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Some revisions of USB can do Power Delivery (Pd) where the device can ask for a different voltage than the default 5V. Some (QC) can do 9 and 12, full USB-c Pd can do 15 to 48 V in 100 mV steps:

What is a PD trigger? Thanks. Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ Sent: Sunday, June 12, 2022 10:27:12 AM To: [email protected] <[email protected]> Subject:

Brian, I bought it from eBay: User ID sunillakhani ( https://www.ebay.com/usr/sunillakhani ) Unfortunately, I do not see any blank cabinets for sale today from them today, but perhaps they will have

I replied to this thread, but for some reason my reply posted as a new thread. Here is the link /g/QRPLabs/message/86788 -- 73, Dan - W2DLC

Mine arrived last week here in northern Germany. €1.46 customs and €6 storage. German post service. Paul DJ0CU

I run my QDX at 9v (actually 8.87v) using a 65W Dell USB-C laptop power supply and PD trigger. It's a quiet and cool solution. I took the Memorial day holiday weekend to build it. The build went

Doug and Larry, How about a stack of 3 - 30100104 prismatic cells - 4 inches by 4 inches by 3/8 inch thick, 4 amp hours. The cells with that part number have protection boards installed in each one.

Hi, Charles The answer is: how long is a piece of string? Hans has tested the units at infinite SWR, both open and short, without failure. I think the failure issue is if the antenna has a very high Q

Hi, Gianpi The next thing to check is whether or not the volume control thinks it's a volume control. Measuring from the three lugs on the control to ground, one should check zero ohms to ground, the

You could use a "new age crapy 3D print" as a template for the cutting. Also Hans has printed the display outline on the PCB's : https://www.qrp-labs.com/images/qcx/photos/1.jpg which allows easy

Hi Jim, Wow! A beautiful looking rig. Could you tell us where you got that blue/white project case? Thanks and 73, Brian G3ZOH

I trimmed my attic dipole and rehung it so it is now resonant on 7.078, no more sketchy homemade antenna tuner.? My rig is now a RPi400 (or headless RPi4), a QDX and a dipole. Pretty simple. I am

Doug: definitely consider a 3x18650 battery pack rather than 8xAA.

W9UHU, I really like your implementation. Really makes for a compact portable kit. Had you given thought to a rechargeable battery instead of the Lithiums? -- 73, Dan? NM3A

Never more than 3-1 Should be less than 2-1. Lots of small tuners will get you to 1-1 Non resonant antennas cause all sorts of non wanted problems. Gary W0CKI

It¡¯s my pleasure Tim. I am glad you like it. Colin K6JTH

Hi gang, I am not planing to cheat Hans on his wonderfull case for the QCX mini, just because I am so penny-wise that I do not buy his tight-fit-far-east creation, but I need a custom enclosure to fit

I did some tests a few years ago using thin twisted pair of wires. The wires can be run very close to conducting surfaces and walls and floors. The wires I used gave an impedance of about 120 ohms. I

Also notice the pegs used to semi-protect the control knobs on the front and back panels. Just long metric screws in nylon spacers from Ace Hardware.

Tha ks for your message Roger.... But no GPS plugged.