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It seems you disregarded my previous messages on the subject. Oh well. I encourage anyone to find me one, ONE NCR18650 cell that would fail explosively when stressed with short circuit, overcharge or mechanical deformation. There's a good reason why Tesla use them in their EVs. Li-Ion cells...

When left undecided, consider the following numbers: LiFePO4: Typical cycle life: 2000 Density: 90-110Wh/kg Availability: scarce (in cell form) Price: approx. 1.2Wh/$ Li-Ion (LiNiCoAlO2): Typical cycle life: 500 70% SoC cycle life: 1200 50% SoC cycle life: 2000-2500 Density: 200-270Wh/kg...

Just one PCB will do for 2P configuration. Two PCBs might interact with each other's short circuit protection.

Even LiFePO4 cells don't achieve 7000 cycles. For QRP rig those parameters seems quite excessive (max. 2.2A), and a noticeable tradeoff for parameters not required out of weight/size constrained rig. Even if 26650 LiFePO4 could pull off 7000 cycles, at 2.5Ah and 90Wh/kg (Titanate can pull off...

26650 constitutes only battery size - what chemistry would you use to get 7000 cycles? In LiNiCoALO2, 5500mAh would be one of the highest capacities. More economical solution, which wouldn't require considerable level of modding would be to add 6 more 18650 cells on the bottom. NCRs might give...

Upon further investigation there no "internal charger" to speak of. The 817 dumps approx. 250mA into the battery connector for a set period of time. (regardless if the battery is present or not, 70mA is used for the display and LED in off state). NiCd and NiMH can 'cope' with it, as when fully...

Please elaborate on this (rather generic) statement. Li-Ion cells should be charged with a combination of CC/CV or just CC without reaching saturation phase (which starts around 4.1V). Full charge to 4.2V must have cut-off current (usually 85mA), otherwise the cell might be damaged. However in...

I'm not sure how charging circuity works on 817ND, but when connected to regulated power supply, it draws constant current of about 320mA during charging in power-off state. This would make it suitable for charging li-ion cells without any additional controller circuity, provided the input...

Then a rational resampler?

OK, thanks for proving me wrong but.. I don't quite understand why should I bounce the stream into a file first, if I'm going to use it unchanged through File Source, wouldn't it do the same thing as using Audio Source? As long as there aren't buffer underruns, it should work fine, no...

I/Q datastream is generated on the fly, going offline shouldn't be necessary if I understand the process you described. So "Soapy SDR Sink" block assumes 2ch input with Left channel as I and Right channel as Q? If that's the case, then this flow should work: Audio source > Converter (to Complex...

Sure, but how low can you take the settings? 0.05W, 0.001W? I don't have 817ND here to test.

Hey, what's the lowest power output FT-817ND is capable of after tuning up HF1,2,3-L1 in service menu? Tnx

Hi, For several months now, since I purchased LimeSDR Mini, I have been unsuccessful at transmitting. The plan is simple - I have a I/Q stream from virtual soundcard (L = I, R = Q) which I simply need to "place" on the band. Turns out that such task is so difficult that nobody on MyriadRF...