• 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

Questions Regarding Setting Up Home-built Part 15 AM Transmitting Antenna

Holy moly…
No kidding!

Hard to believe, that was 70+ years ago
It seemed like, for its problems, it was a simpler time, and one could get away with more fun, but legally iffy stuff without getting in trouble. Unless one was actively causing negative interference with someone else's signal, it seemed like they simply didn't care that much.



c
Folks.. all of the rules regarding what we all know as "Part 15 AM" DO NOT APPLY TO 1710 kHz.
That's good to know. I only experiment on that frequency occasionally to see how far I can reach with my current setup; 1610 kHz is really noisy here because there's a TIS station somewhere nearby that is off-frequency and operating somewhere around 1609 kHz. The result is that there is a low rumble that basically jams the frequency, so my setup's effective range is reduced to almost nothing.

Unfortunately, the band here is so congested that there's basically nowhere else to go except 1710 (1700, the highest possible fully legal frequency, is OK in the daytime, but skywaves from XEPE come in at night and clobber everything else).

Incidentally, there is a signal on 1710 around here. It's a TIS-like station being broadcast from Travis AFB in Fairfield, which I can hear clearly from more than 30 miles away. That shouldn't be legal, yet the AFB is doing it? Are they allowed an exception because they operate as part of the federal gov't and supersede the FCC somehow?

Stick with a Chez Procaster or a Hamilton Rangemaster using the included antenna and the FCC certification number and stay in band.
I think this is what I will do for maximum legality. I like the novelty of broadcasting in C-QUAM Stereo, but I'd rather stick to mono (unless it's possible to easily and legally modify either of these to broadcast C-QUAM) than risk being fined, imprisoned or both.

That said, if anyone knows where I can find either of these used for an affordable price, let me know (if it's not against forum rules, that is), as I'm finding new prices somewhat difficult to afford.

c
 
As far as I know this is the only company that makes a C-QuAM transmitter that is Part 15 compliant. However, it should be noted that the transmitter has never been certified by the FCC. ASMAX2
 
As far as I know this is the only company that makes a C-QuAM transmitter that is Part 15 compliant. However, it should be noted that the transmitter has never been certified by the FCC. ASMAX2
I have one of these! However, I have to probably get another one, as I accidentally got the EU-spec version, which produces 600mW, 500 too many for Part 15 compliance (I try to keep it down to 100-ish mW, but since all I have for a power readout is a bar, I can only guess, hence the '-ish').

They're kind of expensive, though, but I suppose I could sell the one I have to someone in Europe? (can't legally do that here, I don't think).

c
 
I don't know where else to post this, so I thought I'd try here, since it's related.

I want to ask some opinions about how my processing sounds.

Since I don't want to stream it for obvious reasons, can I post an aircheck of it to Dropbox or something?

c
 
Status
This thread has been closed due to inactivity. You can create a new thread to discuss this topic.


Back
Top Bottom