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Hi Daniel, Using RIT with the CEC firmware sounds like an interesting solution. (With the transmit frequency shown on the dial) Tom, wb6b

Thanks, Allison. The 2n5179 is actually a 12v part for Vceo. Since I run a 12v regulator to power the mainboard I'm not too worried about exceeding this. Next time I pull the mainboard I may stick two

Just to be safe, I mounted my irf510s (isolated) to the case.? In 2 months, I've had over 500 FT8 QSOs with no problems. Tom AB7WT

John: I use a Raduino as a VFO for my 4SQRP ZZRX-40 DC receiver. Works very well. I am using a modified version of Allard's v1.26 software used on the Bitx40. Made a few changes to tune 7.000 to

Had a QSO with Jerry in Iowa, Heard another 0 station, but could not get back to him. Does anyone else here the "buzz" that repeats every 8 minutes? WS4JM

Hi Dave, The CEC firmware does not totally "fix" the issue, but if you use the uBITX Manager software software it can change the CW frequency display to the transmit frequency. Just kind of moves the

Yeah Tom, I'm using CEC firmware because it solved my problem with the paddle on the original firmware, now it just works perfectly (well, the paddle...). Not to mention all the new features. Dave,

Thanks Allison, Did a Google search as well, found many manufacturers for the 70MHz, or about, frequency, one even here in Greece (

I looked to see what purchasable. Fox 70mhz 15khz 35$ each... compared to the more common 45mhz from the same source at 6.35$? indicated relative cost.? I'm sure they can be had cheaper. That is

same here....nothing on the whole band. don

Nuttin but noisze here, and a lot of it! Anyone else on? -- John - WA2FZW

Its not a drop in.? The filter would likely be hard to find and costly or for a one off salvage from? an old junker commercial radio.? I think Kenwood radios used a 63mhz filter or maybe ICOM.? so

Another set of eyes on this, and I concur with Howard.? I didn't see anything obvious that would have caused damage to the Radunio/Nano where TX works and RX is not working. I would imagine that this

Is it only the cost of the higher frequency IF XTAL filter and the accompanying semiconductors of the driving chain that makes the route of first IF freq. elevation to 62MHz or higher not appealing?

Good, You want to look at 28mhz and what every power you get. IF the mic gain is low its not too bad (amplified mic or added preamp) if it high? it will be there. Not an issue on 80 through 20.

First do Q90 with a UHF part then 911/912.? I'm not sure of the 2N5179 not for power but for voltage as its a 15V part if memory serves.? I use it for wideband low power amps but at 12V max. With

OK. I will try to keep it simple. Lets take the example of Q10. It is not straight forward to calculate its operating point, because the bias voltage depends on the collector current, which is a

Thanks Howard for all your help. By shifting the connectors my first thought was that the transistors should not be affected, but who knows. Yes, I just have to go the hard way and measure as good as

Sorry you are having this problem. If you shifted the Raduino1 connector, and the transmitter is really working, I don't see how that can cause your problem since all the signals must be working for

Thanks Howard for the hint. But the result is just the same. I am afraid I destroyed some component (the raduino?)