You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
I just picked this 949 up and started looking into it is it normal for the third leg on the white and blue adjustment pods to not be soldered onto the board?
For the circuit it sources to - already ties that line thru it, from that pot - to ground or as a supply rail - so it's more of a trimmer on a divider "branch" of the circuit the "pod" is on.
Squelch control is one of these "pod" designs. You just need to tweak the supply current thru the pod to limit how "tight" squelch engages - and the circuit does the rest. Helps set linearity or in other instances - how far the S/RF meter goes for a set signal strength or power level
Kinda like how you set the "Dimmer" function on your vehicle - the dash lights are dimmed at night to help with keeping you night vision instead of the glare from full brightness you'd need them to produce during the day.
This may be more than you need to know - but this isn't just for you - it's for the others following along at home that may want to understand more about this process.
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.