Re: [Elecraft] [K1] Band Configs

I thought I recalled a 4 band. That confused me. I'm not interested in just the two, nor a used one. Maybe there's a chance the 4 band kit will come back? Oh well. On Sun, Sep 13, 2015 at 12:23 AM, Matt Maguire wrote: > Not quite. Without the KFL1-2 module, it supports

Re: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2

inventor61 . wrote > I had strongly considered the LiPo type secondary-cell power packaging > option and rejected it. > > Energy density in that chemistry/package is amazing of course. But that > equation is also true of a bomb. I have no problem with the LiPo in my > iPad, Galaxy S5 phone, and

Re: [Elecraft] [K1] Band Configs

There used to be a 4-band module, but it is discontinued. There doesn’t seem to be any chance it will come back. These days if you want more bands, you can either look at a KX1, KX3 or K2. --  73 de Matt VK2RQ Le 13 septembre 2015 à 5:39:31 PM, Lane (software.research.developm...@gmail.com) a

Re: [Elecraft] K3 to IC-7800 Comparison?

On Sat,9/12/2015 2:12 PM, Skip Cameron wrote: If anyone has done a K3 to IC-7800 comparison, Here's another VERY interesting set of RX measurements. The Noise Power Ratio (NPR), is essentially a measure of how broadband noise and QRM outside the passband show up inside the passband. It

Re: [Elecraft] K3 to IC-7800 Comparison?

On 9/13/2015 2:10 AM, Jim Brown wrote: He seems quite genuine, no horses in the race, his objectives seem to be the same as Rob Sherwood and my own -- to put mfrs feet to the fire to improve the receive performance and signal quality of the stuff they sell us. :) Adam is an out an out Icom

Re: [Elecraft] Elecraft SP3 External Speaker details

You are right about that. The only part of the Kenwood "520 Line" my Dad didn't get was the SP-520. He thought $50 bucks for a speaker to match his $600 radio was excessive. I have the set now and am looking for an SP-520 to finish it off. $70 minimum for a 40 year old SP-520. The thing

Re: [Elecraft] K3 to IC-7800 Comparison?

I certainly agree with Joe about Adam! I've never heard such prejudicial explanations trying to justify Icom's innocence for final transistor failures in the IC-7700's. He took all reports of final failures and said he was going to forward them to Icom, but very few of us ever believed he actually

[Elecraft] SP3 speaker sensitivity

What is the sensitivity of the external speaker? Tnx,Jim W5QM __ 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

[Elecraft] OT - RX Active Multicoupler Diagrams/Design

Pardon the Off Topic but I'm looking for a diagram / design for an active HF receive moulticoupler with outstanding dynamic range. Any suggestions? Thanks, Yngvi TF3Y -- http://www.tf3y.net __ Elecraft mailing list Home:

Re: [Elecraft] K3 to IC-7800 Comparison?

Tom, This is pretty off-topic, but not all vendors/manufacturers operate like that. I had a Canon camera which had known problems so that I didn't use it much due to "the threat of failure was there every time I turned that radio[camera] ON". So I bought a new camera, a later Canon model,

Re: [Elecraft] SP3 speaker sensitivity

90 dB SPL. Wayne N6KR On Sep 13, 2015, at 6:06 AM, Jim Hoge wrote: > What is the sensitivity of the external speaker? > Tnx,Jim W5QM __ Elecraft mailing list Home:

Re: [Elecraft] OT - RX Active Multicoupler Diagrams/Design

To follow up on my previous OT posting then I have found two designs on the web sofar, quite different constructions: http://www.schmitzhouse.com/Johns_Electronics_24.htm http://www.qsl.net/ko6bb/multicoupler_2.html I currently favor the first design but got some doubts on the dynamic range. 73,

[Elecraft] K3: reverse 12 volt supply

I managed to connect a 12 volt car battery backwards to the K3. There was a lot of smoke and the breaker popped. The RX and TX appear to have survived, however the internal 100 Watt amplifier now shows an over-current fault and quickly switches off. I haven't dared open it up yet - far too

[Elecraft] Maximum SWR for KPA-500 Amplifier without Tuner

The external amplifier that I am planning to replace handles an SWR of 3:1 without a tuner. What is the recommended SWR maximum without tuner for the Elecraft KPA-500? The only mentions of SWR in the manual are "connect to load of 1.5SWR or less" and the hard fault 9. Does this imply the amp

Re: [Elecraft] Elecraft SP3 External Speaker details

New products are always welcome. I look forward to "hearing them" at maybe one of the next ham fests. I like the fact the SP3 uses an oval speaker. I've never figured out exactly why, but I find ovals typically do sound better than rounds, but maybe it seems to be only in my findings. As a

Re: [Elecraft] External Speaker details

I've had many requests for the related information pertaining to the external speakers which I use.They are Realistic / Radio Shack Cat # 40-1313.They can be used as powered, which we do for the music system in the travel trailer, and I have a 2nd pair which I use as passive here at

[Elecraft] Elecraft CW Net Announcement

Good Morning, Please join us this afternoon and evening. 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7045 kHz at 0100z Monday (6 PM PDT Sunday) 73, Kevin. KD5ONS - __ Elecraft mailing list Home:

[Elecraft] TX Power

I have a K3S/100 and I can get full power when the mode is set to CW, but if I change it to CW REV I only get a small amount of RF output. Have I set something wrong? Danny, G3XVR -- View this message in context: http://elecraft.365791.n2.nabble.com/TX-Power-tp7607570.html Sent from the

Re: [Elecraft] TX Power

The problem is different on 80M and 6M. On 80M I can get full power on Normal CW, but not much on CW Rev. The opposite is true on 6M. However, if I reduce the bandwidth so that FL4 is selected instead on FL2 I can get full power on both bands and on both CW modes. If I select Split and use the

Re: [Elecraft] K3 to IC-7800 Comparison?

Adam has always been very dismissive publicly of the K3 architecture. However, I would hope that his personal opinion does not in any way influence the results of his testing. Al  W6LX __ Elecraft mailing list Home:

Re: [Elecraft] External Speaker details

I use a Radio Shack speaker/DSP combo. They are a little hard to find but worth it. It is a great addition for the KX3. 73 de George, W6GF Sent from my iPad > On Sep 13, 2015, at 10:33 AM, Bob McGraw - K4TAX wrote: > > > I've had many requests for the related

[Elecraft] Elecraft SSB Net Results

Between the sun not playing nicely and the Worked All Europe Contest, band conditions were the worst we've seen in many weeks. We did manage to pull in 11 contacts today. Thanks to Ken, W0CZ; David, KC0XT; Dave, W8OV; and John, N6JW, for helping with relay attempts today. Today's net attendees

Re: [Elecraft] External Speaker details

I found a deal on Polk Audio T15 home theater book ends (passive) for $60.00 a while ago at Best Buy. Awesome sound and frequency response. http://www.polkaudio.com/t15/d/1257C3666 73 Gene, N9TF K3S 10057 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On

Re: [Elecraft] External Speaker details

Behringer MS40 pair here - RF proof and best I have found to date. So good that I have stopped looking/building. Stereo and has inputs for a couple of things - so I run the K3 and computer through them. Yes, they are big and do not match the K-Line - but, the station is already designed and

Re: [Elecraft] Maximum SWR for KPA-500 Amplifier without Tuner

Byron; The KPA500 uses reflected power for its fault determination. It will protect itself at 60 watts reflected. As explained in the manual, the protection inserts a 3db pad in the RF circuit, effectively dropping the input power in half. If the amplifier continues to see 60 watts reflected

Re: [Elecraft] TX Power

The problem is different on 80M and 6M. On 80M I can get full power on Normal CW, but not much on CW Rev. The opposite is true on 6M. However, if I reduce the bandwidth so that FL4 is selected instead on FL2 I can get full power on both bands and on both CW modes. If I select Split and use the

Re: [Elecraft] OT - RX Active Multicoupler Diagrams/Design

Some off-list correspondence with Mel K6KBE and Brian K3KO made me realize that the KO6BB design at the second link posted is superior and I will proceed with building along those lines. Thanks / 73 Yngvi TF3Y On Sun, Sep 13, 2015 at 3:02 PM, Yngvi (TF3Y) wrote: > To follow up

Re: [Elecraft] K3: reverse 12 volt supply

Ouch, sorry to hear that. If you are lucky it may have only blew a cap or possibly belted a trace. I would open it up and look at the PA deck to look for obvious damage. As far as future prevention, label clearly and double check.One thing I do not like on the K3 (and mosst radios that use

[Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of RTTY Waveform

Hello Elecraft folk: Just installed my new P3 TX Monitor board that I ordered at Dayton (!). I have been waiting for this capability for the P3 since 2010, so as to enable me to monitor transmitter waveforms accurately like I did in my Heath SB-401/SB303 station with the SB610 in ancient times

Re: [Elecraft] Elecraft SP3 External Speaker details

>I also find the audio system in the K3S to be really nice, specially the >2 channel effect using the AFX feature along with a stereo speaker configuration. This give a nice wide spatial effect to which I find very pleasing. >Thanks Wayne and company for doing a fine job with the K3S and its

[Elecraft] [K3] Width Control and AF Output Level

One of my friend K3 users report that AF output level with 100Hz passband width is lower than with 150Hz passband width. He also reported that a noise like “Ptsu” was generated on reducing passband width from 150Hz to 100Hz. He had guessed that these were specific to his K3, but some other K3

Re: [Elecraft] [K3] Width Control and AF Output Level

RX EQ is disabled when moving from 150 Hz to 100 Hz ... 73, ... Joe, W4TV On 9/13/2015 10:41 PM, Keith Onishi wrote: One of my friend K3 users report that AF output level with 100Hz passband width is lower than with 150Hz passband width. He also reported that a noise like “Ptsu” was

Re: [Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of RTTY Waveform

Hi Luis, As you mentioned, monitoring the amplitude of a properly-functioning RTTY transmitter is not very interesting. Since FSK is a constant-amplitude modulation mode, all you see is a constant-amplitude envelope on the screen. It gets more interesting if there is a problem in the RTTY

[Elecraft] K3: reverse 12 volt supply

Whew! Not a good feeling-but it can happen to any of us, regardless of how careful we are. Elecraft has been very good on suggesting helpful modifications to the radio. Any thoughts? Perhaps an in-line diode? I'm not sure if that would result in a significant voltage drop-just a thought. '73

Re: [Elecraft] TX Power

Sounds like your roofing filter configuration is not done correctly (especially check offsets), or your filter placement does not match your definitions. Something of that sort. This stuff is usually set in the K3 utility. 73, Guy K2AV On Sun, Sep 13, 2015 at 4:16 PM, G3XVR

[Elecraft] FS P3TXMON

FS: P3TXMON incl. DCHF2000. Coupler NIB condition. Will ship USA $160. Sorry NO PAYPAL. Please contact off the list, Thank You Ken Doornbos W7DSZ __ Elecraft mailing list Home:

[Elecraft] P3TXMON

P3TXMON spoken for. Thanks for reading Ken W7DSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of RTTY Waveform

Lu, Without addressing what any hardware/software changes needed might entail, I'd say that you are _not_ "out of line with [your] expectation" Any request for features intended help the operator adjust his equipment for a cleaner transmitted signal is valid in my opinion. In fact, I tip

[Elecraft] [KX3][PX3] Operating tips from the ARRL VHF Contest

I was using a friends KX3/PX3 to operate 6M in the ARRL VHF Contest this weekend. (We were W6ZZZ on Mt Diablo near the San Francisco Bay.) I found a couple of things which others may find useful. (1) iPhone earbuds work as headphones. (2) If you have a PX3 with old firmware, the best way to

Re: [Elecraft] K3 and Yamaha CM500

I use the rear panel mic jack for the microphone, but I use the front panel 1/4" jack (with an adapter for the headphones. I still have a MH2 mic plugged into the Kenwood compatible microphone jack on the front panel. What I get from this setup is: (1) The internal speaker goes on when I

Re: [Elecraft] [K2] LiFePO4 replacement for internal SLA battery in K2

On 9/13/2015 3:23 AM, Bill W4ZV wrote: I understand and agree for your use case of mounting the battery internally in the K2. My "fail safe" is to never use an internal battery and thus avoid issues of fire, leakage, etc. I always charge and mount my LiPOs externally. It's certainly possible

Re: [Elecraft] TX Power

On 9/13/2015 4:16 PM, G3XVR wrote: The problem is different on 80M and 6M. On 80M I can get full power on Normal CW, but not much on CW Rev. The opposite is true on 6M. However, if I reduce the bandwidth so that FL4 is selected instead on FL2 I can get full power on both bands and on both CW

[Elecraft] NAQCC Sprint this Wednesday Evening

The September sprint is this coming Wednesday evening local time (September 16th, EDT - 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM), which translates as Thursday, September 17th, 0030 to 0230Z in all cases. For all the "official" information, please go to:

Re: [Elecraft] [K3] Width Control and AF Output Level

Check if IIR or FIR filtering is selected for the narrowest bands. Also note that the receiver equalizer is not used in the 50 Hz and 100 Hz widths, so if the radio is set up for a boost at the selected pitch frequency, the amplitude will drop. Be sure the receiver equalizer is set to o in

Re: [Elecraft] OT - RX Active Multicoupler Diagrams/Design

I built this one a few years ago and it's been terrific: http://www.w8zr.net/multicontroller/index.htm Brian KB1VBF Sent from my iPad > On Sep 13, 2015, at 2:12 PM, Yngvi (TF3Y) wrote: > > Some off-list correspondence with Mel K6KBE and Brian K3KO made me realize > that the

Re: [Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of RTTYWaveform

Grant, Your not the only one who thinks the same way you do. Gary -Original Message- From: "Grant Youngman" Sent: ‎14/‎09/‎2015 2:15 PM To: "elecraft@mailman.qth.net" Subject: Re: [Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of

Re: [Elecraft] P3 TX Mon: FEATURE REQUEST - Monitoring of RTTY Waveform

But certainly it isn't necessary to wait around for Elecraft to provide. There are all kinds of tried and true and well documented ways to do all of the things. We've apparently come to the point where we expect our radio vendor to do EVERYTHING for us, instead if just doing it for

Re: [Elecraft] [K3] Width Control and AF Output Level

Ummm ... on my K3 [#642 but upgraded by Elecraft and with new synth], the noise level decreases as I narrow the BW, pretty much just like information theory says it should. On the other hand, a CW signal centered in the passband doesn't change much if at all. I'm pretty sure that's how it's

Re: [Elecraft] K3: reverse 12 volt supply

The base K3 is protected by an in-line diode that will not allow reverse voltage to flow. The same is not true of the KPA3 where the reduction in voltage would not be tolerable. The KPA3 is protected by a circuit breaker, but in this case did not trip in time to prevent damage. 73, Don W3FPR

Re: [Elecraft] [K3] Width Control and AF Output Level

Hi Lyle. Thanks for your suggestions. I am going to talk to my friend on them. 73 de JH3SIF, Keith > 2015/09/14 11:58、Lyle Johnson のメール： > > Check if IIR or FIR filtering is selected for the narrowest bands. > > Also note that the receiver equalizer is not used in the 50