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Many thanks Joshua ! 73, Jamie WB4YDL Sent: Tuesday, January 24, 2023 10:02 AM To: [email protected] Subject: Re: [QRPLabs] QDX pairs nicely with the Micro PA50 James, Here is the link:

James, Here is the link: https://www.aliexpress.us/item/3256804580861697.html?spm=a2g0o.order_list.order_list_main.18.4dac18027y5r58&gatewayAdapt=glo2usa&_randl_shipto=US You can manually change the

Phill, Just a couple of things: - Get the newest flrig alpha from www.w1hkj.com/alpha/flrig. It has a fix in flrig that affected the audio quality with firmware over 1_05. - in Wsjtx select the rig as

Well it didn't go quite as well as expected. FLRIG and FLDIGI worked using QDX as transceiver in FLRIG. WSJT-X and JTDX both receive fine but fail to turn on TX on the QDX. Looks like some

You might try using your 15MHz reference directly.? I know the '5351A isn't exactly specified for this (other devices in the family are though), but I send a 10MHz 3V-logic-level clock to the '5351A

Hi folks - Sharing this repair experience in case it helps others or if anyone has further advice to add. After a couple of days working fine on 20m and 40m my QDX stopped transmitting and battery

Hello Halden 30MHz was tried before. The Si5351A works but the spectral purity is greatly impaired. U3S would work too if you set the reference to 30MHz. But as I said if you put a spectrum analyzer

Not in my corner of the Internet, ‘only’ 8 of the plastic case, but lots of the aluminum. Both available Prime delivery Wednesday. You’re on your own for dense fog. ? 73, Willie N1JBJ

Hi Howard, thanks a lot for sharing, that looks very nice ans inspiring. Best 73, Fred, HB3XBA

Hi Ron.? I don't think those frequency error examples are the best I can do if I switch to the Adafruit library, which seems to allow easier direct? manual control of some of the parameters Using

That is the one I am using ... works just fine. w2jc

There was some extended chatter about winding toroid coils a few weeks back, here: /g/QRPLabs/topic/95276160 I sure learned from it.? I wound about 20 toroids for the VFO sinewave

As others have said, the coax is usually RG174.? Because the antenna is active, i.e. it has an internal amplifier, loss in the coax is relatively unimportant.? I believe a 5m run would introduce

I have wondered if the Superbat coax products available on Amazon are good quality or not. The brands that I know are good are Belden and Times Microwave (an Amphenol subsidiary).? But they're more

Yes Gyula, that seems to be it, thanks.?? It doesn't allow assigning even integer output dividers but I probably remember wrong.? It does seem to use even integer output dividers if possible.

I have a stable reference oscillator on 15 MHz.? I could double it to 30 MHz without too much trouble.? Has anyone here tried feeding 30 MHz into the Si5351A on the U3S?? Hans, will the U3S

Well it's marked as currently unavailable and no date for when it will be back in stock and have you checked it doesn't produce a dense fog of RF interference?

That should be fine, I would probably get the one with the aluminum box, but that’s just me. You still have to wire it up, but that’s not hard. 73, Willie N1JBJ

I've seen lots of folks recommend various DYI solutions that involved buying a basic "Buck-buck" circuit board off Amazon and then wiring it up, and then placing it in a smallish container. Is there

Well, thinking more on this, unless the PTT activation changes the band to the correct one in the amp, even delaying the RF won’t help. I have seen little amps that you change the band manually with