Re: Radrino for the bitx40 - Spare needed
Thank You
I will look up the correct address and send an email
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Hello Scott,
happy your uBitx finally started with KD8CEC software ! He actually made a GREAT job to bring new features and ease of use.
Good luck for your next display build :)
73
--
Laurent F5FIE.
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Re: How to connect a TX-RX LED to the BITX40 ?
This works perfectly as a rx/tx indicator using a bi-colour (red/green) led.
In the uBITX case,the led is for me too bright so I have increased the value of the ?series resistors to suit. Mine are 1.8K,personal choice,mileage may vary.
?
73
?
Ian
M0IDR
?
Sent from for Windows 10
?
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This is what I would do...??? At least for the uBITX,
Don't have the schematic for the '40.
Maybe similar?
The T/R relay is at the lower left of the uBITX schematic.
680 ohms will yield ~17 ma for the LED,? 1000 ohms for ~12 ma.?? ...etc.
LED addition in red.
On 10/17/2018 0:06, Andy Sagoya via Groups.Io wrote:
Hello,
can anyone help how i must connect a RX/TX LED to the BITX40 ?
I am new to this "branch" so a little bit of help would be fine
73
Armin
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Re: Radrino for the bitx40 - Spare needed
Typo : doesnt look right Sent by my iPhone
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On 17-Oct-2018, at 13:09, Raj vu2zap < rajendrakumargg@...> wrote: Farhan, email does not right ? Sent by my iPhone hfsignals sells them at $25 dollars. write to them at hfsigansl@...
- f On Wed, Oct 17, 2018 at 11:54 AM Gary.ingle via Groups.Io <Gary.ingle= [email protected]> wrote: Hi Bill
I reconnected it incorrectly, in reverse as I was holding it upsidedown.
This must have put power on the wrong pins.
Now it wont work.
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Re: Radrino for the bitx40 - Spare needed
Farhan, email does not right ? Sent by my iPhone
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On 17-Oct-2018, at 12:59, Ashhar Farhan < farhanbox@...> wrote: hfsignals sells them at $25 dollars. write to them at hfsigansl@...
- f On Wed, Oct 17, 2018 at 11:54 AM Gary.ingle via Groups.Io <Gary.ingle= [email protected]> wrote: Hi Bill
I reconnected it incorrectly, in reverse as I was holding it upsidedown.
This must have put power on the wrong pins.
Now it wont work.
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Re: Radrino for the bitx40 - Spare needed
hfsignals sells them at $25 dollars. write to them at hfsigansl@...
- f
On Wed, Oct 17, 2018 at 11:54 AM Gary.ingle via Groups.Io <Gary.ingle= [email protected]> wrote: Hi Bill
I reconnected it incorrectly, in reverse as I was holding it upsidedown.
This must have put power on the wrong pins.
Now it wont work.
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Re: Radrino for the bitx40 - Spare needed
Hi Bill
I reconnected it incorrectly, in reverse as I was holding it upsidedown.
This must have put power on the wrong pins.
Now it wont work.
|
I would like to ask the size of the can (I assume it is a quart),
the brand of mineral oil you used, and sources for both. I did not
see that information in the article/webpage. I haven't had any
dealings with mineral oil and would appreciate knowing of some
good for 100 Watts of RF.
I agree, build-it projects are good! The more, the better!
73, Donald, KB5PWL
On 10/16/2018 10:32 PM, Jack Purdum via
Groups.Io wrote:
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Thanks, Guy, you note is appreciated. We plan to keep
badgering editors to have more construction projects, as we
think there are a fairly significant number of us out here who
really do enjoy building "stuff"!
Again, thanks!
Jack, W8TEE
?
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Thanks, Guy, you note is appreciated. We plan to keep badgering editors to have more construction projects, as we think there are a fairly significant number of us out here who really do enjoy building "stuff"!
Again, thanks!
Jack, W8TEE
On Tuesday, October 16, 2018, 7:13:25 PM EDT, Guy WB7SZI <sgbridge@...> wrote:
Just wanted to say congratulations to you & Al on the great article and project in the Nov. QST!
73,
Guy WB7SZI?
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Hello Raj, ? I have ver 4 of the uBITX board. Adjusting the BFO frequency a bit brought the carrier down to below -40dBS so I am good to go there. However, I still have this semi-distorted whisper of my voice coming out of the speaker when I transmit. It happens on all bands but is most notable at 80 and 40 meters. A picture of the filter board as connected is attached. This issue doesn¡¯t appear to negatively effect the audio of my transmitted signal. I am getting good audio reports. ? Previous to this mod I had installed just the 45 mhz crystal filter ?to address the spurs issue and didn¡¯t notice any audio in the speaker when I was transmitting. ? Tomorrow I am going to pull the filter board and install just the crystal filter again to see what happens ? Ripley ? Sent from for Windows 10 ?
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From: Raj vu2zapSent: Monday, October 15, 2018 11:59 PM To: [email protected]Subject: Re: [BITX20] Simple spur fix ? A close up sharp photo will help to check. ? V3 or V4 ? ? Raj ? At 16/10/2018, you wrote: >Hello All, > >I just finished implementing the 45 Mhz crystal filter fix with the 7:2 impedance matching transformer on the output of the crystal. Now I am hearing myself in the speaker when I transmit and I am seeing the carrier wave on the SA when I push the PTT on the mic. > >I not sure why the crystal filter mod would be related to these two issues. Anyone experience anything similar? > >Ripley ? ? ? ?
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Re: How to connect a TX-RX LED to the BITX40 ?
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Re: Harmonics and Relay Replacement
I suppose that the prescribed relay was 23105 5403 A201. i see that your relay has 5303 instead. was it a typo? regards
It's very difficult (impossible) to do anything inside the relay. Those 47nF capacitors from both ends of the coil to the nearest ground definitely help reduce the coupling with ALL the relays tried so far. I believe Arv suggested doing that.
I'm at a loss for the proper way to test coupling through the relay from one side to the other and/or through the N/O contact.
The AXICOM spec says the RF isolation at 100MHz is -39dB.
73 Kees K5BCQ
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Re: How to connect a TX-RX LED to the BITX40 ?
Separate LEDs? Each in series with a resistor from TX+ or RX+ to 0V (1k resistors a good start, but adjust for preferred brightness).
Single bi-colour LED? Given common-cathode, cathode to 0V, otherwise same.
73 de ZL2DEX
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Re: How to connect a TX-RX LED to the BITX40 ?
This is what I would do...??? At least
for the uBITX, Don't have the schematic for the '40.
Maybe similar?
The T/R relay is at the lower left of the uBITX schematic.
680 ohms will yield ~17 ma for the LED,? 1000 ohms for ~12 ma.??
...etc.
LED addition in red.
On 10/17/2018 0:06, Andy Sagoya via Groups.Io wrote:
Hello,
can anyone help how i must connect a RX/TX LED to the BITX40 ?
I am new to this "branch" so a little bit of help would be fine
73
Armin
_._,_._,_
--
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Re: How to connect a TX-RX LED to the BITX40 ?
While I¡¯m sure there¡¯re better ways, I¡¯d connect the RX LED to your AGC circuit and the TX to the Mic PTT line. Now, would someone care to explain why these are inappropriate? I¡¯m new here too.
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On Oct 16, 2018, at 17:06, Andy Sagoya via Groups.Io <asr61@...> wrote:
Hello,
can anyone help how i must connect a RX/TX LED to the BITX40 ?
I am new to this "branch" so a little bit of help would be fine
|
How to connect a TX-RX LED to the BITX40 ?
Hello,
can anyone help how i must connect a RX/TX LED to the BITX40 ?
I am new to this "branch" so a little bit of help would be fine
73
Armin
|
Just wanted to say congratulations to you & Al on the great article and project in the Nov. QST!
73,
Guy WB7SZI?
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Re: uBITX40 : audio is meowing and not understandable.
After a brief encounter of grounding the +5v I got to replace the nano.?
To get the old one off I used a small dykes and nibbled the board away from the pins. Once the board came off I desoldered the pins individually.
I too put in a socket but had to turn it around? and replace the nano with a nano that did not have presoldered pins. I don't think I will need to replace the nano again but having the socket gives peace of mind.
------------
That said It sounds like the bfo is off frequency. I have the Allard firmware in my bitx40 and it is a simple menu selection to adjust the bfo. After I installed the Allard firmware the bfo was off quite a bit.
When I hear Italians speak I can't understand them. Although I don't think the voices are quite cat like.?
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Re: Radrino for the bitx40 - Spare needed
Mike, WA8ISP, also sold clones. He had them both in kit form and prebuilt, but I haven't seen him here lately unless he's just lost in the noise.
Vince.
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On 10/16/2018 12:30 PM, Jim Sheldon wrote: Yeah, but he'll have to build it - I don't sell them ready made, only in
kit form. See the TSW website - www.w0eb.com <>
Jim Sheldon, W0EB
------ Original Message ------
From: "Jim Tibbits" <ab7vf1@... <mailto:ab7vf1@...>>
To: [email protected] <mailto:[email protected]>
Sent: 10/16/2018 7:24:52 PM
Subject: Re: [BITX20] Radrino for the bitx40 - Spare needed
Jim Sheldon on the list has "Raduino Clone" ...Got one and works just
like original ..www.w0eb.com <>
Jim
On Tue, Oct 16, 2018 at 6:56 AM Gary.ingle via Groups.Io
<Gary.ingle@... <mailto:[email protected]>> wrote:
I have sucessfully managed to "Blow" the radrino by incorrectly
wiring it when transfering to a new enclosure.
Where can I get or order a spare one that is already programmed
with the correct software ?
--
K8ZW
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Re: Harmonics and Relay Replacement
It's very difficult (impossible) to do anything inside the relay. Those 47nF capacitors from both ends of the coil to the nearest ground definitely help reduce the coupling with ALL the relays tried so far. I believe Arv suggested doing that.
I'm at a loss for the proper way to test coupling through the relay from one side to the other and/or through the N/O contact.
The AXICOM spec says the RF isolation at 100MHz is -39dB.
73 Kees K5BCQ
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Raj vu2zap
Ripley
Andy Sagoya
_Dave_ AD0B