[Elecraft] Elecraft W2 VHF/UHF Coupler use with 12VDC preamps

SVangen sdvangen at earthlink.net
Sun Apr 21 12:51:14 EDT 2019


It appears from the schematic that the Elecraft 144-450 MHz Directional
Coupler for the W2 SWR/Power Meter can safely pass DC voltage without any
direct interface nor danger of damage with the sensor electronics.  My
question, has anyone confirmed that the VHF/UHF couplers are safe to use
with 12VDC in-line coax powered preamps (i.e. Icom AG-25/35 preamps with an
Icom IC-9100 Sat Transceiver).
Thank you,
Scott Vangen WB0QMZ



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