Re: [Elecraft] KX3 Suggested External Battery

On Mon,4/25/2016 10:33 PM, Walter Underwood wrote: You could carry 9 Ah of non-rechargeable AA’s for less weight (12 oz.) than 3 Ah of rechargeable LiFePO4. Yes, BUT -- you can recharge the LiFePO4 batteries 2,000 times. Those non-rechargeable batteries can be used only once. 73, Jim K9YC

Re: [Elecraft] Sherwood's receiver performance table updated

On 04/25/2016 10:26 PM, Walter Underwood wrote: Are you confusing a direct conversion receiver with a direct sampling receiver? A super-het (K3) or direct conversion (KX3) receiver is a heterodyne system. A direct sampling receiver is not. It kind-of is. There has to be some kind of digital

Re: [Elecraft] KX3 Suggested External Battery

Maybe. The batteries in the boxes are kinda heavy. For a shorter trip, non-rechargeable lithium AA batteries are great. They are very light, about half the weight of NiMH batteries. At 1.5 V, 3000 mAh, and 0.5 ounces per battery, they have great energy density. A bit pricey, but you could buy

Re: [Elecraft] Sherwood's receiver performance table updated

Are you confusing a direct conversion receiver with a direct sampling receiver? A super-het (K3) or direct conversion (KX3) receiver is a heterodyne system. A direct sampling receiver is not. wunder K6WRU Walter Underwood BSEE Rice University, 1981 CM87wj http://observer.wunderwood.org/ (my

Re: [Elecraft] KX3 Suggested External Battery

On Mon,4/25/2016 4:57 PM, TFJM via Elecraft wrote: Any and all feedback would be welcome. If you're going to carry it very far, this is what you want. https://www.bioennopower.com/collections/12v-series-lifepo4-batteries They had a booth at the Visalia convention a week or so ago. Seem like

Re: [Elecraft] Sherwood's receiver performance table updated

A big advantage of owning an Elecraft radio is that you CAN communicate directly with the Owners and Chief Engineer, they will listen to what you have to say, and often modify/upgrade their products based on what they hear from US! Try that with ICOM. Or Yaesu. Or Kenwood. 73, Jim K9YC On

Re: [Elecraft] Sherwood's receiver performance table updated

Yep, I agree and I know you understand my point  73, Robert-KP4Y/W4 Sent from my iPhone > On Apr 26, 2016, at 12:00 AM, Wes wrote: > > I'm not smackin' this tar baby except to note that a direct sampling > radio*is* a heterodyne radio. > >> On 4/25/2016 8:19 PM,

Re: [Elecraft] Sherwood's receiver performance table updated

Interesting Sherwood Receiver Ratings http://www.sherweng.com/table.html Used the following radios at our DX Club station ( 1st place is K3/P3 by our DX operators ) 1st Place --> K3/P3 (upgraded synth) Best NB, Sensitivity and Filtering 2nd Place --> IC-7851 IC-7300 TS-990S ( Sold it -

Re: [Elecraft] Sherwood's receiver performance table updated

I'm not smackin' this tar baby except to note that a direct sampling radio*is* a heterodyne radio. On 4/25/2016 8:19 PM, Robert Vargas-KP4Y via Elecraft wrote: I agree that comparisons between an heterodyne radio and direct-sampling radio is not like comparing apples vs apples.

Re: [Elecraft] KX3 2m Install

Yes, sorry, C180, not C120. Not that I'm complaining, its absence made assembly easier. Re: TO-220. If you look at Fig 24 (bottom of p28) in the instructions, you'll see TO-220 "leaning back" inwards from the side of the case, loosely held by the nylon screw. My TO-220 looked like that before I

Re: [Elecraft] KX3 Suggested External Battery

I use 5500 maH LiFePo4 battery and one 60W foldable solar panel with my KX3 in the field. It gives me 10W around the clock. The battery is under 1 Kg and can be charged with any charger because BMS and protection is all built in. The fastest charging time is only 15 minutes with 20A charging

Re: [Elecraft] Sherwood's receiver performance table updated

Fellas, There's so many directions to look at if you want to play Devil's Advocate to sliced bread, but is it a good argument? In many ways this Icom vs K3s discussion reminds me of someone putting up the merits of their 69 VW Bug against a 69 Hemi Roadrunner: Both are pretty cars in their

Re: [Elecraft] Sherwood's receiver performance table updated

I agree that comparisons between an heterodyne radio and direct-sampling radio is not like comparing apples vs apples. Each of these philosophies/architectures has has advantages and disadvantages at this time, but I'm pretty sure that all future amateur radio transceivers (any radio for that

Re: [Elecraft] KX3 2m Install

Hi Bruce: Are talking about C180 near J4? I'll check into it. It won't be the first time the engineers made a change and didn't realize it impacted the assembly instructions (I'm 600 miles from Watsonville, but only milliseconds by voice and e-mail. Still that can be "light years" at times, Hi!)

Re: [Elecraft] K3: Main RX gone deaf

Then you should check also D25 from the RF board.The easiest way to find out the problem is to inject signal at different point in the rx chain and see where it stops working, or where it starts working,hi! Good luck!BobYO8RNI From: Udo Langenohl - DK5YA To: Jerry

Re: [Elecraft] Sherwood's receiver performance table updated

Yes, quite true. But it is a little hilarious that the only other Icom rig above its own 7300 in the Sherwood chart costs 13 grand At least in the fairly narrow comparison domain of RX dynamic range anyway; to me that's just kind of funny that their high end rigs are outperformed by their own

Re: [Elecraft] Sherwood's receiver performance table updated

I know next to nothing about radios, but here's my $0.02 anyway... 1) My K3s/P3 combo is the first purchase in 20 years or more that I've had absolutely NO buyer's remorse... not even a hint, nada, none... 2) My K3s makes me WANT to become the best operator I can... This arrow is wayyy better

Re: [Elecraft] Sherwood's receiver performance table updated

The fact that you are having this conversation directly with one of the owners/designers of Elecraft and not one of the owners of ICOM is always going to make comparisons inherently unfair. Eric KE6US On 4/25/2016 4:58 PM, Harry White wrote: Wayne, Yes, you missed one thing, the price. I

[Elecraft] KX3 2m Install

Hi folks, Last night I installed and configured a KX3 2m module following the current instructions on the website (Rev C). My KX3 is a recent factory build. Everything seems to be working fine; I haven't actually tried it on-air yet (need to finish my 2m Moxon), but at least I didn't blow my rig

Re: [Elecraft] KX3 Suggested External Battery

Tom, Consider cost vs. need and your intended power level. If you are backpacking in, then weight is a consideration, so LiPo and LiFePO4 batteries are to be preferred. IMHO, LiFePo4 are preferred because they have terminal voltages similar to NiMH ot NiCad batteries and the charging

Re: [Elecraft] KX3 Suggested External Battery

Almost any power supply capable of 9 to 15 volts at 2-4 amps. Any family of batteries in that range will work. I use AGM lead acid batteries for field day. I have a lithium family battery for backpacking. To calculate how much capacity (amp-hours) you need, measure the current draw on

Re: [Elecraft] Sherwood's receiver performance table updated

Firstly, the K3/K3S (without the second receiver) cannot be on more than ONE amateur band at a time. So, why create an artificial "test" that the typical K3 can't even do? Because that is *exactly* what Flex (and others) promotes - multiple "slice receivers" anywhere from 1 to 54 MHz.

Re: [Elecraft] KX3 Suggested External Battery

It really depends on your mode of operation.  The internal batteries do a great short term op.  5 to 10 AHR batteries go longer,  Same with solar panels will let you do daytime and most of the night.  Of course depending on the operating mode. I use a 10 AHR Life type with a 27 W folded solar

Re: [Elecraft] Sherwood's receiver performance table updated

HI Gary: One aspect of the KX3 is that you can get a bare-bones version… at $900.. and you would have a very functional portable QRP rig. And, as finances permit, you can add the options. That way you don’t have to pony up the entire $3K at one time. And, even with the bare bones kit, you’d

[Elecraft] KX3 / KXPA per band power?

Hi, Is there an option somewhere to enable the KX3 to have different power levels per band? This would be very useful if you are driving a big amp via the KXPA100. Is this planned for a future firmware update? Thanks, Tom va2fsq.com --- This email has been checked for viruses by Avast

Re: [Elecraft] Sherwood's receiver performance table updated

Wayne, Yes, you missed one thing, the price. I added all the items up that would have to be added to a factory build K3s so that it could do everything you claimed and everything the IC-7300 can do. Without shipping costs the K3s radio prices out at $5469.65, more than three and a half times the

[Elecraft] KX3 Suggested External Battery

I'm sure this question has been asked many times. I recently bought a KX3 so I'm new at QRP and I'm about to head to a camp ground in a few weeks and go portable. Besides using internal batteries, what longer lasting external batteries are recommended? I hear of Lipo batteries and a slew of

Re: [Elecraft] Sherwood's receiver performance table updated

Wunder, The only reason I can understand is that they can get away by stating that they have an internal ATU. Sadly many hams (particularly newer hams) gloss over the significance of the need for a wide range ATU. They don't discover that they need an external tuner for their "multiband"

Re: [Elecraft] KX3 Memory Question

Don, Thank you. I figured it saved more than frequency. But, what I am looking for is a list of all the settings that are saved. I want to know what the "several other settings" are. Regards, Larry KG7ZSB You cannot live a perfect day without doing something for someone who will never be

Re: [Elecraft] Sherwood's receiver performance table updated

> On Apr 25, 2016, at 4:08 PM, Wayne Burdick wrote: > > - *Wide-range ATU (> 10:1 at 100 W; > 20:1 at low power) and two antenna > jacks I am really mystified about why transceivers include a 3:1 range ATU. It adds $150-200 to the end cost to get an external ATU. It

Re: [Elecraft] PBSK31

Hello Phil, My K2's serial number is in the 5000s so it has the temperature stability circuit built in. I have only just recently started using it on JT9 after some time on JT65. I don't start transmitting until it has warmed up after 5 minutes or so. I first used it outdoors at my remote

Re: [Elecraft] JT65 with KX3

Keith - don't know if you had the temp compensation alignment done but you also need to ensure your PC is accurate, "time wise " - I downloaded this freeware.http://www.thinkman.com/dimension4/download.htm Works well...72 de Jim R. K9JWV Keith Onishi wrote > I am experiencing some

Re: [Elecraft] Sherwood's receiver performance table updated

> Jim Brown wrote: > >> On Mon,4/25/2016 1:34 PM, lstavenhagen wrote: >> Wow, looks like Icom finally made a radio with performance close to the >> humble K3S and K3 + new synth but also looks like you really got to pay >> 'em for finally doing it, at nearly 13

Re: [Elecraft] JT65 with KX3

Keith, Have you done the Extended Temperature Compensation procedure on that KX3? If not, you should do that. It should reduce that drift due to temperature significantly. 73, Don W3FPR On 4/25/2016 6:34 PM, Keith Onishi wrote: I am experiencing some frequency drift on operating JT65 with

Re: [Elecraft] KX3 Memory Question

Larry, The memory will contain not only the frequency, but the mode and several other settings, such as filter settings, Preamp/Attenuator, etc. What is saved should be sufficient to restore most of the parameters to the state it was when you saved to that memory. 73, Don W3FPR On 4/25/2016

[Elecraft] JT65 with KX3

I am experiencing some frequency drift on operating JT65 with KX3 + KXPA100. I was reported that my signal drifted 5 to 8Hz drift during my transmission and noticed almost same amount of drift during my receiving period. Output power was 20W with KXPA100. OSC temp shows 36C on receiving and 39C

Re: [Elecraft] Sherwood's receiver performance table updated

On Mon,4/25/2016 1:34 PM, lstavenhagen wrote: Wow, looks like Icom finally made a radio with performance close to the humble K3S and K3 + new synth but also looks like you really got to pay 'em for finally doing it, at nearly 13 grand for the 7851! Don't be so quick to declare either of

Re: [Elecraft] Sherwood's receiver performance table updated

While I don't disagree with the possibility of your first paragraph Joe, your third one doesn't make a lot of sense to me. Firstly, the K3/K3S (without the second receiver) cannot be on more than ONE amateur band at a time. So, why create an artificial "test" that the typical K3 can't even

[Elecraft] KX3 Memory Question

I have asked supp...@elecraft.com this question more than once and have not received an answer. Maybe the group knows. When I save a frequency to memory in my KX3, what all is saved? Is it just the band and the frequency or do all the other settings get saved into

Re: [Elecraft] Sherwood's receiver performance table updated

On 4/25/2016 4:44 PM, Dave Hachadorian wrote: It's interesting that the 7300's ranking in the table is because of its 94 dB Dynamic Range at 2 KHz spacing. But the footnotes indicate that this dynamic range is with AP+ turned ON. With AP+ ON, minimum detectable signal is degraded by 11 dB.

Re: [Elecraft] Sherwood's receiver performance table updated

True a fully kitted KX3 station will be about $3000, but the KX3 is really a different animal. There is a lot of flexibility with a KX3 station. For emergency power operation the KX3 draws a lot less power on receive. One key feature is Elecraft themselves, somewhat regular firmware (and

Re: [Elecraft] Sherwood's receiver performance table updated

I have no plans to replace my KX3/PX3 with a IC-7300. But I still don't have 100W for it. At home, I use my K3/100 and on the road I'm QRP. 73 Bill AE6JV On 4/25/16 at 1:44 PM, n...@tx.rr.com (GRANT YOUNGMAN) wrote: I think your comparison misses the entire point of the KX3. But in any

[Elecraft] Discover the HF Experience at ARRL Expo in Dayton

Hello fellow Elecraftians (or is it Elecraftors?), I have been on a crusade to introduce new hamsto HF.We just finished our "beta" events in Winnipeg, MB and Framingham, MA... The idea is teach non-hams/new hams about HF, and let them experience some QSOs. We all did it as youngsters at

Re: [Elecraft] Sherwood's receiver performance table updated

This is interesting to follow but well above my full understanding... But how do we come up with a common standard between the two types of radios (although I expect direct sample to improve to a point to become common)? Further from Rob (since we're off topic here): -=-=-=-=-=- How to

Re: [Elecraft] Sherwood's receiver performance table updated

It's interesting that the 7300's ranking in the table is because of its 94 dB Dynamic Range at 2 KHz spacing. But the footnotes indicate that this dynamic range is with AP+ turned ON. With AP+ ON, minimum detectable signal is degraded by 11 dB. With AP+ OFF, as generally recommended in the

Re: [Elecraft] Sherwood's receiver performance table updated

I think your comparison misses the entire point of the KX3. But in any case, you’re welcome to the 7300 I won’t be purchasing or throwing (all 10 lbs of it plus batteries) into my backpack for a walk to the park … :-) Grant NQ5T K3 #2091, KX3 #8342 > > > A quick Google shows a number

Re: [Elecraft] Sherwood's receiver performance table updated

Wow, looks like Icom finally made a radio with performance close to the humble K3S and K3 + new synth but also looks like you really got to pay 'em for finally doing it, at nearly 13 grand for the 7851! But the 7300 looks actually pretty decent performance-wise, so interesting surprise at

Re: [Elecraft] K3: Main RX gone deaf

Gentleman, thanks for all so many replies. Will try to check all ideas tomorrow, XYL permitting ... ;-). 73 Udo, DK5YA P.S.: The issue occurs at the RX IN and TVTR IN ports of the KXV3A too. Am 25.04.2016 um 17:57 schrieb Jerry: Reseat the internal coax jumpers in the surf signal path.

Re: [Elecraft] Sherwood's receiver performance table updated

fwiw, 3 issues concern me about the 7300: 1. Some IC7300 recordings I've downloaded indicated very low AGC Threshold and limited audio dynamic range. There's no control over threshold and slope. I haven't read about any seasoned users fiddling with gain settings to try and milk more audio

[Elecraft] Dayton Booth Help

Elecraft will once again be showing at the Dayton Hamvention, May 20, 21, and 22, 2016. Thank you to those of you who have already volunteered to help in the booth during the Hamvention this year. We can always use more help, so if you have a few hours to help out during any one of the 3

Re: [Elecraft] Sherwood's receiver performance table updated

A quick Google shows a number of reputable dealers selling the IC-7300 for $1500. It has an impressive set of features including a bandscope, 100W, and a tuner. Compare that with a KX3 at $1850 -- $1250 for radio and tuner plus $600 for the PX3. You can save $200 by getting the kits. With

Re: [Elecraft] Sherwood's receiver performance table updated

Very interesting ... pretty good performance from the IC-7300 for an "entry level radio." On the other hand, the IC-9100 should be better than "mid pack" given it's recent design and price - it's even *worse* (both IMD and LO Noise) that that paragon of "high performance," the IC-706mkIIg! 73,

Re: [Elecraft] Sherwood's receiver performance table updated

:) Best darn investment I ever made on a ham radio! Keep the hits coming Elecraft!   73 Gene, N9TF K3S 10057 P3 - Original Message - From: "Wayne Burdick" To: "elecraft" Cc: k...@yahoogroups.com Sent: Monday, April 25, 2016 9:55:57

Re: [Elecraft] K3: Main RX gone deaf

Hi Udo Before you start tearing the rig apart, two ideas:- -is there a big difference for weak signals of say S4? -if not, it may just be the S meter calibration that needs attention. -if so, preamp on for either? Att on for main? HTH Graham On 19:59, Udo Langenohl - DK5YA wrote: Gentleman,

Re: [Elecraft] Poor band conditions? Try the SCAN function

From time to time I set up a wireless intercom/camera ("baby cam") in front of the K3 while scanning. Then I can monitor the action remotely down in the workshop or while working out, fixing dinner, etc. (Now, if I only had a wireless remote control to fully operate the K3's receiver...) 73,

Re: [Elecraft] [elecraft] KXPA100 KXATU PX3

Congratulations, Barry. We should all be so dextrous at 79! 73, Wayne N6KR On Apr 25, 2016, at 2:26 AM, Barry Middleton wrote: > At long last I have got round to assembling my KXPA100, KX3ATU and the PX3. > The only slight problem that I had was with the PX3 as 79

Re: [Elecraft] KX3 CW Msg send

Yes, FAST PLAY is great. I used it on QRPTTF. Barry's request #2 is high on my list too. For K3 and KX3. Repeating: 2. When in message repeat mode, allow for a single paddle dit to silently terminate repeat mode (without actually transmitting or generating sidetone). This would allow you to

Re: [Elecraft] Poor band conditions? Try the SCAN function

I also have often thought that a user settable pause time would be most useful. I usually scan when I'm doing other things around the shack (or in another room), not sitting right in front of the rig watching the scan. 73, Drew AF2Z On 04/24/16 23:42, lstavenhagen wrote: Yes, I use the

[Elecraft] Sherwood's receiver performance table updated

Rob has added the IC-7851, IC-7300, and IC-9100 to his table: http://www.sherweng.com/table.html 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Building K2 SSB unit KSB2 version E

Thanks Don, I reversed the connectors, female = female and male = male now. For everybody when you desolder the connectors used in the K2 for the SSB board for example, the pins are getting lose in the plastic by the mail connectors, take care that they get the same hight when u use them

Re: [Elecraft] KX3 CW Msg send

I would rather prefer a KX-Pod - no-compromise single button functions - without a tuning knob - attachable in place of the KXPD3 - very lightweight (e.g. for SOTA) - using a control cable to ACCx Have you ever thought of such a thing, Wayne? 73 tks, Heinz HB9BCB > Am 25.04.2016 um 13:27

Re: [Elecraft] KX3 CW Msg send

Hi, and in addition: With the Px3 you can program 8 messages with one push of a button. 73 de Hajo Gruss Hajo --- Cela est bien dit, mais il faut cultiver notre jardin. On Mon, Apr 25, 2016 at 2:21 PM, David Anderson via Elecraft < elecraft@mailman.qth.net> wrote: > Barry, > > You can set

Re: [Elecraft] KX3 CW Msg send

Barry, You can set the KX3 up for single button message send. * FAST MESSAGE PLAY: A long-hold of MSG (~3 sec) puts the KX3 into FAST PLAY mode. In this mode, the BAND+, BAND-, and FREQ_ENT switches can be used to play/repeat messages 1, 2, and 3 immediately, without the need to first tap

[Elecraft] KX3 CW Msg send

After spending 7 hours operating in QRPTTF on Saturday with my KX3, I wish for 2 things: 1. Single button press to send cw message instead of two 2. When in message repeat mode, allow for a single paddle dit to silently terminate repeat mode (without actually transmitting or generating sidetone).

[Elecraft] [KX3] More Macro Buttons

I wonder if it would be feasible to have more macro buttons in a future F/W release. Perhaps using the one of the PF buttons to put the radio into “macro” mode and use the number buttons for the macros? Just a thought. Don’t know if it’s possible or not. 73, Joel - W4JBB

[Elecraft] [elecraft] KXPA100 KXATU PX3

At long last I have got round to assembling my KXPA100, KX3ATU and the PX3. The only slight problem that I had was with the PX3 as 79 year old fingers don't work as good as they use to. However after a thorough check to make sure all was correct, I connected it all up, power on and all worked

Re: [Elecraft] Smaller SP3 for KX3

That's what I needed to know. Thanks! On Sun, Apr 24, 2016, 22:40 Wayne Burdick wrote: > Hi Bruce, > > I use the Chill Pills. Very compact, amplified, retractable cords, battery > charged via a USB port, and decent sound, too. > > 73, > Wayne > N6KR > > > On Apr 24, 2016, at