ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: Mini-Circuits vs. Shure  (Read 1057 times)

Jim McKeveny

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1454
Mini-Circuits vs. Shure
« on: November 27, 2022, 05:01:15 PM »

A Mini-Circuits ZFSC-2-2 is a reasonable substitute for a Shure UA221, yes?
Logged

Mac Kerr

  • Old enough to know better
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 7552
  • Audio Plumber
Re: Mini-Circuits vs. Shure
« Reply #1 on: November 27, 2022, 05:19:06 PM »

A Mini-Circuits ZFSC-2-2 is a reasonable substitute for a Shure UA221, yes?

Yes, spec wise it may even be better, but it doesn't save that much money, and it has SMA connectors, not BNC. You will need SMA to BNC jumpers to connect to BNC cable. The Mini-Circuits is around $75, the Shure is around $180 for 2.

Mac
Logged

Henry Cohen

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1220
  • Westchester Co., NY, USA
Re: Mini-Circuits vs. Shure
« Reply #2 on: November 27, 2022, 05:31:48 PM »

A Mini-Circuits ZFSC-2-2 is a reasonable substitute for a Shure UA221, yes?

Presuming you're looking for BNC connectors, the ZSC-2-4 is a better choice, and has better port to port isolation.
Logged
Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Rui Lisboa

  • Newbie
  • *
  • Offline Offline
  • Posts: 41
Re: Mini-Circuits vs. Shure
« Reply #3 on: November 28, 2022, 06:15:15 AM »

A Mini-Circuits ZFSC-2-2 is a reasonable substitute for a Shure UA221, yes?

Mini Circuits also has less insertion loss.
However if you need to send DC/Bias for feeding boosters the Shure is the only choice from these two.
Logged

Jim McKeveny

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1454
Re: Mini-Circuits vs. Shure
« Reply #4 on: November 28, 2022, 04:41:45 PM »

I have some of these, with that part number and BNC. (I'd post a pic, but cannot get it down to 512mb).

In addition to splitting antennas, are these capable of combining 2 x 30mw IEM TX's?

Thanks for all of the responses...
« Last Edit: December 08, 2022, 01:54:06 PM by Jim McKeveny »
Logged

Henry Cohen

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1220
  • Westchester Co., NY, USA
Re: Mini-Circuits vs. Shure
« Reply #5 on: November 28, 2022, 06:56:08 PM »

I have some of these, with that part number and BNC. I'd post a pic, but cannoy get it down to 512mb).

In addition to splitting antennas, are these capable of combining 2 x 30mw IEM TX's?

They will. General rule of thumb for Wilkinson style splitters used as combiners is to take 20% of the power handling rating as a splitter, then divide by the number of ports. This unit is rated at 1W, so each port could handle as much as 100mW. That said, and although the 27-ish dB of port to port isolation is pretty could, isolators should be used at the output of each transmitter to protect their PA's from any reflections at the summing port.
Logged
Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Pat Hamp

  • Newbie
  • *
  • Offline Offline
  • Posts: 6
Re: Mini-Circuits vs. Shure
« Reply #6 on: December 06, 2022, 04:23:49 PM »

They will. General rule of thumb for Wilkinson style splitters used as combiners is to take 20% of the power handling rating as a splitter, then divide by the number of ports. This unit is rated at 1W, so each port could handle as much as 100mW. That said, and although the 27-ish dB of port to port isolation is pretty could, isolators should be used at the output of each transmitter to protect their PA's from any reflections at the summing port.

Hi Henry! Nicely stated. The thing with Mini Circuits is the military uses them, so the specs are more consistent. Funny story. I'm crew on a P3 Orion ASW aircraft. I'm doing the FE rack and function check and there, low and behold are some mini circuits splitters the same ones we used at Systems Wireless.

Merry Christmas!
« Last Edit: December 06, 2022, 04:34:03 PM by Pat Hamp »
Logged

brian maddox

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3270
  • HeyYahWon! ttsss! ttsss!
Re: Mini-Circuits vs. Shure
« Reply #7 on: December 06, 2022, 05:29:45 PM »

Hi Henry! Nicely stated. The thing with Mini Circuits is the military uses them, so the specs are more consistent. Funny story. I'm crew on a P3 Orion ASW aircraft. I'm doing the FE rack and function check and there, low and behold are some mini circuits splitters the same ones we used at Systems Wireless.

Merry Christmas!

/swerve
When I was working as a church tech director one of my volunteers had a successful small business making nothing but RF attenuators for defense contracts. Doesn't seem like enough to build an entire company around, but he did quote well with it.
[side note: I now have a broad assortment of some of best built RF attenuators in the world]
/end swerve
Logged
"It feels wrong to be in the audience.  And it's too peopley!" - Steve Smith

brian maddox
[email protected]
Savannah, GA

'...do not trifle with the affairs of dragons...

       ....for you are crunchy, and taste good with ketchup...'

ProSoundWeb Community

Re: Mini-Circuits vs. Shure
« Reply #7 on: December 06, 2022, 05:29:45 PM »


Pages: [1]   Go Up
 



Site Hosted By Ashdown Technologies, Inc.

Page created in 0.044 seconds with 22 queries.