Date   

Re: Xcvr's for sale

Jack, W8TEE
 

Mornin' Ted:

The Organic 5 Watter already sold. I'll refund your payment today.

Jack, W8TEE

On Thursday, January 7, 2021, 6:03:48 AM EST, Ted via groups.io <k3rta@...> wrote:


PayPal sent for Organic 5-watter.

--
Jack, W8TEE


Re: GPSDO ubitx ?

Rafael Diniz
 

Hi Ashhar,

Is there a way to know if the Si5351 correct got the 25 Mhz input?

I still did not do the 10 MHz to 25 MHz circuit (I bought a GPSDO with
10Mhz output from ebay). Any way I can buy a 10 MHz to 25 MHz
transverter already assembled?

Regards,
Rafael

On 11/19/20 12:48 AM, Ashhar Farhan wrote:
I tried something a year ago or so. I was attempting to reduce the
phase noise on Si5351 using an external oscillator instead of the
internal oscillator.
So, this is how it worked. 
1. You take a 10 MHz TCXO, (subsitute this with a GPS source for a
GPSDO) and divide it by 2 in a 74HC74. The output is rich in harmonics
at 5 MHz.
2. You feed the 5 MHz square wave into a triple tuned bandpass filter
at 25 mhz to isolate the 5th harmonic. This will be weak, add an
amplifier of 16 db to bring it up.
3. Feed this to the xin input of the Si5351.
Now, your Si5351 is GPS disciplined.

On Thu 19 Nov, 2020, 7:35 AM Rafael Diniz, <rafael@rhizomatica.org
<mailto:rafael@rhizomatica.org>> wrote:

Very interesting Jason! Tks!

Rafael

On 11/17/20 10:47 AM, Jason Pirok wrote:
> I just bought one of the VFO/SigGen kits from QRP-Labs and they
> already have a GPS disciplined option for it if you want to try it
> out. It is only 1PPS but apparently does the job. I haven't built my
> GPS kit yet so I can't give any personal details atm. You have to
> provide the 5v supply on your own so that is some extra work.
>
> Just a thought in case you hadn't seen that project yet.
>






Re: unboxing the ubitx v6

Rafael Diniz
 

Thanks Rubens. I just connected the 13.8V to the center, and the
negative to outer, and it is working fine!

Rafael

On 1/7/21 10:47 AM, Rubens Kamimura wrote:
Olá Rafael.

Melhor verificar antes de ligar. 
Verifique a continuidade para chassis (o negativo).
Uso uBITX v4, o meu tem três pinos, um dos lados é o negativo, o do
meio  +13,8Vcc ou Power TX, e o outro da extremidade é o +12Vcc.

--
73's PY2PVB

Rubens Kamimura
Técnico em Eletrônica e Eletrotécnica
CFT/CRT-SP: 80254934820
Cel. +55 (18) 9-9819-2225 WhatsApp


Em ter., 5 de jan. de 2021 às 20:28, Rafael Diniz
<rafael@rhizomatica.org <mailto:rafael@rhizomatica.org>> escreveu:

Hi there,

I bougth a ubitx v6 basic kit, and I'm wondering what to do with
the two
parts cut with the shape of the ubitx? It there a "case guide" on how
can I get my ubitx in a nice casing?

And btw, in the 12v jack, the positive is the center, and negative the
outer side of the jack, right?

Yay! I'll be on air soon.

Rafael PU2UIT








Re: unboxing the ubitx v6

Rubens Kamimura
 

Olá Rafael.

Melhor verificar antes de ligar. 
Verifique a continuidade para chassis (o negativo).
Uso uBITX v4, o meu tem três pinos, um dos lados é o negativo, o do meio  +13,8Vcc ou Power TX, e o outro da extremidade é o +12Vcc.

--
73's PY2PVB

Rubens Kamimura
Técnico em Eletrônica e Eletrotécnica
CFT/CRT-SP: 80254934820
Cel. +55 (18) 9-9819-2225 WhatsApp


Em ter., 5 de jan. de 2021 às 20:28, Rafael Diniz <rafael@...> escreveu:

Hi there,

I bougth a ubitx v6 basic kit, and I'm wondering what to do with the two
parts cut with the shape of the ubitx? It there a "case guide" on how
can I get my ubitx in a nice casing?

And btw, in the 12v jack, the positive is the center, and negative the
outer side of the jack, right?

Yay! I'll be on air soon.

Rafael PU2UIT








Re: unboxing the ubitx v6

Alessandrochiste@...
 

the rectangle shaped parts are 17.6 cm by 8.3cm (front and back panels),
and the distance between front and back is 17cm.
Thank you!


BITX20] FETs on sale

Bob Lunsford
 

Saw these, may be of interest...

Pack of 10 - IRF3205 N Channel FET Transistor 55V
sale price $2.95




Re: WSJT-X 2.2.2

Rubens Kamimura
 

Group,

I stopped using the program, as it is incompatible with my uBITX v4.
73's de Rubens py2pvb
--
73's PY2PVB

Rubens Kamimura
Técnico em Eletrônica e Eletrotécnica
CFT/CRT-SP: 80254934820
Cel. +55 (18) 9-9819-2225 WhatsApp


Em seg., 4 de jan. de 2021 às 14:32, Mark Erbaugh <mark.election@...> escreveu:

I've written custom firmware for the uBITX 6 and got the CAT interface working well with WSJT-X 2.1.2, using the FT817 configuration. I just tried WSJT-X 2.2.2 and it no longer works.  I see in the release notes that they updated Hamlib to a newer version and one of the specific notes was to make it work with the uBITX.

I didn't have time to fully debug the interface as I was setting up for the RTTY RU contest, but I notice that it's using a few more undocumented FT817 commands. Even after adding those commands to my CAT interface, I still had trouble getting it working. I had it working fairly well as long as I didn't restart the uBITX after uploading the sketch. It seems that uploading firmware resets something in the serial interface that isn't done after a normal power up. With 2.1.2, I was able to get the uBITX to reset by setting DTR high on the interface, but it looks like 2.2.2 is using DTR differently as my uBITX resets several times instead of once with 2.1.2.

73,
Mark, N8ME


Re: Xcvr's for sale

Ted
 

PayPal sent for Organic 5-watter.


Re: Xcvr's for sale

Ken Hansen
 

I can see why the herd needs thinning!

Ken, N2VIP

On Jan 6, 2021, at 22:19, Jack, W8TEE via groups.io <jjpurdum@...> wrote:


All:

Time to thin the herd: For Sale (shipping is CONUS):

Kits And Parts Organic 40M 5 Watter in case, as shown in my Oct., 2019, CQ Magazine article. (Kit cost without case $50.) Assembled with Apache case: $55.00 + $13.00

CRKits HT-1 40M/20M 5W transceiver. Assembled in case. (Kit cost $150.) Assembled with case: $125.00 + $13.00

WA3RNC 5W, 40M, Quick kit with case (Cost: $150). Assembled with case: $100.00 + $10.00

Wilderness Radio Norcal 40A (Kit cost $129.00) Assembled with case: $100.00 + $13.00

Frog Sounds 3W, 40M xcvr (similar to Forty-9er), Kit unassembled $10.00 + $7.00

QCX CW 5W xcvr 40M kit, unassembled: $50.00 + $7.00

QCX CW 5W xcvr 20M kit, unassembled: $50.00 + $7.00

2NJ/2XX 40M 5W CW xcvr, unassembled with case (case still in wrapping paper): $90.00 + $13.00

BITX40 40M xcvr kit, Version 3, unassembled: $40.00 + $10.00

PayPal only; shipping is the second price for CONUS. If there is multiple interest in a radio, first Paypal payment paid to econjack AT yahoo.com gets it. Please be sure to send shipping address.

I'll let people know about the sale tomorrow, if there are any buyers.

Jack, W8TEE


--
Jack, W8TEE


Xcvr's for sale

Jack, W8TEE
 

All:

Time to thin the herd: For Sale (shipping is CONUS):

Kits And Parts Organic 40M 5 Watter in case, as shown in my Oct., 2019, CQ Magazine article. (Kit cost without case $50.) Assembled with Apache case: $55.00 + $13.00

CRKits HT-1 40M/20M 5W transceiver. Assembled in case. (Kit cost $150.) Assembled with case: $125.00 + $13.00

WA3RNC 5W, 40M, Quick kit with case (Cost: $150). Assembled with case: $100.00 + $10.00

Wilderness Radio Norcal 40A (Kit cost $129.00) Assembled with case: $100.00 + $13.00

Frog Sounds 3W, 40M xcvr (similar to Forty-9er), Kit unassembled $10.00 + $7.00

QCX CW 5W xcvr 40M kit, unassembled: $50.00 + $7.00

QCX CW 5W xcvr 20M kit, unassembled: $50.00 + $7.00

2NJ/2XX 40M 5W CW xcvr, unassembled with case (case still in wrapping paper): $90.00 + $13.00

BITX40 40M xcvr kit, Version 3, unassembled: $40.00 + $10.00

PayPal only; shipping is the second price for CONUS. If there is multiple interest in a radio, first Paypal payment paid to econjack AT yahoo.com gets it. Please be sure to send shipping address.

I'll let people know about the sale tomorrow, if there are any buyers.

Jack, W8TEE


--
Jack, W8TEE


Re: Different Nano's

Mark Erbaugh
 

Dean,

 

Thanks. I’m mainly interested in setting up the timer directly and not relying on a library. It looks like there is some code worth studying in that first line.

 

73,

Mark, N8ME

 

 

 

From: Dean Souleles
Sent: Wednesday, January 6, 2021 3:10 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Different Nano's

 

On Tue, Jan 5, 2021 at 11:44 AM, Mark Erbaugh wrote:

But more severely, it failed on the low level writes that I was using to set up timers:

Hi Mark - I don't use timers in my code.  Did a quick search - you probably already found these - but for the thread...

  1. Arduino Nano Every - setting up timer interrupt ISR  
  2. GitHub - Kees-van-der-Oord/Arduino-Nano-Every-Timer-Controller-B: a drop in replacement for the TimerOne library for the Nano Every


Dean
KK4DAS

 


Re: Flash the arduino nano

Rafael Diniz
 

Tks,

I was the programmer type, I had to choose Arduino as ISP.

Rafael

On 1/6/21 11:54 PM, Reed N wrote:
If you're trying to program the Nano, you might try selecting the "old
bootloader" type selector.



Reed


Re: Flash the arduino nano

Reed N
 

If you're trying to program the Nano, you might try selecting the "old bootloader" type selector.



Reed


Re: WSJT-X 2.2.2

Dean Souleles
 

Update - 

I now believe I have serial I/O for CAT control working seamlessly on the Arduino Nano Every.   In short, the default parameters for the Nano Every serial port are 115200, N81  - if I set that in the firmware and set that in WSJTX and any other PC program, then  communication comes up and works fine.  Apparently what happens is if the firmware is set to anything other than that there is a serial port reset that occurs and that was apparently causing WSJTX to hang.  I still can't account for 100% of the behavior but limited testing so far - everything is working as expected.   

Thanks to everyone that contributed to the discussion  - sorry I kind hijacked Mark's thread. 

See this post and replies for more details ... https://groups.io/g/SoftwareControlledHamRadio/message/10062

Back to building radios...

73,
Dean
KK4DAS


Flash the arduino nano

Rafael Diniz
 

Hi all,

Do I need to buy some flasher equipment to change the firmware of the
arduino? I already compiled a new firmware based on the original with
gcc-avr, but avrdude always give me the same error when I try to flash:
avrdude: stk500_recv(): programmer is not responding


Thanks,
Rafael


Re: unboxing the ubitx v6

Rafael Diniz
 

the rectangle shaped parts are 17.6 cm by 8.3cm (front and back panels),
and the distance between front and back is 17cm.

Rafael

On 1/6/21 10:56 AM, Alessandrochiste@hotmail.it wrote:
Hi Rafael, my basic kit is on the way as well and i'm also researching
housing options.
I have a 3d printer and i'm planning to print what's missing of the
enclosure.
Would you kindly measure the two plexiglass parts for me? So that i
can see if they fit in any 3d printed model.

Thank You


Re: Mrf101 for sale

barry halterman
 

These have been sold. Thanks for allowing me to post.
Barry
K3bo

On Tue, Jan 5, 2021, 2:50 PM barry halterman via groups.io <kthreebo=gmail.com@groups.io> wrote:
Anyone interested in a pair of MRF101 power FETs. I have a pair of them, never used and in the original sealed packages from Mouser.
One is the AN the other the BN version. Asking $40 for the pair shipping included to conus.
I changed my plans for these devices, so they are surplus to my needs.
Contact me off the group.io


Re: Different Nano's

Dean Souleles
 

On Tue, Jan 5, 2021 at 11:44 AM, Mark Erbaugh wrote:
But more severely, it failed on the low level writes that I was using to set up timers:
Hi Mark - I don't use timers in my code.  Did a quick search - you probably already found these - but for the thread...
  1. Arduino Nano Every - setting up timer interrupt ISR  
  2. GitHub - Kees-van-der-Oord/Arduino-Nano-Every-Timer-Controller-B: a drop in replacement for the TimerOne library for the Nano Every

Dean
KK4DAS


Re: FOR SALE Ubitx ver 3 in nice metal case

Johnny AC0BQ
 

I also have the N8? Version of the AGC 
control unbuilt.
15.00 extra if you  buy the rig.
tnx
JohnnY ACØBQ 


Re: unboxing the ubitx v6

Jack, W8TEE
 

Evan:

The function can do away with the cascading if statement block several ways. You could use a switch/case statement block, but that still creates a jump table and redundant calls to digitalWrite(). See if this would work:

#define BAND15    0
#define BAND20    1
#define BAND40    2
#define BAND80    3

void setup() {
  Serial.begin(9600);
  setTXFilters_v5(BAND15);
}

void loop() {
  // put your main code here, to run repeatedly:

}

void setTXFilters_v5(int band)
{
  static int filterParameters[4][3] = {
    {0, 0, 0},  // 15M
    {1, 0, 0},  // 20M
    {0, 1, 0},  // 40M
    {0, 0, 1}   // 80M
  };
  digitalWrite(TX_LPF_A, filterParameters[band][0]);
  digitalWrite(TX_LPF_B, filterParameters[band][1]);
  digitalWrite(TX_LPF_C, filterParameters[band][2]);
}

This version uses no cascading if statement block so it should execute slightly faster. I doubt that it will save any memory because of the static array I've added.

Jack, W8TEE

On Wednesday, January 6, 2021, 11:36:25 AM EST, Rafael Diniz <rafael@...> wrote:


Thanks a lot Evan!!

I'll set the arduido development environment here and test with
different filter settings. I'll create a fork of the firmware for playing.

Cheers,
Rafael

On 1/6/21 8:35 AM, Evan Hand wrote:
> On Tue, Jan 5, 2021 at 07:49 PM, Rafael Diniz wrote:
>
>    Btw, I noticed I get zero output on 6.9MHz, and full power on
>    7100. Why?
>
> I believe it is due to this section of the v6.1 code where the low
> pass filter is selected:
>
> void setTXFilters_v5(unsigned long freq){
>   
>   if (freq > 21000000L){  // the default filter is with 35 MHz cut-off
>     digitalWrite(TX_LPF_A, 0);
>     digitalWrite(TX_LPF_B, 0);
>     digitalWrite(TX_LPF_C, 0);
>   }
>   else if (freq >= 14000000L){ //thrown the KT1 relay on, the 30 MHz
> LPF is bypassed and the 14-18 MHz LPF is allowd to go through
>     digitalWrite(TX_LPF_A, 1);
>     digitalWrite(TX_LPF_B, 0);
>     digitalWrite(TX_LPF_C, 0);
>   }
>   else if (freq > 7000000L){
>     digitalWrite(TX_LPF_A, 0);
>     digitalWrite(TX_LPF_B, 1);
>     digitalWrite(TX_LPF_C, 0);    
>   }
>   else {
>     digitalWrite(TX_LPF_A, 0);
>     digitalWrite(TX_LPF_B, 0);
>     digitalWrite(TX_LPF_C, 1);    
>   }
> }
>
> Note that there is a small bug in the above, as the 60/80 meter filter
> will be selected if the frequency is set exactly at 7MHz.  Not sure
> that anyone would run that close to the band edge, but it does mean
> that taking any measurements you would want to be at least a few hertz
> above 7MHz.  I would have made the compare >=.  The same is true for
> 15m (21MHz).
>
> You need to also take into account the sidetone offset when testing
> CW, as the actual carrier is shifted by the sidetone value.  Since I
> do not have a v6 I am not sure how the CWL or CWU mode is handled. 
> All of my uBITX have been converted to KD8CEC firmware.  To be safe,
> the best bet is to set a test frequency of 1kHz or more above the
> 21MHz and 7MHz filter selection points.
>
> 73
> Evan
> AC9TU
>






--
Jack, W8TEE

2561 - 2580 of 86800