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VK3BHR LC meter inductance measurement problem
#homebrew
I have made many for friends. Quality of prime components matter. L1 could be 100uH, but with 100uh marking we get 86uh only in market C1 and c2 caps are to be close to. I used my box caps after precs
I have made many for friends. Quality of prime components matter. L1 could be 100uH, but with 100uh marking we get 86uh only in market C1 and c2 caps are to be close to. I used my box caps after precs
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By
MVS Sarma
· #86033
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Bitx40 PC Board Image Please
#bitx40
whether you wanted thro hole version of Farhan's bitx40?arma
whether you wanted thro hole version of Farhan's bitx40?arma
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By
MVS Sarma
· #84105
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Need new v4 raduino to work with green display
#ft8
#arduino
#bitx20
#bitx20help
#digital
It does work with old raduino and green 2 line display. The pcb will.be plugged leaving 2 pinsextra prodided for glcd. This what i read at the first version of v6 Regards Sarma vu3zmv
It does work with old raduino and green 2 line display. The pcb will.be plugged leaving 2 pinsextra prodided for glcd. This what i read at the first version of v6 Regards Sarma vu3zmv
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By
MVS Sarma
· #83520
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What Happened To Versions 3, 4 and 5
Good luck Bruce. If no posts are there, either they are set and working, hopefully. Here and there we can assume some failures due to nature or man made mistakes. Last week i set one v3 that had Tx fa
Good luck Bruce. If no posts are there, either they are set and working, hopefully. Here and there we can assume some failures due to nature or man made mistakes. Last week i set one v3 that had Tx fa
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By
MVS Sarma
· #80878
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#ubitxv6 #firmware
#ubitxv6
#firmware
In raduino tft description attached, you find at second bullet, data regarding pin out being same as 16x2 display.
In raduino tft description attached, you find at second bullet, data regarding pin out being same as 16x2 display.
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By
MVS Sarma
· #80840
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#ubitxv6 #firmware
#ubitxv6
#firmware
In the v6 description,i remember Farhan mentoned that old raduino with 16*2 display can be used with propey planing it in the socket. As such in the same psition, kd8cec firmware with nextion could al
In the v6 description,i remember Farhan mentoned that old raduino with 16*2 display can be used with propey planing it in the socket. As such in the same psition, kd8cec firmware with nextion could al
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By
MVS Sarma
· #80839
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Revisiting lower power output on 40m, V6
#ubitx
#v6
Try cw within the band not at the band lower or upper edge. Sarma vu3zmv
Try cw within the band not at the band lower or upper edge. Sarma vu3zmv
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By
MVS Sarma
· #80592
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MY A to Z *Bitx
Good effort. Await to see the performance as you assemble, Gerad. Congrats Sarma vu3zmv
Good effort. Await to see the performance as you assemble, Gerad. Congrats Sarma vu3zmv
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By
MVS Sarma
· #80587
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Compiling µBITXv6
Jack,last time when i bought 4 nanos,i had issues with loading firmware. Om mahesh ,vu2iia suggested to check definging the nano as UNO. It started taking firmware. It could be that some one bootloade
Jack,last time when i bought 4 nanos,i had issues with loading firmware. Om mahesh ,vu2iia suggested to check definging the nano as UNO. It started taking firmware. It could be that some one bootloade
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By
MVS Sarma
· #80569
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ubitx 6.2 bench calibration frequencies?
Pl rethink . Clk 0 is not 11. But 11.0555 odd. Regards Sarma vu3zmv
Pl rethink . Clk 0 is not 11. But 11.0555 odd. Regards Sarma vu3zmv
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By
MVS Sarma
· #80517
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construction
Appears loose pins on the 3 wire power plug. Especially if Red wire is loose and some leakage current on the brown Tx wire somewhere could be an answer for 3.5mA Sarma vu3zmv
Appears loose pins on the 3 wire power plug. Especially if Red wire is loose and some leakage current on the brown Tx wire somewhere could be an answer for 3.5mA Sarma vu3zmv
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By
MVS Sarma
· #80361
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D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion
Perfect practical approach.
Perfect practical approach.
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By
MVS Sarma
· #80287
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Ver3 to CEC
Rajesh, did youbuse nextion or 16*2 lcd ? Eitherway you have to configure it in ubitx.h file before really uplading. I assume you might have done it. However try to check . All the best. Sarma vu3zmv
Rajesh, did youbuse nextion or 16*2 lcd ? Eitherway you have to configure it in ubitx.h file before really uplading. I assume you might have done it. However try to check . All the best. Sarma vu3zmv
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By
MVS Sarma
· #80270
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UBITX use with 144 MHz transverter
Good effort. I an not a coding personat all I suppose that we can do this way. before the line which displays the frequency add a clause, using a spare pin.. if the pin is high add a fixed value to th
Good effort. I an not a coding personat all I suppose that we can do this way. before the line which displays the frequency add a clause, using a spare pin.. if the pin is high add a fixed value to th
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By
MVS Sarma
· #80256
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Easy Bitx Kits
Looks pretty. Congrats. Sarma vu3zmv
Looks pretty. Congrats. Sarma vu3zmv
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By
MVS Sarma
· #80163
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LM386 CONNECTION
I fell that calibration is not related to lm386 or tda2822 ir discrete audio. Some one said that. I say this Msny say many things. It is for you too to try to analyse. Namaste.
I fell that calibration is not related to lm386 or tda2822 ir discrete audio. Some one said that. I say this Msny say many things. It is for you too to try to analyse. Namaste.
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By
MVS Sarma
· #80147
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LM386 CONNECTION
In v5 and v6 only lm386 has been used. Even in ver 3 the component failed only because of plugging mono external speaker pin into stereo socket. Secondly it failed due to higher voltages lije 13.8 or
In v5 and v6 only lm386 has been used. Even in ver 3 the component failed only because of plugging mono external speaker pin into stereo socket. Secondly it failed due to higher voltages lije 13.8 or
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By
MVS Sarma
· #80145
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arduino-yun-rev-2 anyone looked at feasibility of swapping out the Arduino Uno for the Yun?
I understand tha YUN is now a retired board with atmega32 While get much improved ones , cheap enough, i feel we can try better ones, especially when we use for multipke project trials. Regards Sarma
I understand tha YUN is now a retired board with atmega32 While get much improved ones , cheap enough, i feel we can try better ones, especially when we use for multipke project trials. Regards Sarma
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By
MVS Sarma
· #80082
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Power supply
You dont have to grinn. We have friends at hyderabad, india reaching indonesia with 8 to 10w aith a direct ubitx. Be sure that you can optimize and ruggedize your antenna with minimum feeder loss. You
You dont have to grinn. We have friends at hyderabad, india reaching indonesia with 8 to 10w aith a direct ubitx. Be sure that you can optimize and ruggedize your antenna with minimum feeder loss. You
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By
MVS Sarma
· #79975
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RFI on 2 meters from uBitx
Cool. Shane, concept appreciated. Congrats. Sarma vu3zmv
Cool. Shane, concept appreciated. Congrats. Sarma vu3zmv
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By
MVS Sarma
· #79888
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