Date   
Re: 630 meters band

KD2QMZ
 

I have not idea how the Greek Zero thingy got mixed up as I only type the bitx20 group address. My text was the only content on it. Not sure what the system is programmed to do.
My question was not sent on the blog of bitx but its address on my email app with no Greek content anywhere.


On Tue, Jul 16, 2019 at 3:14 PM Vince Vielhaber <vev@...> wrote:
Talk about hijacking a thread.  The Greek alphabet has ZERO to do with
his question about 630 meters.

While the uB is capable of receiving 630, you'd have to add your own
bandpass filters.  I remember someone asking about transmitting down
there once before but don't remember what the answer was.

Vince - K8ZW.

On 07/16/2019 01:17 PM, Lawrence Galea wrote:
> Very easy to use the Greek micro symbol.
> just install the Greek keyboard and you can swap between keyboards.
> The letter M becomes the Greek letter μ
> L becomes the Greek letter lambda λ
> Same with other letters.
> Enjoy
>
>
> On Tue, Jul 16, 2019 at 6:31 PM Doug W <dougwilner@...
> <mailto:dougwilner@...>> wrote:
>
>     On Tue, Jul 16, 2019 at 11:06 AM, Skip Davis wrote:
>
>         What is a mbitx?
>
>     Many are calling the µBITX  UBITX.  While convenient, it is not
>     technically correct.  Ashhar named the radio µ as in micro.  Since
>     most keyboards do not have a µ and at least on windows going to the
>     character map to cut and paste is a hassle and remembering Alt + 230
>     is not the top of most folk's life goal lists, we substitute.  While
>     *u* looks closer I think *m* is closer to the designer's intention.
>
>     --
>     www.bitxmap.com <http://www.bitxmap.com>
>
>

--
   K8ZW  http://www.metalworkingfun.com   http://www.hamradio.fun



Re: 630 meters band

Evan Hand
 

The question of mbitix vs ubitx came up as a question to the original post of what was an mbitx.  The person was just trying to get clarification, as there are multiple types/versions in the BITX family.

Enough said.  

Evan
AC9TU

630 meter band discussion

raybunce@...
 




Begin forwarded message:

From: ray bunce <raybunce@...>
Date: July 16, 2019 at 3:48:16 PM CDT
To: BITX20@...
Subject: 630 meter band



Hello,

I’m kind of having a hard time getting my head around the very concept of a 630 meter band. A quarter wavelength is over 157 meters or more than 500 feet. Humongous antennas - wow   The mind starts to boggle.

Thanks- Ray KE5ICG

Re: 630 meter band discussion

Vince Vielhaber
 

If you google 630 meter band antennas you'll find several examples of loaded antennas that will fit in a smaller space. Also I've read articles where people are coupling to a tree and using it for an antenna with some success.

Vince.

On 07/16/2019 04:50 PM, ray bunce via Groups.Io wrote:



Begin forwarded message:

*From:* ray bunce <raybunce@... <mailto:raybunce@...>>
*Date:* July 16, 2019 at 3:48:16 PM CDT
*To:* BITX20@... <mailto:BITX20@...>
*Subject:* *630 meter band*



Hello,

I’m kind of having a hard time getting my head around the very concept
of a 630 meter band. A quarter wavelength is over 157 meters or more
than 500 feet. Humongous antennas - wow The mind starts to boggle.

Thanks- Ray KE5ICG

Re: 630 meters band

Arv Evans
 

To answer the original question...

1) Original BITX was single-band, mostly 20M.  Some were modified for other bands.
     Analog (L-C) VFO was standard.

2) MKARS-80 was a UK BITX for 80 meters.

3) Kit developers then provided parts or parts and PCBs for single band BITX units.
    Some of these kits were modified for other bands.

4) BINGO is an analog VFO version of the original BITX.

5) Then Nigel tested a BITX-17 for 17 Meters and kit providers followed.

6) Minima was an early attempt at an all-band (HF bands) BITX.

7) BITX-40 is a single-band version of the uBITX
     It uses an SI5351A for digital VFO.  The PCB is populated but you have to connect
     the front panel controls and provide a case.

8) uBitx (micro-BITX) is an all-band (HF Bands) version of the BITX.  It uses an Si5351a
     for digital frequency control.  The PCB is populated but you have to connect front-panel
     controls and provide a case.

Almost all versions of the BITX have been modified for other bands, including 160M, 6M,
and 2M.  Some of these mods are more successful than others.

Arv  K7HKL
_._


On Tue, Jul 16, 2019 at 2:34 PM Evan Hand <elhandjr@...> wrote:
The question of mbitix vs ubitx came up as a question to the original post of what was an mbitx.  The person was just trying to get clarification, as there are multiple types/versions in the BITX family.

Enough said.  

Evan
AC9TU

Re: 630 meters band

KD2QMZ
 

Cool  to know those can be modified. Will look into that. I do have V4, and may order a V5 if I kill the V4, which has been crappy after an attempt to add an audio amp kit.
Also, I would like to add that after talking to the manufacturers of the case, a module based version is being tested, aimed to get above some problems with original ubitx.

May try that and see too.


On Tue, Jul 16, 2019 at 4:59 PM Arv Evans <arvid.evans@...> wrote:
To answer the original question...

1) Original BITX was single-band, mostly 20M.  Some were modified for other bands.
     Analog (L-C) VFO was standard.

2) MKARS-80 was a UK BITX for 80 meters.

3) Kit developers then provided parts or parts and PCBs for single band BITX units.
    Some of these kits were modified for other bands.

4) BINGO is an analog VFO version of the original BITX.

5) Then Nigel tested a BITX-17 for 17 Meters and kit providers followed.

6) Minima was an early attempt at an all-band (HF bands) BITX.

7) BITX-40 is a single-band version of the uBITX
     It uses an SI5351A for digital VFO.  The PCB is populated but you have to connect
     the front panel controls and provide a case.

8) uBitx (micro-BITX) is an all-band (HF Bands) version of the BITX.  It uses an Si5351a
     for digital frequency control.  The PCB is populated but you have to connect front-panel
     controls and provide a case.

Almost all versions of the BITX have been modified for other bands, including 160M, 6M,
and 2M.  Some of these mods are more successful than others.

Arv  K7HKL
_._


On Tue, Jul 16, 2019 at 2:34 PM Evan Hand <elhandjr@...> wrote:
The question of mbitix vs ubitx came up as a question to the original post of what was an mbitx.  The person was just trying to get clarification, as there are multiple types/versions in the BITX family.

Enough said.  

Evan
AC9TU

Re: sketch for Bitx40 with the encoder #arduino #bitx40help #bitx40 #nano

AA9GG
 

I had an encoder on my BitX40 but wound up going back to the 10-turn pot.  I just made more sense since it's single band.  Plus I was fighting trying to re-write the menu stuff to work with it.


On Tue, Jul 16, 2019 at 2:04 PM Don, ND6T via Groups.Io <nd6t_6=yahoo.com@groups.io> wrote:
Sergio: Here are two : http://www.nd6t.com/bitx/documentation/encoder
73,
Don



--
Paul Mateer, AA9GG
Elan Engineering Corp.
www.elanengr.com

dc rcvr ?

russ ward
 

now have ubitx receiving -
tuning across cw signal sounds like
dc (direct conversion) rcvr with audio
on both sides of zero beat -
thought ubix was single signal like
front panel says either usb or lsb -
perhaps is not yet adjusted ok ?
73 de russ w4ni

Re: dc rcvr ?

Curt
 

Russ

Definitely its a superhet. The xtal filter is wide enough for ssb. Try tuning in some voice signals to get a better feel for it. Many arrive with bfo alignment way off.

I use a nescaf audio filter with mine to get a narrow cw bandwidth.

Curt

Re: dc rcvr ?

Ashhar Farhan
 

Your BFO is in the middle of the passband. you will have to get into calibration menu (choose setup option and then BFO calibration) and then tune the bfo until it gets to a side of the filter skirt. i guess there are videos on how to do it.

- f

On Wed, Jul 17, 2019 at 7:39 AM Curt via Groups.Io <wb8yyy=yahoo.com@groups.io> wrote:
Russ

Definitely its a superhet. The xtal filter is wide enough for ssb. Try tuning in some voice signals to get a better feel for it. Many arrive with bfo alignment way off.

I use a nescaf audio filter with mine to get a narrow cw bandwidth.

Curt

Re: 630 meters band

iz oos
 

I remember 160m just needed a lowpass filter. I am not sure, maybe it depends on the versions, whether changing (increasing) the values of emitter caps such as C81 might be useful for lower bands. I am not aware of using in on TX on MW or LW. About the attempts of using it on VHF or above, I would be interested if different from using a transverter.


Il 17/lug/2019 00:01, "KD2QMZ" <syracusepro@...> ha scritto:
Cool  to know those can be modified. Will look into that. I do have V4, and may order a V5 if I kill the V4, which has been crappy after an attempt to add an audio amp kit.
Also, I would like to add that after talking to the manufacturers of the case, a module based version is being tested, aimed to get above some problems with original ubitx.

May try that and see too.

On Tue, Jul 16, 2019 at 4:59 PM Arv Evans <arvid.evans@...> wrote:
To answer the original question...

1) Original BITX was single-band, mostly 20M.  Some were modified for other bands.
     Analog (L-C) VFO was standard.

2) MKARS-80 was a UK BITX for 80 meters.

3) Kit developers then provided parts or parts and PCBs for single band BITX units.
    Some of these kits were modified for other bands.

4) BINGO is an analog VFO version of the original BITX.

5) Then Nigel tested a BITX-17 for 17 Meters and kit providers followed.

6) Minima was an early attempt at an all-band (HF bands) BITX.

7) BITX-40 is a single-band version of the uBITX
     It uses an SI5351A for digital VFO.  The PCB is populated but you have to connect
     the front panel controls and provide a case.

8) uBitx (micro-BITX) is an all-band (HF Bands) version of the BITX.  It uses an Si5351a
     for digital frequency control.  The PCB is populated but you have to connect front-panel
     controls and provide a case.

Almost all versions of the BITX have been modified for other bands, including 160M, 6M,
and 2M.  Some of these mods are more successful than others.

Arv  K7HKL
_._


On Tue, Jul 16, 2019 at 2:34 PM Evan Hand <elhandjr@...> wrote:
The question of mbitix vs ubitx came up as a question to the original post of what was an mbitx.  The person was just trying to get clarification, as there are multiple types/versions in the BITX family.

Enough said.  

Evan
AC9TU

Re: sketch for Bitx40 with the encoder #arduino #bitx40help #bitx40 #nano

SaMa photo SaMa photo
 

On Tue, Jul 16, 2019 at 09:04 PM, Don, ND6T wrote:
http://www.nd6t.com/bitx/documentation/encoder
Thanks Don I had seen them too, the problem is that the first is only for the encoder and should be integrated and I am not able
The second one has some problems in the compilation and uses so many functions that I don't have type cw, swr etc.

Re: sketch for Bitx40 with the encoder #arduino #bitx40help #bitx40 #nano

SaMa photo SaMa photo
 

Thanks AA9GG I had seen them too, the problem is that the first is only for the encoder and should be integrated and I am not able
The second one has some problems in the compilation and uses so many functions that I don't have type cw, swr etc.

Re: 630 meters band

Lawrence Galea
 

I answered because Doug asked about "many are calling the µBITX  UBITX"


On Tue, Jul 16, 2019 at 9:14 PM Vince Vielhaber <vev@...> wrote:
Talk about hijacking a thread.  The Greek alphabet has ZERO to do with
his question about 630 meters.

While the uB is capable of receiving 630, you'd have to add your own
bandpass filters.  I remember someone asking about transmitting down
there once before but don't remember what the answer was.

Vince - K8ZW.

On 07/16/2019 01:17 PM, Lawrence Galea wrote:
> Very easy to use the Greek micro symbol.
> just install the Greek keyboard and you can swap between keyboards.
> The letter M becomes the Greek letter μ
> L becomes the Greek letter lambda λ
> Same with other letters.
> Enjoy
>
>
> On Tue, Jul 16, 2019 at 6:31 PM Doug W <dougwilner@...
> <mailto:dougwilner@...>> wrote:
>
>     On Tue, Jul 16, 2019 at 11:06 AM, Skip Davis wrote:
>
>         What is a mbitx?
>
>     Many are calling the µBITX  UBITX.  While convenient, it is not
>     technically correct.  Ashhar named the radio µ as in micro.  Since
>     most keyboards do not have a µ and at least on windows going to the
>     character map to cut and paste is a hassle and remembering Alt + 230
>     is not the top of most folk's life goal lists, we substitute.  While
>     *u* looks closer I think *m* is closer to the designer's intention.
>
>     --
>     www.bitxmap.com <http://www.bitxmap.com>
>
>

--
   K8ZW  http://www.metalworkingfun.com   http://www.hamradio.fun



getting the uBitx on FT8

Nick Tile
 

Hi Guys,I was planning to put my uBitx on FT8 - no problem with an interface for the audio, but puzzled as to how best to drive the PTT. I've installed Ian's Firmware which seems to be CAT compliant but I can't see if it drives the PTT or if I need to install a USB - Serial interface. Interested to know how you've done it ? 

Nick

Re: getting the uBitx on FT8

_Dave_ K0MBT
 

The arduino usb port plugs straight into the computer usb. I would reccomend a separate usb sound card for audio.
73
dave
K0mbt

Re: getting the uBitx on FT8

Nick Tile
 

ah, that would imply that the PTT is driven through the USB port so is in software - I was wondering, thank you. There seem to be mixed views as to whether one should include isolation transformers in the audio chain so I was planning to build the simple interface that seems to be everywhere and includes them

N

Items For Sale uBITX V4 new -plus #filters #ubitx

Lawrence Macionski <am_fm_radio@...>
 

Also posted (with pictures) on QRZ.com ONLINE SWAP MEET.
W8LM-For Sale, this is all uBITX related stuff. FOR SALE - uBITX V4 new in box- with AGC & T/R pop boards from K5BCQ (no longer available. AND http://amateurradiokits.in/store/metal-enclosures - universal case DA grey for uBITX. Also new in the box. Entire package paypal shipped CONUS. All for $225 paypal shipped CONUS. Last weekend at a hamfest I found a FT-817 estate sale which does everything and more but was more $$$. PM me or use my QRZ.com email address. Pickup less- QTH near, Wichita, KS.

I also have VK4PP bare boards--- https://vk4pp.blogspot.com

3 each VK4PP RaduinoI2C Board it has PTT pop fix built in. $10

3 each VK4PP BITX audio break out boards. $4

3 Each VK4PP 3.5 mhz high pass filter board for BC QRM $3

3 Each VP4PP LM 386 based 200 Hz CW filter..$4

VK4PP is currently all SOLD OUT except audio breakout.

PAYPAL CONUS only! Contact my QRZ.com email.

1 each of all 4 boards - $20 paypal. USPS 1st class mail.

Re: 630 meters band

K9SMO <Steveo250k@...>
 

No, it is not.  If the designer intended mu for micro, then using m would be milli.  Using M would be Mega.  I don't know what U is but u is close enough to the Greek letter mu.  Farhan calls is micro B I T x.  uBITx is close enough.  My eyes aren't so good that I can miss the little tail.

He published a YouTube video where HE titled it uBITX (https://www.youtube.com/watch?v=j-yLof4sTtE&t=1s)  If it's good enough for the designer, it's good enough for me.

Re: getting the uBitx on FT8

 

Audio isolation is recommended, the cec software spoofs as a ft-817 I have run it without issue many times.
--
David

 N8DAH
Kit-Projects.com

Shop is open!