Date   

Re: microphones

Matt Towe
 

IMHO ….. the problem isn’t the mic, it’s the antenna.
End feds are susceptible to rf problems …. Even more so when random length or not on the half wavelength. I would work on that first.


Re: Power for a UBitz v6 #power

Gary Dumbleton
 

Hi Max,

It sounds like your solar system larger than mine. I was building mine to just run my station and have  done that fine.  I am running a hamclock, raspberry pi, a bitx 6 and a Yaesu 450D.  It seems to do the job.  I also have an inverter.

My solar system is permanent and at my home station.

Here is the system that I have.     https://www.amazon.ca/gp/product/B00B8L8MD2/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

I connect the BITX and the Yaesu direct to the battery (fused of course). The hamclock and the raspberry pi is connected via the inverter to a power bar.

I have added another 2 panels so now have 4 panels.  I have 200 watts.  The battery I have is a Lead Acid deep cycle 12 Volt.  My panels are wired in Parallel.

The current conditions are full sun and the voltage on the meter on my system is telling me 14.4 volts and no additional noise or pulsing on the radios. 

The Charge controller is the Ronogy Wanderer, which is good for the 200 watts of panels.   https://www.renogy.com/wanderer-li-30a-pwm-charge-controller/
They have other charge controllers that you can check out.

You can reach the Renogy website here.    https://www.renogy.com/

It seems that one of the differences in our setups is that mine is parallel and yours is series.

I realize that my system is a lesser system than yours, however, I hope this helps.

Gary


On 7/26/2021 8:52 AM, Max via groups.io wrote:
Thanks for the info. Can you tell me more about your system, the number and size of your panels and the model of your controller and type of battery?

I currently have four 100 watt panels connected in series feeding a Rich solar 40A controller and a 100 amp lithium battery at home. 

I also have two 100 watt panels with a no name controller and 40 amp lithium battery for portable use.

They both make about the same amount and type of noise.

Thanks for any help,

Max KG4PID



On Monday, July 26, 2021, 07:35:11 AM CDT, Gary Dumbleton <gary@...> wrote:


Max,

My station  is completely solar and I am not having any known trouble with the charge controller.  My charge controller is about 5 feet from my station. I have an all band vertical and a windom. Whether it is charging or not, my S meter does not really change. Right now The sun is out and I am charging and making ft8 contacts on 20 and the band is quite active.  My solar system is Renogy.

Gary



On 7/25/2021 11:21 PM, Max via groups.io wrote:
I've done that also, but right now I don't have an AM radio to use. These solar charge controllers sure make a lot of noise. Why the FCC allows this is beyond me.

Max

On Sunday, July 25, 2021, 04:17:44 PM CDT, Arv Evans <arvid.evans@...> wrote:


Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more





Re: Power for a UBitz v6 #power

Gary Dumbleton
 

Hi Max,

It sounds like your solar system larger than mine. I was building mine to just run my station and have  done that fine.  I am running a hamclock, raspberry pi, a bitx 6 and a Yaesu 450D.  It seems to do the job.  I also have an inverter.

My solar system is permanent and at my home station.

Here is the system that I have.     https://www.amazon.ca/gp/product/B00B8L8MD2/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

I connect the BITX and the Yaesu direct to the battery (fused of course). The hamclock and the raspberry pi is connected via the inverter to a power bar.

I have added another 2 panels so now have 4 panels.  I have 200 watts.  The battery I have is a Lead Acid deep cycle 12 Volt.  My panels are wired in Parallel.

The current conditions are full sun and the voltage on the meter on my system is telling me 14.4 volts and no additional noise or pulsing on the radios. 

The Charge controller is the Ronogy Wanderer, which is good for the 200 watts of panels.   https://www.renogy.com/wanderer-li-30a-pwm-charge-controller/
They have other charge controllers that you can check out.

You can reach the Renogy website here.    https://www.renogy.com/

It seems that one of the differences in our setups is that mine is parallel and yours is series.

I realize that my system is a lesser system than yours, however, I hope this helps.

Gary

On 7/26/2021 8:52 AM, Max via groups.io wrote:
Thanks for the info. Can you tell me more about your system, the number and size of your panels and the model of your controller and type of battery?

I currently have four 100 watt panels connected in series feeding a Rich solar 40A controller and a 100 amp lithium battery at home. 

I also have two 100 watt panels with a no name controller and 40 amp lithium battery for portable use.

They both make about the same amount and type of noise.

Thanks for any help,

Max KG4PID



On Monday, July 26, 2021, 07:35:11 AM CDT, Gary Dumbleton <gary@...> wrote:


Max,

My station  is completely solar and I am not having any known trouble with the charge controller.  My charge controller is about 5 feet from my station. I have an all band vertical and a windom. Whether it is charging or not, my S meter does not really change. Right now The sun is out and I am charging and making ft8 contacts on 20 and the band is quite active.  My solar system is Renogy.

Gary



On 7/25/2021 11:21 PM, Max via groups.io wrote:
I've done that also, but right now I don't have an AM radio to use. These solar charge controllers sure make a lot of noise. Why the FCC allows this is beyond me.

Max

On Sunday, July 25, 2021, 04:17:44 PM CDT, Arv Evans <arvid.evans@...> wrote:


Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more





Re: Power for a UBitz v6 #power

Max
 

Thanks for the info. Can you tell me more about your system, the number and size of your panels and the model of your controller and type of battery?

I currently have four 100 watt panels connected in series feeding a Rich solar 40A controller and a 100 amp lithium battery at home. 

I also have two 100 watt panels with a no name controller and 40 amp lithium battery for portable use.

They both make about the same amount and type of noise.

Thanks for any help,

Max KG4PID



On Monday, July 26, 2021, 07:35:11 AM CDT, Gary Dumbleton <gary@...> wrote:


Max,

My station  is completely solar and I am not having any known trouble with the charge controller.  My charge controller is about 5 feet from my station. I have an all band vertical and a windom. Whether it is charging or not, my S meter does not really change. Right now The sun is out and I am charging and making ft8 contacts on 20 and the band is quite active.  My solar system is Renogy.

Gary



On 7/25/2021 11:21 PM, Max via groups.io wrote:
I've done that also, but right now I don't have an AM radio to use. These solar charge controllers sure make a lot of noise. Why the FCC allows this is beyond me.

Max

On Sunday, July 25, 2021, 04:17:44 PM CDT, Arv Evans <arvid.evans@...> wrote:


Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more




Re: Power for a UBitz v6 #power

Gary Dumbleton
 

Max,

My station  is completely solar and I am not having any known trouble with the charge controller.  My charge controller is about 5 feet from my station. I have an all band vertical and a windom. Whether it is charging or not, my S meter does not really change. Right now The sun is out and I am charging and making ft8 contacts on 20 and the band is quite active.  My solar system is Renogy.

Gary



On 7/25/2021 11:21 PM, Max via groups.io wrote:
I've done that also, but right now I don't have an AM radio to use. These solar charge controllers sure make a lot of noise. Why the FCC allows this is beyond me.

Max

On Sunday, July 25, 2021, 04:17:44 PM CDT, Arv Evans <arvid.evans@...> wrote:


Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more




Re: BitX40 from the grave

 

Vic,

Sounds like the VFO signal cable from Raduino is not connected properly.
Please check the leads. Specially the sheild.

Raj

At 26/07/2021, you wrote:
A number of years back I built a BitX40 and it worked well. I had to replace a driver when it failed in the presence of a strong RF signal, so I added the back-to-back diodes along with the repair, and adjusted the audio with the VK3YE mod. I used it for a while, but the relay failed (same one with the diodes) and I didn't have a way to remove multi-pin devices at the time, so I just got another BitX40 which I still use. Last winter a friend asked me to get it going and put it in a small box he had,so I had replaced the faulty relay, wired it up on the bench, and installed the Amunter upgrade sketch. It calibrated well and seemed to work fine...so I put it aside. Later, when I had some time and my friend had passed the "box" to me to fit the radio in, I wired it up on the bench again only to find it not working at all. No display other than a few flashes of the backlight, and the Raduino regulator was unusually hot. I painstakingly swapped the soldered in Arduino chip, but someth
ing was still amiss as the display was intermittent, so I ordered a new Raduino and went ahead and reprogrammed it for the Amunter sketch right away. Today I tried wiring it all up, again. The Raduino displays nicely and follows tuning input correctly and it goes into calibration when commanded. The audio output adjusts with volume, and closing the PTT contacts shifts the rig into transmit. That's about all that seems correct, but it is certainly NOT working. There are loud clicks with tuning, something that I have not seen with the Amunter sketch before, and it won't receive any signals when connected to an antenna. When it goes into transmit it generates white noise over most of the band, but no definitive signal is picked up on a receiver with a panadapter, just a jump in overall white noise. It acts like it just isn't generating the proper VFO output. I am tired of fiddling with it today, but thought I'd ask for some suggestions before I tackle it again.

=Vic=


Re: Power for a UBitz v6 #power

Max
 

I've done that also, but right now I don't have an AM radio to use. These solar charge controllers sure make a lot of noise. Why the FCC allows this is beyond me.

Max

On Sunday, July 25, 2021, 04:17:44 PM CDT, Arv Evans <arvid.evans@...> wrote:


Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more



Re: BitX40 from the grave

Ashhar Farhan
 

Are you able to receive any stations? The loud clicking sound maybe due to some ground loop around the Raduino.


On Mon 26 Jul, 2021, 12:20 AM Vince Vielhaber, <vev@...> wrote:
Resolder and check the connections on that relay you replaced.

Vince.

On 07/25/2021 02:47 PM, Vic WA4THR via groups.io wrote:
> A number of years back I built a BitX40 and it worked well. I had to
> replace a driver when it failed in the presence of a strong RF signal,
> so I added the back-to-back diodes along with the repair, and adjusted
> the audio with the VK3YE mod. I used it for a while, but the relay
> failed (same one with the diodes) and I didn't have a way to remove
> multi-pin devices at the time, so I just got another BitX40 which I
> still use. Last winter a friend asked me to get it going and put it in a
> small box he had,so I had replaced the faulty relay, wired it up on the
> bench, and installed the Amunter upgrade sketch. It calibrated well and
> seemed to work fine...so I put it aside. Later, when I had some time and
> my friend had passed the "box" to me to fit the radio in, I wired it up
> on the bench again only to find it not working at all. No display other
> than a few flashes of the backlight, and the Raduino regulator was
> unusually hot. I painstakingly swapped the soldered in Arduino chip, but
> something was still amiss as the display was intermittent, so I ordered
> a new Raduino and went ahead and reprogrammed it for the Amunter sketch
> right away. Today I tried wiring it all up, again. The Raduino displays
> nicely and follows tuning input correctly and it goes into calibration
> when commanded. The audio output adjusts with volume, and closing the
> PTT contacts shifts the rig into transmit. That's about all that seems
> correct, but it is certainly NOT working. There are loud clicks with
> tuning, something that I have not seen with the Amunter sketch before,
> and it won't receive any signals when connected to an antenna. When it
> goes into transmit it generates white noise over most of the band, but
> no definitive signal is picked up on a receiver with a panadapter, just
> a jump in overall white noise. It acts like it just isn't generating the
> proper VFO output. I am tired of fiddling with it today, but thought I'd
> ask for some suggestions before I tackle it again.
>
> =Vic=
>

--
         Michigan VHF Corporation -- nobucks dot net
               K8ZW - http://www.hamradio.fun






locked Antenna Tuner for uBITX V6 #ubitxv6 #off_topic #antennas

Aaron K5ATG
 

I'm just curious about what everyone uses for an antenna tuner if they even use one. I got one of the N7DDC ATU's did the QRP Mod and it got fried at field day. Since it came with a really nice case I saved the case and ordered an N7DDC in kit form. I put it together and it has never shown any signs of life. I'm now done with the N7DDC tuners and I lack the funds to keep on trying, Now I'm homebrewing an L Network Tuner from junk box parts. What tuner do you use and do you like it or not? 
--
'72
Aaron K5ATG


Re: Power for a UBitz v6 #power

Arv Evans <arvid.evans@...>
 

Max

In the bad old days we used to walk about our neighborhoods with a
multi-band portable radio and listen for static and stray RF.  Radios
with a loopstick antenna had directional capability that allow one to
locate the specific noise source.  Same thing can be done today but
it is not mentioned much anymore. 

Arv
_._


On Sun, Jul 25, 2021 at 7:30 AM Max via groups.io <kg4pid=yahoo.com@groups.io> wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. I am going to
acquire a loop probe
or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more



Re: Power for a UBitz v6 #power

Bill Cromwell
 

Hi Curt,

Even the reprobate supplies can be tamed if there is enough room inside for the filtering parts. Those parts could add enough to the cost to justify buying a clean one instead. Some of us have some junk to harvest for parts. More often we have everything but the parts we actually need:)

A hard lesson for me was replacing the power supply in a PC (years ago). The store sold me higher power supply for not much money. I don't have to tell you what happened when I turned it on next to my radios. I was able to harvest the filter parts from the deceased supply and install them in the silk-screened empty places where they live. Switch-mode supplies in wall warts may not have room inside for those parts.

73,

Bill KU8H

bark less - wag more

On 7/25/21 2:50 PM, Curt via groups.io wrote:
It was not my intent to reject all switching power supplies, see the on line reviews by AD5X on the samlex and other supplies intended for ham radio, his pictures show the substantial filtering inside. Nice tests conducted with a scope and a good ham receiver. Interesting question is whether the cores needed for these filters can be salvaged or bought cheaply, even better with all the wire in place.

Curt


Re: Power for a UBitz v6 #power

Max
 

Thanks, I ordered one. It won't be here for another month or so.

Max


On Sunday, July 25, 2021, 10:46:27 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi,

Amazon has one for five bucks.

https://www.amazon.com/Near%E2%80%91Field-Magnetic-Near-Field-Conduction-Radiation/dp/B08P56S6K8

On eevblog I found the attached DIY how-to graphic. I hope this helps.

73,

Bill  KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
> So where does one get a loop probe? I already have a TinySA and would
> love to be able to pinpoint the exact source of my noise.
>
> Max
>
> On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell
> <wrcromwell@...> wrote:
>
>
> Hi Gordon,
>
> Thanks for pointing at the Apple USB supplies. Some Apple gear has found
> it's way into my home and I have wondered about those. */I am going to
> acquire a loop probe/* or two for my tinySA and my SDR receiver to help
> ferret out sinful power supplies here. Yes, I have some too. They go to
> sleep when the grid goes down. I have turned off the whole house at the
> breaker box for no noticeable reduction in hash noise. I'm sure I will
> find any with those probes plugging and unplugging every power supply.
> That breaker doesn't stop the neighbors or those power lines in front of
> the house:)
>
> 73,
>
> Bill KU8H
>
> bark less - wag more

>
>
>






Re: BitX40 from the grave

Vince Vielhaber
 

Resolder and check the connections on that relay you replaced.

Vince.

On 07/25/2021 02:47 PM, Vic WA4THR via groups.io wrote:
A number of years back I built a BitX40 and it worked well. I had to
replace a driver when it failed in the presence of a strong RF signal,
so I added the back-to-back diodes along with the repair, and adjusted
the audio with the VK3YE mod. I used it for a while, but the relay
failed (same one with the diodes) and I didn't have a way to remove
multi-pin devices at the time, so I just got another BitX40 which I
still use. Last winter a friend asked me to get it going and put it in a
small box he had,so I had replaced the faulty relay, wired it up on the
bench, and installed the Amunter upgrade sketch. It calibrated well and
seemed to work fine...so I put it aside. Later, when I had some time and
my friend had passed the "box" to me to fit the radio in, I wired it up
on the bench again only to find it not working at all. No display other
than a few flashes of the backlight, and the Raduino regulator was
unusually hot. I painstakingly swapped the soldered in Arduino chip, but
something was still amiss as the display was intermittent, so I ordered
a new Raduino and went ahead and reprogrammed it for the Amunter sketch
right away. Today I tried wiring it all up, again. The Raduino displays
nicely and follows tuning input correctly and it goes into calibration
when commanded. The audio output adjusts with volume, and closing the
PTT contacts shifts the rig into transmit. That's about all that seems
correct, but it is certainly NOT working. There are loud clicks with
tuning, something that I have not seen with the Amunter sketch before,
and it won't receive any signals when connected to an antenna. When it
goes into transmit it generates white noise over most of the band, but
no definitive signal is picked up on a receiver with a panadapter, just
a jump in overall white noise. It acts like it just isn't generating the
proper VFO output. I am tired of fiddling with it today, but thought I'd
ask for some suggestions before I tackle it again.

=Vic=
--
Michigan VHF Corporation -- nobucks dot net
K8ZW - http://www.hamradio.fun


Re: Power for a UBitz v6 #power

Curt
 

It was not my intent to reject all switching power supplies, see the on line reviews by AD5X on the samlex and other supplies intended for ham radio, his pictures show the substantial filtering inside. Nice tests conducted with a scope and a good ham receiver. Interesting question is whether the cores needed for these filters can be salvaged or bought cheaply, even better with all the wire in place. 

Curt


BitX40 from the grave

Vic WA4THR
 

A number of years back I built a BitX40 and it worked well. I had to replace a driver when it failed in the presence of a strong RF signal, so I added the back-to-back diodes along with the repair, and adjusted the audio with the VK3YE mod. I used it for a while, but the relay failed (same one with the diodes) and I didn't have a way to remove multi-pin devices at the time, so I just got another BitX40 which I still use. Last winter a friend asked me to get it going and put it in a small box he had,so I had replaced the faulty relay, wired it up on the bench, and installed the Amunter upgrade sketch. It calibrated well and seemed to work fine...so I put it aside. Later, when I had some time and my friend had passed the "box" to me to fit the radio in, I wired it up on the bench again only to find it not working at all. No display other than a few flashes of the backlight, and the Raduino regulator was unusually hot. I painstakingly swapped the soldered in Arduino chip, but something was still amiss as the display was intermittent, so I ordered a new Raduino and went ahead and reprogrammed it for the Amunter sketch right away. Today I tried wiring it all up, again. The Raduino displays nicely and follows tuning input correctly and it goes into calibration when commanded. The audio output adjusts with volume, and closing the PTT contacts shifts the rig into transmit. That's about all that seems correct, but it is certainly NOT working. There are loud clicks with tuning, something that I have not seen with the Amunter sketch before, and it won't receive any signals when connected to an antenna. When it goes into transmit it generates white noise over most of the band, but no definitive signal is picked up on a receiver with a panadapter, just a jump in overall white noise. It acts like it just isn't generating the proper VFO output. I am tired of fiddling with it today, but thought I'd ask for some suggestions before I tackle it again.

=Vic=


Re: Power for a UBitz v6 #power

Bill Cromwell
 

Hi,

I think - if I understood what I read - that loop is probably a bit less sensitive and would be more useful for finding reprobate LED lights and sinful switch-mode power supplies - etc. I decided to buy one and not chop up any of my nice jumpers. The loop is much smaller and so can be maneuvered by wrist action to increase/decrease coupling.

73,

Bill KU8H

bark less - wag more

On 7/25/21 12:10 PM, Gordon Gibby wrote:
You’re welcome, Bill! That five dollar Amazon magnetic pick up looks very interesting. I wonder how it would compare to the tiny dipole that I created
On Jul 25, 2021, at 11:54, Bill Cromwell <wrcromwell@gmail.com> wrote:

Hi Gordon,

Thank you for posting that. When we instruments make measurements is better to have some idea what to expect so can interpret our results.

73,

Bill KU8H

bark less - wag more

On 7/25/21 11:17 AM, Gordon Gibby wrote:
You may want to look at this simple protocol, which has baseline data for comparison and a simple homebrew probe antenna.

https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf <https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf>

Provided your simple. spectrum analyzer is somewhere close to reasonable on its power measurements (at least within 10 DB), you could easily make the Antenna probe and have good comparison data.


On Jul 25, 2021, at 10:14, Bill Cromwell <wrcromwell@gmail.com> wrote:
by the way..some people have just used the small antenna that comes with the tinySA but the loop is less likely to overload the instrument - my own (mis)understanding. Easier to adjust the 'coupling' with a twist of the wrist.

73,

Bill KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@gmail.com> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. */I am going to
acquire a loop probe/* or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more







Re: Power for a UBitz v6 #power

Gordon Gibby
 

You’re welcome, Bill! That five dollar Amazon magnetic pick up looks very interesting. I wonder how it would compare to the tiny dipole that I created

On Jul 25, 2021, at 11:54, Bill Cromwell <wrcromwell@gmail.com> wrote:

Hi Gordon,

Thank you for posting that. When we instruments make measurements is better to have some idea what to expect so can interpret our results.

73,

Bill KU8H

bark less - wag more

On 7/25/21 11:17 AM, Gordon Gibby wrote:
You may want to look at this simple protocol, which has baseline data for comparison and a simple homebrew probe antenna.

https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf <https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf>

Provided your simple. spectrum analyzer is somewhere close to reasonable on its power measurements (at least within 10 DB), you could easily make the Antenna probe and have good comparison data.


On Jul 25, 2021, at 10:14, Bill Cromwell <wrcromwell@gmail.com> wrote:
by the way..some people have just used the small antenna that comes with the tinySA but the loop is less likely to overload the instrument - my own (mis)understanding. Easier to adjust the 'coupling' with a twist of the wrist.

73,

Bill KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@gmail.com> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. */I am going to
acquire a loop probe/* or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more








Re: Power for a UBitz v6 #power

Bill Cromwell
 

Hi Gordon,

Thank you for posting that. When we instruments make measurements is better to have some idea what to expect so can interpret our results.

73,

Bill KU8H

bark less - wag more

On 7/25/21 11:17 AM, Gordon Gibby wrote:
You may want to look at this simple protocol, which has baseline data for comparison and a simple homebrew probe antenna.

https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf <https://qsl.net/nf4rc/2019/AmbientNoiseMeasurementProtocol.pdf>

Provided your simple. spectrum analyzer is somewhere close to reasonable on its power measurements (at least within 10 DB), you could easily make the Antenna probe and have good comparison data.


On Jul 25, 2021, at 10:14, Bill Cromwell <wrcromwell@gmail.com> wrote:

by the way..some people have just used the small antenna that comes with the tinySA but the loop is less likely to overload the instrument - my own (mis)understanding. Easier to adjust the 'coupling' with a twist of the wrist.

73,

Bill KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@gmail.com> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. */I am going to
acquire a loop probe/* or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more





Re: Power for a UBitz v6 #power

Bill Cromwell
 

Hi,

Amazon has one for five bucks.

https://www.amazon.com/Near%E2%80%91Field-Magnetic-Near-Field-Conduction-Radiation/dp/B08P56S6K8

On eevblog I found the attached DIY how-to graphic. I hope this helps.

73,

Bill  KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@gmail.com> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. */I am going to
acquire a loop probe/* or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more



Re: Power for a UBitz v6 #power

Gordon Gibby
 

You may want to look at this simple protocol, which has baseline data for comparison and a simple homebrew probe antenna. 


Provided your simple. spectrum analyzer is somewhere close to reasonable on its power measurements (at least within 10 DB), you could easily make the Antenna probe and have good comparison data. 


On Jul 25, 2021, at 10:14, Bill Cromwell <wrcromwell@...> wrote:

by the way..some people have just used the small antenna that comes with the tinySA but the loop is less likely to overload the instrument - my own (mis)understanding. Easier to adjust the 'coupling' with a twist of the wrist.

73,

Bill KU8H

bark less - wag more

On 7/25/21 9:30 AM, Max via groups.io wrote:
So where does one get a loop probe? I already have a TinySA and would love to be able to pinpoint the exact source of my noise.

Max

On Sunday, July 25, 2021, 07:59:54 AM CDT, Bill Cromwell <wrcromwell@...> wrote:


Hi Gordon,

Thanks for pointing at the Apple USB supplies. Some Apple gear has found
it's way into my home and I have wondered about those. */I am going to
acquire a loop probe/* or two for my tinySA and my SDR receiver to help
ferret out sinful power supplies here. Yes, I have some too. They go to
sleep when the grid goes down. I have turned off the whole house at the
breaker box for no noticeable reduction in hash noise. I'm sure I will
find any with those probes plugging and unplugging every power supply.
That breaker doesn't stop the neighbors or those power lines in front of
the house:)

73,

Bill KU8H

bark less - wag more







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