Re: [Elecraft] K3 and amplifiers such as ALS-600
Is it best to use a buffer send/ptt device like the Ameritron ARB-704 with the K3? Howard -- View this message in context: http://n2.nabble.com/K3-and-amplifiers-such-as-ALS-600-tp3300117p3303890.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 and amplifiers such as ALS-600
No, you do not need it. I have an AL82 I am keying right out of the back of the K3. Works fine. Usually, it is a 12 volt time for keying the Ameritron Amps. I am not sure I would do that with just any old amp, but the Ameritrons use 12 volt keying line and not the 130 of the SB Line. Lee - K0Wa The New Kansas QSO Party - August 29, Sat 9am-9pm and August 30 Sun 9am-3pm CDT More Info at: http://www.ksqsoparty.org/ In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? From: HowardZ howa...@howardz.com To: elecraft@mailman.qth.net Sent: Wednesday, July 22, 2009 10:16:01 AM Subject: Re: [Elecraft] K3 and amplifiers such as ALS-600 Is it best to use a buffer send/ptt device like the Ameritron ARB-704 with the K3? Howard -- View this message in context: http://n2.nabble.com/K3-and-amplifiers-such-as-ALS-600-tp3300117p3303890.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 __ 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 and amplifiers such as ALS-600
Is it best to use a buffer send/ptt device like the Ameritron ARB-704 with the K3? Not necessary. The ALS-600 keying input has an open circuit voltage of 12VDC, and requires you to sink 100ma (or 70ma with the QSK mod) to key the amp. Easily handled by the K3 amp-key RCA output. If you have a new ALS-600, ALS-500 or ALS-1300 with the ARI-500 for auto-band switching, the K3 band data output works great. You do need the K3 TTL band data mod if you have an early K3 as the ARI-500 does not have pull-up resistors. The K3 TTL band data mod is also required for the THP HL-1.5 amp, but not for the HL-2.5 (the HL-2.5 has internal pull-up resistors). As I recall, the SPE EXPERT amp has internal pull-up resistors as well - but I'm not 100% certain about this. Phil - AD5X __ 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 and amplifiers such as ALS-600
HowardZ wrote: Is it best to use a buffer send/ptt device like the Ameritron ARB-704 with the K3? Howard Depends on the amp. ALS-600 - no Unmodified SB-200/220 - yes FL2100 - yes Basically put - check the voltage on the amp's relay line. If it is AC, or a higher voltage, or if it is higher current to pick the relay, than is specified in the K3 specs - use the ARB-704. And, yes, you can use the ARB-704 with any amp, even though it may not be needed. 73HankK8DD GET FREE SMILEYS FOR YOUR IM EMAIL - Learn more at http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® Messenger, ICQ®, Google TalkT and most webmails __ 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 and amplifiers such as ALS-600
One of frequent authors in QST runs ALS600 with K2/10. He removed most of the input resistors in ALS600 to boost amplification and runs almost full power with QRP drive. Probably the same can be done for for K3/10W. Ignacy, NO9E -- View this message in context: http://n2.nabble.com/K3-and-amplifiers-such-as-ALS-600-tp3300117p3305281.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 and amplifiers such as ALS-600
I had thought about that when I was about to order my K3 as a 10 watt version (to start). I turned my 746 down to 10 watts measured and my unmodified ALS500 put out 140 watts with 10 watts in (500 watts out with 100 in). That is what i intended to do until I could get the additional money for the PA. Amplifiers are not such that 100 = 500 so 10 = 50. Solid state at least, look at the charts for the 2 meter amps for instance) Doesn't work that way. 73, de Jim KG0KP - Original Message - From: Ignacy n...@arrl.net To: elecraft@mailman.qth.net Sent: Wednesday, July 22, 2009 2:23 PM Subject: Re: [Elecraft] K3 and amplifiers such as ALS-600 One of frequent authors in QST runs ALS600 with K2/10. He removed most of the input resistors in ALS600 to boost amplification and runs almost full power with QRP drive. Probably the same can be done for for K3/10W. Ignacy, NO9E -- View this message in context: http://n2.nabble.com/K3-and-amplifiers-such-as-ALS-600-tp3300117p3305281.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 __ 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 and amplifiers such as ALS-600
Amplifiers are not such that 100 = 500 so 10 = 50. Solid state at least, look at the charts for the 2 meter amps for instance) Doesn't work that way. _Linear_ amplifiers do hold true to the 100in=500out, so 10in=50out statement. If they are not linear amps, don't use them for anything other than CW and FM modes. Mark __ 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 and amplifiers such as ALS-600
MRF150 as used in ALS600 has 17db linear gain at 30MHz, and +20db on 20MHz and below. The gain is reduced to 9-11db across the bands by swamping the input and by some feedback. It can be recovered by using smaller or no input resistor and by removing or reducing the feedback with a risk of some instability. Apparently ALS 600 does not suffer from instability. The data sheet for MRF150 cites IMD3 at -32db in a circuit without any feedback. Linearity is another issue. Ignacy On Wed, Jul 22, 2009 at 4:07 PM, Mark Bayernm...@mlb.net wrote: Amplifiers are not such that 100 = 500 so 10 = 50. Solid state at least, look at the charts for the 2 meter amps for instance) Doesn't work that way. _Linear_ amplifiers do hold true to the 100in=500out, so 10in=50out statement. If they are not linear amps, don't use them for anything other than CW and FM modes. Mark __ 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 and amplifiers such as ALS-600
I was wondering if anyone has used the K3 with the Ameritron ALS-600. Any issues, gotchas, etc? Doug -- K0DXV __ 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 and amplifiers such as ALS-600
The ALS-600s works well with the K3 especially after doing the QSK mod. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=280375313067ssPageName=ADME:L:LCA:US:1123 Steve N4LQ n...@carolina.rr.com - Original Message - From: Doug Person d...@northroutt.net To: Elecraft Discussion List elecraft@mailman.qth.net Sent: Tuesday, July 21, 2009 2:13 PM Subject: [Elecraft] K3 and amplifiers such as ALS-600 I was wondering if anyone has used the K3 with the Ameritron ALS-600. Any issues, gotchas, etc? Doug -- K0DXV __ 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] K3 and amplifiers such as ALS-600
www.*ad5x.com*/presentations.htm http://www.ad5x.com/presentations.htm Phil has an excellent article! 73, Roger K7SJ On Tue, Jul 21, 2009 at 11:29 AM, Steve Ellington n...@carolina.rr.comwrote: The ALS-600s works well with the K3 especially after doing the QSK mod. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=280375313067ssPageName=ADME:L:LCA:US:1123 Steve N4LQ n...@carolina.rr.com - Original Message - From: Doug Person d...@northroutt.net To: Elecraft Discussion List elecraft@mailman.qth.net Sent: Tuesday, July 21, 2009 2:13 PM Subject: [Elecraft] K3 and amplifiers such as ALS-600 I was wondering if anyone has used the K3 with the Ameritron ALS-600. Any issues, gotchas, etc? Doug -- K0DXV __ 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] K3 and amplifiers such as ALS-600
Doug - I bought an older ALS-600 and put Phil Silas' QSK mod in it. It works beautifully. 60 watts' drive for full output. If I wanted to make it change bands from the K3, Ameritron tells me a $350 mod plus $119 interface would be needed. So you may want to look for a new or newer one with that circuitry already built-in. Monty K2DLJ I was wondering if anyone has used the K3 with the Ameritron ALS-600. Any issues, gotchas, etc? Doug -- K0DXV __ 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] K3 and amplifiers such as ALS-600
Monty, Actually, I have a new one. And I have an MFJ-994B auto-tuner in front of it. My current main rig is an Icom IC756Pro3 - which I love. I had an early K3 and when the economy tanked I had to sell it. Now that I'm back on a more even footing I decided I can't live without another K3. It should be here in a few days. I'm trying to work out how to get everything I have working now with the Pro3 to work with the K3. The Pro3 will probably go back in its box for a while. Doug -- K0DXV Monty Shultes wrote: Doug - I bought an older ALS-600 and put Phil Silas' QSK mod in it. It works beautifully. 60 watts' drive for full output. If I wanted to make it change bands from the K3, Ameritron tells me a $350 mod plus $119 interface would be needed. So you may want to look for a new or newer one with that circuitry already built-in. Monty K2DLJ I was wondering if anyone has used the K3 with the Ameritron ALS-600. Any issues, gotchas, etc? Doug -- K0DXV __ 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
