[Elecraft] KX-3 higher mic gain - perfect
Hi folks Latest firmware for KX-3 now has stacks of mic gain using cheap and cheerful computer type headsets. PTT is not used here, all VOX on SSB. Disable PTT and microphone bias. Appox 2.5 volts from the PTT line will power the element ok. There is very low level audio noise from the PTT supply but well down on normal speech. Mic Gain at approx 55. Processing at 12. My own preference is roll off the bass so set 100 200 400 TX filter at -16 and 800 at -3. Very strong audio on SSB. VOX function is very impressive. cheers Paul zl1ajy -- View this message in context: http://elecraft.365791.n2.nabble.com/KX-3-higher-mic-gain-perfect-tp7583259.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] RX Audio/AGC
This debate comes up way too often - so I rather think there is an inherent problem with the perceived comfort of the receive audio. First, I am a long-time Kenwood user and am very used to armchair copy - as most of my hamming is rag chew on 75 and 40 meters. To that end, I have spent too much money on speakers and too much time trying to get the K3 to sound as good as my TS-480 or a TS-590. That said, you can see the current settings I am using on my K3 at: http://www.w2blc.net/K3.htm The above captioned settings are not carved in stone and I tweak them often. Tweakability is one of the strong features of the K3. You can arrange the radio to suit your specific needs and desires - not just what some lab-rat decided at the manufacturer. Bill W2BLC K-Line (?) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] KRX3 low on gain
Hello. For a while now I've had the feeling that my sub-receiver has been a bit 'quiet', when compared to the main Rx, requiring its AF gain to be cranked up to compensate. However, I'd not really worried too much about this as its ability to hear weak signals was not impaired. Yesterday, I finally got round to measuring the audio levels coming out of my K3 and found the following: 1) The audio output of the KRX3 was -16dB compared with the main Rx (AGC inoperative, 5uV from signal generator). 2) The -16dB disparity was there regardless of which KRX3 antenna input was in use. 3) The problem is neither band nor mode dependant. 4) The problem occurs with both the 2.7kHz and 400Hz roofing filters. 4) When listening to a 'real' signal the KRX3 is operating lower down the AGC characteristic than the main Rx. 5) Adjusting the individual filter gains did not do enough to compensate. The fact that my KRX3 is not 'deaf', but just low on gain, suggests that its front-end is OK and that the fault is further down the chain. The AGC observations, in turn, suggest to me that the gain deficit is occurring after the front-end, but before the point at which AGC is derived (and not in the audio stages). I have already removed and re-installed the KRX3 and its leads, but to no effect. Before I resort to a serious stripping-down of the K3, does anyone have any experience of a similar fault, please? 73, de Phil, GJ4CBQ. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 7976
No luck is needed. Just follow the instructions and do what it says. Don't jump ahead, measure everything and don't assume. You are going to love this radio! Best Jerry, W1IE -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Carl Yaffey Sent: Thursday, January 23, 2014 19:28 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 7976 K3 7976 (kit) has arrived. Time to start building. Wish me luck. Carl Yaffey K8NU Banjo, guitar, bass, mandolin, dobro. recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 10 MHz IF for K3 Transverter Operation?
I've seen a couple of old posts concerning the addition of a 10 MHz IF for use with the K3 (and KXV3 option). Is this upgrade being worked at Elecraft? I operate my K3 using an external 10 MHz frequency reference. The 10 MHz IF capability would allow use of the same external 10 MHz reference as the LO for a transverter covering the 0 to 500 kHz spectrum. -Mike Mussler, AI8Z mmuss...@wispertel.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] 10 MHz IF for K3 Transverter Operation?
Mike, Not a 10 MHz IF, but provision for a 10 MHz reference INPUT to the K3. That is the K3EXREF External Reference Input for the K3. which allows the K3 to lock to an external 10 MHz reference standard. It is available as a K3 option. The KXV3 option *does* provide an IF output (at the 8 MHz IF frequency) for use with the P3 or other panadapter displays. That is also an option that can be purchased. Neither is an upgrade - options are add-ons, upgrades are changes to the existing hardware. 73, Don W3FPR On 1/24/2014 4:04 PM, Michael Mussler wrote: I've seen a couple of old posts concerning the addition of a 10 MHz IF for use with the K3 (and KXV3 option). Is this upgrade being worked at Elecraft? I operate my K3 using an external 10 MHz frequency reference. The 10 MHz IF capability would allow use of the same external 10 MHz reference as the LO for a transverter covering the 0 to 500 kHz spectrum. -Mike Mussler, AI8Z mmuss...@wispertel.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 2 dB better reception in JT65 mode
Hi guys. I have compared my brand new K3 against my IC756pro2 in JT65b mode while doing EME on 432 MHz. With the same transverter, antenna, preamp etc. I see stations 2 dB better with the K3. It also made me see another station at -30 dB that I could not detect on the 756. I just wonder, is this because the famous low noise architecture or just the clean audio of the K3? The K3 is connected via the line-out to a Delta44 soundcard at the PC. Audio levels have been carefully checked to be sure I am doing exactly the same to both rigs. The RF path 28 MHz 432 MHz was exactly the same all the time. I switched with relays between the rigs. Is there any other K3 owner who did the same test on here? 73, Peter PA2V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 10 MHz Transverter Band IF for K3
A clarification is in order concerning my earlier post. If not already available, I am requesting a K3 firmware revision that adds the selection of a 10 MHz IF for transverter operation (via the XVn IF CONFIG menu selection). In my application this added selection would allow use of the same external 10 MHz reference signal I use with my K3 for a stable and clean 630m transverter LO. -Mike Mussler AI8Z mmuss...@wispertel.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] 2 dB better reception in JT65 mode
Peter, I would attribute it to the superior dynamic range of the K3. I have not done similar tests. 73, Don W3FPR On 1/24/2014 5:01 PM, PA2V wrote: Hi guys. I have compared my brand new K3 against my IC756pro2 in JT65b mode while doing EME on 432 MHz. With the same transverter, antenna, preamp etc. I see stations 2 dB better with the K3. It also made me see another station at -30 dB that I could not detect on the 756. I just wonder, is this because the famous low noise architecture or just the clean audio of the K3? The K3 is connected via the line-out to a Delta44 soundcard at the PC. Audio levels have been carefully checked to be sure I am doing exactly the same to both rigs. The RF path 28 MHz 432 MHz was exactly the same all the time. I switched with relays between the rigs. Is there any other K3 owner who did the same test on here? 73, Peter PA2V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] 10 MHz Transverter Band IF for K3
We've heard this from several customers, now, so it has moved up the list. 73, Wayne N6KR On Jan 24, 2014, at 2:27 PM, Michael Mussler mmuss...@wispertel.net wrote: A clarification is in order concerning my earlier post. If not already available, I am requesting a K3 firmware revision that adds the selection of a 10 MHz IF for transverter operation (via the XVn IF CONFIG menu selection). In my application this added selection would allow use of the same external 10 MHz reference signal I use with my K3 for a stable and clean 630m transverter LO. -Mike Mussler AI8Z mmuss...@wispertel.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 10 MHz Transverter Band IF for K3
Hi, I would like to have this also for my KX3. I am using my KX3 with a transverter for 630m. It would be nice to have the display showing 0.475 instead of 10.475. 73 de Hans, DF5SR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 to KAT500
If I buy a K3/100 without auto tuner and a KAT500 is there any additional cable I need (other than coax) to connect the two together? or does KAT500 come with all cable beeded to connect it to the K3? I see a cable for KAT500 to KPA500 but not to the K3. Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? I hope to be able to make an order soon. Thanks 73 - Tom - wa4ta __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 to KAT500
On 1/24/2014 3:52 PM, tom armour wrote: If I buy a K3/100 without auto tuner and a KAT500 is there any additional cable I need (other than coax) to connect the two together? Some folks feel the need for an AUX cable to tell the KAT500 what band it is on. I don't, because the KAT500 has a very fast frequency counter that can figure that out with a short burst of RF. or does KAT500 come with all cable beeded to connect it to the K3? Yes. I see a cable for KAT500 to KPA500 but not to the K3. Yes. To prevent damage to its relays, the KAT500 must be able to interrupt the keying line to any power amp that is used. It has an RCA input, and an RCA output. So ONLY if you're running an amp, you need an RCA-RCA between rig and KAT500, and another between KAT500 and power amp PTT. Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? QRP autotune -- the KAT500 is optimized for high power, and doesn't autotune very well below about 10W. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 to KAT500
The internal tuner is MUCH quieter if that is a factor (mouse vs elephant). It also provides a slightly better match (not quite the same component values) and seems faster than the KAT500 for tuning (I haven't measured it). The internal tuner has no issues with my EDZ dipole (two opposing 5/8 at 75M) on any band; the KAT500 has troubles on 75 and 160 (antenna is too reactive). If you EVER plan on taking the K3 anywhere, having an internal tuner means you can operate without having to take the KAT500 et al as well. 73, Rick wa6nhc -Original Message- From: Jim Brown On 1/24/2014 3:52 PM, tom armour wrote: Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? QRP autotune -- the KAT500 is optimized for high power, and doesn't autotune very well below about 10W. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 to KAT500
Apart from Jim's advice below, I would supplement as follows: 1. If you have no intention to take K3 as portable use or your K3 is a station rig, I would go for KAT500. This will give you the future liberty of buying a KPA500 or other linear amplifier. 2. Once you have a linear, the internal KAT3 tuner will become redundant. In fact, I sold the KAT3 to subsidize the purchase of KAT500. I am using KX3 for portable use. 73 Johnny VR2XMC 寄件人︰ Jim Brown j...@audiosystemsgroup.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2014年01月25日 (週六) 8:04 AM 主題︰ Re: [Elecraft] K3 to KAT500 On 1/24/2014 3:52 PM, tom armour wrote: If I buy a K3/100 without auto tuner and a KAT500 is there any additional cable I need (other than coax) to connect the two together? Some folks feel the need for an AUX cable to tell the KAT500 what band it is on. I don't, because the KAT500 has a very fast frequency counter that can figure that out with a short burst of RF. or does KAT500 come with all cable beeded to connect it to the K3? Yes. I see a cable for KAT500 to KPA500 but not to the K3. Yes. To prevent damage to its relays, the KAT500 must be able to interrupt the keying line to any power amp that is used. It has an RCA input, and an RCA output. So ONLY if you're running an amp, you need an RCA-RCA between rig and KAT500, and another between KAT500 and power amp PTT. Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? QRP autotune -- the KAT500 is optimized for high power, and doesn't autotune very well below about 10W. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 Audio control scratchy throughout the range
I inherited a second K2. It is serial number 85 and works very well except the volume control is noisy and erratic throughout its range. Do I need to do anything other than replace the pot? I know there were other mods for the volume control and its circuit, but I believe it was because of noise only on the low end of the range. I think this pot is just plain old and the radio sat unused for the last seven years. Thanks! Andy W9NJY Milwaukee __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 to KAT500
ThanksGreat input so far!It is really helping me finalize my decision. A few more notes/questions:I have an old tube amp (fl-2100) that does about 600w max I intend to use until I get the money together for a KPA500. I currently use a manual tuner that I could potentially put in line if I want to run QRP.I do not intend to move the K3 a lot. I have another radio I can use portable. With the old amp should I have an AUX cable? or is the RCA cables Rig-KAT500-Amp enough? 73 - Tom - wa4ta Date: Sat, 25 Jan 2014 09:27:07 +0800 From: vr2...@yahoo.com.hk To: elecraft@mailman.qth.net Subject: [Elecraft] K3 to KAT500 Apart from Jim's advice below, I would supplement as follows: 1. If you have no intention to take K3 as portable use or your K3 is a station rig, I would go for KAT500. This will give you the future liberty of buying a KPA500 or other linear amplifier. 2. Once you have a linear, the internal KAT3 tuner will become redundant. In fact, I sold the KAT3 to subsidize the purchase of KAT500. I am using KX3 for portable use. 73 Johnny VR2XMC 寄件人︰ Jim Brown j...@audiosystemsgroup.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2014年01月25日 (週六) 8:04 AM 主題︰ Re: [Elecraft] K3 to KAT500 On 1/24/2014 3:52 PM, tom armour wrote: If I buy a K3/100 without auto tuner and a KAT500 is there any additional cable I need (other than coax) to connect the two together? Some folks feel the need for an AUX cable to tell the KAT500 what band it is on. I don't, because the KAT500 has a very fast frequency counter that can figure that out with a short burst of RF. or does KAT500 come with all cable beeded to connect it to the K3? Yes. I see a cable for KAT500 to KPA500 but not to the K3. Yes. To prevent damage to its relays, the KAT500 must be able to interrupt the keying line to any power amp that is used. It has an RCA input, and an RCA output. So ONLY if you're running an amp, you need an RCA-RCA between rig and KAT500, and another between KAT500 and power amp PTT. Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? QRP autotune -- the KAT500 is optimized for high power, and doesn't autotune very well below about 10W. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 to KAT500
Tom, KAT500 has built-in internal frequency counter for auto band switching. The supplied cable with KAT500 will be good enough. The aux cable will be more useful if you eventually have the KPA500. I suggest you download the operation manual of KAT500. There are connection diagram inside the manual which will give you very good ideas. 73 Johnny Vr2XMC 寄件人︰ tom armour wa...@hotmail.com 收件人︰ elecraft@mailman.qth.net elecraft@mailman.qth.net 傳送日期︰ 2014年01月25日 (週六) 10:27 AM 主題︰ Re: [Elecraft] K3 to KAT500 ThanksGreat input so far!It is really helping me finalize my decision. A few more notes/questions:I have an old tube amp (fl-2100) that does about 600w max I intend to use until I get the money together for a KPA500. I currently use a manual tuner that I could potentially put in line if I want to run QRP.I do not intend to move the K3 a lot. I have another radio I can use portable. With the old amp should I have an AUX cable? or is the RCA cables Rig-KAT500-Amp enough? 73 - Tom - wa4ta Date: Sat, 25 Jan 2014 09:27:07 +0800 From: vr2...@yahoo.com.hk To: elecraft@mailman.qth.net Subject: [Elecraft] K3 to KAT500 Apart from Jim's advice below, I would supplement as follows: 1. If you have no intention to take K3 as portable use or your K3 is a station rig, I would go for KAT500. This will give you the future liberty of buying a KPA500 or other linear amplifier. 2. Once you have a linear, the internal KAT3 tuner will become redundant. In fact, I sold the KAT3 to subsidize the purchase of KAT500. I am using KX3 for portable use. 73 Johnny VR2XMC 寄件人︰ Jim Brown j...@audiosystemsgroup.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2014年01月25日 (週六) 8:04 AM 主題︰ Re: [Elecraft] K3 to KAT500 On 1/24/2014 3:52 PM, tom armour wrote: If I buy a K3/100 without auto tuner and a KAT500 is there any additional cable I need (other than coax) to connect the two together? Some folks feel the need for an AUX cable to tell the KAT500 what band it is on. I don't, because the KAT500 has a very fast frequency counter that can figure that out with a short burst of RF. or does KAT500 come with all cable beeded to connect it to the K3? Yes. I see a cable for KAT500 to KPA500 but not to the K3. Yes. To prevent damage to its relays, the KAT500 must be able to interrupt the keying line to any power amp that is used. It has an RCA input, and an RCA output. So ONLY if you're running an amp, you need an RCA-RCA between rig and KAT500, and another between KAT500 and power amp PTT. Is there anything I'll be missing with the KAT500 vs the internal tuner other than portability? QRP autotune -- the KAT500 is optimized for high power, and doesn't autotune very well below about 10W. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] W2 wattmeter not reading xv50 output
On 1/24/2014 02:44, John Marvin wrote: 1) ... Did you take note of SWR and reverse power using the W2 utility? 1.5:1 2) Did you build your XV50 or did you get a factory built version? W3FPR built and calibrated it. Final question. How were you generating the test signal and what mode were you using? A paddle and in CW mode -- Bob KD7YZ http://www.qrz.com/db/KD7YZ www.denstarfarm.us/LGD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 to KAT500
On 1/24/2014 6:27 PM, tom armour wrote: With the old amp should I have an AUX cable? or is the RCA cables Rig-KAT500-Amp enough? That's what you MUST use. I don't know anything about PTT for that particular amplifier, so you should investigate voltage and current to make sure it's OK with the K3. Most modern amps are. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 Push To Talk
Has anyone come up with a simple fix to add an external PTT line to the K2? I recently picked up a used K2 and just completed building a 222 transverter. I didn't realize that the K2 does not have a Transmit/Receive switch. So, I will be hot switching, in CW mode. WSJT is not a problem as there is a built in delay between when PTT and audio is outputted. An external sequencer won't help as I can't get control of the K2 PTT line in CW mode. Any ideas besides W3FPR's fix? http://www.w3fpr.com/ptt_input_for_the_elecraft_k2.htm Thanks, Lloyd K8DIO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 Push To Talk
Lloyd, If you don't like my fix for this situation, you can use a footswitch to activate your amp and switch your preamp off-line before hitting the paddles - just don't make any mistakes and get things in the wrong order. I have not seen anything comparable to my solution. It was intended specifically for those using VHF gear with the K2. 73, Don W3FPR On 1/24/2014 11:12 PM, Lloyd Korb wrote: Has anyone come up with a simple fix to add an external PTT line to the K2? I recently picked up a used K2 and just completed building a 222 transverter. I didn't realize that the K2 does not have a Transmit/Receive switch. So, I will be hot switching, in CW mode. WSJT is not a problem as there is a built in delay between when PTT and audio is outputted. An external sequencer won't help as I can't get control of the K2 PTT line in CW mode. Any ideas besides W3FPR's fix? http://www.w3fpr.com/ptt_input_for_the_elecraft_k2.htm Thanks, __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 Audio control scratchy throughout the range
Andy, Replace the AF Gain pot and install the Alternate AF Gain Wiring Mod http://www.elecraft.com/Apps/K2_AF_pot/K2_AF_gain_app_note.htm. 73, Don W3FPR On 1/24/2014 9:03 PM, Andrew Catanzaro wrote: I inherited a second K2. It is serial number 85 and works very well except the volume control is noisy and erratic throughout its range. Do I need to do anything other than replace the pot? I know there were other mods for the volume control and its circuit, but I believe it was because of noise only on the low end of the range. I think this pot is just plain old and the radio sat unused for the last seven years. Thanks! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] semi delay
Hi, I'm working the 160M CW contest and I'd like to lengthen the time of the semi setting. The QSK full is perfect for QSK but when I'm sending at 28 WPM or so in the semi setting, the relay in the amp is still triggering as I send. I'd like to make the delay be a bit longer. In other words, I'd like to set the semi to make it so I hear nothing while I send, it's too close to full QSK. How do I adjust this to my liking? Thanks! Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] semi delay
Oh for goodness sakes, I don't know how I missed how to do that but I got it. Sorry for the interruption... 73 Gary Hi, I'm working the 160M CW contest and I'd like to lengthen the time of the semi setting. The QSK full is perfect for QSK but when I'm sending at 28 WPM or so in the semi setting, the relay in the amp is still triggering as I send. I'd like to make the delay be a bit longer. In other words, I'd like to set the semi to make it so I hear nothing while I send, it's too close to full QSK. How do I adjust this to my liking? Thanks! Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
