Re: Transmit Output Power (CW)
#v5
Stage 1 - Replace Q90 with BFR106, replaced R81 with 2.7k.? Here are the results.? I just did the 2-tone test, because the 300/3000 Hz are tapered down so far by the crystal filter.? ?I just used those to help me pick a good BFO frequency.?? As an aside, removing that teensy SMD 2N3904 and replacing it with the likewise teensy BFR106, was one of the more tedious things I have done... I could handle not doing that again... Summary:? Honestly, I don't see tons of change.? I started with RV1 set for minimum drive, and slowly increased it until the 80 meter (3.5 MHz) CW output power on my digital dummy load was equal to the output power that I saw in the baseline configuration.? Then I ran the rest of the numbers.? Power output went up in some cases, down in other cases.? In CW especially, it really didn't look like the output power "flattened out" across the bands.? I will say that in SSB, it does look like there were more power increases than decreases, with the result that the SSB output power level looks "flatter". Hopefully this is useful to someone??? I'll keep posting as I run through each stage.
| Transmit configuration: |
? |
? |
? |
? |
? |
? |
? |
| ? |
Replaced Q90 with BFR106, replaced R81 with 2.7k |
? |
? |
? |
? |
? |
? |
| ? |
RV1 adjusted to match ¡°Baseline¡± power output on 80 meters |
? |
? |
? |
? |
? |
? |
| ? |
BFO=11,055,935 |
? |
? |
? |
? |
? |
? |
| Power measurement: |
? |
? |
? |
? |
? |
? |
? |
| ? |
ATU |
N7DDC ATU from Russia; configured for 150W |
? |
? |
? |
? |
? |
| ? |
DDL |
Digital Dummy Load; configured for QRP; calibrated against ATU at 5.3W w/ RS-HFIQ |
? |
? |
? |
? |
? |
| ? |
? |
? |
? |
? |
? |
? |
? |
| ? |
? |
CW |
? |
? |
? |
2-tone SSB |
? |
| Frequency |
SWR |
Watts-ATU |
Watts-DDL |
? |
Sideband |
Watts-ATU |
Watts-DDL |
| 3500000 |
1.00 |
7.30 |
7.63 |
? |
LSB |
5.10 |
2.68 |
| 4000000 |
1.00 |
6.00 |
6.45 |
? |
LSB |
5.20 |
2.65 |
| 5332000 |
1.01 |
4.10 |
4.15 |
? |
LSB |
4.90 |
2.54 |
| 5405000 |
1.00 |
4.30 |
4.32 |
? |
LSB |
5.00 |
2.72 |
| 7001000 |
1.00 |
5.30 |
5.47 |
? |
LSB |
5.50 |
3.14 |
| 7300000 |
1.00 |
4.60 |
4.62 |
? |
LSB |
5.50 |
3.31 |
| 10100000 |
1.00 |
4.50 |
4.53 |
? |
USB |
3.70 |
2.67 |
| 10150000 |
1.00 |
4.10 |
4.10 |
? |
USB |
3.40 |
2.42 |
| 14000000 |
1.01 |
5.40 |
5.51 |
? |
USB |
3.30 |
2.02 |
| 14350000 |
1.01 |
4.90 |
5.01 |
? |
USB |
3.20 |
1.90 |
| 18068000 |
1.02 |
3.80 |
3.62 |
? |
USB |
3.50 |
2.09 |
| 18168000 |
1.02 |
3.60 |
3.44 |
? |
USB |
3.40 |
2.00 |
| 21000000 |
1.04 |
4.30 |
4.18 |
? |
USB |
2.80 |
1.75 |
| 21450000 |
1.05 |
5.80 |
5.81 |
? |
USB |
3.50 |
2.27 |
| 24890000 |
1.04 |
3.10 |
2.82 |
? |
USB |
2.00 |
1.24 |
| 24990000 |
1.04 |
3.10 |
2.78 |
? |
USB |
1.90 |
1.23 |
| 28000000 |
1.04 |
2.80 |
2.44 |
? |
USB |
2.50 |
1.37 |
| 29700000 |
1.03 |
2.90 |
2.49 |
? |
USB |
1.70 |
1.06 |
|
|
|
Re: uBitX CEC v 1.1 Iambic A not working
Hi Bill,
Will have to check that with a keyer. I thought the CEC firmware had that fixed without extra resistors. Two other folks advised the resistors and supplied the diagram. It works fine on cw and the builder never used it on cw. Will have to try a keyer. I probably won¡¯t do much with it but it was so inexpensive and already put together. Fun to play with but have too many other radios that work without fuss if I really want to get on the air. I am a tinkerer.
Thanks for your response.
David J. Wilcox K8WPE¡¯s iPad
toggle quoted message
Show quoted text
On Mar 29, 2020, at 11:38 AM, Bill Cromwell <wrcromwell@...> wrote:
?Hi Dave,
It isn't clear whether or not your uBitX goes into transmit and/or actually transmits using the keyer and paddles. I have a V3 and it required some resistors to be configured and maybe adjusted a little to get it working with paddles. I don't know if the CEC software eliminated that requirement. Mine is wired up for a straight key only and I use an external keyer for iambic use. It does have the CEC software for use with the two line LCD display.
So... does it transmit when using iambic keyer in spite of no sidetone?
73,
Bill KU8H
On 3/29/20 10:48 AM, David Wilcox via Groups.Io wrote:
I am a newbie to the uBitX but have been following this group for a few years. I was able to pick up a uBitX v3 with the touch screen and CEC v 1.1 installed while at HamCation this winter. It works with straight key and I can get into the menu and set the Key to Iambic A or B but when I do and insert a set of paddles there is no audio (sidetone) or output. It works as it should with a straight key.
Can anyone assist me with trouble shooting this? I have reviewed Ians manual for v 1.1 but it tells only how to make the key type changes... It does work on ssb and I have maybe 10 w output on peaks on my inaccurate MFJ tuner output indicator. Also have 10 w out on cw. The key speed is set at 13 wpm. I also have turned the rig off and on again after making changes to set the changes as some have suggested for other firmware. I don't know if that is necessary here as it doesn't seem needed for other changes. Just trying to give all the info I can.
The builder, K3PNI, had done a nice job of building and installing in a case but I have bugged him enough with other questions.
Also, while I am here the builder's call shows up on the start screen. How can I change that to my call????
Thanks.
Dave K8WPE since 1960 (and old dog trying to learn new tricks) --
bark less - wag more
|
Sorry, I pulled the trigger too fast before I realized this would not work for my needs.? Can I please cancel my order, I sent an email earlier and just want to follow up here.
Thanks, Robert - glock35ipsc
|
Re: uBITX v6 is now DEAD !!!!!
#v6
Ralph,
Have you tried removing the Nano from the Raduino to rule out any supply issues?? If the Nano program loads connected to the USB port on the computer and NOT in the Raduino, then I would suspect there is a problem with the 5 volt regulator or the Raduino power system.
Just one more thing to try.
73
Evan
AC9TU
|
Re: Transmit Output Power (CW)
#v5
Now there are some real-world numbers.? These are what I am seeing.
On Saturday, March 28, 2020, 11:51:00 PM CDT, Rob French (KC4UPR) <kc4upr@...> wrote:
Alrighty... I finally got around to a couple of things: (1) Building myself a "digital dummy load" using my QRP Labs 20W dummy load and an Arduino.? I calibrated it against my ATU's wattmeter, which isn't probably a great source, but I used the output power of my RS-HFIQ, which I feel is pretty accurate at 5W +/- a little. (2) Reset RV1 to the "stock" configuration, about mid-range.? Also tweaked my BFO setting to make sure I was getting some power out with both 300 Hz and 3000 Hz audio. (3) Hooked up the mic input to my computer so I could play those 300, 3000, and 700-1900 Hz tone wave files into it. Here are my results in the "essentially stock" configuration.
| Transmit configuration: |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
Factory (RV1 at center) |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
BFO=11,055,935 |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| Power measurement: |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
ATU |
N7DDC ATU from Russia; configured for 150W |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
DDL |
Digital Dummy Load; configured for QRP; calibrated against ATU at 5.3W w/ RS-HFIQ |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
? |
CW |
? |
? |
? |
300Hz SSB |
? |
3000 Hz SSB |
? |
2-tone SSB |
? |
| Frequency |
SWR |
Watts-ATU |
Watts-DDL |
? |
Sideband |
Watts-ATU |
Watts-DDL |
Watts-ATU |
Watts-DDL |
Watts-ATU |
Watts-DDL |
| 3500000 |
1.00 |
7.20 |
7.35 |
? |
(LSB) |
1.40 |
1.17 |
1.00 |
0.90 |
5.20 |
2.64 |
| 4000000 |
1.00 |
5.30 |
5.51 |
? |
(LSB) |
1.40 |
1.14 |
0.90 |
0.85 |
5.40 |
2.68 |
| 5332000 |
1.01 |
4.00 |
3.91 |
? |
(LSB) |
1.60 |
1.35 |
1.10 |
1.01 |
5.00 |
2.70 |
| 5405000 |
1.00 |
4.00 |
3.96 |
? |
(LSB) |
1.70 |
1.45 |
1.20 |
1.10 |
5.20 |
2.71 |
| 7001000 |
1.00 |
4.80 |
4.73 |
? |
(LSB) |
2.40 |
1.82 |
1.50 |
1.40 |
5.80 |
2.37 |
| 7300000 |
1.00 |
4.00 |
3.91 |
? |
(LSB) |
2.60 |
2.00 |
1.60 |
1.59 |
5.70 |
3.38 |
| 10100000 |
1.00 |
5.00 |
4.99 |
? |
(USB) |
2.80 |
2.39 |
2.60 |
2.30 |
3.70 |
2.50 |
| 10150000 |
1.00 |
4.60 |
4.50 |
? |
(USB) |
2.60 |
2.17 |
2.40 |
2.13 |
3.40 |
2.27 |
| 14000000 |
1.01 |
4.80 |
4.70 |
? |
(USB) |
1.50 |
1.23 |
1.30 |
1.21 |
3.30 |
1.88 |
| 14350000 |
1.01 |
4.40 |
4.32 |
? |
(USB) |
1.40 |
1.15 |
1.20 |
1.12 |
3.20 |
1.82 |
| 18068000 |
1.02 |
4.30 |
4.13 |
? |
(USB) |
2.40 |
1.83 |
1.90 |
1.83 |
4.00 |
2.45 |
| 18168000 |
1.02 |
4.40 |
4.18 |
? |
(USB) |
2.40 |
1.84 |
1.90 |
1.85 |
4.00 |
2.48 |
| 21000000 |
1.04 |
5.00 |
4.70 |
? |
(USB) |
1.40 |
1.21 |
1.40 |
1.20 |
2.60 |
1.49 |
| 21450000 |
1.05 |
6.00 |
5.85 |
? |
(USB) |
1.60 |
1.36 |
1.50 |
1.35 |
3.20 |
1.83 |
| 24890000 |
1.04 |
2.70 |
2.27 |
? |
(USB) |
1.00 |
0.77 |
0.90 |
0.74 |
2.00 |
1.14 |
| 24990000 |
1.04 |
2.70 |
2.28 |
? |
(USB) |
1.00 |
0.77 |
0.90 |
0.75 |
2.00 |
1.16 |
| 28000000 |
1.04 |
3.90 |
3.44 |
? |
(USB) |
1.30 |
0.97 |
1.10 |
0.97 |
2.60 |
1.35 |
| 29700000 |
1.03 |
2.70 |
2.22 |
? |
(USB) |
0.60 |
0.36 |
0.50 |
0.35 |
1.10 |
0.57 |
|
Re: uBitX CEC v 1.1 Iambic A not working
Hi Dave,
It isn't clear whether or not your uBitX goes into transmit and/or actually transmits using the keyer and paddles. I have a V3 and it required some resistors to be configured and maybe adjusted a little to get it working with paddles. I don't know if the CEC software eliminated that requirement. Mine is wired up for a straight key only and I use an external keyer for iambic use. It does have the CEC software for use with the two line LCD display.
So... does it transmit when using iambic keyer in spite of no sidetone?
73,
Bill KU8H
toggle quoted message
Show quoted text
On 3/29/20 10:48 AM, David Wilcox via Groups.Io wrote: I am a newbie to the uBitX but have been following this group for a few years.? I was able to pick up a uBitX v3 with the touch screen and CEC v 1.1 installed while at HamCation this winter.? It works with straight key and I can get into the menu and set the Key to Iambic A or B but when I do and insert a set of paddles there is no audio (sidetone) or output.? It works as it should with a straight key.
Can anyone assist me with trouble shooting this?? I have reviewed Ians manual for v 1.1 but it tells only how to make the key type changes... ?It does work on ssb and I have maybe 10 w output on peaks on my inaccurate MFJ tuner output indicator. Also have 10 w out on cw.? The key speed is set at 13 wpm.? I also have turned the rig? off and on again after making changes to set the changes as? some have suggested for other firmware.? I don't know if that is necessary here as it doesn't seem needed for other changes.? Just trying to give all the info I can.
The builder, K3PNI, had done a nice job of building and installing in a case but I have bugged him enough with other questions.
Also, while I am here the builder's call shows up on the start screen. How can I change that to my call????
Thanks.
Dave K8WPE since 1960 (and old dog trying to learn new tricks)
--
bark less - wag more
|
uBitX CEC v 1.1 Iambic A not working
I am a newbie to the uBitX but have been following this group for a few years.? I was able to pick up a uBitX v3 with the touch screen and CEC v 1.1 installed while at HamCation this winter.? It works with straight key and I can get into the menu and set the Key to Iambic A or B but when I do and insert a set of paddles there is no audio (sidetone) or output.? It works as it should with a straight key.
Can anyone assist me with trouble shooting this?? I have reviewed Ians manual for v 1.1 but it tells only how to make the key type changes...? ?It does work on ssb and I have maybe 10 w output on peaks on my inaccurate MFJ tuner output indicator. Also have 10 w out on cw.? The key speed is set at 13 wpm.? I also have turned the rig? off and on again after making changes to set the changes as? some have suggested for other firmware.? I don't know if that is necessary here as it doesn't seem needed for other changes.? Just trying to give all the info I can.??
The builder, K3PNI, had done a nice job of building and installing in a case but I have bugged him enough with other questions.
Also, while I am here the builder's call shows up on the start screen.? How can I change that to my call????
Thanks.
Dave K8WPE since 1960 (and old dog trying to learn new tricks)
|
Joe,
You can start here:
The links to the stock code are there.
Downloading the original firmware will not reset the calibrations.? Those are stored in EEPROM, not program memory.? The best bet is to follow the instruction from Ashhar Farhan for version 6, with the understanding that the version 4 has a different interface and different BFO/SSB crystal frequency.? The process should be very close.? Here is that link:
To point out again, the controls are different, and the BFO frequency is different.? The process to follow is still the same:
1 - Adjust the BFO?
2 - Adjust the frequency
3 - Readjust BFO
Getting to the calibration settings is a multi-step process:
1 - Press the encoder button to go into memory mode
2 - turn to calibration and press the encoder again
3 - press the encoder to go into the menu
4 - turn encoder to get to BFO calibration and press
5 - Adjust BFO with encoder
6 - press PTT button to set
7 - power cycle the rig.
The Frequency calibration is similar to the BFO calibration.
One note, When you go into the calibration settings, the offset values are reset.? This means you are resetting to the "zero" offset each time.? The value is not saved until you press the PTT and power cycle the rig.
Hope this helps.
73
Evan
AC9TU
|
Re: uBITX v6 is now DEAD !!!!!
#v6
https://youtu.be/3n_V3prSJ_E
|
A little more detail: The receiver functions but audio is highly distorted and sensitivity is poor. It seems like the filters are not properly centered. I think I messed up a prior calibration attempt, hence my desire to start over.
|
Hi, I purchased my v4 in December 2018. The receiver initially seemed to work correctly but no longer does. I suspect I messed up a calibration or inadvertently caused some code-related issue.
What I would like to do is to erase all internal calibrations that may exist, reload stock factory code, and recalibrate. I have the needed test equipment to do this. What I don't have is the knowledge of the ubitx code.
Where can I find a repository containing stock code, along with instructions how to compile and load this code, as well as clear any internal calibrations and recalibrate?
73 Joe N9OK
|
Re: uBITX v6 is now DEAD !!!!!
#v6
Does the radio receive?
--
73
Dave
|
Re: uBITX v6 is now DEAD !!!!!
#v6
Have you tried adjusting the contrast control on? the raduino
It shouldn't make any difference whether the radio is on or off as the power is provided via the usb cable.?
--
73
Dave
|
|
|
UBitx 6 Code compulation errors
Hello,
Haven't been here in a while... But I need help trying to compile the Original 6.1 Code and the updated 6.3.1 Update. I have downloaded both and installed correctly in Arduino 1.8.12 but when I go to compile not upload both versions error out. I receive the following error on original:
?nano_gui.cpp:292:11: error: invalid conversion from 'const GFXfont*' to 'GFXfont*' [-fpermissive]
?? gfxFont = &ubitx_font;
?????????? ^
"C:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\4.9.2-atmel3.5.3-arduino2/bin/avr-g++" -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10812 -DARDUINO_AVR_ELEKTOR_UNO_R4 -DARDUINO_ARCH_AVR "-IC:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\Elektor-Uno-R4-for-Arduino-1.8.x\\hardware\\avr\\1.0.0\\cores\\arduino" "-IC:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\Elektor-Uno-R4-for-Arduino-1.8.x\\hardware\\avr\\1.0.0\\variants\\R4" "-IC:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\Elektor-Uno-R4-for-Arduino-1.8.x\\hardware\\avr\\1.0.0\\libraries\\Wire" "-IC:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\Elektor-Uno-R4-for-Arduino-1.8.x\\hardware\\avr\\1.0.0\\libraries\\EEPROM\\src" "-IC:\\Users\\lawri\\AppData\\Local\\Arduino15\\packages\\Elektor-Uno-R4-for-Arduino-1.8.x\\hardware\\avr\\1.0.0\\libraries\\SPI" "C:\\Users\\lawri\\AppData\\Local\\Temp\\arduino_build_671872\\sketch\\ubitx_v6.1_code.ino.cpp" -o "C:\\Users\\lawri\\AppData\\Local\\Temp\\arduino_build_671872\\sketch\\ubitx_v6.1_code.ino.cpp.o"
Using library Wire at version 1.0 in folder: C:\Users\lawri\AppData\Local\Arduino15\packages\Elektor-Uno-R4-for-Arduino-1.8.x\hardware\avr\1.0.0\libraries\Wire
Using library EEPROM at version 2.0 in folder: C:\Users\lawri\AppData\Local\Arduino15\packages\Elektor-Uno-R4-for-Arduino-1.8.x\hardware\avr\1.0.0\libraries\EEPROM
Using library SPI at version 1.0 in folder: C:\Users\lawri\AppData\Local\Arduino15\packages\Elektor-Uno-R4-for-Arduino-1.8.x\hardware\avr\1.0.0\libraries\SPI
exit status 1
invalid conversion from 'const GFXfont*' to 'GFXfont*' [-fpermissive]
This happens on several different types of UNO, Uno Nano, UNO, Elektor UNO R4....
Any Ideas? I should be able to verify code without uploading. The GFXfont and reference to SPI and EEPROM show up in both versions of code. As stated before I have tried more than just the UNO Nano clone board with same results.
If you can please help or have had same issues please let me know, the UNO Clone I used was from another working Radino board. I still have original and don't want to flash it until this bug is fixed.
Thanks,
Jim
|
Re: Transmit Output Power (CW)
#v5
Alrighty... I finally got around to a couple of things: (1) Building myself a "digital dummy load" using my QRP Labs 20W dummy load and an Arduino.? I calibrated it against my ATU's wattmeter, which isn't probably a great source, but I used the output power of my RS-HFIQ, which I feel is pretty accurate at 5W +/- a little. (2) Reset RV1 to the "stock" configuration, about mid-range.? Also tweaked my BFO setting to make sure I was getting some power out with both 300 Hz and 3000 Hz audio. (3) Hooked up the mic input to my computer so I could play those 300, 3000, and 700-1900 Hz tone wave files into it. Here are my results in the "essentially stock" configuration.
| Transmit configuration: |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
Factory (RV1 at center) |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
BFO=11,055,935 |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| Power measurement: |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
ATU |
N7DDC ATU from Russia; configured for 150W |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
DDL |
Digital Dummy Load; configured for QRP; calibrated against ATU at 5.3W w/ RS-HFIQ |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
| ? |
? |
CW |
? |
? |
? |
300Hz SSB |
? |
3000 Hz SSB |
? |
2-tone SSB |
? |
| Frequency |
SWR |
Watts-ATU |
Watts-DDL |
? |
Sideband |
Watts-ATU |
Watts-DDL |
Watts-ATU |
Watts-DDL |
Watts-ATU |
Watts-DDL |
| 3500000 |
1.00 |
7.20 |
7.35 |
? |
(LSB) |
1.40 |
1.17 |
1.00 |
0.90 |
5.20 |
2.64 |
| 4000000 |
1.00 |
5.30 |
5.51 |
? |
(LSB) |
1.40 |
1.14 |
0.90 |
0.85 |
5.40 |
2.68 |
| 5332000 |
1.01 |
4.00 |
3.91 |
? |
(LSB) |
1.60 |
1.35 |
1.10 |
1.01 |
5.00 |
2.70 |
| 5405000 |
1.00 |
4.00 |
3.96 |
? |
(LSB) |
1.70 |
1.45 |
1.20 |
1.10 |
5.20 |
2.71 |
| 7001000 |
1.00 |
4.80 |
4.73 |
? |
(LSB) |
2.40 |
1.82 |
1.50 |
1.40 |
5.80 |
2.37 |
| 7300000 |
1.00 |
4.00 |
3.91 |
? |
(LSB) |
2.60 |
2.00 |
1.60 |
1.59 |
5.70 |
3.38 |
| 10100000 |
1.00 |
5.00 |
4.99 |
? |
(USB) |
2.80 |
2.39 |
2.60 |
2.30 |
3.70 |
2.50 |
| 10150000 |
1.00 |
4.60 |
4.50 |
? |
(USB) |
2.60 |
2.17 |
2.40 |
2.13 |
3.40 |
2.27 |
| 14000000 |
1.01 |
4.80 |
4.70 |
? |
(USB) |
1.50 |
1.23 |
1.30 |
1.21 |
3.30 |
1.88 |
| 14350000 |
1.01 |
4.40 |
4.32 |
? |
(USB) |
1.40 |
1.15 |
1.20 |
1.12 |
3.20 |
1.82 |
| 18068000 |
1.02 |
4.30 |
4.13 |
? |
(USB) |
2.40 |
1.83 |
1.90 |
1.83 |
4.00 |
2.45 |
| 18168000 |
1.02 |
4.40 |
4.18 |
? |
(USB) |
2.40 |
1.84 |
1.90 |
1.85 |
4.00 |
2.48 |
| 21000000 |
1.04 |
5.00 |
4.70 |
? |
(USB) |
1.40 |
1.21 |
1.40 |
1.20 |
2.60 |
1.49 |
| 21450000 |
1.05 |
6.00 |
5.85 |
? |
(USB) |
1.60 |
1.36 |
1.50 |
1.35 |
3.20 |
1.83 |
| 24890000 |
1.04 |
2.70 |
2.27 |
? |
(USB) |
1.00 |
0.77 |
0.90 |
0.74 |
2.00 |
1.14 |
| 24990000 |
1.04 |
2.70 |
2.28 |
? |
(USB) |
1.00 |
0.77 |
0.90 |
0.75 |
2.00 |
1.16 |
| 28000000 |
1.04 |
3.90 |
3.44 |
? |
(USB) |
1.30 |
0.97 |
1.10 |
0.97 |
2.60 |
1.35 |
| 29700000 |
1.03 |
2.70 |
2.22 |
? |
(USB) |
0.60 |
0.36 |
0.50 |
0.35 |
1.10 |
0.57 |
|
The ten cent element is the electret element that came with my V5 kit.? Out of curiosity I looked at an online parts place (probably Digikey) to see what they cost. Looks like 9-10 cents each in some reasonable quantity.? Sounds amazingly good!
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Sorry to be so slow! I just opened up the mic head and removed the contents, unsoldering the old element. I cut a new piece of foam out of foam sheet I had around to fit inside the mic head and also cut a hole in it to fit the new element. It's not very neat looking, but it works. Then I just soldered the mic wires to the new element and stuffed it into the hole in the foam, making sure the open part of the mic cartridge faces toward the front of the mic (it sounds silly to point this out, but I have made this mistake before myself). The element I used is an electret which came with the V5 kit. It's polarized, so don't put the microphone case back together until you have verified that it works. My cartridge was not marked for polarity, and predictably I guessed wrong the first time and had to swap the leads.
I reinstalled the baffling that was in the old microphone - some fiberglass and a rubber sheet of some kind.
Depending on what's in your existinng microphone head it might not be necessary to install new foam - just take out the old cartridge and put in the new.
The D-104 head is very easy to disassemble - 4 screws with slots on front and back of the circular head. Taking the head off the stand first makes it easier to handle. Of course you will have to make sure the three wires involved (two to the mic element and on to PTT) end up at the right pins on the plug that goes into the radio.
Hope this helpful. If not, just ask.
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Ventilator expected price range
How much would it cost? I understand it aims to be a low cost device. But how much low?
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MadRadioModder
David Wilcox K8WPE
_Dave_ AD0B
Raj vu2zap
James Lawrie