I cant even find settings menu....only USB/LSB, calibration and BFO....
Kari
|
Re: BITX QSO Night, Sunday, January 7, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere
I like WA2FZW's suggestion of a Sunday 3PM EST meeting time as well. Nothing says we can't do both an afternoon and evening?
get-together. ?
The 40m band was in miserable shape at 7:00 pm last night. I called CQ BITX on 7.277 Mhz off and on for about 40 minutes
and heard nothing. Tuning around the band, I could only a hear a couple of very weak stations and noise.?
Cheers
Michael VE3WMB?
|
The Si5351 can easily send rtty. see the cw code of ubitx. you have to just push the clock to a different frequency.
- f
On Mon, Jan 8, 2018 at 4:15 PM, Rod Self <km6sn@...> wrote:
Hi All,
See below from W0EB:
I have not yet done the digging, but if the si5351 is like the
si570 then I believe hardware fsk is quite possible, with no ubitx
hardware changes. Just use the key input for FSK keying. I will
check it out.
Rod KM6Sn
On 01/07/2018 06:11 PM, Jim Sheldon
wrote:
After Ron helped me
get over the "stupids" and I finally learned how to properly
compile & upload stuff to the Raduino, I now have Ron's mods
running and he's fixed a lot of little annoying things (annoying
to me anyway).? In between bricking & fixing the rig (all
firmware, no hardware) I managed to make a couple of real nice 20
meter SSB QSO's and also a couple of 40 meter CW QSO's as well
with it.
I heard a lot of RTTY (contest this weekend) and sure wish there
were at least 5 more digital pins on the Nano.? Then it would
really easy to implement a good CW Keyer and even implement true FSK for RTTY.? You'd still need a
computer with sound card running something like Mako Mori's
(JE1HHT) MMTTY program, but that would really work well.?
Hardware FSK would be much cleaner to implement than tones into
the SSB section.? As wide as the filter is, I'd be wary of the
2nd and maybe even 3rd harmonics of the tones being transmitted
at the same time as the fundamentals.? That would really
create havoc on the bands especially during a RTTY contest, not to
mention incur the wrath of the FCC as well.
Jim - W0EB
This little rig just keeps getting better and quite rapidly too!
|
did you use the settings menu to lower the bottom frequency allowed?
toggle quoted message
Show quoted text
I tested mine and I cant even tune my receiver under 1 Mhz?? How to listen under 1Mhz??
Kari
|
Re: Ubitx calibration help
If you have a ubitx, then ALL the frequencies are derived from the si5351...
So how do you know it is "off"?? ? Can you send an AM carrier into an antenna with your 7200 and find the signal with a 6" wire for an antenna on the ubitx and zero beat and measure the difference?
Or tell us how you measured that it is off frequency.
Cheers,
gordon
toggle quoted message
Show quoted text
Gordon
Tuned to 10mhz. Selected calibrate in setup and zero beat per instructions. I am close but think it could be tweaked a bit more.?
I have a icom 7200 - need to update qrz profile
I reloaded Ver 2 from Ashars blog site
I can make code changes using IDE.?
Art
Sent from my iPhone
On Jan 7, 2018, at 10:55 PM, Gordon Gibby < ggibby@...> wrote:
?Ah!? ?From your QRZ page you have an ICOM 718 exactly like me.? ?
One additional question:? are you able to make small changes in the code of the firmware that you've downloaded? like minor edits?
And which VERSION of firmware are you using?
Cheers,
gordon
?Can you give a little more information?
How far off?? Exactly how did you measure???
What did you do (give the details) when you tried "calibrating"??
Do you have accesss to an accurate existing receiver with a digital readout?
Cheers,
gordon
Need some advice on how to calibrate my ubitx. I have read the instructions. ?After several tries no success. Reloaded the firmware but freq is still off. Is there a better
way to calibrate?
Art- N2AJO?
|
I tested mine and I cant even tune my receiver under 1 Mhz?? How to listen under 1Mhz??
Kari
|
Kari,
I was able to hear a local beacon on 398khz so it at least receives this low.? If it transmits I expect it will need a LPF for this band as the onboard LPFs will be insufficient.
Regards
Simon
VK3ELH
|
The si5351bx routines used in Allards code and in the uBitx already do bulk transfers: See post? /g/BITX20/message/34362Though doing FSK by i2c writes to the Si5351 will make for abrupt frequency transitions, which will cause adjacent channel interference. The Si5351 does seem to not create any runt clocks during such transitions though. The Si5340 has an SPI inerface allowing much faster writes, so you could do the transition as a series of smaller steps. Farhan build an NBFM transmitter using the Si5351 by pulling around the 25mhz reference oscillator.around. That's probably the best approach. ? /g/BITX20/message/34020
On Mon, Jan 8, 2018 at 03:41 am, Rod Self wrote:
Additional comment which solved the problem: Kicking up the Wire library speed from 100kHz to 400kHz with
Wire.setClock(400000L);and using a bulk transfer to shove out a pre-calculated array of 8 bytes that is MultiSynth0's new divisor (instead of sending register1-byte1-register2-byte2-etc). The Si5351 supports bulk transfer with automatic address increments, so a whole new setup for MS0 was a total of 9 sent bytes. (Initial address plus the eight bytes of divisor+number+denominator.) This took the minimum pulse down to about 0.4ms, well below the 1ms I required. Hurray!?
?
|
Free uBitx development enclosure
Hi All Here is the first step in my free uBitx development enclosure, holes for controls to follow.....  ...yes the plastic box it came in. Be careful when you cut the holes! 73 Mike G0CVZ
|
Re: Ubitx calibration help
Gordon
Tuned to 10mhz. Selected calibrate in setup and zero beat per instructions. I am close but think it could be tweaked a bit more.?
I have a icom 7200 - need to update qrz profile
I reloaded Ver 2 from Ashars blog site
I can make code changes using IDE.?
toggle quoted message
Show quoted text
On Jan 7, 2018, at 10:55 PM, Gordon Gibby < ggibby@...> wrote:
?Ah!? ?From your QRZ page you have an ICOM 718 exactly like me.? ?
One additional question:? are you able to make small changes in the code of the firmware that you've downloaded? like minor edits?
And which VERSION of firmware are you using?
Cheers,
gordon
?Can you give a little more information?
How far off?? Exactly how did you measure???
What did you do (give the details) when you tried "calibrating"??
Do you have accesss to an accurate existing receiver with a digital readout?
Cheers,
gordon
Need some advice on how to calibrate my ubitx. I have read the instructions. ?After several tries no success. Reloaded the firmware but freq is still off. Is there a better
way to calibrate?
Art- N2AJO?
|
Hi All,
It appears ham rtty speed fsk is quite feasible on SI5351.
Looking at
especially the paragraph that says
"Additional comment which solved the problem: Kicking up the
Wire library speed from 100kHz to 400kHz with
Wire.setClock(400000L);and using a bulk transfer to shove out a
pre-calculated array of 8 bytes that is MultiSynth0's new
divisor (instead of sending
register1-byte1-register2-byte2-etc). The Si5351 supports bulk
transfer with automatic address increments, so a whole new setup
for MS0 was a total of 9 sent bytes. (Initial address plus the
eight bytes of divisor+number+denominator.) This took the
minimum pulse down to about 0.4ms, well below the 1ms I
required. Hurray!?
"
makes me believe it would be viable, maybe even at I2C bus speed
of 100 kHz.
Rod KM6SN
|
Hi All,
See below from W0EB:
I have not yet done the digging, but if the si5351 is like the
si570 then I believe hardware fsk is quite possible, with no ubitx
hardware changes. Just use the key input for FSK keying. I will
check it out.
Rod KM6Sn
On 01/07/2018 06:11 PM, Jim Sheldon
wrote:
toggle quoted message
Show quoted text
After Ron helped me
get over the "stupids" and I finally learned how to properly
compile & upload stuff to the Raduino, I now have Ron's mods
running and he's fixed a lot of little annoying things (annoying
to me anyway).? In between bricking & fixing the rig (all
firmware, no hardware) I managed to make a couple of real nice 20
meter SSB QSO's and also a couple of 40 meter CW QSO's as well
with it.
I heard a lot of RTTY (contest this weekend) and sure wish there
were at least 5 more digital pins on the Nano.? Then it would
really easy to implement a good CW Keyer and even implement true FSK for RTTY.? You'd still need a
computer with sound card running something like Mako Mori's
(JE1HHT) MMTTY program, but that would really work well.?
Hardware FSK would be much cleaner to implement than tones into
the SSB section.? As wide as the filter is, I'd be wary of the
2nd and maybe even 3rd harmonics of the tones being transmitted
at the same time as the fundamentals.? That would really
create havoc on the bands especially during a RTTY contest, not to
mention incur the wrath of the FCC as well.
Jim - W0EB
This little rig just keeps getting better and quite rapidly too!
|
I¡¯ll publish the schematic next weekend. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: Like us on Facebook! ? ? email:? bill@... ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of David Holland
Sent: Monday, January 08, 2018 3:12 AM
To: [email protected]
Subject: Re: [BITX20] Tuner Kit Progress? Hi Bill, I am very interested in your affordable autotuner.? I must have missed the beginning of this thread.? Would you please be so kind as to let me know the link to the details. Thank you. Best regards, David G4LDT ? On 08/01/2018 04:43, K9HZ wrote: There is plenty of overlap in the inductance rank now. ?The final kit will probably be closer to doubling.? ? Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: ? email:??bill@... ? Hi Bill,
Great project. Very interested in this as a remote tuner.?
One query - why are the last two 5.2uH and 10.6uH as opposed to continuing to double up? Not a criticism just seeking to understand.
Regards
Simon VK3ELH?
?
|
Hi Bill,
I am very interested in your affordable autotuner.? I must have missed the beginning of this thread.? Would you please be so kind as to let me know the link to the details.
Thank you.
Best regards,
David G4LDT
On 08/01/2018 04:43, K9HZ wrote:
toggle quoted message
Show quoted text
There is plenty of overlap in the inductance rank now. ?The final kit will probably be closer to doubling.?
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
?
Owner - Operator
Big Signal Ranch ¨C K9ZC
Staunton, Illinois
?
Owner ¨C Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it:
email:??bill@...
?
Hi Bill,
Great project. Very interested in this as a remote tuner.?
One query - why are the last two 5.2uH and 10.6uH as opposed to continuing to double up? Not a criticism just seeking to understand.
Regards
Simon VK3ELH?
|
Re: Customisable panel cutout template for the EF01 project box
#bitx40
@Vince - OK well at least it's not just me then. Bit of a shame but not that surprised, it was exceptionally cheap.
@Arv - Yes don't see why this isn't possible. I've not seen any work done on this in my? extensive research on B40 mods.. You could make a feature request to Allard perhaps :-)
|
Hi all
I am new to this group and just got uBitx from the custom...only 22% VAT was added
I am wondering if uBitx? can somehow work on 472kHz amateur band?
Kari OH5YW
|
Re: BITX40 Display problem
The Red LED on the Arduino board is on solid.
|
Re: Win a BitX40 kit January 6, by showing off your project, in East TN in a nice warm building see you there and meet Dr. Jack Purdum and bring everything he has ever written for him to autograph
Followup on the Builders Fest in East TN, it was great, ask Dr. Jack, he packed the house with Bitx enthusiasts. And the hamfest with its indoor arena tailgating was at capacity for the first time ever. ?
No Doubt BitXes brought a good number of them in.
I was hoping to have some nice pictures, so I could have posted a link by now and said, here go look....but, clubs being what they are, I am not taking the hit, I had a few of the contributors on the board contribute to door prizes and guys I am struggling to get pictures of what took place. ?The club has chosen to suppress any pictures....for reasons I can only guess pretty accurate. ?So, I am disappointed in myself for not believing what I was experiencing....So enough of that,?
The enthusiasm was there for the expo, to do what Farhan is doing and actually have builds on the spot....wow....what I do to get to one of those....can't make it to India, I hope he has better luck with pictures.
Craig?
KM4YEC
|
Re: group build at LARC'18
let me be the first to say...you are mistaken.?
I am interested. ?I would surely be safe to say there are others....
I invited BitXes to East Tennessee, USA ?just yesterday, and I very badly wanted to share the results with everyone here to show that very point, just how much interest there is. The BitXes showed up from Washington State, Arkansas, Kentucky, Virginia, and images of BitX40s were sent in from the Netherlands and Venezuela....and maybe other places, I have to admit I don't know the full extent of my production in East TN, as my EX-club as of yesterday, cut me off from feedback before the show even started, and I won't be getting any photos and Christmas Cards either. ?But, I got Dr. Jack and bunch of BitXes to East TN.....so....you betcha we are interested.?
Dr. Jack filled the house with BitX enthusiasts.
I say, please share, and others take notes. ?Please have some kind of photo record to share.?
Craig
KM4YEC
|
This is probably not of universal interest to the group...
My club, the Lamakaan Amateur Radio Club is organizing the LARC'18 on January 26th and 27th. On the 27th afternoon, we are organizing a group wire-up of uBITX. VU3ELR, Sasi has designed a steel nice case for the ubitx. He is also organizing the speaker, mic and other things. We hope to bring up many uBITX during the workshop.?
Those in India who would like to attend this can register at . Note that you have to separately opt-in for the ubitx workshop. The Rs.7000 includes a ubitx kit, the case, etc. You have to bring your tools: own soldering iron, VOM, power supply, screw driver, pliers, cutter and wire-stripper.
See you all there.?
- f
|
K9HZ
Craig Thibodeaux