[Elecraft] KXBC3 clock drift

Looking at the schematic of the KXBC3, the real time clock seems to be a part of chip PIC24F16KA10. And a reference to that chip says this: 29.3.9 Calibration The real-time crystal input can be calibrated using the periodic auto-adjust feature. When properly calibrated, the RTCC can

Re: [Elecraft] KXBC3 clock drift

Erik, If you want to experiment with trimming the oscillator for the clock, you can try varying the capacitance of C7 and C8 on the KXBC3 option board. Nominal capacitor values are +/- 5%, so you may be able to find suitable capacitors that vary a bit from the nominal 15pF value that will

Re: [Elecraft] KXBC3 clock drift

Ha ha, a little snarky comment-wise, but it's an annoyance, not a deal breaker... :-) I was just wondering if it was a one-off issue, and/or if there was a possibility of correcting the issue in any way. I've been doing some experimenting with condo patio antennas (hamstick dipole up a

Re: [Elecraft] KXBC3 clock drift

In a recent message, "etks...@gmail.com" writes >When you are logging to paper and have the radio clock displayed for >the specific purpose of having a handy UTC clock it's annoying when >it's off. The KXBC3 is marketed as a battery charger and RTC, and I >bought it for both.

Re: [Elecraft] KXBC3 clock drift

When you are logging to paper and have the radio clock displayed for the specific purpose of having a handy UTC clock it's annoying when it's off. The KXBC3 is marketed as a battery charger and RTC, and I bought it for both. Erik W1QED Sent from my iPad On Aug 28, 2016, at 12:46 PM, GRANT

Re: [Elecraft] KXBC3 clock drift

: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wes Stewart Sent: Sunday, August 28, 2016 7:29 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KXBC3 clock drift And my factory-built K3S. Sometimes I feel like an unpaid beta tester:-) To Elecraft's credit they almost a

Re: [Elecraft] KXBC3 clock drift

It'd draw power and make the radio bigger. On 8/28/2016 9:58 AM, Clay Autery wrote: So you think an onboard GPS is absurd, Don? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] KXBC3 clock drift

And my factory-built K3S. Sometimes I feel like an unpaid beta tester:-) To Elecraft's credit they almost always* fix it in due time. (I keep a spare radio on hand just in case) * still waiting for that VOX/AntiVOX gain setting by mode. As I write CY9C's RTTY signal is breaking up on the

Re: [Elecraft] KXBC3 Clock Drift

This may be a redux of what has already been stated but I am a nut for stability in my radio and my timekeeping. What I have done is purchased a BG7TBL from faymo-trading.service for $150 from Hong Kong (fast shipping and the newest version of this GPSDO). He still apparently is selling them:

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

I wish I would have bought something from them instead of the Leo Bodnar unit. It seems to be fine but the support is lacking. On 8/28/2016 11:16 AM, Clay Autery wrote: Jackson Labs makes REALLY nice stuff... And THAT is not expensive in the grand scheme of things... LOTS of GPSDOs et al

Re: [Elecraft] KXBC3 clock drift

Dave, Yes, the RTC is an "add-on convenience" item for the rig. It is a nice thing to have for logging when operating portable (set it before the outing). As far as digital modes go, the Elecraft gear offers only PSK and FSK internally and as far as I know, those are not time critical and

Re: [Elecraft] KXBC3 clock drift

Re:  "$10 wristwatches are accurate to a few seconds per month." Yep!  That is exactly what the original poster was concerned with.  You said it even better than he did.  The original poster's KXBC3 clock isn't as accurate as a $10 wristwatch.  Mine isn't either, last time I checked it.   The

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

HTs, of course. But I meant HF rigs. Sounds like there may be a few. Phil -- Sent from my iPhone 5S > On Aug 28, 2016, at 13:10, Bill Gerth wrote: > > Hi Phil, > > My Kenwood TMD710GA mobile ham transceiver has an onboard GPS receiver, > synchronized realtime

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

Hi Phil, My Kenwood TMD710GA mobile ham transceiver has an onboard GPS receiver, synchronized realtime clock, AND a packet TNC. Makes a dandy self-contained APRS system. Granted, it is only for VHF/UHF on the ham bands (no HF). It also makes it really easy to set the KXBC3 clock in my KX3

Re: [Elecraft] KXBC3 clock drift

I certainly agree with Jim about liking light weight radios. I take my K3 out 2 or 3 times a year, and being able to easily carry it is very welcome. My KX3 is a perfect airplane rig. But the real advantage of the radios, and the K3 in particular, is their modular construction. When the K3S

Re: [Elecraft] KXBC3 clock drift

Elecraft can explain it. Then we can all get back to our regularly scheduled program, which is already in progress! Dave W7AQK -- From: Don Wilhelm <donw...@embarqmail.com> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KXBC3 clock drift Message-ID: <4e2d

Re: [Elecraft] KXBC3 Clock Drift

into the configuration menu. As I recall it’s in the KX3 Utility as well. Ted, KN1CBR -- Message: 9 Date: Sun, 28 Aug 2016 08:34:22 -0600 From: Ken G Kopp <kengk...@gmail.com> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KXBC3 clock

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

I believe that the IC7100 has the facility, but it's an option. 73, Alan. G4GNX -Original Message- From: Phil Wheeler Sent: Sunday, August 28, 2016 6:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KXBC3 clock drift & On-Board GPS As a matter of curiosity because

Re: [Elecraft] KXBC3 clock drift

On Sun,8/28/2016 11:12 AM, Joe Stone (KF5WBO) wrote: I would say a customer has every right to see the schematic. I think so too, but Elecraft is one of the few mfrs that provides schematics for most, if not all, of their products. 73, Jim K9YC

Re: [Elecraft] KXBC3 clock drift

I have a Seiko watch that is extremely accurate twice a day! You just have to know when to look at it. One day I will put a new battery in it.:-) 73, Don W3FPR On 8/28/2016 2:25 PM, Kevin wrote: Well that's it darn it! I won't be happy with my radio till there's and actual cesium clock

Re: [Elecraft] KXBC3 clock drift

You are both correct -- I live about 20 miles from Eric, 3 miles from K6XX, and know Wayne from many conversations both on and off the reflector, including several in the bar at ham events. These guys are VERY clear-eyed observers of the scene, and I've never seen "worship" of their product

Re: [Elecraft] KXBC3 clock drift

There is an argument that if a clock is included it should at perform as well as we expect from other timepieces. Of course the next step beyond a highly-accurate clock that does not require resetting is to have the K3S able to use that time, read frequencies and signal levels, modes, etc.,

Re: [Elecraft] KXBC3 clock drift

ecraft Reflector Reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] KXBC3 clock drift > > Re:  "...the clock seems to lose a couple of minutes per month.” > You know a radio must be pretty good when the complaints start drifting off to how accurate (or not)

Re: [Elecraft] KXBC3 clock drift

Well that's it darn it! I won't be happy with my radio till there's and actual cesium clock built in or available as an add on option. That'll make my JT65/JT9 signals hyper accurate...Oh wait...that's the computer clock. I *demand* while Elecraft is fixing my radio's clock they also offer a

Re: [Elecraft] KXBC3 clock drift

Never mind... ;-) __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/28/2016 12:46 PM, Rose wrote: > > No need ... my eyes can view a cellphone as easily as on a radio's > display ... maybe easier / quicker if I have to call it up into the > display. (Mine has

Re: [Elecraft] KXBC3 Clock Drift

recall it’s in the KX3 Utility as well. > > Ted, KN1CBR > > -- > > Message: 9 > Date: Sun, 28 Aug 2016 08:34:22 -0600 > From: Ken G Kopp <kengk...@gmail.com> > To: elecraft@mailman.qth.net > Subject: R

Re: [Elecraft] KXBC3 clock drift

Autery ; Elecraft Reflector Subject: Re: [Elecraft] KXBC3 clock drift No need ... my eyes can view a cellphone as easily as on a radio's display ... maybe easier / quicker if I have to call it up into the display. (Mine has about a half inch high display.) That's assuming that the name

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

Jackson Labs makes REALLY nice stuff... And THAT is not expensive in the grand scheme of things... LOTS of GPSDOs et al time/freq standards costing many multiples of that price... :) __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/28/2016 12:17 PM, Peter Pauly

Re: [Elecraft] KXBC3 clock drift

Mike, > The manufacturer specs for all the Elecraft RTC chips promise much better. What Elecraft RTC chips are you referring to? The KXBC3 keeps time using a PIC microcontroller. > ... a customer does indeed have every right to expect a competent RTC > implementation when he purchases the

Re: [Elecraft] KXBC3 clock drift

Funnily enough the IC-7300 guys were complaining about the same thing ;-) 73 from David GM4JJJ > On 28 Aug 2016, at 17:46, GRANT YOUNGMAN wrote: > > >> >> Re: "...the clock seems to lose a couple of minutes per month.” > > You know a radio must be pretty good when the

Re: [Elecraft] KXBC3 clock drift

No need ... my eyes can view a cellphone as easily as on a radio's display ... maybe easier / quicker if I have to call it up into the display. (Mine has about a half inch high display.) That's assuming that the name of the game is simply knowing what time it is, as opposed to "playing" with a

[Elecraft] KXBC3 Clock Drift

, KN1CBR -- Message: 9 Date: Sun, 28 Aug 2016 08:34:22 -0600 From: Ken G Kopp <kengk...@gmail.com> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KXBC3 clock drift Message-ID: <cad4cdtmz9qgej0jpudrwo7kjoa8ik-tep-pq4o

Re: [Elecraft] KXBC3 clock drift

Ditto! Well, actually, I did once have an accurate (for its day) clock on my receiver, my HQ-170AC, back in or about 1964 to 1967. Being run by a synchronous motor, the local power company had the job of keeping my clock accurate (feature of AGC controlling ACE and Frequency). But, today, in

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

Flexradio offers a GPSDO option for their receivers. It's made by Jackson Labs (and it isn't cheap): http://cart.flexradio.com/FLEX-65006700-GPSDO-Upgrade_p_899.html It's internal to the radio. On Sun, Aug 28, 2016 at 1:06 PM, Phil Wheeler wrote: > As a matter of curiosity

Re: [Elecraft] KXBC3 clock drift & On-Board GPS

As a matter of curiosity because I've not looked into it: Are there any ham transceivers with on-board GPS receivers? Phil W7OX On 8/28/16 9:58 AM, Clay Autery wrote: So you think an onboard GPS is absurd, Don? We can dream... we can dream. :-) __ Clay Autery, KY5G

Re: [Elecraft] KXBC3 clock drift

OK Ken... How do you propose to get that "uber-accurate" time from the cell phone into the radio? __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/28/2016 9:34 AM, Ken G Kopp wrote: > Virtually everyone has cellphone at hand and it will provide the most > accurate

Re: [Elecraft] KXBC3 clock drift

So you think an onboard GPS is absurd, Don? We can dream... we can dream. :-) __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/28/2016 9:19 AM, Don Wilhelm wrote: > I would like an icebox in my KX3 to keep my sandwiches cool while > portable. > Oh, and how about

Re: [Elecraft] KXBC3 clock drift

> > Re: "...the clock seems to lose a couple of minutes per month.” > You know a radio must be pretty good when the complaints start drifting off to how accurate (or not) it is as a timepiece ;-) Grant NQ5T __ Elecraft mailing

Re: [Elecraft] KXBC3 clock drift

Re:  "...the clock seems to lose a couple of minutes per month." I didn't buy the KXBC3 for the clock, and I don't expect it to automatically sync with WWV or GPS, but mine seems to be sensitive to applied voltage: If I leave 14v applied to my KX3, it gains a few seconds per day, probably not

Re: [Elecraft] KXBC3 clock drift

I think you overreact a bit, Mike. I can criticize Elecraft with the best of them if a product does not do as promised. But nowhere in any spec or promise have I seen highly accurate time-keeping -- but perhaps my reading skills fail me with age. In my shack I have a large LaCrosse clock,

Re: [Elecraft] KXBC3 clock drift

OTOH, many criticisms have resulted in improvements in the products. Wayne and Eric are quite capable of tolerating criticism, so owners are more than welcome to point out any deficiency or problem. That’s why people like Elecraft products: having the ear of the company. 73 de Ray K2ULR KX3

Re: [Elecraft] KXBC3 clock drift

QSL On 8/28/2016 7:55 AM, Mike Morrow wrote: Elecraft fans often have a great tendency to dismiss without substantive basis any non-worshipful criticism...at least as far as I've observed in 16 years as an owner and list member. :-) Mike / KK5F

Re: [Elecraft] KXBC3 clock drift

> I would like an icebox in my KX3 to keep my sandwiches cool while portable. > Oh, and how about an automatic coffee maker for use during contest > periods. :-) I would be suprised that even as a joke the listing above could win any arguments for the extraordinary lack of performance of

Re: [Elecraft] KXBC3 clock drift

Virtually everyone has cellphone at hand and it will provide the most accurate time commonly available. 73! K0PP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] KXBC3 clock drift

Maybe just buy a $15 wristwatch with a 10 year battery made by Casio and set it every week or so ? :-) Phil W7OX On 8/28/16 7:19 AM, Don Wilhelm wrote: I would like an icebox in my KX3 to keep my sandwiches cool while portable. Oh, and how about an automatic coffee maker for use during

Re: [Elecraft] KXBC3 clock drift

I would like an icebox in my KX3 to keep my sandwiches cool while portable. Oh, and how about an automatic coffee maker for use during contest periods. :-) 73, Don W3FPR On 8/28/2016 10:01 AM, Clay Autery wrote: Mmmm... not JUST the KX3!

Re: [Elecraft] KXBC3 clock drift

Mmmm... not JUST the KX3! __ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/28/2016 8:52 AM, kevino z wrote: > Wish the KX3 had an actual GPS add on board. It could grab the time, as well > as use the PPS for other things. > -Kevin (KK4YEL) > > No trees were

Re: [Elecraft] KXBC3 clock drift

Wish the KX3 had an actual GPS add on board. It could grab the time, as well as use the PPS for other things. -Kevin (KK4YEL) No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced ! > On Aug 28, 2016, at 09:48, Brian Waterworth

Re: [Elecraft] KXBC3 clock drift

I have noticed the same thing. I was portable and wanted to use the KX3 clock to set my Raspberry Pi's clock I was using for JT65. I was shocked at how far afield the KX3 time was. I fortunately had downloaded a GPS app to my smartphone that gave me the GPS system time and this was enough to

[Elecraft] KXBC3 clock drift

I’ve had my KX3 for a few months, got it with the KXBC3 charger and clock. However, the clock seems to lose a couple of minutes per month. Considering the cost of the option I would expect it to be a little more reliable... :-P Has anyone else seen this? Is there an adjustment for drift?