KK5F ___ 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
Re: [Elecraft] Drift-K1
Hi If I remember right that 1/2 inch rubber with the sticky tape on it is used as a spacer for the LCD display. You are supposed to stick it on the pc board under the display and then stick the display to it and then solder the pins. I have not built a K1 lately (although I have built several) so with the new backlight this may not be the way it is mounted now. Don Brown KD5NDB - Original Message - From: "Tom Althoff" <[EMAIL PROTECTED]> To: "Elecraft Discussion List" Sent: Thursday, February 23, 2006 6:10 PM Subject: Re: [Elecraft] Drift-K1 > Mike... That reminds me. I noticed that too. Whenever I picked up the > K1 > and sqeezed the bottom it would shift maybe even more than 100Hz. > > There was a small double sided sticky tape covered hard rubber piece in my > packing material. I never saw what it was for in the instructions or if > it > even belonged in the K1 kit or not. > > But I exposed one side of the sticky tape and pressed it onto the bottom > cover below the VFO section. Now when I sqeeze the distance between the > bottom cover and the PC board doesn't change much at all and the freq > shift > is reduced dramatically. > > I just mention that in case others find a 1/2" black square with sticky > tape > on it in their K1 kits and would like to put it to good use. > > Tom K2TA > > - Original Message - > From: "Mike Morrow" <[EMAIL PROTECTED]> > To: "Elecraft Discussion List" > Sent: Thursday, February 23, 2006 6:41 PM > Subject: RE: [Elecraft] Drift-K1 > > > > >My K1 is very sensitive to placement. If I pick it up or turn it > > >upside > > >down, I can hear it shift up or down in frequency. > > > > Anything that squeezes or otherwise distorts the K1 bottom cover plate > (such as when the case is grabbed during repositioning) will cause a small > frequency shift (I see well below 100 Hz), due to the change of metal > bottom > cover plate position near the LC VFO circuitry on the RF PCB. The > frequency > returns to original when the pressure is released on the bottom cover. > > > > 73, > > Mike / KK5F > > ___ > > 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
Re: [Elecraft] Drift-K1
Mike... That reminds me. I noticed that too. Whenever I picked up the K1 and sqeezed the bottom it would shift maybe even more than 100Hz. There was a small double sided sticky tape covered hard rubber piece in my packing material. I never saw what it was for in the instructions or if it even belonged in the K1 kit or not. But I exposed one side of the sticky tape and pressed it onto the bottom cover below the VFO section. Now when I sqeeze the distance between the bottom cover and the PC board doesn't change much at all and the freq shift is reduced dramatically. I just mention that in case others find a 1/2" black square with sticky tape on it in their K1 kits and would like to put it to good use. Tom K2TA - Original Message - From: "Mike Morrow" <[EMAIL PROTECTED]> To: "Elecraft Discussion List" Sent: Thursday, February 23, 2006 6:41 PM Subject: RE: [Elecraft] Drift-K1 > >My K1 is very sensitive to placement. If I pick it up or turn it upside > >down, I can hear it shift up or down in frequency. > > Anything that squeezes or otherwise distorts the K1 bottom cover plate (such as when the case is grabbed during repositioning) will cause a small frequency shift (I see well below 100 Hz), due to the change of metal bottom cover plate position near the LC VFO circuitry on the RF PCB. The frequency returns to original when the pressure is released on the bottom cover. > > 73, > Mike / KK5F > ___ > 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] Praise for Amateur Radio
The following is from the CQ-News reflector: Thanks to Rich Moseson, W2VU! From the CQ Newsroom… The White House today released its review of the federal response to Hurricane Katrina, which, according to a statement, "identifies the systemic problems in Federal emergency preparedness and response revealed by Hurricane Katrina - and the best solutions to address them." The report included 17 lessons the Executive Branch learned after reviewing and analyzing the response to Katrina; made 125 specific recommendations to the President, and identified 11 critical actions to be completed before the first day of the 2006 hurricane season. The report also included a section titled, "What Went Right" in the Katrina response, which singled out amateur radio operators for particular praise: *"Other organizations worked tirelessly to assist emergency responders that, due to the storm, did not have the equipment and means to effectively carry out their duties. Amateur Radio Operators from both the Amateur Radio Emergency Service and the American Radio Relay League, monitored distress calls and rerouted emergency requests for assistance throughout the U.S. until messages were received by emergency response personnel. A distress call made from a cell phone on a rooftop in New Orleans to Baton Rouge was relayed, via ham radio, from Louisiana to Oregon, then Utah, and finally back to emergency personnel in Louisiana, who rescued the 15 stranded victims. Ham radio operators voluntarily manned the amateur radio stations at sites such as the National Hurricane Center, Hurricane Watch Net, Waterway Net, Skywarn and the Salvation Army Team Emergency Radio Network." * Finally, the report identified three immediate priorities: 1) Implementing a comprehensive National Preparedness System "to make certain that we have a fully national system that ensures unity of effort in preparing for and responding to natural and man-made disasters;" 2) Creating a "Culture of Preparedness" that "emphasizes that the entire Nation - at all levels of government, the private sector, communities, and individual citizens - shares common goals and responsibilities for homeland security;" and 3) Implement corrective actions "to ensure we do not repeat the problems encountered during Hurricane Katrina." A White House fact sheet summarizing the report is available online at <http://www.whitehouse.gov/news/releases/2006/02/20060223.html>. (Tnx CQ Public Service Editor Bob Josuweit, WA3PZO) The full report is also available online at <http://www.whitehouse.gov/reports/katrina-lessons-learned/>. ___ 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] Drift-K1
>My K1 is very sensitive to placement. If I pick it up or turn it upside >down, I can hear it shift up or down in frequency. Anything that squeezes or otherwise distorts the K1 bottom cover plate (such as when the case is grabbed during repositioning) will cause a small frequency shift (I see well below 100 Hz), due to the change of metal bottom cover plate position near the LC VFO circuitry on the RF PCB. The frequency returns to original when the pressure is released on the bottom cover. 73, Mike / KK5F ___ 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 v. K1
Actually, I am quite happy with my K1 tuning. It is the one area where I like the K1 better than the K2. I like the smooth, analog tuning of the K1. I replaced the original multiturn pot with the metal shaft one that Don Brown recommended. The tuning is the same, though. It just gives the tuning knob a nicer feel without the wobble. I would like the K2 better if it had a one speed analog VFO, thus my comment about building a VFO to use with the K2. Rick - K7MW - Original Message - From: "Ron D'Eau Claire" <[EMAIL PROTECTED]> To: "'Rick Dettinger'" <[EMAIL PROTECTED]>; Sent: Thursday, February 23, 2006 1:01 PM Subject: RE: [Elecraft] K2 v. K1 I assume you are saying that you'd like to have a smoother VFO for the local oscillator in your K1! The K2 does NOT use a "multiturn pot" for the VFO. A K1 does. The K1 is a totally different rig. The K2 uses a high-quality optical encoder for the main tuning. Ron AC7AC -Original Message- Ron, AC7AC, said: The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity . I say: When I tune my K2 past a signal, I can hear the steps. I also sometimes think I can hear steps when I tune my K1 thru a signal. I assumed that this is due to the nature of the multiturn pot. I think it is wire wound and that the wiper cuts the wire turns suddenly. It could also be due to jerky tuning , in spite of efforts to the contrary. It is very subtle, unlike the K2. Give me a smooth PTO with the K2 signal path. My long term idea is to build a stable analog VFO, using my Sierra band modules for premixing, to drive my K2.Rick - K7MW ___ ___ 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] xv222
On Thu, 23 Feb 2006 15:35:04 -0600, "Ron McMurray" <[EMAIL PROTECTED]> wrote: >align part 1, voltage at tp1 no reading , voltage at q1 an q2 ok . have 6.75 >on one side of c18 0 on other side.any suggestions >ron , kc0tdj The other side of C18 will require an RF probe to measure a voltage. Diode D2 acts as an RF Detector allowing the 1.0 to 1.5 volts to be measured at TP1. The voltages on Q1 and Q2 indicated that JP-9 is properly connected, so all you have to do is determine if the local oscillator is actually working. A 'scope would serve you well, lacking that, the RF probe might also provide a clue. On my XV144, I read 0VDC on the junction of C18 and D2 when using only a DMM; using the RF Probe, I read 0.66 VDC. The RF Probe measures 0.11VDC on the junction of C15 and Q2 and 4.0VDC on pin 4 of T1. Hope this helps. ___ 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] Power Supply Lead
Stephen W. Kercel wrote: Elecrafters: I have a prefabricated (West Mountain) power lead made of zip cord consisting of No 10 stranded cables. It is 6 feet long and has factory installed Anderson power poles on one end and factory installed 1/4 inch ring connectors on the other. Is this cable heavy enough to connect my power supply to a K2/100? Yes. 6 feet of no. 10 should have a resistance of 0.007 ohms, so at 20 amps the voltage drop will be 0.14 volt. As far as heat dissipation, no. 10 is spec'd for use in cables at up to 33 amps. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] xv222
clarify earlier post have 0 volts at tp1. have6.75 on osc side of c18 0 volts on test point side ron , kc0tdj ___ 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] Power Supply Lead
Elecrafters: I have a prefabricated (West Mountain) power lead made of zip cord consisting of No 10 stranded cables. It is 6 feet long and has factory installed Anderson power poles on one end and factory installed 1/4 inch ring connectors on the other. Is this cable heavy enough to connect my power supply to a K2/100? 73, Steve AA4AK K2 # 5383 (almost in hand) ___ 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 v. K1
I stand corrected! While the K2's local oscillator moves in an analogue fashion, the encoder steps under the control of the optical encoder according to the tuning rate setting. The minimum tuning rate is 10 Hz. And, as Stephanie (VA3UXB) observed, if one chooses a larger tuning rate, the step rate moves up with it. Even though the PLL's reference oscillator is tuned by an analogue voltage, that voltage is developed in the digital circuits that moves it in step increments. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Stirling Sent: Thursday, February 23, 2006 1:46 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 v. K1 On Thursday 23 February 2006 16:24, Stephanie Maks wrote: > When I have the K2 set for the 10 Hz tuning it sounds pretty smooth > to me, but if I have it set for the 50 Hz tuning (as I usually do) I > can very clearly hear the steps as I tune up or down past a CW signal. My K2 sounds continuous at 10 Hz only when tuning quickly. I can hear the steps easily on moving the knob slightly to a frequency 10 Hz higher or lower. 10 Hz with a BFO frequency of 600 Hz isn't as wide as a semitone, but it's an obvious step to me. Ian, G4ICV, AB2GR, K2 #4962 -- _ ___ 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] xv222
Try adjusting L4A while monitoring the voltage at TP1. Sometimes the oscillator is balky if the inductor is set at the wrong value. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron McMurray Sent: Thursday, February 23, 2006 1:35 PM To: elecraft post Subject: [Elecraft] xv222 align part 1, voltage at tp1 no reading , voltage at q1 an q2 ok . have 6.75 on one side of c18 0 on other side.any suggestions ron , kc0tdj ___ E ___ 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 v. K1
On Thursday 23 February 2006 16:24, Stephanie Maks wrote: > When I have the K2 set for the 10 Hz tuning it sounds pretty smooth > to me, but if I have it set for the 50 Hz tuning (as I usually do) I > can very clearly hear the steps as I tune up or down past a CW signal. My K2 sounds continuous at 10 Hz only when tuning quickly. I can hear the steps easily on moving the knob slightly to a frequency 10 Hz higher or lower. 10 Hz with a BFO frequency of 600 Hz isn't as wide as a semitone, but it's an obvious step to me. Ian, G4ICV, AB2GR, K2 #4962 -- ___ 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] xv222
align part 1, voltage at tp1 no reading , voltage at q1 an q2 ok . have 6.75 on one side of c18 0 on other side.any suggestions ron , kc0tdj ___ 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 v. K1
When I have the K2 set for the 10 Hz tuning it sounds pretty smooth to me, but if I have it set for the 50 Hz tuning (as I usually do) I can very clearly hear the steps as I tune up or down past a CW signal. I've also heard that on my K1; with very narrow signals and while tuning very, very slowly, you can sort of hear the wiper moving. The tone steps up or down. I know they're totally different rigs and tuning methods, but the resultant sound can be similar. 73 de Stephanie va3uxb K2#5311 - K1#2132 On 23-Feb-06, at 16.01 .51, Ron D'Eau Claire wrote: I assume you are saying that you'd like to have a smoother VFO for the local oscillator in your K1! The K2 does NOT use a "multiturn pot" for the VFO. A K1 does. The K1 is a totally different rig. The K2 uses a high-quality optical encoder for the main tuning. Ron AC7AC I say: When I tune my K2 past a signal, I can hear the steps. ___ 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 v. K1
On Thu, 23 Feb 2006, Rick Dettinger wrote: Ron, AC7AC, said: The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity . I say: When I tune my K2 past a signal, I can hear the steps. I also sometimes think I can hear steps when I tune my K1 thru a signal. I assumed that this is due to the nature of the multiturn pot. I think it is wire wound and that the wiper cuts the wire turns suddenly. It could also be due to jerky tuning , in spite of efforts to the contrary. It is very subtle, unlike the K2. Give me a smooth PTO with the K2 signal path. My long term idea is to build a stable analog VFO, using my Sierra band modules for premixing, to drive my K2.Rick - K7MW I thought you were going to talk about the problem that occurs when RFC15 is open. Then you can REALLY hear the steps. Mine went "bloop bloop bloop" at would lose and regain lock with each step. -- Hisashi T Fujinaka - [EMAIL PROTECTED] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ___ 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] Drift-K1
It is sensitive to electromagnetic fields (speaker, rotor control, and PS) if they are closer than about a foot or so. So is the K2. But mine isn't sensitive to orientation. Maybe orientation puts it closer to an em field on your operating desk. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Darwin, Keith Sent: Thursday, February 23, 2006 1:04 PM To: Elecraft Discussion List Subject: RE: [Elecraft] Drift-K1 My K1 is very sensitive to placement. If I pick it up or turn it upside down, I can hear it shift up or down in frequency. If I move a speaker near the rig (or a PS) it moves a lot. If I just leave it alone it stays right on frequency. Does this sound like normal behavior? - Keith KD1E - ___ 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
RE: [Elecraft] Drift-K1
My K1 is very sensitive to placement. If I pick it up or turn it upside down, I can hear it shift up or down in frequency. If I move a speaker near the rig (or a PS) it moves a lot. If I just leave it alone it stays right on frequency. Does this sound like normal behavior? - Keith KD1E - ___ 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 v. K1
I assume you are saying that you'd like to have a smoother VFO for the local oscillator in your K1! The K2 does NOT use a "multiturn pot" for the VFO. A K1 does. The K1 is a totally different rig. The K2 uses a high-quality optical encoder for the main tuning. Ron AC7AC -Original Message- Ron, AC7AC, said: The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity . I say: When I tune my K2 past a signal, I can hear the steps. I also sometimes think I can hear steps when I tune my K1 thru a signal. I assumed that this is due to the nature of the multiturn pot. I think it is wire wound and that the wiper cuts the wire turns suddenly. It could also be due to jerky tuning , in spite of efforts to the contrary. It is very subtle, unlike the K2. Give me a smooth PTO with the K2 signal path. My long term idea is to build a stable analog VFO, using my Sierra band modules for premixing, to drive my K2.Rick - K7MW ___ ___ 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] PLL es BFO range test
I didn't get much of a response to my first request of help so I thought I'd try again. I have spent most of the day checking and re-checking and am not making any headway. I am building a K2 and everything has been going fine until the "PLL Reference Oscillator Range test". Pressing the Band+ switch does not change the PLL reference display (12113). The Band- switch changes the reference display to 12067. Pressing the Band + switch again displays the PLL reference freq. of 12113. I looked for bad solder connections, incorrect or missing components and could not find any. Pressing on with the alignment process I found that the "BFO range test" gave similar results. In this case neither the band+ nor the band- displayed the BFO range. The display stayed at 4912 khz. Any Ideas? Dave N1IX ___ 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] Drift-K1
John wrote: >I have had my K1 #1734 in use occaisionally since I built it. >The other day I noticed quite abit of drift,even after warm up, >like 1-2 khz. over an hour or so. That sounds unusually high unless the ambient temperature around the K1 was changing significantly or the DC voltage was swinging very low. I'd want to check how stable the output voltage the 6v regulator RF-U6 was. I often turn on my K1 and set it for 60.0 in the LCD display. It doesn't matter which band, because the frequency display system senses and counts the LC VFO only, and senses neither of the two crystal oscillators that combine with the LC VFO to set the frequency of operation. I usually find several hours later that the display shows about 200 Hz lower, or 59.8. After the initial warm up, I can reset the K1 display back to 60.0 and find it still indicating 60.0 twenty hours later. I think that's very good for an LC VFO, so I have no complaints about K1 stability. 73, Mike / KK5F K1 #175 ___ 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 v. K1
Ron, AC7AC, said: The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity . I say: When I tune my K2 past a signal, I can hear the steps. I also sometimes think I can hear steps when I tune my K1 thru a signal. I assumed that this is due to the nature of the multiturn pot. I think it is wire wound and that the wiper cuts the wire turns suddenly. It could also be due to jerky tuning , in spite of efforts to the contrary. It is very subtle, unlike the K2. Give me a smooth PTO with the K2 signal path. My long term idea is to build a stable analog VFO, using my Sierra band modules for premixing, to drive my K2.Rick - K7MW ___ 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] K2/100 in QRP mode?
At least two ways. One unplug the power connector to the KPA100 and use the old round power connector on the K@ it will auto detect and go into QRP mode. Two, go into the secondary menu and turn off the KPA100. Of course you can also remove the KPA100 and install the QRP top but that is really not necessary un less you want to use the battery option then you would neet to either swap the tope or the ultimate is to build the KPA100 into an EC2 box then you can just unplug the K2 and go. You can also have the KAT100 live in the EC-2 box with the KPA100 Don Brown KD5NDB - Original Message - From: "Darwin, Keith" <[EMAIL PROTECTED]> To: "Elecraft Discussion List" Sent: Thursday, February 23, 2006 10:55 AM Subject: [Elecraft] K2/100 in QRP mode? What does it take to make a K2/100 run QRP? - Turn down the power? (fine for CW what about SSB?) - Unplug the KPA100 and put the old top back on? - Keith KD1E - ___ 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
Thanks all! - RE: [Elecraft] K2 vs. K1 - Info please.
Wow guys, Thanks so much for all the info. You've answered my Q's in style and I now have all the info I need. K2/100 sounds like a near perfect rig for my needs, time to get one. The Omni V.9 is going up for sale. We have a ham fest once a year and it is this weekend. I was going as a buyer but now it looks like I'll be up there trying (once again) to both buy and sell at the same time. Failing that, the rig will be on e-bay. Then the hunt for a good builder or a good pre-owned K2/100 will begin. Wish me luck! 73 all! - Keith KD1E - ___ 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] 4O3ANT
Sorry Chris, 4O3ANT is YU for DXCC. It's a special call participating in the WAP program. In fact, most if not all of the suffix "ANT" stations are located in the country of the prefix. That being the case, VP8DJK, R1ANN and DT8A have all been active lately on 80 thru 20M CW. 73, Julius n2wn ___ 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 vs. K1 - Info please.
Keith KD1E asked: 1. How do the IF filters in the K2 compare to the audio filters in the K1. I assume they provide more selectivity and greater stop-band rejection. I also assume the multiple IF stage filters in my Omni will provide even greater selectivity. 2. How does the RX noise level compare between the K2 and K1. My K1 is a quieter rig than the more complex Omni V that it sits on. It is just nicer to listen to. If the K2 is similar to the K1 it would be a very sweet rig. 3. AGC - Does the K2 have multiple AGC rates (fast & slow?)? 4. Tuning rates. K1 tunes very quickly. Similar to analog rigs from the 80's. I assume the K2 tunes slower, yes? 5. Knob wobbliness. The knobs on my K1 are just a bit wobbly. The pots are tight on the PCB but the shafts have some play. Is this the case with the K2? I assume it uses the same pots and has the same feel. 6. SWR protection of the finals. Are the finals SWR protected in some way? Keith, I don't own a K1 so I can't speak to the K1-specific issues. The K2 is a completely different rig from the K1, mechanically and electrically. Regarding the AGC, the K1 uses audio-derived AGC while the K2 has an I.F.-derived AGC. The I.F.-derived AGC is inherently faster to take hold than audio AGC, producing smoother action on the "attack". That's a basic limitation of any audio-derived AGC. It takes several cycles of rectified signal to build up the voltage needed to control the gain. Several cycles of signal happen much, much more quickly at the intermediate frequency than they do at an audio frequency, so the control voltage is available much more quickly in an I.F-derived system. Yes, the K2's AGC has a fast and slow mode. And it has an "off" mode, which I use a lot when tuning around. Although I will say that for this "AGC-hater" I find the K2's AGC no problem at all. I often turn AGC off because I don't want the receiver turning up the gain between signals. I prefer to hear the background stay constant as I tune with the signals standing out above it at various levels according to their strengths, rather than having everything adjusted to about the same sound level. If I want to dig for a weak signal down near or in the noise, I turn up the gain . The K2's tuning rates are variable in three steps from very fast, about 100 kHz per revolution, to about 6 kHz per revolution, and on down to about 1 kHz per revolution. The K2's tuning is controlled by an optical encoder, not a pot, so the feel is very smooth and precise. The readout is in 10 Hz steps but, thanks to a unique phase-locked loop (PLL) design used in the local oscillator, the tuning is smooth with no 'steps'. The PLL local oscillator is also very quiet electrically, avoiding the phase noise usually associated with many PLL local oscillators that shows up as excess noise indistinguishable from normal background QRN. The K2 does this by using a PLL that tunes in about 5 kHz "steps" and then varies the PLL reference oscillator's frequency to tune smoothly in between those steps. So the tuning has the true smooth feel and spectral purity of an excellent "analog" oscillator with the accuracy and stability of a good PLL. The dial reads out in 10 Hz steps. The logic design limits the absolute accuracy to about 20 or 30 Hz, although it's not unusual for the K2 display to be within 10 Hz of the actual frequency. I can't speak in any great detail about the protection circuits in the finals for either the KPA100 or the K2. I know they both withstand repeated transmits into an open load at full power setting without harm. The finals in both the basic K2 and the KPA100 are very conservatively rated, handling rather severe overloads and operating stresses without trouble. Ron AC7AC ___ 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] K2/100 in QRP mode?
Keith, KD1E asked: What does it take to make a K2/100 run QRP? - Turn down the power? (fine for CW what about SSB?) - Unplug the KPA100 and put the old top back on? -- Turn down the power. At 10 watts output the KPA100 shuts off automatically. You can also just power the K2 from the original coaxial power connector on the back. If your KPA100 is installed and operational, you'll get a message on power up that there is no KPA100 power source and the rig operates almost as it would without the KPA100 attached. And, of course, you can switch tops. That's an attractive option for those who want to haul minimum weight, or for those with a "QRP Top" equipped with the internal battery or KAT2 internal automatic antenna tuning unit. The only difference in the way the rig operates, when the KPA100 is turned off or the K2 is powered from the coaxial power connector instead of the KPA100's high-current connector, is that the SWR bridge in the KPA always stays in the circuit. You continue to see the same SWR/power reports that you got with the KPA100 active. If I recall correctly, a bias supply in the KPA100 remains active even though the amplifier is turned off or the K2 is powered through the coaxial power plug. That means the K2 draws a few mA more of current than it would if you removed the KPA100 entirely. If you remove the KPA100, the system reverts to the RF power output circuit used by the basic K2. That's an RF voltmeter that monitors the K2 output to control the power level and which does not contain an SWR bridge. Ron AC7AC ___ 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] K2/100 in QRP mode?
What does it take to make a K2/100 run QRP? - Turn down the power? (fine for CW what about SSB?) - Unplug the KPA100 and put the old top back on? - Keith KD1E - ___ 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 CW dot problem
Dave: You have the keyer set to the automatic detect mode and it act like a straight key when you hold both paddles closed. Tap the menu key and rotate the vfo knob until you see "inp". Press and hold the menu key to edit and then tap the display key this will toggle the "adet (Auto Detect) on and off tap the display key until it says off and then tap the menu key twice to get out of the menu. You have the auto detect turned on and when it sees both the dit and dah contacts closed it changes the K2 keyer to the handkey mode. 73 Jim Younce K4ZM K2 SN: 18 ___ 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 vs. K1 - Info please.
>1. How do the IF filters in the K2 compare to the audio filters in the K1. I can't address the K2, but the variable bandpass filtering in the K1 takes place in the IF crystal filter network. The audio filtering is fixed. >5. Knob wobbliness. The knobs on my K1 are just a bit wobbly. Early K1 kits were provided with AF and RIT pots whose plastic shaft did not have much support, so there was a lot of wobble. You can solve that by installing replacements from Elecraft. The parts now being supplied (since 2002??) have significantly greater shaft support and feel much much better. I'd assume that if you bought an early used K2, it would be likely that the earlier style pots would be found on it as well. 73, Mike / KK5F ___ 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 CW dot problem
My K2 has developed a strange problem when using the keyer on CW. If I press and hold the paddle for dashes, it sends a string of dashes correctly. If I press and hold the paddle for dots, it will send only one dot, then on releasing the paddle, I hear 2 lower frequency dits and the rig switches from the current VFO to the other VFO. I removed the control board & checked the tracks from P3 pins 17&18 to the MCU, no shorts, opens or solder bridges. Looking at the schematic, it all looks very simple, just grounding pins 29 & 30 of the MCU to send code. Can anyone suggest what I should try next? -- 73, Dave G3VGR K2 #4783 ___ 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] Test
Test ___ 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 vs. K1 - Info please.
Yea, I know, we've discussed this before. I'm not going to ask a general question because it is too easy to get into an apples to oranges comparison. But I've had the K1 for a bit now and have become familiar with it's performance and operation. Now I have a better basis for understanding the K2. So on to the questions. 1. How do the IF filters in the K2 compare to the audio filters in the K1. I assume they provide more selectivity and greater stop-band rejection. I also assume the multiple IF stage filters in my Omni will provide even greater selectivity. 2. How does the RX noise level compare between the K2 and K1. My K1 is a quieter rig than the more complex Omni V that it sits on. It is just nicer to listen to. If the K2 is similar to the K1 it would be a very sweet rig. 3. AGC - Does the K2 have multiple AGC rates (fast & slow?)? 4. Tuning rates. K1 tunes very quickly. Similar to analog rigs from the 80's. I assume the K2 tunes slower, yes? 5. Knob wobbliness. The knobs on my K1 are just a bit wobbly. The pots are tight on the PCB but the shafts have some play. Is this the case with the K2? I assume it uses the same pots and has the same feel. 6. SWR protection of the finals. Are the finals SWR protected in some way? What I'm thinking right now is I'll sell the Omni V and the K1 and buy a K2/100 with SSB. I'm not a builder so I'd be looking for a very late SN used rig or may just buy new and have a pro build it for me. Hmmm, lots to think about ... think think think ... - Keith KD1E - ___ 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: K2 #5341
On 23 Feb 2006 at 4:01, Chris: > > K2 #5341 is up and running Have just worked 4o3ant for a new DXCC in > antarctica. it is working great .now what should I add to it the auto > atu the dsp unit ? > Don't get too excited. The stations on this week with the suffix ANT are indeed celebrating Antarctica operations but are operating from their home countries. 4O3ANT is in Yugoslavia... (he was 599++ in G land the other day) 73 Dave G3YMC http://www.davesergeant.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
