@horatio-caineActive 3 weeks, 5 days ago
Yeah the shield isn’t needed. That is the 5th wire. That is used if you have an outdoor install to stop lightning from coming into the house and is just connected at one side.
But it doesn’t stop lightning from going through the transmitter to ground via the antenna.
Part 15 Engineer started the topic Swap: wheatstone tdm G6 Console, Sat Cage, power supply, Set of cables in the forum Classifieds 2 weeks, 2 days ago
Looking to swap one set of wheatstone tdm g6 console, satellite cage, power supply, set of cables with punch blocks, and wiring chart for puch block. This will require a bridge router. I only got one with the system and it is in use in my studio with one of the console sets. Pictured is the one in my studio but they are all the same setup.
i’m looking for someone to help me design and build an am broadcast transmitter.
i have some old HF ham radio stuff as well as discreet components to work with for scrounging parts.
looking for DDS frequency synthesis.
Class D output (tube or solid state finals) adjustable from 0-10 Watt pep 0-2.5 Watt RMS.
Balanced 600 ohm…[Read more]
The automation I use is free version Play It Live. The Sean Cuthbert transmitter is not legal technically at all because it’s a marketed home built kit…..A- not approved and B- an unregistered business. If I was an engineer and designed what Sean Cuthbert does at home and started selling them on Ebay I would be in handcuffs if caught, well that…[Read more]
I have understood that transmitters like that Hurricane from the UK, The Asmax from Greece, the Sean Cuthbert, are OK to use even if they are not certified in the USA as they meet the rules although the certification varifies it meets the rules. A kit can be used also if it wasn’t marketed but the operator is responsible for it being legal.
Well, sounds like 1560 will be good for us especially here in Ontario as it won’t be heard in the day and won’t be booming in at night like it was before even if they come back from what you said. I am on 1630 but keep track of the other spots to go. Don’t want to go higher than 1630 as most analog radios before 1990 will still make it there but…[Read more]
I’m not familiar with what each IC function is, sorry. Probably controllers for certain functions like the display, PLL tuning, antenna tuner, etc as the majority is discrete components and the audio amp is most likely transistors.
That’s what I meant with the computer EQ. In the two computers I use for the broadcast one and other for all other…[Read more]
What’s happening is it’s boosting the bass to much and also affecting the mid to make it “muddy” as you are hearing. You can do two things, with your processing if you have EQ control lessen the bass a bit or with the windows EQ drop out 250Hz a bit by 5 or 6 dB.
Or try a 50nF cap instead of 100nF. As for boosting the bass with an equalizer or…[Read more]
Regarding above post. I had to delete a suggestion of ignoring the FCC with suggesting that they don’t have the resources to care about you and not worry about ground leads and it’s OK.
This being a legal part 15 forum we have to keep the discussion legal. I don’t make the rules but as moderator I wouldn’t be doing my job letting that go. And I…[Read more]
As for Michelle Bradley she should be pushing for expanding the FM band. But the FCC wants to make money by selling or “leasing” those vacated TV spots which includes from 88 down to 76 mHz. Have no idea what Canada is doing with the space.
Phil, Here’s my range in the daytime with a GOOD receiver like a GE super or Sangean PR-d5 or other quality receiver or a car with antenna on bumper(newer cars with computer screen and antenna in back window not as good). Best in late afternoon to sunset. This is from indoors as you see in pics. I am also getting some carrier current as my signal…[Read more]
The Procaster is one of the best! I was using the studio processing but I recently got the Schlockwood AM 200 and using that for processing but using the studio I had to find the balance between the modulation depth and the input signal(the adjustment from the outside of case). The modulation depth also gave it more volume and “punch”…[Read more]
I agree 500mW and a little relaxing of ground leads would be better and not cause any problems. In Canada it’s ISED (formerly Industry Canada), spectrum management that looks after this here. CRTC regulates programing only.
The analog radios will be around forever. Even in 30 years you will still be able to get a 1950s tube radio working fine in…[Read more]
I hope you are right about the reasons you cited as to why digital won’t make it, although a bad economy as the reason is not good either but I see what you are saying.
This digital subject is relevant to us as it’s connected to the survival of our hobby.
I just bought a new Kia Forte as someone smashed into my Chev Cobalt and it was a write off…[Read more]
Mark replied to the topic Not Part 15, but a nice read about High School Radio in the forum General Discussion 2 months, 2 weeks ago
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