timinbovey

The manual for the Orion-5000 transmitter says it’s FIVE WATTS output with a range of 1-5 miles.  Not currently available on their site, but the manual is online:

https://www.manualslib.com/manual/620688/Mobileblackbox-Orion-5000.html?page=2#manual

Every transmitter on their website is illegal to sell in the USA.

My questions are: Why wasn’t…[Read more]

I still have mine! Still works fine.  i think I wrote about if here a few years ago.

I love this guy’s videos!

And there’s an outfit selling reproductions of this transmitter kit on eBay.  They’re $119 + shipping.

Might be fun to put another one together 50 years after I built my first one!

TIB

Again, I personally don’t want to get into the legalities of using these type of units.  But apparently there have been a lot of changes to Part 15 in respect to the use of TV band whitespace.  Info at:

https://www.fcc.gov/wireless/bureau-divisions/mobility-division/wireless-microphones

Once you get there be sure to read the link for FCC 10-99 u…[Read more]

Just heard back from one of the sellers of a Rolls HR70.  He reports that it has no FCC certification numbers, no required FCC compliance sticker or label,  and near as he can tell has no connection with the FCC in any way.

I suspected as much as neither the FCC nor Part 15 was mentioned anywhere in it’s advertising or the manual.

Conclusion: N…[Read more]

Well, I certainly doubt the use of these wireless headphones, as they come from the store is illegal or “pirate”.  The only possible discussion would be if “broadcasting” with them is outside of the realm of their legal use. In which case we need a legal definition of broadcasting.

Now, I don’t know where you’re finding the review of the guy who…[Read more]

I believe “Mr. Wonderful” is right that these are not applicable for 15.239 use.  However, they ARE available for use under 15.236. This is clearly spelled out in the FCC’s  “Wireless Microphones Rules Update” of  11/1/2017.

It states 76 – 88 mHz can operate under 15.236, unlicensed, with a maximum power of 50 mW EIRP.  And also operate under Par…[Read more]

If you read the full report you will see it is ALSO compliant for 15.236 and in fact has a FCC ID issued for part 15 certification.

I was a bit concerned about a couple other details — the rule states:

“(b)Operation under this section is limited to wireless microphones as defined in this section.”

And the definition in this section…[Read more]

Well, that’s just one of many radio options. I bought mine a couple years ago and they were less expensive.

But as was mentioned, there are thousands of radios with TV audio band in them that would work quite well.  I have several multi band portable radios from the 70’s and 80’s with great sound that would work.

Still easier to find a suitable…[Read more]

I already posted this string of random comments in the FB Part 15 group, but for others:

Well, there are several comments I have here. First of all which name/model headphones? There are many “ONN Wireless Headphones”. Second of all, what did he have to green light? Thousands and thousands of people have purchased these and used them to transmit…[Read more]

I’m also amused that this is a “digital transmitter”. It does not accept any digital form of audio, it has analog inputs only, and it does not transmit any digital data, as well.  No digital audio, not even RDS.  It’s “digital” in the fact that the frequency used is read out digitally.  LOL.

TIB

Yeah, there’s ZERO chance the Rolls HR70 is even legal for sale in the USA. It doesn’t seem to be certified, at least it’s not mentioned in any listings for it and a search of the FCC database has no mention of it. Most legit Part 15 certifications are readily searchable at the FCC.

Not surprising as it has several readily apparent issues that…[Read more]

I’d be leery of the Broadcastvision models.

While the last one I tested was about 2 1/2 years ago, it was WAY over the legal limit.  See my test report at:

http://www.ironrangecountry.com/broadcastvisiontest.pdf

TIB