Date   
Re: India to Texas in 3 days

Bill Cromwell
 

Hi,

That only means it has arrived in the United States. It will take anywhere from 10 minutes toa few weeks to be processed there and then make it's way to you. So relax and enjoy your Christmas:)

73,

Bill KU8H

On 12/24/19 7:01 PM, Ken Simmons wrote:
I thought mine was coming Thursday as well, but when I just checked, it said it was delivered. Unfortunately, it was delivered in Poughkeepsie, NY and I live in Idaho!
I’m hoping HF Signals just sent me the wrong tracking number. Did anyone receive one in Poughkeepsie today?
*From: *David <mailto:@dsh1705>
*Sent: *Tuesday, December 24, 2019 4:25 PM
*To: *BITX20@groups.io <mailto:BITX20@groups.io>
*Subject: *Re: [BITX20] India to Texas in 3 days
Hey! I thought you said you would have to wait until Thursday! 😀👍🏻
--
bark less - wag more

Re: India to Texas in 3 days

Ken Simmons
 

I thought mine was coming Thursday as well, but when I just checked, it said it was delivered. Unfortunately, it was delivered in Poughkeepsie, NY and I live in Idaho!

 

I’m hoping HF Signals just sent me the wrong tracking number. Did anyone receive one in Poughkeepsie today?

 

 

From: David
Sent: Tuesday, December 24, 2019 4:25 PM
To: BITX20@groups.io
Subject: Re: [BITX20] India to Texas in 3 days

 

Hey! I thought you said you would have to wait until Thursday! 😀👍🏻

 

Re: India to Texas in 3 days

David
 

Hey! I thought you said you would have to wait until Thursday! 😀👍🏻

Re: How to get rid of Local FM broadcast stations #ubitx

Curt
 

Likewise I am thinking the interference of op VU3ONX is from the medium wave (AM) band.  there is nothing in the design to reject low frequency signals that seem to be overwhelming the first mixer.  (and based upon some buying filters, its not a unique problem). 

Some of the more complex filters are designed to try to preserve the 160m band.  for this new ham, I suggest not worrying with 1.8 MHz for now. 

here is a link that may be a bit simpler --

https://ubitx.net/fix-bci-filter/

these inductors 1.6 and 1.4 uH could certainly be wounder on any available plastic cylinder (I am thinking something like 2-3 cm diameter) - likely the equation is here on the web - it will take more wire but should work as well as using toroids. 

best to locate this filter only in the receive path - to avoid loss in the transmit path. 

73 Curt

V6

GARY SWARTOUT
 

Does V6 mitigate the lack of AGC, transmit pops or key/keyer problems?

73

Gary K7GS

 

Sent from Mail for Windows 10

 

Re: Universal case with v6?

Dennis Zabawa
 

Just looking at the on-line pictures, I would day you would need new front and rear panels IF the board would even fit at all.

Re: Help with a v5 stuck in transmit.

Curt
 

Hamp

See if the 470 ohm resistor used for TR switching is installed, then check the solder joint at each end.

Smaller possibility is RF getting into raduino. Likely it's something simple.

Curt

Re: Help with a v5 stuck in transmit.

Jim Willis
 

Hamp,

 

Ouch.

 

I believe the v5 requires a pull-up on the CW key line. Does your rig have that?

 

Jim

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of KG5MG
Sent: Tuesday, December 24, 2019 4:40 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Help with a v5 stuck in transmit.

 

I was using a 30amp supply normally used to run a Icom 7300 with no problems as well as a 2 meter rig and public service scanner. None were being used at that time.

 

When I tried transmitting again nothing happened. The TX/RX light stayed lit and no power shows going to antenna. No sound on receive.

 

 

Hamp Yearwood

KG5MG 

 

-------- Original message --------

From: Jim Willis <jimwill172@...>

Date: 12/24/19 3:22 PM (GMT-06:00)

Subject: Re: [BITX20] Help with a v5 stuck in transmit.

 

Hi Hamp,

 

The first problem “sounds” like there was not enough current available from your power supply – so it turned itself off and then back on and so forth. This could be caused by a dead short condition during transmit or just current overload.

 

There is not enough info to troubleshoot the second problem.

 

What happens when you try and TX again?

 

73,

 

Jim KX4TD

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of KG5MG
Sent: Tuesday, December 24, 2019 3:12 PM
To: BITX20@groups.io
Subject: [BITX20] Help with a v5 stuck in transmit.

 

I just completed assembling a uBitx v5 and tried to put it on the air.  It lit up and seemed to be receiving but when I keyed the mic there was a chattering noise and the TX/RX LED flashed on and off repeatedly then stayed showing in transmit status.  I was connected to a resonant antenna through an SWR bridge and no power indicated going out.  I turned the radio off then back on after disconnecting the mic but the TX light stayed lit.

 

I have been a ham for over 30 years but have been away from the hobby for the last 15+ hears.  My current skill level is slightly above a new Technician and the only test equipment is a multimeter.

 

Any help in troubleshooting the problem would be appreciated.

 

73 and Merry Christmas

 

Hamp Yearwood

KG5MG

 

Re: Help with a v5 stuck in transmit.

KG5MG
 

I was using a 30amp supply normally used to run a Icom 7300 with no problems as well as a 2 meter rig and public service scanner. None were being used at that time.

When I tried transmitting again nothing happened. The TX/RX light stayed lit and no power shows going to antenna. No sound on receive.


Hamp Yearwood
KG5MG 

-------- Original message --------
From: Jim Willis <jimwill172@...>
Date: 12/24/19 3:22 PM (GMT-06:00)
To: BITX20@groups.io
Subject: Re: [BITX20] Help with a v5 stuck in transmit.

Hi Hamp,

 

The first problem “sounds” like there was not enough current available from your power supply – so it turned itself off and then back on and so forth. This could be caused by a dead short condition during transmit or just current overload.

 

There is not enough info to troubleshoot the second problem.

 

What happens when you try and TX again?

 

73,

 

Jim KX4TD

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of KG5MG
Sent: Tuesday, December 24, 2019 3:12 PM
To: BITX20@groups.io
Subject: [BITX20] Help with a v5 stuck in transmit.

 

I just completed assembling a uBitx v5 and tried to put it on the air.  It lit up and seemed to be receiving but when I keyed the mic there was a chattering noise and the TX/RX LED flashed on and off repeatedly then stayed showing in transmit status.  I was connected to a resonant antenna through an SWR bridge and no power indicated going out.  I turned the radio off then back on after disconnecting the mic but the TX light stayed lit.

 

I have been a ham for over 30 years but have been away from the hobby for the last 15+ hears.  My current skill level is slightly above a new Technician and the only test equipment is a multimeter.

 

Any help in troubleshooting the problem would be appreciated.

 

73 and Merry Christmas

 

Hamp Yearwood

KG5MG

 

Re: Help with a v5 stuck in transmit.

Jim Willis
 

Hi Hamp,

 

The first problem “sounds” like there was not enough current available from your power supply – so it turned itself off and then back on and so forth. This could be caused by a dead short condition during transmit or just current overload.

 

There is not enough info to troubleshoot the second problem.

 

What happens when you try and TX again?

 

73,

 

Jim KX4TD

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of KG5MG
Sent: Tuesday, December 24, 2019 3:12 PM
To: BITX20@groups.io
Subject: [BITX20] Help with a v5 stuck in transmit.

 

I just completed assembling a uBitx v5 and tried to put it on the air.  It lit up and seemed to be receiving but when I keyed the mic there was a chattering noise and the TX/RX LED flashed on and off repeatedly then stayed showing in transmit status.  I was connected to a resonant antenna through an SWR bridge and no power indicated going out.  I turned the radio off then back on after disconnecting the mic but the TX light stayed lit.

 

I have been a ham for over 30 years but have been away from the hobby for the last 15+ hears.  My current skill level is slightly above a new Technician and the only test equipment is a multimeter.

 

Any help in troubleshooting the problem would be appreciated.

 

73 and Merry Christmas

 

Hamp Yearwood

KG5MG

 

India to Texas in 3 days

John AE5X <ae5x@...>
 

Three days to arrive, 30 minutes to build and now receiving beautifully. Haven't tried to make a contact yet but very impressed so far!

73 and Merry Christmas,
--
John AE5X
https://ae5x.blogspot.com/

Re: How to get rid of Local FM broadcast stations #ubitx

Jerry Gaffke
 

VU3ONX,

iz oos is correct about this:
>    A lowpass filter to eliminate the 88-108mhz makes little sense as the ubitx has it already. A highpass filter to remove the 0.5-1.6Mhz AM broadcasts make sense as the ubitx is unfiltered for it.

It is possible that an FM station is coming in through the antenna port 
and sneaking by the lowpass filter at L1,L2,L3,L4 somehow.
But I doubt it, you are most likely to be having trouble with an AM broadcast station.

The inductors should not be carrying much current, even if the AM BCI high pass filter
is inline with the antenna when transmitting.
It is the capacitors in the filter that will be carrying all of your transmit power.
So obtain any inductors that are close to the suggested values, they do not have to be toroids.

I had recommended this BCI filter to you, I suspect it would work fine:
  https://groups.io/g/BITX20/message/67270
The values used in that filter are   550pf, 4.3uH, 410pf, 4.172uH, 410pf, 4.3uH, 555pf


In this very recent post, Jack recommends a filter he published in CQ magazine
    https://groups.io/g/BITX20/message/73955
He does not show values in that post.
Here's an older post, with a pointer to a document in the files section.
    https://groups.io/g/BITX20/message/39613
Values in the document are:   1500pf  1.622uH 560pf 1.461uH 560pf 1.622uH 1500pf
VK3IL's blog post shows that the CQ article has the same part values as that document:
  https://vk3il.net/projects/broadcast-band-filter/

This second filter design may or may not be better than the one I first pointed out to you.
But I suspect either one will work for you.

Jerry, KE7ER




On Tue, Dec 24, 2019 at 03:06 AM, <vu3onx@...> wrote:

The discussion above made me think whether I have AM or FM interference. I had one MW Radio which was also playing the same station at 650 + KHz so I was in conclusion that it is AM.
But I checked and found that it is being transmitted over FM too.

Huh.. I am lost.. How do I verify?
Looks like I have to wait for any program host speak it out and say You are listening to AM/FM .. 

Any way I am trying to make a HPF first and see if that is going to eliminate my problem..

Getting Toroid at my place is bit difficult. Hope I get ready made conductors.

I am going to purchase the parts and hope I will be able to use my uBitx..

I will keep you all updated.
73 and Merry Christmas
VU3ONX

Re: How to get rid of Local FM broadcast stations #ubitx

Arv Evans
 

Ther is also the possibility of receiving short wave AM stations, particularly if one is close to your location.

_-_


On Tue, Dec 24, 2019, 4:06 AM <vu3onx@...> wrote:
Hi All,

The discussion above made me think whether I have AM or FM interference. I had one MW Radio which was also playing the same station at 650 + KHz so I was in conclusion that it is AM.
But I checked and found that it is being transmitted over FM too.

Huh.. I am lost.. How do I verify?
Looks like I have to wait for any program host speak it out and say You are listening to AM/FM .. 

Any way I am trying to make a HPF first and see if that is going to eliminate my problem..

Getting Toroid at my place is bit difficult. Hope I get ready made conductors.

I am going to purchase the parts and hope I will be able to use my uBitx..

I will keep you all updated.
73 and Merry Christmas
VU3ONX

Help with a v5 stuck in transmit.

KG5MG
 

I just completed assembling a uBitx v5 and tried to put it on the air.  It lit up and seemed to be receiving but when I keyed the mic there was a chattering noise and the TX/RX LED flashed on and off repeatedly then stayed showing in transmit status.  I was connected to a resonant antenna through an SWR bridge and no power indicated going out.  I turned the radio off then back on after disconnecting the mic but the TX light stayed lit.

 

I have been a ham for over 30 years but have been away from the hobby for the last 15+ hears.  My current skill level is slightly above a new Technician and the only test equipment is a multimeter.

 

Any help in troubleshooting the problem would be appreciated.

 

73 and Merry Christmas

 

Hamp Yearwood

KG5MG

 

Re: How to get rid of Local FM broadcast stations #ubitx

MVS Sarma
 

I wonder, in thousands if such ubitxs under use , how many still face this issue. My be very few after bci and other filters were adopted.

The poster can try without mic cable , whether it is the source of qrm  input. 

Whether we can try two trap filters for the disturbing fm signal, in series ?

Sarma vu3zmv

On Tue, 24 Dec 2019, 11:34 pm Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote:
Can work around a few spurs, just choose a different operating frequency.
As you suggest, these would truly be ham band signals., impossible to filter out.

RFI that comes in and takes over the receiver no matter where you tune would be hard to live with,
but should be possible to get rid of with appropriate filtering inline with the antenna.

Jerry

On Tue, Dec 24, 2019 at 05:02 AM, iz oos wrote:

Be aware that broadcasts if close enough to you they may well interfere you and nothing can be done. If the requirements is - 43db from the fundamental and you receive them at s9+60, you might receive their spurs at S9+10dbm whatever the filters you use. Luckely enough broadcasts filter way beyond and you might completely remove them. The problem is how clean is their transmission and how much pre selection has the receiver. The ubitx is rather robust to overloading for not having any rx preselection (apart from the 30mhz lowpass filter), but still has no frontend filters. If the MW transmitter is powerful but clean the issue will be easily solved with a high pass filter, and cheaply.

 

Re: How to get rid of Local FM broadcast stations #ubitx

Jerry Gaffke
 

Can work around a few spurs, just choose a different operating frequency.
As you suggest, these would truly be ham band signals., impossible to filter out.

RFI that comes in and takes over the receiver no matter where you tune would be hard to live with,
but should be possible to get rid of with appropriate filtering inline with the antenna.

Jerry


On Tue, Dec 24, 2019 at 05:02 AM, iz oos wrote:

Be aware that broadcasts if close enough to you they may well interfere you and nothing can be done. If the requirements is - 43db from the fundamental and you receive them at s9+60, you might receive their spurs at S9+10dbm whatever the filters you use. Luckely enough broadcasts filter way beyond and you might completely remove them. The problem is how clean is their transmission and how much pre selection has the receiver. The ubitx is rather robust to overloading for not having any rx preselection (apart from the 30mhz lowpass filter), but still has no frontend filters. If the MW transmitter is powerful but clean the issue will be easily solved with a high pass filter, and cheaply.

 

Re: Universal case with v6?

Jerry Gaffke
 

The v6 board can still be wired up with cables like the v5 board was,
you don't need to use the on board connectors.
Alternately, you could cut some sheet aluminum to cover the front panel with its v5 hole cutouts
and place new holes appropriate for the v6 on-board connectors.
Not clear from the photos, perhaps you could replace the front panel without much trouble.
Back panel can probably use some extra holes for better ventilation.



On Tue, Dec 24, 2019 at 06:57 AM, CopyguyAZ wrote:
Does any one know if the front and back panels included in the basic ubitx kit will fit this case without heavy modification?

https://amateurradiokits.in/product/universal-case-da-grey-for-ubitx/

I bought the case and by the time I ordered the radio they had stopped shipping the V5 and now it seems like I am stuck with the encloseure.

Universal case with v6?

Brad, K7NNR
 

Does any one know if the front and back panels included in the basic ubitx kit will fit this case without heavy modification?

https://amateurradiokits.in/product/universal-case-da-grey-for-ubitx/

I bought the case and by the time I ordered the radio they had stopped shipping the V5 and now it seems like I am stuck with the encloseure.

Re: How to get rid of Local FM broadcast stations #ubitx

iz oos
 

Be aware that broadcasts if close enough to you they may well interfere you and nothing can be done. If the requirements is - 43db from the fundamental and you receive them at s9+60, you might receive their spurs at S9+10dbm whatever the filters you use. Luckely enough broadcasts filter way beyond and you might completely remove them. The problem is how clean is their transmission and how much pre selection has the receiver. The ubitx is rather robust to overloading for not having any rx preselection (apart from the 30mhz lowpass filter), but still has no frontend filters. If the MW transmitter is powerful but clean the issue will be easily solved with a high pass filter, and cheaply.


Il 24/dic/2019 12:06, <vu3onx@...> ha scritto:
Hi All,

The discussion above made me think whether I have AM or FM interference. I had one MW Radio which was also playing the same station at 650 + KHz so I was in conclusion that it is AM.
But I checked and found that it is being transmitted over FM too.

Huh.. I am lost.. How do I verify?
Looks like I have to wait for any program host speak it out and say You are listening to AM/FM .. 

Any way I am trying to make a HPF first and see if that is going to eliminate my problem..

Getting Toroid at my place is bit difficult. Hope I get ready made conductors.

I am going to purchase the parts and hope I will be able to use my uBitx..

I will keep you all updated.
73 and Merry Christmas
VU3ONX

Re: #ubitx Fm/Am mode #ubitx

g8tdu
 

Wouldnt it be easier to use standard cheap 10Mhz computer crystals, it keeps the maths a lot simpler as well. I did also play around with a variable crystal filter at one pont, but not for FM, just AM/SSB