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Joe I am contemplating same thing. Note the? nd6t website shows 2 different agc designs, and note the link to adding an RF gain control. This is one candidate location for the mosfet attenuator,?

Bruce I would like the details also. I am on QRZ or Olson339 at Comcast dot net 73 Art N2AJO

Hi Jack: I'll send you the details directly since this thread is off-topic.? Anyone else who is interested feel free to drop me a line. 73s, Bruce KC1FSZ

The crystal is not "bad"? http://www.hamskey.com/2018/05/frequency-adjustment-of-ubitx-si5351.html

it may interest the group, last year wes and bob drove me through the erstwhile Tektronix campus in Portland. Wes told me how tek pushed the technology envelope. they invented many things from storage

i must have a bad 25 mhz crystal? i will try to get closer to 25 mhz and see if that does the trick. --- This email has been checked for viruses by AVG. https://www.avg.com

Being 1khz off is not "normal". It needs master calibration adjusted,? NOT BFO CALIBRATION. Mine is hardly ever 10 cycles off.

THE BOX ABOVE THE uBITX IS MY HB DIGITAL WATT METER AND SWR BRIDGE. THANKS FOR THE REPLY. W4NFR

Ben, NO5K, also ran some LPF Transmission Charts on a "pristine" V3.0 board followed by ONLY changing the the relays to AXICOM relays .....same fixture setup, same cables, same test gear. The plots

I am pretty sure the .1 is .1uf =100nf. I agree with the 100 volt

I spent a decade sitting in front of a 2465. A very nice scope, you did some good work! Jerry, KE7ER

Hi, Benton here, speaking from a 35+ Tek career completed earlier this year...? ?I spent my entire time there writing SW for mid-range o'scopes, starting with the 2465 and ending with the '5 Series'

You need to calibrate the VFO. -- N5KBP

In my RF labs, every bench has… at the minimum (entry level) a Rigol DS1054 4ch 50MHz scope, a Rigol DSA815 1.5 GHz SpecAn with tracking generator, and a Rigol DG1022U 2ch Arbitrary Waveform

Has anyone with more experience looked at the Seeed Studio RF Explorer series of Spectrum Analyzers? I have one and on the surface looks like it does the job, especially when connected to a PC. I did

Did you check the 25MHz calibration of the si5351? If that's off, everything will be. Also, what is the box above your uBitx (the one with the display that has PWR:0 SWR: 0.00 and RF: 0.0)? Vince.

0.1 = 100uF, 100 probably = 100V Bill VK7MX

Thank you all, your advices will be very useful to select the appropriate model. As for the possibility of a kit, if we are talking about assembling ready made boards I would be more than interested

Was it? in fact? use of a? switch mode power supply that caused this or is the problem on going ??

I like the ND6T but I think Id rather have an audio agc. How would you wire this up? In a V3 board?? Joe Sent from Mail for Windows 10 Sent: Thursday, November 8, 2018 2:23 PM To: [email protected]