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Automatic SWR meter and semi-automatic tuning unit


This circuit, very useful when tuning an antenna, placed behind any "TOS meter" allows the ROS to be displayed directly, without the need for end calibration
post 13 Mar 2024
Automatic SWR meter and semi-automatic tuning unit

Swr Meter Links

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Rosmetro con accoppiatore a due toroidi
Costituito dai due trasformatori T1 e T2 , ognuno con una spira sui primari, costituita da cavo cossiale, e da N spiresui secondari opportunamente collegati

Setting the SWR of Your Antenna
SWR standing wave ratio, is a measurement of how efficiently your antenna system will radiate the power available from your radio

Simple 2.4 GHz SWR Meter
A simple 2.4 GHz SWR meter which is based around surplus microwave hardware which can be easily found

Simple RF Power
The board shown here has two separate detector circuits on it, and is the one I now use for monitoring both forward and reverse power with a dual directional coupler, and for providing an SWR trip signal


Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

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Amateur radio kits by Kanga US

Pcs Electronics

Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters