[Elecraft] WTB Elecraft W2, 2kw sensor

Looking for a second Elecraft 2kw Directional Coupler sensor for the W2 wattmeter. Anyone have a spare or not really using theirs? 73, Ray, N6VR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Running WSPR on KX3 using a Mac

On Mon,1/23/2017 9:13 PM, Walter Underwood wrote: It looks like WSPR might be built into WSJT-X now. Yes, it's in v1.7, which I think might be in late beta. Yes, there's a Mac version. Download here. http://physics.princeton.edu/pulsar/k1jt/wsjtx.html v1.7 is a major upgrade -- more modes,

Re: [Elecraft] Running WSPR on KX3 using a Mac

It looks like WSPR might be built into WSJT-X now. This post from 1.5 years ago talks about that. http://wsprnet.org/drupal/node/5563 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 23, 2017, at 8:37 PM, Brian ve3bwp

Re: [Elecraft] WTB - KX2

Power contester.. superstation owner/operator.. and yes, also a KX2 owner.. this thing is one of the coolest radios I have ever owned. LOVE IT! Can take it anywhere! -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave AD6A Sent: Monday,

[Elecraft] Running WSPR on KX3 using a Mac

There seems to be a lot of Mac users on this forum. No answers on WSPR forums so hopefully someone here has overcome this: Is there anyone here running WSPR on a Mac? My qrp digital station is a KX3, a Signalink USB, a MacBook (and a CrankIR). Been able to do all the modes I want (using fldigi

Re: [Elecraft] WTB - KX2

Look no furtherElecraft sell them! They're excellent - love mine! I'd bet no one will be selling their KX2 secondhand anytime soon Cheers es 73, Dave AD6A Sent from my  iPhone 5s > On Jan 23, 2017, at 12:59 PM, pkhjr via Elecraft > wrote: > > Looking for

Re: [Elecraft] (OT redoux) MAG LOOP ANTENNAS

Hi, I already used the Alexloop inside my house a few years ago. I was using at that time a FT-897D running at 5W on battery on 20m…. And I did many contacts using PSK31 and JT-65. I was really fun to see how it was possible to even do contacts inside the house…. At least, to experiment mode

Re: [Elecraft] Audio Output Impedance of the KX3

OK, here goes my two cents on my KX3 operation.  I use the internal speaker for CW only.  I use a miniX self powered speaker for quiet portable work and I use a FM modulator from the phone jack while in the mobile to the car FM receiver.   All seems to work fine.  This way I don't worry about

Re: [Elecraft] MAG LOOP ANTENNAS

On 1/23/2017 1:52 PM, Peter LaBissoniere wrote: The jury is still out, in my opinion, as to how RF affects the human body, especially the brain. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] MAG LOOP ANTENNAS

Yeah I often smell baked ham when using my KPA500. Sent from my iPhone > On Jan 23, 2017, at 3:21 PM, KENT TRIMBLE wrote: > > The Alex Loop is rated at 20 watts PEP maximum. > > Even at 5 watts, I position mine as far away from my body as I can. > > The jury is still out,

Re: [Elecraft] Audio Output Impedance of the KX3

David, Let me try to respond and perhaps Jim will chime in a well. Modern audio amplifier output stages are very low output impedance devices. As such, they can produce as much power as the device connected will allow. In a practical design of course there is a limit to how much current the

Re: [Elecraft] Audio Output Impedance of the KX3

On Mon,1/23/2017 12:54 PM, Jim Brown wrote: The impedance of mics is defined as 5X their minimum load impedance. Correction -- one-fifth of their minimum load impedance. For example, a 250 ohm mic should drive an input impedance no lower than 1.25K. Most pro mics are in the range of 150-250

[Elecraft] MAG LOOP ANTENNAS

The Alex Loop is rated at 20 watts PEP maximum. Even at 5 watts, I position mine as far away from my body as I can. The jury is still out, in my opinion, as to how RF affects the human body, especially the brain. 73, Kent Trimble, K9ZTV Jefferson City, MO On 1/23/2017 1:11 PM, someone

[Elecraft] (OT FINI ) MAG LOOP ANTENNAS

Thanks everyone for thoughts and help on the MAG LOOPS. I thinks for now operating issues indoors can be solved with a BL2 and a large roll of 20-24ga white wire. 73 KC5WA -- May You Live Long and Prosper what's life without a few dragons

[Elecraft] WTB - KX2

Looking for KX2, contact me off line. 73 Tex ka5y -- View this message in context: http://elecraft.365791.n2.nabble.com/WTB-KX2-tp7626042.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home:

Re: [Elecraft] Audio Output Impedance of the KX3

Hi Dave, I've written about this many times, but here goes again. :) Your choice of the words "designed impedance" is a good one. Audio output stages have an internal impedance MUCH lower than the loads they are designed to drive. For example, a typical speaker output stage is designed to

Re: [Elecraft] Audio Output Impedance of the KX3

Jim, Maybe you could expand on that somewhat as I'm still confused a bit. Perhaps I'm not understanding what I hear, or why, but it almost always seems that when speakers (or headphones) are not closely matched to the designed impedance I notice some deterioration in output. Some mismatch

Re: [Elecraft] Audio Output Impedance of the KX3

I use from day one headset insten with mic works very will >From my DL750 Digicel On Jan 23, 2017 2:35 PM, a...@sbcglobal.net wrote: A good question? See you got specific answer for K3/K3S but not KX3. Any direct answers for KX3, rather than different headsets? I would go for earbuds for

Re: [Elecraft] Audio Output Impedance of the KX3

A good question?   See you got specific answer for K3/K3S but not KX3.   Any direct answers for KX3, rather than different headsets?   I would go for earbuds for lightest weight but would like high efficiency type with KX3.    Anyone found a good efficient set of earbuds with the KX3?   73,

Re: [Elecraft] (OT redoux) MAG LOOP ANTENNAS

Many years ago, when computers filled buildings, consumed a megawatt or two, and the IBM CEO forecast a world-wide market for them of maybe six, ten tops ... automatic antenna matching, particularly in HF mobile environments, was sometimes achieved by sampling the voltage and current at the

Re: [Elecraft] (OT redoux) MAG LOOP ANTENNAS

I just wish Alex would release the motor to control the tuning... -Kevin (KK4YEL) - The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence. On Jan 23, 2017, at 14:13, Fred Jensen

Re: [Elecraft] Audio Output Impedance of the KX3

I think it is very low on practically all of today's radios and it doesn't matter, the output stage will drive anything. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 1/23/2017 9:00 AM, Joe W2KJ wrote: Howdy Gang: Checked the KX3 manual but was unable to find the audio output

Re: [Elecraft] (OT redoux) MAG LOOP ANTENNAS

Good to know. I've never tried my Alexloop inside the house, but for an all-round portable antenna it meets the requirements of size, ease of set-up/take-down, and working well at QRP-ish power levels. The tuning problem is mitigated by the fact that I usually sit directly under it when it's

Re: [Elecraft] (OT redoux) MAG LOOP ANTENNAS

It doesn't directly address KC5WA's need (unless his retirement home is at the beach) but a subterfuge I see used on the coast for people at vacation rentals involve long surf-fishing poles. Some are 20 feet or more long so it is common to see them propped up near vertical at the deck railing at

Re: [Elecraft] Audio Output Impedance of the KX3

For the speaker output, the K3 and K3S are optimized for 4 ohms. The SP3 is a 4 ohm speaker. 8 Ohm speakers work fine, but a a slightly lower audio output for the same volume control position. Eric /elecraft.com/ On 1/23/2017 9:00 AM, Joe W2KJ wrote: Howdy Gang: Checked the KX3 manual but

Re: [Elecraft] KAT-500 Remote software display

On 1/23/2017 10:20 AM, Don Wilhelm wrote: Those values are used by the firmware to compute the SWR. I do not know the conversion factors (and don't really care since the firmware does the computation). If you're calculating SWR, you don't need to convert them before you do the calculation --

Re: [Elecraft] KAT-500 Remote software display

Jack, VFWD and VRFL are values straight out of the analog to digital conversion of forward power and reflected power measured by the coupler. The value can range from 0 to 4096. See the KAT500 Command Reference. Those values are used by the firmware to compute the SWR. I do not know the

Re: [Elecraft] K3/KX3 and Bluetooth Headphones

I purchased a Bluetooth transmitter for use with sound system and decided to try it on my KX3. Works OK for SSB, but absolutely unusable for CW as mentioned the latency is so bad I had to disconnect it to send. -- View this message in context:

Re: [Elecraft] Audio Output Impedance of the KX3

On Mon,1/23/2017 9:22 AM, Walter Underwood wrote: For portable operation, I use Apple EarPods. Those are 45 Ohms. Don't worry about impedance of headphones. There is no need to match impedances in audio circuits. 73, Jim K9YC __

Re: [Elecraft] Audio Output Impedance of the KX3

For portable operation, I use Apple EarPods. Those are 45 Ohms. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 23, 2017, at 9:07 AM, Walter Underwood wrote: > > I use Yamaha CM500 headphones and their specs say 120 Ohms. They work

Re: [Elecraft] Audio Output Impedance of the KX3

I use Yamaha CM500 headphones and their specs say 120 Ohms. They work fine. http://usa.yamaha.com/products/music-production/accessories/headphones/cm500/ wunder K6WRU Walter Underwood CM87wj

[Elecraft] Audio Output Impedance of the KX3

Howdy Gang: Checked the KX3 manual but was unable to find the audio output impedance of the KX3, i.e., what impedance headphones/speaker should I be using on the rig? I’m looking to buy a lightweight headset for portable ops and want to know what impedance I should be looking for. Many thanks

[Elecraft] OT : The passage of time brings change 

Thanks for setting me straight, Don. I -do- have a number of bags of 75 ohm connectors ... both BNC and Type N ... that do have smaller pins, but they are "old" ... like me. We used them by the hundreds on our microwave and MUX. 73 K0PP

[Elecraft] Let me build you K2 or other Elecraft kit.

I have built hundreds of K2's over the years. let me build one for you. My prices are reasonable and you have a new K2 with the options you want. 73 Alan W1HYV __ Elecraft mailing list Home:

[Elecraft] KAT-500 Remote software display

Recently noticed on the KAT500 remote interface on the PC, lower right corner shows VFWD and VRFL, when I run winlink express with radio at 100 watts USB it shows VFWD:675 VRFL:50 Appreciate if someone can explain the numbers Tnx, Jack W4GRJ

Re: [Elecraft] [KX3] A BNC Connector to consider for your KX2 / KX3

And as someone who has built several Baluns, these do not even say what the impedance ratio is. A good Balun will have the right impedance ratio for the intended job, and the right internal impedance between the pairs of wires on the cores to provide a low return loss. It is not easy to get good

Re: [Elecraft] [KX3] A BNC Connector to consider for your KX2 / KX3

From a career comm tech ... me. 75 ohm BNC's -are- different and have smaller center pins. In addition, the power ratings of video -and- TV baluns are miniscule ... even for QRP use. 73 On Jan 22, 2017 20:18, "Bill Miner w...@yahoo.com [KX3]" < kx3-nore...@yahoogroups.com> wrote: > > > Video

Re: [Elecraft] Elecraft Digest, KXPA100 RF feedback

On 23/01/17 02:23, elecraft-requ...@mailman.qth.net wrote: > From: E T > To: donw...@embarqmail.com > Cc: Elecraft Reflector Reflector > Subject: Re: [Elecraft] KXPA100 RF feedback > Message-ID: >