FM Broadcast transmitters?

[multisync]

Heading for Dayton Hamvention in May and will probably buy a FM transitter 88- 108mhz, 1 watt version.

Anyone know what Industry Canada's rules are regarding transmitter output power?

Yea, I bought one of those cheapy, frequency drifting Radio Shack ones...GARBAGE.

 

[to2way]

All AM/FM broadcast transmitters require licensing approval from Industry Canada. Depending on the ERP, you will have to apply for a VLPFM (very-low power FM) or LPFM (low-power FM) permit.

See the attched URL for the application form IC-2389 entitled:
Application for a Broadcasting Certificate Very Low Power FM (VLPFM) or Very Low Power Television (VLPTV) in Small Remote Communities

http://strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/en/sf06113e.html

The equipment will also require a TAC (technical acceptance certificate) in order to be used in Canada. (Our equivalent to an FCC approval number).

 

[multisync]

Thanks for the reply. I visited the site. I guess the only thing I'm really looking for is the maximum amount of power I can use BEFORE I'm required to fill out the licence app. In the US I believe MAX power is 25mw.

I checked the site but it's a maze of different publications.

You wouldn't happen to have this info on the power issue?

 

[to2way]

Applicable information is in bold text below.

Refer to document RSS-210 entitled:

RSS-210 - Low Power Licence-Exempt Radiocommunication Devices (All Frequency Bands)

http://strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/en/sf01320e.html


6.2.2 (k) 88-108 MHz

The field strength shall comply with the following:

(1) not exceeding 250 microvolts/m measured at 3 metres with an averaging meter (equivalent to 19 nW
EIRP). Any type of modulation (and carrier frequencies within the 88-108 MHz band) may be used
for this category, or

(2) not exceeding 100 microvolts/m measured at 30 metres (equivalent to 1000 µV/m measured at
3 metres, equivalent to 300 nW EIRP ) only if the modulation is FM and the carrier frequencies are
chosen from the following set: 88.1; 88.3; 88.5; 107.7; 107.9 MHz, i.e. spaced every 200 kHz.

The occupied bandwidth shall not exceed 200 kHz.

Outside this 200 kHz band (as well as outside the band 88-108 MHz),
Table 3 limits apply.

Sections 2 to 5, 6.3 to 6.6, 7 to 7.5 and 9 to 15 apply.

 

[multisync]

WOW. I think I got a Industry Canada employee replying.

Great info. Thanks

 

[mrweather]

300 nanowatts? Boy, talk about a BIG signal!

 

[multisync]

Oh well. I'll keep the RF pot turned right down or I'll walk around the lot until the signal fads just past the proerty line...or a house or two.

Those junky FM transmitters you get at eletronics stores won't make the trip to my stereo which is only 30 feet away from the computer.

 

[W5JLF]

This is the transmitter that I am using. It will reach to the second house past mine if I don't keep the antenna short.
http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=FM10C

 

[multisync]

That's the company who I plan on buying the FM transmitter from at Dayton.

I was looking at getting the FM35WT. $269 US.

But if your getting two houses away on that model you have I may have to reconsider my original BIG purchase.

Thanks

 

[W5JLF]

When I ordered the transmitter I also ordered the 12VDC wall wart that they recommend. This wall wart induced a large AC hum into the transmitter. I then ordered the 12 VOLT 300mA SUPPLY PS-3, ($ 9.95) from http://www.dckits.com/. I placed this assembled kit in a RS 6x3x2" Project Enclosure, http://www.radioshack.com/product.asp?catalog_name=CTLG&product_id=270-1805, along with fuses on both the AC input as well as the DC output. The AC leg has an On/Off switch and a pilot light. This fixed the AC hum coming out of the transmitter. This system is on 7X24 and does not drift. I will direct email you some pictures if you want them.
Joe

 

[captain_crash911]

fm transmitter

try a high end car audio store
I picked up one by "myron Davis" model ant-108 it has a range about 600 feet . i use it with my mp3 player and it works great . no tuning and you can select from 4 different frequencies, it is about $60 can it is about the size of a cell phone. :lol: also i found out that canadian tire is now selling for around $30.00. i have hooked mine upto my scanner and when i am traveling in a group we tune our radio to 88.7 and we all listen to the same source

 

[Jammin_Jay]

Try Ramseyelectronics.com. They sell kits as well as assembled units. They are near Rochester. NY