Roflmao! I wasn't going to comment but this guy is right on with this.
|
On Mon, Mar 5, 2018 at 03:04 pm, Tim Gorman wrote:
Walter,
What kind of thermo switch are you using?
tim ab0wr
On Sun, 04 Mar 2018 17:56:59 -0800
"Walter" <W9KJO@...> wrote:
On Sun, Mar 4, 2018 at 05:55 pm, Walter wrote:
On Sat, Mar 3, 2018 at 06:55 pm, <dmason@...> wrote:
Walter, I am going to interface my ubitx to my existing Signalink
(bought a 5 pin DIN chassis connected so I can use the same cable
that I use with my Ten-Tec Jupiter). ?Did you have to do anything
special other than running the mic, speaker, and PTT wires to the
Signalink? ?Thanks.
Dale, W9ESE
Nothing more then just connecting those to the correct pins on my 8
pin Kenwood connector.? However I will set up a separate output off
the audio amp IC for a constant output for digital modes so I can
vary the audio to my speaker or headphone.? I used both Mic+ and
Mic- but I don't know how necessary the Mic- was I just decided to
do it that way.? It works really well.
?
--
73, W9KJO
Walter
BTW I did install a small cooling fan 40mm with a thermo switch on
the heat sinks of the finals
--
73, W9KJO
Walter
You might be able to get them cheeper elswhere.? I have had these on some various ham equipment for a number of years.? these work great and have yet to fail. These come with a rubber cover on them.? Don't take them off they will conduct. I just put then on the heat sink in different ways and they turn my fan on and off.? simple. I know some are thinking, Build it out of electronics, but some things are just fine kept simple. ? -- 73, W9KJO Walter
|
Mine was ordered Jan 5th and just got shipment notification today. DHL says it should be here by this Thursday evening. (pending customs, weather, aurora, meteors, etc)
I concur with the 60 day mark being a safe bet.
|
Re: CAT Support uBITX Firmware CEC Version 1.04 Release
#ubitx
Bob
Tanks for feed back. I often test with nano only.?
I sometimes did not make A6 High, so I did not know if CW-Key was being pressed and I had a hard time trying to catch a bug. so?I have now soldered the test Nano.
Ian KD8CEC
No uBitx yet but CECBT 1.04 working well with Nano and I2C 20x4 lcd display and HRD control cat is fine.
PC acting strange, W10pro refusing to work with updated Manager but previous version still ok.
73 de Bob GM4CID
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
|
Postage from the US to down here in Oz is now unbelievably expensive compared with what the rates were a few years ago. And we also face the current exchange rate plus the money changers margin. By contrast, the Chinese suppliers often work in Australian currency and free postage. I am sorry guys, but that makes it hard for US suppliers to compete. An item on eBay costing USD10.00 may cost an extra USD50.00 to get it here.
--
Kevin B. G. Luxford
kbgluxford@...
|
I look at it that the Arduino is an "easy" way to get the job done. It doesn't mean it's the best, but things like a Teensy and a Blue Pill can take a bit more time to get working the right way. Although, they might open the door to new features or solve old problems.
That's my $.02
-Fred KC3HMS
On Mar 5, 2018 6:20 PM, "Michael Monteith via Groups.Io" <michael_r_monteith= [email protected]> wrote: ? Honestly, it's great to see people thinking outside the box.? Coming up with all sorts of options for people to use their favorite microcontroller.?? That's what is great about the Bitx and uBitx.?? It sure has got a lot of people active in all areas.? It's interesting to me as I've been into electronics, programming, and microcontrollers.? I'm just very new to RF.?? Getting to have it all together is really cool.?
?73, Michael
KM4OLT
|
I'm going to order mine next month, has it shipped yet?
On Mar 5, 2018 7:07 PM, "James Tate" < kw4sz@...> wrote:
Exactly 60 days! Mine shipped today! Another 3 to 4 weeks and I can get started on it! LOL!
?
J
73
KW4SZ
Corbett
?
?
From: [email protected] [mailto:[email protected]]
On Behalf Of Jason Schlager
Sent: Monday, March 05, 2018 3:10 PM
To: [email protected]
Subject: Re: [BITX20] ubitx order
?
My uBitx took about 60 days from order to delivered by DHL to USA.?
--
Jason Schlager
KM6AUS
|
Re: Modifying Bitx40 BPF band pass filter
PH0KKO
You can change the BPF filter center frequency by just changing the capacitors,
but there is a potential problem.? As the capacitance gets higher the filter bandwidth
gets narrower.? You can see this action by emulating the filter in LTSpice circuit
simulator.? It may be that you only need to add a small amount of capacitance
and the filter bandwidth will remain within usable range.?
It may be possible to still add turns to the existing toroids.? If you can poke a
small hole through the glue you might be able to add a turn or so in series with
existing windings.? This might not look pretty but it should be functional.?
It is possible to manually measure filter bandwidth if you have a stable oscillator
that will tune over the frequency range.? Add a 6db pad on input and output
to maintain proper terminating impedance and use a detector and DC meter
to monitor output versus input over the filter bandwidth.? You may want to
convert resulting measurements into db instead of volts.
Hope some of this helps.
Arv? K7HKL
_._
On Mon, Mar 5, 2018 at 5:36 PM, <kaapstad1@...> wrote: Hi all,
I am building the Bitx40 dead bug style. Basically changing the Bitx20 and using a different BPF, VFO frequency and low pass filter. For the BPF I used the design shown on the hfsigs website. Instead of T30-6 I used three T37-6 I had lying around, added 5 extra turns (45 in total) on each toroid which came to 6 uH as well. It turns out the signal peaks at around 7.550 MHz which is too high in frequency.?
What would be the best way to lower the center frequency of this filter? I have the toroids covered in glue so if it is possible by addjusting the capacitor values only. If the filter becomes wider that would not be a problem at all. I use an IF of 10 MHz and a VFO of 17 so there will not be many harmonics in the 40 meter band.
I would appreciate it if someone can point me in the right direction.
Thanks, PH0KKO
|
Modifying Bitx40 BPF band pass filter
Hi all,
I am building the Bitx40 dead bug style. Basically changing the Bitx20 and using a different BPF, VFO frequency and low pass filter. For the BPF I used the design shown on the hfsigs website. Instead of T30-6 I used three T37-6 I had lying around, added 5 extra turns (45 in total) on each toroid which came to 6 uH as well. It turns out the signal peaks at around 7.550 MHz which is too high in frequency.?
What would be the best way to lower the center frequency of this filter? I have the toroids covered in glue so if it is possible by addjusting the capacitor values only. If the filter becomes wider that would not be a problem at all. I use an IF of 10 MHz and a VFO of 17 so there will not be many harmonics in the 40 meter band.
I would appreciate it if someone can point me in the right direction.
Thanks, PH0KKO
|
Re: Raduino Replacement, COMING SOON!
hey look what just turned up! X60, and lpf and hpf and audio breakouts..
|
|
|
I received my kit about 15 minutes ago SN 654/2? Ordered Dec 19 shipped India Post Feb 12 to Toronto area Canada.
Once I clear my ERC rotator controller I may see what I can do with it.? Have the excellway case and 3D printed front and rear panels.
73 de Rod VE3ISO
|
Re: I was given a unit and u1 ic has a hole blown in it. What is the ic numer, all I can see I t 22m. Its in the audio circut
I am looking at a few replacements myself as I have the WX version that seems to be prone to blow.
Some of the other options
NJM2073D-ND
NTE7155
or buy another TDA2822
I have not tested any of them yet so keep that in mind
--
David
?N8DAH
|
Re: I was given a unit and u1 ic has a hole blown in it. What is the ic numer, all I can see I t 22m. Its in the audio circut
Here ya go:
Near the bottom. Right click on it and save it locally so you can enlarge it. It enlarges quite clearly.
Vince.
toggle quoted message
Show quoted text
On 03/05/2018 06:40 PM, ae1ct1998 wrote: HI DAVE
THANK YOU FOR THE INFO. IS THAT IC THE AUDIO OUTPUT? CAN IT BE
SUBSITUTED FOR ANOTHER TYPE LM-386? IS THERE ANY PLACE THAT HAS A
SCHEMATIC THAT CAN BE READ, THE ONE THAT CAME WITH THE PAPERWORK IS HARD
TO READ.
GARY
On Mon, Mar 5, 2018 at 5:02 PM, N8DAH <Dherron@...
<mailto:Dherron@...>> wrote:
TDA2822M
--
David
N8DAH
Kit-Projects.com <>
--
Michigan VHF Corp.
|
Re: CAT Support uBITX Firmware CEC Version 1.04 Release
#ubitx
Nigel Thank you for your favor.
I will contact you by private e-mail separately.
Ian KD8CEC
Thanks Ian, will try it out when I can.
Hope you get some assistance in writing/contributions to a user guide as per your request on your website.
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
|
Re: I was given a unit and u1 ic has a hole blown in it. What is the ic numer, all I can see I t 22m. Its in the audio circut
HI DAVE
THANK YOU FOR THE INFO. IS THAT IC THE AUDIO OUTPUT? CAN IT BE SUBSITUTED FOR ANOTHER TYPE LM-386? IS THERE ANY PLACE THAT HAS A SCHEMATIC THAT CAN BE READ, THE ONE THAT CAME WITH THE PAPERWORK IS HARD TO READ.
GARY
On Mon, Mar 5, 2018 at 5:02 PM, N8DAH <Dherron@...> wrote: TDA2822M
--
David
?N8DAH
|
Re: CAT Support uBITX Firmware CEC Version 1.04 Release
#ubitx
Carlos Thanks for CW Keying Test.
If you get a chance later, try using the built-in Memory Keyer.
I have not written the user manual yet, but you can test it by watching the video below.
Ian KD8CEC
Last great update (1.04) works perfectly on cw. Thanks Ian..... Carlos
--
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
|
Re: CAT Support uBITX Firmware CEC Version 1.04 Release
#ubitx
Joel Thank you for your continued interest.
i will release another beta version within a few days.
Ian KD8CEC
Thanks for the release Ian, good job.
Joel
N6ALT
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
|
? Honestly, it's great to see people thinking outside the box.? Coming up with all sorts of options for people to use their favorite microcontroller.?? That's what is great about the Bitx and uBitx.?? It sure has got a lot of people active in all areas.? It's interesting to me as I've been into electronics, programming, and microcontrollers.? I'm just very new to RF.?? Getting to have it all together is really cool.?
?73, Michael
KM4OLT
|
I have put it in the Files on this group
|
N1AFF - formerly KB1JPW
Nick VK4PP
N8DAH
Michael Monteith