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The keyer's output should look like a simple straight key to the V6. You should be able to just run a cable to the key input from the keyer's output. If this does not work, then you may need to get feedback from others who are doing same thing. Bob — KK5R
On Saturday, June 13, 2020, 9:28:01 PM EDT, Aaron K5ATG via groups.io <k5atg@...> wrote:
I'm having a little issue hooking up a keyer to the uBITX and I'm pretty sure I'm either missing something or doing something wrong. When I plug in the keyer of just the cable to the keyer and put the uBITX on CW it just sends out a string of dahs. Any ideas will be helpful. Oh the keyer is a homebrew CW Keyboard (I have nerve damage and can't send CW) When I plug in a set of paddles it works as is should. -- '72 Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080
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I'm having a little issue hooking up a keyer to the uBITX and I'm pretty sure I'm either missing something or doing something wrong. When I plug in the keyer of just the cable to the keyer and put the uBITX on CW it just sends out a string of dahs. Any ideas will be helpful.
Oh the keyer is a homebrew CW Keyboard (I have nerve damage and can't send CW) When I plug in a set of paddles it works as is should. -- '72 Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080
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Re: Micro Bitx v6 DC jack
thomas.adair
Thank you, 73 KI5HZW Sent via the Samsung Galaxy A10e, an AT&T 4G LTE smartphone
-------- Original message -------- From: "Bob Lunsford via groups.io" <nocrud222@...> Date: 6/13/20 3:56 PM (GMT-06:00) To: BITX20@groups.io Subject: Re: [BITX20] Micro Bitx v6 DC jack If you don't want to make a cable with the power connector, most big truck stops carry a cable designed to go from a cigarette lighter jack to a small TV, etc. Just check to make sure the center conductor is positive. Many small power supplies like the ones sold by MFJ have the cig lighter jack on front panel and some portable jumper boxes sold for starting cars have the jack on them, too. Otherwise, some Elmer could show you. The center pin is positive, the shell is negative. Bob — KK5R
On Saturday, June 13, 2020, 4:30:29 PM EDT, thomas.adair <thomas.adair@...> wrote:
How to I use the DC Jack provided with the kit? Sent via the Samsung Galaxy A10e, an AT&T 4G LTE smartphone
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Re: Micro Bitx v6 DC jack
If you don't want to make a cable with the power connector, most big truck stops carry a cable designed to go from a cigarette lighter jack to a small TV, etc. Just check to make sure the center conductor is positive. Many small power supplies like the ones sold by MFJ have the cig lighter jack on front panel and some portable jumper boxes sold for starting cars have the jack on them, too. Otherwise, some Elmer could show you. The center pin is positive, the shell is negative. Bob — KK5R
On Saturday, June 13, 2020, 4:30:29 PM EDT, thomas.adair <thomas.adair@...> wrote:
How to I use the DC Jack provided with the kit? Sent via the Samsung Galaxy A10e, an AT&T 4G LTE smartphone
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Micro Bitx v6 DC jack
thomas.adair <thomas.adair@...>
How to I use the DC Jack provided with the kit? Sent via the Samsung Galaxy A10e, an AT&T 4G LTE smartphone
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Evan Hand
belthur,
One other thought, The RF could be coming in through the mic cord. A snap-on ferrite and 0.01 uF bypass caps on the input to the ubitx could help if that is the issue. 73 Evan AC9TU
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Evan Hand
Are you amplifying the mic at all? Do you have another receiver that can be used to verify the output of the ubitx?
The only way to be sure is to measure the output. What I have done is build a -50 db tap (My measurements were -45 db actual) to sample the output of the ubitx with an SDR (RSP1A) based spectrum analyzer. If you have an SDR dongle of some sort, there are free SA software packages for them. Here is the -50DB tap that I copied: http://www.ad5x.com/images/Articles/Tap50dbRevA.pdf I used a two-tone generator built from a kit to drive a BlueTooth speaker with the volume at about what I expected a person speaking to be, and then held the mic at about the expected distance from the speaker. You may also need a step attenuator depending on the power of the amp. Others have used another receiver with the ubitx connected to a dummy load and the receiver with little or no antenna to lower the input signal. This works best if you have a waterfall display on the receiver. Again, an inexpensive SDR dongle like an RTL-SDR can work. I would first verify that you do not have any issues with the barefoot ubitx, then go on to the output of the amp. When I did similar measurements for my rigs, I found that it was easy to overdrive both the audio and then the input to the amp. I am currently waiting on a 7 element low pass filter for the amp, as the harmonic output was not within FCC requirements with an eBay 100watt LPF kit that was based on 5 element filters. I also have a -6dp pad in the works to drop the output of the ubitx to below 5 watts. FWIW 73 Evan AC9TU
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Checked. CW is just fine. How do I avoid audio overdrive?
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Thanks. No, my uBitx case isnt grounded. I will fix that. I will also try a Balun.
Thanks.
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Evan Hand
My first guess would be RF back into the ubitx. Especially since it is with the linear amp on.
Do you have the ubitx in a metal case, is it grounded, do you have a common mode choke on the coax to the antenna, and maybe a snap-on ferrite on the line to the amp? Does CW have the same issue? If not, then you could be overdriving the audio causing splatter which will feedback into the Nano control lines. I would start by making sure the case of the ubitx is grounded. Then I would do the CW test and verify that it is not overdriven audio. If the problem is still there, then I would start looking for a common-mode current reduction on the coax lines. For me at lower power snap-on ferrites around the coax have worked. At the higher power, you may need to make an ugly current balun. http://www.hamuniverse.com/balun.html The above are just suggestions. Your situation may not be the same as the ones that can cause the above, though it is most likely. 73 Evan AC9TU
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Added a 20m antenna to my Inverted V already having 40m.
Now, I have 7150 in VFO:A and 14220 in VFO:B.
When I give a TX, it will switch over to VFO:A in the middle of TX...
If I have 14220 in VFO:A, it just hangs. Not sure what's happening
Reloaded the Original firmware from github. No change.
This happens only when I have my Linear Amplier switched on.... Anyone know why it's happening?
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Re: uBitX on CW
#v6
post.an.markus@...
Hello Vic and Reed,
at first please forgive my English, I'll try to do my very best. My problem is, that my ubitx V6 only sends dits and no dahs. At least the audio output let's assume that. I have tried to morse with my straight key and with the baofeng ptt-mic, which was sent along with the full kit. I could not follow your conversation completely due to my lackings in English. -How can one solve this problem? Have you been succesful? Could you get your friend on air with cw properly? Thanks a lot and kind regards from Germany Markus, DO4DB
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Re: Kit-Projects is Open!
Ashhar Farhan
Congratulations!
On Sat 13 Jun, 2020, 9:36 AM N8DAH, <Dherron@...> wrote:
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Kit-Projects is Open!
We are back! I have added some new colors of mini paddles and a new leg mount option. More is coming soon! 73 N8DAH
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Re: New uBitx 6.1 - Have I already blown the finals?
Robert D. Bowers
When I adjusted in my Bitx20, I used a fuse rated low enough that
when I did overdrive the finals (the adjustment was a bit tricky - I
think backwards to what I expected or something like that), the fuse
blew. That saved the finals!
toggle quoted messageShow quoted text
Bob
On 6/12/20 6:57 PM, Gordon Gibby wrote:
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Re: New uBitx 6.1 - Have I already blown the finals?
Gordon Gibby
be sure to read the directions carefully---plenty of people have flat KILLED those finals by doing this move wrongly. Gordon
On Fri, Jun 12, 2020 at 12:25 PM Evan Hand <elhandjr@...> wrote: I have been using 13.8 volts to finals, and a forward diode drop to the mainboard. Either will work, it is getting the gate voltage to the correct value for the linear region of the IRF510.
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Re: ubitxv6 mic not working fine
#ubitxv6
rpremo
Thanks Evan Ill try this combo as well.
So whats working for me now (intermittent as I have a cheap plug which I need to replace with a better one). Red (TX or Pin3 on microphone) to RING Braid to ground/shield With this configuration the microphone is mostly off until I PTT. I think this might be the final config that worked once I replace the Plug. Dave can you confirm your CLEAR is actually a wire or an open connection. I interpreted it to be Yellow in my Microphone (which created intermittent TX), so I removed it and it seems to be indicating a better working config.
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Re: ubitxv6 mic not working fine
#ubitxv6
Evan Hand
I cannot comment on the wire color, however here is a link to the common 4 pin CB mic wiring:
https://www.wearecb.com/cb-microphone-wiring.html Note that pin one of the 4 pin connector is ground for both the mic and the PTT switch. Pin 2 is the mic, and pin 3 is the PTT line. Pin 1 goes to the Sleeve of the 3.5 mm plug, Pin 2 goes to the Ring of the plug Pin 3 goes to the Tip of the plug. You will need to take apart the 4 pin plug to get the wire colors for your mic. 73 Evan AC9TU
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Re: ubitxv6 mic not working fine
#ubitxv6
rpremo
Thanks Jeff for the notes on wiring. I followed this guide the result....
TX stay enabled all the time (PTT does nothing) When I remove the Ground/braid it no longer transmits continuously and PTT works; however when I PTT it goes into the constant rattling TX almost like it's trying to Antenna tune (though obviously there is no tuner) or something. I have the A channel on 80 meter.
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Re: How to upgrade the firmware on V6.1 to give better GUI?
KD2QMZ
Nice if a variable resistor (potentiometer) of such value exists, so it can be increased/decreased accordingly, or a small circuit within the microphone housing.
On Fri, Jun 12, 2020 at 1:58 PM Ashhar Farhan <farhanbox@...> wrote:
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