[Elecraft] KX3 batteries

According to the A123 data sheet, their LiFePO4 batteries charging lifetime counted a charge cycle as 100% of capacity, whether you recharged them 25% four times or 100% once. I can't speak for NiMH. 73 Eric WD6DBM __ Elecraft mailing

Re: [Elecraft] KX3 Rechargeable Batteries

I had a pair of huge lead acid AGM batteries die on me after a bit over six years of very light use in a solar panel and battery system. Consulting the factory, they stressed that the batteries were getting cycled each day that the Sun came out and the charger started charging the batteries. I

[Elecraft] K3s SSB transmitting bandwidth?

"This is good data for those running sound card modes such as FT8." If you do FT8 right you only need a TX bandwidth of 500 Hz (low 1,500 high 2000). Any more than that is only needed for those who insist on not using split and more than a few of those are over-modulating and filling the

[Elecraft] 25% off KE7X books

25% off KE7X books, including "The Successful Ham Radio Operator's Handbook" at www.lulu.com. The discount code is Kbye2018. This may apply only for print books. 73 and HNY, Fred KE7X For all KE7X Elecraft books, see www.ke7x.com.

[Elecraft] For Sale K3S/P3

K3S/100-F Transceiver #11139 ATU for K3/K3S, Factory Installed K3 TCXO 1ppm, factory installed 2.7kHz Elecraft Filter K3 500 Hz, 5 Pole Filter, factory installed KRX3A 2nd RX Factory Installed KFL3A-2.7K Filter installed in KRX3A K3 500 Hz, 5 Pole Filter, factory installed in KRX3A K3 5 & 6 pole

Re: [Elecraft] KX3 Rechargeable Batteries

Lots of excellent advice in this post. 73, Jim K9YC On 12/28/2018 8:41 AM, Bob McGraw K4TAX wrote: Something I learned from one of our "tech reps" regarding rechargeable batteries and charge cycles. __ Elecraft mailing list Home:

Re: [Elecraft] KX3 battery problems

The big secret is to buy "pre-charged" NiMH batteries. Normal NiMH batteries will self-discharge in a fairly short period. Low-self-discharge batteries will hold a charge for a long time, and can be sold as "pre-charged" so the consumer can buy the rechargeable batteries they want and not

[Elecraft] Purchase k3 filter

Sent from my iPhone __ 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 by: http://www.qsl.net Please help

Re: [Elecraft] K3s SSB transmitting bandwidth?

This is good data for those running sound card modes such as FT8. Thanks - Bill AE6JV On 12/25/18 at 1:21 PM, rmcg...@blomand.net (Bob McGraw K4TAX) wrote: Just made a quick sweep of my K3S in DATA A mode, no EQ, No SP, and find that it will pass 70 Hz with little to no attenuation. On the

Re: [Elecraft] KX3 Rechargeable Batteries

I think Bob is mainly referring to NiMH batteries. I am not sure about the partial discharges, and whether each one counts as a whole cycle. That is certainly NOT true of lead-acid and Li-Ion batteries, which will survive many more partial discharges than deep ones. Li-Ion batteries should not

Re: [Elecraft] KX3 Rechargeable Batteries

Something I learned from one of our "tech reps" regarding rechargeable batteries and charge cycles.    I have successfully applied his advice for a multitude of and different types of my rechargeable batteries. If you use a battery and then recharge it, that is one charge cycle.   Likewise if

Re: [Elecraft] KX3 battery problems

Hi, Just a follow-up. Put in a new set of NiMh cells and all seems OK. Use of NiMh seems to be a discussion issue, but over here in Denmark we have a limited range at reasonable prices. We don't have all the brands and types as in USA. At least it is working. Thanks to all for their input.

Re: [Elecraft] KX3 Rechargeable Batteries

Eneloop Pro (labeled Eneloop XX for a bit) are rated for 500 charge cycles. Regular Eneloop batteries are rated for 2100 charge cycles but have lower capacity. Choose the one you prefer. I like the higher capacity batteries. The Wikipedia page on Eneloop has a chart that clears this up to some

Re: [Elecraft] [K2] Proper QSK delay for use with KPA500?

Eric, The KPA500 (like all other Elecraft transceivers and amplifiers) uses all electronic T-R switching which is very fast and there is no "hot-switching" The K2 Keyout to start of RF is fixed at about 12 ms. The QSK Delay adjust the trailing hold time for the Keyout after keyup, not the

[Elecraft] [K2] Proper QSK delay for use with KPA500?

I will be using my beloved K2 with my KPA500 this year for SKN. Many years ago I put in an amp key line I think from the 160m board. In perusing the K2 manual, I see the QSK delay is adjustable. What is a safe setting to avoid hot keying? Thanks and 73 Eric WD6DBM