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Re: BITX40 build for SOTA/POTA operation
WalMart has the Shakespeare Wonderpole 20' collapsible rod for $30 ish. ?It works great for me! ?You'll need to figure out guying though.
If you want an end fed half wave, Sotabeams Pico Tuner is 10w rated and very simple to make, but single band. ?While you're ordering, pick up a couple wire winders and a guying ring (If I recall, the 22mm ring works great on the Wonderpole with a bit of electrical tape to bulk up the pole where you want the ring to sit) If you want a dipole, you can leave the last section of the Wonderpole collapsed - You need the extra rigidity to support the extra weight of the coax. I second the motion to just get out there. ?Don't let the perfect be the enemy of the good here - I guarantee your setup will change as you find out what you need in the field. ?Fastest way to learn is to just get out there. |
Re: raduino v1.27 released (improved suppression of spurious burst)
Pavel Milanes Costa
¿ªÔÆÌåÓýEl 07/11/17 a las 01:58, Mike Woods
escribi¨®:
I am in the process of adding the following features/mods: In the actual state of the project/sketch you don't have as much as 5 free ports, I will suggest for version 2 the use of a I2C I/O expansion board as we already has a I2C bus and the code must be easy to implement. If this is the path I will use those I/O ports for Output only and in non time-critical outputs to make the delays at minimum. Allard: I have some experience with using the Si5351 for VFO/BFO from another active project, just let me know when the v2 start to develop to contribute with ideas/code/tips/etc. -- 73 CO7WT, Pavel. |
Re: raduino v1.27 released (improved suppression of spurious burst)
Port expansion can be had for a few dollars:?. What about adding a second Nano? Would still be cheaper than upgrading to a SAMD board. Oh, and speaking of digital modes, I've experimented with AFSK decoding (for APRS) on a Nano and it's ADC is just fast enough :)
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Re: raduino v1.27 released (improved suppression of spurious burst)
We've now got over a thousand units in the field. ?
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Allard's been creating code for the majority of Bitx40v3 users who don't want a major project on their hands, they want existing hardware to work better with a minimum of mods. And he's doing an incredible job of that. ? Look for the donate button to his favorite charity in his github page if you agree. But yes, it would be nice for a few of us to move to something bigger than a Nano. I doubt we will all agree, as we have different goals in mind. But we should be able to structure things such that we can swap in the various processors and displays available. Here's a few of the features I would like to see: ? ? Arduino compatible with standard libraries available ? ? ARM 32 bit core, up from the 8 bit ATMega stuff. ? ? 12 bit ADC's ? ? More IO pins, RAM and flash ? ? Cheap Here's a couple contenders, neither of which I have tried: ? ?? ? ?? Moving up to a Teensy3.6 with floating point in hardware would be great for experimenting with digital modes, but at $30 it might not be the first choice for many users of a $59 radio. The Arduino world is stuck at 5v for some reason, the ARM processors and most? peripheral chips that have come out in the last 20 years are at 3.3v. I would move to a 3.3v i2c display if speed and noise were not issues. The Raduino with its soldered down Nano hinders this evolution. But we could glue a small PC board for the si5351 to the back of the Bitx40v3 main board then we can swap processors and displays at will. ? Allard's most recent sketch uses a non-standard Arduino library for interrupts to deal? with the carrier burst, that part of the code should be if-def'ed out so it is easily removed when using something other than an ATMega processor. ?There are other ways to suppress the carrier burst. Jerry, KE7ER On Mon, Nov 6, 2017 at 10:58 pm, Mike Woods wrote:
My feeling is that it would be good to decide collectively, on where we go with the processor!? ?Choices seem to be: |
Re: BITX40 build for SOTA/POTA operation
On Tue, Nov 7, 2017 at 06:06 am, <quietglow@...> wrote:
but I do have to find a way to operate w/o a treeCheck out W7RLF's solution He is using an L match tuner.? If you are looking for light and easy you might try ? My advise as a master over thinker, stop over thinking it and just get on the air.? The radio will work just fine in the plastic box it shipped in or a cookie tin or whatever as long as you aren't white water rafting or rappelling into the grand canyon.? Hot glue the heck out of everything for extra insurance.? I can almost guarantee you that whatever case/antenna/power/etc... decisions you make you will want to change after using them anyway.? Like Mike Tyson always said, "Everybody has a plan until they get punched in the mouth".? Get on the air before you are waist deep in snow.? Once you figure out what works or doesn't you can build your dream set up. |
PlatformIO for Raduino?
Hello, everyone - bitx newbie here. I just got my bitx40 this week and have it wired up for receive while I wait for the next VE exam session. In the mean time I've been looking through the Raduino code as there are several modifications I'd like to try. After getting frustrated with the Arduino IDE, I searched around and discovered PlatformIO. It's pretty nice.
I took a stab at reshuffling the Raduino code around to work in PlatformIO:? IMO, the sketch is rather large and would benefit from some refactoring/splitting up. This is not easily done with the Arduino IDE, but relatively straightforward with PlatformIO. It has much nicer way of dealing with libraries. Rather than everything coming from one global libraries folder, you can specify project-specific libraries through configuration: [env:nanoatmega328] ?platform = atmelavr
?board = nanoatmega328
?framework = arduino
?lib_deps =
? ?[email protected] Also in your source tree, you can include your own project-specific libraries (details in this ). So, is this something people would be interested in trying out? |
Re: BITX40 build for SOTA/POTA operation
I like all these antenna options, but I do have to find a way to operate w/o a tree. The MI parks ask people not to run anything up into trees because of concerns about moving parasites around. I am thinking the tenkara fishing rod option or possibly a magloop. Mag loops seem to get much simpler to build when you're talking QRP power (no vacuum capacitor needed).
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Re: Signal generator.
¿ªÔÆÌåÓýRaj, thanks a lot, now it compiles too on my Pc, Der Sketch verwendet 5882 Bytes (19%) des
Programmspeicherplatzes. Das Maximum sind 30720 Bytes. so only 5,8 kB thanks a lot!! Am 07.11.2017 um 14:36 schrieb Raj
vu2zap:
Henning, |
Re: Signal generator.
Henning,
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I added these libs and it compiles as is.. I could not send this to the group so here are the dropbox links Raj At 07-11-2017, you wrote: Michael, |
Re: BITX40 build for SOTA/POTA operation
Nice case peatmoss. I like that you brought out a usb connector so you don't have to disassemble every week when Allard has a great new software upgrade. It looks like another pot without a knob was also added. What is it for?
I usually just carry 2 lengths of 1/4 wave wire on a winder. I throw one end up in a tree and lay the other on the ground. The downside of a half wave is that you need a longer wire which is tougher to get up in the air. The plus is that if you can use a half wave wire you can get the high current point up in the air. ??? Bob ?????? KD8CGH |
Re: PE1NWL raduino 2.0
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On Nov 6, 2017, at 21:05, Larry Smith <815cpu@...> wrote:
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Re: Signal generator.
¿ªÔÆÌåÓýMichael, after commenting out the two header files You stated below, I had to comment out a lot more lines, then it compiled, only 5 k of code, see the attached sketch. But i am not sure if this code will give a working result. I got Your pcb, but have not populated it due to non existing files i.e. schematics, layout. I remember You sent it to me but momentarily I can not find these files... Henning Am 05.11.2017 um 22:06 schrieb Michael
Hagen:
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Re: raduino v1.27 released (improved suppression of spurious burst)
Allard
Your software is impressive!? I have been using v1.25 and adding in some features for my BITX40s (x2) - Voltmeter, SWR and S-Meter.? ?Space and ports represent a major issue now! I note your interest in using one of the PLLs instead of the BFO.? This would be great!? It would also make it easy to add in PBT and adjust carrier offsets and not have the issue of USB being subtractive (so not as deaf - unless you remove the caps in the VFO buffering stages).?? I am in the process of adding the following features/mods:
My feeling is that it would be good to decide collectively, on where we go with the processor!? ?Choices seem to be:
I would be interested in what others think.? ?I would really like a better? UI (User Interface).? Pushing a button multiple times is not really very user friendly, and rotary encoders can do the job so much better for both menu select and tuning functions. 73 Mike ZL1AXG |
Re: RX and TX LED (LEDs 101)
we generally use RED (1.4V) for Tx and Green (2.1V) for Rx. ?let us imagine? 2V as led drop.regards Sarma ? On Mon, Nov 6, 2017 at 9:09 PM, Vince Vielhaber <vev@...> wrote:
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