Re: Ubitx V3/V4 Outboard Relay mod board
That sounds like a relay cycling. In my uBitX V4 I needed to add a 2.2K resistor between the 5v source and the PTT line as the Arduino internal pull up circuit was not enough to reliably sense PTT operation.
=Vic=
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Ah. the old resistive bridge QRP AMU that has had several/many revivals across the years.
This could be a worthwhile way to obtain the tuning capacitors, these are starting to get a little scarce from 'normal' retailers now.
And as a kit these have presumably all the needed parts to make up the set.
Finding the parts for different projects is extra difficult now that Covid-19 restrictions are starting to have their long term effects.
It could be an idea to not include 3rd. party logos and text in our messages?
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Re: 100W Automatic Antenna Tuner...
Re: the N7DDC auto tuner.
I looked for reviews first, decided to order it. This was a little over six weeks ago. For me, it entailed two orders, one for the circuit board and related components and another for the enclosure.
The enclosure arrived via China Post rather quickly. It was 28.00 USD shipped. It contains a few other pieces such as the antenna bulkhead connectors. It is a 3D printed item, but appears to be decently done.?
The circuit board has not arrived. 35.00 USD shipped. The tracking shows it stalled in Russia.
When and if it arrives, I'll assemble and give some further feedback...standby....
73 Alan AE0IX
On Saturday, August 1, 2020, 08:56:38 PM MDT, Bob Lunsford via groups.io <nocrud222@...> wrote:
Further perusing eBay for offerings, I found other tuners. The specifications given were believable but of course they will not tell you the negatives, only the positives with a few elaborations. And it appears that the builder will still need to get an enclosure. No telling what it would take to make it perfect. Still, though, it beats the price of other auto-tuners on the market but everything like this comes with compromises. Myself, I'll stick to the manual tuner I mentioned previously since it is simplicity itself. One builder had a faulty switch in this kit but that was one builder's complaint before saying it was a good tuner once the fault was found and corrected. However, this simpler tuner is good enough for what I want to do with the V6. Also, there is a less expensive offering for the manual tuner: It's only $12 but they don't use PayPal.
Bob ¡ª KK5R
On Saturday, August 1, 2020, 10:37:07 PM EDT, Patrick Ridge via groups.io <apm80814@...> wrote:
The antenna tuner kit is available on Bangood for a few dollars less. The kit is mostly complete, but has a few issues. It comes with a nice, solid enclosure. I¡¯m not sure it will handle more than 10 watts.?
Issues: 1. No clear instructions. YouTube to the rescue 2. The tuning capacitor knobs did not come with the necessary extension shaft. Mikes electronics to the rescue. I am planning to make a short YouTube to address what I thought were shortcomings in the instructions and the YouTube videos I watched regarding this kit. Standby....
The kit is a value for the parts alone. Just be aware that it takes some effort and a few outside pieces that were not included to make it work.
73 Alan
On Aug 1, 2020, at 8:06 PM, Bob Lunsford via groups.io <nocrud222@...> wrote:
? Here's another item that may be of interest for you build-it-yourself hobbyists: An automatic antenna tuner. Costs $28 plus shipping for the kit...
Here are some specs for it:
Power supply range: 10 - 15 VDC
Max current : 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts : 1 watt?
Power measurement accuracy : 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
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Re: 100W Automatic Antenna Tuner...
Further perusing eBay for offerings, I found other tuners. The specifications given were believable but of course they will not tell you the negatives, only the positives with a few elaborations. And it appears that the builder will still need to get an enclosure. No telling what it would take to make it perfect. Still, though, it beats the price of other auto-tuners on the market but everything like this comes with compromises. Myself, I'll stick to the manual tuner I mentioned previously since it is simplicity itself. One builder had a faulty switch in this kit but that was one builder's complaint before saying it was a good tuner once the fault was found and corrected. However, this simpler tuner is good enough for what I want to do with the V6. Also, there is a less expensive offering for the manual tuner: It's only $12 but they don't use PayPal.
Bob ¡ª KK5R
On Saturday, August 1, 2020, 10:37:07 PM EDT, Patrick Ridge via groups.io <apm80814@...> wrote:
The antenna tuner kit is available on Bangood for a few dollars less. The kit is mostly complete, but has a few issues. It comes with a nice, solid enclosure. I¡¯m not sure it will handle more than 10 watts.?
Issues: 1. No clear instructions. YouTube to the rescue 2. The tuning capacitor knobs did not come with the necessary extension shaft. Mikes electronics to the rescue. I am planning to make a short YouTube to address what I thought were shortcomings in the instructions and the YouTube videos I watched regarding this kit. Standby....
The kit is a value for the parts alone. Just be aware that it takes some effort and a few outside pieces that were not included to make it work.
73 Alan
On Aug 1, 2020, at 8:06 PM, Bob Lunsford via groups.io <nocrud222@...> wrote:
? Here's another item that may be of interest for you build-it-yourself hobbyists: An automatic antenna tuner. Costs $28 plus shipping for the kit...
Here are some specs for it:
Power supply range: 10 - 15 VDC
Max current : 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts : 1 watt?
Power measurement accuracy : 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
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Re: 100W Automatic Antenna Tuner...
The antenna tuner kit is available on Bangood for a few dollars less. The kit is mostly complete, but has a few issues. It comes with a nice, solid enclosure. I¡¯m not sure it will handle more than 10 watts.?
Issues: 1. No clear instructions. YouTube to the rescue 2. The tuning capacitor knobs did not come with the necessary extension shaft. Mikes electronics to the rescue. I am planning to make a short YouTube to address what I thought were shortcomings in the instructions and the YouTube videos I watched regarding this kit. Standby....
The kit is a value for the parts alone. Just be aware that it takes some effort and a few outside pieces that were not included to make it work.
73 Alan
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On Aug 1, 2020, at 8:06 PM, Bob Lunsford via groups.io <nocrud222@...> wrote:
? Here's another item that may be of interest for you build-it-yourself hobbyists: An automatic antenna tuner. Costs $28 plus shipping for the kit...
Here are some specs for it:
Power supply range: 10 - 15 VDC
Max current : 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts : 1 watt?
Power measurement accuracy : 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
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100W Automatic Antenna Tuner...
Here's another item that may be of interest for you build-it-yourself hobbyists: An automatic antenna tuner. Costs $28 plus shipping for the kit...
Here are some specs for it:
Power supply range: 10 - 15 VDC
Max current : 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts : 1 watt?
Power measurement accuracy : 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
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Correction: Total cost is just under $17....
Bob ¡ª KK5R
On Saturday, August 1, 2020, 9:44:06 PM EDT, Bob Lunsford via groups.io <nocrud222@...> wrote:
I just ordered this antenna tuner for my V6. Total cost plus shipping, tax, license, etc., was just under $16...
Thought it may interest others here. Is rated for 15W and has the standard LED SWR tuner.
Bob ¡ª KK5R
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I just ordered this antenna tuner for my V6. Total cost plus shipping, tax, license, etc., was just under $16...
Thought it may interest others here. Is rated for 15W and has the standard LED SWR tuner.
Bob ¡ª KK5R
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Diagram for this mod shows connecting the base of the transistor that bypasses the PPT switch as to be connected to P3 pin 16 but the writeup say pin 15.
Can anyone confirm that it should be pin 16 as this is "(TX)D0" and should be high (5v) on TX.
Ted VA7CTA
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Hello,
I¡¯m still working on it. I¡¯ve done some tricoils and filters, real surgeon work.
A question for:
I start the realization with Kicad of the circuit for jack connections in front.?
How? connecting an old CB microphone? RJ 11.
A priori on the RJ 11 socket: the 3 is at mass in TX, the 4 is at mass in RX. I think you have to connect one of the two on the PTT connection, but which one?
I think someone¡¯s already done it.
If you have a diagram
cdt
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Re: Ubitx V3/V4 Outboard Relay mod board
?Hi,
I am attaching a video of ubitx ver3. No TX. Get this sound when I press PTT. What could be wrong. Which relay needs to be replaced.
Thanks in advance.
Rajesh
VU3RHU
Ubitx V3/V4 Outboard Relay mod board from Kit-Projects
$10 plus shipping
email at ai4ns.mike.spam@...
Mike
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SolderSmoke Podcast 224: uBITX, Antuinos, more...
The latest episode includes mention of a homebrew uBITX, the Antuino, the NanoVNA and other topics of interest to this group:?
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Different rigs have different RFI immunity. In any case, having the antenna right at the radio is poor practice and? your body movement will detune the antenna. If you will accurately measure the? 1.26:1 SWR points (bandwidth) say on 40M,? tell me the diameter of the? man loop and its diameter, I will respond with its gain below a dipole. ? Regards, Dale W4OP ?
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From: [email protected] [mailto:[email protected]] On Behalf Of eb2elu@...
Sent: Saturday, August 1, 2020 5:02 AM
To: [email protected]
Subject: Re: [BITX20] weird tx rx cycle #v6 #ubitx ? Hi, antenna is attached directly to the rig. I have used that antenna with a yaesu 857 directly attached and that tx rx x cycle didn't happened. My ubitx has a metallic case but may be poorly shielded compared to yaesu 857. I will try to get a coaxial cable to put antenna as far as I could from radio.
Thank you very much for your help
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Hi, antenna is attached directly to the rig. I have used that antenna with a yaesu 857 directly attached and that tx rx x cycle didn't happened. My ubitx has a metallic case but may be poorly shielded compared to yaesu 857. I will try to get a coaxial cable to put antenna as far as I could from radio.
Thank you very much for your help
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Re: Sketch ?BITX-V6 version 6.3.1 Arduino-IDE error in the complication on the NANO EVERY board.
#v6
#nano
#ubitxv6
Hi Gary,
translating for EVERY the source code of KD8CEC was already my idea ... I'll try, but I can't guarantee the result ...
?
a warm greeting IW4AJR Loris
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Re: Sketch ?BITX-V6 version 6.3.1 Arduino-IDE error in the complication on the NANO EVERY board.
#v6
#nano
#ubitxv6
Thank you all !
I will try in the next week and I will report the results ...
Thank you again !
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Hi Ian,
Great to hear. TSW's teensy software has v6 S-meter support. Is that an option for you?
Reed
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Reed,
Thankyou for your reply.
I am currently using your R1.5.1 software, and it is very nice. Thankyou for that.
The stock software that came with the UbitxV6 H/W is quite unacceptable, and clearly, has not been tested.
The add on AGC board, available from 'Kit-Projects', has an analog S meter output, which can be connected to A7 on the Nano board. The S meter appears on the display, although I have not seen what it looks like. I understand that the CEC software implements this function, but of course, not on the UbitxV6 H/W, with its display.
It would be nice to have this feature.
Having paid good money for the UbitxV6 hardware, with a perfectly usable display, I have no intention of changing the display, as others are suggesting.
Regards,
Ian.
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What features/functionality are you looking for?
Reed
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RF output is higher when the antenna is tuned to resonance.? This causes RF to
enter the microphone, the mike cable, and the mike amplifier.? Can also enter via
the key lead if it is fairly long.? Power supply regulators can also be modulated by
RF if not well filtered.? Wall warts are typically not bypassed for HF.? Computer
power supplies are typically not well bypassed for HF.
This type problem usually occurs with antenna systems that operate with a
floating ground, or that claim no ground is needed. ? Can also occur if the ground
is too small wire, or is not making a good connection.? Basic problem is voltage
radiation too close to the rig.? A metallic (shielded) case can help in some situations.
Arv? K7HKL _._
On Fri, Jul 31, 2020 at 4:24 PM < eb2elu@...> wrote: But only happens with that antenna and only when antenna is tuned for the ubitx operating frequency.
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Vic WA4THR
Bob Lunsford
Gerard
rajesh huddar