[Elecraft] KPA 500

I have a strange fault a couple of times recently, where the SWR starts to increase during the time of a single 'over'. I've been using the K3S set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, without any problem, but after I've switched the linear to Operate and driving it

[Elecraft] KPA 500

"After transmitting at 200W the temperature slowly rises above 60 degrees C, but the fan doesn't cut in. Does anyone know if this is normal behavior and what temperatures I should expect to see?" Nominal temperature for start of fan speed 1 is 50 deg C although my data for one test run showed s

[Elecraft] KPA 500

Unit was sold __ 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 thi

[Elecraft] KPA 500

The unit was sold. AD2F John __ 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

[Elecraft] KPA 500

What is the advantage of using a band switching cable between the transceiver and the KPA500 over just relying on the RF sensing function? I want to drive my KPA500 from an FTDX 101D, is a cable the better way to go? 73 F5VJC __ Elecraft

[Elecraft] KPA 500

KPA500.   Sure is a sweet and reliable system.  Hard to screw up anything. 73 Bob, K4TAX On 3/23/2022 2:14 PM, elecraft-requ...@mailman.qth.net wrote: Message: 6 Date: Tue, 22 Mar 2022 10:24:59 +0100 From: F5vjc To: Elecraft Reflector Subject: [Elecraft] KPA 500 Message-ID: Content

[Elecraft] KPA 500

"It’s also worth mentioning that if the radio and the amp are hard wired together, changing the band using the buttons on the front of the amp automatically changes the band on the radio." It should be possible to disable the KPA 500 band buttons but it isn't. They are a "bandaid" for the lack

[Elecraft] KPA 500

Hello Elecrafters,, Have any of you an KPA 500 for sale ? If KIT (never build) also of interest. 73' Viggo LA9NEA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Po

[Elecraft] KPA 500

I recently say a listing for a used KPA500. I managed to lose the info. If it's still availably could you please let me have the info. I'm very interested. Pete Block W2MGE pete_bl...@comcast.net Thanks. _

[Elecraft] KPA 500

Hello. During operation with a high SWR and low power I heard a strong bang and the KPA500 shut off. I have opened the upper panel and found 2 ceramic caps of VRF2933. The inner side of the plastic cover is blackened Looks that the power supply is working I read 74.6 volt on the voltage display

[Elecraft] KPA 500

Does anyone know if the KPA 500 has a built in power supply ? Barry Simpson VK2BJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qt

[Elecraft] KPA 500

I guess because I'm a DXer more than contester [ a lot more] I don't see the need for a coax melting amp. I see 5-600 W as just about right. There are amps on the market that brag they give you an easy KW. What they're really saying is this baby will go 2+ with a bit of a push. That's DC out.

[Elecraft] KPA 500

I know some guys are reporting seeing them at hamfests. Maybe I've missed it but is there an actual date they may be on the market? It's not the end of the world, I'm just wondering when K9IL __ Elecraft mailing list Home: http://mai

[Elecraft] KPA 500

Eric.Wayne, Will you be offering an accompanying outboard ATU for the KPA500 in the same time frame or near it? That will be a factor in my decision to buy one early on. TNX es 73 de N1LQ-Dave __ Elecraft mailing list Home: http://m

[Elecraft] KPA 500

Hi Wayne, Excellent news on the developing KATU-500 or whatever it will be called. Thanks for the quick reply. I see this pair in my future. Savings my $.01's 73 de N1LQ-Dave __ Elecraft mailing list Home: http://mailman.qth.net/ma

[Elecraft] KPA 500

range of effectively over $2,000, you are given the chance to option for better screws. 73 Johnny VR2XMC 寄件人﹕ Ian White GM3SEK 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2010/10/19 (二) 4:21:31 PM 主題： Re: [Elecraft] KPA 500 Wayne Burdick wrote: >Very rugged re

[Elecraft] KPA-500

Seasons Greetings, Is there any further word on a possible release date/month for the 'new' tuner? Just curious as I could sure use one to make portable set-up a little easier for me. Regards Gary -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679, P3 #546 For everything else

[Elecraft] kpa 500

Has anybody heard how much power out the k3/10 will drive the kpa500 amp to? As mostly a qrper it might be nice to have a lil juice once in a while. I can get 12w max out of my k3/10 and was hoping since the kpa500 is a solid state amp, I might get 400-500 watts out of it with 12 watts o

[Elecraft] KPA-500

This is interesting. From this statement it appears the KPA-500 will not be in the circuit until the K3 power level is at 12 or greater watts. Is this correct? Thanks, Roy Morris W4WFB Presumably 12 watts is fine with the K3 since that's where the KPA500 switches in! Ron AC7AC ___

[Elecraft] KPA-500

All of this talk about the KPA-500 has gotten me fired up about it again. Well, we have waited patiently, but no news on when it will be available for sale or when pre-orders will be accepted. An update, please? The natives are getting restless. Robert KY1RK _

[Elecraft] KPA-500

I read somewhere that the devices in the amp were good for 20+ db of gain. I think there will be an attenuator pad in the amp that can be bypassed for more than 15 db gain. Mark, NØOKS K3 / 10 kit __ Elecraft mailing list Home: http://m

[Elecraft] KPA 500

Tokyo High Power has produced a 600 watt amplifier, HL-550FX , http://www.arraysolutions.com/Products/THPtop.htm that can handle a wide range of voltages, so it is ideal for places with bad voltage regulation. Will the new amplifier that Elecraft will produce will have this same ability? __

[Elecraft] KPA 500

r. 73 John --- On Sat, 2/5/11, juergen wrote: > From: juergen > Subject: Re: [Elecraft] KPA 500 > To: elecraft@mailman.qth.net, "Albert Crespo" > Date: Saturday, February 5, 2011, 3:33 PM > Hi Albert > > The old standard of 220,230,240 volts +- 10% has been >

[Elecraft] KPA-500

So I'm drooling over the pictures and my wife says, "Looks like you have to decide what you are going to sell". Vy 73, Bob dJ0RD/WU5T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.

[Elecraft] kpa-500

Hello- I have a k3/10 and wonder if anybody field testing a Kpa-500 knows how much power out the amp will get with 10 watts of drive. Please advise off reflector. Thanks-Skip KT9T __ Elecraft mailing list Home: http://mailman.qt

[Elecraft] kpa-500

Phil, if you're ready to sub-contract out that arduous field testing, I'll be happy to take the KPA-500 off your hands. We could meet halfway...say, Corsicanna? John AE5X http://www.ae5x.com/blog "...I have a k3/10 and wonder if anybody field testing a Kpa-500 knows how much power out the

[Elecraft] KPA 500

KPA 500 Serial # 635 kit now working after about 6hours of fun putting it together. 73 Karl VK2GKA K3,P3,KPA500 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfa

[Elecraft] KPA-500

I'm looking for the manual in Spanish KPA 500​​, someone can help me? Siso HK3W __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.n

[Elecraft] KPA 500

Everyone, I have had my KPA500 linear for some time now and have been really happy with it. I use it with my K3 and they communicate with each other via the DB15 AUX cable that I built ( the one furnished by Elecraft was too short). The only issue I have encountered is the finals in the linear se

[Elecraft] KPA 500

Recently, I sent the KPA 500 in for a repair ( probably my fault ) which they covered under warranty. When the amp came back I noticed these Mods and upgrades: Replaced 39PF 1kv 17 meter mod cap with a 2kv. Added fan and side handle spacers. Would the spacers help any with fan noise? To

[Elecraft] KPA -500

Just to add to the statistics ... # 0971 has just been put together and working great, in 5 hrs assy time ! 73 Dwight NS9i=I __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mm

[Elecraft] KPA 500

I am not a design engineer or a technician. Simply a ham for 51 years or so. I have always loved 500 watt amps. My first was a Collins 30L-1. Still have it. Bought the first 12 volt solid state amp from Trans World Communications. Still have it. Bought the Icom AT 500. Still have it. Bought the S

[Elecraft] KPA 500

I'd like to know the latest on when it will be available. Hope it's shipping before the May/June 6m DX season. If we have openings like last summer maybe my last 29 are possible. K9IL __ Elecraft mailing list Home: http://mailman.qth

[Elecraft] KPA 500

Where do you get information on this amplifier? I tried Elecraft Web Products and they don't seem to be listing the KPA 500. Is there a different place to get the information and price? Art WA8VSJ K2/100 #642 __ Elecraft mailing list H

[Elecraft] KPA-500

Hi Folks, The local amateur club had a club meeting, coffee session and show and tell this morning. I set the KPA-500 on the table with the cover removed and much interest was generated. I gave a talk on the amplifier and amplifier was very well received. One comment was that on arrival home he

[Elecraft] KPA-500

Any news of KPA-500 assy.manual. 73,Nandu K3 # 282 __ 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: htt

[Elecraft] KPA 500

The KPA 500 transmits on all bands except 40 mtrs (cw). notice that when i put it into operate and view the power there is no asterisk before the power output. which shows the same power that is set on the K3 (30 watts). it show a minus sign. Need a little help with this problem. Don...w2xb

[Elecraft] KPA-500

G'day all, does anyone know if the KPA-500 kits have started shipping yet. If not what is the anticipated shipping date. -- 73 Dale - VK4DMC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://m

[Elecraft] KPA-500

Just built the amp but cannot find anywhere it says what the INFO button is for? W5KDJ - Wayne Rogers USNR (Ret.) 3DA0KDJ 5R8KD 7P8KDJ A25KDJ C91KDJ SV0WWW TF2WJN YI9PSE YN2KDJ LoTW eQSL (No Bureau) Diplomacy is the art of saying 'Nice doggie!' until you can find a rock.

[Elecraft] KPA-500

My question is Would it be easy to take out the transformer of an assembled amplifier? It is too heavy to hand carry on a flight so I would like to ship the transformer on its own. 73 de Ben SM6CKU __ Elecraft mailing list Home: http://

[Elecraft] KPA-500

raft@mailman.qth.net 傳送日期︰ 2011年09月21日 (週三) 9:47 PM 主題︰ [Elecraft] KPA-500 My question is Would it be easy to take out the transformer of an assembled amplifier? It is too heavy to hand carry on a flight so I would like to ship the transformer on its own. 73 de Ben SM

[Elecraft] KPA-500

Is the KPA-500 500W PEP? or DC input to the finals? Thanks -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-500-tp6844485p6844485.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mail

[Elecraft] KPA-500

Finally i received my KPA-500 amp kit s/n 564,it took 10 days to arrive in Tn.The build when straight forward and it worked without any problems.I have powered it with 240 and 120 volts no differance in power out.The Brown truck must of gotten lost in the mountains.Good luck to all the KPA-500 owne

[Elecraft] KPA 500

It is no longer available... Sold it! 73 Ozzie, w6icm __ 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: h

[Elecraft] KPA 500 Question

 I am trying to use my K3 and a Yaesu FTDX10 with my KPA 500. I have cables that control the amplifier for each radio. What can I use for a switch box to switch the cables into the amp? A VGA switch did not work.   Doug K6JEY __ Elecraft

[Elecraft] KPA-500 Failure

Greeting to everyone I have read the KPA500 operator manual in hopes of solving my issue and have found nothing that solves/fixes the problem. This amplifier has been a workhorse for many years and today after the KAT500 antenna tuner searched/found a 'match' for a new antenna, I selected OPER on

[Elecraft] KPA-500 Failure

"With the OPER light GREEN and slowly increasing the RF drive level to the amp, there is a point where an internal relay 'click' can be heard, the 50-watt LED on the top row of LEDs turns red and the FAULT light turns red." All the KPA500 LED are single color. The 50 W LED is either lit green o

[Elecraft] KPA-500 Failure

Hello Rick (NK7I) and Andy (K3WYC) - Tnx replies "Message: 17 Date: Wed, 24 Apr 2024 14:11:28 + From: Andy Durbin To: "elecraft@mailman.qth.net" Subject: [Elecraft] KPA-500 Failure Message-ID: < dm4pr10mb6791e0db00b79830385f5cd28c...@dm4pr10mb6791.namprd1

[Elecraft] KPA-500 failure

Anyone else have their KPA-500 crash on power ON?   All LED's briefly flash then all dead.  Main fuses good.   73,  Mike AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmf

Re: [Elecraft] KPA 500

r are rated at 5 KW. 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan - G4GNX Sent: Friday, April 10, 2020 6:27 AM To: Elecraft Reflector Subject: [Elecraft] KPA 500 I have a strange fault a couple of times rec

Re: [Elecraft] KPA 500

I would be more likely to suspect something after the KPA500, such as the tuner or a balun. I've experienced significant balun heating, especially when using a balun other than a straight-through 1:1 balun, or when the load is highly reactive. Balun power ratings assume a non-reactive load. 7

Re: [Elecraft] KPA 500

My experience is that slowly increasing SWR is from a component heating up, usually an inductor in a tuner or balun. You don't see it with lower power. Ferrite cores change their inductance radically as they heat up near their Curie temperature. If they get to their Curie temperature, they lost the

Re: [Elecraft] KPA 500

Alan, That does sound like an antenna problem - balun heating, a loose or bad connection somewhere. Try that same test into a dummy load - if it shows the same behavior, then you can blame the KPA500, but if not blame the antenna system. 73, Don W3FPR On 4/10/2020 7:26 AM, Alan - G4GNX wro

Re: [Elecraft] KPA 500

If the initial VSWR is really measuring 1.00:1 with low power, that means the detected reflected power is exceptionally low. I'm sure the algorithm used to compute SWR sets it to 1:1 if there's zero reflected power. If the load is not really perfectly flat, as the incident power is increased th

Re: [Elecraft] KPA 500

are rated at 5 KW. 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan - G4GNX Sent: Friday, April 10, 2020 6:27 AM To: Elecraft Reflector Subject: [Elecraft] KPA 500 I have a strange fault a couple of time

Re: [Elecraft] KPA 500

I am watching this with great interest. If running stations on CW my KPA500 shows low-mid 50sC and I have never known what it should be. Thanks everyone. On Fri, Apr 10, 2020 at 10:27 Randy Farmer wrote: > If the initial VSWR is really measuring 1.00:1 with low power, that > means the detected

Re: [Elecraft] KPA 500

In my experience, coax connectors, barrel connectors, etc. are always fail points when there is a sudden increase in SWR as power is increased. They oxidize over time and sometimes just reconnecting or replacing is the first step before taking the amp apart. Irwin KD3TB On Fri, Apr 10, 2020 at 1

Re: [Elecraft] KPA 500

On 4/10/2020 8:45 AM, Irwin Darack wrote: In my experience, coax connectors, barrel connectors, etc. are always fail points when there is a sudden increase in SWR as power is increased. They oxidize over time and sometimes just reconnecting or replacing is the first step before taking the amp apa

Re: [Elecraft] KPA 500

Agreed. Many people buy the cheap ones made in Chinaand they fail. Irwin KD3TB On Fri, Apr 10, 2020 at 12:28 PM Jim Brown wrote: > On 4/10/2020 8:45 AM, Irwin Darack wrote: > > In my experience, coax connectors, barrel connectors, etc. are always > fail > > points when there is a sudden inc

Re: [Elecraft] KPA 500

My first question is "what does it do on a dummy load?"  Sounds like something related to a bad or questionable jumper cable, loose connector or bad connectors.   I find many of today's connectors have machining tolerance errors and more so, have only "good looking" plating.  While in fact, man

Re: [Elecraft] KPA 500

A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/10/2020 12:43 PM, Irwin Darack wrote: Agreed. Many people buy the cheap ones made in Chinaand they fail. Irwin KD3TB On Fri, Apr 10, 2020

Re: [Elecraft] KPA 500

Amphenol more than likely does QC... So I would expect the majority of their connectors to be better than the possibly non QC tested connectors. I doubt most resellers QC the connectors. I am sure some do, but I would love to know which ones do. 73, and thanks, Dave (NK7Z) https://www.nk7z.

Re: [Elecraft] KPA 500

I try and spend the time to recover OLD PL-259 connectors.  I have some which I've owned for 30 to 40 years.  They are ugly, tarnished, and may have phenolic insulatorsbut are darn good connectors.    When I encounter a bad or connector, I usually chop the connector off with about 1" of

Re: [Elecraft] KPA 500

: [Elecraft] KPA 500 I am watching this with great interest. If running stations on CW my KPA500 shows low-mid 50sC and I have never known what it should be. Thanks everyone. On Fri, Apr 10, 2020 at 10:27 Randy Farmer wrote: If the initial VSWR is really measuring 1.00:1 with low power

Re: [Elecraft] KPA 500

On 4/10/2020 10:19 AM, Buck wrote: A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. Um, Apple products have long been made in China. Fair-Rite has had one or more factories in China for more than a decade. "Made in China" does NOT define the product as junk.

Re: [Elecraft] KPA 500

Lyn, WØLEN -Original Message- From: Lyn Norstad [mailto:l...@lnainc.com] Sent: Friday, April 10, 2020 8:59 AM To: 'Alan - G4GNX'; 'Elecraft Reflector' Subject: RE: [Elecraft] KPA 500 At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on Standby and temp

Re: [Elecraft] KPA 500

That’s likely true. But if he’s saying they’re the same as Chinese brand, that’s nonsense. I use a lot of connectors from Amphenol Audio which are made in China. The difference between Amphenol & equivalent Chinese is obvious on inspection. Mating is very solid and contact plating looks much n

Re: [Elecraft] KPA 500

k To: elecraft Sent: Fri, Apr 10, 2020 1:23 pm Subject: Re: [Elecraft] KPA 500 A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. k4ia, Buck K3s# 11497 Honor Roll  8B DXCC EasyWayHamBooks.com On 4/10/2020 12:43 PM, Irwin Darack wrote: > Agreed. Many people

Re: [Elecraft] KPA 500

1:27 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA 500 On 4/10/2020 8:45 AM, Irwin Darack wrote: > In my experience, coax connectors, barrel connectors, etc. are always > fail points when there is a sudden increase in SWR as power is > increased. They oxidize over time and s

Re: [Elecraft] KPA 500

lman.qth.net] On Behalf Of Jim Brown > Sent: Friday, April 10, 2020 11:27 AM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] KPA 500 > > On 4/10/2020 8:45 AM, Irwin Darack wrote: > > In my experience, coax connectors, barrel connectors, etc. are always > > fail p

Re: [Elecraft] KPA 500

"60 deg C with fan not running is not normal.  60 deg C is the nominal temperature for start of fan speed 3." The conversation was continued off "list" but there are a few points that I'd like to be in the archive -  There would appear to be two possible failure conditions.  Either the fan is

[Elecraft] KPA 500 fault!

My KPA500 has been working fine waited for 115 V. Just now it has been throwing a “25=70 VAC” fault! Can anyone lead me in helping this? Fuses look good. HV read 0.1 v when in standby, which is FAR from the 70 some volts it used to read. Thanks! Tom W4KX __

[Elecraft] KPA-500 Issues

I have the combo K3S/KAT500/KPA500 with all of the optional interconnection cables. I am not able to key the amp though it was working earlier. The asterisk does not appear in the display. I went through the menu and everything is set accordingly. The inhibit is disabled. Any help would be

[Elecraft] KPA-500 Warm

See page 14, paragraph 1. for the confirmation of why the left rear corner is warm. 73 Bob, K4TAX On 6/30/2021 7:12 PM, elecraft-requ...@mailman.qth.net wrote: Message: 2 Date: Wed, 30 Jun 2021 09:08:41 -0700 From: Phil Hystad To: Ken Winterling Cc: Elecraft Reflector Subject: Re: [Elecraft]

Re: [Elecraft] KPA 500

On 2022-03-22 02:24, F5vjc wrote: What is the advantage of using a band switching cable between the transceiver and the KPA500 over just relying on the RF sensing function? Do you trust that RF sensing function? REALLY trust it? Because if you transmit into the wrong LPF, it can be Game O

Re: [Elecraft] KPA 500

On 3/22/2022 2:24 AM, F5vjc wrote: What is the advantage of using a band switching cable between the transceiver and the KPA500 over just relying on the RF sensing function? I've never used one. A tap on the mic or a dit is all that is needed. 73, Jim K9YC _

Re: [Elecraft] KPA 500

A long time ago I used a KPA500 with a Yaesu FT1000MP and the RF sensing worked perfectly. Perhaps if you have a KAT500 and are using different antenna ports or have very out of tune antennas there may be an advantage to having cable control but otherwise I would not worry about it. John KK9A F

Re: [Elecraft] KPA 500

Although I have a K3 and a K3S, they are relegated to backup service to my Kenwood TS-890. A number of us Kenwood users also have KPA500 and KAT500s.  We are using mostly home-built cables for interconnection.  If you don't have the KAT500 then RF sensing is probably good enough.  The advantag

Re: [Elecraft] KPA 500

It’s also worth mentioning that if the radio and the amp are hard wired together, changing the band using the buttons on the front of the amp automatically changes the band on the radio. Richard W4KBX > With the band switching cable between the radio and amp, the amp follows the > receiver fr

Re: [Elecraft] KPA 500

ave yet to touch them. To each his own. Ken K6MR From: elecraft-boun...@mailman.qth.net on behalf of Andy Durbin Sent: Wednesday, March 23, 2022 1:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KPA 500 "It’s also worth mentioning that if the radio and the amp are hard

Re: [Elecraft] KPA 500

Hmm.  I used to joke that I bought a KPA500 just so I could switch bands on my K3 without accidentally changing the VOX setting. N7WS On 3/23/2022 1:58 PM, Ken K6MR wrote: "They are a "bandaid" for the lack of band buttons on the K3." I've always considered "band buttons" on any radio to be

Re: [Elecraft] KPA 500

esday, March 23, 2022 4:26 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA 500 Hmm. I used to joke that I bought a KPA500 just so I could switch bands on my K3 without accidentally changing the VOX setting. N7WS On 3/23/2022 1:58 PM, Ken K6MR wrote: > "They are a "bandai

Re: [Elecraft] KPA 500

s > I've had KPA500s and a KPA1500 I have yet to touch them. To each his own. > > Ken K6MR > > > From: elecraft-boun...@mailman.qth.net on > behalf of Andy Durbin > Sent: Wednesday, March 23, 2022 1:18 PM > To: elecraft@mailman.qth.ne

Re: [Elecraft] KPA 500

With all the various pieces of information in this discussion, let’s answer things correctly. First, is hardwired cabling needed? The answer is no, it is definitely not. The KPA500 always counts the RF frequency and will switch to the counted band if it does not agree with whatever else it sees.

[Elecraft] KPA 500 glitch

Having a bit of trouble with the KPA500 following the bands out of the K3S. For some reason, the other day I accidentally hit a button combination on the K3S (not sure what I hit) and the KPA500 is now thinking 7.0 MHz is 1.8 and some of the other bands aren't switching correctly either. I ca

Re: [Elecraft] KPA 500

Yes Barry, it does. Jeff Cochrane VK4BOF Innisfail QLD Australia Elecraft K3 #4257 - Original Message - From: Barry Simpson To: elecraft@mailman.qth.net Sent: Friday, July 30, 2010 2:20 PM Subject: [Elecraft] KPA 500 Does anyone know if the KPA 500 has a built in power

Re: [Elecraft] KPA 500

Yes. The KPA500 has an internal 60-V linear DC supply based on a toroidal transformer. 73, Wayne N6KR Barry Simpson wrote: > Does anyone know if the KPA 500 has a built in power supply ? __ Elecraft mailing list Home: http://mailman

Re: [Elecraft] KPA 500

ned a very great deal, and the result was excellent. No more flash-overs and clean output. And the old girls, the 3-500Z's, are still shining well. The one thing that is missing is 6M amplification. This is where the new Elecraft KPA-500 will do well. I believe the new 6M Alpha (RF Concepts

Re: [Elecraft] KPA 500

Hi Gang: Of course, some hams are QRP people. Not particularly interested in - any- amp. Horses for courses, I guess. 73 de Ray K2ULR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailma

Re: [Elecraft] KPA 500

We're shooting for first regular production in Feb. Field test production is running now. 73, Eric www.elecraft.com --- On 10/18/2010 8:32 AM, r miles wrote: > I know some guys are reporting seeing them at hamfests. Maybe I've missed it > but is there an actual date they may be on the marke

Re: [Elecraft] KPA 500

Hi Bob, We're shooting for February. The amps are working beautifully, but we need to ramp up for production, and some parts have longer lead times. We'll be announcing pricing, etc., well before then. 73, Wayne N6KR On Oct 18, 2010, at 8:32 AM, r miles wrote: > I know some guys are report

Re: [Elecraft] KPA 500

So, when can we order one? 73, doug Date: Mon, 18 Oct 2010 09:24:19 -0700 From: "Eric Swartz - WA6HHQ, Elecraft" We're shooting for first regular production in Feb. Field test production is running now. --- On 10/18/2010 8:32 AM, r miles wrote: > I know some guys are

Re: [Elecraft] KPA 500

Not yet, but probably before year end. We want to see our final production parts price quotes and production parts lead times finalized before setting the price and order date. We also have to complete the FCC part 97 self certification submittal and get the subsequent approval. We are workin

Re: [Elecraft] KPA 500

On 10/18/2010 9:45 AM, Eric Swartz - WA6HHQ, Elecraft wrote: > We also have to complete the FCC part 97 self certification submittal > and get the subsequent approval. It's important to realize that FCC Rules require that this certification be obtained before the amp can be OFFERED FOR SALE. S

Re: [Elecraft] KPA 500

Hi Dave, We're working on a high-performance, 500 watt+ balanced ATU (KAT500) that can be used with the KPA500 or other amplifiers in this power class. Details over coming months. 73, Wayne N6KR On Oct 18, 2010, at 3:33 PM, David and Dianne on Comcast wrote: > Eric.Wayne, > > Will you be

Re: [Elecraft] KPA 500

Hi, That's extremely interesting. Will that be a motor driven or relay operated tuner? Any hints as to size? More than one antenna? AB2TC - Knut wayne burdick wrote: > > Hi Dave, > > We're working on a high-performance, 500 watt+ balanced ATU (KAT500) > that can be used with the KPA500 or

Re: [Elecraft] KPA 500

Very rugged relay-switched L network. Probably about the size of a P3, and usable at the base of the antenna or indoors. Probably 4 antenna jacks. That's all for now :) Wayne N6KR On Oct 18, 2010, at 4:52 PM, ab2tc wrote: > > Hi, > > That's extremely interesting. Will that be a motor driven

Re: [Elecraft] KPA 500

Hi again, I am drooling already. AB2TC - Knut wayne burdick wrote: > > Very rugged relay-switched L network. Probably about the size of a P3, > and usable at the base of the antenna or indoors. Probably 4 antenna > jacks. > > That's all for now :) > > Wayne > N6KR > > > -- View thi

Re: [Elecraft] KPA 500

Wayne Burdick wrote: >Very rugged relay-switched L network. Probably about the size of a P3, >and usable at the base of the antenna or indoors. Probably 4 antenna >jacks. > >That's all for now :) > If it's still possible at this stage in the design process, please consider a "bare" (or minimall

Re: [Elecraft] KPA 500

; > > > 寄件人﹕ Ian White GM3SEK > 收件人﹕ elecraft@mailman.qth.net > 傳送日期﹕ 2010/10/19 (二) 4:21:31 PM > 主題： Re: [Elecraft] KPA 500 > > Wayne Burdick wrote: >> Very rugged relay-switched L network. Probably about the size of a P3, >> and usa

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