- October 29, 2018 at 10:38 am #107044
I recently moved into a concrete & steel apartment tower, and located my transmitter in a room that I use as my studio/office. However, its location is not ideal, as it gives a clear, line of sight view in a direction that I don’t care about as much as others.
So I moved my transmitter to another room, facing south, and overlooking my primary coverage area, which includes the Pitt Meadows municipal offices and the recreation center. It was impractical to run an audio cable across the length of the apartment, so I used WiFi as a STL. I set up a stream within my (at least now) private network, capture that stream with an Internet Radio, and then output the audio to the transmitter.
It’s working great, and gives me the flexibility to change the stream as I deem fit. For example, I can change the now mp3 stream to AAC or anything else, as long as the capture device at the other end can handle it.
I know others use Bluetooth for this purpose, but there were several disadvantages to this method, at least in my situation:
- The required length and obstructions made a solid bluetooth signal iffy
- Bluetooth security is not as great as WiFi, particularly in an apartment setting
- I’ve tried Bluetooth in the past, and had issues with the audio volume (and no means to increase it).
So far, I’ve had no issues, and I hear no difference in the quality of the FM signal from a straight audio cable connection (mind you, I’m running a high bitrate mp3 stream).
- October 29, 2018 at 10:51 am #107047
Wi Fi Casting
This is a very interesting achievement, Artisan, and sparks the imagination…
Can your Wi Fi radio transmission be opened up for direct listening by other Wi Fi users within range?
Are we on the brink of a new age of part 15 radio on the Wi Fi Band?
- November 20, 2018 at 6:02 pm #107380
I’m the chief engineer at the local Community FM station and believe it or not that’s what we use to get the signal to our transmitting facilities 6 miles away. Not too dependable but its all they can afford at this time.
- November 20, 2018 at 8:55 pm #107383
With the right equipment, and more importantly, the right antennas (highly directional), and the right location, long distance point to point Part 15 wifi communication is certainly possible.
With a good point to point backbone, and then some decent access points, you can create a wifi network that will greatly outperform any legal Part 15 FM transmitter.
- October 30, 2018 at 6:42 am #107053
Yeah, I wouldn’t recommend that. Other than in-house listeners, unless you have a wonderfully robust firewall and some heavy-duty password protection, expect someone in your listening area to go back up through your Wi-Fi appliance and turn your station’s computer into a porn server.
My own home Wi-Fi password is 26 characters long — in an easy-to-remember format but not an easy-to-guess one — and by my reckoning, there are 254 million combinations a hacker is welcome to try before he gets old and dies. I urge everyone to do the same.
- October 30, 2018 at 8:57 am #107055
If all you’re doing is giving access to a music stream through your wifi (and that can easily be done through an app without giving out your password), then there shouldn’t be any issue. To be really safe, you could use a separate wifi network for your music stream (and only the music stream), and then you could freely give out the password.
It’s a lot more difficult to hack into a network and other computers from that network than what might be portrayed in the media and elsewhere, particularly if you are security conscious, and keep software and hardware up to date. Most publicized security breaches are from inside information, and/or physical access. It just doesn’t work like the movies.
I’ve often thought of building a radio-like wifi public network. It would be easy to do, even within the confines of Part 15 (you’re allowed up to 1 watt with a 6db antenna), and hardware, including antennas, is readily available and relatively inexpensive. The difficult part is finding locations (with access to power) for the nodes, access points, etc. Certainly, you could build a network that could easily (and solidly) cover a community.
Maybe one day…
- This reply was modified 1 month, 1 week ago by ArtisanRadio.
- November 21, 2018 at 7:00 am #107387
Few years ago I purchased a suit of small devices from MCM Electronics called simply “Wireless Stereo Audio Kit”. The part # is not shown on the box but it wouldn’t matter anyway because the unit was discontinued right after I bought mine.
It is in constant use, consisting of a USB dongle that transmits at 2400MHz – 2483MHz, and a black-box receiver with switching power supply.
It boasts CD quality 16-bit/44.1 kHz stereo, and sounds as good as a plain wire cable.
Up to 150-feet range is claimed, I am using it at 35-feet with never a drop-out.
Using USB Audio Out from the computer I am able to send KDX program audio to the SStran AMT5000 and Wholehouse 2.0 FM Transmitters. located at the rear wall of the building.
Back then I purchased a 2nd one so I could use the receiver of the 2nd unit to reach a second location, but it doesn’t work that way. Each transmitter/receiver is a closed system and two of the units cannot be used in the same place. MCM refunded and allowed a return of that 2nd unit.
On my Wi-Fi dongle, which shows all the Wi-Fi’s in the neighborhood, this MCM unit does not show its presence. Whether it is crowding someone’s spectrum space or perhaps cordless phone I have no way of knowing.
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