Date   
Re: UBitx v5 Not Saving Calibration or BFO adjustments with CEC v 1.20 Nextion

jsternmd
 

I cannot find a manual for Memory Manager only the little mentioned in the CEC firmware 1.072 manual.  How do you calibrate with Memory Manager?   For example, my VFO frequency is always 1.5kHz off, how would I use Memory Manager, by changing the Master Calibration value?  Are these in Hz or other units?

 

Jerry

 

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Evan Hand
Sent: Tuesday, July 9, 2019 2:20 AM
To: BITX20@groups.io
Subject: Re: [BITX20] UBitx v5 Not Saving Calibration or BFO adjustments with CEC v 1.20 Nextion

 

Have you tried the MemoryManager program from CEC?  It is how I have done calibration when using the CEC software,

73
Evan
AC9TU

Re: uBitx Blowing Fuse on 20 Meters

Curt
 

Scot

that sounds like an excellent idea to back down on the primary drive control -- yes RV1.  your signal should be cleaner if you can get the 40m output down to say 7 watts or less.  most power meters (even the WM2 I use) can't be trusted to extreme accuracy.  a factor of 2 in output power is about one half a S-unit -- so better to be more clean. 

I am very surprised to blow the fuse into a (hopefully) 50 ohm load.  possibly a higher current fuse is encouraged.  I don't myself see danger is using a fuse that is 2X the expected current.  most of the time I use a ~ 3 amp power supply to feed by ubitx.  not sure what fuse Sunil supplies but that is what I have in place. 

there is a greatly diminishing return on output power versus DC supplied -- if you ever operate using battery - less drive via RV1 is highly preferred - with little loss on the receive end. 

73 Curt

Re: uBitx Blowing Fuse on 20 Meters

Scot McMath
 

Thanks Curt,
I was surprised myself about the output. I'm going to dial back RV1 as you suggest and try a 3 amp fuse.

Scot WB7AVU

Re: uBitx not receiving well on CWU or CWL

derek (G4VWI)
 

Hi Mike.

Many thanks for your response.

Quite a few special event stations on 40mtrs today with frequencies logged on the cluster.
I have adjusted the CW RX BFO settings and there is no difference (other than a frequency display change of 700Hz) to the tone received when changing from LSB to CWL. Your setting of 11.055.105 put me in the right ball park. Thanks.
The signals are nicely peaked using my narrow 700Hz CW filter now and this matches signals on the main Icom rig now.
For others setting this don't forget to press PTT momentarily to save your settings!

73 Derek G4VWI.

Re: uBitx Blowing Fuse on 20 Meters

 

As far as I remember, a fuse at the rated current should hold out for 10 hours and blow at
double the current with some seconds depending whether it is Slo-Blow, normal or fast blow.

Raj


At 09/07/2019, you wrote:
Scot

that sounds like an excellent idea to back down on the primary drive control -- yes RV1.  your signal should be cleaner if you can get the 40m output down to say 7 watts or less.  most power meters (even the WM2 I use) can't be trusted to extreme accuracy.  a factor of 2 in output power is about one half a S-unit -- so better to be more clean. 

I am very surprised to blow the fuse into a (hopefully) 50 ohm load.  possibly a higher current fuse is encouraged.  I don't myself see danger is using a fuse that is 2X the expected current.  most of the time I use a ~ 3 amp power supply to feed by ubitx.  not sure what fuse Sunil supplies but that is what I have in place. 

there is a greatly diminishing return on output power versus DC supplied -- if you ever operate using battery - less drive via RV1 is highly preferred - with little loss on the receive end. 

73 Curt

ce v1.2 on a ubitx v5

Nick Tile
 

I've been trying to get Ian's firmware running on a uBitx V5 by loading it to a new Nano to replace the one supplied in the raduino - the firmware loads ok, but when I swap the Nano, its dragging the supply to the display down as though there's a short (the regulator on the raduino gets very hot very quickly). 

I've tried loading various versions of the firmware in case I have a different display - I don't think I have, its a standard 1602 16 x 2 but to no avail so I wondered if there's something really obvious that I'm missing.The "new" nano loads ok so I thinks its alright and the radio is fine with the standard supplied nano.

Bit puzzled ...

Re: ce v1.2 on a ubitx v5

Nick Tile
 

belay my last - I spotted my idiot mistake - sorted !!

WSTX/Cat control after multiple attempts frequency Red 0.000.000

Mark Hatch
 

Hi,

Just got my ubitx working with a single USB cable and internal hub with usb sound card. No problem making QSO's and signal reports are fine. 

I am running the latest CEC software and Omnirig too.

"Occasionally", after lots of attempts to contact another station, (i.e. WSJT watchdog is about to go off), the frequency displayed in WSJT changes to "0.000.000" and is of course in "Red" indicating that WSJT is not happy with the frequency. However, the frequency on my ubitx remains correct and I have even completed a QSO in such a situation (had to fix the logbook entry afterwards)

I am guessing it is sometime of timeout error. I currently have Omnirig set at FT-817 with Poll of 500ms and Timeout of 4000ms.

Anybody else seen this issue and have a suggestion on a solution?

Thanks

73
Mark
AJ6CU

Re: ce v1.2 on a ubitx v5

KD2QMZ
 

If you are using a Nextion display, remember that depending on the size, those draw more current, so it is recommended an additional regulator on the case.


On Wed, Jul 10, 2019 at 11:32 AM Nick Tile <juggie@...> wrote:
belay my last - I spotted my idiot mistake - sorted !!

Re: WSTX/Cat control after multiple attempts frequency Red 0.000.000

Doug W
 

On Wed, Jul 10, 2019 at 12:00 PM, Mark Hatch wrote:
I am running the latest CEC software and Omnirig too.
Have you tried removing Omnirig from the equation?  I am using CAT control direct in WSJT and have never experienced the problem you describe.  I realize "It works for me" is typically a useless and frustrating response but other than Omnirig it sounds like our setups are similar.  I'm a fan of removing one variable at a time when troubleshooting.
 
--
www.bitxmap.com

Re: WSTX/Cat control after multiple attempts frequency Red 0.000.000

Mark Hatch
 

Doug,

Good suggestion. Haven't seen the error in last 12 hours since I changed Split operation to None in WSJT. Although I am using Log40M and it likes to know that VFO, it really doesn't have too... (That is the reason for the use of Omnirig, but could also create a virtual port too.)

73
Mark 

Re: kit-projects.com AGC Question - Missing C3?

Ted
 

"Looking at the picture it appears that you have not attached the switch. Without a discharge path from the common (S meter, AGC voltage) to ground then C6 will remain charged and the attenuating transistors will be actively reducing your signal. IMHO.
Sorry about not catching this thread earlier, Jerry. I was replying to the emails.
73,
Don"

So if I'm not using the s-meter output of this AGC board, should I ground that tab or use a specific level of resistance rather than leave it open?



73,
Ted

Re: kit-projects.com AGC Question - Missing C3?

KE2GKB
 

As long as you have wired up the switch per our diagrams you are good! The switch in the off position has the pad grounded. And fast and slow have different resistances. So if your not using the S-Meter just leave it floating as its already handled via the switch :)

73

-- Tim Keller - KE2GKB https://shop.kit-projects.com

question about current after building the DC connector

nomadg360@...
 

All the documentation I have seen says you should bet around 100 MA of current when you first connect the power connector to the board.  I am seeming about .50 MA   Is this a problem?

Re: Is there Nextion 5" firmware for Basic LCD NOT Enhanced?

John Ferguson (G8STW)
 

Re: question about current after building the DC connector

_Dave_ K0MBT
 

.5ma?

Re: question about current after building the DC connector

 

You need to be more specific.

Have you switched it ON ? Looks like it not!

Are you measuring on the center pin (Should be Brown) of power supply connector which goes to TX finals or the wire that goes to the
rest of the circuit (Should be Red) ?

The center pin on the board will show no current while in RX mode.

Raj

At 11/07/2019, you wrote:
All the documentation I have seen says you should bet around 100 MA of current when you first connect the power connector to the board. I am seeming about .50 MA Is this a problem?

Re: ce v1.2 on a ubitx v5

Bill Lamm
 

Do share for the next guy with same problem :-)

Re: ce v1.2 on a ubitx v5

Ian Reeve
 

In my ubitx I have a 3.5" Nextion display and find the onboard 5v regulator with a finned Heatsink manages OK.Gets warm but not too hot to touch,a external chassis mounted 5v regulator would be a better option,just remember to fit filter ceramic caps on input and output. 



From: BITX20@groups.io <BITX20@groups.io> on behalf of Bill Lamm <kd9mdl@...>
Sent: Thursday, July 11, 2019 3:15:08 PM
To: BITX20@groups.io
Subject: Re: [BITX20] ce v1.2 on a ubitx v5
 
Do share for the next guy with same problem :-)

Re: uBITX V3 for sale

Mike Wilson
 

Hi Balsun,

I will look into the shipping costs, and get back to you.

73s
VE3WMJ
Mike 


From: BITX20@groups.io <BITX20@groups.io> on behalf of Balasubramanyan Cp <bsnvu2yc73s@...>
Sent: July 9, 2019 5:28 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX V3 for sale
 
OM Mike,
Please let me know if I face shipping charges, you can send the shown items to me to Kerala, INDIA address?
If so in toto how much $ I have to send to you?
Please reply to my email address bsnvu2yc73s@...
73s VU2UYC Balsun

On Fri, Apr 12, 2019 at 3:31 AM <ve3wmj@...> wrote:
I have a uBITX version 3 board for sale. It is complete, and has not been modified. It includes a Nextion 3.2" display, a 12v 5a power supply, an additional 5v regulator board that can be used to power the 3.2 inch display, and an additional 10k pot with a knob.
Everthing you see in the picture below is included. I did not complete building the kit, but did do enough to power it up and test it on receive. You will need to swap the wires on the encoder as I have it wired backwards.
I am asking $120 US plus shipping. Will ship to Canada or USA.
Email me at my call sign at hotmail.com for more info.

Mike
VE3WMJ