FREQUENCY BARACUDA

[tifred]

Hello.

Who could help me add a frequency adjustment on the barracuda??

THANK YOU

[kt315]

you can not use freq above 600Hz because it will be high tone.
is it your intent to decrease the tone to 100...200Hz?

[tifred]

hello

I do not want to change tone, but add a frequency adjustment. I have a lot of interference on the beach or I am with radio ferry boats.

On TDI, there is a frequency adjustment.

little being too I have to learn how it works

[kt315]

in Bara the sound tone and the TX freq is same, same schematic. if you change the freq you get sound changing too.
also, meeting question, is you Bara DIY or fabricmade?

[surfdetector]

hello

I do not want to change tone, but add a frequency adjustment. I have a lot of interference on the beach or I am with radio ferry boats.

On TDI, there is a frequency adjustment.

little being too I have to learn how it works

Here is a thread discussing PPS adjustment:

https://www.geotech1.com/forums/showthread.php?24194-variable-pulse-width-and-period&p=236919#post236919

[kt315]

Here is a thread discussing PPS adjustment:
https://www.geotech1.com/forums/show...919#post236919

oh mamma mia! you opened all my small secrets! )))) I SEE MY BARA SWEET SCH! https://www.youtube.com/watch?v=6-Em9k3pFjM

[tifred]

in Bara the sound tone and the TX freq is same, same schematic. if you change the freq you get sound changing too.
also, meeting question, is you Bara DIY or fabricmade?

hi kt315 thank you ,my baracuda is diy version Geotech Baracuda - REV-A.

hi Surfdetector, thank you

[surfdetector]

my baracuda is diy version Geotech Baracuda - REV-A.

Look at Fig. 4 ( TX Oscillator) on page 12 of the build document, try putting a Pot in series with R10

[kt315]

Look at Fig. 4 ( TX Oscillator) on page 12 of the build document, try putting a Pot in series with R10

for both. try to read this topic https://www.geotech1.com/forums/show...d-Interference
i hope this help. i wasted much time to collect whole info in one place.