Re: Homebrew from scratch
#ubitx
Form an IEEE committee!
Control bus signal conflicts would be a challenge as they are when you try to stack the third Arduino shield designed by different groups.
Also add a clock bus. At least 3 clocks for the uBitx. And the pin count grows...
James
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Re: ND6T AGC and Click kit wiring notes
Please see the "Files" section listed in the next note, below. All info is there.
73 Kees K5BCQ
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Re: Homebrew from scratch
#ubitx
This is a good point of discussion.
Jack, W8TEE
On Wednesday, June 20, 2018, 8:38:24 PM EDT, tdelozie via Groups.Io <tdelozie@...> wrote:
TAPR has a kits for the HDSDR project which has a bus board called Atlas. Perhaps it could further inspire a hambus. The documentation at the bottom of the kit page describes it in detail.?
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Re: uBitx Easy Digi hookup advice?
#ubitx
Hi Doug, I used your method with great success. I did however, substitute R3 with a 1k pot connecting the wiper to C1. I wanted to be able to use an amplifier on digital but not at full uBitx power. This works to allow me to go from 0 to max out on the amp. 73, Dennis W7DRW 
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I have a new tested uBitX transceiver of the pre built type. Will it have a voltage protection for this IC included or do I have to add one?
Many thanks,
John vo1jcc.
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Re: uBitX CW Sidetone Volume
Mark I replaced R250 with a 10k trimpot to set the level. R250 is located at the front of the main board at the right edge of the Raduino board.
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On Jun 20, 2018, at 20:16, Mark M < junquemaile@...> wrote: I find the CW sidetone on my uBitX V3 to be annoyingly loud. Any suggestions on how to quiet it down? I'm running Ian's 1.08 firmware.
Thanks...? ? ? Mark? ? AA7TA
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Re: Homebrew from scratch
#ubitx
I suspect that some of our 3D printer gurus could come up with a card cage to mount the motherboard to.
I used a lot of Prolog STD-BUS products a long time ago and they had very nice plastic card cages in 2, 4, 8, 12, and 16 slots. Slot spacing needs a good think to allow spacing for anticipated component heights. I'm thinking 3/4 to 1 inch. Probably 4 or 8 slots to begin with.
I do not pretend to know the best arrangement of signals(software guy), but I'm sure it will require a mingling of ground traces to minimize cross-talk and doubled traces on power buses.
I was thinking of using the small sized stripboards as the card form factor.
Lots of possibilities. Standards are so great since there are so many of them.
James
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Re: uBitX CW Sidetone Volume
The sidetone level is dependant on the level of the volume control, so as a temporary fix you could turn your volume down slightly when you start sending and then readjust it on RX.?
A permanent solution might be to try increasing the value of R253 (currently 1K). It is near Crystal X1 and the Audio connector. ?
Michael VE3WMB?
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Bill;
The Ubtix takes a 8x8x3 box the fold down DRO is very interesting I have a Engineer/designer son in law I will fwd this to him and see what he comes up with, I want to take mine camping and this would work great.
Bob KA9CMH
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Re: Homebrew from scratch
#ubitx
TAPR has a kits for the HDSDR project which has a bus board called Atlas. Perhaps it could further inspire a hambus. The documentation at the bottom of the kit page describes it in detail.?
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Re: Homebrew from scratch
#ubitx
If hams were to design and standardize a ham-bus-system approach to modular equipment,
should the design be placed in public domain, or under one of the free-to-use licenses???
Should a group be formed specifically for the purpose of bus design, documentation, and
publication?
How would upgrades, modifications, and alternative bus designs be handled?
Seems there are lots of questions, lots of possible opinions, and lots of work to do.
Arv
_._
On Wed, Jun 20, 2018 at 6:18 PM w7hd.rh < w7hd.rh@...> wrote:
I solved it by using a single row of pins to the motherboard.?
The mounting arrangement included two slides (front and rear)
attached to mounting panels.? The socket mounted on the
motherboard was soldered in place, and a fairly stiff board was
used.? If you need yet more strength, spacers between the
motherboard and the bottom chassis will add far more than enough
strength.? The bus used consisted of 3 each 20-pin headers to
allow for varied signals and was terminated on one end (very
important for maintaining isolation).? The traces between boards
contained only the needed signals, such that all audio level
signals only connected to audio handling boards, etc.?
Ron W7HD
On 06/20/2018 04:40 PM, VK3HN wrote:
Hi Ron, Jack and
James.? 'Hambus' -- there's an idea.? Modules are common enough,
Mark at Minikits has a complete HF transceiver with header
connected modules, some (crystal filters, BPFs, LPFs) of which
stack.? These hint at a bus, with consistent assignments of power,
control and signal lines to specific pins.? Other projects have
pluggable daughterboards (the venerable Sierra's neat band
plugins, for example).??
The idea of a universal bus is appealing. In computer tradition,
the Hambus could be standardised and managed as a product in its
own right. Modules could then be designed for Hambus versions.
Imagine mixing and matching homebrew and vendor modules on a
Hambus.? Layout would be important for screening and short paths,
but? James' suggested 20 double 0.1 headers should be enough
separation.? Perhaps some strategically placed jumpers on certain
bus lines (audio, RF) could trim signal bus lines for better
isolation.?
First problem to solve -- how do you get physical strength when
you edge mount a vertical board on a double row 0.1 header?? Slide
the board between the two rows, bend pins in, solder both sides???
Minikits M1:
--
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter
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The FIRST thing you are supposed to do when you receive a package from a freight company is examine the unit being received. If it is damaged you file a claim with the freight company - IMMEDIATELY! With the driver if possible! If it is damaged severely do not accept receipt of the unit. When I worked for the local telephone company we received equipment bays where it was obvious had been skewered by a fork lift! I received pallets of equipment that had been broken in transit inside the trailer and the driver was actually shoveling units out of the back of the trailer onto the loading dock! None of this is the fault of the manufacturer! I didn't accept receipt of *any* of this. The freight company wound up providing new equipment which I assume was paid by their insurance. tim ab0wr On Wed, 20 Jun 2018 15:16:58 -0700 "Ray Koster via Groups.Io" <raykoster@...> wrote: They sold the kits, who else should I blame for damage in transit?
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Ray you said ¡°They sold the kits, who else should I blame for damage in transit?¡±. Although they did sell the kit Farhan didn¡¯t deliver it to your door personally. The first person that should have been contacted about this is your local postal system/delivery service, who ever was the last to handle your package. They are the ones that need to investigate and correct a problem that appears to exist or identify where this mishandling is occurring. It is unusual that all three packages were damaged, has this occurred with any other packages you¡¯ve ordered?
Farhan¡¯s group has mailed out thousands of packages worldwide and a few may have arrived damaged but those are the exception not the rule. I can¡¯t believe that your packages were singled out to be selectively damaged. Also the packaging has evolved into a more robust format from the first BITX¡¯s and I must say I was very impressed when I received mine.
I hope through all this you do get some resolution to the problem.
Skip Davis, NC9O
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Show quoted text
On Jun 20, 2018, at 18:16, Ray Koster via Groups.Io <raykoster@...> wrote:
They sold the kits, who else should I blame for damage in transit?
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Re: Homebrew from scratch
#ubitx
I solved it by using a single row of pins to the motherboard.?
The mounting arrangement included two slides (front and rear)
attached to mounting panels.? The socket mounted on the
motherboard was soldered in place, and a fairly stiff board was
used.? If you need yet more strength, spacers between the
motherboard and the bottom chassis will add far more than enough
strength.? The bus used consisted of 3 each 20-pin headers to
allow for varied signals and was terminated on one end (very
important for maintaining isolation).? The traces between boards
contained only the needed signals, such that all audio level
signals only connected to audio handling boards, etc.?
Ron W7HD
On 06/20/2018 04:40 PM, VK3HN wrote:
Hi Ron, Jack and
James.? 'Hambus' -- there's an idea.? Modules are common enough,
Mark at Minikits has a complete HF transceiver with header
connected modules, some (crystal filters, BPFs, LPFs) of which
stack.? These hint at a bus, with consistent assignments of power,
control and signal lines to specific pins.? Other projects have
pluggable daughterboards (the venerable Sierra's neat band
plugins, for example).??
The idea of a universal bus is appealing. In computer tradition,
the Hambus could be standardised and managed as a product in its
own right. Modules could then be designed for Hambus versions.
Imagine mixing and matching homebrew and vendor modules on a
Hambus.? Layout would be important for screening and short paths,
but? James' suggested 20 double 0.1 headers should be enough
separation.? Perhaps some strategically placed jumpers on certain
bus lines (audio, RF) could trim signal bus lines for better
isolation.?
First problem to solve -- how do you get physical strength when
you edge mount a vertical board on a double row 0.1 header?? Slide
the board between the two rows, bend pins in, solder both sides???
Minikits M1:
--
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter
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Re: I'm really stuck! No Xmit Pwr.
#ubitx
Chip,
Attached pdf file of RMS and DC voltages
in?a working?RF section that was put?on the board sometime after
the first of the year.? I believe either Glenn VK3PE?or Jerry
KE7ER?made it just can't remember who for certain.? Any way hope it
helps in your trouble shooting and no xmit pwr.
?
Rick
KN4AIE
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I find the CW sidetone on my uBitX V3 to be annoyingly loud. Any suggestions on how to quiet it down? I'm running Ian's 1.08 firmware.
Thanks...? ? ? Mark? ? AA7TA
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Ashhar and the group,
I am very happy with my ?Bitx other than getting my butt kicked trying to work digital. The only problems I've had with mine have mostly been self caused. Yes the power is uneven as delivered. Show me a better deal in a SSB/CW transceiver and I'll buy it next instead of another ?Bitx. My Heathkit HW-8 cost more as a kit and when I sold it on EBay about a year before I decided to get back into ham radio. Yes I screwed up!
On Wed, Jun 20, 2018 at 7:41 PM, Arv Evans <arvid.evans@...> wrote: Blame your own country postal or package delivery service.?
_._
They sold the kits, who else should I blame for damage in transit?
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Re: Homebrew from scratch
#ubitx
Hi Ron, Jack and James.? 'Hambus' -- there's an idea.? Modules are common enough, Mark at Minikits has a complete HF transceiver with header connected modules, some (crystal filters, BPFs, LPFs) of which stack.? These hint at a bus, with consistent assignments of power, control and signal lines to specific pins.? Other projects have pluggable daughterboards (the venerable Sierra's neat band plugins, for example).??
The idea of a universal bus is appealing. In computer tradition, the Hambus could be standardised and managed as a product in its own right. Modules could then be designed for Hambus versions. Imagine mixing and matching homebrew and vendor modules on a Hambus.? Layout would be important for screening and short paths, but? James' suggested 20 double 0.1 headers should be enough separation.? Perhaps some strategically placed jumpers on certain bus lines (audio, RF) could trim signal bus lines for better isolation.?
First problem to solve -- how do you get physical strength when you edge mount a vertical board on a double row 0.1 header?? Slide the board between the two rows, bend pins in, solder both sides???
Minikits M1: https://www.minikits.com.au/m1-transceiver.htm
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Skip Davis
VK3HN