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.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

But, wouldn't that cause the PLL to trip the Lock Detect circuitry? It would "see" it as an "Out Of Lock" condition, and shut down the TX switching circuit.

It could be done secondarily like adding a Direct Sequence modulator (Spread Spectrum) to the signal between the TX mixer and the TX buffer. Or before the Carrier injection side of the TX mixer, after the SSB filter if an SSB radio.

[QUOTE="NZ8N, post: 766922, member: 51368"] But, wouldn't that cause the PLL to trip the Lock Detect circuitry? It would "see" it as an "Out Of Lock" condition, and shut down the TX switching circuit. It could be done secondarily like adding a Direct Sequence modulator (Spread Spectrum) to the signal between the TX mixer and the TX buffer. Or before the Carrier injection side of the TX mixer, after the SSB filter if an SSB radio. [/QUOTE]

Top Bottom