Re: [Elecraft] What technical similarity do HRO receivers and Elecraft receivers share that is unique? - Answer

Reflector <elecraft@mailman.qth.net> Subject: [Elecraft] What technical similarity do HRO receivers and Elecraft receivers share that is unique? - Answer Hi Don and others- Ok.Here is my answer- I don't think I am far off by saying that the unique similarity it is in using switched comp

Re: [Elecraft] What technical similarity do HRO receivers and Elecraft receivers share that is unique? - Answer

ity do HRO receivers and Elecraft receivers share that is unique? - Answer Hi Don and others- Ok.Here is my answer- I don't think I am far off by saying that the unique similarity it is in using switched components to effect frequency coverage of the same tuning coil. In the HRO they had clips you coul

[Elecraft] What technical similarity do HRO receivers and Elecraft receivers share that is unique? - Answer

Hi Don and others-   Ok.Here is my answer-  I don't think I am far off by saying that the unique similarity it is in using switched components to effect frequency coverage of the same tuning coil. In the HRO they had clips you could change over to go to "bandspread" mode on each coil assembly,

Re: [Elecraft] Receivers?

The West Valley Amateur Radio Association (WVARA) Field Day operation, using the K6EI call, has been using a mixture of mostly K3s with some K2s and KX3s. We run QRP and last year entered as 11AB. We have very little difficulty with mutual interference, even when we are running SSB, digital,

Re: [Elecraft] Receivers?

ft@mailman.qth.net Sent: 12/11/2015 6:23:11 PM Subject: Re: [Elecraft] Receivers? Scott, I agree with all that Ron says -- and have the K2, K3 and KX3 .. and like them all. Re "I am considering the KX3": The one caveat I would add, and others can expand on (or disagree with) this,

Re: [Elecraft] Receivers?

Thanks Bill your description is really helpful. Thanks for taking the time to send tha info along. 73 Scott N0HOK / ZL1CHM Auckland New Zealandx Sent from my iPhone On 12/12/2015, at 3:25 PM, Bill Frantz wrote: > I have both a K3 and a KX3 and have used a K2. The

Re: [Elecraft] Receivers?

I don't think these descriptions are accurate, particularly the K2 versus K3 one. The K2 is a fairly conventional, single conversion, analogue design. As stated, it uses the crystal filter for primary selectivity. It typically has up to two crystal filter options, one hard wired, and the

Re: [Elecraft] Receivers?

Hi, the block diagram of the K2 can be found in the owners manual page 148. http://www.elecraft.com/manual/E740001_K2%20Owner's%20Manual%20Rev%20I.pdf 73 de Hajo DL1SDZ Gruss Hajo --- Cela est bien dit, mais il faut cultiver notre jardin. On Sat, Dec 12, 2015 at 12:55 PM, David Woolley

Re: [Elecraft] Receivers?

I believe Ron had that at the tail end of his very first reply, Brian. Phil On 12/12/15 7:21 AM, Brian Hunt wrote: This has been an excellent discussion but I'm surprised there hasn't been a reference to Rob Sherwood's chart which has a quantitative comparison of the three receivers. Here

Re: [Elecraft] Receivers?

This has been an excellent discussion but I'm surprised there hasn't been a reference to Rob Sherwood's chart which has a quantitative comparison of the three receivers. Here it is: http://www.sherweng.com/table.html 73, Brian, K0DTJ

Re: [Elecraft] Receivers?

-- Original Message -- From: "Phil Wheeler" <w...@socal.rr.com> To: "Elecraft Reflector" <Elecraft@mailman.qth.net> Sent: 12/12/2015 3:18:43 AM Subject: Re: [Elecraft] Receivers? Barry, You said "Our Field Day operation uses all KX3s, QRP ... ".

Re: [Elecraft] Receivers?

In the K3 schematic, I don’t see any quadrature path starting from the second mixer in the RX path — the two signals lines coming out of that 2nd RX mixer are a balanced (differential) output, not in-phase and quadrature signals. On the TX side, the DSP seems to produce I outputs, but it seems

Re: [Elecraft] Receivers?

Sorry guys, my bad. Comes from reading email on an iPod.  Brian, K0DTJ __ 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

Re: [Elecraft] Receivers?

Matt, You will not see analog I/Q signals in the K3 - the 2nd mixer's 15kHz output feeds an Analog to Digital converter and the I and Q signals only exist in the digital realm. In transmit, the same thing happens in reverse - the mixer sees the 15 kHz output of a DAC. 73, Don W3FPR On

Re: [Elecraft] Receivers?

man.qth.net] On Behalf Of Scott Gillen ZL1CHM Sent: Friday, December 11, 2015 1:09 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Receivers? Can anyone compare the receivers in the KX3 versus K3 versus K2? Is there a significant difference? I am considering the KX3. 73 Scott N0HOK /

[Elecraft] Receivers?

Can anyone compare the receivers in the KX3 versus K3 versus K2? Is there a significant difference? I am considering the KX3. 73 Scott N0HOK / ZL1CHM Auckland New Zealandx Sent from my iPhone __ Elecraft mailing list Home:

Re: [Elecraft] Receivers?

-- From: "Phil Wheeler" <w...@socal.rr.com> To: elecraft@mailman.qth.net Sent: 12/11/2015 6:23:11 PM Subject: Re: [Elecraft] Receivers? Scott, I agree with all that Ron says -- and have the K2, K3 and KX3 .. and like them all. Re "I am considering the KX3":

Re: [Elecraft] Receivers?

ering on their web site: http://www.sherweng.com/table.html -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Scott Gillen ZL1CHM Sent: Friday, December 11, 2015 1:09 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Receivers? Can anyone compare the recei

Re: [Elecraft] Receivers?

quot;Barry LaZar" <k3...@comcast.net> Sent: 12/11/2015 7:10:54 PM Subject: Re: [Elecraft] Receivers? Barry, Re-read your note carefully. It doesn't make sense. You first say you will not know he is there, then you say you will know he is there but you can work through him? What does

Re: [Elecraft] Receivers?

I have both a K3 and a KX3 and have used a K2. The principle reason I would consider buying a K2 is for the joy of assembling the kit. When I compare the KX3 and the K3, I think of the KX3 as being about 90% of the K3, but many options are standard on the KX3 but extra cost on the K3. (Note

Re: [Elecraft] question about Elecraft receivers

Regarding induced voltages, my K3's serial port and line audio ports were damaged by induced voltages. The receiver was fine - the antennas had been disconnected, but not the connecting cables. I now disconnect everything, including the ground wire, during lightning storms and have had no

Re: [Elecraft] question about Elecraft receivers

One dry, windy winter's day (with no lightning that I was aware of, so I assume static build up) I had such a visitor come running down my antenna to meet my K2. I had used the rig with no issues and then later in the day turned it on and hit tune - that's when the smoke came out. In the end it

Re: [Elecraft] question about Elecraft receivers

I can give my own first-hand, real-world take on this. Exactly a year ago, my house took a direct hit with several shingles needing to be replaced. My one only antenna (between roof sky) was vaporized, as was the feedline. We lost a lot of electronic stuff to the strike as well as some

Re: [Elecraft] question about Elecraft receivers

I have not heard of many incidents with diode damage with the K3, but with the K2, we hear of this problem frequently. I do not know why the K3 has escaped damage to the wattmeter diodes, since its power control mechanism is similar to the K2. from W3FPR Not quite. My early K3 developed

[Elecraft] question about Elecraft receivers

/question-about-Elecraft-receivers-tp6770258p6770258.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

Re: [Elecraft] question about Elecraft receivers

I believe you have been hearing about the wattmeter diodes in the KPA100. That has nothing to do with the receiver at all. The receiver will withstand quite an excessive surge. The situation is that the K2/100 power control circuits depend on measuring the transmitted power right at the

Re: [Elecraft] question about Elecraft receivers

about something burning out due to close by lightning. I have not heard of this many before. My question is because of the high sensitivity of the receivers are the elecraft's prone to this? -- View this message in context: http://elecraft.365791.n2.nabble.com/question-about-Elecraft

Re: [Elecraft] question about Elecraft receivers

On 9/7/2011 7:13 PM, KC6CNN wrote: I have read several post about something burning out due to close by lightning. I have not heard of this many before. My question is because of the high sensitivity of the receivers are the elecraft's prone to this? No. You hear about Elecraft lightning

Re: [Elecraft] question about Elecraft receivers

There are some exceptions like communication towers where it is known in advance that they will receive multiple hits over the years, and need to be engineered to survive. And I can't even think about what it must have been like in a fire lookout tower during a storm. I have seen the

[Elecraft] receivers performance data

here is something I found on the net that will help others to understand better the performance data tables:     Here a few measurements of receivers, using 500Hz filters.  MDS is a measure of sensitivity. -135dBm is 10dB more sensitive than -125dBm. This number doesn't matter very much in