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Sitting here nice and smug having received my tariff free U3S only a week after ordering it. And my 8 watt dual bander for $7 inc shipping arrives here tomorrow. I might treat myself to a nice Cuban

Thanks Erik! I JUST got the notification my mic was delivered. Look forward to trying it with the QMX later today. A question for everyone: what would be needed to make this mic work with an IC-705

Thanks Hans... Bill

I bet you learned more than one thing from that experience. -- 73, Dan - W2DLC

Ah, the Norwegian Blue.? Don't worry, it's just resting.

That's not an argument, it's a contradiction ...

On 4/07/25 I had a CW practice / rag chew session on 20 meters. I worked four stations: Date / Time Call Bnd Frequency Mode Power Rec Snt Name SPC# Comments Off 4/7/2025 14:40 W0GIB 30

Well the QMX masterpiece has pulled off the greatest miles per watt of my life, using my homebrew EFHW. I am still is awe to put it mildly. I worked FR8UA at greyline from Montana for a distance of

When I finished my QMX rev 4, 12v build, it would not mount as a USB drive. I received several thoughtful and helpful suggestions from the community here. Thank you. I followed the suggestions as

I was looking at your spice model and noticed an error. The 1:1 transformer primary inductances are wrong given the secondary inductance of 4.4uh. The primary halves should each be 1.1uh, 1/4 of the

Yannig, good point from Chris about the shown values. And there is an interesting information from your screen shots. The second and the third are showing the 3.3 V working at the limit (Duty cycle

Don't leave USB power test meters in line when you are not actually taking measurements, and when you do, make sure no other equipment is hooked up to the power bank - either before or after the

That's an interesting one. I'd start by checking the actual voltages, measuring using a separate meter.? Check the '+12V', VCC (5V) and VDD (3.3V) voltages at the different input voltages, You may

Hello again, I had the time to think about it further... I can't make my QMX do SSB, I was blaming the microphone but may be there is something else going on. Whenever I do SSB, it is very noisy

SWR is calculated by measuring the forward and reverse voltages obtained from T507 and calculating the SWR from those.? It there's no power out then those values can still be measured, they will both

John I started seeing dead parrots :( 73 DE muhsin TA1MHS

Hello Daniel, I used a microphone from an old Panasonic phone. I don't have any information about it, but I tested it in the terminal and it had very good sensitivity and dynamic range. 73

Muhsin, Others have said 5.5 x 2.5mm works, then their QMX failed. It seems risky to depend on a plug that is not the correct size. When I look at your link I say "It does not have the correct size

If you look into this link, You'll see 3 types of plugs. Only 5.5 x 2.5mm plug works with QMX. This is not what I think, It is what I and other people are using. What we know/read may not be the

Gluing the pieces of the toroid back together is the easiest way and works just fine. 73 Hans G0UPL http://qrp-labs.com https://buymeacoffee.com/g0upl [email protected]> wrote: