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Hi Richard, Yes, those readings at TP21 are good.? The problem is not with RX muting when not transmitting. The v6 uBiTx schematic is

Tried again this morning, this time on the correct TP, TP21. I have 53.6K on RX, 2.1 ohm on TX. So according to what you (Evan) said, that's right. Everything is right so far, but I have weak audio.

Ashhar, What about a headless trx and operate from phome/tablet/pc etc. Juan

Can the concept of the ?Bitx be used with the SIS5351 as a solo receiver. I would like to build a receiver based on this concept. Either with 12MHZ or with 11Mhz crystals I have for both

Well, I wouldnt wager on that. Though, getting a display to survive a drop test will be tough. The rest of electronics will take knocks and bumps with ease. wrote:

2. Are you planning 'Drop Tests' as they do it for mobile phones? 5 V operation from a power bank would be an excellent idea. [email protected]> wrote:

Zero has more than ample power to run all the core modems and more. I would also add to the list, my own desireables: 1. 5v operation from a power bank 2. Ability to withstand knocks and drops. 3. Low

A Zero might be too constrained. Better a B model - or a carrier board to support the compute modules - which might afford upgradability?

I just checked their webpage. Apparently the only support they offer is this forum here on [email protected]. 73, Richard AG5M

Richard, I do not know about HFSignals support.? I would try again.? They have had server issues in the past. 73 Evan AC9TU

BTW There is a lot of good sBITX info on JJ's discord, https://discord.gg/tCCjw5g5Pf including a thread on the Pi 5 in

Thanks Evan. I will measure resistance at TP21 and report. I do notice I have good volume (sidetone volume) in TX. Too much actually. BTW, I sent a note to support@.... It bounced. Know

Inf on using a Pi 5 in? the sBITX. Pi 5 With sBitx ( https://github.com/drexjj/sbitx-ham-apps/wiki/Pi-5-With-sBitx ) -- 73 Bob? KD8CGH

At our local Microcenter store the Pi4B, 8 GB is $64.99 and the Pi 5, 8 GB is $69.99. The Pi 5 is faster and it includes a RTC, eliminating the need for an extra module and its board real

Richard, I apologize.? It is my turn for a typo.? The resistance measurement to ground is at TP21.? Q74 acts as a switch that grounds TP21 to mute the audio when transmitting. 73 Evan AC9TU

That board is unusual - I had seen it but forgot about it - it has a USB3-connected SSD, with an NVMe interface built into the board. The USB interface really cuts into performance, but it is the best

Hi Ken, My terms may be wrong, but NVME drive interfaces are listed with USB 3.0 interfaces for the RPi4.? I own 2 of

Sorry to be "that guy", but the RPi can only use a USB3-connected SATA SSD, the RPi 5 has on-board PCIe interface that supports NVMe SSD. Some people confuse the form factor of the SSD, m.2, with one

Taking another run at this, I confirm I have Zero volts RX at the gate of Q74, if the gate pin is the one closest to D14. And I have 5 volts when in TX mode. Given this information and what's noted

An RPi 4 consumes aprox. 600 mA the RPi 4 about 800 mA, the additional power supply requirements are to allow the RPi 5 to make more power available to USB-attached devices. This chart has actual