Longer Antennas (Antennae?) for My G50 Receiver

[T4570]

Hi gang,

 

  I'd like to mount my G50 Receiver in the back of my rack, but the antennas are too short. They get hidden. behind all those metal enclosures.

 

  Can I replace them with BNC 433MHz swivel antennas? I found some online, but don't want to buy if they aren't going to work.

 

Thanks.

[eklynx]

No, they won't.  The G50 works on the 2.4GHz range, so 443MHz antennas won't pick up a clean signal.  If you need to extend the antennas, i'd pick up a couple short LRM-240 grade or better extension cables and find a better place/way to mount the antennas (suction cups? magnets? short mic stands?)

[T4570]

Thank you.

 

I was afraid it would be something like that. 

 

Edit: I'm finding a lot of 50 and 75 ohm cables, but not seeing the LRM-240 spec.

 

Is there another spec that is similar?

[eklynx]

50-75 ohm is impedance of the cable.  pretty sure you want it to be 50-ohm for sure.  Past that there are different classifications of the actual cable like LMR-XXX or RG-XX, where each classification basically says 'at these frequencies, this is how much signal loss you can expect per X distance'.   I suggest LMR-240 because that's the best bang for the buck you'll probably find.  if you're running really short (like 6 in jumpers) it probably won't make much of a difference over the more common RG-8 cable, but with the price difference, i'd rather get the one with less signal loss.   Then the connector is the last important piece (BNC i believe in this case).   Do an amazon search for "LMR-240 bnc" for examples.  Keep in mind if you get a jumper, you'll probably need to get a coupler/gender changer for one side.  Or look at the rack mount kits that will give you a front rack panel with a couple short jumpers so you can get the antenna mounts in front of your rack space. (i.e. Shure UA440)

[T4570]

Got it.

 

Thanks for your help.