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Re: uBitX V6 no transmit power
#ubitxv6
#ubitx-help
#tx
Aaron,
On the schematic, we are looking to verify that U2 is being supplied 12votls on TX, and regulating that down to 5volts on TX. On the actual board, I believe it is where the P1 CONN 01X03 lower right corner, next to the blue pot (I do not have av6, I do have a v4 and a v5). While you are at it, you can verify that you have 12volts on the drains of the two IRF510 PA MOSFETs. Let us know what you find. 73 Evan AC9TU |
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Re: uBitX V6 no transmit power
#ubitxv6
#ubitx-help
#tx
Ok I'm still learning this stuff and a lot of what you guys are saying has gone over my head. So please be patient with me.?
Evan: My pots are straight. Where would I find the Bias Regulator?? John: I don't have any red and brown wires at the power supply -- '72 Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080 |
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Re: V6 & 3D printer
#ubitxv6
I like that. Very nice. Thanks for sharing. Bob ¡ª KK5R
On Sunday, July 12, 2020, 6:10:58 PM EDT, Jim Sheldon <w0eb@...> wrote:
For those of you with the Version 6 uBITX and own or have access to a 3D printer that just want a tilt stand and do not really want to drill holes in your case to mount it like Lee has done for that nice carrying handle, I got to work with the Fusion 360 CAD program today and came up with the following alternative. It's a tilt stand that lifts the case up at an angle about the same as Lee's handle, but mounts using a 3D printed mounting adapter that screws to the bottom using the two front corner mounting screws already with the case. ?That way no further mechanical mods need be made to the case to use it once you have printed it. ?3D .stl files included for both the mount and the stand itself. ?Either way you chose to do it you win - LOL. Enjoy, Jim, W0EB |
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Re: V6 & 3D printer
#ubitxv6
For those of you with the Version 6 uBITX and own or have access to a 3D printer that just want a tilt stand and do not really want to drill holes in your case to mount it like Lee has done for that nice carrying handle, I got to work with the Fusion 360 CAD program today and came up with the following alternative. It's a tilt stand that lifts the case up at an angle about the same as Lee's handle, but mounts using a 3D printed mounting adapter that screws to the bottom using the two front corner mounting screws already with the case. ?That way no further mechanical mods need be made to the case to use it once you have printed it. ?3D .stl files included for both the mount and the stand itself. ?Either way you chose to do it you win - LOL. Enjoy, Jim, W0EB |
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Re: uBitX V6 no transmit power
#ubitxv6
#ubitx-help
#tx
¿ªÔÆÌåÓýI detect a very low power carrier on USB 20 meters from the V6 while listening on other rigs in the shack with no modulation to the V6.? The carrier is just strong enough to put my LDG Z11 Pro II antenna matcher into tune mode and I couldn¡¯t be happier. ? Sent from for Windows 10 ? From: Bob Lunsford via groups.io
Sent: Sunday, July 12, 2020 16:30 To: [email protected] Subject: Re: [BITX20] uBitX V6 no transmit power #ubitxv6 #ubitx-help #tx ? You are right, Stephen. Just pushing the PTT button on the microphone while in SSB would not show a carrier or signal unless one talked into the mic . On CW, though, if the finals are working, along with the rest of the circuit, RF would show up on the watt-meter if the PTT button is pushed and it's all working. This would eliminate many possibilities. ? Bob ¡ª KK5R ? On Sunday, July 12, 2020, 4:23:15 PM EDT, Stephen KO4CVU <goinfishin1952@...> wrote: ? ? Aaron, ? |
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Re: uBitX V6 no transmit power
#ubitxv6
#ubitx-help
#tx
Yeah I had it in CW mode when I was testing it with the wattmeter. I do see the TX come on the screen when I push the PTT on the mic. I also hear the relay clicking when I push the PTT button. I do have a nicer mic, I don't know if it has a preamp or not built-in but I want to make sure that the rig works before I do any mods to it.?
-- '72 Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080 |
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Re: uBitX V6 no transmit power
#ubitxv6
#ubitx-help
#tx
You are right, Stephen. Just pushing the PTT button on the microphone while in SSB would not show a carrier or signal unless one talked into the mic . On CW, though, if the finals are working, along with the rest of the circuit, RF would show up on the watt-meter if the PTT button is pushed and it's all working. This would eliminate many possibilities. Bob ¡ª KK5R
On Sunday, July 12, 2020, 4:23:15 PM EDT, Stephen KO4CVU <goinfishin1952@...> wrote:
Aaron, First, don¡¯t get discouraged. Have you tried putting the uBITX in CW mode and pushing the PTT button on the microphone with the watt meter connected? Start out on the 80 or 40 meter bands first. Does the TX light come on? Can you heard a relay click? Have you tried another microphone yet? I replaced mine with a CB microphone having a built-in preamplifier. It made a tremendous difference in power output for the phone mode. I¡¯ll let other folks chime in with more technical troubleshooting advice now. Stephen |
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Re: V6 & 3D printer
#ubitxv6
Looking better and better Lee. Much better on the case than forming a bail and using a couple of U-clips on the bottom of the radio cabinet. Or robbing one from a parts radio. The handle mounting you used is the least damaging I can think of. Only thing I might consider is threaded Pop-rivets on the case for attaching the handle. If it's to be permanent, though, a screw mounted from the inside could be used since the handle is flexible enough to bend each leg out to slip over the screw sticking out of the radio. More ideas. Bob ¡ª KK5R
On Sunday, July 12, 2020, 12:07:24 PM EDT, Lee <mr.olson@...> wrote:
Since my radio always sits in the same spot I made a hold-down and because the stand makes the speaker angle away I also made an ugly sound deflector. -- Lee - N9LO? "I Void Warranties" ? |
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Re: V6 & 3D printer
#ubitxv6
On second thought, I'd also use thumbscrews or something similar to attach the handle to the case to avoid having the handle allow the radio moving forward or backward. Also, rubber washers about 1/16th inch between the handle and the radio case would further keep the handle from shifting after tightening the thumbscrews. Just a thought. Bob ¡ª KK5r
On Sunday, July 12, 2020, 11:34:50 AM EDT, Jim Sheldon <w0eb@...> wrote:
Simple but nice Lee. ?Having several 3D printers and become semi-proficient with Fusion 360, I considered doing a folding stand myself, but now, there's no need for me to do that - Thanks for the .stl files. ?If you have them, I'd consider putting some of those stick-on rubber feet (or designing some 3mm holes into the bottom of the handle to add sticky rubber feet which will keep the handle from sliding as it's used for the stand (shorten the handle up by about 10 millimeters too so the uBITX's back foot sits more firmly on the surface. ?That will help keep it from sliding around. ?Just a thought or two. Nice job, no matter what though. Jim - W0EB
------ Original Message ------
From: "Lee" <mr.olson@...>
Sent: 7/12/2020 10:11:50 AM
Subject: [BITX20] V6 & 3D printer #ubitxv6 I got bored staying home due to Covid-19 so I used Tinkercad to draw up these accessories.? The carrying handle doubles as a stand.? The knob inserts bulge up.? I attached the .stl files if you would like to print your own in your favorite color. |
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Re: V6 & 3D printer
#ubitxv6
That looks awesome, makes me want a 3D printer!
-- '72 Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080 |
Matt Towe
Aaron K5ATG
Bob Lunsford
Jim Sheldon
Juan Bruja
