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If your zBitx is heating up try this small magnetic fan. Works well. ?: https://a.co/d/gF3w6X1 i hope this link works. If not due a search on Amazon.

Try this small magnetic cooling fan: https://a.co/d/gF3w6X1

Could the zBitx display Pico code be modified to show the Raspberry Pi desktop on the internal display?

This should guide you - it needs to be done from a comand line https://raspberrypi.stackexchange.com/questions/11631/how-to-setup-multiple-wifi-networks 72, Jody -K3JZD

It might be OK with 10 V but it’s so easy to get that down to 9.3 or so that why not? Find yourself four or 5 A worth of silicon diodes (either in one of them or in several in parallel) and use it

Ooh, did you order one of these?! -- Buddy Brannan, KB5ELV, WRVB670 - Erie, PA Email: buddy@... Mobile: (814) 431-0962

Sorry to change the subject (slightly), but I'd like to know how far outside the specs in the manual we can go with power adapters.? The zbitx manual says 6-9 volts is preferred.? Will a 5V or a 10V

Gordon, Understood, but you are describing concerns about "power consumption" which just part of the "power efficiency" calculation. I've heard people talk about consumption all the time, but not

Ken, anybody who’s having to work off batteries thinks this way. It’s a very important parameter to them. I suspect the people who pay the light bill for 50 kW transmitters also think this way;

When you talk about efficiency, what are you actually talking about? When I discuss efficiency I'm talking about a power source - 120 v, 3 amps in, 12 v, 23 amps out, for example. I've never seen

Thanks!? Just wanted to double check - that's what I was seeing, but seemed high.

I'd like to add a second wifi network so that when at home it connects to the home network but when I'm away it would automatically connect to my phone's hotspot. Looks like tools like nmtui, etc are

You folks are going to fix this I’m convinced of it. More power to you! I would be trying to help you, but obviously you know what you’re doing and I’ve got students getting ready for final

Peter, My response was based on your first message, bit your second one, where you profiles the various function in ui_tick().? ?I used the brute force approach to get rid of everything except

Hi Peter, That? is essentially what I did - there is an existing global variable (in_tx) that is True when in Transmit Mode.? In the existing code, once the key down is discovered (which does not

Peter , will it help to use the timing implementation from WiringPi? https://github.com/Pi4J/wiringPi/blob/8d188fa0e00bb8c6ff6eddd07bf92857e9bd533a/wiringPi/wiringPi.c#L2114

Hi, digging deeper I was profiling the sbitx binary, and for better profiling support, I put the different parts of the ui_tick in own subroutines, so they can be identified separately at the profiler

I have no time yet to involve into investigating that problem, but can't the libgpiod functionality of reporting the timestamps of the pin state changes be used for that?

Fascinating.? Sure the waterfall is able to be eliminated and is a good idea.? Is the big yellow display of the dots and dashes worth eliminating, too.? I sure don't need that, although it could be

Hi Jody, very interesting, thank you! If you managed to detect key-down very fast with an IRQ handler, wouldn't it be sufficient to exit/skip time consuming tasks in ui_tick()? I mean setting a new