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Limitations of roofing filters

| December 1, 2011

Jonathan Constable & Tatiana McArthur M5FUN & MM6TAT

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Spread Spectrum

| December 1, 2011

Andy Talbot G4JNT

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USB to COM interfacting

| October 1, 2011

Andy Talbot G4JNT

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Switched band pass filters & transmit amplifier stages

| February 1, 2011

Eamon Skelton EI9GQ

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An alternative mode in HF mobile antennas

| February 1, 2011

Peter Dodd G3LDO

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Moonraker GP2500 vertical

| February 1, 2011

Steve Nichols G0KYA

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