You may need this driver:??
Might want to see if other BITX's agree with this
It's in Chinese but I just down loaded a while back and fixed my problem.??
I find cheap China Nano lack this driver.. I have 7 ultra.? My old Vista machine need this driver as well. 73
On Mon, Nov 6, 2017 at 6:59 PM, 1practical.man <1practical.man@...> wrote: Allard
Will your Raduino version 2 be based on the ATMega 2560 or similar platform?
Just curious about how that is evolving.
BREAK.
I still haven't figured out how to load your code in the original chip. My ancient windows 7 machine won't recognize the chip and allow a write. Thought it worked initially because the LED on the raduino came on, but no code on chip.
I will keep plugging away trying to sort it properly.
This is all new to me. I haven't tried programming since I did FORTRAN in school.
Thanks for your efforts and education that you provide on this list. It's really great stuff
John
KN4GUY
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Re: BITX40 build for SOTA/POTA operation
Thanks!
toggle quoted message
Show quoted text
On Nov 6, 2017, at 20:16, Vince Vielhaber <vev@...> wrote:
It's called a Pelican Case. Google it and you'll find several suppliers, even ebay. I got one from BHPhoto.
Vince.
On 11/06/2017 08:01 PM, 1practical.man wrote:
That's a nice box. Can you shared what make and model it is? Perhaps a
vendor?
John
KN4GUY
On Nov 6, 2017, at 19:55, peatmoss - ki6ssi <pete@...
<mailto:pete@...>> wrote:
Yoyo dipole is good but it takes more work to put up. Lately I've been
using an EFHW, its just a small 49:1 auto transformer and 67 feet of
wire for 40-10m no tuner, 15 feet of coax. Sling one end up a tree and
have the transformer near the ground. So far its the best portable
antenna I have tried. Here is a good Facebook group for all the
details
I also put the bitx in a waterproof box.<P_20170506_175244.jpg> --
Michigan VHF Corp.
|
Re: BITX40 build for SOTA/POTA operation
It's called a Pelican Case. Google it and you'll find several suppliers, even ebay. I got one from BHPhoto.
Vince.
toggle quoted message
Show quoted text
On 11/06/2017 08:01 PM, 1practical.man wrote: That's a nice box. Can you shared what make and model it is? Perhaps a
vendor?
John
KN4GUY
On Nov 6, 2017, at 19:55, peatmoss - ki6ssi <pete@...
<mailto:pete@...>> wrote:
Yoyo dipole is good but it takes more work to put up. Lately I've been
using an EFHW, its just a small 49:1 auto transformer and 67 feet of
wire for 40-10m no tuner, 15 feet of coax. Sling one end up a tree and
have the transformer near the ground. So far its the best portable
antenna I have tried. Here is a good Facebook group for all the
details
I also put the bitx in a waterproof box.<P_20170506_175244.jpg>
--
Michigan VHF Corp.
|
Re: BITX40 build for SOTA/POTA operation
Well that is fine,?
sounds interesting.? What if we just want to see it, WITHOUT
FaceButt?
I have a random wire
up, kinda like a portable would be.
Mike, WA6ISP
On 11/6/2017 4:55 PM, peatmoss - ki6ssi
wrote:
Yoyo dipole is good
but it takes more work to put up. Lately I've been using an EFHW,
its just a small 49:1 auto transformer and 67 feet of wire for
40-10m no tuner, 15 feet of coax. Sling one end up a tree and have
the transformer near the ground. So far its the best portable
antenna I have tried. Here is a good Facebook group for all the
details?
I also put the bitx in a waterproof box.
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
|
Re: BITX40 build for SOTA/POTA operation
That's a nice box. Can you shared what make and model it is? ?Perhaps a vendor?
John KN4GUY?
toggle quoted message
Show quoted text
On Nov 6, 2017, at 19:55, peatmoss - ki6ssi < pete@...> wrote: Yoyo dipole is good but it takes more work to put up. Lately I've been using an EFHW, its just a small 49:1 auto transformer and 67 feet of wire for 40-10m no tuner, 15 feet of coax. Sling one end up a tree and have the transformer near the ground. So far its the best portable antenna I have tried. Here is a good Facebook group for all the details? I also put the bitx in a waterproof box.<P_20170506_175244.jpg>
|
Allard
Will your Raduino version 2 be based on the ATMega 2560 or similar platform?
Just curious about how that is evolving.
BREAK.
I still haven't figured out how to load your code in the original chip. My ancient windows 7 machine won't recognize the chip and allow a write. Thought it worked initially because the LED on the raduino came on, but no code on chip.
I will keep plugging away trying to sort it properly.
This is all new to me. I haven't tried programming since I did FORTRAN in school.
Thanks for your efforts and education that you provide on this list. It's really great stuff
John
KN4GUY
|
Re: BITX40 build for SOTA/POTA operation
Yoyo dipole is good but it takes more work to put up. Lately I've been using an EFHW, its just a small 49:1 auto transformer and 67 feet of wire for 40-10m no tuner, 15 feet of coax. Sling one end up a tree and have the transformer near the ground. So far its the best portable antenna I have tried. Here is a good Facebook group for all the details? I also put the bitx in a waterproof box. 
|
Re: raduino v1.27 released (improved suppression of spurious burst)
Hmm, maybe possible. But this would take extra program space and we're
already tight. I want to implement digital BFO first (v2) which also needs
some space.
If we would have 4 VFO's then we also need to consider how the SPLIT
function should work.
73 Allard PE1NWL
toggle quoted message
Show quoted text
On Tue, November 7, 2017 01:18, radiomanjwt wrote: Hi Allard,Would it be possible to have, say, 4 vfos instead of the 2? It
would make it a lot easier when switching bands to have 80m on one vfo
(which i have now) and 40 on the next, 30 on number vfo3 and 20 on
vfo4.??Cheers John de VK4JWT??
Sent from my SAMSUNG Galaxy S7 edge on the Telstra Mobile Network
-------- Original message --------From: Allard PE1NWL <pe1nwl@...>
Date: 6/11/17 7:11 pm (GMT+10:00) To: [email protected] Subject: Re:
[BITX20] raduino v1.27 released (improved suppression of spurious burst)
Hi,
I discovered a bug that the carrier burst is still not properly suppressed
in CW-SPLIT mode. Normal (non-SPLIT) mode works OK.
I'll correct that soon.
73 Allard PE1NWL
|
Re: raduino v1.27 released (improved suppression of spurious burst)
Hi Allard, Would it be possible to have, say, 4 vfos instead of the 2? It would make it a lot easier when switching bands to have 80m on one vfo (which i have now) and 40 on the next, 30 on number vfo3 and 20 on vfo4.? Cheers John de VK4JWT?
Sent from my SAMSUNG Galaxy S7 edge on the Telstra Mobile Network
toggle quoted message
Show quoted text
-------- Original message -------- From: Allard PE1NWL <pe1nwl@...> Date: 6/11/17 7:11 pm (GMT+10:00) Subject: Re: [BITX20] raduino v1.27 released (improved suppression of spurious burst)
Hi, I discovered a bug that the carrier burst is still not properly suppressed in CW-SPLIT mode. Normal (non-SPLIT) mode works OK. I'll correct that soon. 73 Allard PE1NWL
|
Hi Joe, I have not tried re modelling the lpf yet, but will do when i get more time. Btw the software is called rfsim, and is free if you wanto have a go. Cheers John de VK4JWT?
Sent from my SAMSUNG Galaxy S7 edge on the Telstra Mobile Network
toggle quoted message
Show quoted text
-------- Original message -------- From: Joe <joeman2116@...> Date: 7/11/17 7:56 am (GMT+10:00) Subject: Re: [BITX20] 80 Meters on BITX40?
Thanks for info.
Wondering if you had a similar solution for the lpf?
Joe
VE1BWV
On Mon, Nov 6, 2017, 5:28 PM radiomanjwt < jwtitmus@...> wrote: Hi all,
I have done some experimenting with RFSIM, modelling the existing BPF, and analysing it. I have come up with an easy way to have some filtering, without just shorting out the BPF.
If you put a 470pf from the antenna input to the junction of L3 and C6, you will get a reasonable BPF at 80m.
Change it to a 6.3uh inductor , and you will get 30m. A 2.2uh will give you 20m.
These are not optimal as in the original nice 40m BPF, but an easy way to get at least some filtering from BCB and higher up. See attached pics.
P.S I have tried it, and it works great.!
Cheers
John de VK4KWT
|
toggle quoted message
Show quoted text
Hi all,
I have done some experimenting with RFSIM, modelling the existing BPF, and analysing it. I have come up with an easy way to have some filtering, without just shorting out the BPF.
If you put a 470pf from the antenna input to the junction of L3 and C6, you will get a reasonable BPF at 80m.
Change it to a 6.3uh inductor , and you will get 30m. A 2.2uh will give you 20m.
These are not optimal as in the original nice 40m BPF, but an easy way to get at least some filtering from BCB and higher up. See attached pics.
P.S I have tried it, and it works great.!
Cheers
John de VK4KWT
|
Re: Function button on A3 only working intermittently
I loaded? v1.27 and when I tuned the the display would not respond well. reloaded V1.27 works as advertised.? Sooo i suppose I had an upload for some reason did not load correctly.? you could try a reload first.?
Also check the orange pin where it enters P1 is making good contact along with the ground. Check the solder side of P1 for a good connection.
Re-seat P3.
?maybe with Fun Switch depressed "ON" wiggle the orange wire (just be careful where the Raduino is relative to other connections/cicuits) and see if things change as you view the LCD. 73
|
Thanks for info.
Wondering if you had a similar solution for the lpf?
Joe
VE1BWV
On Mon, Nov 6, 2017, 5:28 PM radiomanjwt < jwtitmus@...> wrote: Hi all,
I have done some experimenting with RFSIM, modelling the existing BPF, and analysing it. I have come up with an easy way to have some filtering, without just shorting out the BPF.
If you put a 470pf from the antenna input to the junction of L3 and C6, you will get a reasonable BPF at 80m.
Change it to a 6.3uh inductor , and you will get 30m. A 2.2uh will give you 20m.
These are not optimal as in the original nice 40m BPF, but an easy way to get at least some filtering from BCB and higher up. See attached pics.
P.S I have tried it, and it works great.!
Cheers
John de VK4KWT
|
Re: BITX40 build for SOTA/POTA operation
I'm a greenhorn as well so take what I say with a small siberian salt mine, but I seem to spend most of my time on 40m anyways. ?You will definitely lose some capability being single band, but you will also be very power efficient, and with a few modifications, you can get a full 20W out, much more than most SOTA rigs. ?It seems a workable solution to me.? There are also mods to multi-band, but those are beyond me.
I do think a $300 antenna is overkill. ?You are running a single band, so I would cut a simple inverted V dipole, or maybe an end fed half wave with a Sotabeams pico tuner or similar.
I would start with the dipole. ?They say that as a beginner it's easier to make an antenna worse than a dipole, but hard to make one better.
I made a homemade version of the YoYoTenna out of two $4 Coghlan's Laundry reels. ?The reels are a bit hefty, but it packs up really nice and you can adjust it for multiple bands if I want - I cut it for 40m at full extension, and as long as I use it with the BitX40, I can just roll it out all the way to stake it. ?If I bring a different radio, I reel it in to spots I marked with a sharpie for whatever band I want to use.
|
Hi all,
I have done some experimenting with RFSIM, modelling the existing BPF, and analysing it. I have come up with an easy way to have some filtering, without just shorting out the BPF.
If you put a 470pf from the antenna input to the junction of L3 and C6, you will get a reasonable BPF at 80m.
Change it to a 6.3uh inductor , and you will get 30m. A 2.2uh will give you 20m.
These are not optimal as in the original nice 40m BPF, but an easy way to get at least some filtering from BCB and higher up. See attached pics.
P.S I have tried it, and it works great.!
Cheers
John de VK4KWT
|
Function button on A3 only working intermittently
Hi all,
Extreme newbie here. I recently received a BITX40 and installed the pavelmc sketch from??.? I added a function button on A3 and GND (orange and yellow wires respectively from the Raduino 8-pin harness). Usually when I first turn the radio on the button will work a few times but eventually the button stops responding until I unplug everything and let it sit for a while, then on next power up it will work a few times again.
I checked the continuity from A3 to GND while pressing & releasing the button and it seems to be working as expected.? Also the same thing happens if I take the button out and just short A3 to GND.
I'm not sure what to look at next.? Keeping in mind I'm a novice at understanding circuits, my only guess is that maybe the internal pull-up resistor for A3 isn't getting turned on or isn't working correctly and allowing A3 to float instead of being pulled high?? However the sketch I'm using does appear to enable the internal pull-up for this pin, so I'm not sure if that's it or what else it could be.
Any other suggestions? Thanks.
Jason - W4JAL
|
Re: Another protection diode is required
I know it sounds simple, bit like me, but can someone detail a diagram for me. As I have fitted a socket for programming the Raduino, without removing any connectors and dont fancy frying anything, let alone letting the magic smoke out.
I did notice when I updated to v1.26, I could still hear stations. Although it was the 1st time I had the all the leads connected.
Phil-G7BZD??
On Mon, Nov 6, 2017 at 2:56 PM, Raj vu2zap <rajendrakumargg@...> wrote:
The Nano board has a diode that prevents your PC from getting
fried.
After a raduino fry up! there was a short that smoked that diode in the
nano and I pulled the plug in time
and that got me thinking and came up with a solution.
Raj
At 06-11-2017, you wrote:
I have that diode on all my RaduinoX
boards.?? The other thing, I have left the 12V on my test fixture on
many times while programming with the USB (by Mistake).?
|
Re: BITX40 build for SOTA/POTA operation
Joe,
?? I have taken mine to a few places had a great time with it cw/ssb/digi. I did put mine in a metal case and use a pelican for travel it fits pretty tight and has some added weight but works out pretty good. Phone will be a bit tough for the next few years but is more than doable.
I use either my homebrew slight inverted V 40m dipole or I have used in the last few trips out. I do plan to put my bitx on 40m/20m but is still a work in progress.
Below I am at Mackinac Island last summer didn't get much but prop that day was pretty rough still was a great time and awesome view.
?
73
?? Happy building
David
??? N8DAH
?
?
?
|
Re: BITX QSO Night, Sunday, November 5, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere
Mike, K8MGB and myself, KO8S, both in Warren, MI, were on 7.277 just before 7:00p local time for about 1 hour and heard no one.? de Karl, KO8S
On Sunday, November 5, 2017 11:10 PM, Vince Vielhaber <vev@...> wrote:
I tuned in late, but there was too much noise.? I was using the FT-101
and the noise floor was about an S7 or S8.
Vince.
On 11/05/2017 10:54 PM, KN4AAG Kevin Estep wrote:
> Only made one contact. NX2U, Michael, in TN.
>
> Heard a few, very light, but couldn't make out the details.
>
> Kevin - NC
> KN4AAG
>
--
? Michigan VHF Corp.? ?
? ? ? ? ? ? ? ? ? ? ? ? ?
|
On Nov 5, 2017, at 11:35 AM, Larry Smith < 815cpu@...> wrote:
Try Ebay number:? ?? 201853209420201853209420 eBay item number: 201853209420
|
Allard PE1NWL
radiomanjwt
N8DAH