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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => Wireless and Communications => Topic started by: Curt Sorensen on November 16, 2017, 03:59:29 pm

Title: FreeSpeak II Antenna Usage
Post by: Curt Sorensen on November 16, 2017, 03:59:29 pm
Iím trying to gather options to replace [2] BTR-800 systems typically used separately on remotes and in studio. Note this use is for broadcast, I hope thatís an acceptable topic.
Consideration is being given to Radio Active Designs UV-1G and FreeSpeak II-5. Any other options Iím missing? The lower cost of the FreeSpeak II system has itís appeal, along with some interesting features. But the technology is different enough from conventional UHF RF practice, so Iím asking here for any insights yíall have to offer.

The ability of FreeSpeak to have/need multiple antennas on CAT5 offers multiple zones without fear of multi-path if coverage overlaps, correct?

I realize the antenna-to-base CAT5 isnít carrying IP-based information on a network, but is it delivering RF, or data, or something else entirely?

From what Iíve read so far, the length of a cable isnít at all the same issue as with UHF systems. If I can trust a venueís CAT5 dry-line infrastructure, why would I put a base station anywhere but in our truck in the loading dock?

If I had a production where I needed more belt-packs [weíre usually running four or fewer], I think I only need to add antennas, as each antenna maxes out with five packs. I wouldnít need to daisy chain two base stations the way I would with BTR-800s.

Iíve searched PSW, scanned manuals and white papers, and itís a lot to digest. Iím not unwilling to try, but again would appreciate any experiences with the FreeSpeak systems to aid in my evaluations.

Thanks a lot,

Curt
Title: Re: FreeSpeak II Antenna Usage
Post by: Mac Kerr on November 16, 2017, 04:40:44 pm
Iím trying to gather options to replace [2] BTR-800 systems typically used separately on remotes and in studio. Note this use is for broadcast, I hope thatís an acceptable topic.
Consideration is being given to Radio Active Designs UV-1G and FreeSpeak II-5. Any other options Iím missing? The lower cost of the FreeSpeak II system has itís appeal, along with some interesting features. But the technology is different enough from conventional UHF RF practice, so Iím asking here for any insights yíall have to offer.
Two other options would be Bolero from Riedel and Romeo from RTS. Both are available as a card that goes in your intercom matrix frame. If you have either a Riedel Artist or RTS Adam frame one or the other of these would be another choice. Freespeak is also available as a card for Clear Com Eclipse matrix frames.
Quote
The ability of FreeSpeak to have/need multiple antennas on CAT5 offers multiple zones without fear of multi-path if coverage overlaps, correct?
Yes, however the rule of thumb is to count the maximum per antenna as 4 or packs may not be able to roam from one antenna to the next.
Quote
I realize the antenna-to-base CAT5 isnít carrying IP-based information on a network, but is it delivering RF, or data, or something else entirely?

From what Iíve read so far, the length of a cable isnít at all the same issue as with UHF systems. If I can trust a venueís CAT5 dry-line infrastructure, why would I put a base station anywhere but in our truck in the loading dock?
 
The CAT5 is carrying audio and data, but not in a regular network data format, so no switches can be used, and power needs to make it to the antenna (transceiver) or you need to run power to the antenna. From a truck you would probably run from the base to a FreeSpeak antenna splitter that could power and connect 5 antennas in the venue.
Quote
If I had a production where I needed more belt-packs [weíre usually running four or fewer], I think I only need to add antennas, as each antenna maxes out with five packs. I wouldnít need to daisy chain two base stations the way I would with BTR-800s.
Correct, although as I said before you may need to use 4 or fewer packs as your guide.

The RAD system uses antenna technology you may be more familiar with, and has very good range with the VHF return from the packs. It is also simpler for users to adapt to as it basically duplicates the functionality of a BTR, while allowing 6 packs per base, and simple linking of multiple base stations via a jumper.

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 16, 2017, 04:53:40 pm
From what Iíve read so far, the length of a cable isnít at all the same issue as with UHF systems. If I can trust a venueís CAT5 dry-line infrastructure, why would I put a base station anywhere but in our truck in the loading dock?
Same 100M limitation on cat5 as data.  New splitter can be remoted over fiber. each antenna home run to the splitter.
Quote

If I had a production where I needed more belt-packs [weíre usually running four or fewer], I think I only need to add antennas, as each antenna maxes out with five packs. I wouldnít need to daisy chain two base stations the way I would with BTR-800s.the FreeSpeak systems to aid in my evaluations.

max 10 antennas per stand alone base

max 1.9 beltpacks in the usa in the same RF space is 25 on one stand alone base.
Max 2.4 BP the same.  You can use both system together with 2 bases. 

This is the way we do 50 BP on the Macy's parade and on the NBC Tree lighting.

If you use a Clearcom Helixnet matrix you can have 40 2.4 BP in one system and up to 80 antennas.

You cannot Link bases like BTR just send the same comm channel to both.

Base has 4 4-wires and 4 2-wires which can be all used at the same time.  I use a model 47 to convert 4 to match the other 4 so I have 8.


See my web page for helixnet and Freespeak http://www.bestaudio.com/helixnet/
Title: Re: FreeSpeak II Antenna Usage
Post by: Ike Zimbel on November 16, 2017, 09:26:54 pm

If I had a production where I needed more belt-packs [weíre usually running four or fewer], I think I only need to add antennas, as each antenna maxes out with five packs. I wouldnít need to daisy chain two base stations the way I would with BTR-800s.
Actually, with BTR, and RAD, you can add as many belt packs as you want, with the caveat that the packs all need to be set to "Push-to-talk and Tx" so that none are transmitting constantly.
Title: Re: FreeSpeak II Antenna Usage
Post by: Dan Currie on November 16, 2017, 10:06:36 pm
How is the latency with FreeSpeak II?  Is it caused be a 2wire or 4wire conversion like the Tempest?  Or is it always there even as a standalone wireless comm without any external connections? 
Title: Re: FreeSpeak II Antenna Usage
Post by: Curt Sorensen on November 16, 2017, 10:30:48 pm
Hi,
So thanks, all, for your responses. You're remarkably helpful, punctual, and free. Where else can I get all three?

Is there any info about what's going on between the antenna(s) and the base? I mean is it some standard of some kind, or totally proprietary? I found some descriptions of the wireless transmission portion, is that simply passed along the CAT5 cable, or is there some processing, conversion, or further encoding? I'm only trying to get enough background to understand how the system works [or doesn't] for our purposes.

I'm also curious if there would be any reason to ever use two base stations. Know that I don't have the ability to use cards in a matrix system as we have RTS Cronus frames. Also, if I were ever faced with anywhere near 50 packs I'd be hiring one of you. It's totally unlikely I'd need more than four.

We do work in a venue that just acquired FreeSpeak. Does that present coordination issues, or the need for two units to interact in any way?

I don't mean to take advantage of your time, but I have yet to find some of these answers in my research to date.

Much thanks again,
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 16, 2017, 10:38:07 pm
How is the latency with FreeSpeak II?  Is it caused be a 2wire or 4wire conversion like the Tempest?  Or is it always there even as a standalone wireless comm without any external connections?

If the 2wire is not nulled there will be an echo-if it is nulled no echo.

If you are standing next to another user and they are talking on your channel you will hear an echo effect while listening to live vs your comm headset.  In any case the latency is less than Tempest.
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 16, 2017, 10:43:34 pm
Hi,
So thanks, all, for your responses. You're remarkably helpful, punctual, and free. Where else can I get all three?

Is there any info about what's going on between the antenna(s) and the base? I mean is it some standard of some kind, or totally proprietary? I found some descriptions of the wireless transmission portion, is that simply passed along the CAT5 cable, or is there some processing, conversion, or further encoding? I'm only trying to get enough background to understand how the system works [or doesn't] for our purposes.

I'm also curious if there would be any reason to ever use two base stations. Know that I don't have the ability to use cards in a matrix system as we have RTS Cronus frames. Also, if I were ever faced with anywhere near 50 packs I'd be hiring one of you. It's totally unlikely I'd need more than four.

We do work in a venue that just acquired FreeSpeak. Does that present coordination issues, or the need for two units to interact in any way?

I don't mean to take advantage of your time, but I have yet to find some of these answers in my research to date.

Much thanks again,

The connection to the antenna is a dual data stream-audio on an ethernet connection and on an unused pair 422 sync pulse.  The antenna cannot use regular switches.  However you can build your own fiber adapter with media converters.  see the same web page I sent you to before for the details.

http://www.bestaudio.com/helixnet/

Title: Re: FreeSpeak II Antenna Usage
Post by: Ike Zimbel on November 17, 2017, 02:24:32 pm



We do work in a venue that just acquired FreeSpeak. Does that present coordination issues, or the need for two units to interact in any way?

This is a really good question. What does happen when you bring another FS-II system into a scenario where there's one already in place? Pete?
Title: Re: FreeSpeak II Antenna Usage
Post by: Mac Kerr on November 17, 2017, 03:15:57 pm
This is a really good question. What does happen when you bring another FS-II system into a scenario where there's one already in place? Pete?

I'm waiting to heat this answer as well. I have a show next week where we are bringing FSII with 16 packs, and the video truck is bringing FSII with 5 packs. Ours (OSA's) will be 1.9GHz, haven't been able to get that info from the truck.

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: Magnus HŲgkvist on November 17, 2017, 04:00:06 pm
I'm waiting to heat this answer as well. I have a show next week where we are bringing FSII with 16 packs, and the video truck is bringing FSII with 5 packs. Ours (OSA's) will be 1.9GHz, haven't been able to get that info from the truck.

Mac

Since You register the beltpacks to your Base station it "should" just work.....
Title: Re: FreeSpeak II Antenna Usage
Post by: Henry Cohen on November 18, 2017, 12:30:45 pm
Since You register the beltpacks to your Base station it "should" just work.....

Actually, no. If another FS-II system (or Riedel Bolero or Telex Roameo) shows up on the scene, within the same RF coverage area(s), there are now multiple systems operating in the same frequency spectrum, and this means interference potential. It doesn't matter if only I have keys to my car, if there are a million other cars on the road, I'm not going anywhere, or it will be very slow going.

Other co-located systems means reduced range at best, to complete non-usability at worst. 
Title: Re: FreeSpeak II Antenna Usage
Post by: Mac Kerr on November 18, 2017, 12:54:13 pm
Actually, no. If another FS-II system (or Riedel Bolero or Telex Roameo) shows up on the scene, within the same RF coverage area(s), there are now multiple systems operating in the same frequency spectrum, and this means interference potential. It doesn't matter if only I have keys to my car, if there are a million other cars on the road, I'm not going anywhere, or it will be very slow going.

Other co-located systems means reduced range at best, to complete non-usability at worst.

In that case, how do we deal with multiple systems in the same space? Can the 2 FS II bases be linked in some way? One of them will be on the 3rd floor of a commercial building in lower Manhattan (16 drops), the other may be in a truck on the street, or may be in the same room (5 more drops).

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: Henry Cohen on November 18, 2017, 01:24:34 pm
In that case, how do we deal with multiple systems in the same space? Can the 2 FS II bases be linked in some way? One of them will be on the 3rd floor of a commercial building in lower Manhattan (16 drops), the other may be in a truck on the street, or may be in the same room (5 more drops).

If there are two separate systems occupying the same physical space (RF coverage area) AND the total number of beltpacks between the two systems does not exceed 25 in each band, then simply use the DECT sync RJ45's to interconnect the two bases so time slots are aligned. Register belt packs to their respective base.

If the two systems can be RF isolated sufficiently, then simply treat them as two disparate systems not in each other's RF coverage area. Mitigating RF energy propagation into each other's coverage area(s) can be achieved with the use of black wrap or regular aluminum foil to create a reflector/shield, or by placing transceivers near metal structures or set pieces that can attenuate the energy in the desired direction. It's not necessary to bond the foil to the 0VDC rail of the transceiver.
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 18, 2017, 05:26:35 pm
Actually, no. If another FS-II system (or Riedel Bolero or Telex Roameo) shows up on the scene, within the same RF coverage area(s), there are now multiple systems operating in the same frequency spectrum, and this means interference potential. It doesn't matter if only I have keys to my car, if there are a million other cars on the road, I'm not going anywhere, or it will be very slow going.

Other co-located systems means reduced range at best, to complete non-usability at worst.


As Henry said...

Many FSII 19 systems can operate in the same RF space as long as the total number of BP is 25 or less.

FSII 214 using a matrix frame c an have up to 40 Beltpacks - stand alone bases are 25 for both bands.

You can use both bands in the same show for a total of 50 with stand alone and 65 with Matrix frames.

If the 19 bases are connected with sync cables latency will be the same as 1 base.  If they are not connected in sync the latency will increase as the antennas and BP need to negotiate for the slot.

This is not absolutely true if there are different manufacturers of systems.  While the modulation schemes are similar the timing most certainly is not.

It's like trying to use a FSII 19 in an arena with DECT telephones - absolute disaster.
Title: Re: FreeSpeak II Antenna Usage
Post by: Dan Currie on November 19, 2017, 11:40:20 am
...It's like trying to use a FSII 19 in an arena with DECT telephones - absolute disaster.

Pete,
  Do you have experience with the FS 214 in the already crowded 2.4ghz reange?  Are they more frequency resilient than the 19?

  Too bad there does not appear to be a network number and lockout key on the FSII.
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 19, 2017, 03:24:40 pm
Pete,
  Do you have experience with the FS 214 in the already crowded 2.4ghz reange?  Are they more frequency resilient than the 19?

  Too bad there does not appear to be a network number and lockout key on the FSII.

The 24 has less of an issue with multi path than the 19 which often doesn't work in large arenas, especially domed arenas.  The 24 is NOT Wifi...be clear on that.  It just operates in that band.

FS24 works well in high wifi environments.  If anything it bothers the wifi much more than is bothered by wifi.  For that reason we cannot use it on shows for computer manufacturers since they are pushing their wifi.

This week and next week we are using 25-1.9 and 25-2.4 beltpacks for the second year on 34th street at the Macy's day parade and at the tree Lighting in Rock center.  Both locations not only have hundreds of access points but thousands of smart phone users.

Another vendor will also be using the 2 bands again in Times Square for New Years providing coverage for 10 blocks with 65 beltpacks.

I would recommend the 24 system since it will be legal all around the world wher the 19 is not without buying different BP and antennas for other countries...they are not software changeable.

Title: Re: FreeSpeak II Antenna Usage
Post by: brian maddox on November 19, 2017, 04:20:52 pm
If there are two separate systems occupying the same physical space (RF coverage area) AND the total number of beltpacks between the two systems does not exceed 25 in each band, then simply use the DECT sync RJ45's to interconnect the two bases so time slots are aligned. Register belt packs to their respective base.

If the two systems can be RF isolated sufficiently, then simply treat them as two disparate systems not in each other's RF coverage area. Mitigating RF energy propagation into each other's coverage area(s) can be achieved with the use of black wrap or regular aluminum foil to create a reflector/shield, or by placing transceivers near metal structures or set pieces that can attenuate the energy in the desired direction. It's not necessary to bond the foil to the 0VDC rail of the transceiver.

I've come across the following situation [or similar] several times in the last year and would love to know what the best strategy in this case would be.

In-house production has FS 1.9 deployed with multiple antennas.  Let's say for arguments sake they have 16 drops deployed throughout the production areas; so backstage as well as FOH areas covered.  I roll in with a production truck with a Base Station installed that is essentially the Hub of my comms system.  So It's got all 8 of it's analog ports full with various things in the truck, so relocating it where the In-House Base station is would be problematic.  I want to deploy 6 drops of FS 1.9 in the FOH area for MY production folks using Fiber to remote my antennas from the truck [we're running fiber anyway for cameras and such].

What's my best plan?  Can i theoretically operate a standalone system without the 2 systems fighting with each other given that there is only 22 drops in actual operation [and less than 3-4 per transceiver for both systems]?  Or will they walk on one another since they are not "sync-ed"?  To be clear, simply isolating my system from theirs won't really work because they both need to cover the same area.  Is there a way to make this work, or is it time for me to pull out my much maligned 900MHz HME rig?

Thanks for the help in advance...
Title: Re: FreeSpeak II Antenna Usage
Post by: Mac Kerr on November 19, 2017, 05:31:52 pm
I've come across the following situation [or similar] several times in the last year and would love to know what the best strategy in this case would be.

In-house production has FS 1.9 deployed with multiple antennas.  Let's say for arguments sake they have 16 drops deployed throughout the production areas; so backstage as well as FOH areas covered.  I roll in with a production truck with a Base Station installed that is essentially the Hub of my comms system.  So It's got all 8 of it's analog ports full with various things in the truck, so relocating it where the In-House Base station is would be problematic.  I want to deploy 6 drops of FS 1.9 in the FOH area for MY production folks using Fiber to remote my antennas from the truck [we're running fiber anyway for cameras and such].

What's my best plan?  Can i theoretically operate a standalone system without the 2 systems fighting with each other given that there is only 22 drops in actual operation [and less than 3-4 per transceiver for both systems]?  Or will they walk on one another since they are not "sync-ed"?  To be clear, simply isolating my system from theirs won't really work because they both need to cover the same area.  Is there a way to make this work, or is it time for me to pull out my much maligned 900MHz HME rig?

Thanks for the help in advance...

This is my situation next week exactly, except I'll have the "house" system and the truck will be bringing their system for their fiber connected cameras. I'll try to connect them with a sync cable.

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 19, 2017, 06:07:12 pm
I've come across the following situation [or similar] several times in the last year and would love to know what the best strategy in this case would be.

In-house production has FS 1.9 deployed with multiple antennas.  Let's say for arguments sake they have 16 drops deployed throughout the production areas; so backstage as well as FOH areas covered.  I roll in with a production truck with a Base Station installed that is essentially the Hub of my comms system.  So It's got all 8 of it's analog ports full with various things in the truck, so relocating it where the In-House Base station is would be problematic.  I want to deploy 6 drops of FS 1.9 in the FOH area for MY production folks using Fiber to remote my antennas from the truck [we're running fiber anyway for cameras and such].

What's my best plan?  Can i theoretically operate a standalone system without the 2 systems fighting with each other given that there is only 22 drops in actual operation [and less than 3-4 per transceiver for both systems]?  Or will they walk on one another since they are not "sync-ed"?  To be clear, simply isolating my system from theirs won't really work because they both need to cover the same area.  Is there a way to make this work, or is it time for me to pull out my much maligned 900MHz HME rig?

Thanks for the help in advance...

If you will have the same exact PL channels, I would just sync your BP to their system and not use your base.  If they haven't deployed 10 antennas you can extend your coverage with your antennas.

Last week I did a show at the Jazz at Lincoln center where they have a 1.9 system and Worldstage sent a 1.9 system for me..  the only common channel was Production so I used my base - total BP was less than 25 - I didn't sync since their base was too far away and had no issues.
Title: Re: FreeSpeak II Antenna Usage
Post by: brian maddox on November 20, 2017, 04:16:59 pm
If you will have the same exact PL channels, I would just sync your BP to their system and not use your base.  If they haven't deployed 10 antennas you can extend your coverage with your antennas.

Last week I did a show at the Jazz at Lincoln center where they have a 1.9 system and Worldstage sent a 1.9 system for me..  the only common channel was Production so I used my base - total BP was less than 25 - I didn't sync since their base was too far away and had no issues.

I rarely have the same comms channels as the house since i'm interfacing comms over IP to our main control room in DC and other back channel production PLs.  Usually the only channel i have in common with the house is the main Show Caller channel. 

I figured so long as total BPs was less than 25 more than one system should still play nice with one another.  But good to hear that it worked that way at least once.  :)

Actually when i was at the DNCC in Philly i knew there were 2 other base stations in use 'cause i could see them when i was registering my BPs.  But things were so chaotic there that i never did figure out where they were coming from.  And the Frequency Coordinator didn't seem to know either.  But i was in such a limited area kinda away from the main stage that everything worked fine anyway...
Title: Re: FreeSpeak II Antenna Usage
Post by: Mac Kerr on November 27, 2017, 03:00:53 pm
I rarely have the same comms channels as the house since i'm interfacing comms over IP to our main control room in DC and other back channel production PLs.  Usually the only channel i have in common with the house is the main Show Caller channel. 

I figured so long as total BPs was less than 25 more than one system should still play nice with one another.  But good to hear that it worked that way at least once.  :)

Actually when i was at the DNCC in Philly i knew there were 2 other base stations in use 'cause i could see them when i was registering my BPs.  But things were so chaotic there that i never did figure out where they were coming from.  And the Frequency Coordinator didn't seem to know either.  But i was in such a limited area kinda away from the main stage that everything worked fine anyway...

This is my situation next week exactly, except I'll have the "house" system and the truck will be bringing their system for their fiber connected cameras. I'll try to connect them with a sync cable.

Mac

Well wadda ya know, the truck arrived with their FS II system and it was Brian Maddox. Small world. Still working out how to make it all work together, as well as the Dante split to Brian.

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: Dan Currie on November 27, 2017, 08:10:03 pm
Are you trying to merry 2 dante networks or is the split comm via a Studio Technologies unit?

Well wadda ya know, the truck arrived with their FS II system and it was Brian Maddox. Small world. Still working out how to make it all work together, as well as the Dante split to Brian.

Mac
Title: Re: FreeSpeak II Antenna Usage
Post by: brian maddox on November 27, 2017, 09:15:06 pm
Well wadda ya know, the truck arrived with their FS II system and it was Brian Maddox. Small world. Still working out how to make it all work together, as well as the Dante split to Brian.

Mac

Yes, it turns out that Mac and I were basically talking about the same show without knowing it... 😀

Our Dante is now all kinda happy.  After I flogged my fiber guys for about 6 hours...  Hazards of doing audio for what is essentially a video company. Combining Dante networks does require trust, but needless to say, Mac has earned it.  This one is gonna be easy.

As to combining freespeak systems...  well....  turns out Mac is using a 1st gen Freespeak system so there is no way to sync with my Freespeak II rig.  But weíve each ran our antennas and fired it all up and I think itíll all play together just fine.

This is my first time meeting a LabSter IRL.  And it turns out to be Mac Kerr.  Itís gonna be a good show....
Title: Re: FreeSpeak II Antenna Usage
Post by: brian maddox on November 27, 2017, 09:21:03 pm
This is my situation next week exactly, except I'll have the "house" system and the truck will be bringing their system for their fiber connected cameras. I'll try to connect them with a sync cable.

Mac

I made up the hypothetical situation in my original post, but it turns out that I was being prophetical....  😀
Title: Re: FreeSpeak II Antenna Usage
Post by: Curt Sorensen on November 28, 2017, 11:44:48 am
Hi,
I'd be very interested to hear anything you care to share from doing this. As far as using two systems side-by-side, how does the previously mentioned maximum of twenty five stations apply? Isn't that per system rather than per environment? If not, how is that a problem? I'm thinking  of two entirely discrete systems, as in house and truck, not linked in any way (other than a sync cable that was recommended earlier.)
And thanks for everyone's input on my initial post, it appears to have been helpful to more than just myself.
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on November 29, 2017, 02:23:10 pm
Hi,
I'd be very interested to hear anything you care to share from doing this. As far as using two systems side-by-side, how does the previously mentioned maximum of twenty five stations apply? Isn't that per system rather than per environment? If not, how is that a problem? I'm thinking  of two entirely discrete systems, as in house and truck, not linked in any way (other than a sync cable that was recommended earlier.)
And thanks for everyone's input on my initial post, it appears to have been helpful to more than just myself.

That is 25 per environment for the 1.9.  The stand alone base for 2.4 is limited to 25 because of the base.  If you use it in a matrix frame the limit is 40 2.4 beltpacks.

The 1.9 is limited because the entire Spectrum is filled with 25.  both of the systems can have multiple systems as long as the max BP is observed.
Title: Re: FreeSpeak II Antenna Usage
Post by: Curt Sorensen on November 29, 2017, 06:34:26 pm
Hi,
Thanks so much for the clarification, I was afraid it was something like that. Afraid cause now I wonder how the Spectrum can be filled, while I assume other traffic is present? Also how that impacts Frequency Hopping Spread Spectrum and Adaptive Frequency Hopping. It seems I don't need to know the details as it's all automatic, but it is a curiosity.

A document that helped me, though not entirely, is here:

http://www.clearcom.com/userfiles/file/White-Papers/Clear-ComWhitePaper_FSII%20RF%20Performance.pdf
 (http://www.clearcom.com/userfiles/file/White-Papers/Clear-ComWhitePaper_FSII%20RF%20Performance.pdf)

Thanks all,
Title: Re: FreeSpeak II Antenna Usage
Post by: Pete Erskine on December 01, 2017, 04:13:32 am
Hi,
Thanks so much for the clarification, I was afraid it was something like that. Afraid cause now I wonder how the Spectrum can be filled, while I assume other traffic is present? Also how that impacts Frequency Hopping Spread Spectrum and Adaptive Frequency Hopping. It seems I don't need to know the details as it's all automatic, but it is a curiosity.

A document that helped me, though not entirely, is here:

http://www.clearcom.com/userfiles/file/White-Papers/Clear-ComWhitePaper_FSII%20RF%20Performance.pdf
 (http://www.clearcom.com/userfiles/file/White-Papers/Clear-ComWhitePaper_FSII%20RF%20Performance.pdf)


This paper is about the 2.4GHz FSII system, not the 1.9 DECT system.
Title: Re: FreeSpeak II Antenna Usage
Post by: Dan Currie on December 02, 2017, 09:03:33 am
Had some time with a 1.9 system.  Screenshots are with one antenna.  Freespeakii handles more beltpacks differently than I thought it would...

Just the Base
(https://i.imgur.com/5nKRbiP.png)



Base plus 1 pack
(https://i.imgur.com/VQ3pPV6.png)



Base plus 2 packs
(https://i.imgur.com/6LbRfFK.png)



Base plus 3 packs
(https://i.imgur.com/83nMkqb.png)



Base plus 4 packs 
(https://i.imgur.com/W7CKcX9.png)



Base plus 5 packs
(https://i.imgur.com/RcPfgwB.png)
Title: Re: FreeSpeak II Antenna Usage
Post by: Dan Currie on December 02, 2017, 09:11:03 am
A link to a short video of the base with 5 packs.

https://youtu.be/XXqpMACUsUU