i am finally going to get a Decade FM!!!

It is nice when a plan comes together.

Neil

I am using a Decade CM-10 set to BETS-1 for Canada and it works great! Sounds good. Can get to the volume of other FM stations without distortion.

Mark

Have fun, you guys!

Bruce, DOGRADIO

completed my order today. i should be getting it sometime next week.

@Mark, is it a switch inside the unit that switches between canada and usa or is it a pot that needs to be adjusted? i'm assuming the CM-10 is basically the same as the ms100s? just with a simpler Stereo Gen circuit?

Sorry couldn't reply till now but power was out for 2 1/2 days!
In answer to your question...no, the CM-10 is not like the MS-100. The CM-10 is basically a Decade modified CZH 05B chinese transmitter to meet either FCC or BETS-1 specs. They have two batches...ones for Canada and others for the USA and the power is fixed, not adjustable with a switch or pot.
The audio is also improved and is the only transmitter that I've tried that can get to the same volume of the other stations.
The MS-100 is designed and hand made by Decade in Canada and thats why so expensive...even for the entry level mono model.
Was to pricey for me and the CM-10 works at the same power level as the MS-100, and in my opinion the audio quality difference wouldn't justify the price.
Gave me peace of mind to have the Industry Canada certification label indicating this is approved for unlicenced use.

Mark

There is an internal pot to adjust the power of the MS-100.  Looking at the opened radio from the top and front, it is near the front to the far left on the circuit board.

There are also an adjustment for modulation (in the middle of the circuit board), but on mine it was sealed with a bit of wax (not sure you should touch that, in any event).

Given the FM rules (and rules of thumb) in the U.S., all you would need to do is to adjust that pot so that you get a maximum of 200 feet range with an ordinary consumer radio.  Although, if you're purchasing it in the U.S., it should already be adjusted correctly.  And if you're purchasing from the factory, they will adjust it for you, based on your origin country.

it's full of adjustments and built like a tank. uses very high tolerance components. for those who know what they are doing it can be adjusted to part 73 spec's using the internal adjustment VR's. it has adjustments for null, symetry, modulation, etc. it's built like a commercial exciter puts out 1mW into 50 ohms is spectrally excellent. the stereo generator is a standard TTL switching stereo encoder similar to the North Country MPX96. the RF section uses a custom programmed atmel chip and PROM chip for frequency generation. everything else is stanadard off the shelf parts and standard RF stange configuration, oscillator, Modulation, IPA, PA stages, followed by a 4 pole LPF. it has a 35" collapsable whip. it uses the case for ground and the whip for hot. it's a 50 ohm output of exciter but the antenna system is not quite 50 ohms which loads down the final RF stage thus dropping down that 1mW as evidenced by the very short range. turning it up to 1mW got me out about 75 ft on 88.9 with transmit whip antenna fully extended to 35 inches to a portable grundig radio with the receiving whip antenna collapsed. i'm sure with the grundigs whip fully extended i would get out to about 100ft. from a design stand point it is very well built. from a range standpoint it meets part 15 even on the high setting or at least mine does and range could be much better. in all fairness i am comparing it to my broadcast vision transmitter and i have a very far off co channel station causing me interference but the only absolutely clear frequency here is being used by a very local (next complex over) 1 watt FM pirate

it would be interesting to see what it will do into a 1/2 wave dipole fed with low loss lmr400.

I was worried that I might also need to get a Decade FM Transmitter since my C.Crane FM Transmitter has had a bad static problem, but today I went into a Hindu-Buddhist Spell and using doll-house screw-drivers took the thing apart for the first time.

The real secret to surgical opening of the C.Crane Egg-Shell is wads of glue holding it together as if there was a demon hand inside.

Easy to spot the expected and suspected problem, a broken solder point right where the antenna assembly attaches to the circuit board.

The C. Crane is able to shoot my STL signal (Studio Transmitter Link Signal) into the next room for re-transmission on the SSTran AMT5000, best transmitter I know of.

It's amazing we are able to do anything with the 1-pixel FM output of Part 15.

1-pixel FM output...  But then again, just like that 1 pixel on your LCD monitor that won't shut off, it can be very obvious.

looks like i might be getting another decade FM. this one is mono. and so the part 15 certified fm network is on it's way to being built out. just need some pc's and need to figure out how to make them fully automatic and not need any user intervention since they will be in peoples apartments and i can't be in and out of them all the time fixing pc issues.

Maybe a remotely accessed pc could solve the situation. Maybe you could get into the remotely located pc's right from your home pc.

I fiddled with remote controlling pc's when I had several Amiga computers, and it was fascinating.

yep. my second decade is paid for and being shipped

The original C.Crane FM Transmitter is Model FT-007, FCC ID# BYGG006.

I have one of these and recently repaired it.

A later version is now offered by C.Crane, Digital FM Transmitter 2, Item # FM2.

Does anyone have the FCC ID# of the newer version?

Also, what is different about Version 2?

I just interested in FM transmitter for few years. Someone introduce me buy a low power transmitter on website: www.fmuser.net. I have a lot question about FM transmitter and sincerely want to communicate with the member of this forum.

Thanks,

Louis