BELKIN TUNECAST 2 MOD PDF

Two different tutorials on modding the Tunecast II transmitter by adding a more effective Antenna. I did the latter of the 2 and it worked well. Me too,.. I can now take a length of RG6 coax and screw it into the unit to get different antenna lengths.

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Two different tutorials on modding the Tunecast II transmitter by adding a more effective Antenna. I did the latter of the 2 and it worked well. Me too,.. I can now take a length of RG6 coax and screw it into the unit to get different antenna lengths.

I live very close a mile to an FCC monitoring station and have to be very careful about sending too strong a signal. I dont want audio to be shut down. I need the signal to max out and diminish at about ft. One thing to note is as follows: A receiver should be connected to a coaxial cable with the same characteristic impedance as the receiver's input impedance.

One cannot just connect ohm coax into a radio's ohm antenna socket and expect optimal performance. To mismatch impedances throws away a large proportion of an already weak signal, as well as providing a conduit for radio interference to enter the receiver. Good tute Greg but I have a silly question I noticed there is a 12v socket on the bottom of the Belkin why not use it with a cheap plug pack? Only has 4 channels but that is fine for my area. You mentioned a balun to the antenna.

Yet the second article connects it directly to a 50 ohm line. I've been working to get as much as possible out of the Tx. And am not sure which approach is better. But I did get a few hundred feet signal, which again is perfect for my setup. Rocket: Originally I wanted to see if I could do it. I also didnt want to have to buy anything else. Well, in theory usb power is 5v, but it is not stable. So no workie. I am going to figure out how to make it work the way I want to, and when I do I can only get 50 feet with either device.

Both mods were easy, they just don't seem to get the range. Any ideas? Same thing happened to me. What is your frequency. What is your antennae length from the solder pad to the end. What are you using for the antennae. What is your power supply. How is your antennae oriented. I did the Belkin mod and easily get two blocks in all directions.

Any What is your antennae length from the solder pad to the end. Either just the wire 20 gauge or an RS 32" antennae What is your power supply. I'm using a Belkin Tunecast II, with the longer antenna mod, and the quality of the audio is terrible. The coverage is not too bad, but its full of static! I'm using 52 inches of wire for the antenna, a single strand of the CAT5 cable.

Powering from an external brick at 12v and my antenna is stapled vertically to the edge of the wood around the garage door, with its peak tip about 6ft off the ground, and my house is elevated slightly, so the tip of the antenna is probably ft above street level give or take The reception is so bad, I'm considering getting a Ramsey or Whole house this year :.

Try using batteries for a test. If it cleans up the static try tapping into your computer power supply for 12v The brick could be introducing the static if it is not adequately filtered. I think The length is I will try all of these suggestions later when I get home Shortening the length of Antenna to around 31 inches I will try batteries instead of the brick, and I'll check the volume from the PC. Can you post some pictures so I fully understand!?

I off to buy an amp right now!!! I shortened the length of cable that didnt seem to do much Now its in front of the house!!! Has anyone ever built that RF amp for the Tunecast? In my area all of the Tunecast frequencies had a station. I selected the weakest one and was able to get about ' before the signal became unacceptable. I'd like to broadcast from within the house to simplify the display setup, so this distance makes the use of this modfied Tunecast marginal.

I happened to have most of these parts on hand so I plopped a breadboard together. I was going to attach a picture, but the new site won't allow it. With this modification I'm now getting an additional ' to the broadcast area for a total of about a ' radius. This will be more than sufficient for my needs as I'm now getting coverage a couple of houses in either direction while broadcasting from within the house.

Not bad considering I'm fighting a station. I'll be doing some further tweaking to see if I can improve the range. Of course, you could get all these from Mouser for less, but then you'd have to pay shipping and wait..

Ok, so I have looked at the mod for bypassing the attenuator and I am confused on how to do this. I looked at the pictures but I can't figure out what I need to do. I have the black Tunecast 2 with the digital station id display. Can anyone help by explaining the best way to bypass the attenuator and if I will see a bigger difference in range vs. I just recently did this with the instructable listed in the first post.

If you solder the wire to the point before the attenuator, it does make a pretty big difference. I am getting at least ft, with thh tunecast in the basement and me outside. If you have more questions after looking at the instructible, let me know. Here is the link that I used when modifying mine. I soldered a thin wire to the "inside" end the one not near the edge of the attenuator rather than shorting it, and it worked for me.

Thank you so much!!! That cleared it all up for me. I have seen several ways and I was just confused. I know what I will be doing tomorrow : Thanks again! Anyone know if, and more importantly how, a tunecast can be modified to be powered by a PC power supply or the ebay power supplies that Kevin had shown on he website?

I have the adapter to power from a car, so I figure it has to be possible. Just don't want to fry it doing something stupid. Not sure if you are set on powering from PC or not, but this is what I bought off ebay. And then I ended up getting a 5W transmitter for a pretty good price, so I won't need this now. I have something similiar myself that I picked up to power an old air pump when I didn't want to turn on the car to get it to run.

I guess my thinking is that I am already going to be running two powers supplys to run 5 v and 12 v to various things grinch, Ren 16, MR16s, etc , just wanted to see if there was a way to avoid having something else plugged into a wall.

The car adapter is just feeding 12v into the tunecast. Not sure if the 12 volt car adapter is regulated inside the actual cigarette lighter plug in or not Might want to check for a 5 volt regulator chip first. As far as I know the tunecast has a regulator in it. So you can hook it up to the 5v or 12v power from the pc. It didn't on mine.

Voltage check when plugged into the car and resistance check both indicated that it was passing straight through. I have always powered mine from the 12v side. Just plug it int the disk drive connector. What did you do with the other end? Been a while since I did this, but I think the thin wire that is attached is the one that is the new antenna. That wire comes out of the hole in the case, and is used to broadcast the signal.

The higher up it is, the better. If you meant the inside end of the attenuator, than I did nothing to that side. The wire before the attenuator, means that nothing is passed thru it.. Does that answer your question? If not, post more and I will try to help.

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Belkin-Tunecast-II-FM-Transmitter-Mod.pdf

License: Attribution Non-commercial Share Alike by-nc-sa. How about a longer audio cable? The finished product! Related Instructables. It is only earlier this year that FM transmitters like these became legal in the UK, ignoring the fact that savvy netizens have already brought theirs from eBay. This modification improves the transmission range and remove the 'feature' of auto-power down when no audio signal is present.

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Belkin Tunecast II FM Transmitter Mod

Belkin is a popular manufacturer of cheap and cheerful computer accessories, having singlehandedly made the USB hub sexy! It is only earlier this year that FM transmitters like these became legal in the UK, ignoring the fact that savvy netizens have already brought theirs from eBay. This modification improves the transmission range and remove the 'feature' of auto-power down when no audio signal is present. It certainly sets you up as resident pirate radio DJ of your block and allows you to jam the loud radio listener on a bus or train!

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