Re: [Elecraft] OT antenna question

If your tuner uses disk ceramic caps, as many do, these can be heating thus not being able to handle the RF current. They heat and cool and change value which in turn changes tuning. Replacing them with suitable RF current rated units is the solution. Bob, K4TAX Sent from my iPhone > On

Re: [Elecraft] OT antenna question

On 1/12/2016 10:57 PM, Bob McGraw K4TAX wrote: > If your tuner uses disk ceramic caps, as many do, these can be > heating thus not being able to handle the RF current. They heat > and cool and change value which in turn changes tuning. Particularly if you are using a 4:1 balun! On 40 meters

Re: [Elecraft] OT antenna question

Vic: Sounds like you have some things to check. Joe and others have given good advice. However I question your overall design. It sounds like you have a number of mismatches in your system. For instance is the feed point impedance of your 20M dipole >600 ohms at 40 meters? I think not but that

[Elecraft] Fun with KX1 at Yellowstone NP

I'm in a cabin near Old Faithful in Yellowstone, and had a blast handing out QSO's for ARRL's NPOTA. I used a KX1 running only 2 watts to an indoor wire antenna. Made 158 Q's on 20 meters. For those awaiting LoTW credit for their NPOTA scores, please be patient with me. My paper logs will

[Elecraft] K3/P3-SVGA: Problems with ending Xmtn of stored messages

Equipment: K3, P3 with SVGA board and TX Monitor.  All firmware up to date. I use the P3/SVGA memories for sending my canned messages in digital modes, typically in RTTY using FSK.  I'm having problems with ending the strings being transmitted either by hitting the ESC key or by using "|" at the

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

Thank you From: Walter Underwood To: Elecraft Reflector Sent: Tuesday, January 12, 2016 11:00 AM Subject: Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3? I use Eneloop XX batteries in my KX3 with no problems. They

Re: [Elecraft] Controlled Envelope SSB

I just finished playing the two test files that the author supplied, through the sound card to the KX3 and used the Data A input so that there was no compression or TX equalisation taking effect. I had the scope connected to a sampler on a dummy load and the KX3 set to 14.3 MHz at 3 watts PEP.

[Elecraft] P3 span per band?

It would be nice if the P3 would remember the Span setting on a per band basis. Have I missed a setting? jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] Controlled Envelope SSB

David, Reducing the audio drive level "well below ALC indication" is not a good idea because the KX3 will 'power hunt'. You should have at least 4 bars indicated on the ALC meter with the 5th bar flickering. ALC action is indicated by the 5th bar and above. Below that the "ALC" meter is more

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

Thanks all I ordered the Pro version as they have a little more capacity > On Jan 12, 2016, at 6:30 AM, Harry Yingst via Elecraft > wrote: > > > I finally decided to get some rechargeable batteries (and the KXBC3) for my > KX3. > The Regular Eneloop are

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

i've used these with some success: http://amzn.com/B00HZV9WTM they are 2400mAh, 8 for $20 amazon basics rechargeable. On Tue, Jan 12, 2016 at 3:23 PM Lynn W. Taylor, WB6UUT < k...@coldrockshotbrooms.com> wrote: > The key (and thanks for not asking how I know) is "precharged" vs. > normal NiMH

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

The Amazon specs look good (2400 mAh, 65% after three years), but don’t match any Eneloop model in the chart on the Wikipedia page. They are closest to the 1st generation Eneloop Pro, but that does not have a three-year spec. https://en.wikipedia.org/wiki/Eneloop

[Elecraft] OT antenna question

I'm having a problem which has me stumped. I'm going to describe my complete antenna and feed system because something in it is misbehaving and I don't know what! My system works on all bands from 40 to 10 (or it should). The antenna is a full-size 20m rotary dipole. It is all aluminum

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

The key (and thanks for not asking how I know) is "precharged" vs. normal NiMH batteries. "Precharged" batteries have a far lower internal discharge rate, compared to normal, standard batteries. If you have precharged batteries (like the Eneloop XX), your KX3 will work when you pick it up

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

Both Eneloop and Amazon batteries are NiMh. They can be changed with the same changers. Whether they are same manufacturer I don't know. Juliean KQ2Z Sent from my iPhone > On Jan 12, 2016, at 3:58 PM, Cory Hendrickson wrote: > > I've not confirmed this, but I have

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

I've not confirmed this, but I have heard AmazonBasics rechargeables are re-branded Eneloop Pros. Might save you a few bucks. http://www.amazon.com/AmazonBasics-High-Capacity-Rechargeable-Batteries-Pre-charged/dp/B00HZV9WTM/ref=sr_1_3?s=amazonbasics=UTF8=1452632215=8-3=amazonbasics+batteries On

[Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

I finally decided to get some rechargeable batteries (and the KXBC3) for my KX3. The Regular Eneloop are 2000 mAh and 1000 recharge cycles The Eneloop Pro's are 2550 mAh and 500 Recharge cycles. I'm not really concerned about the difference in recharge cycles so the Pro's look like the ones to

Re: [Elecraft] Eneloop or Eneloop Pro Batteries for my KX3?

I use Eneloop XX batteries in my KX3 with no problems. They are a very tight fit, but that is because of the low-resistance contacts in the KX3 battery holder. The 2nd generation Eneloop XX were renamed “Eneloop Pro”. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my

Re: [Elecraft] Extra K3 Filters SOLD

Both filters have been sold. 73 Bill W4RM -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill OMara via Elecraft Sent: Monday, January 11, 2016 8:11 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Extra K3 Filters I have a few extra K3

Re: [Elecraft] P3 span per band?

Hi Jim, Mine does. Are you seeing your K3 frequency on the P3 display? 73, Mike K2MK Jim AB3CV wrote > It would be nice if the P3 would remember the Span setting on a per band > basis. > > Have I missed a setting? > > jim ab3cv -- View this message in context:

Re: [Elecraft] OT antenna question

It would be very interesting to do that test... key for 10 sec.. if it is possible - on an early morning, that has frost or snow on the spacers...Look for the one that becomes dry or drippy. Have a great day, --... ...-- Dale - WC7S in Wy > To: elecraft@mailman.qth.net > From:

Re: [Elecraft] P3 span per band?

My bad. It does show span per band. Need sleep... 73 jim ab3cv On Tue, Jan 12, 2016 at 4:56 PM, Jim Miller wrote: > It would be nice if the P3 would remember the Span setting on a per band > basis. > > Have I missed a setting? > > jim ab3cv >

Re: [Elecraft] OT antenna question

In addition to the comments already, PVC material is notorious for breaking down under high voltage RF.  Avoid at all costs.  Use Pol-ethylene "rain for rent" tubing.  Works well in high Voltage RF. Mel, K6KBE From: Guy Olinger K2AV To: Vic Rosenthal 4X6GP/K2VCO

Re: [Elecraft] OT antenna question

Hello Vic, It sure behaves like a ferrite core heating up! After that, you must check everything up at the antenna. One thing you might try is to see how long it takes for the VSWR to drop to normal after a long key down session. A long time indicates something with some mass to it that holds

Re: [Elecraft] OT antenna question

Hi Vic, Your story does suggest trouble at very high current points. Just a list of things below I've heard or seen to stir up a new idea or two. No opinion on which if any makes any sense in your situation. - Insect nests in tubular spacers on open wire. Spacers have carbon tracks.