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Re: 40 meters dead (again)
Tune around 7.047.5 up or down 1 KHz to snag W1AW code practice M-F (weekdays).? Look on the web for the schedule. Larry On Wed, Apr 5, 2017 at 2:48 PM, Larry Acklin <acklin@...> wrote:
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Re: 40 meters dead (again)
I hear the 'ol boys around ?.150-160 some evenings.? CQs also at times in the same area.? Foreign language in the lower end of 150-160 range. If no one is talking is the band dead? Or is everyone listening? That bit about trees falling in forests... Lots of CW activity most evenings at .30-60 early- till 10 or 11 PM EST. If I tune the CW side and hear nothing going on, I warm up the soldering iron instead. 73 Larry KB3CUF On Wed, Apr 5, 2017 at 2:36 PM, davetelling . <davetelling@...> wrote:
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Re: CLAREMORE, OK Hamfest this weekend and my BITX40
To:??Lawrence Macionski I have uploaded a fixed copy of the raduino software. Look for it in the files section. It has a description of what was fixed. It's not your fault. The directions are a bit lacking, but adequate. Except for alignment?step?#5 should instruct you to adjust R136 to obtain that 1 Amp current draw. Which will give you full power without overheating, or distorting anything. Ownership of this radio requires you to be a tinkerer, and an experimenter who believes they are capable of figuring out how to hook it up, set it up, and tweak it to suit you. It's not for experts either, but some solid documentation for the new comer would eliminate a lot of problems we are constantly talking about. I think Farhan should finish writing?the instructions himself. Since it it his own product.? |
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Re: 40 meters dead (again)
Some better news, kind of... this morning I heard a QSO on 7.255 MHz on my IC-718. I swapped the antenna cable to the bitx40 and heard the same QSO, about the same loudness, AND showing exactly the same frequency, so that was encouraging. I'm just amazed at how poorly my setup works! I have an OCF 40m dipole, that typically gives me SWR in the 1.3-1.5:1 range, in a slight "V" configuration, with the feedpoint at about 25 feet, and th eends a bit lower. When prop is better, I can typically work most of USA, AK, and HI, and some south/central American countries using JT65, but SSB almost always seems totally dead; rarely do I ever hear any activity on SSB. I'll keep trying, though, especially once I get the TX side up and running! |
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Re: Quick turn around
Dave Thanks Randy On Wed, Apr 5, 2017 at 11:05 AM, davekn4ok via Groups.Io <davekn4ok@...> wrote:
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Re: I think this is absolutely amazing!
Here's the video of the moment my Pixie started to give oscillation.? Hope to purchase the Bitx40 soon!? 73 Horacio Nigro, CX3BZ? Uruguay? El 5 abr. 2017 15:06, "hanigrodx@..." <hanigrodx@...> escribi¨®:
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Re: I think this is absolutely amazing!
Hi from Uruguay. It's amazing how these little rigs have renewed the motivation. I am participating in a small group of veterans and middle aged fellows that have modified the Pixie, (~500mW - CW) to include a 700 Hz filter. We've in the process of getting all the components at local stores, and began to solder. My own circuit board is already oscillating and amplifies audio. In the coming weeks we hope to finish it and put it on the air.? Many of us don't have either an antenna to make it resonate with the little xcvr. We plan in the coming months to build a 5 W amplifier and several other projects (Noise Killer, Z-Match, loop).? And the Bitx40 will be ?pretty much our next toy. So, you can imagine the enthusiasm of renewed experience, friendship and learning. There is not only solder in those meetings , also some pizzas are usually in the afterhour.? We have the great help of a tutor in the group ?and friend, who gives his best effort in his advice.? 73 Horacio Nigro? CX3BZ? URUGUAY? El 5 abr. 2017 10:42, <dfdavis@...> escribi¨®:
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Re: Quick turn around
Here you go Randy N3-715
Thanks -----Original Message-----
From: Randy Hall <listk7age@...> To: BITX20 <[email protected]> Sent: Wed, Apr 5, 2017 12:29 pm Subject: Re: [BITX20] Quick turn around Dave
What is your serial number? I'll add you to the list.
Randy
On Wed, Apr 5, 2017 at 9:30 AM, davekn4ok via Groups.Io <davekn4ok@...> wrote:
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Re: Quick turn around
Dave What is your serial number? I'll add you to the list. Randy On Wed, Apr 5, 2017 at 9:30 AM, davekn4ok via Groups.Io <davekn4ok@...> wrote:
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Re: I think this is absolutely amazing!
So true. I have a few commercial rigs. It has never been this exciting! There are quite a few interesting hacks and you end up customising a rig?that fits your requirement. Interesting learning experience too - sometimes steep like the Raduino programming - something I have never done before! 73 Sasi VK5SN |
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Re: SD Card
Pavel Milanes Costa
¿ªÔÆÌåÓýHi. Adding cat is (almost) plug and play tech now (if you know how to code), see and it's examples, a working sketch on Cheers. El 05/04/17 a las 04:06, Simon Rumble
escribi¨®:
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Re: CO7WT Si5351A New Sketch
Pavel Milanes Costa
¿ªÔÆÌåÓýHi Dimitri, We use what we have at hand, and 2x16 LCD is (almost) ubiquitous spare part here in Cuba, I plan to add more options like a Nokia LCD (I have) and maybe a TFT/OLED display (I don't have), but all is simply a matter of what we have. I have started to make it LCD or Nokia capable (selection just via a compiler flag), from that point forward the selection/addition of a new display will be easily integrable, anone with a different display (OLED/TFT) can make his own "driver" and plug it to the code (contributions are welcomed, this is free/libre software) 73 and thanks for the interest and kind words about the code. Pavel, CO7WT. El 04/04/17 a las 05:38, Dimitar Pavlov
via Groups.Io escribi¨®:
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Re: 40 meters dead (again)
I was working jt65 last night and made 5 contacts @20 watts 1 was New Zealand. On Wed, Apr 5, 2017 at 8:58 AM, David A Rutledge via Groups.Io <al5m@...> wrote:
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Re: Quick turn around
Randy,
I don't see my call on the list?
Ordered March 17th and delivered the 30th.
Dave KN4OK -----Original Message-----
From: Randy Hall <listk7age@...> To: BITX20 <[email protected]> Sent: Wed, Apr 5, 2017 9:21 am Subject: Re: [BITX20] Quick turn around Hi
Below is my updated delivery list. Thanks to all that have posted their information.
We should start seeing the 4th batch of serial numbers soon.
73
Randy, K7AGE
On Tue, Apr 4, 2017 at 10:19 PM, Sasi Nayar <sasinayar@...> wrote:
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Re: 40 meters dead (again)
¿ªÔÆÌåÓýOr better yet, buy a cheap SDR dongle and find signals that you know are reaching your antenna. And then you have a way to verify your frequency accuracy and a lot of other useful things. After a DMM I think an SDR is about the most useful tool you can have around the low budget ham shack.On 4/5/2017 1:28 AM, Ryan Flowers
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Re: CLAREMORE, OK Hamfest this weekend and my BITX40
After running a small business for some time there is one thing I have learned, no matter how good you are there are going to be people that just simply hate your product. Even the most expensive radios on the market have folks that are just not happy with the product. Its just not a good fit for them. Personally I love my bitx. If it came out of the box working exactly as I wanted I probably would not have as much fun with it. If all the mods I wanted were laid out in a step by step document, same thing, probably not as much fun. I love figuring things out its just my personality and this radio is just what I needed to get me off my butt and have some fun. |
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Re: You can't fix stupid - current range?
If this has already been answered, please just tell me to go back and search again. I have a big rectifier diode across the power input pins with fuses in both lines. I hope to make time this weekend to add a +12 Vdc regulator to the lines feeding the BitX40 board and Raduino assembly and a fused direct line to the PA. My two questions are - how much current should be budgeted for the BitX40 board including the PA (for now I'm assuming 2 A) and how much for the PA alone at 24 Vdc?
Thanks from YAN (yet another noobie) |
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Re: CLAREMORE, OK Hamfest this weekend and my BITX40
Jack Purdum
A lot of this discussion about this rig depends upon your point of view. Andrew has taken a wise approach, in that he knows up front what's involved with the rig. Agreed, many don't, but whose fault is that? My club is an FCC testing site and we give the exams before our meeting every month. Last month was typical, with 13 Tech exams and 2 General. Many are from the university's EE department and their objective is just "to get on the air". Most end up with a 2M HT because they are cheap. When I ran into one who let his license expire, I asked why. His response: "It's no different than my cell phone." Clearly, he never left 2M. The BITX40 provides an avenue to HF for anyone who is on a lawn-mower budget. The BITX40 is a vehicle that allows such people to experience HF at a reasonable cost. When I'm done modifying mine, I plan on suggesting it for a club build. Because we have new members who don't even own a soldering iron yet, many are afraid to tackle building anything. This is why I take the time to write assembly manuals for such projects (e.g., the Forty-9er rig, the antenna analyzer). I understand John Smith's frustration with the directions. I've also seen he follows what goes on here, so perhaps he could write a set of new instructions and post them here and give distribution rights to HF Signals. I think all of us would appreciate that and I think we'd see the volume of posts from new members fall dramatically if he does. Still, it's pretty hard to throw stones at the BITX40. It really does fulfill a hole in the market. It's a perfect solution to my club's Tech disappearance problem. I've been licensed since 1954 and I consider my BITX40 experience to be one of the best I've ever had. I've learned more electronics "stuff" in the past year than everything that came before. Yes, I've shot myself in the foot a few times, but the members of this group, either directly or indirectly, have helped my bind my wounds. It's one of the most useful groups I've ever belonged to. How many of us have our gun loaded, new metal shoes on, and can't wait for the microBITX to hit the market?? Jack, W8TEE From: Andrew Whaley <azwhaley@...> To: [email protected] Sent: Wednesday, April 5, 2017 10:36 AM Subject: Re: [BITX20] CLAREMORE, OK Hamfest this weekend and my BITX40 Just to balance. I'm a new ham, not even licensed yet but gathering my equipment slowly in readiness. I spent ages researching what to get after realising that 2m is pretty dead around here and HF is the way to go. There are actually very few options for a low-cost rig capable of CW (and SSB) which is tuneable i.e. not a single crystal like the various eBay QRP rigs.? So I came to BitX40 and ordered the board and the various other bits and pieces that I needed. Through my own impatience, I've had a rough time with it and had to replace one Arduino and wrestled with a diecast box that was really too small which caused its own problems.? I have to say, though, the basic design is brilliantly simple (and well documented and with open source software), Ashhar's service all the way from India has been exemplary and the encouragement and direct support I've had from other members of this community has been amazing. ? I still have a few issues to sort out on the CW side, but the basic SSB rig worked right out of the box. I had no issues with wiring up that weren't due to my own inexperience or hast.? It's a brilliant bit of kit - like a kind of Raspberry Pi for QRP. Can't wait to get on-air and speak to more of you there. |