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New Legal Part 15 AM Transmitter Evaluation To Begin

Radio Brandy will begin evaluation and testing of the new Procaster AM transmitter next week, The first thing I can tell you is that in now way is it a copy of the Rangemaster, the only thing in common is they are both FCC certified.
I will try and post an early review next week on the New Procaster AM transmitter, EDM hands down has the best Low Power FM transmitter on the market today, more test have proven its even better than I first thought. The question is: will the Procaster overtake Rangemaster as the new AM standard?

Steve
www.radiobrandy.net
 
I'll be interested in reading your review, but I have to say from an engineering prospective the Rangemaster is quite a nice piece of gear. I'm testing the unit that will serve as the AM transmitter for a high school AM/FM & webstream and it sounds damn good. I'm testing the audio with both an Aphex Compellor/Inovonics 222 combo and with a barefoot Omnia AM and it sounds as good as some of the better built commercial AM rigs I've engineered for terrestrial broadcast.

Personally, I wasn't thrilled about the antenna design on the Procaster, but of course this is just by looking at it and no hand-on evaluation. I'd would have loved to put a Procaster and Rangemaster in my test field and do a side-by-side with my field intensity meter and my group of AM audio critics.
 
I've been to the Procaster website, and it looks like it combines (what I consider to be) the two key elements of both the SSTran AND the Range Master.

In my opinion:

What made the SSTran so desirable to me was the onboard processing, so you don't need to sink thousands into an audio chain (Inovonics, Orban, etc.). The downside, however, is that if you want a neighborhood-wide, Part 15 signal out of it, you have to get one of Carl's antenna/ground systems (or build it yourself) and have 400 square feet of space in your backyard, dig a hole to anchor the antenna assembly, and groove up the ground around it for the copper radials (20 of them in all at 10 feet a piece, which, without the proper toolry, can be VERY time-consuming and laborious)...which also means, obviously, that it's on the ground.

The key element of the Range Master is that it's self contained...everything in the fiberglass box, with the antenna ON the box so you can mount it anywhere (like 30 feet up a tower). However, the Range Master is ONLY a transmitter...no processing, so if you're one of those (like me) who don't have said thousands to drop on fancy Orbanery, Inovonics, or Aphex (like Bill mentioned) processing, you have to settle for unprocessed audio, which, after having processed, is unacceptable to me as I'm an audiophile, and therefore, hold VERY high sound quality standards for myself. That's why, even though I have BOTH transmitters (SSTran on the ground, Range Master 30 feet up my tower), I'm still on my SSTran. I don't have the buckage for the audio chain I need for my Range Master.

Sounds like you can get both with this Procaster. Only thing is, last time I was at the site, there was no price mentioned. Hafta go back there and see if there now is.

I'm almost wishing I knew about this Procaster before I spent the thousand on the two AM transmitters I now have.
 
XRQKFM said:
The question is: will the Procaster overtake Rangemaster as the new AM standard?

Steve
www.radiobrandy.net

Range Master the AM standard? Call me dumb, and say I need to get out more, but I wasn't aware of this. Everyone here seems to swear by them, but I didn't realize it was the "AM standard." What made it such?

XRQKFM said:
EDM hands down has the best Low Power FM transmitter on the market today, more test have proven its even better than I first thought.

Steve
www.radiobrandy.net

EDM's FM transmitter is better than Ramsey's? Ramsey's FMs are far better than their AM transmitters, that's for sure. I got a Ramsey AM a while back, and the thing was next door to junk. Was not at all impressed with it. Makes a great dust collector, though. In fact, the SSTran blew it completely outta the water. No comparison.
 
rickradio said:
I've been to the Procaster website, and it looks like it combines (what I consider to be) the two key elements of both the SSTran AND the Range Master.

In my opinion:

What made the SSTran so desirable to me was the onboard processing, so you don't need to sink thousands into an audio chain (Inovonics, Orban, etc.). The downside, however, is that if you want a neighborhood-wide, Part 15 signal out of it, you have to get one of Carl's antenna/ground systems (or build it yourself) and have 400 square feet of space in your backyard, dig a hole to anchor the antenna assembly, and groove up the ground around it for the copper radials (20 of them in all at 10 feet a piece, which, without the proper toolry, can be VERY time-consuming and laborious)...which also means, obviously, that it's on the ground.

The key element of the Range Master is that it's self contained...everything in the fiberglass box, with the antenna ON the box so you can mount it anywhere (like 30 feet up a tower). However, the Range Master is ONLY a transmitter...no processing, so if you're one of those (like me) who don't have said thousands to drop on fancy Orbanery, Inovonics, or Aphex (like Bill mentioned) processing, you have to settle for unprocessed audio, which, after having processed, is unacceptable to me as I'm an audiophile, and therefore, hold VERY high sound quality standards for myself. That's why, even though I have BOTH transmitters (SSTran on the ground, Range Master 30 feet up my tower), I'm still on my SSTran. I don't have the buckage for the audio chain I need for my Range Master.

Sounds like you can get both with this Procaster. Only thing is, last time I was at the site, there was no price mentioned. Hafta go back there and see if there now is.

I'm almost wishing I knew about this Procaster before I spent the thousand on the two AM transmitters I now have.
rickradio, you said you were using your SSTran on the ground, how much coverage are you getting from it? Is it elevated at
all and what kind of ground are you doing? I am looking at going with the SSTran because of the price, I have to admit I've been looking
at the Procaster and it looks good. If I told you what I was using now you would probably get a good laugh.
 
rickradio said:
What made the SSTran so desirable to me was the onboard processing, so you don't need to sink thousands into an audio chain (Inovonics, Orban, etc.). The downside, however, is that if you want a neighborhood-wide, Part 15 signal out of it, you have to get one of Carl's antenna/ground systems (or build it yourself) and have 400 square feet of space in your backyard, dig a hole to anchor the antenna assembly, and groove up the ground around it for the copper radials (20 of them in all at 10 feet a piece, which, without the proper toolry, can be VERY time-consuming and laborious)...which also means, obviously, that it's on the ground.

I don't know much about the antenna & ground system you're referencing, but unless it closely resembles the "stock" antenna said transmitter comes with I would be an FCC agent would be ready to pull the rug out from under you. While property grounding and radials can get messy, there's not really much of a choice of antennas if you want to remain "by the book" Part 15 compliant.

rickradio said:
The key element of the Range Master is that it's self contained...everything in the fiberglass box, with the antenna ON the box so you can mount it anywhere (like 30 feet up a tower). However, the Range Master is ONLY a transmitter...no processing, so if you're one of those (like me) who don't have said thousands to drop on fancy Orbanery, Inovonics, or Aphex (like Bill mentioned) processing, you have to settle for unprocessed audio, which, after having processed, is unacceptable to me as I'm an audiophile, and therefore, hold VERY high sound quality standards for myself. That's why, even though I have BOTH transmitters (SSTran on the ground, Range Master 30 feet up my tower), I'm still on my SSTran. I don't have the buckage for the audio chain I need for my Range Master.

There are several trains of thought here. You have to think that if there's onboard audio processing there may be a trade-off in other areas of the transmitter. Granted, many folks don't have the buck$ for heavy duty audio processing, I picked up a bunch of mine on ebay and some that I got for the school station was donated to their cause. Perhaps it's my background in broadcast engineering on why I lean toward external processing, but a unit with onboard processing would be good for the budget broadcaster. Also, a friend of mine runs a little Part 15 with nothing more than one of those cheapy four channel compressors that go for around $200 - pretty cheap and it doesn't sound bad at all.

rickradio said:
Sounds like you can get both with this Procaster. Only thing is, last time I was at the site, there was no price mentioned. Hafta go back there and see if there now is. I'm almost wishing I knew about this Procaster before I spent the thousand on the two AM transmitters I now have.

I think the Procaster is about $100 less than the Rangemaster's "adjusted" price on the web site (I know it was higher when I placed the order for the school). Like anything else, you can always liquidate your old stuff on ebay and buy a new one if you don't end up losing too much in the end. I'm not saying it's a perfect plan, just something to consider.
 
Range Master the AM standard? Call me dumb, and say I need to get out more, but I wasn't aware of this. Everyone here seems to swear by them, but I didn't realize it was the "AM standard." What made it such?
Standard; means a refence point to judge others by, since the Rangemaster was the only FCC certified part 15 AM transmitter, that would make it the reference point.

EDM's FM transmitter is better than Ramsey's?
A Rolls Royce vs. a Yugo. Its that simple.

The Procaster price is $700
The Sstran plus Carl's antenna comes really close to the street legal Procaster in price. without the hassel of a kit.

I can also tell you the people behind the new Procaster would have never turned in LP Ryan, as the boss put it: Nevermind its a family website!
 
XRQKFM said:
The Procaster price is $700

With that, it seems the Rangemaster and Procaster are currently at the same price point.

I think until the Procaster gets out into people's hands most people familiar with the technology are still going to lean toward the Rangemaster (if they have the budget for a "serious" Part 15 certified box). Once the Procaster get around and assuming it's performance is equal or exceeds the Rangemaster then they will start to see more sales. It's like any new kid on the block.
 
The USI Trans AM100 transmitter was FCC certified decades ahead of the Rangemaster.
 
Ultra Sensors Inc.

http://www.fcc.gov/Bureaus/Engineering_Technology/Databases/eadf.dat/eadprog/Certification-1996.db

The FCC database of type acceptance (and other equipment authorization) records contains the following entries for Part 15 AM transmitter manufacturers:

KNE393 (granted 5/3/93)
Infotech Systems
6513 Churchill Way, Dallas, TX 75230
range: 0.53-1.62 MHz
description: "advertising transmitter"

DPD624TA100 (granted 1/24/96)
Ultra Sensors, Inc.
24136 East Cedar Lake Drive, New Prague, MN 56071
range: 0.51-1.705 MHz
description: "AM transmitter"

DLB5LTT98 (granted 9/4/97)
Realty Electronics
195 N. Main St., Fon du Lac, WI 54935
range: 0.53-1.7 MHz
description: "real estate transmitter"
 
rickradio, you said you were using your SSTran on the ground, how much coverage are you getting from it? Is it elevated at all and what kind of ground are you doing? I am looking at going with the SSTran because of the price, I have to admit I've been looking at the Procaster and it looks good. If I told you what I was using now you would probably get a good laugh.

Actually, TR, I remember you...you're using that Wild Planet Radio DJ you picked up on eBay...I remember the thread you started and I replied with everything depending on how serious you should be about Part 15 broadcasting before you started because of the dough one has to drop in order to get optimal long-term results, but noting that your desire to stream it online was a good sign. How's that workin' out for ya? Also, I wouldn't laugh because I'm all too familiar with what it's like to want to do something but not having the money with which to do it. Now, about your questions...

Coverage varies, actually. There are all kinds of variables involved. First, there's a 10kw-day, 1kw-night satellite dreck-fed station up in Redding (about 250-300 miles away) on 1670, and when that signal comes in down here, I get about a 2-to-3-house radius of the transmitter. But that's only close to sunrise and sunset. Then there's sometimes a CalTrans-operated TIS on 1670, but that's not too often, thankfully. When there's no interference, I actually get about 2-3 blocks of strong, listenable coverage in every direction, fading ever-so-gradually from there. That may sound like a joke to some here, but like I said, the transmitter's on the ground (not elevated, TR), so some shielding may be in play from all the houses surrounding the transmitter. But I love the audio quality of the SSTran.

And to answer the question that both you and Bill asked, the antenna/ground system I have is the one that Phil advertises on the SSTran website, which, as he also says, you can either build yourself, or hire Carl to build (which I did). And Carl is very careful about legality and making sure that they (the antennae he builds) comply with Part 15 specs. He doesn't want trouble any more than the rest of us do. In fact, he and I had a pretty lengthy email dialogue about it after I got it and installed it.

I, too, am looking at the Procaster for the reasons I posted earlier in this thread: the SSTran and the Rangemaster each have something that the other doesn't, making you have to choose between the two, depending on what's important to you. But the Procaster apparently has all three: onboard processing, self-contained mobility, and FCC certification. Sounds like this Procaster has everything going for it. Ideally, what I think I wanna do is try one of these and see how it sounds when I can scrape together $700 (I'm starting to feel like a transmitter collector!), and if I'm sold on it, keep the others as backups.

since the Rangemaster was the only FCC certified part 15 AM transmitter, that would make it the reference point.
Oh, ok...thanks.

Quote
EDM's FM transmitter is better than Ramsey's?
A Rolls Royce vs. a Yugo. Its that simple.
Interesting! Methinks I'll check this out! Thanks!

The Procaster price is $700
The Sstran plus Carl's antenna comes really close to the street legal Procaster in price. without the hassel of a kit.

Actually, unless the price of either or both has gone up, an SSTran with Carl's antenna would be around $450.
 
Coverage varies, actually. There are all kinds of variables involved. First, there's a 10kw-day, 1kw-night satellite dreck-fed station up in Redding (about 250-300 miles away) on 1670, and when that signal comes in down here, I get about a 2-to-3-house radius of the transmitter.
We have problems with that station too, I don't know how far south you are, but 1500 AM is very quite here even into the late evening. For the most part, Part 15 AM is mainly a daytime operation, with streaming making up for the nighttime loss, Clear Channel is shutting down a bunch of AM's in the east and elseware, perhaps that will clean up the dial in some areas.

Steve
www.xrqk.com
 
XRQKFM said:
Clear Channel is shutting down a bunch of AM's in the east and elseware, perhaps that will clean up the dial in some areas.

They took two dog AMs dark in southern Minnesota. Apparently, from comments from local broadcasters neither has been profitable ever.

Two is hardly "a bunch" and Minnesota is not in the East.
 
We have problems with that station too, I don't know how far south you are, but 1500 AM is very quite here even into the late evening. For the most part, Part 15 AM is mainly a daytime operation, with streaming making up for the nighttime loss

No kidding...that's interesting. 1670 in Redding causes probs for you, too, huh? It really pisses me off that it seems you can do anything you want if you have deep enough pockets. As I'm sure you know, Steve, 1670's just a satellite relay box for Bristol, CT. 1500 here is right in between a Disneyland satellite relay box at 1470 and KFBK. But AM at night is a joke unless you're a zillion-watt blowtorch with a godzilla signal that makes it to Jupiter's third moon. But I keep my transmitter on anyway, even though in all likelihood, only the next door neighbor can hear it. But I do want to start streaming my AM, too.

Are you near San Diego, or somewhere along the Mexican border? I guess 1500 is dark in LA? When it was KBLA and KBBQ, et al., the signal barely made it across Burbank from all accounts I've heard and read.

Are you in the Southland somewhere, David? For some reason, I had the impression you're in LA.

perhaps that will clean up the dial in some areas.

Yeah, the AM dial could use some serious cleaning up, to be sure.
 
William C. Walker said:
David. Which two AM station's in southern MN went dark?

KNFX and KMFX in Wabasha and Austin. One is a daytimer, a kw on 1190, the other is 5kw day and 500 night on 970. In other words, both are virtual daytimers, and in winter months at that latitude, there are only about 8 hours of daylight. In other words, dogs in over-radioed areas.

The 1190 signal puts a usable signal over less than 12,000 persons. Within a 50 mile radius, there are about 65 signals, more than half putting usable signals over Wabasha.

1190 is a poster child for a station that should never have been granted.
 
rickradio said:
1670 in Redding causes probs for you, too, huh? It really pisses me off that it seems you can do anything you want if you have deep enough pockets.

The night "problem" with 1670 is that it is nearly a shortwave frequency, and can easily be heard for several thousand miles, even at 1 kw. Before the US put stations on the X Bands, I could hear Argentine X-banders regularly from my previous DX post in San Juan, PR.

As to KNRO, keep in mind that it is owned by Mapleton, a decent smaller broadcaster who has, to their credit, bought and left alone KPIG, a unique format, and even kept classics in Monterey-Salinas. The whole company, 40 stations, bills (gross revenue) less than any single one of the top 25 stations in LA so you can see the perspective... they are smaller station operators and they seem to be pretty good ones, too.

As I'm sure you know, Steve, 1670's just a satellite relay box for Bristol, CT.

Do you really think that Redding, where 14 local stations split only $6 million in revenue, could support a live and local sports station? At least Mapleton is provinding a good national service on a signal and in a market where most would sell block religious shows and the like.

1500 here is right in between a Disneyland satellite relay box at 1470 and KFBK.

My counterpoint on Disney is that, when nobody else is programming for kids, Disney is. They obviously make no money on it, but get a certain marketing value. Good for them for providing the service.

Are you near San Diego, or somewhere along the Mexican border?

I have several locations, one in LA, one in the desert, and one in the AZ mountains.

I guess 1500 is dark in LA?

It's been silent for decades. There are multiple applications for it, from new COLs, but NIMBY has kept it off.

When it was KBLA and KBBQ, et al., the signal barely made it across Burbank from all accounts I've heard and read.

At night it was strictly for the San Fernando Valley. Daytime, it covered down as far as downtown, across to Santa Monica. One of the PDs I work with did mid-days when it was Spanish, and she noted lots of calls from the McArthur Park and East LA areas. Studios were on Riverside in Toluca Lake, a really nice neighborhood.

Are you in the Southland somewhere, David? For some reason, I had the impression you're in LA.

I can see the old KROQ AM site from the road as I leave home, and the Flint Peak towers are pretty near spittin' distance.

Yeah, the AM dial could use some serious cleaning up, to be sure.

Hindsight is pretty good, and we are all skilled Monday Morning Quarterbacks. ;D There was one thing the FCC could never anticipate when most of the choice regional stations were licensed, and that is the urban sprawl of US cities or metro areas after W.W. II. Nearly all the cities grew beyond the day and night coverage of the local stations.

Of course, there was little ambient noise then, so they thought 50 kw could cover a whole state by day, and 5 kw a big city area. In fact, 50 kw today is challenged to cover many metros, and many 5kw stations are not viable for even day coverage. And forget the daytimers... when FM became viable, the daytimers and low power stations began a hasty decline.

There are far to many stations, but no owner thinks they can't make it work, and there is nearly always another person to buy when they fail... and they do.
 
The night "problem" with 1670 is that it is nearly a shortwave frequency, and can easily be heard for several thousand miles, even at 1 kw.

Wish my AM could easily be heard for several thousand miles, even at 100 mw! LOL!! :D

Do you really think that Redding, where 14 local stations split only $6 million in revenue, could support a live and local sports station?

Well, David, that wasn't my point, but maybe Redding could, if it was done right. Maybe Redding shouldn't have as many stations as it has if all there is is table scraps to go around. And if the pickens are so slim financially up there, why did they upgrade the power? Mapleton apparently has the money to run a 10,000-watt transmitter. Seems to me a 1 or 5kw would be far cheaper. Maybe power is more important than programming.

That KNRO is a "satellite drop box" (a term I got from you), was more or less just a sidenote. Sure, I'm a localist, but what did bother me (and my actual point) is that somebody apparently wasn't satisfied with the former KSXO at 600 for some reason (a decent signal that blanketed the North Valley with no problem), so they moved it up to 1670 just so that they could get the power increase to 10kw. I don't believe they needed to do this and wish they hadn't. But then, if not them, the cynic in me says that someone else would've.

Are you near San Diego, or somewhere along the Mexican border?

I have several locations, one in LA, one in the desert, and one in the AZ mountains.

Actually, David, this question was for Steve, but thanks for answering! ;D The AZ mts sound like pretty country.

I guess 1500 is dark in LA?

It's been silent for decades. There are multiple applications for it, from new COLs, but NIMBY has kept it off.

OK, I give...what's NIMBY?

Hindsight is pretty good, and we are all skilled Monday Morning Quarterbacks. ;D There was one thing the FCC could never anticipate when most of the choice regional stations were licensed, and that is the urban sprawl of US cities or metro areas after W.W. II. Nearly all the cities grew beyond the day and night coverage of the local stations.

Yeah, no argument there. No one really saw the rise of suburbia. On the 1240KROY.com website, one of the jocks was quoted as saying that even 250 watts barely made it across Sacramento at night.

Of course, there was little ambient noise then, so they thought 50 kw could cover a whole state by day

Maybe back east, where states are a lot smaller? I could see Delaware, Rhode Island, Connecticut with 50kw stations that would cover the whole state, but out west, the states out here are a lot bigger...there's no way one 50k station could cover a state during the day. All this due to ambient noise?

And forget the daytimers... when FM became viable, the daytimers and low power stations began a hasty decline.

Ughhh...don't get me started on daytimers...I worked at one. I wouldn't trade the experience, though. However, daytime-only stations do seem anachronistic in this day and age.
 
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