Re: [Elecraft] Early Production K1's

I have K1’s 78 and 52, built a long, long time ago. Still percolating perfectly. Never had any problems. Used no. 78 in Field Day without nary a hiccup. John K7FD > On Jul 1, 2020, at 9:50 PM, Tony wrote: > > All: > > I may have found the K1 I've been looking for. It's serial number is in

[Elecraft] Early Production K1's

All: I may have found the K1 I've been looking for. It's serial number is in the 550 range and I'd like to know if there's any issues with these early production runs before I make a purchase. I'm told the K1 is a solid design with quality components so I suspect longevity isn't a problem.

Re: [Elecraft] OT: Other Radios

I frankly don't understand the appeal of the IC-705. It sounds like it's a '7300 except at QRP levels, for about the same price. Am I wrong about that? Because that doesn't sound nearly as portable as a even a KX3. And it doesn't even come with an automagic antenna tuner. FWIW, even though I'm

Re: [Elecraft] Want to buy: Elecraft XG1 or XG2

I have found an XG2 in working condition. Thank you all for your offers and interest. 73, Ted NA7C On Thu, Jun 25, 2020 at 10:04 PM Ted Cowan wrote: > I am looking to buy an Elecraft XG1 or XG2, either built and working or in > kit form. > > 73, Ted NA7C >

Re: [Elecraft] OT: Other Radios

I can testify to this statement. I have learned that when my KX3 takes a long time getting a match, with lots of clicking etc. that I should check to make sure the antenna is actually connected and that the coax isn't shorted. 73 Bill AE6JV On 7/1/20 at 9:34 PM, n...@elecraft.com (Wayne

Re: [Elecraft] OT: Other Radios

> Eric Norris wrote: > > I know Elecraft is very busy finalizing the K4, but I wonder if they have a > secret Tiger Team working on a response to the IC--705? Perhaps a KX4? Hi Eric, I can't comment on any mythical beasts one way or the other. But I think the existing KX line holds its own

Re: [Elecraft] Difference in dummy loads

I have a MFJ-264 which is rated for 100W more or less continuously and 1500W for 10 seconds. It seems to work within its specs. I've used it at up to 1KW or so. I assume it is like most MFJ equipment, it does what it is specified to do, but don't push it even a little bit beyond. 73 Bill

Re: [Elecraft] Difference in dummy loads

The difference between a "dry" and an "air cooled"? I think they are the same. The difference is with "oil cooled". Heathkit used to sell a "Cantenna" which was a dummy load in a gallon paint can. Add your own transformer oil. IIRC it was rated for a KW for a short period. Ken WA8JXM On

Re: [Elecraft] Difference in dummy loads

A dry dummy load is good for up to its power rating - but do not exceed that rating. The air cooled dummy loads not only require power for the fan, but may be over-rated for their power spec. I prefer dry or oil immersed dummy loads. A good dummy load should present a 1.0 SWR for all the

Re: [Elecraft] Difference in dummy loads

Basically the same thing. I suggest the Vectronics DL-650 (dx engineering) or a commercial pull from Ridge Equipment. For serious testing, I fire up my 2GHz, 6kW water-cooled dummy load--louder than 10 KPA-1500s on PCP. Always get more capacity than you need. --because you'll need it later. If

Re: [Elecraft] Difference in dummy loads

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Re: [Elecraft] Difference in dummy loads

An air-cooled dry dummy load is just fine for 100 W. I like the Oak Hills Research RFL-100 kit. $50 and easy to build. It uses twenty 5 W resistors. http://www.ohr.com/rfl100.htm I wrote up my build of that kit here. https://observer.wunderwood.org/2016/12/31/building-a-dummy-load/ If you

[Elecraft] Difference in dummy loads

I need to purchase a dummy load for use with my K2/100. What's the difference between a dry dummy load and an air cooled dummy load? Which is better? Thanks, Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft

[Elecraft] OT: IC-705

I know Elecraft is very busy finalizing the K4, but I wonder if they have a secret Tiger Team working on a response to the IC--705? Perhaps a KX4? 73 Eric WD6DBM __ Elecraft mailing list Home:

Re: [Elecraft] k2 cap

Carlos, Yes, that is an unfortunate effect of the difficulty in obtaining thru-hole capacitors. That particular one cannot be bent over because it will interfere with the PA transistor mounting. If you also ordered the KSB2 option, there is an extra 0.01uF (10nF) capacitor in that kit. It

[Elecraft] k2 cap

hi, c 135 10nf cap fitted on the bottom side of the rf board, between the 2d fastener and transistor seems sticking out to high, i wonder if someone experienced this, not soldered in yet, i wait for some possible comments on that, regards carlos on6cn -- Sent from:

Re: [Elecraft] K3S VFO A & B encoder shaft diameter

Hi Dan, Thank you very much! Not able to measure it, as I am at my Texas home and the radio is at my Ohio home. 73 de Jim - KE8G On Wed, Jul 1, 2020 at 3:44 PM Don Wilhelm wrote: > The encoder shaft is 1/4 inch. > > 73, > Don W3FPR > > On 7/1/2020 3:18 PM, KE8G wrote: > > Hi All, > > I have

Re: [Elecraft] Err TXG message

Igor, Try doing the TX Gain Calibration manually (described in the manual). It is a bit tedious because it must be done on a band by band basis. An email to supp...@elecraft.com may get quicker attention than the form on the webpage. 73, Don W3FPR On 7/1/2020 4:48 PM, Igor Sokolov wrote: My

[Elecraft] Err TXG message

My K3 S/N 1651 has developed a problem showing ERR TXG message from time to time on different bands and 2.5:1 SWR on 28 MHz even into dummy load. In fact I think these are two separate unrelated issues, but I might be wrong. TX gain calibration fails for 5 W (does not go above 4.5W) and works

Re: [Elecraft] K3S VFO A & B encoder shaft diameter

The encoder shaft is 1/4 inch. 73, Don W3FPR On 7/1/2020 3:18 PM, KE8G wrote: Hi All, I have gone through the manual for a K3 & K3s but can't find the diameter of the VFO's encoder shafts. __ Elecraft mailing list Home:

[Elecraft] K3S VFO A & B encoder shaft diameter

Hi All, I have gone through the manual for a K3 & K3s but can't find the diameter of the VFO's encoder shafts. Please advise. Thanks in advance, Jim - KE8G __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] K3s noise figure spec

On 7/1/2020 8:26 AM, Charlie T wrote: I can tell you that super sensitive receiver performance is NOT a pre-requisite to working LOTS of DX of 50 MHz. But it CAN be critical to working the weakest stations that you might be chasing for an award or a new state, grid, or country. 73, Jim K9YC

Re: [Elecraft] K3s noise figure spec

My, how things have changed!  In the mid 60's in SE Asia, in a mobile troposcatter system [AN/MRC-98], we had 4 receivers that used Western Electric 416B planar triodes with the amazing NF of 3.7 dB at 460 MHz. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 7/1/2020 6:39 AM, Jim

Re: [Elecraft] K3s noise figure spec

Hi, Here is a quote of my response to the exact same question in 2017: "Hi, According to the ARRL review in November, 2dB! Deaf no more. AB2TC - Knut" That was from this thread: https://marc.info/?l=elecraft=149365913804929=2 There was a fairly long follow up discussion that was quite

Re: [Elecraft] K3s noise figure spec

I can't speak for E.M.E operations, but from over 60 years of experience on 6M, I can tell you that super sensitive receiver performance is NOT a pre-requisite to working LOTS of DX of 50 MHz. When the band is open, either via E or F2 propagation, signals are usually very "loud". The only "weak"

Re: [Elecraft] K4 Books

I second the use of PDF for finding answers. It really helps these old eyes to be able to expand the print quickly after using the search feature to find the word I'm searching for. A searchable PDF does this wonderfully. Another thing that helps me greatly is a video say on youtube that

Re: [Elecraft] K3s noise figure spec

The PR6-10 was the latest released preamp as an accessory for the K3 prior to the K3s with its built in preamp. They are likely very similar. Here's the manual for the preamp: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6-10%20Owners%20Manual%20Rev%20A.pdf NF is claimed to be 0.7db

Re: [Elecraft] K2 K2/100 post FD review

Mike, You are the only one who can determine this. Everyone else is reduced to guessing because they don't have access to your PSU/K2/power lead. Simple: Measure the PSU voltage on RX at the PUS terminals. Measure the PSU voltage on TX set to 100W at the PSU terminals. Compare both of these

Re: [Elecraft] K2 K2/100 post FD review

Don, this is what you sent earlier: “If the power supply voltage is not the problem, then remove the KPA100 from the base K2 and realign the bandpass filters. Connect a dummy load to the base K2 BNC ANT jack. After that, check the maximum power from the base K2 - you should have at least 10

Re: [Elecraft] K2 K2/100 post FD review

Yep I’m familiar with that formula. One of the tests in the assembly instructions was to test the current draw at 100w. It was 13A. The acceptable range was 13-18A so I thought that was a good result. Thanks, Mike NJ2OM > On Jun 30, 2020, at 11:20 PM, Nr4c wrote: > > Watts is Volts X

[Elecraft] Weird sounds coming from my K1...need a qualified exorcist

Sorry. I had the page on my site set to private. The link should work now. http://w1sfr.com/weird-k1-audio/ Here's what happened: I turned on the radio to get on the air tonight. It made this sound when I turned it on and after it booted up the sound went