Recent content by AntronX

screw type, use ferrule on stranded wire only: screw type with insert for stranded wires, don't use ferrule: clamp type "wire to board" terminal block, don't use ferrule:

80m band abruptly went dead coinciding with blue/green line spike representing GOES proton flux. I guess we got hit by CME particles and it energized the D layer to midday levels.

CME induces DC in long distance transmission lines saturating cores of AC transmission line transformers and damaging them if not disconnected. It won't affect your home PV wires since they are not long enough.

106F or 41C sounds normal. Fuses have to use thin metal conductor so it can melt in event of over current. That thin conductor will have higher resistance than your cables and will run hot.

It's offgrid, pump motor is DC brushless more efficient than induction motor. It also pumps slower than typical pool pumps (~600w vs 2400w) which lowers water velocity and reduces water friction losses. But overall it still produces clear pool water at fraction of energy usage. My friend runs...

Friend of mine got this pump 8 months ago. Replaced 10A 240V pump. Runs on 4x 230W panels in series. Energy savings have been ~300kWh/mo. Should have paid for itself by now.

Yes absolutely. I thought that's what you were going to use.

That one was meant for continuous operation in line with PV input to reduce short circuit current if things went wrong with MPPT, not as precharge resistor. You need to use 10 ohm resistor for precharge. Explains big spark you got. It passed ~450A on contact. Better than nothing but still too...

What value resistor?

I literally proven it does not matter in 1st post of this thread. I guess gut feelings are hard to shake off even when faced with contrary evidence.

There was another opposite direction path to another LTE cell on a grain elevator. Most people around there bought data limited cheaper plans. I was lucky to grab true unmetered unlimited plan right before they got discontinued. Was only $20/mo for 2 SIMs (phone and 4G modem).

Would have to design some form of VCO for clock oscillator to get that frequency shifting.

That's called HF start. It sends high voltage pulse (few kV) through the torch to start the arc without tip touching the work piece. Is activated by trigger button on the torch or using lift start function.

High frequency inverter switching squealing is barely noticeable over outdoor fan noise. They have sound insulating mat around compressor to attenuate it. Other noise was from water getting flung onto condenser coil by the fan. It's not bad either. Can't hear either of those indoor.

Phone not included. Deal breaker.