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The BN-4000B broadband 50 Ohm Beam current balun is potted to seal out moisture
 Field-strength meter measures local signals
You can quickly determine feedpoint impedance and monitor antenna system for detrimental changes under power
and good isolation
Great sensitivity: New hotter-than-ever superhet receiver brings weakest signals in at full volume (Super-quiet FET post amp stage in the IF filter makes this the best CW receiver going)
MFJ-1270PI,Raspberry Pi TNC Remote Head The BN-4000B broadband 50 OhmGot Pi? Send text messages and emails over the air using ham radio! Plug a MFJ 1270Pi hat onto your Raspberry Pi. You'll have a tiny, operate anywhere, messaging system! This lets you build an iGate, Digipeater, RMS gateway, and more that can go anywhere! Use widely available free software such as Xastir, LinBPQ, or APRx. Product Manual Download Product Manual Download Configuration Scripts Download Assembly Instruction
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