Re: AGC Pre-Oders are in and built!
Great work!
I have a question, not having followed this as closely as might be ideal.? The CEC firmware allows for making an S meter work via a feed to A7 on the nano.? Could it be fed from one of the lines on this???
Thanks!
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Re: Push button not functioning
Actually credit Martin with the save. I merely get an assist, maybe. Enjoy exploring the new rig.
Curt
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Re: Push button not functioning
Thanks Curt
That was the problem, the red wire was crimped with the
insulation making no wire contact in the digital connector.
You made my day -Thanks again
Bill K9JUI
On 3/5/2019 12:04 AM, Curt via
Groups.Io wrote:
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Bill
After pushing button notice rig will no longer transmit.
After pushing button, turn the encoder to see various menu
selections. To choose the one displayed,? press the button again.?
you pretty much have to try each one to understand what it does.
Curt
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Re: AGC Pre-Oders are in and built!
Please put me on the list for 3. Thank you Bill Ng1p
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On Mar 4, 2019, at 10:09 PM, N8DAH < Dherron@...> wrote: The AGC's are in and looking good. I need to finish up packing and shipping the pre-orders and then we will open the gates for the rest of them.
Install and switch wire up instructions will be included with the 1st 40, sales after that will have a download on the kit-projects site.
To those that did pre-order thank you for your support and patience, things got a little hectic in the last few weeks.
73
?
<20190304_220255.jpg>
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David
?N8DAH
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Re: change keyer type on nextion
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Oops ! And many thanks to Alisson too. 73'Olivier
Le?lun. 4 mars 2019 ¨¤?22:23, ajparent1/KB1GMX < kb1gmx@...> a ¨¦crit?: if its the common 100prr-6 (6 terminals on the back):
the A and B termianls are transistors to ground and are used.
Ground is ground (0V) termial
Black and brown to the A and B terminals? (reverse if the rotation direction is backward)
5V from raduino 5V reg to the leds (Vcc? terminal)
One note I used V4.3 code with my mods and it worked well.? Some codes for the
Raduino are slow and if you rotate the encoder quickly it will not keep up.
Allison
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Many thanks Ted. (with the colors, it's more simple to understand). Yes my rotary encoder put out 5v pulses on an A and a B channel when I spin the dial. I will try this tomorrow. 73' Olivier.
Oliver,
Does your rotary encoder put out 5v pulses on an A and a B channel when you spin the dial?
If yours is like the industrial service rotary encoder I plan to install and puts out 5-volt pulses from an A and B terminal, then it's a bit different from the stock encoder.? The stock encoder basically grounds the black (A) and brown (B) lines in "pulse-like" fashion while turning the knob. What we have to do is convert our encoders from a pulsed-output of 5v signals, to perform the pulsed-grounding of live signal lines delivered to it from the radio.
I might suggest taking the brown wire from the Raduino plug and connect it to the Source leg of a 2N7000. Connect the Drain to earth (yellow). The leg of the transistor that remains, the Gate, connects to one output or the other of your new encoder. Now, repeat this transistor make-up for the Raduino's black wire using a second 2N7000.? Connect that equation up to the other output terminal of your encoder.? I don't know if A=A and B=B on your encoder compared to the original, though you'll find out.
Doing this, your encoder's 5v pulses will "instruct" these two FET transistors to momentarily short out the original Raduino signal lines to earth in the same way that the original encoder device momentarily or repeatedly shorts out the black and brown for tuning or for function-selections. In other words, we've reversed the new encoder's output logic to match the old one's logic so that your uBitx sees what it expects to see [and does what it expects it to do].
If tuning goes backward, reverse the "B" and the "A" wires.?And, obviously, remember to? install a separate momentary push button between the red and yellow wires before you end up needing that for radio operating functions in the future
73,
Ted K3RTA
On Mon, Mar 4, 2019 at 3:50, Olivier Grand Hello All I have one (5 volt) of these but I don't know how to wire it on my uBitx v5 please help ! Many thanks. 73' Olivier Le?sam. 2 mars 2019 ¨¤?22:15, ajparent1/KB1GMX < kb1gmx@...> a ¨¦crit?: I have two of those and its 5v for the leds and it works well.
Its a lot more durable than the usual cheapie encoder but needs a lot of
panel area making it tough for some cases.
Allison
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Hi I just did this to keep the 7805? a bit happy tnx 73 de Pop VU2POP ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Dexter N Muir
Sent: Friday, March 01, 2019 4:08 AM
To: [email protected]
Subject: Re: [BITX20] Bitix 40 5 Pin #bitx40 ? Regulator sticking out? Remedy: solder-blob all 3 pins, remove IC, suck/wick/poke (gently!) holes clean and re-insert IC on other (really the 'top') side - keeping original orientation. There's room (at least there is on my old one) to tilt it over inside the board-profile... a heatsink might not fit though :( ...
SI5351 on main board? Good idea, if it could fit - maybe an (Adruino-style) shield or (Raspberry-Pi) HAT? Keeping wiring just control: near-DC ... :)
73 de ZL2DEX
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It looks likely that the Si5351 output is not connected to the main board. can you check it can transmit?
- f
I just received a Bitx40 and I am needing some help.? When I first put it together it worked fine then, the display stopped working. Looking at the forum a software update looked to be a good fix and it worked. The display is now working but the radio is not. It has a loud ticking (like the tuning?clicks but much louder and continuous) and the receiver?is nothing but noise. It will not receive?any signals. When I unplug the Raduino?the ticking stops. Any Ideas on how to fix this?
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Re: Push button not functioning
Bill
After pushing button notice rig will no longer transmit.
After pushing button, turn the encoder to see various menu selections. To choose the one displayed,? press the button again.? you pretty much have to try each one to understand what it does.
Curt
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Re: AGC Pre-Oders are in and built!
Thank you. ?Will look forward to the board.?
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On Mar 4, 2019, at 10:09 PM, N8DAH < Dherron@...> wrote: The AGC's are in and looking good. I need to finish up packing and shipping the pre-orders and then we will open the gates for the rest of them.
Install and switch wire up instructions will be included with the 1st 40, sales after that will have a download on the kit-projects site.
To those that did pre-order thank you for your support and patience, things got a little hectic in the last few weeks.
73
?
<20190304_220255.jpg>
--
David
?N8DAH
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Re: DC blocking cap between souncard and ubitc mic input.
#ft8
#ubitx
There is some discussion about a transformer at the mic input affecting the output. It works on two of my v3 rigs. There is a blocking cap c60, a 1uF on the input of the q6 the mic preamp. I would imagine that r60 could be disconnected without issue but I have not done this.
73
Dave
k0mbt
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Re: Push button not functioning
If you are sure that the button is working OK and that the wires to it are correct, be sure to check the connections at the other end -- correct pins, not loose, etc. I read somewhere that some of the connectors fitted only loosely. (I am still waiting for my uBitX to arrive.)
Good luck and 73,
... Martin VE3OAT
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AGC Pre-Oders are in and built!
The AGC's are in and looking good. I need to finish up packing and shipping the pre-orders and then we will open the gates for the rest of them.
Install and switch wire up instructions will be included with the 1st 40, sales after that will have a download on the kit-projects site.
To those that did pre-order thank you for your support and patience, things got a little hectic in the last few weeks.
73
?
--
David
?N8DAH
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Re: DC blocking cap between souncard and ubitc mic input.
#ft8
#ubitx
Folks, this depends on what impedance it is feeding into. ?If it¡¯s feeding into a very high impedance say 100,000 ohms, then it ?will be relatively flat
?
Likely the input impedance is a little lower than that so I preferred to use a one microfarad electrolytic, with the plus side towards the DC bias voltage of the rig.
The transformer output is a dead short at DC, so that side is 0 V. ?
Gordon
On Mar 5, 2019, at 00:22, Joe Puma < kd2nfc@...> wrote:
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okay got it, so it removes some of the lower boomieness of the audio spectrum since it wouldn¡¯t be heard much anyway and allow more of the mid and highs to get through. my first impression was a audio filter as I am familiar with it use in that
application but its good to know its blocking DC as well. I spent a few minutes reading this very basic understanding.?
Joe
Primarily it does block DC, however it attenuates somewhat more the lower frequencies (as 300hz) than the higher (3khz).
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excellent...thanks. Working on expanding v3 nextion gui to 3.5" and want to add a tune function.
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If your using the KD8CEC firmware you also have cat control for keying the rig for digimodes via the serial interface.
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Tim Keller - KE2GKB
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The key is hooked up to an Arduino input pin, nothing else sees it.
Your software can ignore that pin and transmit CW whenever it wishes.
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On Mon, Mar 4, 2019 at 04:53 PM, Sam Tedesco wrote:
Before I start digging around, can anyone confirm if the rig can be keyed via software or do I have to physically short at key? Thanks
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In addition to being simpler than adding a clean audio oscillator, and cleaner in that it avoids
issues with residual carrier and opposite sideband, this scheme will allow adjusting
power out by choosing an operating point on the shoulder of the 45mhz crystal filter passband.
Controlling SSB power out in this way was first proposed by VK2ETA and is now in the KD8CEC firmware.
Involves no additional hardware.? With the above change, this could now also work for CW transmit.
See posts 46235, 46241, 50215, 50265, 50279 if curious about this method of adjusting power out.
Jerry, KE7ER
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On Mon, Mar 4, 2019 at 10:14 AM, Jerry Gaffke wrote:
Assuming 16dB gain in the 45mhz amp and a 45mhz signal into the D1,D2 mixer
that is at least 10db down from a 7dBm CLK2 local oscillator,
the 45mhz square wave coming out of the D3,D4 mixer should be? ?7dBm-10dB-16dB = -19dBm.
Perhaps 10dB less, as CLK2 is nowhere near 7dBm.
If we overload the 45mhz signal port going into D1,D2, we start generating harmonics again.
The D3,D4 mixer would now be getting unbalanced during CW key down by moving R104,R105
over from where they have been at D1,D2.
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On Mon, Mar 4, 2019 at 09:28 AM, Jerry Gaffke wrote:
One possibility for CW transmit would be to inject a low level keyed 45mhz square wave at CLK1,
the 45mhz crystal filter will turn that into a sine wave.
CLK2 can remain a square wave at Transmit_Freq + 45mhz, same as during SSB transmit,
the D1,D2 mixer will generate a sine wave for the power amp at the Transmit_Freq.
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Hi everyone,
Before I start digging around, can anyone confirm if the rig can be keyed via software or do I have to physically short at key? Thanks
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Vic WA4THR
Olivier Grand
_Dave_ AD0B
N8DAH