[Elecraft] [K3] K3, P3E, Transverters (Satellites)
Has anyone thought about a K3-based solution for P3E or the American Eagle? How would you get to 13cms / 23cms with the K3? Simon Brown, HB9DRV ___ 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] Elcraft K2 6216, Problem with Voltage Sensor on Control Board
Richard, U3B should be easy to test. The voltage at pin 7 should always be the same as that at pin 5. Set the P7 jumper to the EXT position and use the internal voltmeter probe while checking. Connect the probe to the 5 volt regulator (U5) output pin and monitor the voltage at U3 pin 5 with your DMM - the DMM should read very close to 1 volt if the voltage divider (R9 and R10) resistors are correct. Whatever voltage you have at U3 pin 5 should also be found at U3 pin 7 if U3 is good. Check again connecting the probe to the 8 volt regulator (U4) output pin - this time the voltages at U3 pins 5 and 7 should be close to 1.5 volts. If the voltages at U3 pins 5 and 7 do not match, U3 is bad, but if they do match, look for the problem somewhere else - like R9 or R10 - check the soldering of these resistors carefully as well as the soldering of U3. 73, Don W3FPR Dianne Richard Gething wrote: When I first switched the unit on to test it the Voltmeter and Current display were working fine. However after I built tested the Voltmeter Probe, the Voltmeter display read 23.0, and no matter what voltage I applied, internally or through the probe, the reading did not change. The current readings were fine and I was able to complete the all the tests in Part 1. I have carried out resistance tests, and all the components and the circuit board look fine, so I feel that the Voltage Sensor IC U3 may be the problem. I am hoping the fault would not have got to the microprocessor U6, as all else appears OK. Before I remove U3 and request a replacement, has any one any thoughts? ___ 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] K3, P3E, Transverters (Satellites)
How would you get to 13cms / 23cms with the K3? For L-band uplink, Down East Microwave URL:http://www.downeastmicrowave.com has several options available, including some recent products that work directly from a 28 MHz IF. They also offer S-band transverters with a 2m IF. DB6NT-designed transverters are available from http://www.ssbusa.com or URL:http://www.kuhne-electronic.de/english/transverter.htm . These are all low-volume producers, so I suspect they would entertain slight modifications of their designs for the proposed frequencies for P3E and Eagle, as well as the possibility of using 6m for an IF to eliminate the need to an intervening 144 MHz transverter. 73, Lyle KK7P ___ 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 Sory for the banwide. 73, Ruchan, TA2AH ___ 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] US Postal Service Express Mail to UK - rubbish!
Recently I ordered an item from the USA and specified USPS International Express Mail, I'm sure I've used that service in the past for Elecraft bits and kits. One memorable occasion resulted in a delivery four days after placing the order. Sadly, it seems the system has deteriorated as follows (from USPS tracking): Attempted Delivery Abroad, October 27, 2007, 9:25 am, GREAT BRITAIN Out of Foreign Customs, October 26, 2007, 5:11 am, GREAT BRITAIN Into Foreign Customs, October 23, 2007, 5:33 pm, GREAT BRITAIN Arrived Abroad, October 23, 2007, 5:13 pm, GREAT BRITAIN International Dispatch, October 18, 2007, 2:18 pm, O'HARE APT/CHICAGO Processed, October 18, 2007, 11:49 am, CHICAGO, IL 60666 Processed, October 17, 2007, 6:35 pm, DETROIT, MI 48242 Electronic Shipping Info Received, October 17, 2007 I don't know what attempted delivery abroad on Saturday 27th means, no attempt to deliver here and nothing so far on Monday by 1720 hours local time. I might have to alter my K3 order to UPS delivery at this rate! 73 Dave G4AON ___ 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] K3, P3E, Transverters (Satellites)
On 10/29/07, Lyle Johnson [EMAIL PROTECTED] wrote: These are all low-volume producers, so I suspect they would entertain slight modifications of their designs for the proposed frequencies for P3E and Eagle, as well as the possibility of using 6m for an IF to eliminate the need to an intervening 144 MHz transverter. Maybe wait for future K3 VHF/UHF modules? Perhaps a KM1 weak signals oriented (CW, SSB) DSP based VHF to microwave transceiver? Maybe vaguely similar to Bob W7PUA's DSP-10 2m SDR/DSP transceiver. :-) -Michael Taylor, VE3TIX ___ 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] US Postal Service Express Mail to UK - rubbish!
Dave, Our postal system has undergone some signifigant changes recently, with many rate increases, lots of size-related rate changes, etc. I do considerable eBay selling and all the overseas rates have changed along with allowable package sizes, etc. I suspect the shipping folks at Elecraft are going through a learning process, too. Just an observation ... 73! Ken Kopp - K0PP K2 S/N 5665, K3 ___ 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] K3, P3E, Transverters (Satellites)
Maybe wait for future K3 VHF/UHF modules? Perhaps a KM1 weak signals oriented (CW, SSB) DSP based VHF to microwave transceiver? Maybe vaguely similar to Bob W7PUA's DSP-10 2m SDR/DSP transceiver. :-) One of the problems with gear for 900 MHz and higher is that you really want the RF deck mounted at the antenna, if possible. A weatherproof transverter, if you will. Feedlines affordable to most of us have too much loss. AN alternative is to remote a preamp and power amp, and let the feedline loss attenuate the Tx output of the shack-based exciter to the drive level needed by the power amp at the antenna. With satellites, you often have a situation where you only want/need a Tx or an Rx converter. L band for satellites in the Amateur Service are restricted to 1268-1270 MHz, uplink (transmit) only. Until now, S-band (2.4 GHz) has been downlink (receive) only. So traditional transverters may not be the most cost effective solution. For VHF/UHF this is not the case, where 2m and 70cm are used for both up- and downlink and feedline losses are manageable (even if the antennas aren't!). Another consideration is full duplex operation for satellites, which suggests you want different IFs for Tx and Rx. Finally, you probably want VHF IFs for microwave operation for image rejection if nothing else. 73, Lyle KK7P ___ 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] Question: Over-voltage protection (OVP) for K2, K1
Hello, As many of you know, I've been pretty active building and repairing Elecrafts ... ... And recently I had a K2 come in after having a collision with a runaway power supply. Extensive damage. Most modern supplies have a protection circuit that drops a short across the supply if the voltage goes over a set limit, but this was not the case here. A simple external crowbar probably would have saved this K2 from disaster. So I built a simple OVP that can be inserted inline with the K2's power. See http://wilcoxengineering.com/OVP/ for some pictures of the project. Question: Is a product like this something that folks might find useful if I were to make the parts (or a mini-kit) available? Let me know! Many thanks, Alan Alan D. Wilcox, W3DVX 570-321-1516 [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] http://WilcoxEngineering.com Williamsport, PA 17701 ___ 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] US Postal Service Express Mail to UK - rubbish!
Ken The package in question isn't from Elecraft. The problem lies with the USPS Express Mail International service which states on their web site (and I quote): Speed 3 - 5 days. The package has been 12 calendar days, or 8 Monday to Friday working days so far. There will be tax to pay on the package so I suspect there may be a letter on the door mat asking me to phone and pay the tax before they will deliver, adding further delay to an already tedious process. Dave, G4AON K3 on order... Ken Kopp wrote: Our postal system has undergone some signifigant changes recently, with many rate increases, lots of size-related rate changes, etc. I do considerable eBay selling and all the overseas rates have changed along with allowable package sizes, etc. I suspect the shipping folks at Elecraft are going through a learning process, too. Just an observation ... ___ 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] US Postal Service Express Mail to UK - rubbish!
On Mon, 29 Oct 2007 20:51:52 +, Dave G4AON wrote: The package in question isn't from Elecraft. The problem lies with the USPS Express Mail International service which states on their web site (and I quote): Speed 3 - 5 days. I suspect what they mean is 3-5 days to get it into the hands of the overseas mail system. Beyond that point they have no control over delays in foreign customs or deliveries. We send letters and printed material overseas as Global Priority Mail (7-9 days) and it always gets there on time with no customs formalities required. Perhaps this was a glitch with the BPO (or whatever its successor is called now), and not with the USPS. -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 ___ 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] Question: Over-voltage protection (OVP) for K2, K1
I'm using a linear tech LT4356CDE as shown in their application note for Demo Circuit (DC) 1018A, to do the same thing, it ends up being pretty compact. Some people may have issues getting the sense resistors however. Matt KD8DAO ___ 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] K3 Rev B manuals on Web PAge
We've now uploaded all of the Revision B Assembly manuals to the Elecraft web page for the K3 and its options. See: http://www.elecraft.com/K2_Manual_Download_Page.htm#K3 73, Eric WA6HHQ ___ 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] US Postal Service Express Mail to UK - rubbish!
Hi Dave That's pretty much exactly my experience too, about 10 days (longer in one case where it was close to a US vacation). Last time though, it sat with UK customs for 3 days! I've never tried UPS. I'm about to order some bits for my new K1, so it'll be interesting to see how long that takes. As for the K3, not ordered yet, but I have a feeling that the elecraft family here is set to grow! Got to get the XYL used to one thing at a time, and then claim I've actually had it lying around for ages collecting dust at work! I'm sure she's onto me though 73 Stephen G4SJP On 29/10/07 18:21, Dave G4AON [EMAIL PROTECTED] wrote: Recently I ordered an item from the USA and specified USPS International Express Mail, I'm sure I've used that service in the past for Elecraft bits and kits. One memorable occasion resulted in a delivery four days after placing the order. Sadly, it seems the system has deteriorated as follows (from USPS tracking): Attempted Delivery Abroad, October 27, 2007, 9:25 am, GREAT BRITAIN Out of Foreign Customs, October 26, 2007, 5:11 am, GREAT BRITAIN Into Foreign Customs, October 23, 2007, 5:33 pm, GREAT BRITAIN Arrived Abroad, October 23, 2007, 5:13 pm, GREAT BRITAIN International Dispatch, October 18, 2007, 2:18 pm, O'HARE APT/CHICAGO Processed, October 18, 2007, 11:49 am, CHICAGO, IL 60666 Processed, October 17, 2007, 6:35 pm, DETROIT, MI 48242 Electronic Shipping Info Received, October 17, 2007 I don't know what attempted delivery abroad on Saturday 27th means, no attempt to deliver here and nothing so far on Monday by 1720 hours local time. I might have to alter my K3 order to UPS delivery at this rate! 73 Dave G4AON ___ 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] US Postal Service Express Mail to UK - rubbish!
It sounds like UK Customs have their claws into it. That usually adds between 1 and 2 weeks to the delivery. If it's a parcel, you'll get a letter from Parcel Farce charging you 17.5% VAT on the commodity plus cost of carriage and, depending on its category, import duty plus £8 handling fee. If it's a small package, it'll be handled the same way by Royal Snail. I'm awaiting delivery of a $71 package that will probably cost me an additional $38. Sorry to be a potential harbinger of doom and hope it gets cleared soon. 73 DaveL G3TJP ___ 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 Rev B manuals on Web PAge
Fixed! :-) Thanks for catching this. 73, Eric WA6HHQ Ad Spaninks (PE1FTV) wrote: Dear Eric, Thanks for the update, but ... ehhh ... Some of the links got mixed up: KBPF3 Manual (pdf) refers to KAT3 KXV3 Manual (pdf) refers to MH2 ___ 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]US Postal Service Express Mail to the UK -Rubbish!
Hi, My experience has been that any delay has always been here in the UK, either Customs or ParcelForce. Bryan GM3AKF ___ 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]US Postal Service Express Mail to the UK -Rubbish!
... and my experience is that it isn't half as bad as all that. I recently ordered two new source driver boards for my Top Ten band decoders. Dave N3RD scanned the posting document and sent me a copy. It was posted in PA on Saturday 13 October, sent by US Mail and arrived in Nottingham on Wednesday 17th. It seems to me that the major delay in incoming parcel post these days is the emphasis on actually acting as a business. In the past the local postperson was required to collect any payment due, so this was hit and miss depending on whether the individual could be bothered, or whether they considered they were working for a business or a community service. Once RM realised just how much revenue they were losing they tightened up their procedures and costs, hence the system now. So you really can't fault that. I guess you get what you pay for. I also recently ordered an Ethernet to Serial adapter, for remote access to my G1000 rotor controller. It came by UPS. Whilst the service was high class in that the UPS Depot at East Midlands Airport rang me to say the item had arrived, they also stung me for an excessive handling charge as well as import duty. (Would you like to pay now, sir!) I would certainly prefer the Parcelforce £8 handling charge and an additional day or so. Chris Burbanks G3SJJ Bryan wrote: Hi, My experience has been that any delay has always been here in the UK, either Customs or ParcelForce. Bryan GM3AKF ___ 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] k3support(at)elecraft.com
K3 builders and owners, We've created* k3support(at)elecraft.com *as a general K3 support request address. (Replace the '(at)' with '@' in the address.) Please use it for any support request emails as you get your K3 up and running. It goes to our main team of people who are involved in tackling K3 issues. We've set it up so our K3 customers will get the fastest and broadest K3 support response from us as we ramp up K3 production. For all other Elecraft product support, please continue to use [EMAIL PROTECTED] and [EMAIL PROTECTED] 73, Eric WA6HHQ ___ 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] Question: Over-voltage protection (OVP) for K2, K1
That's fine for a barefoot K2, Alan, but what about the K2/100? Re Matt's comment - surely you don't need current sense resistors for an over VOLTAGE trip? Generally, the minimum component count for a brute force crowbar is 4. SCR, zener, resistor, capacitor. 73 DaveL G3TJP ___ 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] Question: Over-voltage protection (OVP) for K2, K1
Dave, If I were to do an OVP for a K2/100 ... 1. Different connectors, 2. A circuit breaker (a 20+ A supply would cause serious damage without a fuse or breaker), 3. Change OVP-12 to the OVP-24 (20A continuous, 30A intermittent), 4. Bigger case, probably metal to act as heat sink (just in case). I would expect a 20-30A supply to have protection, so the above wouldn't be necessary. HOWEVER, the supply that inspired the project to start with was just such a supply, so maybe such an OVP would be a good idea. Hmmm. Alan Alan D. Wilcox, W3DVX 570-321-1516 [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] http://WilcoxEngineering.com http://www.eham.net/reviews/detail/6768 ... for Client Comments Williamsport, PA 17701 David Lankshear wrote: That's fine for a barefoot K2, Alan, but what about the K2/100? Re Matt's comment - surely you don't need current sense resistors for an over VOLTAGE trip? Generally, the minimum component count for a brute force crowbar is 4. SCR, zener, resistor, capacitor. 73 DaveL G3TJP ___ 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] Spectrogram Question
I finally decided to test my older K1 with Spectrogram and found the BFO frequency so close to the center of the filter it wasn't worth the trouble to pull the screws from the cabinet and try to get the BFO moved closer. BUT I did notice something: when changing between the three filters the width of the plot varied very little. I would have expected to see a vastly different shape between the 800 Hz filter and the 250 Hz filter. So, do I need to take the screws out anyway? 73 de Clark KE4RQ ___ 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] K3: Reference Error in KXV3 Manual
Page 12 of this manual contains the following in two places near the bottom of the page: Error! Reference source not found I believe the reference should be to Figure 4 on page 9. -- Chuck Catledge - AE4CW ___ 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: K3: Reference Error in KXV3 Manual
Thanks Chuck. Will pass this on to the manual team for correction. It should reflect in the next revision. 73, Greg - AB7R Whidbey Island, WA K3#0009 -Original Message- From: Chuck Catledge [mailto:[EMAIL PROTECTED] Sent: Monday, October 29, 2007 8:39 PM To: elecraft@mailman.qth.net Cc: [EMAIL PROTECTED] Subject: K3: Reference Error in KXV3 Manual Page 12 of this manual contains the following in two places near the bottom of the page: Error! Reference source not found I believe the reference should be to Figure 4 on page 9. -- Chuck Catledge - AE4CW No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1098 - Release Date: 10/29/2007 9:28 AM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1098 - Release Date: 10/29/2007 9:28 AM ___ 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] KPA800 / KPA1500: status update?
I guess this is a question for Wayne and Eric. I am on the market for a linear amp and I would love to buy an Elecraft amp instead of Tokyo Hi-Power for instance. I am not in a terrible rush but I would really like to do it in the next 3 to 6 months. I was wondering if there is any progress with the KPA 800 and KPA 1500 and what is the rough estimated time of release for those amps? Any chance for one of those models to out by ... lets say April - May? Just want to know so I can make a decision what and when to buy - no sense for me to wait with the amp if the Elecraft models are not very close to turn from prototype to a real product. Thanks in advance!! 73 de Andrey AE1Z ___ 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] Alignment/Test II assistance request
Need a second opinion with some Align/Test II results. Item 1: PLL Reference OSC Range. Fref-high = 12100.5 kHz, Fref-low = 12091.0 kHz. Fdiff - 9.5 kHz. The manual says the diff. _must_ be 9.5 - 15 kHz. I'm a little low. I followed the T/S steps and checked associated components C84, C85, D19, D17, L31 X1--all are correct. Item 2: BFO, BFOhigh-freq = 4917.16 kHz, BFOlow=freq = 4912.88 kHz, Both a smidge higher than the manual spec. 4917 kHz and 4912 kHz respectively. Frequency measurements were made with the internal frequency meter, after calibrating it per the manual with a Radio Shack wide range frequency meter. Experience building K2s told me to call it good because they things were so close and press on. But I've been away from building for 2 years or so, and thought I better get a second opinion. FWIW PLL linearization worked just fine, as did Filter/BFO setup. Item 3: Adjusting L34 for best S/N ratio I could not really notice much change. L1 L2 seamed to peak OK with a Noise Generator connected to the antenna jack. But with a few feet of wire connected to the ANT jack I could _NOT_ receive any signals on 40m. Is 40 that dead? It might be my QTH, river valley surrounded by low mountains. I'll have to get access to an XG1 or XG2 and do more trouble shooting. Anyone have either they would like to loan out or sell? Back in the day when I had a decent bench and more test equipment things were a lot easier. Now, after downsizing QTH and test equipment, doing this stuff on the kitchen table presents some challenges. :-) -- Rod Ai7NN, --the ham formally known as N0RC-- ___ 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
