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I have seen some front Bitx panels with buttons. Not sure if they are fast tune momentary switches or not, but after destroying a 10 turn Bourns 10k, linear pot by my miswire error, I thought 2

In doTuning where the pot hits the low stop, ??? baseTune = baseTune - 10000l; ??? frequency = baseTune; This makes sense, drop the center of the tuning range by 10KHz. Where the pot hits

With the IRF510, watch for shrapnel, with that dummy load!!! Marco - KG5PRT

I just got notified my Bitx40 was shipped, looks like 2 weeks more. I have no antenna at my present resting spot, so I have to work on that first! When I was a kid in 1961, I used a 100W light

Ordered: 2/15/17 Shipped 2/27/17 Arrived 3/13/17 S/N n3-268 My Raduino came with a TO-220 style regulator. An upgrade? Now if my dummy load kit would arrive.... James KE4MIQ

I guess what this comes down to is as follows: ?Most of the pot has a linear response as it does now. ?The two ends trigger an indicator of some sort, and then a delay before fast scroll occurs.

I moved my VFO to 19MHz a couple weeks ago and have had none of that nasty SW broadcast interference since. Of course you have to move your BFO to the other side of the filter. That was no problem

My Bitx-40 has loud clicks as I tune and I haven't been able to eliminate them. ?However, I would characterize them as "ch" sounds rather than clicks. ?I've looked with my scope at the two I2C lines

Agreed. ?And there should be some indication of when you move off the linear region of the pot and into auto-scroll mode with enough advance warning that you can avoid scrolling. ?I'd prefer an

Keep in mind that delay() cannot process any interrupts while it's doing its thing. For most people, it's not an issue unless you are using external interrupts in your code. Since I use a rotary

Unfortunately the images he's getting are in the 40m amateur band. ?They cross over at 7.2 mhz, so if you tune into a LSB station at 7.2 mhz you will also be receiving it as a USB station through the

The "auto-scroll" or "auto-step" rate is set in the Raduino sketch to one 10 KHz step every 200 ms which is a little too fast for me. I downloaded the sketch from?https://github.com/afarhan/bitx40 (

Raj: How about an EXTERNAL filter? If that's the only station troubling you then you could trap it out. A bandpass filter for just the 40m amateur band would clean up your signal even further and

A DDS is decent enough, though will have some spurs that the Si5351's PLL's square wave would not have. ?Both are based on a crystal reference oscillator, so plenty stable to run at 19mhz where Raj's

That is a feature. When you reach either end it auto scrolls. It takes time to get use to. Randy, K7AGE

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The sales surprised us; they sold out in 2 days! More boards are on the way. Keep us posted on your build. Also, if there's any "fuzzy parts" in the assembly manual, let me know. Jack, W8TEE To:

Sounds like me, got my board yesterday and now I sit on my hands for a couple of weeks waiting on my parts from china! :-)) Roy, WA0YMH

Doesn't the AD9850 put out a decent sine wave? Jack, W8TEE To: [email protected] Sent: Tuesday, March 14, 2017 10:59 AM Subject: Re: [BITX20] The harmonics are out to play Jerry and pals, I

i am new to this forum.I don't know whether my problems in raduino was raised before. Whenever tuning pot reaches edges, dds vfo is in free running mode... changing frequency either in lower order or