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Bitx40 Power Supply - stackeing 4 2032 Lithium coin batterieis?
I was thinking of powering my new Biitx40 with 4 2032 lithium coin batteries, but I don't know how to create a holder for them. Does anyone have an idea?
Also, is this idea even feasible? Thanks so much (in advance) for your answers. Larry Mittman, N8MGU GnuPG Public Key ID: DC840312 ============================== ============================== Never cross a Dragon, for you are crunchy and taste delicious! My Interests are: Ham Radio (N8MGU) | Opera | Theater | Sailing | Judaica | CKCS ?
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Re: Raduino clicking when microphone is connected or keying CW.
#ubitx-help
#radiuno
Addendum to the above: It's not so much a squeal, more like a noise you'd hear on Space Invaders or Galaga or something. Sorry for the non-technical explanation, but I don't know what else to call it.
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Re: Raduino clicking when microphone is connected or keying CW.
#ubitx-help
#radiuno
Y'all were correct about the ground connection and ptt being reversed. That problem is now fixed, but when I key up, there is a lot of squealing in addition to my voice coming out of the receiver I am using to test transmitting.
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Re: Raduino help?
Jack Purdum
I'm grasping at straws here, but usually when I find the upload hangs, it's for one of two reasons. First, I don't have the CH340 driver installed. Many clones don't use the expensive UART of the original Nano, hence the need for the driver. Just google "CH340 download". Second, the chip was shipped with an early bootloader. If that's the case, the Tools menu will have a bootloader option. Try the ATMega328 (old bootloader), reload the IDE and see if that fixes it. (I don't have one that causes the bootloader menu to appear any more, but it's under the Tools menu.) Let people know if either helps. Jack, W8TEE
On Friday, November 23, 2018, 3:06:11 PM EST, Woody <mailme@...> wrote:
Will welcome any suggestions... History: Using UBITX_CEC_V1.080_16P.hex. Original Raduino died during transmitter testing.??? Display: Top row all filled characters, Bottom row no characters.? This is what is displayed while waiting for boot to complete with working unit...? Tried to reload firmware... UBITX Manager: Connects OK (38,400 baud), but READ UBITX returns error - [6:31] ERROR RECEIVE LENGTH = 0/1027 Reset does not return error.?? After "reset ubitx", reconnect and tried to upload original btx file - reported success... Then... Using XLOADER, tried uploading UBITX_CEC_V1.080_16P.hex again (57,600 baud, at 38,400 - can't open port)? ---? Tries to upload, but stuck at "uploading...", never completes. So...? Ordered new Raduino kit from W0EB.? Different problem: Display lights, no characters either row. ---- Memory manager connects, Read ubitx seems to work.? Got data and the info: [6:57 PM] Check sum compare 57:57 [6:57 PM] READ SAMPLE : 02,D2,DD,FF,FF,00,00,00,00,B2,0E,B7,00,00,00,00,00,10,93,6B,00,C8,09,6F,00,00,00,00,00,0E,00,00, Memory Manager Reset seems to work. Loading btx from file reports "success". Using Xloader, loaded UBITX_CEC_V1.080_16P.hex,? apparently successful. Lit, but still blank display. -------------------------------------------------------------------------------------------------------- THEN... Put the new arduino nano (from W0EB) in the original Raduino board.?? Seems to work! -------------------------------------------------------------------------------------------------------- Apparently I have two issues.? A bad Nano in original, and something wrong with my new kit. I have carefully examined all solder joints using 10x eye loop and 20x stereo microscope.? No bridging, joints look OK. Two questions: 1) Any suggestions about why the original Nano died?? Don't want a repeat! 2) What could be causing the lit but blank display on the new kit? Thanks for any suggestions. Woody,? KZ4AK |
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Raduino help?
Woody
Will welcome any suggestions...
History: Using UBITX_CEC_V1.080_16P.hex. Original Raduino died during transmitter testing.??? Display: Top row all filled characters, Bottom row no characters.? This is what is displayed while waiting for boot to complete with working unit...? Tried to reload firmware... UBITX Manager: Connects OK (38,400 baud), but READ UBITX returns error - [6:31] ERROR RECEIVE LENGTH = 0/1027 Reset does not return error.?? After "reset ubitx", reconnect and tried to upload original btx file - reported success... Then... Using XLOADER, tried uploading UBITX_CEC_V1.080_16P.hex again (57,600 baud, at 38,400 - can't open port)? ---? Tries to upload, but stuck at "uploading...", never completes. So...? Ordered new Raduino kit from W0EB.? Different problem: Display lights, no characters either row. ---- Memory manager connects, Read ubitx seems to work.? Got data and the info: [6:57 PM] Check sum compare 57:57 [6:57 PM] READ SAMPLE : 02,D2,DD,FF,FF,00,00,00,00,B2,0E,B7,00,00,00,00,00,10,93,6B,00,C8,09,6F,00,00,00,00,00,0E,00,00, Memory Manager Reset seems to work. Loading btx from file reports "success". Using Xloader, loaded UBITX_CEC_V1.080_16P.hex,? apparently successful. Lit, but still blank display. -------------------------------------------------------------------------------------------------------- THEN... Put the new arduino nano (from W0EB) in the original Raduino board.?? Seems to work! -------------------------------------------------------------------------------------------------------- Apparently I have two issues.? A bad Nano in original, and something wrong with my new kit. I have carefully examined all solder joints using 10x eye loop and 20x stereo microscope.? No bridging, joints look OK. Two questions: 1) Any suggestions about why the original Nano died?? Don't want a repeat! 2) What could be causing the lit but blank display on the new kit? Thanks for any suggestions. Woody,? KZ4AK |
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Re: Raduino clicking when microphone is connected or keying CW.
#ubitx-help
#radiuno
I had a similar situation.? It turned out to be my mic jack was slightly loose at the case (the mounting screw was snug but not super tight).? When I plugged the mic in, I was inadvertently (and unknowingly) twisting the entire jack clockwise and it was shorting the mic wiring on the pins against the LCD display assembly.? To correct the problem I rotated the jack away from the short, tightened the mounting screw, and (for good measure) placed some electrical tape between the jack wiring and the LCD display assembly.? Not sure if this will work for you but it did the trick for me.
Tom AB7WT |
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Re: Power supply
Gordon Gibby
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Re: Power supply
We have two ubitx radios. One runs off a 20v old laptop supply. I made a linear regulator from a 317 to run the main radio at 13.7v and the finals run off of the 20v. I have engineered larger heat sinks and a ducted fan. The output transistors don't get warm even with running continuously at full power for several minutes. Puts out about 20watts on the lower bands. This power supply fits in the radio box.
The other ubitx is powered by a 2 amp cheap chinese wall wort. It shouldn't work but does fine. Also have a Bitx40 that I generally run battery operated.? |
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Re: Raduino clicking when microphone is connected or keying CW.
#ubitx-help
#radiuno
Possibly you have ptt and ground reversed on your microphone connection, as I had same symptoms when I did. Disconnect ptt or ground to see if problem goes away.
If you are using the case from India, then check the front mounted hub board for solder bridges or poor connections. |
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Raduino clicking when microphone is connected or keying CW.
#ubitx-help
#radiuno
Hello, solder-melters, I wired up the key jack for a straight key. When I key CW, I hear a continuous tone behind my dits, and when I cease transmitting, the tone continuous for about a second, then the raduino clicks and the radio returns to RX. I'm not experienced and have no idea where to start troubleshooting. I've made sure all connections are solid, but I'm starting to wonder if this is a software issue. I am running version 1.08 of KD8CEC's firmware. Any ideas? Thanks! |
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Re: Power supply
joel taylor
Thanks for the info. ?I know switching supplies are known for being noisy, and I don¡¯t have the test equipment to check how clean the output is. ?Appreciate the advice on your experience. ?
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Joel On Thursday, November 22, 2018, 5:05 PM, Curt via Groups.Io <wb8yyy@...> wrote:
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Power supply
I¡¯m sure this has been covered but I would like to know what are the favorite power supply options for the Ubitx. (12v 3a). ?No plans to be portable so either a bench top unit or something I can mount in an enclosure for the radio. ?Also with some of the other options I am seeing, maybe I will need other voltage outputs. ? Thanks!
Joel
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Re: Finally got my ubitx on the air!
I found it, a Plessey SL6270C. Thanks very very much for the schematics with the indication of the easy mod to do on the ubitx. It will make it in the next weekends. Il 22/nov/2018 18:25, "iz oos" <and2oosiz2@...> ha scritto:
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Re: Ubitx working, audible tone over signals on RX
I and a relative both implemented the Nextion screen with the CEC software and have experienced the same issue.? Filtering, putting it on a seperate regulator does not solve the problem.? The only thing that has worked so far is either a totally seperate supply (common only at the ground to the display), or to run at full brightness as Geoff has stated. Looking into separate regulator with low pass filter to see if that solves the problem. Evan AC9TU |
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Re: Finally got my ubitx on the air!
Excellent! If I have the same part I will follow this schematics. That part is very military and sounds very good on air. Il 22/nov/2018 18:01, "barry underwood via Groups.Io" <under2b=[email protected]> ha scritto: I used the circuit straight out of the datasheet, using the 12V TX line for power and a 78l05 regulator. My circuit is attached. |
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Re: Great Results with Mic Preamp
Saw that article last night. Thanks for your report on it's value to you.
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_Dave_ AD0B
Lee
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