IC R9000 HF antenna connection

[captkel]

I have a high frequency dipole antenna. I'm planning on running 300 ohm twin lead cable to the IC R9000 radio. What is the correct way to connect it to this radio?

Thanks

KEL

 

[N8IAA]

I have a high frequency dipole antenna. I'm planning on running 300 ohm twin lead cable to the IC R9000 radio. What is the correct way to connect it to this radio? Thanks KEL

KEL, is there a connection on the back of the radio that says unbalanced feed? Or, a black (-) and a red (+) connection, not for power? Those would be where the 300 ohm twin leads would attatch.
HTH,
Larry

The only connections on the 9000 are for a long wire and balanced feedlines. I went and downloaded the manual to see what was what. The only way to run the twin liead might be to an antenna tuner.
HTH,
Larry

 

[ka3jjz]

er...twin lead is a balanced feed, unless there's a foil on the inside for grounding...but I would simply get a balun and transform the balanced feed to unbalanced (coax) and feed that. Twin lead can, in some cases, act as part of the antenna and pick up noise...best regards..Mike

 

[N8IAA]

er...twin lead is a balanced feed, unless there's a foil on the inside for grounding...but I would simply get a balun and transform the balanced feed to unbalanced (coax) and feed that. Twin lead can, in some cases, act as part of the antenna and pick up noise...best regards..Mike

Mike, you are absolutely correct. But, the connector on the back of the 9000 is a RCA. That is why I suggested the antenna tuner for the 300 ohm feed. I personally would use a long wire to feed the hf side of the radio.
Larry

 

[ka3jjz]

Or you could use the very old trick, just to get you off the ground, of shorting the two ends of the twin lead together and feed it into the radio as a 'T'. That trick goes back a LONG time- I understand that hams did this way back just after WW2 when the service was reactivated....best regards..Mike

 

[captkel]

Thanks for the replys. I have a 100' of NEW 300 ohm wire and it was just a thought of maybe using it for the feed line. I just ordered a 4:1 balun from Universal Radio. Maybe I'll just use the 300 ohm wire as the antenna (folded dipole)

Thank Again

KEL