Re: Birdie at 7199 - a surprising observation!
Is this new standard, a raduino.ino sketch version?? Probably what happened is when you uploaded a sketch, your IDE software uploaded an updated Etherkit Si5351 library ?with the sketch. That's easy to fix. Just click on sketch at the top of the Arduino IDE software, go down the menu to include library, move right to manage libraries at the top of that menu. Type Etherkit in the search bar. Look for Etherkit Si5351 in the results and look at the version number installed. If it is higher than 2.0.1 then click on the underlined More Info at the bottom of the description. Select version 2.0.1 and install. Then re-upload your sketch. The newer libraries produce a louder click when changing frequency. The older versions work great without trouble. And that's usually all there is to it.
|
That was meant to be printFrequency(c, frequency); Sorry
|
Hi Andrew I did just try your suggestion and had this message. 'printFrequency' was not declared in this scope Thank you for the info thou.
|
Re: Birdie at 7199 - a surprising observation!
I am having sort of the opposite problem. I had the original Raduino sketch loaded with no tuning clicks and no birdie at 7.199. Then I loaded? the new standard?? version 1.05 and now I have a very strong birdie at 7.199. The Si5351 drive is set to 4mA Any suggestions or clues to fix this?
PJH, N7PXY
|
Take a look at this mod by Don Cantrell. I've done this on my BitX40, it was easy to do and works really well.? http://bitxhacks.blogspot.co.uk/2017/01/a-simple-s-meter-for-bitx-40-from-don.html Also check out my Raduino sketch which takes the input from the s-meter and draws a graph :- https://github.com/azw409/BitX40-RaduinoExtra
|
Re: VFO/BFO selecting outputs
Good! I had borrowed that code from Farhan's original script, which compiles with the older etherkit library. All three of the lines of code I gave you should either reference CLK0 or CLK2, I gave you a mix. ?The Raduino with cabling as delivered and described in the Wireup uses CLK2 for the VFO. ?So I'd guess most people will want to use CLK0 for the BFO.
On Sun, Apr 9, 2017 at 01:46 pm, Jonathan Peakall wrote: Got CLK2 going! ?
|
Re: VFO/BFO selecting outputs
Got CLK2 going! I did have to change:
si5351.set_freq(11998500L*100ULL , SI5351_PLL_FIXED, SI5351_CLK2);
to
si5351.set_freq(11998500L*100ULL , SI5351_CLK2);
due to compiler complaints. Thanks for the help! Now off to solder on some coax and remove the xtal.
Jonathan - KK6RPX
toggle quoted message
Show quoted text
On 4/9/2017 9:40 AM, Jerry Gaffke via Groups.Io wrote:
Add this code to the bottom of the setup() function in the sketch:
//si5351.drive_strength(SI5351_CLK0, SI5351_DRIVE_2MA);
si5351.output_enable(SI5351_CLK0, 1);
si5351.set_freq(11998500L*100ULL , SI5351_PLL_FIXED, SI5351_CLK2);
T
|
I am hoping my muffled audio is just some kind of input circuit mismatch with the new RS electret microphone element vs the original electret device. The more technical answers aren't ones that I understand or can change. These little electret capsules all look the same but have different electrical properties. I am trying to find the OEM specs so I can be sure I am using a very similar electret.
Sent from Mike's iPad WA1MAD
|
Might be worthwhile to add a small series resistance and some sort of voltage limiter
(Zener or active limiting circuit) to insure that the ADC input does not exceed 5V.?
Returns from the ADC will be zero-to-1023 which represents zero-to-5V levels.? You
will need to scale this for 5V and then convert it to S-units?? The ARRL handbook
refers to an
old standard of? S9 calibrated at 50 microvolts RF input and 6 dB
per S
unit down from that reference point.
Arv
_._
On Sun, Apr 9, 2017 at 1:13 PM, Jack Purdum via Groups.Io <econjack@...> wrote: Mark:
In the setup() function, you'll need to add a line:
pinMode(A2, INPUT);
which sets up the pin to serve as an analog input. Before connecting the circuit to the Nano, I'd measure that max voltage that you're seeing on the output of your circuit. The analog pins on the Nano are 5V max, and that feeds a 10-bit ADC, so the max granularity is 0-1023. If that value exceeds 5V, you'll need to use a voltage divider to get it within range. Once you know the max voltage, you can use the map() function to control the reading. The in loop(), you'd have something like:
void loop() { ? ?int value, displayValue;
? ?value = analogRead(A2); ? ?displayValue = map(value, 0, 1023, 0, 100);
? ?// additional code... }
This code would display the value read on pin A2 with a range limit of 0 to 100. ??
Jack, W8TEE
Hi all I have been looking to add a s meter to my bitx 40. Looking on Goggle for a simple s meter circuit and came across one that can connect to the raduino A2 pin Now I am not that clever with the codes for the raduino and find it very difficult to add this or that and not knowing where in the program to put said new snip of code. Sorry if this has been covered before but I am struggling with this.
|
Thank you Jack but that went right over my head. I did try to add pinMode(A2, INPUT); To where I thought was the setup but had a load of errors straight away. Like I said I'm not one for this programming lark.
|
Re: The Users User Manual
The numbered pins correspond to the numbered plug parts. And the plugs numbered wire connection points correspond to the plugs numbered shaft points. Pin #1 is ground or (-) negative Plug parts #1 are sleeve and (-) ground. Pin #2 is plug tip and left channel. Pin #3 is used with speaker left channel.
Pin #4 is plug ring and right channel. Pin #5 is used with speaker right channel. Do you see that the speaker channel contacts are linked to the headphone pins through a closed switch? Pins #2 and #3 are switches that open when a plug is inserted. Disconnecting the speaker left channel. Pins #4 and #5 are also switches and open when a plug is inserted. Disconnecting the speaker right channel. To connect a single speaker to the jack, you will need attach the brown wire of a two pin connector to the (+) pos terminal of the speaker. Then attach the black wire to pin #3 or #5, then add another black wire from the corresponding switched contacts on the jack. Like, pins #2 or #4 connect to (-) neg terminal on speaker. Pins #3 and #5 break contact and open when a plug is inserted. Same with pins #4 and #5.A jumper wire soldered across pins #2 and #4 will enable monaural sound in both headphone speakers. I haven't used these jacks yet. I only just now looked at them. I built a hand mic from a small clear plastic box, small panel mount button switch and the mic with a four wire coiled phone cord and hard wired it all in. And the speaker has the basic two wires soldered on. But a toy like this never really finished. I have wondered if the stereo jack can support the four wires of a hand mic with PTT sharing a common ground with the mic.? One final note.The archives have schematics and discussions for other jacks people have preferred to use. If you have or need something else better suited for your enclosure, by all means do it. I just meant this to be an at a glance answers now kind of thing. Corrections and additions are encouraged.
|
That's what happens when you come back for a few edits, but don't do a final proof before hitting send. Should read: ?"The flash of light was likely one of the traces blowing between PA 12v and the IRF510" I doubt the IRF510 blew.
On Sun, Apr 9, 2017 at 10:51 am, Jerry Gaffke wrote: The flash of light was likely one of the traces blowing between PA 12v and the IRF510 blowing. ?
?
|
Re: CLAREMORE, OK Hamfest this weekend and my BITX40
I am more than satisfied with the performance of my Bitx40.? It exceeded my expectations and the support from the group emails has driven me further to explore.? If I wanted a 40M qrp rig I would have bought a commercial rig$$$$.? I wanted to play with transceiver circuits and learn more how radio and Audrino worked.? My radio worked 2nd try, because I used a 4 pin mic and socket and wired it wrong.? I have quiet clicks, doesn't bother me lets me know I am tuning.? This is a great product for Hams.? Those who will get the screwdriver and solder iron out and fix things.? I have no experience in electronics and was able to make this radio work great, so great in fact I have a Kenwood TS-520 that works top notch and haven't used it since getting my Bitx on the air.? I even bought a 2nd Bitx, I liked it so much.? Keep up the good work and let them ladies know the coils look great.? 73
On Wed, Apr 5, 2017 at 2:35 AM, Ashhar Farhan <farhanbox@...> wrote:
|
Mark:
In the setup() function, you'll need to add a line:
pinMode(A2, INPUT);
which sets up the pin to serve as an analog input. Before connecting the circuit to the Nano, I'd measure that max voltage that you're seeing on the output of your circuit. The analog pins on the Nano are 5V max, and that feeds a 10-bit ADC, so the max granularity is 0-1023. If that value exceeds 5V, you'll need to use a voltage divider to get it within range. Once you know the max voltage, you can use the map() function to control the reading. The in loop(), you'd have something like:
void loop() { ? ?int value, displayValue;
? ?value = analogRead(A2); ? ?displayValue = map(value, 0, 1023, 0, 100);
? ?// additional code... }
This code would display the value read on pin A2 with a range limit of 0 to 100. ??
Jack, W8TEE
From: Mark via Groups.Io <mark2w0jmk@...>
To: [email protected]
Sent: Sunday, April 9, 2017 12:36 PM
Subject: [BITX20] Bitx-40 S meter
Hi all I have been looking to add a s meter to my bitx 40. Looking on Goggle for a simple s meter circuit and came across one that can connect to the raduino A2 pin https://1.bp.blogspot.com/-r1nfdAF5utY/WHuP9-bzXAI/AAAAAAAAbfs/be-Xrbvh7Fgx2PLSAB-aQ8M3egPGJfdcACLcB/s1600/Nd6t%2Bs%2Bmeter.jpg Now I am not that clever with the codes for the raduino and find it very difficult to add this or that and not knowing where in the program to put said new snip of code. Sorry if this has been covered before but I am struggling with this.
|
Hi Farhan and friends
The link for the HF phase RX is ; I build also one phase transmitter ...using the same modules in? an inverted? way ...I will try to build a transceiver.... The main tip was? an All Pass Band Pass Filter ... using a TL084 ... made with QuadNet software looking for More than 40dB supression and ease to find parts. the link is : This all pass filter is for 300Hz to 3kHz ...and I use a band pass filter ... another TL084 : link The final results in a better supression than 40dB .... another aplications is to transform a SDR receiver in one Rx who dont need a PC ...link 73 from py2ohh miguel
|
Re: CLAREMORE, OK Hamfest this weekend and my BITX40
I agree there is a ration of investment/rewards.. and for many people that varies. I have a guy in my town my age, who only drives a 1928-1930 Ford Model A.. I can't tell which tear because he does have turn signals and uses the cowl lights (1930-31 model) as blinkers. I understand he has had it since high school. I miss mine, I had to give it up and sell it when I was drafted. Everyone wanted to "keep it" for me, but also wanted the key.. ?
So this will be the last post from me.. The BITX40 went to Claremore and actually 4 guys as a group decided to buy it.. I heard, "If you don't buy it, I will" and out came 4 $20 bills. It included the? new instrument case an new ICOM hand mike, extra large heat sink, matching knobs, and a nice round speaker.. So Long and Farewell, I will visit the site in 3-6 months to see what progress has been made. Larry W8LM
|
John: Get a copy of W1FB's QRP Notebook and W1FB's Design Notebook. I found both on Amazon for about $30 USD each. Doug not only presents useful circuits, he tells you why a component was used and what parts/values will work. EMRFD is also very good, but I find it written at a higher technical level.
James KE4MIQ
|
Heatsink shorted to ground sounds right. ?The flash of light was likely one of the traces blowing between PA 12v and the IRF510 blowing. ? Make sure the heatsink is not shorted, then gingerly apply power (perhaps through a fuse of ?2 Amps) into PA 12v. ?Check to see if 12v is getting to the top of the IRF510 (the IRF510 mounting tab and heatsink are connected to the drain, which is connected by traces to L8). ?You should see 12v on the drain even when in receive mode. ?If not, you have a trace to patch. ?Or possibly the wire around L8. ?Either should be easy to repair. ?
On Sun, Apr 9, 2017 at 10:35 am, Jonathan Peakall wrote: When I got mine the heat sink had an intermittent short to ground. Luckily it wasn't dead shorted and I was running it on a current limiting supply. I removed it, filed enough off the bottom to be able to place double layer of tape and then put it back. I'd check to see if you have a short on the heat sink.
?
|
Re: VFO/BFO selecting outputs
Ah, here's that bug I was warning you about. That last line of the three lines of code should end with _CLK0, ?not _CLK2.
On Sun, Apr 9, 2017 at 09:40 am, Jerry Gaffke wrote: si5351.set_freq(11998500L*100ULL , SI5351_PLL_FIXED, SI5351_CLK2); ?
|
Ouch!
When I got mine the heat sink had an intermittent short to ground. Luckily it wasn't dead shorted and I was running it on a current limiting supply. I removed it, filed enough off the bottom to be able to place double layer of tape and then put it back. I'd check to see if you have a short on the heat sink.
Jonathan
toggle quoted message
Show quoted text
On 4/9/2017 9:58 AM, Josh Walton via Groups.Io wrote: That’s the sound I heard when I first powered up my beautiful BITX40. I immediately cut the power, traced all my connections, everything looked great. Cautiously I applied power and turned on the radio, it tuned in perfectly. After some playing around I tried to transmit… nothing. No power out. Well I guess it was the transmit circuits that made the pop sound when I powered it up.
I believe the source of the snap pop (a minor flash too) was close to the PA-PWR input, close to the larger black torrid and the heat-sinked transistor. There is no visual damage on the components or board. Any ideas on how to trouble shoot?
Oh, just a note, the power supply was a powerwerx switching power supply, so nice and clean. Any help would be great!
Thanks!
Josh
KK4LGZ
|
Mark