• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

101.9 FM Madison WI

I

IKHNetworks

Is anyone else in Madison Wisconsin? I would love to know if anyone else lives by S Park St in Madison.

I just noticed 101.9 FM is broadcasting audio from WSJY 107.3 FM - I can't find any details on FCCData.org about this.

FCCData doesn't show any LPFM on 101.9 FM in this area or any station with faint coverage in that area. This station only goes about 8 blocks.
 
IKHNetworks said:
Is anyone else in Madison Wisconsin? I would love to know if anyone else lives by S Park St in Madison.

I just noticed 101.9 FM is broadcasting audio from WSJY 107.3 FM - I can't find any details on FCCData.org about this.

FCCData doesn't show any LPFM on 101.9 FM in this area or any station with faint coverage in that area. This station only goes about 8 blocks.
Click to expand...
No licensed station is only going to cover eight blocks. It is likely a part 15 signal.

And LPFM's cannot rebroadcast a commercial signal. There are two translators that come up including one licensed to Madison on the west side owned by Calvary Radio Network that rebroadcast their 90.3 WJWD Marshall.
 
lanceventa said:
No licensed station is only going to cover eight blocks. It is likely a part 15 signal.

And LPFM's cannot rebroadcast a commercial signal. There are two translators that come up including one licensed to Madison on the west side owned by Calvary Radio Network that rebroadcast their 90.3 WJWD Marshall.
Click to expand...
Wow I didn't expect Part 15 signals to go 8 blocks. Cool - glad to see that other folks are still doing Part 15, I thought I was the only one doing Part 15 (Talking House) and (Cablecast at 87.7 FM)
 
IKHNetworks said:
Wow I didn't expect Part 15 signals to go 8 blocks.
Click to expand...
It probably shouldn't under a strict interpretation of the rules. Most sources suggest that a Part 15 FM transmitter should provide a listenable signal for 100 to 200 ft, which would be about one block. However, it isn't tremendously hard to buy an FM transmitter online that may be marketed as "Part 15" but is not actually Part 15 compliant.
 
PTBoardOp93 said:
It probably shouldn't under a strict interpretation of the rules. Most sources suggest that a Part 15 FM transmitter should provide a listenable signal for 100 to 200 ft, which would be about one block.
Click to expand...
250 uV/m at 3 meters calculates to 11 nanowatts output into a quarter wave vertical. In reality, a range of 100-200 feet is a bit more power than that. But as long as no licensed stations are being interfered with, and the frequency is clear, I doubt the FCC will care as long as you're close to that power level. Just don't broadcast to anyone but your own household, or the Music Mafia may want to talk to you about licensing, record keeping, and (especially) payments. In other words, don't let anybody outside your family know you're there.
PTBoardOp93 said:
However, it isn't tremendously hard to buy an FM transmitter online that may be marketed as "Part 15" but is not actually Part 15 compliant.
Click to expand...
Amazon is notorious for this. I own one, but my setup is fully inside my house, which is completely shielded by lath and stucco, making the house itself a 40 dB attenuator. By shortening the antenna (it hasn't blown out the final transistor yet due to the mismatch), I can restrict the signal to that 200 foot range.
 
KeithE4 said:
250 uV/m at 3 meters calculates to 11 nanowatts output into a quarter wave vertical. In reality, a range of 100-200 feet is a bit more power than that. But as long as no licensed stations are being interfered with, and the frequency is clear, I doubt the FCC will care as long as you're close to that power level. Just don't broadcast to anyone but your own household, or the Music Mafia may want to talk to you about licensing, record keeping, and (especially) payments. In other words, don't let anybody outside your family know you're there.

Amazon is notorious for this. I own one, but my setup is fully inside my house, which is completely shielded by lath and stucco, making the house itself a 40 dB attenuator. By shortening the antenna (it hasn't blown out the final transistor yet due to the mismatch), I can restrict the signal to that 200 foot range.
Click to expand...

Those transmitters from china on amazon are spectrally very dirty and often dont make stated power
 
SomeRadioGuy said:
Those transmitters from china on amazon are spectrally very dirty and often dont make stated power
Click to expand...
Yes, they can be. But I've checked mine with an SDR dongle acting as a bare-bones spectrum analyzer, and the signal is clean other than a small 2nd harmonic about 30 dB down, which is in the middle of Channel 8. Not an issue since our local PBS station overrides it. Nothing that could mess up the aircraft band, which is the most important thing when one lives near an airport.

The cheap transmitters built into cigarette lighter connectors for mobile use are another story. I bought one a couple years ago, and it was so noisy that it wiped out everything else on the FM band in my van. Needless to say, I sent it back to Amazon with some nasty comments.
 


Back
Top Bottom