Topband: TX/ RX Antenna Switching
Buck wh7dx
wh7dx at hawaii.rr.com
Tue Nov 13 13:17:19 EST 2012
Thanks guys.
It sounds like the DX and MFJ are out because of Watt limitations (200W?).
There are two Front End Savers so far..
KD9SV Front End Saver and OK1RR Saver
And there's this.. which sounds simple if I want to use my Yaesu 987 for the Beverage RX only. No changes to main rig config. Just add Box to Yaesu Ant.??
ICE PRODUCT - RF Limit - Signal Protector (just saw this) Limit to S-9 +60DB? With lightning arrestor for $60.
>>Here is a trick unit that is ideal for serious listeners on HF, VHF, and UHF. Receiver protector limits input RF signal threshold at any frequency at 0.3VRMS to protect receiver front end from damage due to nearby transmitted fields. Receiver still acts normally and measured signal strength is not affected.
Circuit uses a multi-stage design of transformer saturation coupling and current limiters. Models 196 and 198 are receive RF limiting only, while models 197 and 199 offer the same but with our constant-drain, capacitor-blocked lightning arrestor technology built in to the same unit.
For all receivers, especially the new broadband super-sensitive solid state units. Low frequency models are fitted with RCA pin connectors while high frequency units are BNC. N connectors available on request. Chassis measure (HWD) 1" x 2" x 3", weight one pound, packed with 4 page owner's manual / data sheet.<<
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