90 deg BNC adapter

[jandlory]

I was going to order a 90 degree BNC adapter for the back of my radio, I have a BCD536HP to connect an antenna. Once I found the connector on the yee oh inter web I found it came in either 50 or 75 ohm. Now I am stumped, which one should I get for this radio for best reception?

 

[mitbr]

50 Ohms is what the antenna connector on that radio is rated at.

 

[JJMNIZ]

I was going to order a 90 degree BNC adapter for the back of my radio, I have a BCD536HP to connect an antenna. Once I found the connector on the yee oh inter web I found it came in either 50 or 75 ohm. Now I am stumped, which one should I get for this radio for best reception?

I was going to order a 90 degree BNC adapter for the back of my radio, I have a BCD536HP to connect an antenna. Once I found the connector on the yee oh inter web I found it came in either 50 or 75 ohm. Now I am stumped, which one should I get for this radio for best reception?

Video cables and TV antennas have an impedance of 75 ohms.

2-way radio equipment is 50 ohms.

 

[garys]

It probably doesn't matter for receive only.

 

[jonwienke]

It probably doesn't matter for receive only.

It does. You'll lose an additional dB or so from the impedance mismatch at each end of the adapter. The 75 ohm also has a smaller center pin, and may not connect to a 50-ohm properly. The connection will be looser than designed.

 

[jandlory]

It does. You'll lose an additional dB or so from the impedance mismatch at each end of the adapter. The 75 ohm also has a smaller center pin, and may not connect to a 50-ohm properly. The connection will be looser than designed.

Thanks for the great information

 

[jandlory]

Video cables and TV antennas have an impedance of 75 ohms.

2-way radio equipment is 50 ohms.

Thanks for the information

 

[jandlory]

50 Ohms is what the antenna connector on that radio is rated at.

Thanks for the information

 

[jandlory]

Ok it is settled, I will be purchasing a 50 ohm connector. Thanks to all that replied.