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What is the best temperature to use for soldering these 1206 SMD parts?? I have a temperature controlled solder station and set it exactly. Just got the TSW board a few days ago and soldered the

Hi, After seeing how cool the idea of building a transceiver (the QDX) for digital modes is, because they do not require a linear final RF output stage is. And getting five watts out with just plastic

My ill informed 2 cents. It doesn’t support MFSK or any multi simultaneous tone mode. but dominoEX and THOR and Field-Helschriber are all variations of single tone schemes? So they could work,

If you want to use uBiTX just for 70Mhz, easiest way woud be to replace 45MHz filter with a BPF on 70MHz, exclude first mixer and HF LPF, change the PA (3 transistor is enough for around 10W). You

Ken: Our T41-EP uses 1206 SMDs on all boards. After doing a few, you'll see just how easy it is to mount these guys. Given that I'm two years younger than dirt, I find a magnifying headset very

Be careful with those sub $60 rework stations--cheap shutoff circuitry might not shut off power as thoroughly as expected:? ?

Jack, That would have come in handy this past weekend - I went to a Vintage Computer Festival in Wall, NJ and assembled two boards that comprise a mini CP/M computer & storage system on two boards.

Ken: You're going to really like SMD parts...eventually. When that happens, think about investing in a hot air station: This one costs less than $60. One of the features I always look for is an

Jim, Yes, you did - I appreciate the quick response, I'm in negotiations with a recent EE graduate to mentor me though the "1206" part soldering process - I'm good with thru-hole, but this will be

Here: http://www.w0eb.com/ Ken, N2VIP

Hello I would like to order the TSW kit Can you share the link. Regards Laurence KB1HKO

Dear Hans and all, Is it true QDX can not do OFDM or anything other than FSK in transmit mode? Cheers and Congrats! Rafael Rhizomatica

Hahahahahaha! (Cue the drum rolls)! I bought the first one.

Feld-Hellschreiber is a lovely if unusual duck working somewhat like CW with a single tone? ?Would this mode work? And DominoEX is also a single tone, maybe? When I look at THOR it seems also to be a

Are the software resources (e.g., libraries) for the G4 series available? Jack, W8TEE

The STM32F401RCT6 would be a direct substitute; the only difference is that it has twice as much flash memory. Alas, it is just as unavailable. So far as I can tell, the entire STM32F401 family is

[image: image.png] -- Sauda??es fraternais, 73's PY2PVB Rubens Kamimura Técnico em Eletr?nica e Eletrotécnica - Aposentado CFT/CRT-SP: 80254934820 Cel. +55 (18) 9-9819-2225 WhatsApp Em sáb., 9

Hi everyone! I did an antenna analyzer with pic18f250, si5351 and sa612(Ne612). I have a hardware problem. It seems to work fine if I test for example with a impedance about 50 ohms. But when I test

Hi Laurence No. You've heard of the global semiconductor shortage... The STM32F401RBT6 microcontroller in the QDX can't be found anywhere. I can't make more QDX until I can either find some, or figure

Fast indeed... and the checkout kept crashing as everyone was trying to get in (looks like the shop could use a beefier server).? I think I have one ordered, but after all the starts and restarts, I