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Programing Help for updating Bitx40
Jeffrey Peters
#Bitx40help
Greetings group, I am very new to programing and would really appreciate anyone who would be willing to reprogram my new BITX40 with the newest software . I would like to use my Bitx40 on the CW mode.? I am willing to learn about the reprogramming, but I do not have a clue where to start.? I have programed a Leno? with the blinking program, and even adjusted the time on and off by changing the code and reprogramming.? I just do not understand how to copy the updated code sketch and the libraries needed.? Thank you for you time and help with this matter. Jeff, K9JP |
Re: Two little circuit boards for my Bitx40 txcvrs
Ive got two of these that i need to find some time for. There is a module called "one big punch" which is think uses a chip from this family and the elecraft k2 ssb module uses one also.
Im thinking of putting in my mic housing. Will need some voltage regulation down 5v am presuming the electret module will run off 5v ok and some caps to isolate the power and the signal which run on the same wire. Will aim for 6db of compression. There is also some thinking re the input cap and the big cap on the board to target frequency response, ie I think there is some low cut that could be achieved.? Regards Simon VK3ELH? |
Re: uBITX vs HW-8
¿ªÔÆÌåÓýI remember buying the HW 8 and matching power supply back in 1981 and if I remember right I paid just a bit over $100.00.? Ordering from the Heathkit catalogue.? Wish I still had it.
Sent from my Sprint Samsung Galaxy S? 6.
-------- Original message --------
From: "Jim Smith via Groups.Io" <zx97lite@...>
Date: 12/10/17 09:20 (GMT-06:00)
Subject: Re: [BITX20] uBITX vs HW-8
Hi Farhan,
Yes!? I remember looking at the HW-8 in the Heathkit Catalog and dreamed of owning one but as a poor College Student it would have to wait. But now even someone of modest means can join the fun on the HF Bands. Pete? WB9FLW P.S. Need to find a inflation calculator and see how much $129 in 2017 is in 1970 dollars as a comparison. |
Re: Reverse polarity diode circuit
¿ªÔÆÌåÓýI still think the Fast Acting Fuse and Diode is the answer. I got small pigtail 4A fuses from All Electronics.? They are 30 cents.? I wrapped a spare inside BitX. If I ever Blow it, the
replacement is right there. They have wires
soldered on them, no need for a big Fuse Holder on the back of
BitX. Poly fuses take time
to go off.? They typically "Open" at 2X there hold current.?
So you have to make design decisions. I never have reverse biased my BitX?? So It it should be a rare event. I will get Fast Response if I do, better protection than Poly Fuse. A 3 Cent 1N4002 will blow the fuse. To me, considering the rarity of the event, it is the Best Solution!? But, of course, there are a lot of Solutions. Yes, I know this
subject has been pounded too much, but I am too waiting for
UBit I ordered on the 9th! On 12/15/2017 2:31 PM, Richard Spohn
wrote:
The polyfuse looks very interesting, I had never heard of these before. Downloaded the spec sheet at Jameco but there is very little info on it. How do you reset a polyfuse, or does it reset itself after voltage is removed? What is the trip current? How do you connect it, or do you connect it the same as any regular fuse (the spec sheet doesn't even have a sample schematic...) -- Thanks and 73, Rich WB2GXM -- Mike Hagen, WA6ISP 10917 Bryant Street Yucaipa, Ca. 92399 (909) 918-0058 PayPal ID "MotDog@..." Mike@... |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
You will love this on CW I had to tone it down to get a clean 5W it was near 8W before (I have amps with 5w drive for qth ops). 1st contact was w1aw for the state ops they did last year. I haven't updated to the new firmware and use a qrpguys.com keyer that works great.
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Re: Reverse polarity diode circuit
The polyfuse looks very interesting, I had never heard of these
before. Downloaded the spec sheet at Jameco but there is very little info on it. How do you reset a polyfuse, or does it reset itself after voltage is removed? What is the trip current? How do you connect it, or do you connect it the same as any regular fuse (the spec sheet doesn't even have a sample schematic...) -- Thanks and 73, Rich WB2GXM |
Re: Two little circuit boards for my Bitx40 txcvrs
Also possible to use two soldering irons (one to heat each end of the SMD component).? They will stick to one of the irons so be prepared to wipe them off with a sponge or other iron cleaning tool.? _._ On Fri, Dec 15, 2017 at 3:03 PM, Dale Brooks KG7SSB <kg7ssb@...> wrote:
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Re: Two little circuit boards for my Bitx40 txcvrs
John McFadden
¿ªÔÆÌåÓýOr crush the SMD with clippers, then remove each half individually with a small solder tip. John On 12/15/2017 5:03 PM, Dale Brooks
KG7SSB wrote:
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Re: Small question about LCD mounting
Dan and all, the proper way would be to position your decal exactly
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before using the Solvaset. When you apply the Solvaset, DO NOT TOUCH THE DECAL AGAIN until it is perfectly dry -- maybe a couple of days to be sure. 73 - Rich WB2GXM On 12/14/17, Dan Reynolds <on30ng@...> wrote:
Also a company called Microscale makes decal application products. Hobby |
Re: Two little circuit boards for my Bitx40 txcvrs
You may well be the first to try these out.? It is madness season in ZL with all projects having to be finished before Xmas and long summer vacation time! Mike ZL1AXG On Sat, 16 Dec 2017 at 7:53 AM, Arvo KD9HLC via Groups.Io <arvopl=[email protected]> wrote: I ordered the two little circuit boards as well. |
Re: Two little circuit boards for my Bitx40 txcvrs
Dale Brooks KG7SSB
When you use a hot air gun for soldering or removing parts you stand the risk of causing other close parts to move around. I just use my soldering iron and rotate the heat from one end of a component to the other and finally it becomes hot enough to move around so just flip it off the pads with the iron tip and the part will be detached. I've never lifted a pad or damaged any board using this method so far. Good Luck,,, Dale On Fri, Dec 15, 2017 at 2:43 PM, Ken KM4NFQ <km4nfq@...> wrote:
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Re: Two little circuit boards for my Bitx40 txcvrs
Ken KM4NFQ
On Wed, Nov 22, 2017 at 1:21 AM, Mike Woods <mhwoods@...> wrote:
Hello Mike, A Hot-Air Gun seems to be the recommended way to remove SMDs from a PCB. But please be careful. I recently bought one, and I have toasted a couple of "practice PCBs" while learning how to use it. I still have some more practice to do before I feel comfortable using it. Regards, Ken, KM4NFQ |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
As Jeff said, this group is really great and very helpfull - tnx for your replies :-) @Brian: I guess you nailed it!? Tomorrow I'll get round to check your linked Post - mny tnx! BTW: My test equipment is the network analyser kit "FA-NWT plus", sold by the German Radio Amateurs Magazine "Funkamateur" -> . Unfortunately this version is no longer available, you can only try to buy this as a second hand set. But, a brandnew kit is advised for the next year, maybe it will interest you :-) ? ? ? |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
Jeffrey, you don't necessarily need to do any programming.
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Just download the software to your PC and then upload it into your Raduino via a USB cable. To do this you first need to install the Arduino IDE onto your computer. See /g/BITX20/wiki/Raduino-Topics for instructions related to installing/uploading the software. 73 Allard PE1NWL On Fri, December 15, 2017 22:08, Jeffrey Peters wrote:
Thank You Allard, |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
Jeffrey Peters
Thank You Allard, I have never programed, but that will be the next thing to learn.On Fri, Dec 15, 2017 at 4:03 PM, Allard PE1NWL <pe1nwl@...> wrote: CW works great on the BitX40 with raduino_v1.27.3, download it from --
Not all of me will die - - - The good I do will live forever.? <>< |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
CW works great on the BitX40 with raduino_v1.27.3, download it from
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Just a few minimal mods are required, see for details You may also want to add the capacitive touch keyer mod (4 resistors): 73 Allard PE1NWL On Fri, December 15, 2017 21:43, Jeffrey Peters wrote:
Thank you Dale, |
Re: Not Arived yet
Rick S
Mine was confirmed with a tracking number also, but DHL's site would not show a status, something about an error that affects many deliveries.? ?DHL tried to deliver it today and I was not there to receive it, so they will attempt redelivery next week!? Bummer... also, the DHL site STILL has not updated the tracking status of the order, so beware of that. Rick ND4F On Fri, Dec 15, 2017 at 3:27 PM, William Londree <ventura_bill@...> wrote: Yippee! I just received an e-mail from HF Signals that my order was confirmed with a tracking number. I ordered on December 9th also. So hang in there. Takes timne to catch up. |
Re: BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
Frank,
Your test equipment is impressive! I would love to have access to something like that. What you are seeing looks very much like what I reported in a post in March,? /g/BITX20/topic/4521126#23229. It appears to be related to harmonics of the 5MHz LO and 12MHz IF. For a long time I have been working on other projects but I have recently returned to the Bitx40 using Allard's sketch. I believe the answer is to use a 19MHz VFO and switch sidebands by moving the 12MHz oscillator and generating USB to mix with 19MHz and end up with LSB on 40m. To do that I need to change the crystal filter (for a 6 pole??) and get a reasonably steep slope on the lower side. Fairly major changes. It would also be interesting to compare the use of square wave and sine wave drive to the final Tx mixer. 73 Brian. |
Re: uBitX up and running
Jeffrey Peters
Thank you Jim, I will watch for more reports and any videos that might show the CW operation.On Fri, Dec 15, 2017 at 3:43 PM, James Shaver (N2ADV) <N2ADV@...> wrote:
--
Not all of me will die - - - The good I do will live forever.? <>< |