Re: [Elecraft] LINE OUT output too low?
FWIW, standard Line Out is 1Vp-p at 600 ohms line impedance. matt I think you'll find standard, nominal Line-In/Out consumer levels to be referenced to -10 dBV irrespective of Z, where 0dBV = 1 Vrms. This standard started with the old IHF, merged into EIA, and then somewhere along the way I believe AES became the recognized standard-setting organization in North America. K9YC would know for sure. -10 dBV is equivalent to 0.316 Vrms. If we assume a worst-case 10 dB peak-to-average ratio (and probably a lot less depending on the K3's AGC menu settings), then the maximum distortion-free signal voltage handling required is 0 dBV or 1 Vrms or 2.83 Vp-p. Paul, W9AC ___ 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] LINE OUT output too low?
On Wed, 17 Dec 2008 07:28:32 -0500, Paul Christensen wrote: FWIW, standard Line Out is 1Vp-p at 600 ohms line impedance. matt I think you'll find standard, nominal Line-In/Out consumer levels to be referenced to -10 dBV irrespective of Z, where 0dBV = 1 Vrms. Yes. 600 ohms has not been part of audio practice, pro or consumer, for at least 40 years. ALL line level and mic level audio circuits, pro and consumer, are low impedance source, high impedance termination. The signal is transferred as a voltage, not as power or current. Typical output impedances are on the order of 100 ohms, input impedances are typically 10K for pro line level, 50K for consumer line level. 100 ohms is chosen primarily because it is a good value for isolation of op amps from the capacitance of the cable that it drives. This capacitance can be significant in pro installations, but rarely in consumer applications. This standard started with the old IHF, merged into EIA, and then somewhere along the way I believe AES became the recognized standard-setting organization in North America. K9YC would know I can't speak to the history of these standards, but The AES Standards Committee is an international body, of which I am a member. -10 dBV is equivalent to 0.316 Vrms. If we assume a worst-case 10 dB peak-to-average ratio (and probably a lot less depending on the K3's AGC menu settings), then the maximum distortion-free signal voltage handling required is 0 dBV or 1 Vrms or 2.83 Vp-p. Yes. For those who are interested, there's more on this in the tutorials on my website. http://audiosystemsgroup.com/publish 73, Jim Brown K9YC ___ 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] LINE OUT output too low?
In the past, it was suggested that folks add a T or Pi attenuator to bring the level down. I build two 13 dB T attenuators for 600 ohms, and this worked fine - one for MIC IN and the other for SPKR OUT - this is on a laptop. Housing them (inline) in micro-miniature plastic housings once used for a Magellan GPS PIFA antenna. Doing this allowed much finer control over levels than I had before. I had to run Line In at 2 - which for PSK or other data modes leaves no control space at all. Now I can run it at 14 or 15, which is just right. 73, matt zilmer, W6NIA k3 # 24 On Wed, 17 Dec 2008 02:42:10 -0800 (PST), you wrote: André Santos wrote: The actual output level (or amplification) for some reason is well below the standard for line outs. Elecraft should address this problem. That may or may not be the case but it is more than ample to drive a sound card input. To drive my sound card without overload I only need the line out level set to about 4. The problem is worse for those who use laptops because most new laptops appear not to have a line input at all, only a microphone input which of course is a lot more sensitive and requires even less signal from the K3. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and 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] LINE OUT output too low?
Thanks, both Paul and Jim for this information. Very useful and I'll update my knowledge base with it! 73, matt On Wed, 17 Dec 2008 08:45:53 -0800, you wrote: On Wed, 17 Dec 2008 07:28:32 -0500, Paul Christensen wrote: FWIW, standard Line Out is 1Vp-p at 600 ohms line impedance. matt I think you'll find standard, nominal Line-In/Out consumer levels to be referenced to -10 dBV irrespective of Z, where 0dBV = 1 Vrms. Yes. 600 ohms has not been part of audio practice, pro or consumer, for at least 40 years. ALL line level and mic level audio circuits, pro and consumer, are low impedance source, high impedance termination. The signal is transferred as a voltage, not as power or current. Typical output impedances are on the order of 100 ohms, input impedances are typically 10K for pro line level, 50K for consumer line level. 100 ohms is chosen primarily because it is a good value for isolation of op amps from the capacitance of the cable that it drives. This capacitance can be significant in pro installations, but rarely in consumer applications. This standard started with the old IHF, merged into EIA, and then somewhere along the way I believe AES became the recognized standard-setting organization in North America. K9YC would know I can't speak to the history of these standards, but The AES Standards Committee is an international body, of which I am a member. -10 dBV is equivalent to 0.316 Vrms. If we assume a worst-case 10 dB peak-to-average ratio (and probably a lot less depending on the K3's AGC menu settings), then the maximum distortion-free signal voltage handling required is 0 dBV or 1 Vrms or 2.83 Vp-p. Yes. For those who are interested, there's more on this in the tutorials on my website. http://audiosystemsgroup.com/publish 73, Jim Brown K9YC ___ 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] SELL: K3/100
Hi- I have two K3/100 rigs. One is enough...sort of. For sale is a factory built K3/100 in perfect condition. Not a scratch, non smoking environment. I will ship it and insure it in the lower 48. Not outside of U.S. This rig includes: Power amplifier...KPA3-F Internal antenna tunerKAT3-F (with second antenna jack) KFL3A-500..500 Hz, 5 pole roofing filter KFL3A-200..200 Hz, 5 pole roofing filter KFL3B-FM13 KHz, 8 pole roofing filter (required for FM) $2525 shipped and insured. Reply off list, please. 73 de Dave in NH ___ 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: Date and Time Problem
I've not seen that myself, Gerry. Since you know it's not shorted, suggest you: 1) Check power at the holder terminals and not just across the battery? If you have the KRX3, it's not too hard to accidentally slip the battery shield in between the battery and the contact, effectively disconnecting the battery from the rig. 2) Is the battery in the right way around (polarity correct)? Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w...@aol.com Sent: Wednesday, December 17, 2008 7:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: Date and Time Problem My K3 (1428) has had a problem maintaining date and time information when the power is off. Since I didn't buy my K3 to be a $3000 clock/calendar, this is not a big problem but a minor annoyance. When I turn the power off and turn it back on the date normally goes to 12.19.01 (US Format) and the Time to 15:11:22 although the last four digits are normally different. The battery is not shorted and seems to be able to retain VFO memories and other setting just fine.I just installed the sub-receiver, but this problem was there since I first built the K3 in August 2008. I haven't seen any threads of a similar problem so any suggestions would be appreciated. Tnx, Gerry, W1GD **One site keeps you connected to all your email: AOL Mail, Gmail, and Yahoo Mail. Try it now. (http://www.aol.com/?optin=new-dpicid=aolcom40vanityncid=emlcntaolcom0 025) ___ 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] K3 No 133
Ok I've been very busy enjoying my K3 for almost one year now !! ( serial No 133) It's an amazing radio. I've just started to pay creedence to the need to update/modify/ get help for my radio. What do I have to do to bring it up to date, I dont mean software updates as I am on the ball there, but should I be asking Elecraft for any mod kits etc? I've ordered two more K3's for our club ( VK6ANC) which are in Customs here as we speak which will be fully up to date I would imagine but what about my old girl ! Thanks! and Merry Xmas Keith VK6XH -- Keith VK6XH / VK6DXR Chairman WIA VK6 Advisory Committee. Northern Corridor Radio Group Inc VK6ANC ___ 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] LINE OUT output too low?
600ohms still seems to be the practice for ship and aircraft intercoms that I've come across recently. David G3UNA Yes. 600 ohms has not been part of audio practice, pro or consumer, for at least 40 years. ALL line level and mic level audio circuits, pro and consumer, are low impedance source, high impedance termination. The signal is transferred as a voltage, not as power or current. Typical output impedances are on the order of 100 ohms, input impedances are typically 10K for pro line level, 50K for consumer line level. 100 ohms is chosen primarily because it is a good value for isolation of op amps from the capacitance of the cable that it drives. This capacitance can be significant in pro installations, but rarely in consumer applications. For those who are interested, there's more on this in the tutorials on my website. http://audiosystemsgroup.com/publish 73, Jim Brown K9YC ___ 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 AF Mods
I don't really use my speaker very often, but I just wanted to keep my K3s up to date by installing the AF amp and LINE OUT AF mods. They went in very easily even though I chose the harder installation choices. I even piggy backed the SMT resistors without a problem. They aren't pretty, but they work fine. ;-)I then plugged in a pair of external Yamaha computer speakers I had laying around and the audio sounds very mellow and clear on both SSB an CW. I also adjusted the RX EQ to emphasize the lower ranges more. I really hadn't noticed any distortion previously, but it seems to be more pleasing to the ears now. I feel like a Bose advertisement now when I say I can't believe that GREAT sound comes out of that little bitty box!. 73, Bob K5WA ___ 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] Subreceiver
Jon K Hellan wrote: My K3 has 3 filters - 2.7, 1.8 and 0.5. How much sense would it make to order a subreceiver with just the standard filter? It depends on how much you plan to use it in contests. If you are a *serious* SSB/CW contester who plans to use a KRX3 during contests, you probably need both the 1.8 and 0.5. If not, you don't need extra filters. If you do plan to add a 500 to the KRX3 for diversity use, you should note the offset of your existing 0.5 and attempt to get one close to it. It's not critical that 500 offsets be perfectly matched...just within ~50 Hz and then set the common offset to the approximate midpoint. BTW my 200 in Main and 500 in Sub differ by 130 Hz in offset, yet I notice no beating when using that combination. However my case may be unique and you should always use matched offsets for identical filters. Beware...once you use true diversity, you will never want another rig without it! 73, Bill -- View this message in context: http://n2.nabble.com/Subreceiver-tp1668172p1668279.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: Date and Time Problem
My K3 (1428) has had a problem maintaining date and time information when the power is off. Since I didn't buy my K3 to be a $3000 clock/calendar, this is not a big problem but a minor annoyance. When I turn the power off and turn it back on the date normally goes to 12.19.01 (US Format) and the Time to 15:11:22 although the last four digits are normally different. The battery is not shorted and seems to be able to retain VFO memories and other setting just fine.I just installed the sub-receiver, but this problem was there since I first built the K3 in August 2008. I haven't seen any threads of a similar problem so any suggestions would be appreciated. Tnx, Gerry, W1GD **One site keeps you connected to all your email: AOL Mail, Gmail, and Yahoo Mail. Try it now. (http://www.aol.com/?optin=new-dpicid=aolcom40vanityncid=emlcntaolcom0025) ___ 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 feeling of knobs and switches
wayne burdick wrote: A useful tool in this regard is the CONFIG:SW TEST menu entry. (Requires that TECH MD = ON.) When you're in this menu entry, you can tap any switch to check its scan code. Support can help you determine if incorrect codes are being returned for some reason. Maybe it's not me and the way I press the switches! Most of mine flash between two numbers when I hold the switch . I take it that this is not normal, and probably why it does strange things sometimes when I either tap or hold some of the switches . Like when Band Down (or Up) goes down (or up) two bands and maybe turns on (or off) the VOX sometimes - Not real steady. Thanks for the hint! 73HankK8DD -- View this message in context: http://n2.nabble.com/K3-feeling-of-knobs-and-switches-tp1661699p1668483.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Subreceiver
When buying new filters, can one specify the offset required? David G3UNA Bill W4ZV btipp...@alum.mit.edu wrote: It depends on how much you plan to use it in contests. If you are a *serious* SSB/CW contester who plans to use a KRX3 during contests, you probably need both the 1.8 and 0.5. If not, you don't need extra filters. If you do plan to add a 500 to the KRX3 for diversity use, you should note the offset of your existing 0.5 and attempt to get one close to it. It's not critical that 500 offsets be perfectly matched...just within ~50 Hz and then set the common offset to the approximate midpoint. BTW my 200 in Main and 500 in Sub differ by 130 Hz in offset, yet I notice no beating when using that combination. However my case may be unique and you should always use matched offsets for identical filters. Beware...once you use true diversity, you will never want another rig without it! 73, Bill ___ 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: Date and Time Problem
Ron D'Eau Claire wrote: I've not seen that myself, Gerry. Since you know it's not shorted, suggest you: 1) Check power at the holder terminals and not just across the battery? If you have the KRX3, it's not too hard to accidentally slip the battery shield in between the battery and the contact, effectively disconnecting the battery from the rig. Since Gerry had the problem before the KRX3 was installed, I doubt it's the battery shield (which is added as part of the KRX3 installation). If Ron's suggestions don't work, I would then try Parameter Initialization on page 61 of the latest (Rev D) manual. BE SURE TO FIRST SAVE YOUR CURRENT CONFIGURATION using the K3 Utility before doing EE INIT. You can then use the K3 Utility to RESTORE it after the reset. 73, Bill -- View this message in context: http://n2.nabble.com/K3%3A-Date-and-Time-Problem-tp1668463p1669618.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 S meter and AGC on/off
One unique feature of the K3 is that the S meter operates even when AGC is turned off. Lately I've taken to operating often with AGC off to maximize weak signal performance (using the RF gain to control volume), but have noted that the S meter reading is a strong function of whether AGC is on or off. When AGC is off the S meter readings are lower, while when AGC is on the readings are higher by about 2 or 3 S units. This is with the RF gain in the full clockwise position. My K3 S meter is uncalibrated and operating using the default OF and SC configuration settings. Any thoughts on why the meter reads differently between AGC on and off? Steve N9SZ K3 1672 ___ 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 No 133
Keith, you can start here: http://www.elecraft.com/K3/k3_app_notes.htm Best 73, Frank - W6NEK - Original Message - From: Keith Bainbridge vk...@arach.net.au To: elecraft@mailman.qth.net Sent: Wednesday, December 17, 2008 5:44 AM Subject: [Elecraft] K3 No 133 Ok I've been very busy enjoying my K3 for almost one year now !! ( serial No 133) It's an amazing radio. I've just started to pay creedence to the need to update/modify/ get help for my radio. What do I have to do to bring it up to date, I dont mean software updates as I am on the ball there, but should I be asking Elecraft for any mod kits etc? I've ordered two more K3's for our club ( VK6ANC) which are in Customs here as we speak which will be fully up to date I would imagine but what about my old girl ! Thanks! and Merry Xmas Keith VK6XH -- Keith VK6XH / VK6DXR Chairman WIA VK6 Advisory Committee. Northern Corridor Radio Group Inc VK6ANC ___ 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: Question re K3 diversity reception
Tony, There is a bunch of info online that addresses your question. Look for W3NQN filters, notch filters, http://www.n6rk.com/loopantennas/pacificon.pdf , coax stubs, VP6DX presentations, ICE, CQ-Contest reflector. From what I've read and talked with others about, it's a rare situation that you would not need something even at LP levels. HP it's pretty much a given. The biggest decision you may have to make is what will work for you... Oh and how much time and/or money to put into getting it right. One could argue that with all the RF floating around most neighborhoods, band pass filters are a definite plus for weak signal work on the low bands. Too, check out the YCCC, and other big contest group or station, websites for ideas about what works and what does not. 73, Julius Subject: RE: [Elecraft] Re: Question re K3 diversity reception Wayne, To carry this one step more, what about when I am running multiple K3's on different bands at the same time? Do you recommend to use external receive bandpass filters on the receive lines if I am using receive antennas on the Receive Antenna and/or Aux input? And also use transmit bandpass filters on the transmit antenna input when I am using the transmit antenna for both receive and transmit? Julius Fazekas N2WN Tennessee Contest Group TnQP http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 ___ 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: Question re K3 diversity reception
I have been using SO2R in some of the RTTY contests for several years now. When I first set it up I was concerned about blowing the front end transistors in my (then) paired ICOM 756PRO radios. It occurred to me that I could simply measure RF voltage coming back in from the other antenna when under full power and verify that I was below the voltage that might damage the input devices. I made up a simple 50 ohm loaded diode probe for the measurements with my DVM. The usual techniques of stubs and filters, along with antenna separation of apprx a hundred feet, yielded worst-case voltages of around 300 mv with 1000 watts tx'ed on the other antenna. I assumed this could easily be tolerated by the radios and so far this has proven correct through 3 generations of different pairs of radios. I would recommend this technique of actually measuring the incoming voltage, then use common sense as to what levels are tolerable. Yesterday Wayne gave some guidance on tolerable levels with the K3, removing some of the guesswork. Jerry W4UK Subject: RE: [Elecraft] Re: Question re K3 diversity reception Wayne, To carry this one step more, what about when I am running multiple K3's on different bands at the same time? Do you recommend to use external receive bandpass filters on the receive lines if I am using receive antennas on the Receive Antenna and/or Aux input? And also use transmit bandpass filters on the transmit antenna input when I am using the transmit antenna for both receive and transmit? Julius Fazekas N2WN Tennessee Contest Group ___ 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] LINE OUT output too low?
André Santos wrote: The actual output level (or amplification) for some reason is well below the standard for line outs. Elecraft should address this problem. That may or may not be the case but it is more than ample to drive a sound card input. To drive my sound card without overload I only need the line out level set to about 4. The problem is worse for those who use laptops because most new laptops appear not to have a line input at all, only a microphone input which of course is a lot more sensitive and requires even less signal from the K3. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/LINE-OUT-output-too-low--tp1656257p1667382.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Subreceiver
I wasn't really planning a subreceiver now, but we'll be visiting the U.S. around easter. If the backlog keeps clearing, I just might be able to bring one home, avoiding 25% VAT plus expensive freight to Europe in a legal manner. (Not buying a subreceiver at all will save even more money :-) ). My K3 has 3 filters - 2.7, 1.8 and 0.5. How much sense would it make to order a subreceiver with just the standard filter? 73 Jon LA4RT ___ 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 No 133
What do I have to do to bring it up to date, I dont mean software updates as I am on the ball there, but should I be asking Elecraft for any mod kits etc? http://www.elecraft.com/K3/k3_app_notes.htm 73, Bill -- View this message in context: http://n2.nabble.com/K3-No-133-tp1667926p1668223.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WTB/Trade TS-680S or similar
Hi Guys, I'm looking for an older HF/6m rig for a friend. Budget is very limited on this. Looking for something like an older TS-680 or similar... Anybody got something collecting dust that we can negotiate on ?? Thanks all, Happy Holidays Niel WA7SSA ___ 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] Subreceiver
On Wed, Dec 17, 2008 at 10:14 AM, d.cutter (via Nabble) ml-user+39197-312096...@n2.nabble.com wrote: When buying new filters, can one specify the offset required? If you pay the additional $30 fee, I'm sure Elecraft can do that. I took my chances with my KRX3 unit and the 500s just happened to match. That's probably because they came from the same batch but you might not be as lucky. However if the offsets are within ~50 Hz for 500 Hz filters, there should be no problem setting both filters to the midpoint. For 2.7ks, even larger offsets could be tolerated due to the much wider bandwidth. 73, Bill -- View this message in context: http://n2.nabble.com/Subreceiver-tp1668172p1668370.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: Question re K3 diversity reception
http://www.pvrc.org/~n4zr/Articles/simple_protection_for_the_fledgl.htm Here is a link that may help? It has been posted here before. 73 de jay/w5jay.. I have been using SO2R in some of the RTTY contests for several years now. When I first set it up I was concerned about blowing the front end transistors in my (then) paired ICOM 756PRO radios. It occurred to me that I could simply measure RF voltage coming back in from the other antenna when under full power and verify that I was below the voltage that might damage the input devices. I made up a simple 50 ohm loaded diode probe for the measurements with my DVM. The usual techniques of stubs and filters, along with antenna separation of apprx a hundred feet, yielded worst-case voltages of around 300 mv with 1000 watts tx'ed on the other antenna. I assumed this could easily be tolerated by the radios and so far this has proven correct through 3 generations of different pairs of radios. I would recommend this technique of actually measuring the incoming voltage, then use common sense as to what levels are tolerable. Yesterday Wayne gave some guidance on tolerable levels with the K3, removing some of the guesswork. Jerry W4UK Subject: RE: [Elecraft] Re: Question re K3 diversity reception Wayne, To carry this one step more, what about when I am running multiple K3's on different bands at the same time? Do you recommend to use external receive bandpass filters on the receive lines if I am using receive antennas on the Receive Antenna and/or Aux input? And also use transmit bandpass filters on the transmit antenna input when I am using the transmit antenna for both receive and transmit? Julius Fazekas N2WN Tennessee Contest Group ___ 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] Halted by tiny screws
I was making good progress with my K3/10 kit until I got to the front side of the front panel. There are two standoffs that require two 2-56 1/4 screws that I don't have... they're sending them from Aptos with apologies but I'm on the east coast :( ___ 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: Date and Time Problem
Ron, Thanks. I decided to take the top and left side covers off to try to get to the battery without removing the KRX3. I managed to pull the battery out and check it again. It was OK. After I put everything back together, the date and time started working normally. There didn't seem to be anything in the battery holder to keep it from making good contact. This was a problem before I installed the KRX3 (and the battery cover) so I really don't know what could have gotten in there. But it's all working now. Thanks for giving me the incentive to take things apart andcheck the battery connection! 73, Gerry, W1GD **One site keeps you connected to all your email: AOL Mail, Gmail, and Yahoo Mail. Try it now. (http://www.aol.com/?optin=new-dpicid=aolcom40vanityncid=emlcntaolcom0025) ___ 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: Halted by tiny screws
Radio Shack is supposed to have an assortment of 2-56 so I'm off to find them. ___ 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: Halted by tiny screws
A good hobby shop catering to the model aircraft builders should have 2-56 hardware. Jack K8ZOA Benson wrote: Radio Shack is supposed to have an assortment of 2-56 so I'm off to find them. ___ 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] LINE OUT output too low?
Paul, Jim and everybody else: The discursion about mVs has been excellent and pretty much instructive but all I'd like to know is why I can use my handheld Marantz recorder with every single radio in my shack that has a line level audio output but I can't use it with my K3! There is something else: when I plug a stereo cable from the k3's line out to the recorder's line in I have to change the recorder's input settings to MONO because with STEREO there is signal only on the left channel. Ok, the right channel is supposed to be used by the sub-receiver. But what if the sub-receiver is not installed? Just as additional info, I have here a Eton E1 receiver and it has line level out/in. It's manual (specifications) says: Line Audio Output: 300 mV, 1K ohms for each output (left/right). Line Audio Input: 300 mV, 47K ohms. 73s André, PT7AT Matt Zilmer wrote: Thanks, both Paul and Jim for this information. Very useful and I'll update my knowledge base with it! -- View this message in context: http://n2.nabble.com/LINE-OUT-output-too-low--tp1656257p1670666.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] LINE OUT output too low?
On Wed, 17 Dec 2008 19:38:34 -, David Cutter wrote: 600ohms still seems to be the practice for ship and aircraft intercoms that I've come across recently. Maybe, maybe not. Often the people the write the data sheets are marketing dweebs, and have no technical background. I don't know anything about aircraft electronics practices. My observations are based on actual measurements of input and output impedances, and/or studying the schematics. Often, a data sheet says 600 ohms and all that they mean is that the output stage can be loaded with 600 ohms and meet its specs. When you measure it, you find a 100 ohm output impedance. Often, a data sheet will say 600 ohms because the marketing dweeb (or even the engineer) thinks that pro stuff is 600 ohms. It is not, and has not been since the days when tubes ruled. It's also common for engineers in industries unrelated to audio (like RF and vdieo) to apply transmission line methods to audio. That, of course, is completely inappropriate. The only audio circuits that are long enough to behave as transmission lines are VERY long telephone lines. At audio frequencies, the characteristic impedance of ANY practical transmission line is complex (that is, R + jX), and varies widely with frequency. There's a tutorial about this on my website. 73, Jim K9YC ___ 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] LINE OUT output too low?
On Wed, 17 Dec 2008 16:21:43 -0800 (PST), Andr+ª Santos wrote: why I can use my handheld Marantz recorder with every single radio in my shack that has a line level audio output but I can't use it with my K3 Pull up the schematics on the internet and study how the jacks are wired. 73, Jim K9YC ___ 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 PK-232 FSK RTTY Setup
For those now or in the future wanting to setup the PK-232 with the K3 using FSK here is the information. I would think you could do this very similarly for the Hal and other TNC'S. Of course the specific wiring would be different but the same general hook up should work. This set up does not use the computer sound card at all. First you need a software program to control the PK-232 or the TNC you are going to use. I used Writelog but there are other software programs that will work. The PK-232 has a cable from it to a serial COM port port on your computer which you need to set up in your software, in my case Writelog. That is all you need between the PK-232 and the computer. There is absolutely nothing hooked to the computer sound card. The K3 should be set to FSK D, see page 31 of the K3 manual revision D1. Next you should be sure your software program is set up for the same tone and shift that you have the K3 set to. On the K3 activate pitch and set it accordingly. Most common would be 2125-170 which is what I have Writelog set at. From the K3 run an audio line from the line out to the Radio 1 or Radio 2 RX input on the PK-232. This jack is hooked respectively to the same place as J4 or J6 which is the 5 pin flat connector. I would suggest using Radio 1 and running an audio cable from the K3 line out to J3 which is the Radio 1 RX input. The K3 end is a sterio plug and the PK-232 is a mono plug. On the K3 go ahead and use a stereo cable and plug it into the K3 line out. On the PK-232 end of this cable cut off the stereo plug and solder on a mono plug. The tip from the stereo plug should be hooked to the tip of the mono plug which will be the left channel. This will be the K3 audio. The ring(one next to the tip) would be the SUB so just leave it unhooked and hook the barrel from the stereo plug to the ground of the mono plug. Go to the K3 config:Line out. I set it for about about 25. Remember the K3 manual is talking about sound card input when they mention 10 and here we are talking about input into the PK-232. The PK-232 manual says to have at least 200 mv RMS of receive audio. Using my scope and then calculating RMS I came up with the setting of 25 to get 200 mv RMS. It is better to be a little low than too high so you don't have distortion. For FSK transmit you need to hook the PK-232 FSK keying which is pin 1 of the DIN plug J7 to Pin 1 FSK Input of the K3 accessory plug. You hook the ground, Pin 2 of J7 to Pin 5 of the K3 accessory plug. J7 on the back of the PK-232 is labeled so that is easy. The K3 accessory jack information is on page 18 of the K3 manual revision D1. Be sure and note that the picture you are looking at in the K3 manual of the accessory jack is the radio pin out and not the plug on the cable you are making so be careful to use the correct pins. I just took a Video cable and cut the female connector off and used the appropriate wires to hook to the PK-232. The extra wires can be folded back and cut to different lengths and heat shrink tubing put over them so no wires can short to each other. From J4 on the PK-232 which is the 5 pin flat connector hook up the PTT line Pin 5 to the K3 accessory plug pin 4. This should complete the FSK setup for the K3 with the PK-232. Ed W0SD ___ 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 PK-232 FSK RTTY Setup
Ed, I would highly recommend that you use a bare 15 pin connector rather than a video cable. There are only 2 wires required, FSK IN and Ground. The video cables (cut off defunct monitors) that I have encountered have several pins connected together which will tie together those pins on the K3 ACC connector - can create some operational anomalies. I don't recall which pins are tied together, but the standard video cable pinout should be available somewhere on the internet, and Google can find it easily. 73, Don W3FPR Ed Gray W0SD wrote: For those now or in the future wanting to setup the PK-232 with the K3 using FSK here is the information. I would think you could do this very similarly for the Hal and other TNC'S. Of course the specific wiring would be different but the same general hook up should work. This set up does not use the computer sound card at all. First you need a software program to control the PK-232 or the TNC you are going to use. I used Writelog but there are other software programs that will work. The PK-232 has a cable from it to a serial COM port port on your computer which you need to set up in your software, in my case Writelog. That is all you need between the PK-232 and the computer. There is absolutely nothing hooked to the computer sound card. The K3 should be set to FSK D, see page 31 of the K3 manual revision D1. Next you should be sure your software program is set up for the same tone and shift that you have the K3 set to. On the K3 activate pitch and set it accordingly. Most common would be 2125-170 which is what I have Writelog set at. From the K3 run an audio line from the line out to the Radio 1 or Radio 2 RX input on the PK-232. This jack is hooked respectively to the same place as J4 or J6 which is the 5 pin flat connector. I would suggest using Radio 1 and running an audio cable from the K3 line out to J3 which is the Radio 1 RX input. The K3 end is a sterio plug and the PK-232 is a mono plug. On the K3 go ahead and use a stereo cable and plug it into the K3 line out. On the PK-232 end of this cable cut off the stereo plug and solder on a mono plug. The tip from the stereo plug should be hooked to the tip of the mono plug which will be the left channel. This will be the K3 audio. The ring(one next to the tip) would be the SUB so just leave it unhooked and hook the barrel from the stereo plug to the ground of the mono plug. Go to the K3 config:Line out. I set it for about about 25. Remember the K3 manual is talking about sound card input when they mention 10 and here we are talking about input into the PK-232. The PK-232 manual says to have at least 200 mv RMS of receive audio. Using my scope and then calculating RMS I came up with the setting of 25 to get 200 mv RMS. It is better to be a little low than too high so you don't have distortion. For FSK transmit you need to hook the PK-232 FSK keying which is pin 1 of the DIN plug J7 to Pin 1 FSK Input of the K3 accessory plug. You hook the ground, Pin 2 of J7 to Pin 5 of the K3 accessory plug. J7 on the back of the PK-232 is labeled so that is easy. The K3 accessory jack information is on page 18 of the K3 manual revision D1. Be sure and note that the picture you are looking at in the K3 manual of the accessory jack is the radio pin out and not the plug on the cable you are making so be careful to use the correct pins. I just took a Video cable and cut the female connector off and used the appropriate wires to hook to the PK-232. The extra wires can be folded back and cut to different lengths and heat shrink tubing put over them so no wires can short to each other. From J4 on the PK-232 which is the 5 pin flat connector hook up the PTT line Pin 5 to the K3 accessory plug pin 4. This should complete the FSK setup for the K3 with the PK-232. Ed W0SD ___ 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 PK-232 FSK RTTY Setup
Don, http://pinouts.ws/db15-vga-pinout.html shows the pin out and I don't see any pins connected together unless the grounds are common. I did check a lot of pins with the DMM but I did not find any in common but I did not check each and everyone. I will do that. Anyway your point is well taken as running 3 wires as PTT is also required makes more sense than having all the extra although the molded plug is nice for reliability. Ed W0SD Don Wilhelm wrote: Ed, I would highly recommend that you use a bare 15 pin connector rather than a video cable. There are only 2 wires required, FSK IN and Ground. The video cables (cut off defunct monitors) that I have encountered have several pins connected together which will tie together those pins on the K3 ACC connector - can create some operational anomalies. I don't recall which pins are tied together, but the standard video cable pinout should be available somewhere on the internet, and Google can find it easily. 73, Don W3FPR ___ 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] 2/56 screws
You didn't say where on the east coast, but try McMaster.com. They have them in stock. No minimum $, fast shipping. They are in NJ (me too). Order it today, have it tomorrow. A box of 100 runs around $2 - $3 depending upon the length. Worth it! de Doug KR2Q ___ 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 PK-232 FSK RTTY Setup
Ed Gray said: The PK-232 has a cable from it to a serial COM port port on your computer which you need to set up in your software, in my case Writelog. That is all you need between the PK-232 and the computer. There is absolutely nothing hooked to the computer sound card. Actually, if you want the best of both worlds you can run an audio cable between the PK-232 or the radio and the computer's sound card line in jack, and use MMTTY as a second decoder. If you have room on your computer monitor's screen, you can watch both decoders (PK-232 and MMTTY) running in parallel - sometimes one copies when the other doesn't. I haven't done this with the K3 yet, but I have used this trick with other radios. You can either use a Y-connector at the radio or the PK-232, or if you connect the radio's line out to the PK-232's 5-pin connector (J4), you can connect a cable between the PK-232's phone jack (J3) and the sound card (the audio inputs on J3 and J4 are connected directly together, so in effect there is a Y-connector inside the PK-232). In addition to giving you two decoders, this also lets you use MMTTY's crossed-ellipse X-Y tuning display, which you may prefer to the PK-232's LED tuning indicator. You can configure the MMTTY X-Y display to rotate in the same direction as the radio's tuning knob, which seems to simplify the hand-eye coordination process while tuning in signals. 73, Rich VE3KI ___ 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 PK-232 FSK RTTY Setup
After reading the various posts on the K3 ACC DB15 it seems to be much better practice to use Cat cable or some twisted pair wire and solder to a bare DB15 as Don and others have suggested so I have ordered some tonight. The best source I found was L-COMM. I have added this for those doing a search for this topic will see this excellent suggestion and can make an informed decision. Thanks, Don and others! Ed W0SD ___ 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] AL-811H Amp and K3
To confirm what I think you are saying here is? RCA plug on a wire from the K3 KEY OUT (RCA/Phono) to the RELAY RCA on the Amp ? Thus keying the K3, also keys the amp? 73, Al W6GBG - Original Message From: NZ0T n...@cox.net To: elecraft@mailman.qth.net Sent: Monday, October 13, 2008 8:50:40 AM Subject: Re: [Elecraft] AL-811H Amp and K3 David, I run the Al-811 (3 tubes otherwise the same as the 811H) with my K3 and interface is very easy. There is no need to use ALC just adjust the K3 power output so you are not overdriving the amp. With my setup that's around 60- 70 watts out. You just need a simple cable with RCA plugs as the keying line and you are good to go. GL and 73, Buill NZ0T David Wilburn wrote: I will be picking up an AL-811H soon. I was first licensed in 2001 and I have never had an amp. The 811 requires a 15ms delay, and I noticed that the firmware now supports up to a 20ms delay, so I should be good there. The 811 documentation talks quite a bit about the use of ALC, and the K3 documentation talks quite a bit about NOT using ALC. I'm not sure where to go with this. Anyone using a K3 with an 811? Do I need to use ALC with it? I am trying to get everything ready for the upcoming contests, so timing is becoming an issue. The current manual says to see the website to see if you need the mod kit. The website says to see the mod kit manual, to see if you need to the mod kit. The manual does not say anything about how to determine if you need the mod kit, so I assume that if -12v ALC is needed, the mod needs to be done. Is this correct? I do not see any mention in the K3 documentation about connecting to amps. It looks like the key out is used to key the amp. The manual says up to 200v DC @ 5A. The 811 documentation only mentions 12v, and gets grounded for keying the amp. Do I need any other devices inline for keying the amp? -- David Wilburn NM4M http://www.nm4m.com K2 - S/N 5982 K3 - S/N 766 Latest Firmware ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://n2.nabble.com/AL-811H-Amp-and-K3-tp1328824p1328843.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft 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 PK-232 FSK RTTY Setup
Rich, I have read Don AA5AU discussion on this and this is the next thing to do now that I have my two K3's wired up for FSK RTTY. I can do this as part of the process in getting ready for the ARRL RTTY Roundup. I have a 24 inch LCD monitor screen so hopefully I can find room. Thanks for the excellent suggestion and information. Richard Ferch wrote: Ed Gray said: The PK-232 has a cable from it to a serial COM port port on your computer which you need to set up in your software, in my case Writelog. That is all you need between the PK-232 and the computer. There is absolutely nothing hooked to the computer sound card. Actually, if you want the best of both worlds you can run an audio cable between the PK-232 or the radio and the computer's sound card line in jack, and use MMTTY as a second decoder. If you have room on your computer monitor's screen, you can watch both decoders (PK-232 and MMTTY) running in parallel - sometimes one copies when the other doesn't. I haven't done this with the K3 yet, but I have used this trick with other radios. You can either use a Y-connector at the radio or the PK-232, or if you connect the radio's line out to the PK-232's 5-pin connector (J4), you can connect a cable between the PK-232's phone jack (J3) and the sound card (the audio inputs on J3 and J4 are connected directly together, so in effect there is a Y-connector inside the PK-232). In addition to giving you two decoders, this also lets you use MMTTY's crossed-ellipse X-Y tuning display, which you may prefer to the PK-232's LED tuning indicator. You can configure the MMTTY X-Y display to rotate in the same direction as the radio's tuning knob, which seems to simplify the hand-eye coordination process while tuning in signals. 73, Rich VE3KI ___ 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 - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.19/1854 - Release Date: 12/17/2008 7:21 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
