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Author Topic: ULXD G50 Band Passive Antenna  (Read 3939 times)

Bob Charest

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ULXD G50 Band Passive Antenna
« on: September 27, 2017, 04:16:43 pm »

Hi,

In preparation for our move to ULXD, G50 band, I'm looking for passive antennas in the band range. I'm not finding what I'm looking for, either on the internet or PSW.

I won't be going active. We're getting 3 quad receivers, and my intention is to cascade two of them, feeding one diversity antenna set, and let the 3rd unit have its own diversity antenna set.

I would've loved to re-purpose my Lectrosonics SNA600 tunable dipole antennas, but they don't adjust into the range needed. Too bad, as I love those for ease of deployment and packing.

Any suggestions welcome!

Thanks,
Bob Charest
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Ike Zimbel

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Re: ULXD G50 Band Passive Antenna
« Reply #1 on: September 27, 2017, 04:35:23 pm »

Hi,

In preparation for our move to ULXD, G50 band, I'm looking for passive antennas in the band range. I'm not finding what I'm looking for, either on the internet or PSW.

I won't be going active. We're getting 3 quad receivers, and my intention is to cascade two of them, feeding one diversity antenna set, and let the 3rd unit have its own diversity antenna set.

I would've loved to re-purpose my Lectrosonics SNA600 tunable dipole antennas, but they don't adjust into the range needed. Too bad, as I love those for ease of deployment and packing.

Any suggestions welcome!

Thanks,
Bob Charest
If you want to stick with Lectro antennas, the ALP500 will do what you need it to do. If you are looking to limit the upper end of their reception range, I suggest using a filter after the antenna. http://www.lectrosonics.com/US/phocadownload/alpseriestd.pdf
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~Ike Zimbel~
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Bob Charest

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Re: ULXD G50 Band Passive Antenna
« Reply #2 on: September 27, 2017, 04:45:50 pm »

Thanks, Ike. I'll check it out - thanks for the link as well.


Sent from my iPhone using Tapatalk
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Keith Broughton

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Re: ULXD G50 Band Passive Antenna
« Reply #3 on: September 27, 2017, 05:01:16 pm »

Hi,

In preparation for our move to ULXD, G50 band, I'm looking for passive antennas in the band range. I'm not finding what I'm looking for, either on the internet or PSW.

I won't be going active. We're getting 3 quad receivers, and my intention is to cascade two of them, feeding one diversity antenna set, and let the 3rd unit have its own diversity antenna set.

I would've loved to re-purpose my Lectrosonics SNA600 tunable dipole antennas, but they don't adjust into the range needed. Too bad, as I love those for ease of deployment and packing.

Any suggestions welcome!

Thanks,
Bob Charest
At a recent Shure RF seminar, I asked about the cascading limit of 2 units and the Shure rep said "un officially" that you can cascade 3.
As for antennas, the Shure PA805 works down to 470.
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Scott Helmke

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Re: ULXD G50 Band Passive Antenna
« Reply #4 on: September 27, 2017, 05:38:53 pm »

The Shure 1/2 wave antennas that come free with each receiver are pretty good antennas, though not directional.
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Brian Adams

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Re: ULXD G50 Band Passive Antenna
« Reply #5 on: September 27, 2017, 06:11:24 pm »

If you're going to the expense of buying 4 quad receivers, why not add a UA844 or similar to distribute the antennas to all receivers? The cost is minimal, especially for a used unit. You could run up to 8 quad receivers (or 12 if what Keith heard from Shure is true) from one UA844 for 32 (or 48) channels. And even if you don't need that many channels, having a spare output from your antenna distro is also nice for hooking up additional receivers to your antennas, which I've done on a few occasions with rented gear.

Also, Keith is right, the PA805 will work fine with those receivers, as will pretty much any passive paddle in the right frequency range.
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Brian Adams
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Dan Currie

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Re: ULXD G50 Band Passive Antenna
« Reply #6 on: September 28, 2017, 02:09:49 am »

It is best practice to keep the frequencies used by the third unit towards the towards the center of the units pass band.

At a recent Shure RF seminar, I asked about the cascading limit of 2 units and the Shure rep said "un officially" that you can cascade 3.
As for antennas, the Shure PA805 works down to 470.
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Keith Broughton

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Re: ULXD G50 Band Passive Antenna
« Reply #7 on: September 28, 2017, 06:01:13 am »

It is best practice to keep the frequencies used by the third unit towards the towards the center of the units pass band.
Good suggestion
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Ray Aberle

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Re: ULXD G50 Band Passive Antenna
« Reply #8 on: September 28, 2017, 09:24:50 am »

If you're going to the expense of buying 4 quad receivers, why not add a UA844 or similar to distribute the antennas to all receivers? The cost is minimal, especially for a used unit. You could run up to 8 quad receivers (or 12 if what Keith heard from Shure is true) from one UA844 for 32 (or 48) channels. And even if you don't need that many channels, having a spare output from your antenna distro is also nice for hooking up additional receivers to your antennas, which I've done on a few occasions with rented gear.
Side note- the UA844SWB has now been replaced by the UA844+SWB, which adds a set of cascade outputs. So, you can use those as another 'output' on the distro; you just don't have another power port to connect a single half rack receiver to.

This means you can either have a single UA844+SWB with up to five receivers connected to it... or if you need more units, have a 'master' UA844+SWB going to 4 to 5 more UA844+SWBs, and each one of those distros have 4 to 5 RF receivers connected to them. With ULXD4Qs, you could conceivably have up to 100 channels, all on one set of antenna!

-Ray
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Scott Helmke

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Re: ULXD G50 Band Passive Antenna
« Reply #9 on: September 28, 2017, 10:19:05 am »

In preparation for our move to ULXD, G50 band,

On a side note, what's the repack doing in your locale? We (and everybody else) mostly bought in to the various G bands before we knew where all the channels would be placed. Now it looks like more H would have been a good choice, because the repack is filling almost all of the bottom channels first.
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ProSoundWeb Community

Re: ULXD G50 Band Passive Antenna
« Reply #9 on: September 28, 2017, 10:19:05 am »


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