Post by part15engineer on Apr 5, 2020 15:31:40 GMT
would anyone be interested in a talking sign part 15 transmitter? it covers from 1400-1690 KHz. i do not have external ATU and it wasn't part 15 certified with an external ATU anyway. i'm asking $150.00 shipped ConUS. this includes paypal fees, boxing shipping and insurance.
it will come with a PS if i can find one in my stash and i do not have a 3m wire for it.
I did an image search at Startpage for 'Talking Sign transmitter' but just get pictures of the Talking House. I've heard a little bit about the Talking Sign on these groups, is it the predecessor to the Talking House? Now that I think about it, it might be a pre-Procaster? Does it have the ATU (antenna tuning unit circuit) built internally?
Great that the transmitters can go to some stations out there.
For others who may be looking for a transmitter to build your radio station, look for used Talking House transmitters on auction sites for around $50 or lower for just the base unit and power supply, without the signage and accessories. If you want an off the shelf version of the Talking House, look up The Radio Source and Bill Baker.
I am disappointed in a couple of the sellers and dealers in Part-15 type-accepted transmitting units, mis-implications that only type accepted transmitters are lawful for use. Two articles on Radio World took a heavy handed approach to this, and it's 'fake news' that's just the kind of slanted politics, the kind of FUD we don't need in Part-15 promotion.
Seems like a time when more Part-15 radio would be needed, I'm doing more with my stations now, great to have such a hobby at home! I'm 'cashing in' on my hobbies lately, projects I've built up over a span of time and wanted to get to them someday. I feel like keeping my funds close and not buying non-essentials, and putting what I already have to work, and it feels good.
I also bought a talking house version 5 for $129 on Amazon Information Station Specialist as the seller. and hopefully tomorrow we'll have a friend that will help me out with it.
Now here's the bit of bad news that's going around I was on the part 15 AM and FM hobby broadcast forum and now RECNet's Michelle Bradley is trying to claim that any homemade antenna for part 15 AM transmitters is illegal if you use it on a certified part 15 AM transmitter. Thank God somebody on that forum had the guts to call her out on that one. For someone that seems to be all for hobby broadcasting at every turn it seems like she's trying to make things harder for hobby broadcasters. it reminds me of some of those BitTorrent sites which had so many ads and viruses in them which makes them practically useless unless you have something to block the BS with.
Everyone knows from day one when we were kids it was legal to make your own antenna for the AM transmitters so long as you follow part 15 section 219. People like that are causing too much problems in the community and this is what we really do not need.
then there's that 200-foot rule thing that misinformed people keeps on coming up with. I talked to an FCC agent about FM and AM and contrary to popular belief I was told that a certified FM transmitter such as a Decade will go 1700 ft before fade to black. that's quite a bit and you can get listeners but that's on a good Radio too. On AM radio broadcasting it's double that. But somebody seems to think that there's a distance limit on a.m. and I'm here to say that is total hogwash.
I could write a blog about this whole thing it depends on the soil conductivity plus the radio being used as the receiver which as we all know most of the radios sold in department stores such as Walmart or Dollar general or even a few of them at Best buy are less than worthy of being called a good AM radio receiver. Plus it's the environment that you're in and rather or not you take a real effort in your setup process meaning keeping the antenna away from metal and other objects that will obstruct your signal.
I have actually done some experiments with the talking house version 5 and I found that using zero ground on the third prong actually gave me greater range. It went from a 77 to an 80 to 85 on my meter and when I did a outside walk around range check I also noticed a difference. I do believe that Stations made mention of this years ago when talking about his antenna in which he built which some people would coined the phrase magic antenna but not in a good way.
I am actually seeing some of this for myself during my own experimentation and found it to be quite interesting because I like so many people thought that you had to be grounded in order to have any sort of range on the AM broadcast band. so if you don't get range one way try it the other way meaning if grounded try without the ground if without the ground try with the ground and see what you get and which one works better for your area.
Thanks Legacy, you have some good ideas. There's tons of misinformation out there, and I think that's because some people and companies want it their own way, to alter opinions toward their politics or sell more of their own companies' products. The technology is arcane and mysterious to many who want to start stations, especially newly interested people in this time of COVID-19, so they're bamboozled by the claims. Prominent personalities speak the same thing repeatedly across several sites, and echo each other, so it seems like legit info.
If you can tell me, where is this forum that Michelle Bradley posted to? It sounds like an interesting discussion. Isn't RECnet more of an FM advocate, and do you think she has lots of experience with Part-15 AM?
It's good to try different grounding methods on your transmitter. Some grounds are higher loss and will use up more of the signal before it gets broadcast.
Glad that you got the new Talking House and Broadcast Vision transmitters! I always wonder about the equipment sold on the group, who gets it and how do they like it, but most don't talk about their purchase it seems.
I am very lucky that my floors are not carpeted. That sort of helps protect the BroadcastVision from that. from that.
I had to move my frequency from 100.1 to 103.1 because of the temperature inversions pretty much messing up my signal. But part of the way to get good range is being able to find a blank frequency where the big boys don't squash you and you don't squash anybody else.
I have more things to say I will do that on another thread instead of hijacking this one.