Jump to content

Recommended Posts

Due to the location of my house from the road I will have to mount my fm transmitter on my mailbox. This is about 200ft from a location my computer can be safely placed. Can I use 3.5mm extension cables to connect the fm transmitter or is there a different or better way to achieve the fm station? Thanks for your help

Link to post
Share on other sites

I would suggest a stronger transmitter then use an attenuator to reduce the signal if you had to. The attenuators are cheap too.

This way you keep the transmitter close to the computer and get the distance you need.

 

But if that is not the affordable option, then yes, a 3.5mm extension cable will work and would probably be the other option.

Link to post
Share on other sites

Thanks Santas Helper. Any recommendations for the stronger transmitter or attenuator. I currently have a "whole house fm transmitter 3 " same as the one sold on the lightorama website. As this is my first attempt at controlled lighting and such I am probably taking on too much for the first year but I want to make it special. Thanks again

Link to post
Share on other sites

Here is a thread referring to a couple of them.

 

http://forums.lightorama.com/index.php?/topic/36776-fm-transmitter-suggestions/#entry339384

 

I use a Mobile Black Box V4000 transmitter but they discontinued the V4000. The v6000 is mono so do not purchase that. The v3000 is a newer model I'm not familiar with.

 

The attenuator depends on what transmitter you buy. Most have the BNC connection but also other variables like the ohms and dB must be considered. Again, depending what transmitter you purchase.

 

https://www.google.com/search?q=attenuator&oq=attenuator&aqs=chrome.0.69i59j0l5.3296j0j4&sourceid=chrome&es_sm=122&ie=UTF-8#tbm=shop&q=bnc+attenuator

Link to post
Share on other sites

Due to the location of my house from the road I will have to mount my fm transmitter on my mailbox. This is about 200ft from a location my computer can be safely placed. Can I use 3.5mm extension cables to connect the fm transmitter or is there a different or better way to achieve the fm station? Thanks for your help

 

I run about 110 feet of cable to my audio power amps for the front yard speakers, and almost 200 feet of cable to my FM transmitter without a problem - HOWEVER - I'm NOT using a 3.5mm extension and I don't recommend it.  What I'm doing is this.  The show computer outputs to a small sound mixing console.  I also can hook a few other things to different inputs of the mixer.  The main one I use is a wireless mic.  For my yard speaker amplifiers, I have one set of outputs from the mixer that is converted to a balanced signal using a pair of audio isolation transformers and run each channel in a separate twisted pair shielded cable.  At the amplifiers, I convert it back to an unbalanced signal with isolation transformers.  The reason for going to a balanced cable is that any interference will be imposed on both wires in the cable and get cancelled out in the isolation transformers at the far end.  I do the same thing with a separate output from my sound mixer for my FM transmitter except I don't have to use the isolation amps at the mixer end because my sound mixer's main output is already a balanced output.

 

BTW, this is a broadcast engineer's trick where audio quality is right up there with God.  Yes, I have worked as a broadcast engineer in one of the largest broadcast radio markets in the world.

Link to post
Share on other sites

You want a CZH-05B. Search Amazon. Get one from a stateside vendor. Make sure it has a rubber ducky antenna - stay away from their telescoping crap antenna. You should be able to get one for about $60-70 delivered. Plenty of power, excellent stereo sound quality, and built-in attenuator/gain control so you can dial it up/down to suit your needs. Problem solved.

Link to post
Share on other sites

You want a CZH-05B. Search Amazon. Get one from a stateside vendor. Make sure it has a rubber ducky antenna - stay away from their telescoping crap antenna. You should be able to get one for about $60-70 delivered. Plenty of power, excellent stereo sound quality, and built-in attenuator/gain control so you can dial it up/down to suit your needs. Problem solved.

 

I placed an order for one of these about an hour ago. The price is about 1/2 off and the ratings for it are very good. :)

 

I'm going to compare it to my Mobile Black Box V4000 transmitter.

Edited by Santas Helper
Link to post
Share on other sites

I placed an order for one of these about an hour ago. The price is about 1/2 off and the ratings for it are very good. :)

 

I'm going to compare it to my Mobile Black Box V4000 transmitter.

I predict you'll be totally delighted. I've had a couple of them since 2010 and love 'em. I especially like the mic input. My EDM, in and of itself a mighty fine transmitter, has been assigned as a back-up since the first time I plugged in and listened to the CZH.

Link to post
Share on other sites

I predict you'll be totally delighted. I've had a couple of them since 2010 and love 'em. I especially like the mic input. My EDM, in and of itself a mighty fine transmitter, has been assigned as a back-up since the first time I plugged in and listened to the CZH.

 

Thanks George. I saw an earlier post where you mentioned it before and took the plunge. What is the distance from your transmitter to the viewing area/road?

Link to post
Share on other sites

For what its worth, I have the CZE-05B and it cannot match the performance of my now dead MBB-V6000 even though that was in mono.  It took a telescoping antenna for the V6000 to reach the road.  The CZE-05B has the rubber ducky one and it barely goes 20 feet past my front window.  I'm hesitant to buy a CZH-05B with the rubber antenna for fear of the same problem.  Why would I see an improvement with the "H" over the "E"?

Link to post
Share on other sites

For what its worth, I have the CZE-05B and it cannot match the performance of my now dead MBB-V6000 even though that was in mono.  It took a telescoping antenna for the V6000 to reach the road.  The CZE-05B has the rubber ducky one and it barely goes 20 feet past my front window.  I'm hesitant to buy a CZH-05B with the rubber antenna for fear of the same problem.  Why would I see an improvement with the "H" over the "E"?

Bob - I can't answer your question. I bought mine in 2010. Back then all I saw was the CZH-05B model and all they offered was the rubber ducky. Since then, there's all sorts of variations cropping up, and from what I can tell based on user comments, quite a few are junk. 20' from the window? Are you sure that's not a Whole House turd in disguise? I think mine transmits farther than 20' without even being plugged in.

Sorry Tom - hard to keep up this time of year. My transmitter ls located about 30' from the street and it's positioned about 6' above ground level. We get crystal clear coverage for at least two blocks in any direction.

Link to post
Share on other sites

I jokingly have said I should have bought a whole house turd instead of this.

2db14b9c85d0011b8a50132095727dab.jpg9759d9593632f711e1540d63935d2d7c.jpgf28e475688af13bffdb6dd9c7764dc7a.jpg

The transmitter is essentially on a 2nd floor window sill as we have a bi-level home. See the windows above and to the left of the door. That is where it is.

Edited by Bob Hall
Link to post
Share on other sites

Sorry Tom - hard to keep up this time of year. My transmitter ls located about 30' from the street and it's positioned about 6' above ground level. We get crystal clear coverage for at least two blocks in any direction.

 

Thanks for the info George. And I understand about the "time of year" thing. :)

Link to post
Share on other sites

Just asking, but have ya thought of building a Dipole antenna? I built one and went from maybe 50 feet with the stock antenna on my FM02 to a good 300 feet clear.

Link to post
Share on other sites

I built a j-pole for my EDM back in the day. Worked great. Still attached to the house in case I ever need it again. Fortunately, the CZH-05B doesn't need anything more than it's rubber ducky to exceed even the range of the j-pole.

Link to post
Share on other sites

Just asking, but have ya thought of building a Dipole antenna? I built one and went from maybe 50 feet with the stock antenna on my FM02 to a good 300 feet clear.

 

 

I built a j-pole for my EDM back in the day. Worked great. Still attached to the house in case I ever need it again. Fortunately, the CZH-05B doesn't need anything more than it's rubber ducky to exceed even the range of the j-pole.

 

I've considered this as the next step, but honestly, I will not have the time to do it.  I'm trying to get time off of work so I can even put out my regular display.  Working 70 hours a week over 3 jobs has me stretched too thin.  If I knew for a fact that getting the same transmitter that George has will work, I'd rather do that.  I'm now sure what the difference between the CZE (mine) and CZH (His and others) really is.  

Link to post
Share on other sites

I've considered this as the next step, but honestly, I will not have the time to do it.  I'm trying to get time off of work so I can even put out my regular display.  Working 70 hours a week over 3 jobs has me stretched too thin.  If I knew for a fact that getting the same transmitter that George has will work, I'd rather do that.  I'm now sure what the difference between the CZE (mine) and CZH (His and others) really is.  

Dang jobs always be getting in the way of peoples fun time.

Edited by jerry72
Link to post
Share on other sites

I got the good antenna for my CZE-05B built today.  Did a quick test and it's working great.  Summary version is it's a 1/2 wave vertical dipole built from 3/8 inch copper tubing enclosed in 1/2 inch PVC.  It got a coat of flat black paint which is now drying and then final mounting later this evening.  I will take a couple photos in the morning and post them here.

 

No more Whole House Transmitter for me.  Although in defense of the Whole Room Transmitter, it survived being drenched last year not once, but twice before I found the water leak in the brick column where it was mounted.

Link to post
Share on other sites

I'm glad it didn't.  I had gotten the Whole Room Transmitter before I knew better.  After the first drenching, I ordered the CZE-05B from Amazon and figured the WHT would not last long after the drenching.  Ended not putting the CZE into service last season at all.  I have the transmitter right out by the sidewalk so if it gets 100 feet it will work for me.  I did find out about the hidden little switch and had a better antenna on it.  Between those, it did all right for me, but planned all along to use the CZE-05B this year.

Link to post
Share on other sites

I promised yesterday to post some photos of my newly built antenna for my CZE-05B FM transmitter.

The transmitter is in this brick column.  The upper part of the antenna housing is the black pipe extending above the back of the column.

 

FM-Antenna_1.jpg

 

 

From a different angle.  The antenna elements themselves are about 28 inches long and are enclosed in the black painted PVC pipe.  The lower pipe besides housing the bottom half of the antenna, is buried a little into the ground to mechanically support the weight of the antenna structure.  The upper portion of the antenna is a couple inches shorter than the pipe so that if I ever change to a lower frequency, I can extend the antenna without having to rebuild the housing.  The lower section of the antenna extends to within a foot or so of the ground.  And yes, my dwarf Mandarin Orange is covered with oranges.  They are mostly ripe now and taste great!

 

FM-Antenna_2.jpg

 

 

A closeup of the center feed point.  This is built inside a 1 inch T style PVC condulet with reducers to the 1/2 inch pipe that houses the antenna.  It's a little hard to see in this photo, but there is a piece of polycarbonate that holds the two antenna elements together.  The antenna itself is not anchored to anything, but the 3/8 inch copper tubing has enough slight bends (a result of unrolling it) that it drags enough going into the 1/2 inch PVC that it stays in place.  After the season I am going to add a nylon bolt through the polycarbonate into the PVC of the condulet to hold the antenna in place.

FM-Antenna_3.jpg

 

 

With the cover plate in place and showing the mounting to the brick column.  When I built the column, I installed a single gang conduit box near the top with the expectation of using it for a LAN connection when needed.  I have never used that, but the conduit into the box makes a perfect path for the antenna cable.  For the antenna mounting, I just attach a black coverplate with a conduit fitting.  You can also see the 1/2 to 3/4 inch and 3/4 to 1 inch reducers at the top of the condulet.  The pipes enclosing the antenna elements are not glued so I can remove them to adjust the length of the antenna elements if needed.  Any yes, I should have painted the screws when I painted the rest of it...

 

FM-Antenna_4.jpg

 

Overall a fun little project and it's working great!

I have the CZE-05B on low power and have a 3dB attenuator in line and I still have better coverage than I had last year.  And the audio quality is FAR better than the WHT ever had.

  • Like 2
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...