Re: Very high clicks after cw wiring
On Thu, June 22, 2017 21:19, John P wrote: That's what I thought, so back to the original issue, with the whole TX-RX
modification (i.e. the transistor) completely removed, when the key is
closed and I press the PTT, it reverts to LSB TX mode, instead of
transmitting in CW mode. Yes that's correct and as designed. So why is this an issue? Why would you want to press PTT and close the key at the same time? Sorry I don't understand. 73 Allard PE1NWL
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Re: Like to test a S-meter and soon an AGC/Tx-monitor for your bitx40?
Where is agc_software.png ?
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Re: uBITX - A reboot of the old BITX
check the contrast preset. does it make the display come back??
- f
On Fri, Jun 23, 2017 at 1:04 AM, Francesca Wine via Groups.Io <francescawine@...> wrote:
My display is now just? bars. I lost? the computer? chip on bitx40. Where can i get another board?
Francesca W7LTG NV
Sent from Hotmail Email App for Android
Thursday, 22 June 2017, 00:07PM -07:00 from Ashhar Farhan farhanbox@...:
it may happen yet. but it is still some time away.
- f On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@...> wrote: I thought that the ubitx was going to be sold as a made radio like the bitx On 23 Jun. 2017 4:18 am, "William Londree" < ventura_bill@...> wrote: That would be Great!
Bill W6SDI
--
I have ?bitx40 ?and completely wired up. get nice hiss when the volume up. display lights up only showing Raduino V1.01. ?frequency never shown, anyone have that problem? ?i think the software is not in the chip.
Francesca W7LTG ? NV?
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Re: uBITX - A reboot of the old BITX
My display is now just? bars. I lost? the computer? chip on bitx40. Where can i get another board?
Francesca W7LTG NV
Sent from Hotmail Email App for Android
Thursday, 22 June 2017, 00:07PM -07:00 from Ashhar Farhan farhanbox@...:
it may happen yet. but it is still some time away.
- f On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@...> wrote: I thought that the ubitx was going to be sold as a made radio like the bitx On 23 Jun. 2017 4:18 am, "William Londree" < ventura_bill@...> wrote: That would be Great!
Bill W6SDI
--
I have ?bitx40 ?and completely wired up. get nice hiss when the volume up. display lights up only showing Raduino V1.01. ?frequency never shown, anyone have that problem? ?i think the software is not in the chip.
Francesca W7LTG ? NV?
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Re: uBITX - A reboot of the old BITX
--
Sent from Hotmail Email App for Android
Thursday, 22 June 2017, 00:07PM -07:00 from Ashhar Farhan farhanbox@...:
toggle quoted message
Show quoted text
it may happen yet. but it is still some time away.
- f On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@...> wrote: I thought that the ubitx was going to be sold as a made radio like the bitx On 23 Jun. 2017 4:18 am, "William Londree" < ventura_bill@...> wrote: That would be Great!
Bill W6SDI
--
I have ?bitx40 ?and completely wired up. get nice hiss when the volume up. display lights up only showing Raduino V1.01. ?frequency never shown, anyone have that problem? ?i think the software is not in the chip.
Francesca W7LTG ? NV?
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Re: uBITX - A reboot of the old BITX
"Here is a screenshot of my simulation. i run it under ubuntu, hence the weird window style."
Doesn't look weird to me... I use Ubuntu, too. :)
--
Darren, W9ZIM
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Re: Very high clicks after cw wiring
On Thu, Jun 22, 2017 at 10:42 am, Allard PE1NWL wrote:
Yes John, you got that right!
The transistor just bypasses the switch (as it's in parallel to the switch).
So the result is the same whether you close the switch or whether you
cause the transistor to conduct. In either case the TX relay will become
activated.
That's what I thought, so back to the original issue, with the whole TX-RX modification (i.e. the transistor) completely removed, when the key is closed and I press the PTT, it reverts to LSB TX mode, instead of transmitting in CW mode. ? -- John - WA2FZW
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Re: uBITX - A reboot of the old BITX
Is that close in spurs, or just harmonics that can be dealt with using LPF's?
?
On Thu, Jun 22, 2017 at 12:14 pm, Ashhar Farhan wrote:
i'd not like a pcb at this time. i am being a little obstinate here. i am still not happy with some spurs on the transmit side. a pcb will not allow changes into the circuit that maybe necessary to make it FCC compliant.
?
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Re: uBITX - A reboot of the old BITX
i'd not like a pcb at this time. i am being a little obstinate here. i am still not happy with some spurs on the transmit side. a pcb will not allow changes into the circuit that maybe necessary to make it FCC compliant.
- f
On Fri, Jun 23, 2017 at 12:40 AM, Allan Jacobsen <allan@...> wrote: Hi Ashhar
Is the schematic available as a download somewhere, it would make it much easier to make the pcb.
Best regards
Allan, OZ1CXP
Den 22/06/2017 kl. 21.07 skrev Ashhar Farhan:
> it may happen yet. but it is still some time away.
>
> - f
>
> On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@... <mailto:vk7hrs@...>> wrote:
>
>? ? ?I thought that the ubitx was going to be sold as a made radio like the bitx
>
>? ? ?On 23 Jun. 2017 4:18 am, "William Londree" <ventura_bill@... <mailto:ventura_bill@...>> wrote:
>
>? ? ? ? ?That would be Great!
>
>? ? ? ? ?Bill W6SDI
>
>
>
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Re: uBITX - A reboot of the old BITX
Hi Ashhar
Is the schematic available as a download somewhere, it would make it much easier to make the pcb.
Best regards
Allan, OZ1CXP
Den 22/06/2017 kl. 21.07 skrev Ashhar Farhan:
toggle quoted message
Show quoted text
it may happen yet. but it is still some time away.
- f
On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@... <mailto:vk7hrs@...>> wrote:
I thought that the ubitx was going to be sold as a made radio like the bitx
On 23 Jun. 2017 4:18 am, "William Londree" <ventura_bill@... <mailto:ventura_bill@...>> wrote:
That would be Great!
Bill W6SDI
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Re: uBITX - A reboot of the old BITX
it may happen yet. but it is still some time away.
- f
On Fri, Jun 23, 2017 at 12:34 AM, Trent Trent <vk7hrs@...> wrote: I thought that the ubitx was going to be sold as a made radio like the bitx
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Re: uBITX - A reboot of the old BITX
That would be Great!
Bill W6SDI
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Re: The $19 DIY DSP audio filter
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Like to test a S-meter and soon an AGC/Tx-monitor for your bitx40?
Hi to all.
Since I have now a [borrowed] real bit40v3_smd + raduino I can
test and tune some things...
I have put together a test sketch based on the Allard's code
version 1.15 (1.15 not 1.15.1) that has an S-meter for the RX
part, I'm testing with the TX part [hardware] and playing
[successfully!] with software controlled AGC...
What you get if you dare to test it:
- Full compatibility with Allard's code.
- Smaller code: you need to download the Si5351mcu lib, see
readme and code.
- Smeter on RX, see the simple hardware mod in the
smeter-mod.png file.
- TX power meter, is the same for the Smeter but need a hardware
mod that is on test at the bench.
- Software support for AGC (I'm tunning the hardware/software
parameters, so no schematic for now: soon...)
All this mods can be incorporated on Allard's code once they are
tested and requested.
Do you dare? :
73 de Pavel CO7WT.
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Re: Very high clicks after cw wiring
On Thu, June 22, 2017 17:22, John P wrote: Is it not true that what the BitX board??sees at the PTT connector is the
same regardless of whether I press the PTT switch or cause the transistor
to conduct via the connection from D7? This is where I'm confused. Yes John, you got that right! The transistor just bypasses the switch (as it's in parallel to the switch). So the result is the same whether you close the switch or whether you cause the transistor to conduct. In either case the TX relay will become activated. But what I wanted to point out is that normally, when you are in receive mode, the transistor is NOT conducting. So in that condition, when you press the switch, you will activate the relay and via the PTTsense line the Raduino will 'know' that has to switch the mode to SSB. In your specific situation however (due to the issue you have with the transistor) the transistor remains conducting all the time. So the relay is constantly activated, and pressing the PTT switch will not make any difference. 73 Allard PE1NWL
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Re: The $19 DIY DSP audio filter
 I don't know if you see the vid
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Re: The $19 DIY DSP audio filter
Looks like it works!
It has to be connected to an amplified speaker though
i will figure out how to fit it to a normal rig speaker
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Re: uBITX - A reboot of the old BITX
We have to first characterize the crystal. that's measure their motional inductance and capacitance. i do this using the G3URR's method. it is a very simple two transistor oscillator. after that, i use the same oscillator to measure the frequency of each crystal and sort them into bins. thanks to the bitx40 production, at least for 12 mhz crystals, i don't have to match them. they are kept prematched in separate pouches. i just dip into one!
- f
On Thu, Jun 22, 2017 at 10:00 PM, DJ2AG <ya_duck@...> wrote: Aashhar, which method are you using to select matching crystals?
73 de Armin, DJ2AG
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Re: uBITX - A reboot of the old BITX
Aashhar, which method are you using to select matching crystals?
73 de Armin, DJ2AG
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Allard PE1NWL
DH2LAB
W9ZIM