Jump to content
Light-O-Rama Forums

Whole House Transmitter Version 3


scubado

Recommended Posts

I just noticed LOR sells a new transmitter V3.  Can broadcast in mono or stereo, longer range in mono.  I know version 2 gets frowned upon here, was wondering if anyone has tried this one yet?  Looking to broadcast stereo at least 100' clear.  I have an opportunity to try a MBB6000 soon, but it's mono output.  Yes, I'm very aware of EDM transmitters and it's my first choice, just exploring options.

Link to comment
Share on other sites

Scubado, Geo. Simmons and others have tried the CZ05??? what ever it is that cost $60 - $80 and say it it pretty good, you might want to check with them about it. I use an EDM and can't tell you about it other than what I have heard.

Link to comment
Share on other sites

The Whole Room Transmitter costs $125 and maybe you can reach the street if you broadcast in monaural.  The CZH-05B reaches as far as you need it, sounds 98% as good as my EDM, sells for $62 bucks (and free shipping if you're a Amazon Prime member), and broadcasts in stereo with a microphone input jack for immediate announcements if needed.

 

Hmmm...

 

If money is no object, why not get two of the Whole Room models and maybe you can daisy-chain them together to reach the street...

 

Just saying...

Link to comment
Share on other sites

You can find the CHZ-05B (and simmlar modles) on EBay for around $40 if you don't mind a month for shipping.  Search for "05B" and you will get several versions.  I've used two different modles and they both work pretty well.  They reach about a quarter to half a mile.  One thing I've noticed is that the input jack can be over powered very easy.  I have to turn my computer volume down to about 25% so that it doesn't get all jarbled...  Other than that, they do great for the price.  I've been using one of them for three years in a row with no issues.


Search for "05b transmitter" for a more defined search. 

 

--missing the edit button :(

Link to comment
Share on other sites

--missing the edit button :(

Don't worry - maybe now that the season is ending and all the people with oh, so, delicate sensibilities will head off to whatever else they do all year, and the LOR gods will grace us lifers with the return of the Edit button.

Link to comment
Share on other sites

9/10's of a transmitter is the Antenna, I am in the process of building a "Audio Line Driver set" (Stereo drive and receive) so I can mount my transmitter up at my antenna tower some 300 feet from my home.

 

I had the transmitter there earlier (late October) and could get 2 miles in any direction with a simple full wave wip made from some RG6 Coax the antenna was NOT at the top of the tower, only about 1/2 up or so.

 

I have a post about the line driver in the LOR accessory's section.

 

http://forums.lightorama.com/index.php?/topic/30395-add-on-remote-300-feet-fm-transmitter/

 

 

I'll be posting the results there when I get the parts from TI.

 

 

Just thought you might want to know...

 

Greg

Link to comment
Share on other sites

I'm sure you know what you're doing, and I definitely wish I had any kind of antenna tower to hang stuff from, and I'm not trying to put you down in any way.

But I'm sitting here right now looking at my CZH sitting on a bookcase in front of my office window with it's rubber ducky antenna and smiling because on it's high power setting (which I'm not using) it reaches at least that far as is. Which, of course, is probably twenty times farther than it ever needs to, but still...

Just saying...

Link to comment
Share on other sites

I built and am currently using the Ramsey FM25B.

 

I have also built and have as backup the Ramsey FM30B.

 

I am using the antenna that came with the kits and can broadcast about 2 blocks.

 

Walt

Link to comment
Share on other sites

From the FCC OET Bulletin 63:

 

Antenna Requirement

Changing the antenna on a transmitter can significantly increase, or decrease, the
strength of the signal that is ultimately transmitted. Except for cable locating
equipment, the standards in Part 15 are not based solely on output power but also take
into account the antenna characteristics. Thus, a low power transmitter that complies
with the technical standards in Part 15 with a particular antenna attached can exceed
the Part 15 standards if a different antenna is attached. Should this happen it could
pose a serious interference problem to authorized radio communications such as
emergency, broadcast and air-traffic control communications.

In order to prevent such interference problems, each Part 15 transmitter must be
designed to ensure that no type of antenna can be used with it other than the one used
to demonstrate compliance with the technical standards. This means that Part 15
transmitters must have permanently attached antennas, or detachable antennas with
unique connectors. A "unique connector" is one that is not of a standard type found in
electronic supply stores.

It is recognized that suppliers of Part 15 transmitters often want their customers to be
able to replace an antenna if it should break. With this in mind, Part 15 allows
transmitters to be designed so that the user can replace a broken antenna. When this
is done, the replacement antenna must be electrically identical to the antenna that was
used to obtain FCC authorization for the transmitter. The replacement antenna also
must include the unique connector described above to ensure it is used with the proper
transmitter.

 

Penalties for Operation Without A Permit or License   

The Commission considers unauthorized broadcast operation to be a serious matter.  Presently, the maximum penalty for operating an unlicensed or "pirate" broadcast station (one which is not permitted under Part 15 or is not a Carrier Current Station) is set at $10,000 for a single violation or a single day of operation, up to a total maximum amount of $75,000.

 

Adjustments may be made upwards or downwards depending on the circumstances involved.  Equipment used for an unauthorized operation may also be confiscated.  There are also criminal penalties (fine and/or imprisonment) for "willfully and knowingly" operating a radio station without a license.  DON'T DO IT!

 

Just Saying.....

Link to comment
Share on other sites

Since when did EMS or Air traffic get broadcast on standard FM band ?

 

I went to the site that has the PDF of this exact standard.

 

http://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet63/oet63rev.pdf

 

There is A LOT more to this standard than what has been posted in #10.

 

IF it truly concerns someone, I would suggest that they review the actual document (in the link I posted here) as I believe that the context in post #10 has been taken "out of order" from the real FCC document, nor has the ERP been considered, or the transmitters allowed output, BOTH if correctly used, would negate an issue within the said document.

 

Read the link for yourself.

 

Greg

Link to comment
Share on other sites

  • The topic was locked
Guest
This topic is now closed to further replies.
×
×
  • Create New...