Date   
Re: Remote access - I want to connect ubitx to Raspberry PI and remote in #remoteaccess

Evan Hand
 

I would start with a search for VNC on Raspberry PI.  The Raspian software comes with the VNC server installed, it just needs to be enabled.

You will also need the viewer (used to be client for us old dogs) to load on to  your "remote" device (assume laptop).  Here again I would look on the internet for the download, one is through RealVNC.com

Here is the Raspberry Pi Org link:
https://www.raspberrypi.org/documentation/remote-access/vnc/

I would make sure that it works inside your network first, before then setting up your router to forward the VNC port so that you can connect from anywhere on the Net.

Here is the Realvnc link for Windows (though there is a link for the other OSes as well):
https://www.realvnc.com/en/connect/download/viewer/windows/

If you are not sure on port forwarding, I again would look up instructions for you router on the internet.  That tends to be somewhat specific, so cannot provide a link for your router.

When you do open your network to the internet, be SURE you have strong passwords configured in the VNC software, Router Admin, and the Raspberry Pi.

Above are things to do until Don can get back to you with more specific advise as I have not connected to my uBitx, though have done the VNC on Raspberry Pi.

FWIW and YMMV
73
Evan
AC9TU

Re: Remote access - I want to connect ubitx to Raspberry PI and remote in #remoteaccess

Don - KM4UDX
 

Doug — I've never used VNC/Port Forward omg. For the currently clueless, what would be best next steps?

Re: Antuino 2.0

Rob Bleumer
 

Hi all,
I do not talking about the genetal enclosure but inside the enclosure protect AD8307 and the 25Mhz filters and amplifiers with an extra hf shielding.
Rob PA0RBL

Re: [UNTRIED IDEA] Bitx40 conversion for 6 & 2 metres #bitx40 #6meters

Kelly Jack
 

I have a spare bitx40. I also have other 40m qrp portable radios cw and ssb. Id like to get on 2m ssb/cw. I do not have a 10m rig. The choice is to either mod the transverter to use a 7mhz transceiver as the IF or mod the bitx40 to 10m. It seems easier to mod the transverter and I can likely use one of the spare raduino outputs for the new LO required for the transverter  or maybe a progrock from qrplabs. And I would still have a 40m radio that is otherwise useful rather than a 10m rig which isn't going to be doing much at this point in the cycle.

Is a 7mhz IF for 2m going to put the image too close to the desired signal on one of those Ukrainian transverters?

73

Simon
VK3ELH

Re: Ubitx transmission on USB instead on LSB

KD2QMZ
 

Automatically it does that, as the ham use it that way. There may be a programming mode change in code or a disable / enable function.


On Fri, Jul 5, 2019 at 2:48 AM <bijuapkrcl@...> wrote:
In my ubitx v4.3, i uploaded the KD8CEC 1.08 version to a new arduino and inserted. Calibration kept at 22 and bfo set on 11.997.975.
Reception is good , on exact frequency but transmission goes on USB on 40m.. which I set the mode LSB.
What to do??

Thanks in advance.
de VU2TDD

Re: [UNTRIED IDEA] Bitx40 conversion for 6 & 2 metres #bitx40 #6meters

Karl Heinz Kremer, K5KHK
 

The problem is that the Bitx40 (as referenced in the subject of this thread) only does 40m, so a transverter with a 28MHz IF would not work. 
--
Karl Heinz - K5KHK

Re: [UNTRIED IDEA] Bitx40 conversion for 6 & 2 metres #bitx40 #6meters

MadRadioModder
 

Why?  Whats the problem with 28MHz?

 


On Jul 5, 2019, at 7:15 AM, Kelly Jack <kellyjack1968@...> wrote:

Would 7mhz be too low as an IF for a transverter for 2m? What about 6m?

Im thinking 130mhz (LO - IF) might be too close to desired RF of 144. 14MHZ separation at 144mhz only 10% difference.

Obviously 6m would be relatively further away.

What are the rules of thumb for choosing an IF?
filtering is a factor of course but at some point filter performance needs to be too good to make it more practical to choose a different IF.

Looking for a use for a spare bitx40 I have and thinking about modding one of those Ukrainian transverters to use IF 7 instead of 28mhz.

73

Simon
VK3ELH

--

…_. _._

Re: 2m under threat for Thales

Laurence Oberman
 

If we have ARES and RACES members who use those frequencies during
hurricanes and other natural disasters to assist the public they
should all reach out in to their appointed political representatives,
congressman etc.

I know VHF depends on repeaters etc and in natural disasters those are
also affected but many have battery backup etc. and have been useful
in the past.

I know this started in Europe so not sure who the European HMS need to
press on this.

Regards and 73
KB1HKO
Laurence

On Wed, Jul 3, 2019 at 4:31 PM Lawrence Galea <9h1avlaw@...> wrote:

ps and other social media


On Wed, Jul 3, 2019 at 10:30 PM Lawrence Galea <9h1avlaw@...> wrote:

Spread the word as much as you can especially on facebook


On Wed, Jul 3, 2019 at 9:04 PM KD2QMZ <syracusepro@...> wrote:

From the ARRL:

http://www.arrl.org/news/restraint-urged-in-response-to-2-meter-reallocation-proposal


On Wed, Jul 3, 2019 at 11:21 AM Curt via Groups.Io <wb8yyy=yahoo.com@groups.io> wrote:

After reading I concur that this spectrum threat will be sufficiently addressed, if it goes anywhere at all. I think I am remembering that many nations only have amateur spectrum up to 146 MHz? In the US maybe 2/3rd of our repeaters may be above 146 MHz.

Indeed 25-30 years ago in the US the 2m band was often full of signals, voice and packet radio. Dense areas were using 222 and 440 MHz because repeaters were said to be full (maybe allocations more than actual use?). of course this was pre-internet for most of us.

2m spectrum is still vital but much quieter here in eastern US - glad to hear at least one area of the UK has it busy on a repeater. given spectral scarcity and our collective use - heresy maybe - but I wonder if 2 MHz might be enough spectrum now. non-FM uses are happy with thin slices throughout the spectrum. but a huge headache to relocate a vast number of repeaters.

Let's see we have less than 6 years to start using the 2m spectrum a lot more!

73 Curt

Re: [UNTRIED IDEA] Bitx40 conversion for 6 & 2 metres #bitx40 #6meters

Lawrence Galea
 

Use the Unranian xvrrts at 28 MHz


On Fri, Jul 5, 2019 at 2:15 PM Kelly Jack <kellyjack1968@...> wrote:
Would 7mhz be too low as an IF for a transverter for 2m? What about 6m?

Im thinking 130mhz (LO - IF) might be too close to desired RF of 144. 14MHZ separation at 144mhz only 10% difference.

Obviously 6m would be relatively further away.

What are the rules of thumb for choosing an IF?
filtering is a factor of course but at some point filter performance needs to be too good to make it more practical to choose a different IF.

Looking for a use for a spare bitx40 I have and thinking about modding one of those Ukrainian transverters to use IF 7 instead of 28mhz.

73

Simon
VK3ELH

Re: [UNTRIED IDEA] Bitx40 conversion for 6 & 2 metres #bitx40 #6meters

Kelly Jack
 

Would 7mhz be too low as an IF for a transverter for 2m? What about 6m?

Im thinking 130mhz (LO - IF) might be too close to desired RF of 144. 14MHZ separation at 144mhz only 10% difference.

Obviously 6m would be relatively further away.

What are the rules of thumb for choosing an IF?
filtering is a factor of course but at some point filter performance needs to be too good to make it more practical to choose a different IF.

Looking for a use for a spare bitx40 I have and thinking about modding one of those Ukrainian transverters to use IF 7 instead of 28mhz.

73

Simon
VK3ELH

Re: Newby - uBitx powers on but no Rx

Evan Hand
 

adrianabshire,

First off, can you tell us the version that you have?  It is printed on the board.

Second, I would first verify that the RF sections are working to some extent.  That is easiest done by connecting and disconnecting a long wire to the antenna connection.  You should hear a distinct change in noise level.  Very quiet without the antenna, and loud hissing with it.

If that tests works, then it is most likely an alignment issue.  Here it is very important that we know which version you have as the newest version will go into transmit mode during calibration.

Try the above and get back to us with the results and the version number.

73
Evan
AC9TU 

Re: Antuino 2.0

David Wilcox
 

The Antuino that Farhan sold at FDIM comes in a metal case.  I have no stray RF in my shack..... all xcvrs are turned off when using the Antuino.  Mine runs from internal battery power so no power supply noise.  Keep the suggestions coming.  It is a neat idea and is accurate (compared to my other analyzer) when it settles down.  I just put a dummy load on it and turn it off and on until it reads 1:1.  Sometimes it never does so I shut it off and do other things.  The next day it works again.

David J. Wilcox K8WPE’s iPad

On Jul 4, 2019, at 9:40 AM, Rob Bleumer <rob.bleumer@...> wrote:

HI all,
I had the experience that the AD8307 is verry sensitive to HF signals. For my sweeperino I had to protect it by puting it in a shielded box. Even my WSPR transmitters 0.2W were disturbing the messurements in my shack with mij Sweeperino build with RAZZIES solution of dragons . Here I see no protection at all and many HF signals coming from SI5351.
I propose puting it in a seperate shielded compartment even so the 25Mhz filters to avoid problems.
Rob PA0RBL

Re: Ubitx transmission on USB instead on LSB

 

Your BFO frequency 11.998 is in the pass band almost to the opposite side. So I would expect the wrong side band.
Change to 11.9965 and check.

Raj

At 05-07-19, you wrote:
In my ubitx v4.3, i uploaded the KD8CEC 1.08 version to a new arduino and inserted. Calibration kept at 22 and bfo set on 11.997.975.
Reception is good , on exact frequency but transmission goes on USB on 40m.. which I set the mode LSB.
What to do??

Thanks in advance.
de VU2TDD

Ubitx transmission on USB instead on LSB

Biju Apkrcl
 

In my ubitx v4.3, i uploaded the KD8CEC 1.08 version to a new arduino and inserted. Calibration kept at 22 and bfo set on 11.997.975.
Reception is good , on exact frequency but transmission goes on USB on 40m.. which I set the mode LSB.
What to do??

Thanks in advance.
de VU2TDD

Re: Newby - uBitx powers on but no Rx

Nigel G4ZAL
 

Make sure the speaker connector on your guitar amp is using a 3 pole stereo plug and not a 2 pole mono plug.
It has been known that using a 2 pole connector can damage the rig.

Nigel - G4ZAL

Re: Catching Up #firmware

Mark Hatch
 

My comment on the 5” should have been a 2.8 *without any scaling*

mark

Re: Catching Up #firmware

Mark Hatch
 

David

ubit.net lists a 4.3 Nextion file for the latest version of kd8cnc ‘s software. But I suspect you already saw this

i had had assumed everything was fine with the existence of the 5” file. But later found out that it was basically the 2.8 compiled for the 5” with scaling. (Hence the investment I made into getting the 5” updated) 

one thought would be to be to load the 4.3 that they provide (need the hmi file) into the Nextion editor and see if it was scaled and each page was the proper resolution for a 4.3 or just a smaller size compiled for the 4.3. 

I could get to this next week after the holidays if you would like. Just need pointer to the hmi file to look at. 

Mark

Re: Newby - uBitx powers on but no Rx

Curt
 

Try some headphones,  and look for signals on both 20 and 40 meters. Tune slowly. The receive audio isn't robust, which is why I suggest headphones. Also possible BFO calibration is way off. But try some more first.

Curt

Catching Up #firmware

 

I had to set aside my uBitx project since last Summer. Picking it up again, I want to add the SWR sensor to my 4.3 Nextion Display. I am currently running firmware version 1.095. Do I understand correctly that I need to upgrade to at least 1.097 to get the I2C Type Stand Alone Signal Analyzer Firmware V0.7+ necessary for the SWR display to work? If so, does 1.097 or newer still support the 4.3 Nextion Display (i.e., Nextion NX4827T043)? I cannot find any documentation regarding this. Thanks for any help the group may offer.

David Posthuma. WD8PUO

Re: Newby - uBitx powers on but no Rx

Clark Martin
 

If you are in or near the US, try tuning in WWV on any of it’s frequencies.

Clark Martin
KK6ISP

On Jul 4, 2019, at 5:14 AM, adrianabshire@... wrote:

I’m a definite newby to all of this.  I have two uBitx radios and both pretty much do the same thing. 
I get power to the radio - LED display lights up and shows the display correctly.  If I plug in a speaker (using a guitar amp for testing) I get some static and when I run the channels up/down I can hear some hissing and other noises.  
I believe I have wired the radio up correctly and have a 20-meter J-Pole antenna (not hung in a tree yet) that is extended out on the floor in the room.  Not sure how to really test that the radio will receive - I will wait to receive something before transmitting.  Is there an app or program that would show me chatter on a particular 20-meter station so I know exactly which frequency to put in? I’m new here so my knowledge of the lingo (both HAM and electrical) is limited but I’m learning tons every day!  Thanks for such a great forum!
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