Hello -

I own a couple of wireless (on-camera) Sennheiser lavaliere systems. The specific model is the Sennheiser EW 112P "Camera-Mount' wireless system (A: 516 to 558 MHz). They're used on Panasonic GH5 cameras in a dedicated video-recording "Green Room", set up to record my wife's cooking videos. (The room is painted Chroma-Key Green for keying effects.) The frustrating issue is that I'm getting intermittent bursts of static sounds. I've owned Sennheiser wireless systems for many years and never experienced these short bursts of static sounds until recently. I've tried changing the frequency for the transmitter & receiver. This seems to help, but those static sounds persist, just less intermittently. I also tried changing the lavaliere microphone itself (purchased a new one). Still, those freakin' static sounds persist. I'm guessing that the cause is some kind of radio interference??!!?? It doesn't matter where my wife might be in our home, wearing the lavaliere microphone transmitter. So, whatever is causing the interference is not associated with any one area of our house. Finally, the annoying sound is not associated with movement; it's not the microphone rubbing against clothing. My wife can be standing or sitting perfectly still and the static sound persists. (She carefully places the microphone on top of her head, barely sticking out from underneath her wig. It's a placement "trick" she learned from her theater days.)

Are wireless Sennheiser systems problematic for this kind of issue?!? Any other ideas in problem-solving this issue (hopefully without purchasing a different brand of wireless lavaliere system)??

I do own a couple of boom microphones. But the lavaliere microphone seems to provide the cleanest sound of my loving wife's voice (when there're no bursts of static sounds). I'd like to avoid using a boom microphone. (Our "Green Room" is already crowded with cameras and lighting equipment.)

Thank you for any thoughtful suggestions that you might offer.

In the meanwhile, I hope all are well. . . and all keep well!!

Kind Regards,
Ted

Can you put a clip of the noise up? Soundcloud or whatever? The sound of actual interference, co-channel interference, intermod interference and signal strength issues are all quite identifiable. I run many channels of Sennheiser and you get used to RF issues - the old motto is that the most expensive radio mic system is nearly as good as a ten pound XLR cable.

With just one radio in action, the most likely culprit is dead spots and RF 'hole's. Intermod very unlikely with just one transmitter. Interference (here in the UK, I don't know where you are) is most common from TV transmitters and with changes to the band 4G. Sennheiser users often get excited about the band scan, but I have always treated it as useless - it tells you that when you scanned a channel is clear, but that doesn't;t guarantee somebody local is have a Karaoke party an hour later.

How far is the receiver away from the TX? If you are close, then interference must be strong and local. RF noises also get made worse if you have the TX sensitivity turned down, and are compensating in the receiver by turning up. Little 'photos' become BIG 'photos'.

The EK 100 portable receiver scan is totally inadequate for a populated RF environment. I usually use an RF analyzer to choose a frequency bank. Otherwise, Sennheiser's online frequency finder (http://sennheiser.us/freqfinder/index2.html) can ID RF from TV stations in the area which can be a cause of interference,.. lf interference is the culprit . A faulty mic cable can cause ticks and pops as well.

Hi, Ed...........................

Wiki doesn't mention any airport in your area so Radar is unlikely unless you've just inherited a new (US)AF base.

Have you or yours bought a new mobile device recently (and did this problem appear about then if so) or have you been gifted with a new cell tower adjacent to your back yard?

Try eliminating the RF link and go wired from mic (Lav) to camera. Problem still there? Not your wireless system then.

Last but not least has Congress flogged (sold) your available frequency chunk, or part thereof, to some other user? The Senny web site might give you some guidance tho' if it's an unlicensed user somewhere close you're still sunk.

Regards,


CS

If you rule out the cable I'd recommend a digital recorder instead. I always have one as backup for these type of issues. Zoom H1 is still the most inexpensive, but if you can spend a little more I'd get the Zoom F2. https://www.bhphotovideo.com/c/product/1603896-REG/zoom_zf2bt_f2_bt_ultracompact_bluetooth_enabled_portable.html/BI/2855/KBID/3801

Video folk have different needs to the entertainment sector and very different brand preferences. In theatre where I work, Sennheiser is a VERY popular brand and their design feature of many intermod free channels makes it possible to get dozens of channels working happily together, and their software monitoring is very useful to keep everything going. In theatre Lectro products here in the UK are rare, but we see a few in TV and of course Sony are common in TV here but not in theatre! The four digit Sennheiser series are very good in the crowded bands, better than G1,2 and 3 are.

We cannot say what the problem is until we hear it. We’re guessing it’s because of congestion, interference etc, but we don’t know. Most of us will hear a few seconds and immediately know the culprit. RF is one of those subjects that you continually learn and remember. I’ve had an issue in one location where low signal levels seemed the problem, but my Rigol analyser revealed a chunk of the band with strange wide band noise that none of my wide band receivers could hear as noise. If you listen you hear white noise, the nasty hiss. What you don’t notice is the hiss is louder, so the noise just replaces the wanted signal when it drops in the usual nulls. I’ve located the building it’s coming from and it starts at ten am each day and stops at ten pm. My old analyser hid this.

In theatre with tours, you can suddenly have a 14 channel perfectly happy system fail when just one unknown transmitter is turned on. Just two can fail when their intermod performance clashes. I pay a person to stand at a rack and watch a screen and listen. Good value as they hear things start before the audience do. The worst thing is when the broadcasters turn up. Any damn frequency and never a thought to listen first.

Hello -

First, I thank you for taking the time to share your thoughtful comments! I appreciate your helping me problem-solve this situation.

I was trying to think of possible causes of for the intermittent static sounds. We do have a WiFi "Mesh" set-up for internet access. It's a system by Eero which acts as a wireless network for our entire home. I wonder if this wireless network system might cause some interference? Also, another possibility might be a cellphone tower that's about 1 1/2 miles from our home. This tower is visible from our front yard. Could cellphone towers also cause interference?

Below is a "wav" file that provides 4 examples of these bursts of static sounds. (I'm hoping that this uploaded file will playback for you!) These examples were captured from a recent video that my wife and I recently did together. Hopefully they'll give more insight to the cause of these static sounds. (Just click on the link to hear the wav file.)

Again, thank you!

Ted

https://www.dvinfo.net/forum/attachment.php?attachmentid=39633&stc=1&d=1613620102

Could be either just turn off and what you can control and you'll get your answer.

Hi again Ed...................

Sure sounds like wireless network polling/ traffic to me.

Plan A:

Simple (hah!) test is to disable your entire "Eero? Mesh" system and see if that solves the problem.
Do note that "disable" means more than using a remote to power a unit to standby. Standby is quite often still polling/ responding. Physically remove power from every single component of the network and any unit that may try to access it, including your phones/ notebooks/ tv's/ DVR's/ tablets/ dishwashers/ ovens/ aircon and the bloody dog.!

Set up and shoot.

Plan B:

Forget the house and take camera/ wireless system/ wife and self to "ElremoteLoc" at least 10 miles from anything resembling civilization as we know it Jim and even further than that from any cell tower, if such is possible.

Set up and shoot.

Plan B at least has the advantage of a nice visit to the sticks which might do something for the blood pressure if nothing else. Do remember to either leave your phones behind or sans batteries and if dog has a networked collar leave it/ them behind as well.

Not much point going into how to resolve the problem till either A or B above has been tried and either fixed the problem or failed to.

Regards,

CS

I agree, that’s not any of the usual issues and probably the make of the system is irrelevant. Something is swamping the receiver. I also wonder if that is something sweeping past your frequency and you get the noise as it passes. If this is a permanent location you need to sort, and is always there at any time, I’d google to see if there is a local ham radio club. They have people with the right gear and love challenges. They might find it fun to be Sherlock Holmes and find it. They do crazy things like hide transmitters and then have a competition to be first to find it,

Thank you for your sharing your time and thoughts on this issue.

For our next few video projects, I plan on using one of my shotgun mics. It's not necessarily the best solution, but it seems to be the easiest one. Our goal is to "produce" at least one or two of my wife's cooking videos on a weekly basis. (She wants to be a YouTuber.) We're both full-time nurses, often working extra hours for our jobs. So as we plan our time to record and edit my wife's cooking segments, I want to keep things as simple as possible.

I might try turning off our wireless WiFi "mesh" system, though, and see if this might work.

I am sincerely grateful your time.

Ted

P.S. By the way, my loving wife is a great cook! I'm a lucky husband! (I clean up and do the dishes.) LOL!

What frequency block are your Sennheiser system(s) Ed. I have worked in the capital district with up to four G-100 series systems at a time and can likely recommend a generally clear frequency bank to work in. Of course it could be a very localized, though WiFi is usually not problem. .OTOH, a smart phone in close proximity to the Tx or Rx can fork things up ..

What frequency block are your Sennheiser system(s) Ed. I have worked in the capital district with up to four G-100 series systems at a time and can likely recommend a generally clear frequency bank to work in. Of course it could be a very localized, though WiFi is usually not problem. .OTOH, a smart phone in close proximity to the Tx or Rx can fork things up ..

Hi - If I understand your question correctly, I use Sennheiser's A Band: 516 to 558 MHz frequency block.

My wife and I plan on video-recording another one of her cooking segments tonight. I have a "new" audio-recording set-up which involves Sennheiser's wireless lavaliere mic on one track and a shot-gun mic (Sennheiser's MKE 600) on another track. (I'm using Zoom's H6 for the audio-recording device.) I'm going to experiment with configuring higher (different) frequencies for the transmitter & receiver.

I will also make sure that our iPhones are turned off. (I didn't think to do that!! Thanks for the suggestion!)

I've been using Sennheiser wireless lavalieres for years! I've used the rack-mountable receiver versions for live shows - three of them at a time - with never an issue! (My wife and I used to have a nursing & healthcare focused comedy troupe that performed live shows for nursing conventions, years ago.) The issue that I'm experiencing, now, is relatively new. I'm stumped.

Thank you for your response, Rick.

Ted

Below is a "wav" file that provides 4 examples of these bursts of static sounds.

RF "hits". Could be from the cell phone tower, but unlikely. More likely is that it's coming from that phone in your hip pocket. You'd be surprised at how much RF spill you can get from a cellphone, even a good one. Cure for this is to "airplane mode" your phones during filming, and put them in another part of the facility well away from you. Yes, hers too. And any others that might be hanging around.

Also, what frequency are you using? Said another way, you did at least check for clean frequencies (even if Sennheiser's on-board software gets no respect) and setup on what at least looks like an empty frequency, yes? Said another way, you aren't just using the factory default setup are you?

I'm asking because I've used Sennheiser G3's in midtown Manhattan halfway up a hotel tower without a problem. I doubt you've got anything like that much RF around your kitchen. I'm just sayin' that it's probably not the Sennheiser system -- it's probably how you're using it.

All that said, wireless is really the wrong tool for this application. Wired will sound better, is way cheaper, and is far, far, far less susceptible to RF interference. XLR cables are made for this, you know? Blocking RFI is their design purpose.

When I was doing a cooking video project years ago, I bought a pair of Oscar SoundTech 802 (http://oscarsoundtech.com/services.html)s with XLR converters. Nice step up in audio quality from the Sennheiser G3 kit lav, and another nice step up in audio quality from the Sennheiser radio compander. The radio mics got very little use after client heard this setup. And not a single RF hit over several years of this cooking project.

But if you really want to use radios, you have to set them up properly on a clean frequency and be willing to do that again and again until you find a frequency that works out for you. This *requires* you to monitor on headphones in real-time. You wouldn't record video without looking at the monitor would you? Then don't record audio without monitoring either. Get decent headphones and use them. Every. Single. Time.

If it's really a problem you'll have to get an actual RF analyzer like Rick Reineke suggests. Or... move to Lectrosonics or Zaxcom. But then you're looking at real money.

Oh jeez -- you *are* using fresh batteries, yes? If rechargeables, you're using Eneloops, yes? And they're fully charged, yes? Sennheisers are notorious for not liking low voltages -- they really want fresh alkalines. Cheap rechargeables won't give them the higher voltages they want, but the Eneloops will, if properly charged. This was true of the G2 and G3 line. I doubt it's changed much with the G4s, but I don't have much G4 experience.

TV channel 27 (548-554 mHz) is 'vacant' in that geographic area, so any of the following frequencies 'should' be interference free .. baring any close proximity RF or physical wiring issues, like a broken lav mic cable. Additionally, avoid having the Tx antenna in contact with bare skin.
G3/4 - Bank 6:
these channels are also inter-modulation free, so you can run multiple systems at the same time.
1: 548,850
2: 549,800
3: 550,250
4: 551,100
5: 551,500
6: 552,150
7: 552,950
8: 553,500
-------
G2 -- Bank-8
Channel 3 = 549,500
Channel 4 = 551,000, or tune to one of the above G3/4 frequencies.,.. these frequencies are also inter-mod free with the G3/4

PS- Most PSMs avoid using 'shotgun' (interference tube) mics in (reflective) environment, a hyper-cardioid ,mic would be a better. 'o
btw, the clip sounds like it could be the mic/cable, (bias current shorting out can produce staticy sounds) try another mic to troubleshoot. As was stated, the OST mics sound darn good at a reasonable cost, and made in USA (central NJ to be precise)

I've got a number of shotguns - short and long and I hate their sound indoors - last resort recording for me. My favourite for speech is the Beyer M201 which was the BBC local radio and 'round table' mic of choice for years. It's hyper and sitting on a desk stand gives a decent sound at a little more distance than the presenter's mic, but with a similar acoustic.

Rick - I'm going to try out the frequencies that you suggested. Thank You! The actual microphone attached to the transmitter is new. I recently purchased it when this whole mess started. (Unfortunately, the problem persists.) I never thought to consider, or ensure, that the transmitter antenna be kept off bare skin, though. THAT's an easy fix! Again, Thank You!! As for the "shotgun" mic that I plan to use?!?? It's a Sennheiser MKE 600, described as a "super-cardioid/lobar". It's the only one that I own which is "super-cardioid". (Not sure what "lobar" means.) Please read further as I respond to Bruce Watson.

Bruce - Hi. Thank you for taking the time to share your insights and suggestions to my audio problem. Let me share a little bit about myself. From audio/video recording point of view, I am "a hack". In other words, I'm a "learn as I go" and a "trial & error" kind of guy. Also, I rely on the kindness and expertise of others to help guide me through the more challenging situations like what I'm currently experiencing. With that said, I've been "trialing and error-ing" for a long time. LOL! So, I do have some of the basic problem-solving stuff down. For example, I put fresh batteries in for each "gig" or audio/video recording session. Also, I DO use headphones (specifically, the AKG 240 MKII). LOL! Seriously, though. I may or may not be using the best equipment. I honestly do not know. But, I can't afford "the latest and the greatest". (My wife would KILL ME!! LOL!) We're just starting out with video-recording my wife's cooking segments for YouTube. We've been doing this on a semi-regular basis for a few months, now. (So far, my wife has 10 subscribers!!! LOL!) Although I've been doing some kind of videography since around 2006, I'm far from an expert. I do have a degree in composing music. . . specifically in "Film Composition" that I received back in 1982 (from the "famed" Berklee College of Music. . . when it costed $5,000/year for room, board and tuition.) I learned film composition using moviola film editing machines (both upright and flat-bed). So, with film-scoring and film-editing being what it is today, with today's computer-based technology, I'm also "a hack" with these skill-sets. (I learn as I go. . .) I deeply respect the experience and expertise that you, and pros like you, bring to forums such as this one. Again, thank you. And. . . I thank you for your patience with "hacks" like me.

However. . . I am an expert ICU/CCU Nurse. Been doing the nursing thing for 29+ years. (Next year will be 30!!!!) I'm very good at "keeping 'em alive 'till seven-o-five"!! LOL!

On to video-taping my wife. She'll be ready to start in about 10 minutes. Gotta turn on the lights, camera, and action! LOL!

Peace, folks. I say this sincerely. It's been a tough year for all of us. Please be safe. (This past year, I've "bagged and tagged" a couple of covid-19 patients. We're even seeing these poor souls in the teeny-tiny hospital where I work.)

P.S. Hi Paul. Everything is all set for me to go, unfortunately. This includes the Sennheiser MKE 600 microphone. It's obvious that I'm going to need to do more research on the better types of microphones to use in our situation. I will check into the Beyer M201 mic, for sure. Thank you. :)

A follow-up on the other night's video-recording session with my wife. . .

I used both microphones, each assigned to their own track on the Zoom H6 audio recorder. In preparation for Sennheiser's wireless lavaliere system, I turned off our WiFi mesh (all 3 Eero devices), our two smartphones, set the transmitter/receiver to one of the frequencies as suggested by Rick Reineke (553.500), and ensured that the antenna to the transmitter didn't touch human skin. For the "overhead mic", I used the Sennheiser MKE 600. It was aimed about 6" above my wife's wife for the cleanest possible sound.

There seemed less bursts of static sounds from the wireless lavaliere system. But they were there. I remain stumped to the cause of these sounds.

As for the quality of sound using the "overhead mic", it was OK. My wife's voice was clearly heard. But it picked up some of the "room sound". Not much, though (at least to my modest ears).

As for the flourless Chocolate Torte, sweetened by a touch of maple syrup, that my wife baked for this particular video segment?!? Well, according to my loving wife, it tastes like "Ka-ka". LOL! (I don't think she plans on putting that particular video on her YouTube web-page.)

Please know that I am grateful for the insights and suggestions that you shared.

I hope all are well. . . and all keep well. Peace!

Ted

Thx for the update. I wasn't convinced the mesh was the issue since most consumer devices including your phone operate on a different spectrum 2.4ghz as opposed to 500. UHS wireless devices would be more likely effected by tv/radio towers. Like I said before get digital recorder w/lav it's not that expensive, it takes the guess work out and guarantee to eliminate any interference.

I think you said you have a pair of the Sennheiser systems. In normal use, do they both get noise bursts at the same time?

As a test, can you use just one transmitter, and tune both receivers to the same frequency? Do both receivers get noise bursts at the same time?

Consensus seems to be that your issue is not dropouts. If you were getting dropouts, I'd question signal strength. In theory of course all antennas should be the same "polarization" ... ideally all vertical. At really short range and bouncing around a kitchen, I think this is less likely to be the problem. So this is really a very long shot.

I have to agree: you won't have RF problems with portable recorders! There are a few variables, but you might even be able to use your Senny mics with your new recorders.

I’m a little confused as to how you are testing. Do I understand correctly that you change some things, then record a show, then review it for quality?

Related, how many of the frequencies Rick R listed above have you tried?

If you’ve not yet done so, it’s time for some tedious channel flipping while listening with headphones. Test every single one of those freqs with any nearby phones *or LTE devices* (some Apple Watch, tablets) turned off or in airplane mode.

It does take a minute for every single change of frequency. If you find a clear channel write it down and keep going. If you hear static/interference/noise in your headphones during a show stop recording and change to a different clear frequency you’ve identified.

Also check any Squelch settings in the receiver’s menu. Try Medium or High settings if available. If Pilot Tone is turned off turn it on.

Seth - I've tested some but not all of the channel frequencies that were recommended to me. (I allowed frustration to get the best of me, unfortunately.) You're right, though. Testing every single channel is the proper thing to do. As for the squelch settings?? I believe that it's set to medium. I believe that the Pilot Tone is on.

Greg - For the sake of clarifying things, I have a pair of receivers that are set to the same frequency of the one transmitter that's being used. The frequencies to the two receivers and one transmitter are changed to the same channel when changes are made.

Last evening, I purchased a lavaliere microphone that will be directly connected to the Zoom H6 audio recorder. Hopefully it'll be delivered by this coming weekend (when my wife and I are both off from work, and able to do more video-recording). The wireless transmitter/receiver idea is being put aside for now. I will still test things out, but at my own pace, without the anxiety of problem-solving this audio-related issue while attempting to churn out videos for my wife's new YouTube cooking channel.

You all are kind and generous in offering your collective input and suggestions! I am sincerely grateful!!

Peace! :)

Ted

I had two sources of interference using Sennheiser wireless mikes, when I was doing video. One was from cellphones (which apparently check in with the network periodically) and the other was with another nearby Sennheiser wireless system, on a different frequency. Perhaps the IF stages conflicted, don't know. This has been a lengthy thread, sorry if I'm duplicating something others have said.

A cable will, if you can manage it properly, and it doesn't get tangled, provide a much, much safer system if you are in a dodgy area - can you borrow a radio scanner, and with your kit off, listen on the frequency and see if you hear any bursts of RF?

Paul - I purchased the "Sony ECM-77B Miniature Omnidirectional Lavalier Mic", which has a 9 1/2 foot cable (with the standard 3-pin XLR - male connector). It can be powered either by phantom power or one AA battery. I purchased a regular XLR cable to add length, and to make connecting and disconnecting easier for my wife in-between takes. As for borrowing a radio scanner, I don't know anyone who owns one. I wouldn't even know how to use one, I'm embarrassed to admit.

Battle Vaughan - Thank you for your input. My wife and I live in the middle of the woods. I doubt that there's anyone near me, or even in my town, that would use the Sennheiser wireless system that I own. HOWEVER, there might be people who own ham radios, though.

I'm stumped. I've used these wireless systems in live performance situations in years gone by. These 3-player performances were often in large conference rooms in large hotels in large cities. I've had worn-cable issues, but not the type of issue that I'm currently experiencing.

Just for the kicks and giggles. . . Here's an OLD photo of one of our Too Live Nurse performances, taken . . . oh. . . 20+ years ago. I used an older Sennheiser wireless lavaliere system back then. Good times. . . good times! Just click on the link to view the photo. Enjoy! :)

http://www.toolivenurse.com/photos3/images/15_Show10_jpg.jpg

Love it! Ed - re the radio people suggestion - the hams are an odd lot, but get fun out of radio mysteries - so google your town and ham radio club. I bet there is one, and you could email them - I've actually done a bit of interference finding this week - had a knock on the office door and somebody asked if I could help track down some interference to their marine radios (my office is near a busy port area). Tracked it down quite simply to a microwave in a kitchen in their building - every time somebody used the oven, their boat radio didn't work!

Seriously - if there is a radio ham presence - they might be willing for a bit of investigation! Just ask.

Love it! Ed - re the radio people suggestion - the hams are an odd lot, but get fun out of radio mysteries - so google your town and ham radio club. I bet there is one, and you could email them - I've actually done a bit of interference finding this week - had a knock on the office door and somebody asked if I could help track down some interference to their marine radios (my office is near a busy port area). Tracked it down quite simply to a microwave in a kitchen in their building - every time somebody used the oven, their boat radio didn't work!

Seriously - if there is a radio ham presence - they might be willing for a bit of investigation! Just ask.
A microwave could be the culprit here too but the audio clip sounds like communication than a pulsating AC wave you get electric interference. I've always found it more useful to have a plan B when using wireless. Most jobs you have limited time to trouble shoot, you just move to plan B, whether that be wired or audio recorder.

Ed ...
Solving problems with trial-'n-error take time; been there, done that, for many years.

A lot of very good suggestions here and after reading over the posts there is one that Chris made back in #9 that might be worth taking another stab at:


Plan B:

Forget the house and take camera/ wireless system/ wife and self to "ElremoteLoc" at least 10 miles from anything resembling civilization as we know it Jim and even further than that from any cell tower, if such is possible.
CS

Only this time, taking the two systems outside and away from the house a few hundred yards to get away from as much electro-magnetic interference (EMI) as possible that might be emanating from the house. Do a test of the two setups to see if the noise still exists. Do the turning off of the cell phones and maybe getting away from the car, too.

Another few questions:
Is this interference at any kind of a regular interval? Or is it sporadic?
Any connection with the heating system fan? Refrigerator start-up? Electric motors have an in-rush current that peaks at startup.
With a heater, there is a time when it heats up then another when the fan starts blowing the air.

Greg - For the sake of clarifying things, I have a pair of receivers that are set to the same frequency of the one transmitter that's being used. The frequencies to the two receivers and one transmitter are changed to the same channel when changes are made.

Ted, one important question you didn't answer ...

Do both receivers have the noise hits at the same instant, or at different times? If both are hit at the same instant, that would suggest some strong source of RF interference nearby.

Also: does your cookstove use combustion for heating (as opposed to an all-electric range)? If combustion, does it have an electronic igniter? Something that crude might tend to spew out interference over a wide range of frequencies.

re the radio people suggestion - the hams are an odd lot

Hey, I resemble that remark! K3GEM, originally licensed in 1978.

EDIT: By the way, hams would not legally be transmitting in the frequency range used by your mics, so they should not be causing the interference.

However, they can legally receive in that frequency range, so as someone suggested, they might be able to help you locate the source of interference.

Ed ...
Only this time, taking the two systems outside and away from the house a few hundred yards to get away from as much electro-magnetic interference (EMI) as possible that might be emanating from the house.
This probably should have been the first test. If you can establish whether it's coming from inside or outside the house.

Btw why is he using two receivers?

Greg - Yes. I'm getting the intermittent bursts of static sounds on both receivers. One transmitter and receiver are almost brand new (purchased several months ago).

Pete - I'm using two receivers for two out of the three cameras that I'm using. (I don't have a 3rd receiver for the 3rd camera, at this time.)

Taking the wireless set-up out of the house is a good idea. I'll be doing this at a later date. In the meanwhile, I should be getting the new lavaliere microphone that'll be attached to the Zoom H6 audio recorder to get a good, clean sound without the annoying static sound that I'm getting (from the wireless lavaliere set-up). For the other two cameras, I'll just use the internal microphones for now.

Here's a photo of our "Green Room".


https://www.dvinfo.net/forum/images/attach/jpg.gif

Ted, maybe this was implied in your answer, but you didn't specifically say so and it's an important detail. Are you getting the static hits on both receivers at the same instant?

ALSO is your range a combustion type (burning natural gas, propane, etc.)? If so, do the static hits coincide with using the electronic igniter on the burners?

Or is there no range involved (per your "green room" photo)? Somehow I imagined cooking would involve some source of heat, but then again I'm no cook.

Greg - Yes. I'm getting the intermittent bursts of static sounds on both receivers. One transmitter and receiver are almost brand new (purchased several months ago).

Pete - I'm using two receivers for two out of the three cameras that I'm using. (I don't have a 3rd receiver for the 3rd camera, at this time.)
Only one camera needs the wireless lav feed, other cameras can use their internal mics since their audio should only be used as a scratch track for syncing purposes.

The OP hasn't posted for two weeks now. Has anyone heard from him off-forum? I hope his disappearance indicates that he identified the problem and just didn't bother to get back to us. I'm curious what (if anything) he's found out.

The OP hasn't posted for two weeks now. Has anyone heard from him off-forum? I hope his disappearance indicates that he identified the problem and just didn't bother to get back to us. I'm curious what (if anything) he's found out.

Oh dear. . . My apologies! LOL!

I've been doing extra shifts at work. (I'm an ICU/CCU Staff Nurse and Per Diem Shift Supervisor for my hospital.) Work has been busy!! (Ugh!) Anyway. . . . an update. . .

The one test that I should do, but haven't done yet, is to take the pair of the wireless Sennheiser system outside, free from any kind of interference, and see if the problem persists. Although this particular set is nearly brand new, I simply might have a malfunctioning wireless lavaliere system.

The solution to ensure good sound?!?? I purchased a SONY ECM-77B lavaliere microphone and attach it, via a regular (extension) XLR cable, to my happy ZOOM H6 recording device. I get a good clean audio signal with none of that frustrating intermittent static sounds. The immediate problem is now solved!

Still. . . It would be nice to use the wireless lavaliere system. The new solution using the SONY lavaliere microphone works great when we video-record in our Green Room. (See one of my previous posts, here, for a photo of that room). But my loving wife wants the option of recording cooking videos in our downstairs kitchen. Having a "wired" lavaliere system could prove to be cumbersome. It would be nice to be able to use the wireless lavaliere system during any video-recording production outside the Green Room. So, I need to do some additional testing with the Sennheiser system. If it ends up being a malfunctioning system, I might consider purchasing a new wireless lavaliere system from a different manufacturer.

I wish to be clear about something. I am sincerely grateful for the time and expert advice that you all have shared here! Thank You All!!

Respectfully,

Ted

Swapping to a different manufacturer will only work if it is on frequencies that are different and interference free. Swapping to different banks on your current system could be just as effective.