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Hi, There is also the question of the load and it's bandwidth. I got bit by all of those "features" decades ago. 73, Bill KU8H -- bark less - wag more

Right Mr Tom , i'm using 1:1 scope probe, and the bandwidth specified for the scope is 20MHz.

take an alligator clipped jumper wire and bypass the LPF section - get as close to the receive mixer as possible - and see if you have signals. idea number 2 is that the LO is not getting from the PLL

I have not done this yet, but I am so tempted to add a small fan - but only use it when running digital modes.? For CW and SSB I sense the small heat sinks are just fine. 73 curt

The individual heatsinks are cost-cutting and ease-of-manufacture measures.They are necessary because the mounting tabs are directly screwed to their heatsinks and so electrically connected. Mounting

Do you group owner, please ban me and remove me from this group someone has hijacked my address, and is apparently Spamming the group with useless trash. So sorry this is happening I am not sure how

No, the drains are connected to different ends of the output transformer.? Just add an isolation pad and screw insulator and you can mount them both to the same and even grounded heatsink.

Luis, On the mention of the decode of CW, I think it is all about the settings of the radio on the cw signals. I think maybe we have to learn how to set it to decode cw, perhaps incorporate a filter,

I am aware that grounding the heatsinks is a no-no, but can the finals share the same larger ungrounded heatsink? TNX Tom AB6TN

Luis, I forgot to mention, I did try to match the color of the wires in the diagrams to my setup and also labeled those wires as to the pins they plugged into. I did solder to the pins A4 and A5 on

Luis, On the settings I think you are talking about the S Meter settings, am I right? I check marked the box and used the S meter assistant button. It inputted the values 1-233 in the boxes from 1-8

What is the bandwidth specified for the scope. The scope will already be down 3DB at that frequency, and the waveform will start looking more like a sine wave because the scope won't have the

I'm using a small? DIGITAL STORAGE OSCILLOSCOPE .

Thanks Mr Even Hand !!

Hi, I wonder what you are using to measure the output. 73, Bill KU8H -- bark less - wag more

You might want to try this group, as it is more into sweeping frequencies with the Si5351. /g/Antuino/messages The equipment there is the HFSignals Antuino designed by Ashhar Fahran (

Hello, This is my first time that i'm asking for a help, When i generate a sweep signal (40MHz-70MHz) with si5351A, the voltage output decrease from 3v ppk to 0v5 ppk. please? how can i resolve this

First off I would suggest updating to the KD8CEC version 1.2.? That is the current release for the v5 uBiTx.? Be sure to get the v5 software, as the v3 or v4 have incorrect IF (clock#1) frequencies

Yesterday I assembled ubitx version 5 kit in a cabinet (purchased during LARC19 ) after a longer wait in my shelf.... everything is ok...But the issue is very low audio... The firmware is V1.122 for

No reception of uBITX v5. The frequency is tuned, the volume changes when the control is rotated, when the antenna is connected, the noise does not change, reception - no! Tell me where to look for