Re: [Elecraft] K2 SSB Filter (OP1) question ...
I just wanted to post a general thankyou note to all the people who sent helpful hints to try and resolve the problem I was having with the SSB filter in my K2. It turns out that I'd installed D4 and D5 on the SSB board backwards (doh!). Anyway, lots of useful tips pointed me quickly in that direction - so now the problem is resolved. (:-) Many thanks all! Ken, G0RVH -- Ken Dailey ___ 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 Linear Amp Driving Power
Roy, A watt is a watt as far as the amp is concerned, and it could care less whether the driving generator is a K2/100 or whatever brand transceiver. Put your Bird wattmeter in-line between the transceiver and the amp, then try driving to 1000 watts with the K2/100 and another transceiver - observe the power on the Bird as well as the power indicated by the driving transceiver in both cases. If you do discover that the power indicated on the Bird is the same for both transxeivers, then the wattmeter in the KPA100 may need to be calibrated better. But if there really is a difference in drive required from the K2/100 vs. other transceivers, you should drag out a 'scope and do some real investigation of the waveform purity from all your transceivers - you will likely be looking for a parasitic from one of them. Don't overlook RF feedback problems. Ideally you should operate the amp into a dummy load for these tests to remove the RF feedback possibility from the situation. 73, Don W3FPR -Original Message- Twelve watts output from my K2/100 on 75 meters will drive my Alpha 99 amp to 1000 watts. My other two transceivers have to put out approx 35 watts to get 1000 watts out (which is normal driving power for this amp to put out 1000 watts). I am using the same amp input coax on all transceivers which is approx 6 feet in length. The output of the linear goes to a AT4K tuner which tunes the coax feed line to 1:1. All components are properly grounded. I receive good audio reports with the amplified K2/100, so I don't think stray RF or a parasitic oscillation is causing this. I can increase the length of the amp input coax, but I don't know what else I can do to normalize the drive power. The amp has 50 ohm passive input. The power displayed on the K2/100 is normal at all power levels and on all bands 160-10 meters and is verified with both the Bird 43 wattmeter and the Array Solutions Power Master meter. Any ideas anyone? Roy Morris W4WFB ___ 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 Linear Amp Driving Power
Roy: I assume you are probably making these measurements/observations on CW, in which case I can't add to what has already been suggested. However, if you are testing in SSB mode, there is another possibility. Some K2/100's have trouble keeping the power down on SSB, especially on 80m. The ALC action is just not aggressive enough in these unitsthey probably have a bit higher gain through the transmit chain than most, resulting from particularly hot transistors, etc. This is particularly obvious near the 10 W crossover between the QRP final and the KPA100. If I recall correctly, mine gives about twice the output at the 11 watt setting as it does at the 10 watt setting, even after a mod to make the ALC more aggressive (which is adequate to stop more serious over-power/distortion problems at higher power settings). To check look at the K2 output power display; if you see 30 watts peak on SSB on the display then you may actually be getting around 30 watts rather than the 12 watts you have it set for. This problem does not affect CW however; the actual/displayed power output should be very close to the requested value. 73, Steve VE3SMA __ 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] KPA100 Metering?
I saw a reference to a wattmeter in the KPA100? Does the K2's KPA100 option, include a wattmeter, beyond what metering is now present in my K2's relative reading LED multi-segment indicator? What comes with the KPA100, in this area? If I bought the KPA100 option, for my K2 - could I get a accurate indication if I'm putting out 10watts, 38 watts or 100 watts? Or if the SWR presented to the KPA100 is 1:1 or 11.6:1? I'm really trying to decide whether to bite on the KPA100 higher-power K2 option. Thanks, Fred N3CSY shores of St. Lawrence ... __ 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] KPA100 Metering?
Fred N3CSY asked: I saw a reference to a wattmeter in the KPA100? Does the K2's KPA100 option, include a wattmeter, beyond what metering is now present in my K2's relative reading LED multi-segment indicator? What comes with the KPA100, in this area? If I bought the KPA100 option, for my K2 - could I get a accurate indication if I'm putting out 10watts, 38 watts or 100 watts? Or if the SWR presented to the KPA100 is 1:1 or 11.6:1? I'm really trying to decide whether to bite on the KPA100 higher-power K2 option. -- Yes, the KPA100 includes a built-in directional coupler that monitors the SWR at the output of the K2 instead of the simple RF Voltmeter circuit the QRP K2 uses. The output of the directional coupler provides the ALC feedback signal to keep the power level at the requested level set by the POWER control. Also, in TUNE the K2 LCD displays the SWR at the output. In TUNE the LCD will have a display something like 95 1.2 --1 indicating 95 watts with an SWR of 1.2:1. The power is displayed using two digits, so it's to the nearest watt above 10 watts and to the nearest 0.1 watt below 10 watts. It works across the whole power range of the K2 whether the KPA100 is enabled or not, as long as it's installed in the K2. Accuracy? I haven't measured it closely. It depends upon how it's calibrated. Mine is certainly within 10%, which I consider *great* for any RF power meter. 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] 99 TO GO
My first ever DX: HA7UG, Laci near Budapest on ten watts to a dipole on 30M! Life's too short for anything but QRP John AB8WH ___ 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] LP-100 wattmeter kit update
I have been delivering LP-100 kits for a couple weeks now, and should wrap up deliveries of the first production run in the next 2 weeks. I am gathering pre-orders for the second run now. For more information on this nifty kit visit my website, www.telepostinc.com, and click on the LP-100 link. Also check out the link on the LP-100 page to the Gallery, with pictures of assembled LP-100s along with comments from the builders. There are also links in the left-hand sidebar of all my web pages to Downloads and LP-100 Update where the LP-100 windows control software and flash upgradeable firmware reside. I have also created an LP-100 support group, which can be accessed at http://groups.yahoo.com/group/LP-100/ 73, Larry N8LP ___ 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] YX0LIX K2/100 Photos
Visit the website of the recent Aves Island DXpedition (YX0A/YX0LIX), click the PHOTOS AVES 2006 button, and you'll see a few photos of K2/100's in DXpedition mode. They're on the third page of photos. It looks like the K2's are resting atop switching power supplies--that's a good advertisement for whatever power supplies they were using (SEC 1223's?). 73, John, N7ON K2/100 #5023 ___ 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] YX0A/YX0LIX URL
Forgot to post the YX0A/YX0LIX K2/100 photos URL: http://www.yv0.info/ 73, John, N7ON K2/100 #5023 ___ 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 Metering?
Fred, Yes, the KPA100 (and the KAT2 and the KAT100) contain a directional coupler type wattmeter to indicate the forward power and the SWR. These wattmeters remove the necessity for operating the K2 into a 50 ohm non-reactive load in order to obtain power accuracy. The forward power output of these wattmeters is used to control the K2 power output as well as display it on the LED (and on the LCD during TUNE). These internal wattmeters need to be calibrated with some external reference power metering if they are expected to be accurate. I measure the RF Voltage across a 1% precision 50 ohm non-reactive dummy load for the calibration, and I feel I can calibrate the wattmeter to within 5% using that method. Many wattmeters available to hams are simply not that accurate. Even the Bird specs its accuracy at 5% of full scale ONLY after proper calibration - and with a 100 watt slug, that means the power reading can be up to 5 watts off at any power level. Know your instruments and know just how much to trust what they tell you. 73, Don W3FPR -Original Message- I saw a reference to a wattmeter in the KPA100? Does the K2's KPA100 option, include a wattmeter, beyond what metering is now present in my K2's relative reading LED multi-segment indicator? What comes with the KPA100, in this area? If I bought the KPA100 option, for my K2 - could I get a accurate indication if I'm putting out 10watts, 38 watts or 100 watts? Or if the SWR presented to the KPA100 is 1:1 or 11.6:1? I'm really trying to decide whether to bite on the KPA100 higher-power K2 option. Thanks, Fred N3CSY ___ 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] Anyone got their KXB3080?
I downloaded the KXB3080 manual and had some questions: How hard is it to put together for a KX-1 that has already had the KXB30 30M unit and auto antenna tuner installed? Has anyone found some universal wire antenna lengths that will work with the KX-1 and internal antenna tuner - over all four (80, 40, 30, 20) bands? Thanks, Jay W6CJ ___ 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] Anyone got their KXB3080?
Jay, W6CJ wrote: I downloaded the KXB3080 manual and had some questions: How hard is it to put together for a KX-1 that has already had the KXB30 30M unit and auto antenna tuner installed? Has anyone found some universal wire antenna lengths that will work with the KX-1 and internal antenna tuner - over all four (80, 40, 30, 20) bands? -- As the manual indicates, the first step is to remove the KXB30 module if one is installed. Then it's the same process as for a KX1 that did not have the KXB30 module. The KXAT1 tuner just unplugs, as described in the manual. The manual shows how to install a simple jumper that routes RF to the antenna jack for testing until you're done with the upgrade and ready to replace the KXAT1. There's more to the KXB3080 upgrade than for just the KXB30 because for the KXB3080 installation the whole receiver input circuit is modified. It's changed from a simple capacitively-coupled input to a transformer-coupled input. What you get for the effort is a receiver with slightly improved performance on all the bands, not just on 80. I've seen some posts of people working on combinations of wire lengths for an 80/40/30/20 meter antenna that the KXAT1 can match easily, but I haven't followed them closely. I'll leave it to one of those who actually did that work to answer that question. 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] YX0A/YX0LIX URL
Those were some great photos. Does anyone know what kind of camera they used? On 6/24/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Forgot to post the YX0A/YX0LIX K2/100 photos URL: http://www.yv0.info/ 73, John, N7ON K2/100 #5023 ___ 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 -- John [K7SVV] ___ 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] Anyone got their KXB3080?
Jay, As you no doubt noticed when reading the instructions, the KXB3080 does take a bit more care and patience than most. In fact, I would rate it as the most critical construction item that Elecraft has produced. It takes care and careful attention to the instructions if one expects everything to fit together and work when complete. After doing 12 of these upgrades, and repairing 3 others, I can easily do the job in a couple hours now, but the first couple times it took a lot longer to get it right and refine my technique. I do recommend Mychael's pre-wound toroids because they are a bit tricky to wind and tin the leads properly. Mychael's price is $9 per set plus $6 for shipping based on the latest info I have, and I consider it a bargain. If you need me to do the KXB3080 install for you, I charge $39 plus $10 for pre-wound toroids (I order in bulk and pass along the savings) and $16 for return packing and insured shipping - total $65. I try to turn these around in a couple days so you are not without your KX1 for a long time. The only advice I can offer on the antenna is to stay away from lengths that are 1/2 wavelength on any band for either the radiating element or counterpoise wires (assuming direct connect to the KX1 with no tuner - or feedline plus radiator lengths) - the W3EDP lengths of 85 ft and 17 feet have been found good by several folks, and I can say that my doublet 22 ft per side with a 25 ft parallel transmission line feedline (47 ft total per side) works nicely on 80, 40 and 20, although it is getting close to a half wave on 30 meters where I have to experiment with adding or subtracting a bit of feedline. 73, Don W3FPR -Original Message- I downloaded the KXB3080 manual and had some questions: How hard is it to put together for a KX-1 that has already had the KXB30 30M unit and auto antenna tuner installed? Has anyone found some universal wire antenna lengths that will work with the KX-1 and internal antenna tuner - over all four (80, 40, 30, 20) bands? Thanks, Jay W6CJ ___ 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 w/LDG FT-Meter
Call me old school but I've always been a sucker for an analog S/RF meter. I absolutely LOVE my K2/100 and was wondering if anybody has tried using LDG's new FT-Meter in conjunction with their K2? Thanks in advance. Here's the link: http://www.ldgelectronics.com/FT-Meter_pictures.html Vy 73 de Bert WA2SI FISTS #9384/CC #1736 QRP ARCI #11782 ___ 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 w/LDG FT-Meter
I think that only works with the FT-857 and -897. I connects to an analog meter output on the rig. Larry N8LP Bert Craig wrote: Call me old school but I've always been a sucker for an analog S/RF meter. I absolutely LOVE my K2/100 and was wondering if anybody has tried using LDG's new FT-Meter in conjunction with their K2? Thanks in advance. Here's the link: http://www.ldgelectronics.com/FT-Meter_pictures.html Vy 73 de Bert WA2SI FISTS #9384/CC #1736 QRP ARCI #11782 ___ 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 Linear Amp Driving Power
This is a followup... I put the linear output into a dummy load and tuned the amp to 1500 watts. The K2/100 was reading approx 50 watts on the LCD screen and the K2 LEDs would indicate 4 to 5 bars in the RF mode. This is good. If I dropped the power to 1000 watts the LCD screen would indicate anywhere from 16 to 25 watts and the LEDs would indicate 1 to 2 bars. I switched the tuner from the dummy load to the antenna position and it did not make any difference (it worked the same). This was done on 75 and 20 meters. I believe the DAC converter is affected by the strong RF field; however, the Bird 43 did indicate the same power out of the K2/100 as the K2s LCD screen indicated. The K2 power knob becomes somewhat touchy at the 1000 watt level, and the K2 LCD power indication seems to get more realistic as the power goes on up to the 1500 watt level. The K2VCOSHLDKT has been installed. I have moved the K2 approx 3 feet away from the linear amp, but it is on the same side as the amps power transformer. The K2 is also about 3 feet from the Astron VS35M. (The foldback current limiting setting on the power supply is set fully clockwise) Maybe magnetic fields can cause funny things to happen. Roy Morris W4WFB No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.3/374 - Release Date: 6/23/2006 ___ 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
RE: [Elecraft] KPA100 Metering?
One thing I overlooked about your question about SWR metering: it only indicates the SWR up to 9.9:1. Ron ___ 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 Linear Amp Driving Power
Roy, Your follow-up brings more questions than it answers. It could just be the knee of the diode curve for the diodes in the wattmeter of the KPA100 - or since the Bird agrees with the K2 display, it may be that your amp is not really linear or the wattage indication on the output side is incorrect. Try the same thing with another transceiver driving the linear (with the Bird in-line as with the K2) and see how the amp responds with the same power inputs as indicated on the Bird - that will at least give you a basis for comparison (but not really yield valid measurements - see below). BTW, for the output to go from 1500 watts to 1000, if 1500 watts takes 50 watts, then the output with 25 watts should be 750 watts unless the amp is not working in its linear range. 1000 watts out should require 33.3 watts input. How accurate is your Bird? When was it calibrated last? How did you calibrate the KPA100 wattmeter? Do you know how much you can trust the output indication from your other transceivers? The difference between 25 watts and 33 watts is about 33% and could be easily attributed to an accumulation of tolerances. If accuracy counts, everything in the system must be properly calibrated and characterized to before drawing any conclusions. 73, Don W3FPR -Original Message- This is a followup... I put the linear output into a dummy load and tuned the amp to 1500 watts. The K2/100 was reading approx 50 watts on the LCD screen and the K2 LEDs would indicate 4 to 5 bars in the RF mode. This is good. If I dropped the power to 1000 watts the LCD screen would indicate anywhere from 16 to 25 watts and the LEDs would indicate 1 to 2 bars. I switched the tuner from the dummy load to the antenna position and it did not make any difference (it worked the same). This was done on 75 and 20 meters. I believe the DAC converter is affected by the strong RF field; however, the Bird 43 did indicate the same power out of the K2/100 as the K2s LCD screen indicated. The K2 power knob becomes somewhat touchy at the 1000 watt level, and the K2 LCD power indication seems to get more realistic as the power goes on up to the 1500 watt level. The K2VCOSHLDKT has been installed. I have moved the K2 approx 3 feet away from the linear amp, but it is on the same side as the amps power transformer. The K2 is also about 3 feet from the Astron VS35M. (The foldback current limiting setting on the power supply is set fully clockwise) Maybe magnetic fields can cause funny things to happen. Roy Morris W4WFB ___ 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] Anyone got their KXB3080?
On Jun 24, 2006, at 10:16 AM, Alexandra Carter wrote: Ugh. The 30m module kicked my butt, had to install it 2X plus lots and lots of fiddling around with it. I can't imagine doing the 3080 now. I guess for multi-band the easiest was always the NorCal Sierra, plug 'em in and plop! there's another band lol. 73 de Alex NS6Y Of course the Sierra was designed by a recognized master of the craft! The band plugins remind me of the old National HRO series receivers. I still have an unbuilt 30m board for my KX-1. I should hurry and finish it before these 67-year-old eyes get any worse. 73 - Bob, N7XY ___ 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
[QRP-L] WTB: KX1
Hello, I'm looking for a KX1 - built, partially built, or still in kit form. If you have one you would like to find a new home for, please contact me off-list. Tnx es 73, ed - k9ew __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
[Elecraft] FS: Elecraft K - Twins
I have for sale the following: K2 s/n 4028 full power thru 12M, 8W on 10M into 50 ohm dummy load. latest revision software. KSB2 K160RX KIO2 KNB2 KDSP2 KPA100(w/upgrades)/KAT100 in EC2 enclosure(includes interconnecting cables). $1750 to Continental US only. Contact me off reflector if interested. Jim, W4ATK ___ 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] QSK-5 T/R switch
Is anyone using the Ameritron QSK-5 with their K2/100? If so I need to hear from 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] newbie questions
forgive the newbie questions pls...but 1. Is there a menu item for Carrier Insert for SSB ? (frequency offset to change the tone of the TX Audio) 2. Is there just the one menu for Mic Gain? ( 1 (att) , 2 (att off) and 3 (att off)maybe im missing something ... i sorta need an in between setting 3. What is a good ...mid priced...Soldering Station Brand ? thanks Steve KW5TX ___ 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] newbie questions
Steve, If I interpret your first question correctly regarding 'frequency offset': The 'frequency offset' for SSB would be the BFO setting for the FL1 filter position - also note that you must set the SSB FL1 filter width to OP1 - otherwise the transmitted passband can be quite skewed. The FL1 BFO frequency is used as the carrier oscillator frequency during transmit - that is true for all modes, not just SSB (there is a separate set of 4 filters for each mode). During CW receive, the frequency is offset by the amount of your chosen sidetone pitch, but on SSB, there is no offset inserted, the transmmit frequency is the difference (or sum) of the BFO and the VCO frequencies. This adjustment is covered in the BFO alignment sections of the manual(s), but most of us refer to it as 'Filter Alignment' or 'CAL PLL' and is most easily accomplished with a wideband noise generator while observing the resulting passband with an audio Spectrum Analyzer type display (Spectrogram is one example of such an analyzer, it uses the computer soundcard to do a FFT of the input signal). The K2 Dial Calibration article on my website http://w3fpr.qrpradio.com has the filter alignment process (CAL FIL) contained within it. The K2 mic gain is as you describe it. The Speech Processor chip does a great job of limiting the audio under normal conditions with a typical amateur class mic having adequate (normal) output. If you are using a Heil mic with the HC4 or HC5 elements, you may need additional gain because those elements output is 6 to 10 dB below the average ham mic - a preamp is the best solution if that is your chosen mic. You should not normally need anything between the mic gain setting if the speech processor is doing its job. As for soldering stations, I like the Hakko 936, but there are lesser priced alternatives as well as more expensive. Had you stated your price target range in dollars, I could offer better alternatives. 73, Don W3FPR -Original Message- forgive the newbie questions pls...but 1. Is there a menu item for Carrier Insert for SSB ? (frequency offset to change the tone of the TX Audio) 2. Is there just the one menu for Mic Gain? ( 1 (att) , 2 (att off) and 3 (att off)maybe im missing something ... i sorta need an in between setting 3. What is a good ...mid priced...Soldering Station Brand ? thanks Steve KW5TX ___ 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] Free: N0SS Noise Generator Board
Going through some old boxes and discovered a circuit board and instruction sheet for building the N0SS Broadband Noise Generator. This is not a kit but a circuit board only. See Tom's document at http://www.n0ss.net/noise_source.pdf. It's free (including postage) to the first reply from someone who will actually build the generator and use it. I mail it anywhere in the world via regular surface mail. Darrell K2 #5093 -- Darrell Bellerive Amateur Radio Stations VA7TO and VE7CLA Grand Forks, British Columbia, Canada ___ 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] KX1 Trouble
Hey Guys, I was trying to operate Field Day with my KX1 this year, but quickly ran into trouble with the KX1. It seems that the paddle is stuck down, so that I constantly transmit. When it first started and I realized that I could not stop it, I assumed there was short somewhere on the paddle so I quickly disconnected it from the the KX1. That did not help, so I shut the rig off. I tried turning it back on but it was still transmitting. Next I tried to reset to the default values, by holding the Menu and Band buttons down during power up as described in the manual and that seemed to stop the transmitting. However, the BAT LO warning came on soon after, so I assumed the trouble was somehow caused by low battery voltage. Then the constant transmitting started again. I tried removing the batteries and connecting the rig to the power supply and reseting to default values again, but this time it did not stop the transmitting. I am now stuck with a KX1 that will only transmit a random series of dahs. Has anyone ran into problems like this, or know where I should start looking for trouble??? Thanks, Jason n9avg kx1 #1491 ___ 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
