Author Topic: AN/PRC-522 Manpack long wire antenna ?  (Read 5154 times)

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Offline Evocatus

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AN/PRC-522 Manpack long wire antenna ?
« on: March 13, 2015, 12:47:26 »
Old signallers and old para signallers in particular will recall the home made modified long wire antenna modification that we used to use with the AN/PRC-25 Set and later it's cousin the AN/PRC-77 Set, to extend the range, by either:
  a. tossing it up into the trees to jack it up 2-30 ft vertical; or
  b. employing as a long wire, extended along the ground, in the desired direction of propagation.

It, simply worked wonders, increasing range.

As a retired signaller, I recall as the IRIS/TCCCS AN/PRC-522 Manpack, replaced the 77 Set, it was neigh impossible to 'make' a similiar long wire for the 522, as there were " impedance issues " [not experienced with the ancient 77 set].

Question: has anyone since come up with a way to att a home made long wire to the 522 overcoming said aforementioned issue ?

Much Thx.     V.V.V.
 
Never show your emotion. It reveals your weakness. Never hate your enemy. It effects your judgement   -  M.l Corleone.

Offline Evocatus

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Re: AN/PRC-522 Manpack long wire antenna ?
« Reply #1 on: March 16, 2015, 14:48:19 »
Apparently it's the same drill; use a coax, stripping away the braided shielding, to bare the center conductor to 1/4 wavelength [freq X 234], including accommodation for a loop at the end [for lanyard to hoist up].

Leave the BNC connector on the radio end and hook it up.

One cannot connect the radio end to the AN/PRC-522 [like we did to the 77 set] as it will balk at the 'home made' antenna, not recognize it as legit and thus you can hit the presso swt all you want.....nothing.

problem very simply solved.
Never show your emotion. It reveals your weakness. Never hate your enemy. It effects your judgement   -  M.l Corleone.

Offline 211RadOp

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Re: AN/PRC-522 Manpack long wire antenna ?
« Reply #2 on: March 17, 2015, 10:40:14 »
... 1/4 wavelength [freq X 234], ...

234/freq in MHz
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Offline Pre-flight

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Re: AN/PRC-522 Manpack long wire antenna ?
« Reply #3 on: March 18, 2015, 19:14:12 »
234/freq in MHz

Those of us in the civilized world use the λ(m)=300/ƒ(MHz)

Much cleaner, 1/2 wave is 150/ƒ, 1/4 wave is 75/ƒ

Plus metric is what you need to use if you are going to start to delve into the science of radio.