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Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Hi, I've got a couple of these arriving on a slow boat from
By Tom, wb6b · #64194 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Personally, I am happy to see the SA, etc., discussions. While I am not into doing this, it does make me stop and think and I'm learning some things in the process. Also, here and there are some side
By Bob Lunsford · #64193 ·
Re: Good mic for Ubitx and Bitx40
I have had good audio reports using my Icom 7300 mic with the BITX40. Denis, WB8SKP
By Denis <wb8skp@...> · #64192 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Thanks!
By Jerry Gaffke · #64191 ·
Re: New ubitx CW not transmitting
Steve, BINGO!? That fixed it.? Glad it was an ID-10-T error (software developer code name for "idiot" users) and not a hardware problem.? Is there a good PDF user manual for us newbies? Many
By howellubeen@... · #64190 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Hi guys, I've owned an RF Explorer for a couple of years now. It's not a Rigol, etc. But is an extremely useful instrument. The guts is a SILABS transceiver and a PIC controller. See the original
By Allen Hill · #64189 ·
Re: New ubitx CW not transmitting
In the settings menu, you will find the default keying mode is set to use an iambic keying paddle. Change that setting to use a hand key. 73, Steve, N3SB
By Steve Beckman · #64188 ·
Re: New ubitx CW not transmitting
I Have the same problem with exactly the same symptoms. ADC values go from 1023 to 0 when I press the key but ubitx does not go into transmit (no relay clicks). Software version 4.3. Will have to
By Bob Hart · #64187 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
My thoughts are that as long as the cost fits in the cool toy range for your budget, then the RF Explorer is a reasonable way to learn about spectrum analysis without going in to the $700 plus toy
By Evan Hand · #64186 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Given the issues with spurs and harmonics, any talk of cheap ways to do an SA?seems entirely appropriate here.? Perhaps some would prefer not to think about it? A long winded discussion about a
By Jerry Gaffke · #64185 ·
Re: New ubitx CW not transmitting
See attached photos of what I mean about going into "Settings" and the ADC value change when I press the key.? Sorry the poor photo quality.? In the second photo, I press the key and the value
By howellubeen@... · #64184 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Hi Jerry, The HB in HBTE is for home brew. RTL-SDR and those other gadgets are not home brew. It's doubtful they belong there either. Maybe there is an RTL-SDR group somewhere. Since I now see
By Bill Cromwell · #64183 ·
Re: New ubitx CW not transmitting
Hi Curt, Thank you for your reply. I think I have seen the diagram if you want to use a paddle, then you need to use use different value resistors for the dit and dah respectively.? I'll research
By howellubeen@... · #64182 ·
Re: New ubitx CW not transmitting
Hi, I have a V3 uBitX and now running the CEC software. I don't recall an "ADC" menu item so I don't know what that is for. I did just look through the setup menu on mine and I see "ADC line
By Bill Cromwell · #64181 ·
Re: ubitx or bitx 40
I have both. Two different radios. They have a lot ifsimilarities, a lot of differences. If you are only going to get one, get the uBitx as it is the entire HF band, not just 40 meters. -- 72 and God
By Dennis Yancey · #64180 ·
Re: New ubitx CW not transmitting
Hi Bill, Thanks for your reply. Yes, when I PTT the mic (and talk), the unit goes into TX mode and my external power/water meter moves back & fourth.? When I key down on the straight key, the
By howellubeen@... · #64179 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
The discussion here thus far seems appropriate for this bitx20 group. If we're running off into the weeds on SA's much further though, might want to move it over to the HBTE group. Jerry
By Jerry Gaffke · #64178 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Yup, as I had said, filter out the strong signals first. With a signal generator, step attenuator, and RTL-SDR/DVB-T dongle plus upconverter, you could figure out the? response of the notch filter
By Jerry Gaffke · #64177 ·
Re: New ubitx CW not transmitting
Hi Allen, I assume that "SSB is okay" means that you have output when you speak into the mic. Your external watt meter bobs up and down with your speech. Does the display change to show CW on the
By Bill Cromwell · #64176 ·
Re: Spurs/Harmonics fixes for v4 based on v5 board design?
Hi Jerry, The work-around I saw was using a notch filter to reduce the carrier a specified or known amount. The idea being the carrier is reduced going into the SA but the harmonics are not.
By Bill Cromwell · #64175 ·