[Elecraft] Elecraft CW Net Announcement

Good Evening,     A tiny sunspot is fading and moving over the limb of the sun. SFU is at 69 but it did get as high as 76 during the week.  That is the highest I have seen in months.  Some solar wind has fed us ions so let's take advantage of them.  Hopefully the bands won't be too noisy

[Elecraft] Thanks - re wiring for proposed KPA1500

Many thanks to the many people who replied both on the reflector and privately, with a great deal of thoughtful advice. I am now in the process of trying to hire an electrician to come to my QTH – which is 18 miles one way from the nearest town and almost 40 from the nearest city – whereupon I

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

On 4/28/2018 4:55 PM, Don Wilhelm wrote: > Unless the wiring route is short, take Jim Beown's (K9YC) advice about > conductor sizes.  Large conductors are not required for the current > draw, but oversize wire will help reduce the voltage drop when current > is drawn. That's why, for one of the

Re: [Elecraft] Infamous red blinking LED

Many desktops of recent vintage don’t truly go ‘off’ at shutdown. There are mobo elements still powered (by the p/s), including USB. To reset a ‘stuck bit’ the power cord must be unplugged then wait a time period until the caps STILL holding power deplete (a LED on my Asus board goes out and

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Ted, I wonder if the load center panel is mounted on an exterior wall? If so running a penetration from the panel to outside might be better. Then you could route it in conduit or exterior cable routed along exterior to a good spot to bring it back inside at the lower level. That still

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

On 4/28/2018 11:08 AM, Dauer, Edward wrote: > I did think to have a conduit put through the wall to allow antenna > feedline coax to go through; but the electrician who was there said > there is now no way to get a 220 line through the walls without major > destruction. My wife is a now-retired

[Elecraft] Running backwards

Reminds me of my first chain saw - I bought a demo, already assembled, and it didn't cut for beans! Finally noticed the chain was on backwards. George, W3HBM On 4/28/2018 8:08 PM, rich hurd WC3T wrote: At the risk of spinning this off topic, I am reminded of the lesson I learned years ago

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

At the risk of spinning this off topic, I am reminded of the lesson I learned years ago when I drilled a through hole through the foundation for our low voltage walkway wiring. I wondered at the efficacy of my brand new shiny Dewalt hammer drill because it was taking me freaking hours to go a few

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Ted, The routing of the 240 volt wiring is a discussion between you and the electrician - but there is always "a way" - even if that means drilling through concrete (not nice, but possible). Unless the wiring route is short, take Jim Beown's (K9YC) advice about conductor sizes. Large

Re: [Elecraft] KAT-500 Bypass SWR seems wrong

Harv, Have you set those antennas to Bypass using KAT500 Utility? If you have done that, then you may need calibration on the KAT500 wattmeter. If you have not set those antennas to bypass in KAT500 Utility, you are likely to see what you are observing. 73, Don W3FPR On 4/28/2018 5:50

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Ed, I live in a 4 level split. Not a good situation for my knees and running power lines. I assume the breaker box is on an outside wall. Here is what I did . I went outside. My shack in on level three, half buried in soil. Ground level comes up to just below the windows. I had an electrician

[Elecraft] KAT-500 Bypass SWR seems wrong

I've been noticing for some time now, that my KAT-500 bypass SWR seems completely wrong. I have resonant antennas that on other meters and even on my K3 have SWR's that are much lower. For instance, on 40M and 20M I have a beam and a resonant dipole, both of which have bypass SWR's of close to

[Elecraft] FW: How far can the KPA1500 amp be from the PS?

Thanks for the ideas, Mark. The remote software idea is interesting. There is a 220 volt outlet already on the outside perimeter deck, which we had put in for the possibility of someday having a hot tub out there – which we never did. I could put both the amp and the PS in some sort of

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

On Sat, Apr 28, 2018 at 11:08 AM, Dauer, Edward wrote: > Placing both PS and amp where the 220 VAC outlet is accessible is > possible; but then I wouldn't be able to see the amp while operating, which > I would like to do. Wouldn't feel comfortable with a 1500 watt amp

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Use metallic or nonmetallic cable raceway to run the wire on the wall. Its available in many different styles and colors 73 Frank W3LPL - Original Message - From: "Edward Dauer" To: "Dave AD6A" , elecraft@mailman.qth.net Sent: Saturday,

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

On 4/28/2018 11:08 AM, Dauer, Edward wrote: I might bring it overhead (between the finished ceiling of the lower level and the floor of the next level up) but then to get it down to a usable level in the "shack" would require a conduit running down the inside wall surface. That may be what I

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Placing both PS and amp where the 220 VAC outlet is accessible is possible; but then I wouldn't be able to see the amp while operating, which I would like to do. Wouldn't feel comfortable with a 1500 watt amp running way out of sight. It would also then be in the kitchen on a floor above.

Re: [Elecraft] Samuel Morse's birthday (Friday, April 27th); good excuse to break out your old hand keys

Historians, apparently, still argue over this issue. There exists at least two letters in which Vail attributes the new code (replacing the original all number code with corresponding dictionary) to Morse and not himself. So, some historians put a lot of weigh on those references and still

Re: [Elecraft] Infamous red blinking LED

Great news Joe. I'm glad you got it working. There is nothing more frustrating having a problem, knowing there is a fix and can't figure out how to solve the problem. 73, Mark, WB9CIF -Original Message- From: joseph beck Sent: Saturday, April 28, 2018 4:46 PM To: Mark

Re: [Elecraft] Infamous red blinking LED

Mark You’re correct. I removed the P3 and was able to load. Thanks Joe W1GO > On Apr 28, 2018, at 12:41, Mark E. Musick wrote: > > Joe, > I had this very condition last night trying to download the latest firmware > in preparing for the arrival of the KPA1500

Re: [Elecraft] Infamous red blinking LED

Joe, I had this very condition last night trying to download the latest firmware in preparing for the arrival of the KPA1500 today. Like you I tried the EE INit and no joy. I held the Shift/LO button tapped the power button and it would always come back to a blinking red TX LED and MCU LD in a

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

I concur...  Should have replied to the original post.  Sorry. OK...  you NEED 240 in the shack, so if you are going to do it... and you should, do it right. Put a sub-panel in the basement and take at least a 60, preferably an 80+ Amp line from the main box to the sub-panel.  Then hack out

Re: [Elecraft] Use of MFJ ATU on the KX3

John, Yes, I would trust the KX3 more. The KXAT3 can match an SWR up to 10:1 - it is truly a wide range tuner. Use a balun instead of the MFJ-971 to transition from coax to your twin feeder doublet. A balun like the Elecraft BL2 provides a choice of 1:1 or 4:1 ratio. Do not be mislead

Re: [Elecraft] Infamous red blinking LED

Joe, The blinking red TX LED is an indication of one of 2 conditions. First is that the K3 is in TX TEST. Hold the right side of the MODE button to exit from that. The second is that the blinking TX LED is accompanied by an MCU LD indication on the LCD. If that is your situation, follow the

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Ted, I would opt for bring the 220 line into the shack. Ask your electrician about using a receptacle mounted flush on the floor. You have likely seen them used in commercial buildings - conference rooms and other places - the cover plate is usually brass with a "door" to expose the

[Elecraft] Infamous red blinking LED

Hi all, I have the infamous red blinking LED situation and can’t power up the K3S. I simply opened the K3 utility and “badness” happened. Anyhow, I tried the prescribed restart of disconnect power source, reboot computer and holder power button for min 10 seconds. No success. Any other

Re: [Elecraft] How far can the KPA1500 amp be from the PS?

Why not just use the amp as-is near the 220V outlet and run longer RF coax cables to the amp from your operating position? Dave AD6A Sent from my  iPhone X On Apr 28, 2018, at 6:54 AM, Dauer, Edward wrote: The KPA1500 Manual states that “the power supply can be operated

[Elecraft] How far can the KPA1500 amp be from the PS?

I would revisit running a 240 outlet into the shack. You would need very large conductors to have the power supply that far away and laying these wires on the floor would certainly not be aesthetically pleasing. It is sometimes a bit of work and may require some drywall repair however I cannot

[Elecraft] I need a set of side panels for a PX3

I picked up a nice used PX3 which has the Side KX end panels but the unit did not come with the original end panels. If you have a set your not using let me know.  Paypal ready. Rich - N5ZC __ Elecraft mailing list Home:

[Elecraft] How far can the KPA1500 amp be from the PS?

The KPA1500 Manual states that “the power supply can be operated remotely” and that the supplied cables are 66 inches long. It does not say how far apart, beyond the 66 inches, the PS and the amp can be without affecting performance or creating other issues. Does anyone know? There are

Re: [Elecraft] Samuel Morse's birthday (Friday, April 27th); good excuse to break out your old hand keys

I was inspired by Wayne's announcement to setup outside on my back porch. I decided that Morse code is Morse code independent of the key and used a memory keyer and Vibroplex Iambic key. The weather in Texas was wonderful! Calling CQ resulted with several QSOs. It was a fun day. The setup:

Re: [Elecraft] current flow on copper strips

I think that thinking in terms of skin depth, is causing a lot of the confusion here. Skin depth is a consequence of how the fields representing the electromagnetic pulse propagate in the electron plasma of the metal, so is a secondary effect, not a primary one. This whole thing is better

Re: [Elecraft] PTT KEY

Correct Typos sent by my iphone > On Apr 27, 2018, at 22:42, Nr4c wrote: > > Don’t forget if you are operating radio from battery, computer must also run > on battery if using computer to control the radio. > > Sent from my iPhone > ...nr4c. bill > > >> On Apr 27,

[Elecraft] Use of MFJ ATU on the KX3

Just a query about the use of the MFJ 971 portable tuner with my KX3 (fitted with automatic ATU) The twin feeder from the doublet goes into the back of the MFJ which is then attached via coax patch lead to the KX3 I can bypass the Auto ATU fitted on the KX3 menu and manually tune the MFJ