[Elecraft] remote kpa100
I run the kpa remote, in the EC2 case with the kat100 100 watt tuner. Seems to be a real neat setup! Brett N2DTS __ 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] Remote KPA100 Summary
--- David Toepfer [EMAIL PROTECTED] I was wondering how I could build a K2 and keep it light and QRP portable without having to actually remove the amp every time I wanted to move it. Puting a KPA100 and a KAT100-2 in EC2 case, is that possible? --- Bill Flynn AIØC [EMAIL PROTECTED] Lyle Johnson, KK7P (ex-WA7GXD), has done this. He's written it all up on an excellent Web page that you can view at http://www.fidalgo.net/~wa7gxd/k2kpa100.html. --- Paul Clay [EMAIL PROTECTED] Has anyone implemented Lyle Johnson's (KK7P's) suggested method (see http://www.fidalgo.net/~wa7gxd/k2kpa100.html#NOKIO2) of running a K2 and KAT-100 combo without an installed KIO2 (or KPA-100)? --- Sverre Holm [EMAIL PROTECTED] The question of the KPA-100 external to the K2 surfaces from time to time, and there are two descriptions of how it can be done. To find them you may check the Unofficial K2 Modifications page at www.qsl.net/la3za/K2/mod.html, go to General mods and then KPA100. --- Tom Hammond [EMAIL PROTECTED] Please visit: http://www.fidalgo.net/~wa7gxd/k2kpa100.html For (I think) all the info you should require on this subject --- Don Wilhelm [EMAIL PROTECTED] Yes, it IS do-able and has been done. In fact, I just received my EC2 enclosure and am about to do it myself. Check out http://www.fidalgo.net/~wa7gxd/k2kpa100.html to see how. In addition to the external enclosure, you will need the KIO2 option in your base K2 so it can communicate with the external KPA100. --- Bob Nielsen [EMAIL PROTECTED] Is it recommended to integrate the KPA100 with the K2 and get it all working together before remoting it in the EC2? --- Lyle Johnson [EMAIL PROTECTED] In the initial KPA-100 checkout, I had mine laying upside-down on a thick book (must have been a Windows tome...) with the cables plugged into the open-top K2. Once the KPA100 is checked out in this fashion, cal done, etc., I don't think it matters which box you put it in. --- Eric Manning [EMAIL PROTECTED] YES! That way, if any little glitches pop up when you remote the KPA-100, you can eliminate a lot of possibilities up front. For instance, if there are communication problems when it's remoted but it's OK when in the single box, you can focus on the RS-232 path between the two microprocessors . It's just the same principle of building a piece of the kit, then testing it before building any more, which Elecraft always follows. --- [EMAIL PROTECTED] My question for those who have gone through this is if there is a recommended order of construction that makes integration and/or check-out of the various components easieror more logical. --- Lyle Johnson [EMAIL PROTECTED] Yes, 1) Build the KPA-100 into the K2 and see that it works. 2) Build the KAT-100 in the EC2 case, connect it to the K2/100, and see that it works. 3) Build the KIO2, remove the KPA-100, and verify the K2/KAT-100 combination works. 4) Put the KPA-100 into the EC2 with the KAT-100 and verify it all works. --- Don Wilhelm [EMAIL PROTECTED] Yes, do the KIO2 first, but check out the instructions for mounting the KPA100 in the EC2 while you are building it - the inductors on the KIO2 connector/header board must be changed to toroids or other chokes that will carry the additional current. Other than that, I can think of no other particular order, but you may want to build the KPA100 before the KAT100 so you can check out the tuner at full power. --- Bill Acito W1PA [EMAIL PROTECTED] fyi, consensus (6 or 7 emails) seemed to be if you want to swap back and forth from a QRP to the 100W version of the K2, then mounting the KPA100 (and KAT100) in a seperate EC2 is the way to go. Most (not all) who responded found swapping the lids tedious, and dangerous (possibly dropping a heavy lid into the K2) --- Bill Acito W1PA [EMAIL PROTECTED] Yes, and was still described as faster and safer. http://www.qsl.net/la3za/K2/modAny.html#KPA100 --- JEAN-FRANCOIS MENARD [EMAIL PROTECTED] Now I have updated my website about building a KPA100 and KAT100 in the same enclosure, as advertised by Elecraft with the KAT100-2. See my link: http://homepage.mac.com/jfmenard/PhotoAlbum29.html Comments or questions are welcome !!! [...] --- Bob Nielsen [EMAIL PROTECTED] You will need a KIO in addition to the EC2, KPA100 and KAT100-2. You can find full information on KK7P's website at http://www.fidalgo.net/~wa7gxd/k2kpa100.html. --- Jean-François Ménard [EMAIL PROTECTED] [See] my website for photos http://homepage.mac.com/jfmenard/PhotoAlbum29.html --- Vic Rosenthal [EMAIL PROTECTED] See http://www.kk7p.com/k2kpa100.html and http://home.pacbell.net/johngreb/k2_100_in_ec2.pdf ___ 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
[Elecraft] remote KPA100 summary
--- David Toepfer [EMAIL PROTECTED] I was wondering how I could build a K2 and keep it light and QRP portable without having to actually remove the amp every time I wanted to move it. Puting a KPA100 and a KAT100-2 in EC2 case, is that possible? --- Bill Flynn AIØC [EMAIL PROTECTED] Lyle Johnson, KK7P (ex-WA7GXD), has done this. He's written it all up on an excellent Web page that you can view at http://www.fidalgo.net/~wa7gxd/k2kpa100.html. --- Paul Clay [EMAIL PROTECTED] Has anyone implemented Lyle Johnson's (KK7P's) suggested method (see http://www.fidalgo.net/~wa7gxd/k2kpa100.html#NOKIO2) of running a K2 and KAT-100 combo without an installed KIO2 (or KPA-100)? --- Sverre Holm [EMAIL PROTECTED] The question of the KPA-100 external to the K2 surfaces from time to time, and there are two descriptions of how it can be done. To find them you may check the Unofficial K2 Modifications page at www.qsl.net/la3za/K2/mod.html, go to General mods and then KPA100. --- Tom Hammond [EMAIL PROTECTED] Please visit: http://www.fidalgo.net/~wa7gxd/k2kpa100.html For (I think) all the info you should require on this subject --- Don Wilhelm [EMAIL PROTECTED] Yes, it IS do-able and has been done. In fact, I just received my EC2 enclosure and am about to do it myself. Check out http://www.fidalgo.net/~wa7gxd/k2kpa100.html to see how. In addition to the external enclosure, you will need the KIO2 option in your base K2 so it can communicate with the external KPA100. --- Bob Nielsen [EMAIL PROTECTED] Is it recommended to integrate the KPA100 with the K2 and get it all working together before remoting it in the EC2? --- Lyle Johnson [EMAIL PROTECTED] In the initial KPA-100 checkout, I had mine laying upside-down on a thick book (must have been a Windows tome...) with the cables plugged into the open-top K2. Once the KPA100 is checked out in this fashion, cal done, etc., I don't think it matters which box you put it in. --- Eric Manning [EMAIL PROTECTED] YES! That way, if any little glitches pop up when you remote the KPA-100, you can eliminate a lot of possibilities up front. For instance, if there are communication problems when it's remoted but it's OK when in the single box, you can focus on the RS-232 path between the two microprocessors . It's just the same principle of building a piece of the kit, then testing it before building any more, which Elecraft always follows. --- [EMAIL PROTECTED] My question for those who have gone through this is if there is a recommended order of construction that makes integration and/or check-out of the various components easieror more logical. --- Lyle Johnson [EMAIL PROTECTED] Yes, 1) Build the KPA-100 into the K2 and see that it works. 2) Build the KAT-100 in the EC2 case, connect it to the K2/100, and see that it works. 3) Build the KIO2, remove the KPA-100, and verify the K2/KAT-100 combination works. 4) Put the KPA-100 into the EC2 with the KAT-100 and verify it all works. --- Don Wilhelm [EMAIL PROTECTED] Yes, do the KIO2 first, but check out the instructions for mounting the KPA100 in the EC2 while you are building it - the inductors on the KIO2 connector/header board must be changed to toroids or other chokes that will carry the additional current. Other than that, I can think of no other particular order, but you may want to build the KPA100 before the KAT100 so you can check out the tuner at full power. --- Bill Acito W1PA [EMAIL PROTECTED] fyi, consensus (6 or 7 emails) seemed to be if you want to swap back and forth from a QRP to the 100W version of the K2, then mounting the KPA100 (and KAT100) in a seperate EC2 is the way to go. Most (not all) who responded found swapping the lids tedious, and dangerous (possibly dropping a heavy lid into the K2) --- Bill Acito W1PA [EMAIL PROTECTED] Yes, and was still described as faster and safer. http://www.qsl.net/la3za/K2/modAny.html#KPA100 --- JEAN-FRANCOIS MENARD [EMAIL PROTECTED] Now I have updated my website about building a KPA100 and KAT100 in the same enclosure, as advertised by Elecraft with the KAT100-2. See my link: http://homepage.mac.com/jfmenard/PhotoAlbum29.html Comments or questions are welcome !!! [...] --- Bob Nielsen [EMAIL PROTECTED] You will need a KIO in addition to the EC2, KPA100 and KAT100-2. You can find full information on KK7P's website at http://www.fidalgo.net/~wa7gxd/k2kpa100.html. --- JEAN-FRANCOIS MENARD [EMAIL PROTECTED] Add to Address BookAdd to Address Book If you need more photos of that setup, look at my website... I did thing setup 2 weeks ago. Very easy with the latest version of the KAT-100-2. http://homepage.mac.com/jfmenard ___ 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
[Elecraft] remote KPA100
OK, this may be a silly question but... Why do I need a KIO to run the KPA100 remotely? In my case, I just want to have the PA in a seperate enclosure to keep it in a better ventilated area of my congestion (maybe 2 or 3 feet away from the K2). Is this too long of a run for the I/O cable or RF? Cheers from sunny Oak Ridge, Julius n2wn ___ 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] remote KPA100
I believe on one of the sites listed there is schematic describing how to get around buying a KIO2. Don't recall which. That's my recollection at least. dt . --- J F [EMAIL PROTECTED] wrote: OK, this may be a silly question but... Why do I need a KIO to run the KPA100 remotely? In my case, I just want to have the PA in a seperate enclosure to keep it in a better ventilated area of my congestion (maybe 2 or 3 feet away from the K2). Is this too long of a run for the I/O cable or RF? Cheers from sunny Oak Ridge, Julius n2wn ___ 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] remote KPA100
OK, this may be a silly question but... Why do I need a KIO to run the KPA100 remotely? The auxbus must be connected between the K2 and the KPA100. The auxbus is conveniently brought out on the KIO2. 73, Lyle KK7P ___ 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] remote KPA100
Hi The KIO2 is required in the QRP K2 to supply the interface signals for the KPA100. This is the auxbus, 12 volt switched, 8R signals. It is possible to build a cable from the control board to a 9 pin connector to provide these signals but you will need to duplicate the RF bypassing used on the KIO2. The best solution is to just add the KIO2 to the K2 QRP top to provide the signals. All you need to connect the two boxes is a 9 pin D connector cable with the bottom 4 pins connected and a ground to pin 1. A BNC to BNC for the RF and a power cable for the K2 and KPA100. If you do not have the KAT100 installed in the box with the KPA100 then you will need to drill a hole in the lower back panel for a chassis mount BNC connector and provide a connector inside for the KPA100 RF connector. If you have the KAT100-2 then the connectors are included on the KAT100 board. If you have the KAT100 then you will also need a short PL259 to PL259 cable to connect the KPA100 to the KAT100 Don Brown - Original Message - From: J Fmailto:[EMAIL PROTECTED] To: elecraft@mailman.qth.netmailto:elecraft@mailman.qth.net Sent: Wednesday, September 22, 2004 11:48 AM Subject: [Elecraft] remote KPA100 OK, this may be a silly question but... Why do I need a KIO to run the KPA100 remotely? In my case, I just want to have the PA in a seperate enclosure to keep it in a better ventilated area of my congestion (maybe 2 or 3 feet away from the K2). Is this too long of a run for the I/O cable or RF? Cheers from sunny Oak Ridge, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.netmailto: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/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htmhttp://mailman.qth.net/subscribershtm Elecraft web page: http://www.elecraft.comhttp://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] remote KPA100
Julius, Easy answer (but not really 'silly') - the KPA100 has no bandswitch or other controls - it gets its information from the K2, so the K2 must have a path to communicate with the KPA100. There are 4 signal lines on the KIO2 connector that contain the signals required. I might point out that the presence of these signals IS the reason one should NEVER connect a regular 'computer' serial cable directly to the K2 KIO2 connector - it will cause REALLY BAD things to happen to the K2 if RS-232 level voltages are applied to these 4 pins. A 2 to 3 foot cable should be no problem - if I recall, KI6WX tested with a 10 foot cable. Also, plan to replace the minature 15 uH inductor on the KIO2 AUX2 board with one that can handle more current. Any 15 uH choke rated for about 100 ma should do nicely, or wind your own on a FT23-43 core (9 turns = 15 uH) or a FT37-43 core (6 turns = 15 uH) - the wire size is not critical, use the leftovers from your K2 build. 73, Don W3FPR - Original Message - OK, this may be a silly question but... Why do I need a KIO to run the KPA100 remotely? In my case, I just want to have the PA in a seperate enclosure to keep it in a better ventilated area of my congestion (maybe 2 or 3 feet away from the K2). Is this too long of a run for the I/O cable or RF? ___ 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
