Re: [Elecraft] K3 and external receiver
On 10/31/2014 4:27 PM, LA7NO wrote: Thanks for the info. Unfortunately, I do not have the KXV3 option. So you need to add it. :) Easy to do -- just order it. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Questions
On 10/31/2014 9:19 AM, Phil Hystad wrote: But, if you are wanting to do weak signal work with CW, SSB, etc. then the 2M option is a very good cost item and worth the small increment of $. Yes, IF you can find a good amp that drives with the 3W or so that the 2M transverter produces. There was an '80s vintage Mirage 2W In, 150W out brick that did that, and I have one (but there's no way I'd sell it). :) 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Questions
All the TE Systems amps I have that are rated for ten watts input will develop full, or very close to full rated power output with 3 watts drive. 73, Charlie k3ICH - Original Message - From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Saturday, November 01, 2014 2:06 AM Subject: Re: [Elecraft] KX3 Questions On 10/31/2014 9:19 AM, Phil Hystad wrote: But, if you are wanting to do weak signal work with CW, SSB, etc. then the 2M option is a very good cost item and worth the small increment of $. Yes, IF you can find a good amp that drives with the 3W or so that the 2M transverter produces. There was an '80s vintage Mirage 2W In, 150W out brick that did that, and I have one (but there's no way I'd sell it). :) 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 Message delivered to pin...@erols.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Questions
Jim -- Definitely agree on the need for an amp with KX3 2-meter. I have posted, more than once, my Elecraft wish list item of a nice 2-meter amp. It just seems like something that would be easy for them to throw together. Otherwise, there are a few 2-meter amps I have been looking at but so far I have not needed one (mostly since my home brew 2-meter yagi is not anywhere near done yet). 73, phil, K7PEH On Oct 31, 2014, at 11:06 PM, Jim Brown j...@audiosystemsgroup.com wrote: On 10/31/2014 9:19 AM, Phil Hystad wrote: But, if you are wanting to do weak signal work with CW, SSB, etc. then the 2M option is a very good cost item and worth the small increment of $. Yes, IF you can find a good amp that drives with the 3W or so that the 2M transverter produces. There was an '80s vintage Mirage 2W In, 150W out brick that did that, and I have one (but there's no way I'd sell it). :) 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 Message delivered to phys...@mac.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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 IF Attenuation?
I've been using an AFEDRI SDR as a panadapter for my K3 for about a year now using HDSDR. I use it every day but when I powered things up yesterday, the panadapter connection has suddenly experienced a lot of attenuation. I don't know at this point if the issue is in the K3 IF output or the AFEDRI input. The AFEDRI has adjustable RF gain and I can still see the signals if I crank the RF gain to the max but I have lost on the order of 20 dB in the IF connection. (I normally run the AFEDRI with about 20 dB of gain but I have to crank it up to 40 dB now to see the signals from the K3). I've tried rebooting things and checked the first layer of things like the coax cable but I haven't found the cause of this big attenuation. I went into the K3 menu and toggled the KXV3 off and on but that didn't help either. Thought I would ask if anybody has experienced attenuation like this in the K3's IF output. Dave K8JDC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 IF Attenuation?
I should have mentioned that the K3's receive level is normal. Preamp is off and attenuator is off. S-meter levels on the K3 receiver are normal. The problem I'm seeing is only in the IF connection. Dave K8JDC On Sat, Nov 1, 2014 at 10:30 AM, Dave C k8j...@gmail.com wrote: I've been using an AFEDRI SDR as a panadapter for my K3 for about a year now using HDSDR. I use it every day but when I powered things up yesterday, the panadapter connection has suddenly experienced a lot of attenuation. I don't know at this point if the issue is in the K3 IF output or the AFEDRI input. The AFEDRI has adjustable RF gain and I can still see the signals if I crank the RF gain to the max but I have lost on the order of 20 dB in the IF connection. (I normally run the AFEDRI with about 20 dB of gain but I have to crank it up to 40 dB now to see the signals from the K3). I've tried rebooting things and checked the first layer of things like the coax cable but I haven't found the cause of this big attenuation. I went into the K3 menu and toggled the KXV3 off and on but that didn't help either. Thought I would ask if anybody has experienced attenuation like this in the K3's IF output. Dave K8JDC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Questions
One could always buy a Mitsubishi brick and put it in a case. RF parts or eBay: eBay item number:121444258503 $45 for a 30W out module fully assembled. Or $58 for 60W out. 50mW drive. Add an LPF, bypass switching and you are done. Normally set up for FM, they can be run linear by adjusting the gate voltage. Dale W4OP - Original Message - From: Phil Hystad phys...@mac.com To: j...@audiosystemsgroup.com Cc: elecraft@mailman.qth.net Sent: Saturday, November 01, 2014 9:56 AM Subject: Re: [Elecraft] KX3 Questions Jim -- Definitely agree on the need for an amp with KX3 2-meter. I have posted, more than once, my Elecraft wish list item of a nice 2-meter amp. It just seems like something that would be easy for them to throw together. Otherwise, there are a few 2-meter amps I have been looking at but so far I have not needed one (mostly since my home brew 2-meter yagi is not anywhere near done yet). 73, phil, K7PEH On Oct 31, 2014, at 11:06 PM, Jim Brown j...@audiosystemsgroup.com wrote: On 10/31/2014 9:19 AM, Phil Hystad wrote: But, if you are wanting to do weak signal work with CW, SSB, etc. then the 2M option is a very good cost item and worth the small increment of $. Yes, IF you can find a good amp that drives with the 3W or so that the 2M transverter produces. There was an '80s vintage Mirage 2W In, 150W out brick that did that, and I have one (but there's no way I'd sell it). :) 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 Message delivered to phys...@mac.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 Message delivered to pari...@frontier.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Questions
Another option for a tad more power is to roll you own. W6PQL had an article in the May 2013 issue of QST for building an 80 watt out all mode 2 meter amp: http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm He has a ton of other home brew projects on his web site. I built that amp this past spring and it works great. I made my own cabinet, but bought the board from him. The parts were obtained through various online retailers. It works great - I've used mine, driven by 5 watts from my K3, on CW, SSB, and FM. Just a thought. 73, Jim / W6JHB KX3# 5539, K3# 4359 On Saturday, Nov 1, 2014, at Saturday, 7:49 AM, Dale Parfitt pari...@frontier.com wrote: One could always buy a Mitsubishi brick and put it in a case. RF parts or eBay: eBay item number:121444258503 $45 for a 30W out module fully assembled. Or $58 for 60W out. 50mW drive. Add an LPF, bypass switching and you are done. Normally set up for FM, they can be run linear by adjusting the gate voltage. Dale W4OP - Original Message - From: Phil Hystad phys...@mac.com To: j...@audiosystemsgroup.com Cc: elecraft@mailman.qth.net Sent: Saturday, November 01, 2014 9:56 AM Subject: Re: [Elecraft] KX3 Questions Jim -- Definitely agree on the need for an amp with KX3 2-meter. I have posted, more than once, my Elecraft wish list item of a nice 2-meter amp. It just seems like something that would be easy for them to throw together. Otherwise, there are a few 2-meter amps I have been looking at but so far I have not needed one (mostly since my home brew 2-meter yagi is not anywhere near done yet). 73, phil, K7PEH On Oct 31, 2014, at 11:06 PM, Jim Brown j...@audiosystemsgroup.com wrote: On 10/31/2014 9:19 AM, Phil Hystad wrote: But, if you are wanting to do weak signal work with CW, SSB, etc. then the 2M option is a very good cost item and worth the small increment of $. Yes, IF you can find a good amp that drives with the 3W or so that the 2M transverter produces. There was an '80s vintage Mirage 2W In, 150W out brick that did that, and I have one (but there's no way I'd sell it). :) 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 Message delivered to phys...@mac.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 Message delivered to pari...@frontier.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 Message delivered to w6...@me.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 Message delivered to arch...@mail-archive.com
[Elecraft] FS: K2/10 KPA/KAT 100 in EC2 enclosure.
I'm downsizing since retirement earlier this year, will be on the road with the travel trailer. These item need a new home instead of sitting packed away. I have my KX3, PX3 along with the KXPA 100, it all fits nicely in the trailer. The K2, s/n 6576, was built in late 2011 by Dale Putnam WC7S, with the complete Rework Eliminator kit. Installed in it areK160RX, SSB option, Antenna tuner, KDSP2 filter with clock, KIO2 RS-232 interface, KBT2 battery kit, no battery.There's an unbuilt noise blanker. There's a weighted VFO knob installed, and an extra top cabinet panel with speaker installed. All the manuals included, along with a MH-2 hand mic and headset adapter. There's two unopened Rework Eliminator kits, KXPD1 clamp for the KX1 paddles to mount to the K2 bail, a cable for connecting the NUE-PSK modem (modem not included). In a separate enclosure is the KPA/KAT 100 amp/tuner with cables to hook to the K2. Both radio and amp are in great condition. Asking $1400.00 for the package, new this would cost almost $2400.00. Willing to sell separately, 850.00-K2, $550.00-KPA/KAT 100. I will double box and insure, and pay the shipping, only lower 48 thou, no overseas. Paypal, or money order works for me. You will get two boxes with the K2. As with all used electronic equipment, there's no return or refund. You will get working radios when they leave me. Contact me off-line at ekac...@yahoo.com or call my cell and leave a msg. 520-490-5395. ( I don't always hear the cell with my hearing aids) __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KPA500
I just purchased the entire K line. I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. It switches bands and it appears to be okay. But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. I must be missing something. Do I need to change any of the default settings on the KPA500 menu? On the back of the amplifier, I have the antenna in and out connected as well as the 9 pin cable from the AUX on the amp to the AVP on the KAT500. Thank for your help. Steve, KB3TAW __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500
But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. What do you mean by the above statement? What mode is the K3 set to? What happens when you do a key-down in CW mode? 73, phil, K7PEH On Nov 1, 2014, at 9:03 AM, Steve Lett st...@kb3taw.com wrote: I just purchased the entire K line. I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. It switches bands and it appears to be okay. But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. I must be missing something. Do I need to change any of the default settings on the KPA500 menu? On the back of the amplifier, I have the antenna in and out connected as well as the 9 pin cable from the AUX on the amp to the AVP on the KAT500. Thank for your help. Steve, KB3TAW __ 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 Message delivered to phys...@mac.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 Message delivered to arch...@mail-archive.com
[Elecraft] FS: K2/QRP (amp/tuner sold)
I'm downsizing since retirement earlier this year, will be on the road with the travel trailer. These item need a new home instead of sitting packed away. I have my KX3, PX3 along with the KXPA 100, it all fits nicely in the trailer. The K2, s/n 6576, was built in late 2011 by Dale Putnam WC7S, with the complete Rework Eliminator kit. Installed in it are K160RX, KSB2 SSB option, KAT2 Antenna tuner, KDSP2 filter with clock, KIO2 RS-232 interface, KBT2 battery kit, no battery.There's an unbuilt noise blanker. There's a weighted VFO knob installed, and an extra top cabinet panel with speaker installed. All the manuals included, along with a MH-2 hand mic and headset adapter. There's two unopened Rework Eliminator kits, KXPD1 clamp for the KX1 paddles to mount to the K2 bail. I'm asking $850.00, new $1690.00. I will double box and insure, and pay the shipping, only lower 48 thou, no overseas. Paypal, or money order works for me. As with all used electronic equipment, there's no return or refund. You will get working radios when they leave me. Contact me off-line at ekac...@yahoo.com mailto:ekac...@yahoo.com, or call my cell and leave a msg. 520-490-5395. ( I don't always hear the cell with my hearing aids) __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500
Curiously, I just yesterday fired up my new KPA500 (kit) and had a similar issue. I reached out to Elecraft but was away when the return call came through. I was sent a procedure for tuning the KAT500, which is hard to do when the K3 refuses to transmit. As it turns out, for reasons that escape me, TX INH was set Hi in my K3, despite me never (knowingly) have set it, since I have no transceivers. Go into the Config menu and dial up TX INH and make sure it's OFF. Wes N7WS On 11/1/2014 9:03 AM, Steve Lett wrote: I just purchased the entire K line. I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. It switches bands and it appears to be okay. But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. I must be missing something. Do I need to change any of the default settings on the KPA500 menu? On the back of the amplifier, I have the antenna in and out connected as well as the 9 pin cable from the AUX on the amp to the AVP on the KAT500. Thank for your help. Steve, KB3TAW __ __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500
You could possibly have reversed the RF in and out cables. I did this the first time I tested my homebrew 4CX1000A amplifier. Worth checking. On 1 Nov 2014 18:03, Steve Lett wrote: I just purchased the entire K line. I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. It switches bands and it appears to be okay. But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. I must be missing something. Do I need to change any of the default settings on the KPA500 menu? On the back of the amplifier, I have the antenna in and out connected as well as the 9 pin cable from the AUX on the amp to the AVP on the KAT500. Thank for your help. Steve, KB3TAW -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500
There should be a blocking adapter in the cable kit that should be attached on the K3 side of the AUX cable. This is used to block the INHIBIT# and other signals that should not actually go to the KPA from the K3. Some signals are already cut in the cable, but there are some that actually might be of use. INHIBIT# is one of them, but is very rarely used. Also, make sure that the INHIB IN entry in the KPA’s menu is set to DISABLE. While you are at it, make sure all the cables go where they are supposed to go. When in STBY, the KPA will show power out and SWR when power is above 25 watts. If you are not seeing this then make sure that you have the K3 output going into the KPA’s input. AND, make sure that you have that antenna output selected on the K3. - Jack B, W6FB On Nov 1, 2014, at 11:33 AM, Wes (N7WS) w...@triconet.org wrote: Curiously, I just yesterday fired up my new KPA500 (kit) and had a similar issue. I reached out to Elecraft but was away when the return call came through. I was sent a procedure for tuning the KAT500, which is hard to do when the K3 refuses to transmit. As it turns out, for reasons that escape me, TX INH was set Hi in my K3, despite me never (knowingly) have set it, since I have no transceivers. Go into the Config menu and dial up TX INH and make sure it's OFF. Wes N7WS On 11/1/2014 9:03 AM, Steve Lett wrote: I just purchased the entire K line. I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. It switches bands and it appears to be okay. But when I push the foot switch on my K3, the K3 transmits but the KPA500 is not producing any power or SWR. I must be missing something. Do I need to change any of the default settings on the KPA500 menu? On the back of the amplifier, I have the antenna in and out connected as well as the 9 pin cable from the AUX on the amp to the AVP on the KAT500. Thank for your help. Steve, KB3TAW __ __ 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 Message delivered to jackbrin...@me.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 Message delivered to arch...@mail-archive.com
[Elecraft] Odd Noise Located
Over the past few days I started to hear a random popcorn popping type noise on 160, MW and lower. I had never heard a noise like this one. I couldn't think of anything new around the house- and having no close in neighbors I was stumped. Interestingly, the only NB that 100% eliminated it was my bedside TenTec RX-325. But I digress. I took my KX-3 with a 24 whip on the BNC connector. AM mode on 160M and headphones. After eliminating any sources on the upper foors, I narrowed the search to my shop/lab. . More checking and I found a brand new LiPO charger that came with my new LED flashlight. I had forgotten I had even plugged it in. When the whip got close, the sound was deafening. The moral is- don't forget what's new in the house and the KX-3 makes a wonderful noise source detection tool. Dale W4OP __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] SSB net announcement
The weekly Elecraft SSB net is tomorrow at 1800Z on 14.3035 MHz. Don’t forget to set your clocks back an hour. The net follows UT. See you then 73, Phil, NS7P __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 fault at H44KW (no pwr high SWR)
Here's a funny story. Last week I ordered a KPA500. Two days later a nearby Ham dropped off his KPA500 that failed. His K3 was showing high SWR with no power. He purchased his a year ago and didn't want to pay the expense of shipping it back to the factory. I found a defective Q5 (see the TR switch schematic) on the Filter board. Q5, an IPA50R399P is a 550v MOS Power Transistor. My question is; Q4 a similar device (an IRFSL9N60A) with almost identical specifications except it's a 600V, MOS transistor. Can I use it as a replacement for an IPA50R399P? Jack WA9FVP Willco Electronics - Jack WA9FVP Sent from my TRS-80 :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-fault-at-H44KW-no-pwr-high-SWR-tp7570161p7594358.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500
On 11/1/2014 9:03 AM, Steve Lett wrote: I have the K3, P3 and KAT500 working just fine. I cannot get any power through the KPA500. You need a cable to put the KPA500 in TX mode. Two ways to do that, either one works fine. 1) an Aux Cable between the K3 and KPA500. 2) An RCA to RCA cable running the K3 to the KPA500. The AUX cable provides the additional function of bandswitching signals. But the KPA500 can bandswitch by detecting the frequency of RF input -- all it takes is a dit or a tap on the mic. So I use the RCA cable. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 fault at H44KW (no pwr high SWR)
Sure, as long as the pinouts are the same, and the voltage and current ratings meet your switching requirements. 73, Wayne N6KR On Nov 1, 2014, at 9:16 PM, wa9fvp rep...@willcoele.com wrote: Here's a funny story. Last week I ordered a KPA500. Two days later a nearby Ham dropped off his KPA500 that failed. His K3 was showing high SWR with no power. He purchased his a year ago and didn't want to pay the expense of shipping it back to the factory. I found a defective Q5 (see the TR switch schematic) on the Filter board. Q5, an IPA50R399P is a 550v MOS Power Transistor. My question is; Q4 a similar device (an IRFSL9N60A) with almost identical specifications except it's a 600V, MOS transistor. Can I use it as a replacement for an IPA50R399P? Jack WA9FVP Willco Electronics - Jack WA9FVP Sent from my TRS-80 :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-fault-at-H44KW-no-pwr-high-SWR-tp7570161p7594358.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 Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
