Any idea how much the sBitx will cost?
Thanks and 73, Michael N4MJR?
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Re: UBITX v6 spazzes out when TX on 40m LSB
I had a similar issue with various lengths of coax.? Used a 1:1 unun from LDG - problem solved!
--
Mark, kb9woo
Milwaukee, WI uBITX v6
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Re: UBITX v6 spazzes out when TX on 40m LSB
Thanks guys, I have ordered some ferrite beads and am using a manual tuner for the ubitx. There is maybe a 10ft coax run to the antenna from the tuner. Going to try with various lengths of coax and different antennas.
Will report back.
Tim
N7LVB
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Sounds good Ashhar, I will keep an eye out for the announcement !!
On Thu, 30 Jun 2022 at 15:34, Ashhar Farhan < farhanbox@...> wrote: Peter, I am testing the software. Now, it is only bug fixes. Unfortunately I am an old school ham and I have no prior experience with the digital modes.? I am writing the manual while using the radio. If all is well, this weekend. - f
Has anyone else seen any recent details of when the sbitx will be released ?
On Thu, 30 Jun 2022 at 14:26, Ashhar Farhan < farhanbox@...> wrote: It is a diode mixer. The kiss leaks carrier?
On Thu, Jun 30, 2022, 6:46 PM Niels Jalling < niels@...> wrote: Hi Ashar
It was fun to see you updating when I was reading the FT8 section :-)
When can we see the full schematic of the transceiver? Is the second mixer a? 3157? in the end product or is it a diode ring mixer as seen in one of the videos?
73 de oz9ny, Niels
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Hi Farhan Living one side sBitx manual, when we can we lay hands on the set what is the fun. Hope ny next Lamakaan meet we get the set in hand
Regards Bala
On Thu, 30 Jun 2022 at 2:48 PM, Rafael Diniz < rafael@...> wrote: Thanks a lot Farhan!
Can't wait to put my hands in a sBitx!
: )
Cheers,
Rafael
On 6/30/22 00:30, Ashhar Farhan wrote:
> People,
> I am writing a short manual for the sbitx. I just started it but in
> the spirit of "Share early, share frequently", I am editing it online
> on google docs.
> You can follow my progress at
>
> Comments are welcome.
> - f
>
|
Peter, I am testing the software. Now, it is only bug fixes. Unfortunately I am an old school ham and I have no prior experience with the digital modes.? I am writing the manual while using the radio. If all is well, this weekend. - f
Has anyone else seen any recent details of when the sbitx will be released ?
On Thu, 30 Jun 2022 at 14:26, Ashhar Farhan < farhanbox@...> wrote: It is a diode mixer. The kiss leaks carrier?
On Thu, Jun 30, 2022, 6:46 PM Niels Jalling < niels@...> wrote: Hi Ashar
It was fun to see you updating when I was reading the FT8 section :-)
When can we see the full schematic of the transceiver? Is the second mixer a? 3157? in the end product or is it a diode ring mixer as seen in one of the videos?
73 de oz9ny, Niels
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Re: uBTIX no signal or reception
Ulf,
I agree with the other Dave. If you hear signals with the older arduino, then your rig is definitely not dead. I would say 70% alignment,or software incompatibility,or30% arduino problem.
Dont solder or unsolder anything until you have everything up and running. you need base setting so you can compare previous to current. Check your if settings,etc. reinstall stock firmware and? get your radio back to original condition. then proceed to replace the display and the software.
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Re: UBITX v6 spazzes out when TX on 40m LSB
On one of my problem children like this one, i found that my swr was actually high even though the tuner was indicating otherwise. I built a manual tuner and incorporated an swr circuit into it and the problem was solved for that particular radio. Might double check the accuracy of the tuner.
had another one that was acting squirrly and i added caps from the board to a copper coated circuit board i installed inside the rig and then bonded it to the earth buss ground going outside..
Also evans suggestions of the ferrite beads are spot on. they take care of about 90 percent of the problems. any line carrying power,etc.
I also have my power supply and radio equipment bonded to a common buss. takes alot of noise out of the front end and eliminates some of the neighborhood noise
trash.
I have # 6 solid going to 3 ground rods as a triad .all my equipment bond to it. But when lighting is coming close and i use a lighting detector in the shack,when it starts to light up and sqwak, i flip one switch and it grounds the incoming feed. i also disconnect all gear from any ac powered sources also.
73
David
AC9XH
gud thru hamcall.net,qrzcq.com and FCC
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Has anyone else seen any recent details of when the sbitx will be released ?
On Thu, 30 Jun 2022 at 14:26, Ashhar Farhan < farhanbox@...> wrote: It is a diode mixer. The kiss leaks carrier?
On Thu, Jun 30, 2022, 6:46 PM Niels Jalling < niels@...> wrote: Hi Ashar
It was fun to see you updating when I was reading the FT8 section :-)
When can we see the full schematic of the transceiver? Is the second mixer a? 3157? in the end product or is it a diode ring mixer as seen in one of the videos?
73 de oz9ny, Niels
|
It is a diode mixer. The kiss leaks carrier?
On Thu, Jun 30, 2022, 6:46 PM Niels Jalling < niels@...> wrote: Hi Ashar
It was fun to see you updating when I was reading the FT8 section :-)
When can we see the full schematic of the transceiver? Is the second mixer a? 3157? in the end product or is it a diode ring mixer as seen in one of the videos?
73 de oz9ny, Niels
|
Re: Ubitx ver 3 standoff size
Hi John,
The v4, v5, and v6 boards have M3 holes.? I do not have a v3, so can not measure the holes on that board.
73
Evan
AC9TU
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Re: Ubitx ver 3 standoff size
Yes M3 as I remember - 3mm metric.
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Show quoted text
On 30/06/2022 5:35 PM, Tech Guy wrote: I have tried some different standoffs but the pc board hole is smaller than what I have (6-32). Are they M3?
73s John N4HNO
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Hi Ashar
It was fun to see you updating when I was reading the FT8 section :-)
When can we see the full schematic of the transceiver? Is the second mixer a? 3157? in the end product or is it a diode ring mixer as seen in one of the videos?
73 de oz9ny, Niels
|
Really nice looking, full-featured, rig!
Jack, W8TEE
On Wednesday, June 29, 2022 at 11:30:26 PM EDT, Ashhar Farhan <farhanbox@...> wrote:
People, I am writing a short manual for the sbitx. I just started it but in the spirit of "Share early, share frequently", I am editing it online on google docs. You can follow my progress at
Comments are welcome. - f
-- Jack, W8TEE
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Ubitx ver 3 standoff size
I have tried some different standoffs but the pc board hole is smaller than what I have (6-32). Are they M3??
73s John N4HNO?
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Re: Farhan's Analog Again The Daylight Radio
I am impatiently waiting for the new schematic!!!
Almost ready to start, all components on my table.
It will be a great small rtx.
Paolo
Il 15/06/2022 15:39, Ashhar Farhan ha
scritto:
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Paulo,
Just wait a week. I am almost done with the
write up
Paulo,
Connect Q11 collector to the junction of R45 and R48.
Connect the open end of R51 to TX line.
In 602 the OUT-B is pin 5
Audio is for phones only.
Raj
On 15/06/2022 4:12 PM, Paul Allison wrote:
Hi,
I'm building "allanalog" with 1206 smd components on a
? cnc milled pcb ( Easyeda, Flatcam, very old? cncusb ,
all freeware )
All the circuit except BPF, LPF and power rf section
are on a 86x66mm pcb, ( VFO 32x16mm) non the smallest
possible,
but I'm a 66 y. o. amateur, not 007......Some
questions:
really collector of Q11 is not connected? Why?
On SA602 there are two pins named "2" I suppose non
connected are pins "5": right?
On audio output is there enough power for a loudspeaker
or only for an headphone?
I do not have a 3d cnc, only a cnc milling machine: are
toroid made of plastic? Dimensions?
2.15uH are 32.8T......2uH 31.6T....1.6uH 28.3T ?
Will someone sell the 3d cnc part of the VFO ?
Thank you
Paolo from Italy
Il 03/06/2022 12:57, Raj vu2zap ha scritto:
Q11 collector not connected
Farhan.
Raj
At 03/06/2022, you wrote:
Pete and others who requested
the circuit, here it is:
1. The circuit is still to evolve into a CW/SSB
transceiver, at present it is only SSB.
2. The relay used to switch the crystal and low-pass
filters can be replaced with some tricky but simple
electronic T/R. I just took the simple route out.
.3 The PA + driver are the only places? where bifilar
transformers are used, I will eliminate that as well.?
The write-up is still being edited on?
, I publish it on when I am
done.
On Fri, May 27, 2022 at 2:12 AM Pete Eaton <zx97lite@...>
wrote:
- Hi Farhan,
- Any luck finding the Daylight Radio schematic.
- Thanks!
- Pete?? WB9FLW
- On Tuesday, May 24, 2022, 07:29:08 AM CDT, Pete
Eaton <zx97lite@...>
wrote:
- No problem Farhan, appreciate you doing this for
me.
- Have a safe trip home.
- Pete?? WB9FLW
- On Tuesday, May 24, 2022, 07:04:41 AM CDT,
Ashhar Farhan <farhanbox@...>
wrote:
- Pete,
- I will, my thinkpad is acting up and I guess I
will have to wait until I reach Hyderabad to fix
it.
- - f
- On Mon, May 23, 2022, 5:14 AM Pete Eaton <zx97lite@...>
wrote:
- Hi Farhan,
- Are you still going to send the Circuit
Diagram.
- If not I totally understand and will wait
for the FDIM Proceedings to get here.
- Thanks!
- Pete?? WB9FLW
- On Saturday, May 21, 2022, 04:12:21 PM CDT,
Pete Eaton <zx97lite@...>
wrote:
- Thanks, that would be *Great*
- Pete
- On Saturday, May 21, 2022, 04:06:38 PM CDT,
Ashhar Farhan <farhanbox@...>
wrote:
- I guess I can send you the circuit diagram
all the same
- On Sat, May 21, 2022, 4:20 PM Pete Eaton
<zx97lite@...>
wrote:
- Hi Farhan,
- I was on Zoom so I was taking notes as
fast as I could during your talk.?? Also
took a mental snapshot of the Schematic.
- Look forward to getting the Proceedings
and your Paper.
- Thanks for all you do!
- Pete?? WB9FLW?
- P.S.? Big Cosby, Stills & Nash Fan
here as well !
- On Saturday, May 21, 2022, 03:02:42 PM
CDT, Ashhar Farhan <farhanbox@...>
wrote:
- Pete,
- Thank you for summing it up.?? "Daylight
Again" is a cosby, still and nash song
about the losses and memory. I thought it
was appropriate for dayton after 2 years.
- The bandpass filter as well as the
crystal filter is shared.
- I wrote the paper for thr FDIM. We will
have to wait for them to publish it first.
- - f
- On Sat, May 21, 2022, 2:44 PM Pete Eaton
<zx97lite@...>
wrote:
- Hi Nigel,
- Quick intro name is Pete, call
WB9FLW, qth Maryville, IL USA.
- For several years now I have wanted
to build a BITX Rig from scratch. The
Picture you put on
of your 40 Meter Transceiver back in
2017 really caught my eye.
- Farhan gave a wonderful presentation
at FDIM on Thursday that really got my
attention. His talk was on a new
Analog Rig called "The Daylight Radio"
(not really sure were the name came
from).
- Key Points:
- * Hight Performance 7 MHz 5 Watt SSB
Transceiver?
- * Draws just 24 ma of Current
- * 90 dB Dynamic Range, 80 dB
close-in Dynamic Range
- * 3 D Printed Rock Stable, Low Noise
PTO
- * Uses 3D Printed Air Core Toroids!
- * Junk Box Parts
- * Cost Less than $20 to Build
- * Simple to Assemble
- * Undo the Love - who needs 50 Ohms
- * Uses 5 MHz QER Filter
- * VFO is at a very low frequency of
2 MHz, able to decode FT8 Signals no
Problem
- * Receiver Mixers are pairs of JFET
310 in Cascode
- * Active Devices 2n2222a, J310,
IRF510
- * IC's 5532A, NE602
- * Uses a PTO, No Air Variable Caps
or Vernier Dial Needed!
- * PTO is Linear
- * It is no more complicated that the
BITX Rigs
- This is *not* a Bi Directional aka
BITX Rig. Only thing shared is the
Crystal Filter. One can build the
Receiver first, get it operating
before constructing the Transmitter.
- He finished the Rig just a few days
ago and wrote the Paper on the Flight
coming over here, it should be posted
on
in a few days.
- I thought I would contact Folks that
I thought might me interested thus
this Email to you.
- When I get any more info from Farhan
I will forward it to you asap.
- Will try to stir up some more
interest.
- Best Wishes,
- Pete?? WB9FLW
|
The manual looks good Ashhar, I guess people will be able to make additional contributions once they start playing with the device, whilst we are on the subject it would be really good if we could get an update as to when the hardware will be available for sale, it has been a long wait but for very understandable reasons, but a lot of us are really looking forward to it.
Best regards, Peter.
On Thu, 30 Jun 2022 at 04:30, Ashhar Farhan < farhanbox@...> wrote: People, I am writing a short manual for the sbitx. I just started it but in the spirit of "Share early, share frequently", I am editing it online on google docs. You can follow my progress at
Comments are welcome. - f
|
Re: UBITX v6 spazzes out when TX on 40m LSB
I had a problem on a well-matched 40m end-fed -half-wave portable antenna. Only on 40m the uBitX radio running CEC software would go into menu mode when transmitting. Adding a 10 ft counterpoise to the shield connection at the antenna solved the issue.
Unbalanced antennas like end fed or off-center-fed dipoles are notorious for getting rf into the shack via the coax shield. Using RF chokes (8-10 loops of coax), line isolators, ferrite chokes particularly on items being affected, and common-point grounding can help.
=Vic=
|
Thanks a lot Farhan!
Can't wait to put my hands in a sBitx!
: )
Cheers,
Rafael
toggle quoted message
Show quoted text
On 6/30/22 00:30, Ashhar Farhan wrote: People,
I am writing a short manual for the sbitx. I just started it but in the spirit of "Share early, share frequently", I am editing it online on google docs.
You can follow my progress at
Comments are welcome.
- f
|
Assistance required for new UBitx V6 purchaser please,
30/6/22
To :- bitx 20 user group? + others who have recently forwarded? me correspondence on other ubix issues.??
Assistance required for new & fairly "green"??UBitx? V6? purchaser please,
I have assembled full kit? but need the following answered please :-? ?( advise if connections same as for the next model up specified as per data from interim manual? just located below >>? ??
..................................................................................................................................................
1. There was no instructions for V 6? & I can't figure out correct polarity for the 3 to 5 Amp? DC supply please. ? ? ? ? ? ? ( I have nearly been caught out with popular Guitar Sound effect units that have ? ? ? ? ? ? centre pin negative instead of usual centre pin polarity +? ,? ? ? ? ? ? ? so don't want to destroy my unit on first power-up !!!
2. there? were extra wire plug connectors linked to fly leads , but no explanation as to use. I have connected up ones listed to be affixed , but not these extras as pictured below? I have seen the corresponding? plug in points on main circuit board but don't know what they are for as no explanation came with kit for these.
3. There was also a white plastic tool that looks a bit like a small ball-point pen but without any ink tube ? ? ? ?but there again there were no details as to what it is for .
?& 4? no statement nor diagram specifying which of front plug -in connectors did what on V6? ??? ? ? ? ? ?Is it the same as for next model up the?Sbitx v1.01 ref. as listed below >>
Any help in explaining the supply polarity ,socket layout & use of these extras in kit would be appreciated.?
Please send info to my email address below, so I can get started using the ubix? V 6 properly .
Very many thanks in anticipation ,? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( refer picture &?Sbitx v1.01 details below >>>> ) Cheers,?
From :brendondreaver@...?
New Zealand Amateur? ZL1OO
-------------------------------------------------------------------------------------------------------- Data just released below is for next model up in sophistication
ie for model Sbitx v1.01 =
IMPORTANT: Before powering on, it is vital to check the polarity of the power pin. The provided DC jack should have the center pin connected to +ve and the outer barrel connected to the Ground.
There are three phono jacks on the front panel: 1. The left jack is for the microphone. The TIP is microphone, RING is PTT and the SLEEVE is GND. This arrangement allows you to use regular microphones. 2. The middle jack is for the earphones/headphones. The standard headphones or earphones that come with mobile phones should work. 3. The right side jack is for the key/keyer. The TIP is Dot, the RING is Dash and the SLEEVE is the Ground. You can also use the microphone¡¯s PTT as a straight key. The setting for the kind of key plugged in is described in the Operating CW Section. Plug in the headphones into the middle jack on the front-panel. The standard Phone/PC handsets and headphones will work well. Choose a headphone that is comfortable for long hours of working. The demands on the headphones in a contest or weak signal work are very different from those of a HiFi music listening for pleasure.
The straight key should be plugged in to the right most jack on the front-panel. The wiring for the straight key is : (Tip : Key switch; Ring: Nothing; Sleeve: Ground) [Drawing] You can switch to using an Iambic keyer. To do this, attach a keyboard and type: \cwinput keyer [Enter] The keyer is wired as follows: (Tip: Dash, Ring: Dot, Sleeve: Ground)
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Raj vu2zap
Paul Allison
Vic WA4THR