Date   

Re: Transverter for uBitx

K9HZ
 

Yikes!  My IPhone keeps “helping me out” with word  and phrase substitution… this note should have read:

 

I’m thinking you would forgo the attenuator and drive it right off RV1… I have now modified my radio to switch in different RV1 pots basis the band selected… so, in my case, I just add another relay and pot for the trans-verter input.  There is no point making additional power in the RF chain just to attenuate it.

 

Sheesh!  Ok, some of it was me.

 

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

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Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

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email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of K9HZ
Sent: Saturday, February 24, 2018 9:09 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Transverter for uBitx

 

I’m thinking you would forgo the attenuator and drive it right off RV1… I have not modified my radio to switch in different RV1 pots basis the band selected… so I just another pot for a different band and over to the transverter.  There is no point making more power in the RF chain just to attenuate it.

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

Like us on Facebook! facebook icon

 

Moderator – North American QRO Yahoo Group.

 

email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Scott McDonald via Groups.Io
Sent: Saturday, February 24, 2018 5:57 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Transverter for uBitx

 

They are Bug bang for the buck. And pretty much arrive as promised.

 

There is one decent YouTube video worth a look, which mentions distortion increasing over a few watts.

 

The other practical problem may be using their switching attenuator board with a uBITX, as that board wants to see 5 watts.  My uBITX is about half that on 10 but there is a pot on the board with some variability.  I haven’t dialed mine in on transmit yet with because I’ve been driving them with a KX2 hacked to go to 32 MHz and with low enough drive without using an attenuator - I’m using the uBITX as a satellite receiver for now -but I’m hoping to use two BITX with these transverters as a cheap lightweight backpack full duplex sat rig.

 

73 Scott

Make something good happen!


On Feb 24, 2018, at 1:37 AM, Joe Puma <kd2nfc@...> wrote:

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 

 

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Re: Raduino Board

Michael Hagen
 

I have RaduinoX, a much better Raduino for Bit X

I have sold over 50 of them to folks here on this list.

Email me if you want anymore info.

73's

Mike, WA6ISP



On 2/24/2018 12:35 AM, John Baines wrote:
Hi all,

Does anyone know if it is possible to buy a replacement Raduino board for a Bitx40

73/72

John
M0JBA




-- 
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...

Re: Transverter for uBitx

K9HZ
 

I’m thinking you would forgo the attenuator and drive it right off RV1… I have not modified my radio to switch in different RV1 pots basis the band selected… so I just another pot for a different band and over to the transverter.  There is no point making more power in the RF chain just to attenuate it.

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

Like us on Facebook! facebook icon

 

Moderator – North American QRO Yahoo Group.

 

email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Scott McDonald via Groups.Io
Sent: Saturday, February 24, 2018 5:57 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Transverter for uBitx

 

They are Bug bang for the buck. And pretty much arrive as promised.

 

There is one decent YouTube video worth a look, which mentions distortion increasing over a few watts.

 

The other practical problem may be using their switching attenuator board with a uBITX, as that board wants to see 5 watts.  My uBITX is about half that on 10 but there is a pot on the board with some variability.  I haven’t dialed mine in on transmit yet with because I’ve been driving them with a KX2 hacked to go to 32 MHz and with low enough drive without using an attenuator - I’m using the uBITX as a satellite receiver for now -but I’m hoping to use two BITX with these transverters as a cheap lightweight backpack full duplex sat rig.

 

73 Scott

Make something good happen!


On Feb 24, 2018, at 1:37 AM, Joe Puma <kd2nfc@...> wrote:

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avg.com

Re: Transverter for uBitx

K9HZ
 

Huh… looks interesting… Cheap way to get a uBITx on 2M and 432…

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

Like us on Facebook! facebook icon

 

Moderator – North American QRO Yahoo Group.

 

email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Joe Puma
Sent: Saturday, February 24, 2018 1:37 AM
To: BITX20@groups.io
Subject: [BITX20] Transverter for uBitx

 

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 


Virus-free. www.avg.com

uBITX shipping schedule

John KC9OJV
 

I (perhaps foolishly) signed up for a uBITX presentation at my club on March 13th. I ordered (DHL) a uBITX on Feb 6th. Based on the shipping info I'm seeing here it seems unlikely I'll have the radio soon enough to have it available to show. I have a back up plan for another presentation so no big deal- I can do the uBITX another time. Consensus is no way will it be there (US.Chicago area) by then?

John
KC9OJV

Re: Buying new raduino board #ubitx

 

hi
i have same problem i need another raduino board but i don't know where is possible to buy!
i have wrote to the manager of web site a month ago but at this time they don't send me any notice
73

Re: I got my uBITX ... adventurous shipment !

PY2JCM
 

Hi

Gian, my ubitx ordered December 23 was shipped on the 21st and he will have a bad trip just like yours, the Brazilian Postal company is very bad, I imagine at least 90 days for delivery in my home ......

73 QRO Josias-PY2JCM





Re: Dynamic mic on ubitx

Walter
 

I tried using this cap isolation trick and get nothing using a Kenwood MC-42S mic. Which is a dynamic mic.
--
73, W9KJO
Walter

Re: No Power Out on UBITX

Walter
 

OK. on the microphone.

Why am I only getting 1/2 watt with the keyer.  is that normal?

--
73, W9KJO
Walter

Re: Transverter for uBitx

Scott McDonald
 

They are Bug bang for the buck. And pretty much arrive as promised.

There is one decent YouTube video worth a look, which mentions distortion increasing over a few watts.

The other practical problem may be using their switching attenuator board with a uBITX, as that board wants to see 5 watts.  My uBITX is about half that on 10 but there is a pot on the board with some variability.  I haven’t dialed mine in on transmit yet with because I’ve been driving them with a KX2 hacked to go to 32 MHz and with low enough drive without using an attenuator - I’m using the uBITX as a satellite receiver for now -but I’m hoping to use two BITX with these transverters as a cheap lightweight backpack full duplex sat rig.

73 Scott

Make something good happen!

On Feb 24, 2018, at 1:37 AM, Joe Puma <kd2nfc@...> wrote:

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 

Re: KD8CEC V1.02 CW Frequency TX Adjust on LCD #ubitx

Mitani Masaru
 

Lee.

I just get V1.03 Firmware sketch.
https://github.com/phdlee/ubitx/tree/version1.03
It's good work for CW oparation and elegant sketch modify.
The BFO Adjust function change 50Hz to 5Hz/step is better modify.
Thank you.

JE4SMQ masa

Re: Raduino Board

Nik VK4PLN
 

I have a bare PcB that you populate with components yourself. Just hanging a few weeks, they are being manufactured now...

Raduino Board

John Baines
 

Hi all,

Does anyone know if it is possible to buy a replacement Raduino board for a Bitx40

73/72

John
M0JBA

Re: Transverter for uBitx

Lawrence Galea
 

I have one for 50 MHz and one for 70 MHz which I use with my TS520S.
I have used them barefoot.
Regards
Lawrence

On Sat, Feb 24, 2018 at 8:37 AM, Joe Puma <kd2nfc@...> wrote:

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 

Transverter for uBitx

Joe Puma
 

I’m thinking about adding this to my build, has anyone attempted installing a transverter?

 

https://www.ebay.com/itm/144-to-28-MHz-TRANSVERTER-ATTENUATOR-BOARD-2m-144mhz-146mhz-VHF-UHF-Ham-Radio/221816251327?epid=842423775&hash=item33a54763bf:g:V4wAAOSwfglZwjN8

 

 

Sent from Mail for Windows 10

 

Re: the new site

Konstantinos Konstas
 

Hi to all.
Great job, all the needed info gathered together.
Congrats.

Konstantinos, SV1ONW

On Feb 23, 2018 18:46, "Arv Evans" <arvid.evans@...> wrote:

On Fri, Feb 23, 2018 at 9:27 AM, Carl Beck <carl@...> wrote:
Ashhar:  We need a breakout just for uBITX.  Searching through BITX20 and BITX40 to find things on uBITX is a pain.  Please: can you do something about this?


Re: No Power Out on UBITX

Michael Shreeve
 

Here is an interesting little mike that uses the same Electret microphone as the BITX ,uBitx. http://www.qrpkits.com/microphone.html
This is the construction manual and may have a  schematic or block diagram. 
 http://www.qrpkits.com/files/ElectretMic20180125.pdf The electret element has a little single fet amplifier in it, as can be seen in this article https://en.wikipedia.org/wiki/Electret_microphone A dynamic microphone is very similar to a dynamic cartridge used in a turntable, and is essentially a little coil and magnet., with the coil attached to a diaphragm.  The output voltage on a dynamic microphone may be very low, typically in the 1 to 100 microvolt range. A microphone preamplifier increases that level by up to 70 dB, to anywhere up to 10 volts
The electret microphone doesn't have quite the  level of a Dynamic microphone with preamp, but doesn't need it. It is substantially higher than a dynamic microphone without a preamp. 



On Feb 23, 2018 8:24 PM, "Raj vu2zap" <rajendrakumargg@...> wrote:
Walter,

Try the original mic element as is. Dynamic mic out is low and I could hardly get any power with mine.
It will need another gain stage.

You need to yell a bit for full power..

reduce value of R63 to increase the mic amp gain.

Raj

At 24/02/2018, you wrote:
>I turned it on for the first time.  Checked the current draw, which was easy with my Lab power supply with meters.  All looked good.
>
>Hit the ptt on the mic, Display shows TX and I get 200ma increase on PA bus with not modulation.  Looks good.
>
>Talk into the mic no Power out on watt meter.  I'm using a watt meter and dummy load on antenna.  Not Good.  Maybe Mic is not wired correctly.  I am using a Kenwood MC-42S Dynamic Mic.  I put a Cap in the mic line (violet) to protect form the power supplied to an electoret Mic.  Does anyone know if the mic element in a Kenwood MC-42S requires power?  The 8 Pin connector has 8vdc on the Kenwood pin out but I don't think that is for the Mic element, as I thought a dynamic mic did not need power.  I did mount an 8 pin mic connector on the front panel of my UBITX and wired it according to the Kenwood Pin Out.  Which I have verified multiple time.  I may be that isolation cap.  What do you think?
>
>Hit the Keyer I get about 1/2 watt out on watt meter.  I think that should be much more than 1/2 watt.  Same on 80m, 70m and 20m.
>
>Advice and help would be greatly appreciated.
>
>Thanks
>--
>73, W9KJO




Re: No Power Out on UBITX

John P
 

Any mic that's suitable for use with the sound card in your PC should work. That's what I use on the BitX-40.
--
John - WA2FZW

Re: No Power Out on UBITX

 

Walter,

Try the original mic element as is. Dynamic mic out is low and I could hardly get any power with mine.
It will need another gain stage.

You need to yell a bit for full power..

reduce value of R63 to increase the mic amp gain.

Raj

At 24/02/2018, you wrote:
I turned it on for the first time. Checked the current draw, which was easy with my Lab power supply with meters. All looked good.

Hit the ptt on the mic, Display shows TX and I get 200ma increase on PA bus with not modulation. Looks good.

Talk into the mic no Power out on watt meter. I'm using a watt meter and dummy load on antenna. Not Good. Maybe Mic is not wired correctly. I am using a Kenwood MC-42S Dynamic Mic. I put a Cap in the mic line (violet) to protect form the power supplied to an electoret Mic. Does anyone know if the mic element in a Kenwood MC-42S requires power? The 8 Pin connector has 8vdc on the Kenwood pin out but I don't think that is for the Mic element, as I thought a dynamic mic did not need power. I did mount an 8 pin mic connector on the front panel of my UBITX and wired it according to the Kenwood Pin Out. Which I have verified multiple time. I may be that isolation cap. What do you think?

Hit the Keyer I get about 1/2 watt out on watt meter. I think that should be much more than 1/2 watt. Same on 80m, 70m and 20m.

Advice and help would be greatly appreciated.

Thanks
--
73, W9KJO

New uBitx on Air!

 

Ordered the 23rd Dec, RX Feb 22. On air Feb 23!

Audio is super hot I mean really hot I did change R51 to 2.2k but still very hot, need agc asap for sure.


--
David

 N8DAH
Kit-Projects.com