Re: Low power output on ubitx
Ok thank for the fast answer, i would make the things you say and then i post in thd next hours again, for the first time i say very much thanks,?
Greetz DD1FK
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Hi Jack,
I noticed on eBay when looking at the audio amp that there are available ones with built in volume control. Might make things simpler and save on freight for one pot.
73
Dennis, W7DRW
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Jack,
To be honest, that's not a bad price to start with.
Matthew N8OHU
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On May 7, 2019 1:59:39 PM EDT, "Jack Purdum via Groups.Io" <jjpurdum@...> wrote: All:
A number of you wanted a BOM for the Morse Code Tutor so that you can
order parts now before the schematic and source code are available.
This gives you an idea of the parts in the project:
The attached BOM prices this out at around $19 not including a case.
You can lower the price by buying in small quantities and sharing in a
build.
Jack, W8TEE
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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All:
A number of you wanted a BOM for the Morse Code Tutor so that you can order parts now before the schematic and source code are available. This gives you an idea of the parts in the project:
The attached BOM prices this out at around $19 not including a case. You can lower the price by buying in small quantities and sharing in a build.
Jack, W8TEE
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I have a uBITX? v3 2017? 908/02 for sale.? Audio IC is in socket. No modifications or software updates.?
I do not have time continue with the uBITX mods and updates.? It is in good working order and just quick
wired to the main board.? No case.? Tested on both CW and SSB.? I have adjusted the BFO frequency for
good audio on receive and transmit.??I made contacts on 80m CW, 40m CW & SSB, and 30 m CW.
13.8 volt power supply????????????????????????
????mHz???????????????????????????????????????????????????????? Power output in watts
?? 3.535??????????????????????????????????????????????????????????????? 11.0
?? 7.030????????????????????????????????????????????????????????????????10.0
?10.115???????????????????????????????????????????????????????????????? 6.0
?14.030???????????????????????????????????????????????????????????????? 6.0
?18.075???????????????????????????????????????????????????????????????? 3.0
?21.030???????????????????????????????????????????????????????????????? 2.0
?24.900???????????????????????????????????????????????????????????????? 2.4????
?28.030???????????????????????????????????????????????????????????????? 1.8
I am asking $90 including shipping within the CONUS.??Only postal money order or bank check.
My email and address info is current on?my QRZ.com page.? Thank you.
73, Rod WA9GQT???????
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Re: Low power output on ubitx
Are you using electret mic as the mic pin is having dc bias voltage? Generally we provide a 1nF? cap across the electret. That filters rf induced on the mic cable.
Reg ver 3 drawing 650mA on Rx with volume control at minimum, please check whether the audio amp is landing into oscillation. You could place a 1nF at? Vol mid pin close to the tda2822 and gnd. If the chip is too hot oscillation could be suspected.? Once the Rx? current comes down to expected standard, you can adjust the mos fet currents one? by one after making the gate bias as zero at first stage.
Perhaps you might have already exercised all above steps.
? He k once whether the bias regulator output is dropping down not allowing needed Id? for the IRF510s.
Hope to see you solving out the issues. Regards? sarma? ?u3zmv
I have V3 and i have an idea to rise up the output with an mic amplifier but i want look for an simple homebrew mic amp, but i think the problem is the voltage on mic cable for the amp, i read here in the forum of an simple 2N3906 amp directly after the mic capsuale and without any voltage from battery, only the voltage on the mic line should work, but i have built this and my first usage of it have no output, anything wrong in the circuit i solder or it is the voltage on the mic line that is not enoug.. but i think an mic amp is the first what i need..
My power output with cw is more than ssb on 80m i habe test, on other band i dont have testing cw against ssb power output. But it look like anything is wrong..
How can this less power output have any reason, which reasons there to look when receive is 160mA and ptt only 450mA and with adjust the rv2 and rv3 to each 100mA to the 450mA so i have made, the ubitx have 650mA pttonly by 12V and with say Haaaallloooo it have 1A but only 4-5W on Dummy on 80m and on Dipole 80m it have onmy 4W too..?
There is the mic amp i look for the next step to rise up power in ssb mode.. but the mic amp should be self made because i have not much money for buy an mic amp module in online shop, and i have many items at home like Transistor,R,C,L,ICs and many messuaring Tools so it should be an ubitx mic amp for homebrew and the circuit i only found of this kind doesnt work..
If any Ideas for an mic amp shematic for the ubitx 3 or any help to me to become more power i would be proud!
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Re: Low power output on ubitx
Why overdrive? I have not overdrive when clockwise the rv2 and rv3 is 450mA and i give 200mA with anticlockwise screwing to this, and so 100mA at each PA how it was sayed i? HF Signals, but i have the 1A when i ptt and speak loud hallo but only ptt is only 650mA.. and now it was really less with 4W on 80m or not?
What can i do and what about the mic amp to become more power?
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Re: Low power output on ubitx
Overdriving the mixer/modulator is not a good idea because it can cause higher level of spurious output. _._
I have V3 and i have an idea to rise up the output with an mic amplifier but i want look for an simple homebrew mic amp, but i think the problem is the voltage on mic cable for the amp, i read here in the forum of an simple 2N3906 amp directly after the mic capsuale and without any voltage from battery, only the voltage on the mic line should work, but i have built this and my first usage of it have no output, anything wrong in the circuit i solder or it is the voltage on the mic line that is not enoug.. but i think an mic amp is the first what i need..
My power output with cw is more than ssb on 80m i habe test, on other band i dont have testing cw against ssb power output. But it look like anything is wrong..
How can this less power output have any reason, which reasons there to look when receive is 160mA and ptt only 450mA and with adjust the rv2 and rv3 to each 100mA to the 450mA so i have made, the ubitx have 650mA pttonly by 12V and with say Haaaallloooo it have 1A but only 4-5W on Dummy on 80m and on Dipole 80m it have onmy 4W too..?
There is the mic amp i look for the next step to rise up power in ssb mode.. but the mic amp should be self made because i have not much money for buy an mic amp module in online shop, and i have many items at home like Transistor,R,C,L,ICs and many messuaring Tools so it should be an ubitx mic amp for homebrew and the circuit i only found of this kind doesnt work..
If any Ideas for an mic amp shematic for the ubitx 3 or any help to me to become more power i would be proud!
|
Locked
Re: bad news and a bit of good news.
Take this topic some were else.? If you are so hard up, you do not need a hobby.? Sell all your radio gear and support your family.? Been there done that.
K6KWQ
Dick
?
Sent from for Windows 10
?
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Show quoted text
(Yeah, another book...)
Add to that the fact that insurance companies generally charge poor people extra for insurance (at least, in this hellhole of a state), and if the vehicle is lost, will only pay you the blue book value if you're lucky.? Been there.? An old pickup... you
probably will recover only a portion of your yearly premium.
The corporations assume that if you can't afford their rates, you can walk or take a bus (never mind that there are more poor people AWAY from the cities than within... and bus service doesn't cover most of this country)!
(The below is for the "blame game" people, Wayne, who seem to be very common in amateur radio and in certain.. buildings.? I would admit that maybe people don't understand how the rest of us are forced to live and assume that we've got extra money to
spare.? I'm only too used to hearing this stuff and I know how much it hurts!)
It's also hard to buy "extra" insurance when you don't have a nice income.? We've been where we had to make do with "potato and onion soup" for our meals over several days recently, in trying to have the money to pay our bills.? That is normal... and things
like food stamps help, although the program is based on 1960s data and doesn't begin to cover the cost of food today (add to that the sad fact that when poor people try to have a decent, balanced diet like everyone else, people judge them {wrongly} and will
attack them - even to their face in line!)
Another tidbit - the person being attacked might be disabled, and most very real disabilities are not 'visible'.? A recent news article was revealing - only 23.7% of people with disabilities have been able to hold a full time job for more than one year.?
The ADA isn't working as it should - it's being used more to provide tax breaks for corporations rather than getting people gainfully employed!? They may be trying to survive on very little - and having extra cash to buy more insurance... not a possibility.
Another tidbit - most homeless people are young families, not the lazy drunk or doper that is the stereotype.? People who are homeless and used drugs generally didn't start until after they became homeless - using drugs was a coping mechanism to deal with
the hellish stigma they experience.? The top ten reasons for homelessness - the first five are purely economic (job loss to downsizing or shipped overseas, hour or wage reduction if not outright wage theft, and so on).? Mental illness... if I remember right,
it was 7th.? Drug use or alcoholism was 9th or lower.
In other words, poverty is usually not the result of personal failings, but usually a social evil caused by structures and policies.? People who haven't been there don't understand how rough it can be.
I've noticed a tendency in some of the people on this blog to blame people who've had a hard time, and to make suggestions that they may not realize are insulting.? It's easy to blame the person who had the problem, and ignore the person who CAUSED the problem.
Anyway, Wayne... it sounds like you've got a pretty good support base - the reality of poverty in the USA is that's the only way most poor people survive.? I was worried about that.
I can suggest a lot of good books (and research articles) on this subject, but will only mention a couple:
The Poor Pay More by Caplovitz.? A dated book from the 60s, but what he writes is still very true and accurate today.? I've personally witnessed it numerous times in the last 20 years.
Blaming the Poor by Dr. Susan Greenbaum.? A recent publication, it explores the reality of poverty and how we got to where we are in this country today.
Funny thing is that most working poor don't realize that they ARE poor (until they get hit with something like a burned truck).? It's not shameful to be poor, what IS shameful is that the things that would lessen the problem are strenuously fought against.
Bob
On 5/7/19 4:58 AM, Wayne Leake wrote:
?Insurance on older vehicles costs more than the vehicle is worth, and usually has a high deductible.
?The truck is a 1983
?Had it since 2004.
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Re: Low power output on ubitx
I have V3 and i have an idea to rise up the output with an mic amplifier but i want look for an simple homebrew mic amp, but i think the problem is the voltage on mic cable for the amp, i read here in the forum of an simple 2N3906 amp directly after the mic capsuale and without any voltage from battery, only the voltage on the mic line should work, but i have built this and my first usage of it have no output, anything wrong in the circuit i solder or it is the voltage on the mic line that is not enoug.. but i think an mic amp is the first what i need..
My power output with cw is more than ssb on 80m i habe test, on other band i dont have testing cw against ssb power output. But it look like anything is wrong..
How can this less power output have any reason, which reasons there to look when receive is 160mA and ptt only 450mA and with adjust the rv2 and rv3 to each 100mA to the 450mA so i have made, the ubitx have 650mA pttonly by 12V and with say Haaaallloooo it have 1A but only 4-5W on Dummy on 80m and on Dipole 80m it have onmy 4W too..?
There is the mic amp i look for the next step to rise up power in ssb mode.. but the mic amp should be self made because i have not much money for buy an mic amp module in online shop, and i have many items at home like Transistor,R,C,L,ICs and many messuaring Tools so it should be an ubitx mic amp for homebrew and the circuit i only found of this kind doesnt work..
If any Ideas for an mic amp shematic for the ubitx 3 or any help to me to become more power i would be proud!
|
Locked
Re: bad news and a bit of good news.
(Yeah, another book...)
Add to that the fact that insurance companies generally charge
poor people extra for insurance (at least, in this hellhole of a
state), and if the vehicle is lost, will only pay you the blue
book value if you're lucky.? Been there.? An old pickup... you
probably will recover only a portion of your yearly premium.
The corporations assume that if you can't afford their rates, you
can walk or take a bus (never mind that there are more poor people
AWAY from the cities than within... and bus service doesn't cover
most of this country)!
(The below is for the "blame game" people, Wayne, who seem to
be very common in amateur radio and in certain.. buildings.? I
would admit that maybe people don't understand how the rest of
us are forced to live and assume that we've got extra money to
spare.? I'm only too used to hearing this stuff and I know how
much it hurts!)
It's also hard to buy "extra" insurance when you don't have a
nice income.? We've been where we had to make do with "potato and
onion soup" for our meals over several days recently, in trying to
have the money to pay our bills.? That is normal... and things
like food stamps help, although the program is based on 1960s data
and doesn't begin to cover the cost of food today (add to that the
sad fact that when poor people try to have a decent, balanced diet
like everyone else, people judge them {wrongly} and will attack
them - even to their face in line!)
Another tidbit - the person being attacked might be disabled, and
most very real disabilities are not 'visible'.? A recent news
article was revealing - only 23.7% of people with disabilities
have been able to hold a full time job for more than one year.?
The ADA isn't working as it should - it's being used more to
provide tax breaks for corporations rather than getting people
gainfully employed!? They may be trying to survive on very little
- and having extra cash to buy more insurance... not a
possibility.
Another tidbit - most homeless people are young families, not the
lazy drunk or doper that is the stereotype.? People who are
homeless and used drugs generally didn't start until after they
became homeless - using drugs was a coping mechanism to deal with
the hellish stigma they experience.? The top ten reasons for
homelessness - the first five are purely economic (job loss to
downsizing or shipped overseas, hour or wage reduction if not
outright wage theft, and so on).? Mental illness... if I remember
right, it was 7th.? Drug use or alcoholism was 9th or lower.
In other words, poverty is usually not the result of personal
failings, but usually a social evil caused by structures and
policies.? People who haven't been there don't understand how
rough it can be.
I've noticed a tendency in some of the people on this blog to
blame people who've had a hard time, and to make suggestions that
they may not realize are insulting.? It's easy to blame the person
who had the problem, and ignore the person who CAUSED the problem.
Anyway, Wayne... it sounds like you've got a pretty good support
base - the reality of poverty in the USA is that's the only way
most poor people survive.? I was worried about that.
I can suggest a lot of good books (and research articles) on this
subject, but will only mention a couple:
The Poor Pay More by Caplovitz.? A dated book from the
60s, but what he writes is still very true and accurate today.?
I've personally witnessed it numerous times in the last 20 years.
Blaming the Poor by Dr. Susan Greenbaum.? A recent
publication, it explores the reality of poverty and how we got to
where we are in this country today.
Funny thing is that most working poor don't realize that they ARE
poor (until they get hit with something like a burned truck).?
It's not shameful to be poor, what IS shameful is that the things
that would lessen the problem are strenuously fought against.
Bob
On 5/7/19 4:58 AM, Wayne Leake wrote:
toggle quoted message
Show quoted text
?Insurance
on older vehicles costs more than the vehicle is worth, and
usually has a high deductible.
?The
truck is a 1983
?Had
it since 2004.
_._,_._,_
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Locked
Re: bad news and a bit of good news.
?Insurance on older vehicles costs more than the vehicle is worth, and usually has a high deductible. ?The truck is a 1983 ?Had it since 2004.
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Collins Amateur Radio Club - excellent BITX article
The attached April?Collins Amateur Radio Club Newsletter has a very comprehensive BITX article by?Vince Loschiavo N2AIE which he has posted to the FB group.
Though it worthwhile to post here, hope Vince doesn't mind.
73, Bob GM4CID
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Collins Amateur Radio Club - excellent BITX article
The attached April?Collins Amateur Radio Club Newsletter has a very comprehensive BITX article by?Vince Loschiavo N2AIE which he has posted to the FB group.
Though it worthwhile to post here, hope Vince doesn't mind.
73, Bob GM4CID
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Locked
Re: bad news and a bit of good news.
Did not take insurance ? I take the maximum possible for all my
vehicles.
At 05-05-19, you wrote:
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?I went to town
yesterday to get hay and do a bit of shopping.
?When I got home, I thought the damned thing was steaming. Turned
out to be smoke. The truck went up in a blaze, only 2 or 3 items can be
salvaged. On the good side, at least none of my radios were in it, other
than a good AM/FM/CD Stereo.
?The 2 meter radio I had in it had decided to not turn on, and with
the kind of switching used in it, plus the SD devices,Impossible for
me.? I gave it away for the cost of shipping.
I took a few pictures of my truck today, and checked to see if anything
in the "tool box" might still be okay.
?Nope. Only a good part of the alfalfa, and an item on the floor
that will need some cleaning up and treatment.
?Don't think anything else will be able to be saved, but just maybe
the gear/pully puller. Did not feel like doing much out there, as it is
warm. Wait till the sun drops and it cools down some.
Over $100.00 in food and pother items all up in smoke.
?Will be a while before I do much with my BITX radios now.
?Wayne WA2YNE
?I should add, I don't have funds to get another vehicle..........
Was just getting things caught up and was needing another tire for a
spare.
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Locked
Re: bad news and a bit of good news.
?Forgot to add, I have a gofundme set up to try and get enough for another truck.
?Have $725.00 in it so far, and a couple of checks also, one for $500. from a relative, who is NOT rich, but evidently reasonably well off.
?May be others planning something.
?Plus the one church here is paying the current electric bil, and other person wants to pay on my water bill, plus anonymous donors will help with animal feed. I go through a large round bale of Alfalfa every month, plus my neighbor buys 3 to 6 or so small bales around the end of the month. She is another animal lover, and will not let them starve, even though she often has a hard time.. ?My animals are my "family, I love them all, and they love us back. ?even though they get into mischeif..... Especially the goats.
?Casper The Friendly Goat, who is the herd sire, keeps getting out, then waits around the gate to get back in. He somehow figures out how to escape, but not how to get back in.
?A few of the kids (babies) figure out how to get out and also back in, till they get too big to squeeze through small holes...
?If i could get the goat and sheep fencing I bough installed would be harder for them to escape. It has holes way smaller than they can get through. Pygmy kids might be small enough, LOL ? ?My facebook page:
?
?Wayne WA2YNE
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Locked
Re: bad news and a bit of good news.
?The only other things that are salvagable are a gas container with a bit of gas, wonder it didn't catch, plus a gallon of mixed antifreeze.
?Will remove the Reese hitch, and hopefully the belly bar. Have to jack the truck up to get at it, because the front tires are blown/burnt. ?Plus my ancient Sears 1/2 ton jack that still works. It is sitting at the back of the bed. ?Also 2 antenna whips, one from the AM/FM antenna, and one from the Larsen antenna. That one does not look pretty, but can still be used., as well as the spring, which is also the whip mount. ?the rear tires look to be okay, and I can maybe salvage the gas from the tank. It looks like it did not catch at all, but can't see the front of it. A big 30 gallon plastic tank, and I had put gas in 32 miles ago. So at least 4 gallons in it if intact. No point in wasting it. ?Don't have enough containers for all of it though. the one in the bed of the truck is maybe 2 gallons, but still has maybe 1/2 a gallon, plus a couple others, maybe 3, not sure. ?I was not sure where the whip from the Larsen was, till I looked and saw it poking back from the roof.
?Of course, the mount is whacked...
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Hi John,
no problem - there is no excuse needed. And thanks already in advance.
You are not obliged top help at all ? :-)
Sascha
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Good.? I need one provided it can use with uBITX MULTIBAND Version 5, 2018 KIT . 73s
On Mon, May 6, 2019 at 4:58 AM STEVE via Groups.Io <behlmer= [email protected]> wrote: I would like one please.? Steve Behlmer. KE7GO? On May 5, 2019, at 4:18 PM, vk6qa < vk6qa@...> wrote: Hi Nick ? Did you consider placing a RX pre amp on your new board? ? ? HI All.
Thanks for the interest,
Its been slow going, I'm about 95% complete, just need to confirm spacing/sizing and go over it all again...
Ill get there, eventually.
73 Nick VK4PP
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Re: Equipping an Electronics Lab on the Cheap by Ed Nisley KE4ZNU
kj5w Frank.
A well spent $10 insurance policy for electric & electronic as well as anyone doing walk in repair or maintenance.?
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Raj vu2zap