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[Jamin Lynch]

Is there a way to affectively use 5 Senn G4 IEM systems with 1 AC41 antenna combiner with 1 paddle?

I'm trying to avoid buying another AC41

Thanks

[Keith Broughton]

Is there a way to affectively use 5 Senn G4 IEM systems with 1 AC41 antenna combiner with 1 paddle?

I'm trying to avoid buying another AC41

Thanks

I would think that a good quality passive combiner could be used to take the output of the AC41 and the output of the single transmitter and send to 1 antenna.

[Henry Cohen]

I would think that a good quality passive combiner could be used to take the output of the AC41 and the output of the single transmitter and send to 1 antenna.

Yes, but with caveats: The splitter/combiner needs to have the highest port to port isolation possible at the frequency range of interest, 25dB minimum, and be capable of handling the input power levels at hand. Most splitter/combiner power ratings are as a splitter, with the power rating that presented to the input, or S, port. Unless input power levels as a combiner are explicitly given, the rule of thumb for determining that power level is 20% of the S port input power level divided by the number of opposing ports.

Either of these Mini-Circuits 2-way units are good for this application.
ZAPD-900-5W-N
ZA2CS-600-10W

[Erik Jerde]

Is there a way to affectively use 5 Senn G4 IEM systems with 1 AC41 antenna combiner with 1 paddle?

I'm trying to avoid buying another AC41

Thanks

I’ve used a Shure passive split/combine for this quite successfully.  I don’t remember the part number off hand but they were sold in pairs and Shure had an application example showing this exact usage.

[Keith Broughton]

Yes, but with caveats: The splitter/combiner needs to have the highest port to port isolation possible at the frequency range of interest, 25dB minimum, and be capable of handling the input power levels at hand. Most splitter/combiner power ratings are as a splitter, with the power rating that presented to the input, or S, port. Unless input power levels as a combiner are explicitly given, the rule of thumb for determining that power level is 20% of the S port input power level divided by the number of opposing ports.

Either of these Mini-Circuits 2-way units are good for this application.
ZAPD-900-5W-N
ZA2CS-600-10W

Thanks for the clarification, Henry.
Both those devices are quite reasonably priced compared to buying another active combiner.

[Jamin Lynch]

Yes, but with caveats: The splitter/combiner needs to have the highest port to port isolation possible at the frequency range of interest, 25dB minimum, and be capable of handling the input power levels at hand. Most splitter/combiner power ratings are as a splitter, with the power rating that presented to the input, or S, port. Unless input power levels as a combiner are explicitly given, the rule of thumb for determining that power level is 20% of the S port input power level divided by the number of opposing ports.

Either of these Mini-Circuits 2-way units are good for this application.
ZAPD-900-5W-N
ZA2CS-600-10W

Great info.

I thought about a splitter but was concerned about signal loss through the splitter and if it would pass power.

Thanks

[Keith Broughton]

Great info.

I thought about a splitter but was concerned about signal loss through the splitter and if it would pass power.

Thanks

Any passive device will introduce some loss but this should be fine for your application.
What do you mean by "pass power"?

[Jamin Lynch]

Any passive device will introduce some loss but this should be fine for your application.
What do you mean by "pass power"?

It doesn't need to pass power to power the transmitter unit? I guess I'm not sure how it is to be connected

[Jason Glass]

Any passive device will introduce some loss but this should be fine for your application.
What do you mean by "pass power"?

Physics dictates that any 2-way passive combiner attenuates output power by -3 dB plus insertion loss.  This comes out to about -3.5 dB for good quality 2-way combiners.  It also means that they reduce your output power by more than 50%.  If you're working large areas or trying to function in a high RF noise environment, the reduction in system reliability is huge.

It doesn't need to pass power to power the transmitter unit? I guess I'm not sure how it is to be connected

Power the transmitters from what?  The antenna isn't a battery.     You'll power 4 of your 5 TX with the AC41 coax inputs and must power the 5th with an AC adapter.

[Jamin Lynch]

Physics dictates that any 2-way passive combiner attenuates output power by -3 dB plus insertion loss.  This comes out to about -3.5 dB for good quality 2-way combiners.  It also means that they reduce your output power by more than 50%.  If you're working large areas or trying to function in a high RF noise environment, the reduction in system reliability is huge.

Power the transmitters from what?  The antenna isn't a battery.  You're powering 4 of your 5 TX with the AC41 and must power the 5th with an AC adapter.

I wasn't sure if the AC41 could somehow power the 5th transmitter through the splitter since the AC41 is able to power the other 4. I guess not then.

Thanks

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