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Date

Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

 

I will buy the AGC board with components.? $15.00 ?

On Mon, Oct 15, 2018 at 2:30 PM Dave Dixon <wylyeguy2@...> wrote:
the AGC & POP fix boards are by N6 DT..

On Mon, 15 Oct 2018 at 16:58, John Lauber <jlauber@...> wrote:

Will you take $10?? I¡¯ll pay with PayPal.

John

WI6P

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From: [email protected] <[email protected]> On Behalf Of Dave Dixon
Sent: Monday, October 15, 2018 08:03
To: [email protected]
Subject: [BITX20] I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

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First time startup

John Plaster
 

Looking for some insight from the group as where to look.
I assembled my unit, checked all connections, and turned it on. All I am getting on the display is "CW 7.150", no audio and no action with the encoder. The mic and speaker are attached and even attached a Bencher. The software is original from uBitx.
Thanks for any help.
John
K1VOI


Re: Simple spur fix

 

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Hello All,

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I just finished implementing the 45 Mhz crystal filter fix with the 7:2 impedance matching transformer on the output of the crystal. Now I am hearing myself in the speaker when I transmit and I am seeing the carrier wave on the SA when I push the PTT on the mic.

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I not sure why the crystal filter mod would be related to these two issues. Anyone experience anything similar?

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Ripley

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Sent from for Windows 10

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From: Raj vu2zap
Sent: Sunday, October 14, 2018 2:52 AM
To: [email protected]
Subject: Re: [BITX20] Simple spur fix

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Lev, Any experiments on this ?

At 05/09/2018, you wrote:

Would that be a good solution to make the IF amplifier tuned? Like this? Also, change the transistors to BFS17P, this is more suited to RF.

73s de HA5OGL

On Wed, Sep 5, 2018 at 10:46 AM Raj vu2zap < rajendrakumargg@...> wrote:

This fix reduced the spurs by up to 10 db?? and requires ONLY ONE part to be added.

There is big change above 10MHz in the board. There is some improvement below also.

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Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

Nigel G4ZAL
 

Hi Dave,

I'll take one, let me know how to contact/pay you.

Nigel.


Re: Harmonics and Relay Replacement

 

Mounted the AXICOM V23105-A5303-A201 this evening. Replaced all HFD27. And bingo - the harmonics on 3,5 / 7 /10.5 meet the german RegTP requirements (-40 dB). Would also meet the -43 FCC limit. For the higher bands I will test later. Need the HP boatanchors at our local club for that. Bought the relais from the ebay seller "breconjess" UK.
So the first problem is solved. Next are the spur fixes, then AGC...

73 Matthias, DD7NT


Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

Dave Dixon
 

Hello John
??????????????? the boards are by N6 DT and come with all componants plus circuit diagram, $10 is fine for one full set of agc...pop fix boards, plus post to your country ill ifnd out what that is.regards Dave.

On Mon, 15 Oct 2018 at 16:58, John Lauber <jlauber@...> wrote:

Will you take $10?? I¡¯ll pay with PayPal.

John

WI6P

?

From: [email protected] <[email protected]> On Behalf Of Dave Dixon
Sent: Monday, October 15, 2018 08:03
To: [email protected]
Subject: [BITX20] I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

?

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Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

Dave Dixon
 

the AGC & POP fix boards are by N6 DT..

On Mon, 15 Oct 2018 at 16:58, John Lauber <jlauber@...> wrote:

Will you take $10?? I¡¯ll pay with PayPal.

John

WI6P

?

From: [email protected] <[email protected]> On Behalf Of Dave Dixon
Sent: Monday, October 15, 2018 08:03
To: [email protected]
Subject: [BITX20] I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

?

?


Re: Recommended fixes on ubitx.net

 

Jerry - thank you so much for the positive words. The encouragement is much appreciated. I may have contributed to my own problems by overdriving the audio via my sound card or ground loops, etc.? So I'm building an easy Digi board and I'll figure out the appropriate drive levels.?

And go from there!

Thanks again.

Don
Km4udx?


Re: Harmonics and Relay Replacement

 

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Thanks Nigel appreciated



Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Nigel G4ZAL <nigel@...>
Date: 15/10/2018 17:03 (GMT+00:00)
Subject: Re: [BITX20] Harmonics and Relay Replacement

This seller on ebay UK is selling packs of 2 or 4 - I grabbed some 4's ;-)



Nigel


Re: Harmonics and Relay Replacement

 

Even RS componenets have them
?I had ordered on


On Mon, Oct 15, 2018 at 9:33 PM Nigel G4ZAL <nigel@...> wrote:
This seller on ebay UK is selling packs of 2 or 4 - I grabbed some 4's ;-)



Nigel


Re: Harmonics and Relay Replacement

Nigel G4ZAL
 

This seller on ebay UK is selling packs of 2 or 4 - I grabbed some 4's ;-)



Nigel


Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

John Lauber
 

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Will you take $10?? I¡¯ll pay with PayPal.

John

WI6P

?

From: [email protected] <[email protected]> On Behalf Of Dave Dixon
Sent: Monday, October 15, 2018 08:03
To: [email protected]
Subject: [BITX20] I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

?

?


Re: I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

Nigel G4ZAL
 

Hi Dave,

Depending on which version(s) you have, I¡¯d be interested in a set

Nigel - G4ZAL


I HAVE 2 AGC AND POP FIX BOARDS COMPLETE WITH DIAGRAMS FOR SALE.MAKE ME AN OFFER DAVE G0AYD

Dave Dixon
 



Re: uBITX40 : audio is meowing and not understandable.

Ian Reeve
 

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I have verion 3 of the uBITX and find that very accurate setting of the vfo via the menu is required. You may find you have to adjust it a bit, mine is set at 11.9972

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I also have had no audio issues with this soldered in TDA2822,producing ample clear audio through the supplied speaker.

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Ian M0IDR

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Sent from for Windows 10

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From: [email protected] <[email protected]> on behalf of Toni Cossio <a.cossio@...>
Sent: Monday, October 15, 2018 2:45:58 PM
To: [email protected]
Subject: [BITX20] uBITX40 : audio is meowing and not understandable.
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I need help to solve a malfunction.
I have a version 3 kit with the famous TDA 2822 in the WX version which for the moment does not produce smoke and the output is good.
The problem is that in SSB, even with strong signals, the audio is meowing and not understandable.
The same problem with 8/16 and 20 ohm speakers.
What can I do?
Thanks for the appreciated advice.
73 de IV3XHM, Toni


Re: Buy in INDIA

 

India is a big place.? Mumbai is about 700km from the home of the BITX.
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uBITX40 : audio is meowing and not understandable.

 

I need help to solve a malfunction.
I have a version 3 kit with the famous TDA 2822 in the WX version which for the moment does not produce smoke and the output is good.
The problem is that in SSB, even with strong signals, the audio is meowing and not understandable.
The same problem with 8/16 and 20 ohm speakers.
What can I do?
Thanks for the appreciated advice.
73 de IV3XHM, Toni


Re: Harmonics and Relay Replacement

 

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Hi Nigel do you have a link for your UK supplier Thanks Graham


Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Nigel G4ZAL <nigel@...>
Date: 15/10/2018 12:45 (GMT+00:00)
Subject: Re: [BITX20] Harmonics and Relay Replacement

With reference to the article, where the?AXICOM type D2n V23105-A5476-A201 is described as the best relay


I have located some of these in the UK as they are British Telecom specified relays with coil resistance of 280 ohms and power consumption of 515mW and operating current of 27mA
I paid? just under 1GBP each, (US$1.30) delivered.
Relay spec (scroll down to find the BT spec)


I have no means of testing the harmonic difference before and after installation, but hope they will not upset anything with the extra power demand?

Nigel - G4ZAL


Re: Harmonics and Relay Replacement

Nigel G4ZAL
 

With reference to the article, where the?AXICOM type D2n V23105-A5476-A201 is described as the best relay


I have located some of these in the UK as they are British Telecom specified relays with coil resistance of 280 ohms and power consumption of 515mW and operating current of 27mA
I paid? just under 1GBP each, (US$1.30) delivered.
Relay spec (scroll down to find the BT spec)


I have no means of testing the harmonic difference before and after installation, but hope they will not upset anything with the extra power demand?

Nigel - G4ZAL


Re: Buy in INDIA

 

Taxes may make the difference and it is well possible you buy goods at more favorably prices (and sometimes of better quality) outside the country. It's called microeconomics.


Il 15/ott/2018 12:10, "Dexter N Muir" <dexy@...> ha scritto:
By any god/s you care to name! I'd be astonished to find NZ produce cheaper overseas! What sort of upside-down system are you living in?