There seems to be some confusion about how U2, the SMD part, is oriented on the PCB. I've attached a photo that should clear that up.
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Re: Baofeng microphone mod for BITX
DJ4MU, and All,?
While I didn¡¯t try too awful hard to figure out how to make my Baofeng work UN-modified, I was not having much luck, so having a handful of these on hand, I just opened one up, disconnected the speaker, cut traces, removed SMD devices and made sure the PTT and the MIC wiring and traces went only to the devices and indicated pins, while retaining only the shortest possible runs. ?I also made sure my jacks were mounted to plastic and not grounded to a metal chassis. ?I also drilled out the tiny hole in front of the mic element.?
I used two Radio Shack square panel jacks to plug mic plug into. ?If you turn the flat sides against each other that are 180 degrees away from the solder rings on the jacks, then the mic plug will slide into place perfectly.
So, while my mic is not interchangeable any more with my Baofeng HT, I sure don¡¯t care, as it fits my description of a junk box find @ under $5. And the jacks are part of my multi hundred part cleanup of multiple Radio Shacks. Below is my prototyping set up.
KM4YEC Craig
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On May 28, 2017, at 5:09 AM, DJ4MU < pbepler@...> wrote:
Despite the posted diagram i'm still not sure how to wire up the unmodified Baofeng mic to the Bitx. the speaker connections seem obvious, with ground on the sleeve of 2.5mm and other speaker connection to tip. the mic + connection seems fairly obvious too , on the ring of the 3.5mm. But where are the mic - and PTT wires from the Bitx connected, and do they all use the same ground? Which Bitx wire connects to the tip of the 3.5mm (v+) ?
<Bao_plug_Bitx.jpg>
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What spec am I looking for regarding the display, have seen a red on a black background somewhere.
But do not really know anything about them.?
Must be 2 line as the menu, comes up on the lower line, and would rather just a plug in replacement.
On the search for hardware, seems to be a bit of a short supply, mainly knobs. Need a decent sized knob for the tuning control.
Just trying to work out the front panel layout, and either front or back may have a USB socket for updating the Raduino.
Phil - G7BZD
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Re: doTuning() mod, utility, vanity
Bob:
There are several other options like the PIC32 based Fubarino Mini(32 Bit, 40 MHz, massive RAM & Flash).
And like you pointed out there is the 5v/3.3v issues. There are also pinout issues, delay loop timing, and more importantly library incompatibilities. Many "standard" Arduino libraries do direct Atmel register access that won't run on other architectures. There are hundreds of posts on the chipKIT Forum from folks having trouble using Arduino libraries on the PIC32 family of chipKIT boards. You can't assume it will work across processor architectures. Some library rewriting/porting may be required. As they say YMMV...
That said, with good Eagle-Fu you could layout your own 32 Bit "Raduino" on an architecture of your choice.
James
KE4MIQ
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Hi David,?
I know. ?These Bitx40 kits are excellent. ?Glad you're having fun. It took me more time to make a box than to get on the air.?
If you want to get on 70cm cheaply I suggest the Baofeng uv-5r. They are an HT that run about $39. I've had mine for about 4 months and I've only had to charge it twice with stock battery. Accessories are super cheap online as well.?
I think I got mine from dx.com if I remember correctly.?
Cheers
Jamie VA3RLF?
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Re: BITX40 Microphone options
On the Yaesu speaker/mic I have, the MH-57, it looks like mic and PTT are on the same ring, third down from the top.
Will this not work with the BITX40?? Do PTT and mic need to be on different circuits?
--
Darren, W9ZIM
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Hi Richard.
As detailed by Allard...
Running Raduino v1.10 here at the moment, requires the function push to make button connected, as detailed in the instructions.
The VFO drive levels for LSB and USB can be set from the front panel with
the function button (SETTINGS menu).
See the operating instructions at
Phil - G7BZD
On Sun, May 28, 2017 at 1:36 PM, Allard PE1NWL <pe1nwl@...> wrote: The VFO drive levels for LSB and USB can be set from the frontpanel with
the function button (SETTINGS menu).
See the operating instructions at
73 Allard PE1NWL
On Sun, May 28, 2017 14:19, richard kappler wrote:
> Phil, how did you set your drive level? I see LSBdrive in the code but,
> not
> having had my first coffee yet, I don't see where it is adjustable.
>
> 73, Richard
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The VFO drive levels for LSB and USB can be set from the frontpanel with
the function button (SETTINGS menu).
See the operating instructions at
73 Allard PE1NWL
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Show quoted text
On Sun, May 28, 2017 14:19, richard kappler wrote: Phil, how did you set your drive level? I see LSBdrive in the code but,
not
having had my first coffee yet, I don't see where it is adjustable.
73, Richard
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Im using the bitx40 now for 3 weeks with a LIPO S3, giving me about 11.1 -11.9 volts (just after charge) the result is about 4.5 Watt.
The 10Volt seems a bit low to me for a Lipo, of course depending on the what LIPO it is .
For me it does the trick. No problems whatsoever.
Its a 4400 mAh S3 Lipo
73
ON2AAV
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Try it and tell us! Your power output will suffer, but that is all that will probably happen
On 28 May 2017 4:13 a.m., "ZL4BEN" < Benwhiteim@...> wrote: Hi all,
I ordered a LIPO battery from evilbay for a really good price, half expecting it to never arrive... But it did, I The page said about 3 amps at 12v, I plan to use this for SOTA but I was a little wary of the voltage, so I checked it and surely enough It only puts out 10v :( will this be enough for the little bitx? or does it need the rated 12?
Cheers and 73!
ZL4BEN
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Phil, how did you set your drive level? I see LSBdrive in the code but, not having had my first coffee yet, I don't see where it is adjustable.
73, Richard 
On Sun, May 28, 2017 at 5:07 AM, philip yates <phil@...> wrote: I also found out that the drive setting if too high increases the noise from the speaker. My 2x Raduino's are set at 2mA drive, now and the RX is nice and clear. maybe nothing? But as I can barely hear the RSGB news broadcast from DL land on my FT1000 and inverted L, It now sounds the same on my Bitx40.
Phil- G7BZD?
-- W2KAP In any given circuit, the most expensive part will always sacrifice itself to protect the fuse.
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My noise was quieter one end of the band to the other than dropped off towards the top, now its fairly even, and the audio also sounds better, theres also more stations now to listen too.
Did try both Raduino's, now they are both the same. And the AGC ( not LDR/AGC ) seems to function better.
Phil - G7BZD
On Sun, May 28, 2017 at 12:41 PM, Allard PE1NWL <pe1nwl@...> wrote: Also note that there is currently a solar storm going on, this may also
explain the increased noise on 40m..
see
73 Allard PE1NWL
On Sun, May 28, 2017 11:07, philip yates wrote:
> I also found out that the drive setting if too high increases the noise
> from the speaker.
> My 2x Raduino's are set at 2mA drive, now and the RX is nice and clear.
> maybe nothing?
> But as I can barely hear the RSGB news broadcast from DL land on my FT1000
> and inverted L,
> It now sounds the same on my Bitx40.
>
>
> Phil- G7BZD
>
> On Sun, May 28, 2017 at 3:35 AM, KC8WBK via Groups.Io <
> cruisenewsnet=yahoo.com@groups.io> wrote:
>
>> Here are some very basic things to check, sorry if they are too simple,
>> I
>> don't mean to insult:
>>
>> Try different times of day/night.
>>
>> You have to tune to the exact frequency or the voices will be distorted.
>>
>> Are you using LSB? If you are on USB it will be distorted.
>>
>>
>>
>
|
Also note that there is currently a solar storm going on, this may also
explain the increased noise on 40m..
see
73 Allard PE1NWL
toggle quoted message
Show quoted text
On Sun, May 28, 2017 11:07, philip yates wrote: I also found out that the drive setting if too high increases the noise
from the speaker.
My 2x Raduino's are set at 2mA drive, now and the RX is nice and clear.
maybe nothing?
But as I can barely hear the RSGB news broadcast from DL land on my FT1000
and inverted L,
It now sounds the same on my Bitx40.
Phil- G7BZD
On Sun, May 28, 2017 at 3:35 AM, KC8WBK via Groups.Io <
cruisenewsnet@...> wrote:
Here are some very basic things to check, sorry if they are too simple,
I
don't mean to insult:
Try different times of day/night.
You have to tune to the exact frequency or the voices will be distorted.
Are you using LSB? If you are on USB it will be distorted.
|
Re: Source of LDR required.
Thanks.
Off to get the LDR's on order.
Phil - G7BZD
On Sun, May 28, 2017 at 9:25 AM, Raj vu2zap <rajendrakumargg@...> wrote: Here is more info, attached!
Raj
At 28-05-2017, you wrote:
>Thanks for all the info, most the adverts on ebay do not actually give the resistance figures, so knowing ? a part number instead would help, will have to get the spec sheets up, did try looking for a selection, bit like buying assorted components, but no luck so far, am going to buy a couple as they cost so little.
|
Re: Baofeng microphone mod for BITX
Despite the posted diagram i'm still not sure how to wire up the unmodified Baofeng mic to the Bitx.
the speaker connections seem obvious, with ground on the sleeve of 2.5mm and other speaker connection to tip.
the mic + connection seems fairly obvious too , on the ring of the 3.5mm.
But where are the mic - and PTT wires from the Bitx connected, and do they all use the same ground?
Which Bitx wire connects to the tip of the 3.5mm (v+) ?
|
I also found out that the drive setting if too high increases the noise from the speaker. My 2x Raduino's are set at 2mA drive, now and the RX is nice and clear. maybe nothing? But as I can barely hear the RSGB news broadcast from DL land on my FT1000 and inverted L, It now sounds the same on my Bitx40.
Phil- G7BZD?
On Sun, May 28, 2017 at 3:35 AM, KC8WBK via Groups.Io <cruisenewsnet@...> wrote: Here are some very basic things to check, sorry if they are too simple, I don't mean to insult:
Try different times of day/night.
You have to tune to the exact frequency or the voices will be distorted.
Are you using LSB? If you are on USB it will be distorted.
|
Re: Source of LDR required.
Here is more info, attached!
Raj
toggle quoted message
Show quoted text
At 28-05-2017, you wrote: Thanks for all the info, most the adverts on ebay do not actually give the resistance figures, so knowing ? a part number instead would help, will have to get the spec sheets up, did try looking for a selection, bit like buying assorted components, but no luck so far, am going to buy a couple as they cost so little.
|
Re: Source of LDR required.
Thanks for all the info, most the adverts on ebay do not actually give the resistance figures, so knowing ?a part number instead would help, will have to get the spec sheets up, did try looking for a selection, bit like buying assorted components, but no luck so far, am going to buy a couple as they cost so little. Must get some vero strip board as well.?
Have placed the Bitx40 into its case to get an idea of room available, and theres going to be enough for the add ons, Already built the oyther AGC circuit, just fancied building the LDR/LED one to compare.
Thanks All.
Phil - G7BZD
On Sun, May 28, 2017 at 5:10 AM, Vince Vielhaber <vev@...> wrote:
It was VK3YE's blogpost.? If 40k isn't low enough, sticking the LED where the sun don't shine ain't gonna get it any lower.
Vince - KA8CSH
On 05/27/2017 07:22 PM, Daniel Isaza wrote:
I bet those 40k-400k LDR could work too... too much resistance?, then
put the led further away, cover it with something, paint it, place some
thin film between the two, or even WAY better use a bigger resistor so
the led doesn't shine as bright, what about placing a normal (smaller)
resistor in parallel with the LDR?, etc. The point is to experiment, try
new things, try to make it work with what you have, and of course learn
a lot in the process! :)
73
Dan
On Sat, May 27, 2017 at 3:58 PM, Vince Vielhaber <vev@...
<mailto:vev@...>> wrote:
? ? In trying to figure out what you guys were referring to I did some
? ? digging and the one thing I did find was a blog post saying that a
? ? 40k-400k LDR that he had on hand didn't work.? But one that went
? ? from a few K to about 40k was fine.
? ? Vince.
? ? On 05/27/2017 04:29 PM, Jack Purdum via Groups.Io wrote:
? ? ? ? Also note that Peter encased the LED and LDR in electrical tape
? ? ? ? before
? ? ? ? he actually used it. I think shrink tubing would also work. I, too,
? ? ? ? believe any LDR would work.
? ? ? ? Jack, W8TEE
? ? ? ? ------------------------------------------------------------------------
? ? ? ? *From:* Daniel Isaza <hk4dei@... <mailto:hk4dei@...>>
? ? ? ? *To:* [email protected] <mailto:[email protected]>
? ? ? ? *Sent:* Saturday, May 27, 2017 4:20 PM
? ? ? ? *Subject:* Re: [BITX20] Source of LDR required.
? ? ? ? I'd say just about any LDR will work, go ahead and try that circuit
? ? ? ? using what you have at hand, experiment, be safe, and overall,
? ? ? ? have fun!
? ? ? ? 73
? ? ? ? Dan
? ? ? ? HK4DEI
? ? ? ? On Sat, May 27, 2017 at 7:49 AM, philip yates <phil@...
? ? ? ? <mailto:phil@...>
? ? ? ? <mailto:phil@... <mailto:phil@...>>> wrote:
? ? ? ? ? ? I am trying to get the parts together for the VK3YE AGC, and
? ? ? ? I am
? ? ? ? ? ? having trouble sourcing the LDR,
? ? ? ? ? ? does anyone have the details of a supplier that is suitable,
? ? ? ? or can
? ? ? ? ? ? I use any? LDR ?
? ? ? ? ? ? Thanks
? ? ? ? ? ? Phil - G7BZD
--
? Michigan VHF Corp.? ?? ?
? ? ? ? ? ? ? ? ? ? ? ? ?
|
Re: Source of LDR required.
GL5516 works well. 5 to 10K.? $1.60 for 20 on Ebay.
73
Ken
|
Re: Source of LDR required.
It was VK3YE's blogpost. If 40k isn't low enough, sticking the LED where the sun don't shine ain't gonna get it any lower.
Vince - KA8CSH
toggle quoted message
Show quoted text
On 05/27/2017 07:22 PM, Daniel Isaza wrote: I bet those 40k-400k LDR could work too... too much resistance?, then
put the led further away, cover it with something, paint it, place some
thin film between the two, or even WAY better use a bigger resistor so
the led doesn't shine as bright, what about placing a normal (smaller)
resistor in parallel with the LDR?, etc. The point is to experiment, try
new things, try to make it work with what you have, and of course learn
a lot in the process! :)
73
Dan
On Sat, May 27, 2017 at 3:58 PM, Vince Vielhaber <vev@...
<mailto:vev@...>> wrote:
In trying to figure out what you guys were referring to I did some
digging and the one thing I did find was a blog post saying that a
40k-400k LDR that he had on hand didn't work. But one that went
from a few K to about 40k was fine.
Vince.
On 05/27/2017 04:29 PM, Jack Purdum via Groups.Io wrote:
Also note that Peter encased the LED and LDR in electrical tape
before
he actually used it. I think shrink tubing would also work. I, too,
believe any LDR would work.
Jack, W8TEE
------------------------------------------------------------------------
*From:* Daniel Isaza <hk4dei@... <mailto:hk4dei@...>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Saturday, May 27, 2017 4:20 PM
*Subject:* Re: [BITX20] Source of LDR required.
I'd say just about any LDR will work, go ahead and try that circuit
using what you have at hand, experiment, be safe, and overall,
have fun!
73
Dan
HK4DEI
On Sat, May 27, 2017 at 7:49 AM, philip yates <phil@...
<mailto:phil@...>
<mailto:phil@... <mailto:phil@...>>> wrote:
I am trying to get the parts together for the VK3YE AGC, and
I am
having trouble sourcing the LDR,
does anyone have the details of a supplier that is suitable,
or can
I use any LDR ?
Thanks
Phil - G7BZD
--
Michigan VHF Corp.
|
Craig Thibodeaux
W9ZIM
Allard PE1NWL
ON2AAV
Raj vu2zap
Ken T VK2HXX