Re: Verifying errors with version 1.27.7
KC9SGV
"I wish I had some prior Arduino expertise...."
Arduino expertise can easily be had by purchasing a cheap Ebay sourced Arduino NANO and
doing some of your own software for that device.? It is easy to use the "examples" code as basis
for your own digital voltmeters, period counters, frequency counters, audio generators, and
so on.?
Arv? K7HKL
_._
On Sun, Jan 21, 2018 at 10:54 AM, KC9SGV <kc9sgv@...> wrote: The sketch now compiles after getting some more libraries. I still get an upload error.
With the BitX40 off, the IDE does not see the com port. With the BitX40, on, the serial monitor shows the *Si5350 ON, but the IDE returns an upload error after compiling the Sketch successfully.
I wish I had some prior Arduino expertise.... KC9SGV
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Re: uBITX woes, feeling disheartened.
#ubitx
Hi All
I have a suggestion, note I dont have a uBITX yet, I have one ordered so I cannot test this.
?If you disconnect the PA power at the DC input socket the transmitter wont produce RF.
The path from the antenna to the PA output transformer is DC when the PTT is activated, note the PA transformer end it at earth.
Use a multimeter set to ohms and measure the resistance between ground on the radio board and the antenna output while activating the PTT, it should be very low.
You also need to check the bands that activate the other LOW pass filters.
Hopefully this can help steer the thinking in others.
Best regards
Chris
ZL2TCH?
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Re: Verifying errors with version 1.27.7
I'm running Win 7 most of the time and I have this happen, too. Sometimes, unplugging/plugging the USB connectors fixes it. Other times, I have to close the Arduino IDE completely, and reload it. Sometimes I unload the IDE and also unplug the USB connector. Usually, I get an audible sound from the computer when the system finds the port. Other times when it doesn't see it, I get a rapid beep-beep-beep tone telling me it doesn't see it, but knows the connector is connected. If that happens, I go to the Drivers directory of the IDE and run the installer. If it still doesn't work, I do a total reboot of the system. If none of these work, I take a nap.
Jack, W8TEE
From: KC9SGV <kc9sgv@...>
To: [email protected]
Sent: Sunday, January 21, 2018 12:54 PM
Subject: Re: [BITX20] Verifying errors with version 1.27.7
The sketch now compiles after getting some more libraries. I still get an upload error.
With the BitX40 off, the IDE does not see the com port. With the BitX40, on, the serial monitor shows the *Si5350 ON, but the IDE returns an upload error after compiling the Sketch successfully.
I wish I had some prior Arduino expertise.... KC9SGV
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Mine is a 2watt rated ex-Yaesu VR5000 speaker. 8? 2w 3inch.
Think you have to take into the baffle effect of the panel that its mounted behind, mine sounds good, saying that I did plug it into my Yaesu SP-8, decided that the 3inch speaker was far better.
Phil - G7BZD
On Sun, Jan 21, 2018 at 6:47 PM, ohwenzelph via Groups.Io <Ohwenzelph@...> wrote: On Sun, Jan 21, 2018 at 09:25 am, <tommason56@...> wrote:
Gents. Many thanks for your responses, very much appreciated.?
73.
Tom
M3TEG.
Best speaker:
Impression/suspicion from following this thread for a while is that with the Bitx40v3, which uses a LM386, that people have been happiest when the speaker is not tiny, so maybe 4 to 8 inches would be good, and it seems like 16 ohms might be better than 8.
Nobody mentions how many watts the speaker is rated for so maybe that¡¯s not an issue.
If you do some comparisons and think you have found a definitive solution to the question then please post it. I have tried a bunch of smaller 8 ohm speakers and some are a bit nicer than others but so far have no conclusion as to which direction is best. There is a lot of high pitched sound that I do not need, above 3 kilo hertz, that comes out of my bitx40v3, I have attenuated it some but don¡¯t know where it¡¯s coming from, and I would like to get rid of it at the source.
Good luck!
?
jerry aa1of/6
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There is a company MegaWatt in Santa Clarita California that markets a very similar looking line of power supplies, but they are heavily filtered and regulated. They are twice the price as what you link, but I can personally attest to their quality. There are many knock-off clones marketed from China that are junk from a radio use standpoint.
Thomas Noel
KF7RSF
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On Sun, Jan 21, 2018 at 09:25 am, <tommason56@...> wrote:
Gents. Many thanks for your responses, very much appreciated.?
73.
Tom
M3TEG.
Best speaker: Impression/suspicion from following this thread for a while is that with the Bitx40v3, which uses a LM386, that people have been happiest when the speaker is not tiny, so maybe 4 to 8 inches would be good, and it seems like 16 ohms might be better than 8. Nobody mentions how many watts the speaker is rated for so maybe that¡¯s not an issue. If you do some comparisons and think you have found a definitive solution to the question then please post it. I have tried a bunch of smaller 8 ohm speakers and some are a bit nicer than others but so far have no conclusion as to which direction is best. There is a lot of high pitched sound that I do not need, above 3 kilo hertz, that comes out of my bitx40v3, I have attenuated it some but don¡¯t know where it¡¯s coming from, and I would like to get rid of it at the source. Good luck!
?
jerry aa1of/6
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Some speakers require a specific damping factor to sound the best. A small speaker in a small case, e.g. a microphone, has a high damping factor, it keeps the speaker cone travel from moving too far. Your fingers may be doing the same thing. Volume depends on the amount of air the speaker moves. With no damping it may be moving out to the maximum point of travel and just vibrating at that point instead of using the full travel possible from the speaker. tim ab0wr On Sun, 21 Jan 2018 07:58:06 -1000 "Steve Thatcher" <stevep2p@...> wrote: While Tom's got your attention on speakers, I've got a interesting
problem: I have a 1.5", 8 Ohm speaker I liberated from an old FRS
radio. As you can imagine, the sound quality from this speaker on the
BTX40 is not very good. However, when I encircle the speaker with my
thumb and forefinger, the volume and clarity improve dramatically.
I've tried putting it in a piece of PVC, or surrounding it with a
metallic "ring", and no change. What gives? Do I have magic
fingers? BTW the MFJ 281 accessory speaker is working pretty good
for my '40. My first (of many, I suppose....) post to the group.
Hope I did this right....Aloha, Steve WH6ST
<>
Virus-free.
www.avg.com
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<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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I bought something that looks pretty much exactly the same.? Be advised, as soon as you put any load on it, the fan will come on.? I just moments ago put a load on mine (a CB radio under TX), and the fan noise increased substantially.? I used the CB to test it as I recall previously using the PS and having it go to 16-18V under load (hence the CB- didn't want to risk my good stuff....).? This time it stayed at 12.8 or so.? YMMV.? Aloha, Steve WH6ST
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Re: #ubitx and 6 meters
#ubitx
Thank you for testing that, Marco!? I really appreciate it!? Thanks also for the comments, Bill.? When my ubitx finally arrives, I'll do some follow up.
Tom
AB7WT
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I'm looking at this 12v 30a/360w power supply that was suggested by someone recently.? It has adustable output and runs a whopping $21.49 delivered from Amazon.? If it doesn't suck, it'll be handy to have around.
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While Tom's got your attention on speakers, I've got a interesting problem:? I have a 1.5", 8 Ohm speaker I liberated from an old FRS radio.? As you can imagine, the sound quality from this speaker on the BTX40 is not very good.? However, when I encircle the speaker with my thumb and forefinger, the volume and clarity improve dramatically.? I've tried putting it in a piece of PVC, or surrounding it with a metallic "ring", and no change.? What gives?? Do I have magic fingers?? BTW the MFJ 281 accessory speaker is working pretty good for my '40.? My first (of many, I suppose....) post to the group.? Hope I did this right....Aloha, Steve WH6ST
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Re: Verifying errors with version 1.27.7
The sketch now compiles after getting some more libraries. I still get an upload error.
With the BitX40 off, the IDE does not see the com port. With the BitX40, on, the serial monitor shows the *Si5350 ON, but the IDE returns an upload error after compiling the Sketch successfully.
I wish I had some prior Arduino expertise.... KC9SGV
On Sat, Jan 20, 2018 at 9:04 PM, Vic WA4THR via Groups.Io <vhklein@...> wrote: You do need to include some libraries or it will return errors. Once that was done in my case, every sketch has compiled and loaded to the Raduino without a hitch.
=Vic=
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Gents. Many thanks for your responses, very much appreciated.?
73.
Tom
M3TEG.
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I only ever used headphones much better when portable chris G0WFH
On 21 Jan 2018 16:26, "philip yates" < phil@...> wrote: Using an 8? 2 watt 3 inch speaker with my Bitx40, sounds really nice. Now looking for the same for my ?Bitx.
Phil - G7BZD
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Re: Software support Request for Full QSK BITX40
Here ?ya go as best I can do on the road. I hope anybody that does this with the relays in their radio posts their findings. I would like to bless it with my ?approval, but I won¡¯t do this without having tested it for hidden demons that might arise in a contact bouncing environment. Resistor values are not critical and only serve as base current limiters. This should solve the self interference problem in all single channel systems of similar design, and is an absolute requirement to achieve Full QSK performance. If better understanding is needed, or important enough to optimize; you will need to 1) wait for me to test, document, and publish it, or 2) work through it on your own... a faster and fairly simple and basic task. 72 Gary, N3GO  7
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Using an 8? 2 watt 3 inch speaker with my Bitx40, sounds really nice. Now looking for the same for my ?Bitx.
Phil - G7BZD
On Sun, Jan 21, 2018 at 3:54 PM, Tim Gorman <tgorman2@...> wrote: Tom,
I don't know the impedance but I have always used commercial
communications speakers like this:
They just seem to work better with every radio I have owned, from Icom
to Kenwood to Yaesu. I suspect even with a bitx/ubitx.
I even used to have an old outdoor movie speaker that was terrific but
it got lost in my various moves in the past. Shame.
tim ab0wr
On Sun, 21 Jan 2018 00:23:21 -0800
tommason56@... wrote:
> Hi. I'm new to these kits but before I get too involved with the
> building is there a specific value of speaker (3.2/8 ohm) that
> performs better. Any help greatly appreciated.
>
> 73.
> Tom.
> M3TEG
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Thanks Jeffrey. Your reply is very much appreciated.
73.
Tom
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Thanks Dennis, much appreciated.
73.
Tom.
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LM386 datasheet on page 7 says 4 to 32 ohms?
? ??
I'd go with 8 ohms.
Generally speaking, a larger diameter speaker is more efficient than smaller.
Bigger heavier magnets are better.
Differences between speakers can be quite drastic in both sound volume and fidelity.
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On Sun, Jan 21, 2018 at 12:23 am, <tommason56@...> wrote:
Hi. I'm new to these kits but before I get too involved with the building is there a specific value of speaker (3.2/8 ohm) that performs better.?
Any help greatly appreciated.
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Re: Software support Request for Full QSK BITX40
Bill, QSK while ragchewing or contesting is pretty much of a waste. Semi-qsk is fine for those. But I used to use QSK all the time when I was traffic handling on cw. You didn't need to send a whole string of characters for a fill when the other end didn't copy. The other end could just break in immediately after the missed character(s). Been a ham for 54 years and did a lot of cw traffic back in the day. It kind of died off about 20 years ago and I don't need it any more. Semi-qsk with the modern radios seems to work fine for me. tim ab0wr On Sun, 21 Jan 2018 10:47:02 -0400 "K9HZ" <bill@...> wrote: We were thinking the same thing... shorting the opposite rail to
ground of the mode you are in. My circuit was a bit different using
a modified schmitt to the base of the transistors but it provides the
same result (that way one is not on while one is off at any time).
And i know i can design a diode switch that takes less current than
the relay coil so good there.
Im a CW op too for close to 50 years ... in major contests too but I
never got the QSK thing. Seemed like a telephone call in the middle
of another call to me but thats just me. It would probably work for
my wife who thinks much differently than me.
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ
PJ2/K9HZ
Owner - Operator
Big Signal Ranch ¨C K9ZC
Staunton, Illinois
Owner ¨C Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
email: bill@...
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Steve