As a licensed FCC Radio Operator (KI5QY), I would like to take this opportunity compliment Keith Hamilton on his transmitter and the support he provides with his products.  I recently purchased the AM1000 complete with the Frequency Agile Module and Tuning Power Module.  My order was processed promptly and delivery was on-time.  Upon inspection, I couldn’t help but to notice the quality in workmanship and protective packaging.  I was especially impressed with the video that accompanied the instruction manual.  After improving my ground system per Keith’s instructions, the transmitter tuned up seamlessly.  The transmitter is mounted on a military composite pop-up mast on my roof with 4 guy wires supporting the mast.  The elevation is approximately 37 feet.  My coverage area is noise quieting at 1 mile and effective range is between 1.5 – 2 miles during daylight hours depending on terrain and atmospheric conditions.  There are also a couple of noticable hot lobes on the southside of my antenna that covers several miles of IH-35 which was unexpected.  I am able to cover my neighborhood target that consists of 3 subdivisions and local business district with ease.  I am currently running the Inovonics 222 AM processor, Berringer Tube Ultra Gain Mic200 microphone preamp, MXL770 Condenser Microphone, ZaraRadio automation and a Behringer Eurorack UB1202 Mixer as well as my own Windows 2003 media server.  Through this combination and some preemphasis yet to be determined, I am on my way to a very professional sounding community station.  I would like to thank Keith for his unselfish support and professionalism.  I can’t say enough about how excited I am to use the RangeMaster and look forward to clustering transmitters in the near term.   
 

Dewberry Jam Community Radio


Hello Everyone:

 

Just wanted to update you about the transmitter we bought from you last year. The transmitter is working beautifully. We run it 24/7 and have not had any problems or frequency deviations since the day we installed it. As a test, we also purchased another transmitter from another company to see it's endurance ability, and needless to say that after 7 months of continual operation, the other transmitter had to be adjusted three times to maintain it's frequency. That transmitter is now in a closet awaiting to be disposed of.

 

As to the station itself, we have come a long way since we first purchased the transmitter. We now carry nationally syndicated programs from Westwood One, X-Zone Radio (Rel-Mar Productions) to name a couple. Add to that, by the enclosed photo, even our humble studio recently received a serious face lift. We also have our own domain, which makes things alot easier as well.

 

Check it out yourself and see the changes that have come about. If we can ever help you out, please do not hessitate. You steered us in the right direction when we bought the transmitter, and we owe you for that.

 

Respectfully;

J S

Owner

KKRP AM 1610


 

See this review by Todd Jenkins


See this review from E.R. in Illinois


We just finished the installation of our transmitter...WOW!!!! We have a 2 mile radius, covers "ourtown" with ease. Glad I decided to purchase the transmitter from you instead of "competition".



You sold me the second we went over-the-air.



Great quality, fantastic sound and excellent range, even when we tuned it to specs.

 

Anyone that doesn't truly consider your transmitter will regret it. Had I bought the other one, I would have been greatly disappointed. I heard too many stories about their poor quality and even less output capability, plus the audio sounds like you're in a tin can.

 

So, here's my quote of the day "Anyone who does not invest in the Rangemaster, will surely regret it."

 

J S

Owner

 


 

  

I apologize for the delay.  I'm very pleased with my current arrangement and reluctant to alter it.  (XX) has a signal that travels many miles, exceeding my most optimistic expectations. And, all of this despite the ground coil. You have produced a wonderful product.

 

T C
President & General Manager

 


DEAR KEITH,   THANKS FOR  THE REPLY.  WELL IT HAS BEEN A I  THINK A 5 YEAR OR SO RUN.   THAT UNIT  HAS  BEEN  THROUGH  RAIN  AND  ALL TYPES OF STORMS.  IT  IS AN TOUGH OLD BIRD.     THE  FREQ.   HAS SETTLED  ON 1630 KHZ.   MOR MODULATION OUT PUT  I AM  USING AN  OLD VOLUMAX.  IT WORKS GREAT.   I   AM FEEDING  IN  THE MORNING   THE  PUBLIC ACCESS CHANNEL 88  FOR  THE MORNING SHOW.   ALSO FEEDING  WEB ACCESS ALSO.    I USE NEWS   FROM  DIFFERENT  SOURCES  PLUS  MUSIC.    BUT INTO  MORNING IT IS LOCAL  AND IT IS CALLED  THE HIGH NEIGHBOR SHOW.   3 HOURS OF OF MUSIC, NEWS, MUSIC   AND   PSA'S   LIKE AN OLD TIME  RADIO SHOW.    “”  AND  I  WE  ARE CLOSE FRIENDS   MANY YEARS AGO.   I   AM HAPPY HE DID.   WHEN  I   GOT  THE  UNIT,   I DID TAKE A LOOK INSIDE.   YOUR WORKMENSHIP  IS TOP OF  THE LINE.   WHAT RADIO IS TODAY,  THIS  WILL  BE  A WAY TO DO OTHER  THINGS.   THE FCC  AND OTHER  FACTORS HAVE DESTROYED  THE  RADIO FIELD.   I HAVE   IN  THE  FIELD  SINCE  I WAS 15.   ONCE AGAIN  THANK  YOU   FOR A GREAT  TRANSMITTER AN IT WAS A GREAT INVESTMENT.     


 

 

Hi Keith, My name is Robert L. Harold, I want to let you know that we are using your Range Master, and we are very happy with the service it is giving us, I have two of them set up for my station, one is in the city of “” and the other one is about 3 miles from me in the City of “”

.

Thank you

 


 

 Hello Keith,

    Thank you so much for all the extra trouble you went to, making sure that we had the transmitters to take to Mexico!!! Our trips always have challanges and this years trip was no exception.

    On our way to Weslaco, Tx we had two break downs...one a trailer tire and a vacuum pump on a van had to be replaced. Of course we were hoping to make it there early, so we could get all the permits that evening...we did, by Gods grace, get all the permits, but it was late.

    The next morning we got the group ready to leave for the border (early, of course), R took one last pass thru the dorm(where most of the group stayed) to make sure that nothing was left behind, and as he was closing the door a thought popped into his mind: " the transmitters are on the desk", He did not ignore the thought (as you can sometimes, when in a rush), but turned around, went back inside and sure enough there on the desk were the box of transmitters!!! We just Praise the Lord that He, reminded R about the transmitters (as in all the other things to get done) we had not even remembered them! I thought you might like to know the miracles that happen sometimes, and in spite of human weakness, He comes thru for us, if we will listen.

    The fact that you could even get them to us in time was a miracle, and yet when we got there, in all the happenings, we almost left them behind. The Lord is so wonderful! 

 

   We are making more roof materials to ship to Mexico, hence the reason for taking so long to reply.

   We will forward this to Jason.

    Thank you again,

                      P (and R) S

 


 

Just to let you know that we are very pleased with the transmitters, we have one at our house at about 28ft and range is amazing. About 1.5 miles quiet and able to listen at about 3.5 miles. it covers the west side and down town of “the town” very well. It is listenable but noises at about 4 miles. the second transmitter is in “the town” and it covers the little town very well.

 

I am using the SAM Broadcaster from Spacialaudio it is a great automation program. I have set up play lists with both music and talk shows. using the event scheduler I am able to schedule the play list to the hour during the day, and can schedule a week or more at a time. To get the signal over to “the town” which is about 15 miles from the main station, the Sam's has an encoder which I send the signal to a web host then using the Barix decoder it receives the signal then to a audio mixer to the Transmitter. One of the features of the Sams is in the Auto DJ mode if there is nothing in the Queue, as if I forgot to schedule an play list, it will play in rotation songs from the history log.

AM


 

Hi Keith

Thank you for producing such a good quality AM transmitter. I have had AM transmitters since 1948, but none could even come near the range or quality that the AM1000 has.

The sound is superb and is equal to its sister FM station. With them both working together, we now have a much better neighborhood radio station.

Thank you again,
Fred Koehler


Hi guys



I just wanted to drop you a note to let you know that I have finally gotten my transmitter that I purchased from you up and running, and it is performing flawlessly. We get great range and sound, and really enjoy listening to our station on short trips around downtown "Local Town". We get a good solid 2.5 - 3 mile coverage, sometimes better. I couldn't be happpier with my purchase, and I'm looking forward to adding more transmitters in the future.



PS. The next time you're doing station adds on your list, I'd appreciate a link to The "station". Info below.



JJ


Hello Keith just wanted to drop a line and let you know the transmitter is working great. Getting anywhere from .75 to 1.25 mile coverage. The audio is great, at the current time I am not using any extra compression or emphasis on the audio line, just the mixing console feeding the pr 1000. Wound up placing the transmitter on my roof that got about 32’ above the ground. I am very satisfied with the performance of the Range Master 1000. You have a fine unit and a fine sounding unit. Well done!!

 

 

Ted T


 

"We are amazed by Keith!  It is a great joy to talk with and work with a guy that does what he says and can back up his "story." "  Being aware, and afraid, of the FCC, we verified and double checked all his claims about the PART 15."  All are true, if you follow the guidelines and spirit of the laws."  ..."Keith provides us with the best tech support around and never once complained or got upset with my ignorance and inexperience with equipment.  We are looking forward to working with Keith some more."

 

Mark Sanger

President
Iredell Broadcasting, Inc.


April 22, 2010

 

Keith Hamilton

Hamilton Rangemaster

213 Caraway Lane

Cary, NC 27519

 

Mr. Hamilton,

 

We have purchased one of your AM1000 transmitters for one of our airport clients in the NYC area. The unit that we received was excellently constructed, and importantly very well documented. We have worked with other transmitter packages before and they can best be described as hobby systems. The AM1000 is put together as a commercial product ready to work.

 

We did have some problems with the special site conditions and the extra product service we received for Hamilton made the difference and our customer is very with the end result of the contract.

 

We are working on some more projects that need a radio transmitter and we are sure to use the AM1000 because it works an can help us make money.

 

Thanks for your help

 

George Cone

Alpine Systems


Our trusty Rangemaster has been up and running for almost 2 years now (July 2008) and I could not be more pleased.  The transmitter case and electronics are of the highest quality and the unit was a breeze to set up and tune.  It has weathered many an Idaho storm without the slightest complaint.  The transmitter is mounted about 32 feet above ground, with a copper ground rod and ten 20-foot ground radials.  The broadcast chain consists of a multi-band software-based compressor, an Aphex Compellor, and an Innovonics 222 processor.  It took some tweaking but the sound quality and loudness is as good or better than the commercial stations in town.  The listenable range varies from about 1 to 2 miles depending on the amount of interference.  Keith provides top-notch tech support and is a pleasure to work with.  The Rangemaster is definitely worth every penny.

Chuck
Twin Falls, Idaho
Victory1610

 


SORRY I DIDN’T GET BACK TO YOU RIGHT AWAY. I HAVE INSTALLED THE TRANSMITTER FOR THE CITY OF PLACE SC . WE USE IT TO SUPPLY TOURIST INFORMATION TO CARS AND RADIOS WITH

PUBLIC SPEAKERS LOCATED IN KEY LOCATIONS AROUND THE HISTORIC DISTRICT OF PLACE. I AM GETTING AROUND 1 ½ MILES SOLID BUT CAN BE HEARD 3 MILES WAY. THE UNIT IS MOUNTED ON  A FLAT ROOF THAT IS 30 FEET OFF THE GROUND. WE WILL BE EXPANDING THE STREET SPEAKERS TO THE LOCAL MARINA AND THE MAIN STREET SHOPPING DISTRICT.

THANKS


"With almost a year of continuous operation the transmitter is still going strong.   When the conditions are

right, I'm getting three plus miles in a dense urban area.  It's exceeded every expectation."

 

 

Steven C


Keith,

I have now been using the same transmitter I purchased from you around 2001(it is now 2007)!!  Ever since I installed it 60 feet up on top of my Rhon tower in Missouri. I have used it 24/7. It has weathered many severe weather storms, summer heat and winter cold all while never going of the air.  I use an Innovonics 222 Broadcast limiter before feeding the audio to the transmitter.  My station sounds as good as, if not better, than any other AM in my area!  I cover my hometown of about 1800 people (a little over a mile) and a larger radius with a vehicle radio!  When I first began broadcasting full-time on 1610khz in 1998, I was using a different more costly transmitter; your Rangemaster not only performs better, it cost almost half of what the other one had cost!  Thank you for such a good quality product!

 Ron S
 


(Undisclosed place), Texas, experienced difficult communications with our 10,000 residents after Hurricane Ike.

Management reviewed several options for improving communications and chose Rangemaster as the optimum way for future emergency communications within our subdivision.

 

(place) purchased two Rangemaster Transmitters.  One operates as a master transmitter at one location while simultaneously driving the second transmitter, located two miles away, via telephone wires. The master transmitter is driven by a Premier USB 1100 series digital message unit using a recorded flash drive message in a continuous loop. This accomplishes "Set and Forget" operation and provides desired communication with our residents.

 

When we started this project, we knew very little about low powered AM radio. This installation was completed one transmitter at a time using instructions provided by Rangemaster. The first transmitter installed easily and performed as expected with a 360 degree range of about one mile. Installing the second transmitter was easy; however, synchronization of both transmitters was a challenge. Fortunately, Keith was able to guide us though the steps to a successful conclusion and we have a set and forget system which allows us to communicate with our residents during times when we would otherwise have limited communication. Changing messages only requires recording a new message and changing out the flash drive.

 

Dan D, Emergency Management Coordinator, Place, Place, Texas.


As a retired professional broadcaster of 35 years including program director of WTIC AM, FM, Hartford, KFMB AM, FM, San Diego, K101, San Francisco, KMGX, Portland, Or, KRPM, Seattle, KYUU/X100, San Francisco and several medium markets as a PD, DJ, CE and consultant, I have never seen a better bang for the buck anywhere in broadcast than the Range-Master 1000, or a more enthusiastic and professional group than it's owners, and manufacturer. Our station and sites have been inspected and certified by the FCC with perfect records. I would tell anyone thinking of operating as a hobby, church, or fully commercial station such as we (BE Audio Vault, Pacific Recorders BMX boards, CRL, Dolby, PR Multimax and fully licensed STL's) that you will save money and get optimum results with Hamilton's Range-Master 1000 AM transmitters. Attempts to operate on FM or with any transmitter I know of other than Range-Master may expose you to penalties ranging up to 5 years, short range, frustration, and hindsight that Hamilton is the only choice. Our first transmitter has been operating with no maintenance on a 60' mast 250' above average terrain, with winters in the snow and summers above 100 degrees for 3 years. Nuff said? Bill Stairs, Chicago


Mr. Hamilton,

 The RangeMaster Transmitter works very well for me.  I am most interested in "closed campus" broadcast to a variety of receivers throughout my house, so range is not very important to me (although range is much better than I had expected).  Audio quality is very important because I experiment with a variety of audio processing equipment and program formats.  The RangeMaster Transmitter has the best audio quality of all transmitters that I have used.

 Here is a description of my installation and the results.

 The entire system is installed in accordance with the included instructions and therefore all FCC applicable rules are easily met.  I am impressed with the ease of installation, adjustment and the ability achieve the excellent results I had hoped for.

 The transmitter and antenna are mounted atop a 20' pole made of two coupled 10 foot sections of 1" steel electric conduit from Home Depot.  I went to Farm and Fleet and bought clamps, ground rods and large gauge copper wire.

I then buried two ground radials (space constraints prevented installing more radials).  The pole runs up the side of my 2-story house so I can climb on the roof to easily make the final fine tuning adjustments for best antenna match into the recommended 10 foot whip I bought at a local Radio Shack store.

 I am currently operating on 1520kc.  The signal is "local" quality to 1/8 mile, "suburban" to 1/2 mile and "distant" but still listenable to 1 mile.

I have operated briefly on 1610kc with better distance results because that frequency is much more quiet that 1520kc.

 Most of the time I feed the transmitter via an old Optimod 9000 with pre ACG and CRL NRSC filter.  I can run it as aggressively as I want and make it sound like the local "big boys", or (most of the time) run it very conservatively for excellent "hi-fi" sound on my vintage radio receivers.

 Thanks for building and marketing a fine hobby transmitter Keith!

 Stan

 



I purchased the Rangemaster to operate a little community radio station out of my real estate office.  I was in commercial radio off and on for over 25 years.  In the old days I used to think automation and other advances would  free us up from cueing records and dealing with carts.  I was naive enough to think that when we got the automation, we'd have more time to develop local news and useable information for our little town.  Of course it didn't work out like that at all.  Instead, owners of several stations could use a smaller number of people to work 4 or 5 stations.  After all....now you could do a 4 hour shift in 20 minutes. 

The Rangemaster is working great!  I am using an Inovonics 222 processor with it.  My antenna is about 25 ft....mounted on the top of my office.  I'm getting mixed results at a variety of ranges.  We come in pretty good ...up to about a mile.  However, car radio reception is pretty good in some areas 3-4 miles away.  I am very pleased with the Rangemaster!  We've been on the air since the middle of January (2007) and haven't had any complaints from the local 1000W AM in town (they're really broadcasting from another town 35 miles away with an STL).  We broadcast local news, weather, real estate info, local history, meetings, etc.  I have one paid sponsor.  I hope to get a few more soon.  I'm using the DRS 2006 automation system and it's working great.  It does have some limitations....by hey.......it only cost $69 online! 

I had a few difficulties getting my Inovonics 222 set up.  The transmitter was always being overdriven.   Keith sent me an attenuater to put between the processor and transmitter.  It works great now.

Life may throw you a few curves........but not the Hamilton AM1000 Transmitter.  It was snowed on, rained on.........we had a wind storm......etc.  It never blinked.  I hope to order another AM1000 by late summer. 

I've had absolutely no concern voiced over the station (and I'm amazed at that!) and have had no contact with the FCC.  Thank you Keith Hamilton.....for creating a great little transmitter!

Bobby S
AM 1630
Oregon


My name is Tony DeNicola, a professional radio engineer and owner of a AM 1000 transmitter operating on 1710 in Edison, NJ.  I also own and operate my licensed 1KW AM station in VA and work for Clear Channel Radio in New Jersey. I have to say that this transmitter stands right up to the sound of a Harris or Nautel  when you use professional audio equipment like a CRL, or Optimod.  I must say I’m very impressed with the coverage of the signal with such a low output power. The high Q gain of the output circuit really is incredible into a CB whip. My AM 1000 is mounted on my patio wood fence and is 10 ft off the ground and gets out 3 miles with great sounding audio using a Compellor and CRL compressor along with c CRL NRSC filter. I must give my thanks to radio engineer and also  owner of a AM 1000 to Dave McCrork who told me about Keith’s AM 1000. After I heard his station on 1620 in PA I was sold and contacted Keith Hamilton to purchase one.  I plan to broadcast Adult Standards along with Big Band music and news 24/7 by the summer of 2006 once I install the transmitter in my back yard away from the house on a 50 ft. telescopic mast. Thanks Keith for making it possible to broadcast to my local community legally.  I have pictures on my website.

Tony DeNicola
www.tonydeeradio.com


By the way, my Home School class is now programming  weeknights and weekends and are enjoying the world of broadcasting as I have set up a studio. The Rangemaster is the finest sounding LPAM part 15 transmitter I have ever experienced. Thank you for all your help in making this happen for the students on our budget. The chief engineer at our cluster of commercial broadcast stations where I work was amazed at the range and audio output and even more so, after installing an Inovonics 222 in the audio chain
RK
 


My station, RadioKVMW, AM 1670, is on the air. Thank you for all your help. I can receive my station on my car radio at a distant of two miles very good. The extended range is from 3 to 4 miles depending on the weather conditions.The technician who is installing my equipment on his off time has  been unable to install my inovonics 222. I expect to get even better reception when he is finished. The rangemaster transmitter is ever thing you said and more. I have it on a 40ft mast. My house is on a mountain(hill too those who lives in the real mountains) on the edge of town. Thanks again for all your help and the great rangemaster transmitter.

CT
Texas

Keith, an update on my radio station since I first wrote you how satisfied I was with your transmitter. Using a boom-box with an antenna I pick up my radio in a brick office building 2 miles from the transmitters. I found that the boom-box was better than the Radio Shack antenna. Thanks again

CT
Texas


Dear Keith Hamilton,

Just a few words concerning our range master.  It is serving a great purpose.  We are able to transmit the signal over 1.5 miles.  We are excited about the distance it cover. 

However, I never did get a certificate to place on the wall should someone inquire concerning our station.  If at all possible, could you please send me that information? 

Other than that, the station is outstanding.  Truly this will be a major blessing for our church growth and those who are willing to invest their time in this endeavor of faith.

Thanks again,

Pastor M. (Name removed)

(Name removed) Baptist Church


 

I WOULD LIKE TO SAY THAT I AM GREATLY SATISFIED WITH THE RESULTS OF ITS TRANSMITTER RANGE MASTER 1000.

 

OUR PROJECT RADIO (taken out) 1640 AM US THIS ALLOWING COVER OUR PEOPLE, (location taken out), WITH THE RANGE US ALLOWS YOUR TRANSMITTER. WE PLAN TO CREATE A NETWORK TO COVER THE ENTIRE PEOPLE. THE AREA COVERED AROUND THE TRANSMITTER IS BEING 2.25 MILES FROM THAT TRANSMITTER TO NORTH, SOUTH, EAST AND WEST.

 

YOU US PROMETHIUM REACH AND SO WE ACHIEVED. Thank you.

 

JOE G. (location taken out)

NOV 20 2009


The RangeMaster is the best Part 15 transmitter I know of.  On a 25 ft office building roof with a 5ft poll, a single transmitter gave us a distance of nearly 2 miles!  Audio was excellent.  Getting ready to put a community radio station on the air using multiple transmitter locations.

Jim H.
California


The performance, reliability, and audio quality of the AM 1000 is amazing.  Our audio chain consists of an Aphex Compellor 320A and an Omnia 3AM.  Our audio chain coupled with the AM 1000 produces a sound so good that you can't tell the difference in audio quality between us and our local small market 25Kw AM Radio Station.  You could pay thousands more and only get half the audio quality of the AM 1000. In our opinion the AM 1000 is absolutely the BEST transmitter available.

Regards,

XJO AM (1610kc)(Santa Clarita, CA)


As an owner of the Rangemaster outdoor transmitter, I can genuinely vouch for its professional design and performance without hesitation. My Rangemaster has been performing flawlessly for several years and under many adverse weather conditions here in the north east. Its rock-solid signal can be compared to units costing thousands of dollars and my coverage area has far exceeded all of my expectations. While I would have been content with a 1-2 mile range, I have received telephone calls and e-mail from listeners at distances as 10 miles or more from our studios. I consider the Rangemaster the be the Cadillac of low-power transmitters on the market today and would highly recommend it to any serious broadcast enthusiasts.

William T.
Upstate New York


NOTE: THIS NEXT PERSON BOUGHT AN AM1000EC INDOOR UNIT WHICH GOES INDOORS, IT DOESN'T GET THE RANGE AS THE OUTDOOR UNIT.

We used the RangeMaster at our Church for a drive-through Christmas Play so people could stay in the warmth of their cars yet hear messages we transmitted throughout the performance. The RangeMaster worked beautifully and was easy to set up per the enclosed instructions. Sound on the radio was as good as a radio station within the half mile radius. The people at RangeMaster were courteous, knowledgeable, and easy to work with. I highly recommend this unit for similar uses.

Chris
Rural Hall, NC


I used 5 am 1000 range masters, for my lpam in nv, they were on a billboard 60 feet high, they more than covered the town 4 miles by 3 miles, and my station sounded like a 1kw these are the best xmtr's you can buy, and they are worth every penny, I know, I have set up stations all over the u.s.

Brad
California


I read the specs on the website and really doubted how well it would apply to a large metropolitan city.  I'm happy to say that my Rangemaster is exceeding all expectations.  On a stick at about 40 feet, I'm getting a good listenable signal in the car about 3 miles.  It sounds great!

Steve


Our school has been using RangeMaster transmitters for our student radio station for some time. The quality is exceptional in every important area. The RangeMaster has the best coverage, the best sound, the best reliability and, most importantly, the best company to stand behind it. The syncing feature has given us the ability to serve specific areas with professional results. Keith, we’re real believers in your product!

Ralph
California


I'm a novice who was able to set up the AM1000 Rangemaster quickly and easily. Keith has been very helpful and gives good support; he is committed to providing excellent service. The AM1000 Rangemaster transmitter is working great with 1.5 to 2 miles in a densely populated part of the city. The sound is strong and clear and I'm very happy with the performance, stability and quality of the unit. I highly recommend the RangeMaster.

Mike T.
Massachusetts


Hi Keith,

Today we went for a family drive to see how far we would be able to receive our signal.

I have it mounted on a rohn 25 type of tower at 25 feet with the ground strap of about 6 inches clamped onto the tower. Useable range in the car, ie, pleasant to listen to is an easy 2 miles - depending on electrical noise from the electrical utilities. At about 5 miles it was getting unpleasant to listen to but still understandable.

At 10 miles you could tell it was still there, but not understandable. At that point I pulled out my Radio Shack DX440 receiver and Kiwa Pocket Loop antenna. Was able to pull in the signal again and easy to understand. If I was going to listen at that range I would put up a long wire or use a better loop antenna - for instance the Kiwa Medium Wave air core balanced loop.

In other words it was getting to be a dx signal. We ran out of road at 14 miles and at that point we could tell it was there on the car stereo - barely, and with the portable receiver with loop antenna it was back up to understandable but not to pleasant to listen to.

We had been running the audio a little on the low side due to some of our test programming not being equalized to the same audio levels.

So the last few days we have been turning up the audio input until it starts to get a little distortion and then backing it down just a little bit.

The difference was quite noticeable, especially around town at the 2 mile range in that it cut thru the electrical noise alot better. I would estimate an increase in useable range by 1/3 to 1/2more by getting the average modulation higher. Actually the difference was enough that we were raising our eyebrows in surprise. So down the road a decent processor will be installed so we can take advantage of the

+125% modulation that the RangeMaster will transmit.

As far as audio quality, the transmitter is quite hi fi, so it will depend on your receiver as far as how wide its IF filters are for how good of a sound you will get. With the average wide as a barn door consumer AM receiver with decent speakers it will give a signal comparable to an FM.

Dave C.
Washington State


I've been using the Rangemaster Transmitter for the past three years for my Part 15 station and couldn't be more satisfied with it's performance.

It is an excellent, reliable unit.

I live in a condo complex in a very congested area of New Jersey. The town I'm in has warehouses other complexes and lots of overhead electrical wires. My transmitter is on the second floor terrace of a five story building. Even with the height restrictions and the obstructions I get almost 1 mile range and the audio quality is excellent If you are planning to start a Part 15 station, I would strongly recommend the Rangemaster, you won't regret it!

Jim M
Edgewater Radio


May 2, 2005

The Rangemaster1000 has proven to me to be the most effective Part 15 type accepted AM transmitter available on the market today. The range is phenomenal and the sound quality fantastic. The service after the sale is top notch. All our questions were answered fast and accurately. The best product, and the best people!

Thanks!

Chris Conti
President, BenchmarkUSA


The Rangemaster is absolutely the best low-power transmitter on the market today. I have owned a Rangemaster for over 5 years. It is in my attic and I am currently getting up to 5 miles reception on my car radio. This is not diameter but one way. Be sure to keep the antenna as straight as possible, tight with no slack. I occasionally experience distance reception at 8 miles. I currently use the station as a community radio station playing music, news, and public service announcements along with live dee jaying. The transmitter is connected to my PC which has radio automation software on it. I also have a mixer and CD player connected. The station is 24 hrs a day. The audio quality is excellent and is equal to or better than most AM radio stations in the area. In fact, the audio quality of the Rangemaster is better than most AM radio stations within the first mile. Except for having a burned out transformer (caused by the extreme Alabama heat in the attic during summer months), the Rangemaster has been up and running the entire period of ownership.

Kudos to Keith Hamilton.

Benjamin
Alabama


Keith,

I wanted to tell you how happy we are with your transmitters.  The sound is incredible and the distance our signal goes exceeded my expectations.  Thank you!

Bill H.


As a commercial radio DJ, I’ve always had limitations as to what I can do and say over the airwaves. Not anymore thanks to the RangeMaster LPAM. We have about a 2 mile radius around my house that can clearly hear the antics and goings on at my Radio ranch. Our RangeMaster’s signal is clean, and the Bass response is like nothing I’ve ever heard on the AM dial. We’ve been running the RangeMaster for many years and with all the high winds, bad weather and extreme heat here in Las Vegas, it just keeps kicking out the hits. What transmits in Vegas keeps transmitting in Vegas thanks to the RangeMaster.

DJ Midmass
www.phatrockradio.com


I used the Hamilton Rangemaster transmitter... I had 4 of them, with the main here in a small town of about 6,000 homes. the station at 60 foot, covered the town and then some. in another part of the county, I had another transmitter on top of a motel, audio connected by telephone line, and eq'ed for frequency and balance. that transmitter covered the island in witch it was in, and overlapped the first town's signal without a problem.

The audio quality of the Hamilton is professional quality. can't get any closer other than fm... the audio quality, when set up correctly from your audio source, should sound as equal to big stations. there is no difference. 600 ohm input to the Rangemaster, is the same as the 50,000 watt transmitters.
The range, with good grounding, and height of the transmitter will, yield a harvest of signal output. the best way I can relay this, and this is where people have a hard time understanding..... most transmitters are tuned for the highest output within the FCC laws.... this is the same except, with this transmitter, it is best optimized to the environment in which it is installed, therefore transmitting a signal that is surpassing any part 15 transmitter that is tunable. this, itself, makes the Rangemaster the king of the air.

Bill B.
New Jersy


Keith, I think you've done a great job with your Rangemaster and made it possible for old pros like myself to get into hobby broadcasting without being forced to buy junk. Just because we broadcast as a hobby, doesn't mean we no longer desire using professional equipment!

Harvey


Of course the most important thing when installing any AM antenna is the ground system. With a properly installed Rangemaster the performance for me has been both impressive and very reliable. Mounted outside on my roof on a tripod, exposed to all the nasty weather Indiana can throw at it, this unit has functioned non-stop since installed. Despite local lightning strikes and below zero weather, this transmitter marches along like a little grey soldier asking nothing more than clean 12v DC and a good antenna to shoot with! If I had to do this purchase over again, would I? You betcha!

Greg Stoddard
Pierceton, IN


Hi Keith! Just wanted to tell you how great your transmitters are. I've put several in for my customers and they love them. The range and audio quality are exceptional and I want to thank you for your great products.

I highly recommend them for anyone who's serious about part 15 broadcasting!

Thanks again!

Joe
Pelham Satellite & Communications
Shelton, Ct. 203-3758355


I use the Rangemaster to play music that just isn't heard on the radio anymore. My listeners are older folks around my immediate neighborhood who miss hearing the old "adult standards". Also often carry "Classic Heartland" out of Branson MO.  I have the transmitter on when I am home and on weekends.

The Audio fidelity is quite acceptable. Range is about a mile and a half on a car radio. Distant fluttering traces of signal can be heard as far away as five miles. It continues to surprise me that 100 mw. can do that. Table top or bedside radios pick it up very solidly for a couple of blocks in all directions, and that's the neighborhood I'm trying to reach.

I use an Orban gated compressor/limiter to give the signal extra punch. The transmitter is mounted atop a 25 foot pole beside the house with the ground wire dropping directly to a buried 8 foot rod. The transmitter tunes up well with that arrangement and runs happily at 100 mw.

It's just a lot of fun.

Ken K.
California


Dear Keith,

Just wanted to drop a quick note about your AM1000 Rangemaster we purchased this past winter. This was the second transmitter we bought from you (the first was for a college radio station, which is on the air and has a whole radio course built around their low power am station which they love, and quite frankly sounds as good as the full-power commercial stations in the area). Our latest application involved setting up the Rangemaster to broadcast christmas music for a community-funded lighting display show for the holidays. People were able to drive through the displays and tune into holiday music / updates as they drove around in the comfort of their vehicles. Coverage was excellent over alarge city park, and we easily mounted the unit on top of a shelter house. Easy installation, quality - durable manufacturing, and it even survived the minus zero weather... :) Thanks for the great product, and I would definitely recommend anyone looking for an LPAM to buy this unit. You will be satisfied.

Best,
Edwin Brand
KMGO-FM & KCOG-AM Radio


Keith,

I'm using the innovonics 222. Range is 1-3 miles. Still have some work to do. I'm programming Country Music. The transmitter is up about 45 feet.Plan to go higher on my tower. Audio on transmitter is great.

I wish we could put out more power. I like the 1000 rangemaster. I would purchase another one.

Sonny


Our local talk radio station left our town and I got picked to come up with a solution. I did a lot of research on part15 and found that everyone recommends the Rangemaster. I have never messed with any radio equipment before the Rangemaster. After receiving it, and watching the included DVD, I had this transmitter up and running within a few hours. The transmitter is up on top of my building about 30 feet high. It really sounds great. We are getting great range. On a good day we can hear the station about 8 miles away, but the average is about 3 to 4 miles on a good signal and we live in an area with lots of hills and mountains. After seeing how great this transmitter works, we ordered another one for the next town in our area and it is now running great and now everyone is happy. The range with the ease of setup (even for me) makes this the best transmitter out there,

Thanks Keith for everything

Terry Brown
WKMX Radio
AM1620
www.wkmxlive.com


We tested other transmitters on the market before choosing the Rangemaster. There's really no comparison, as the Rangemaster gives far superior range and sound quality. Additionally, our broadcasting engineer raves over it's superior construction and design. Way to go Keith!

Regards,
Rob Waddell
(Note: Sadly our friend Rob passed last year)
CEO
MarkeTrax Communications


The Hamilton AM transmitter has the best sounding audio of any low power AM transmitter on the market today. In addition the broadcast range clearly surpasses that of any part 15 AM kit on the market. This unit is FCC type certified for part 15 AM applications. Knowing the unit has the FCC seal of approval allows me to broadcast hassle free with little worry about a problem with the FCC.

William C. Walker
WILW Radio
Medina, NY


Mr. Keith Hamilton
213 Caraway Ln.
Cary, NC  27519

Dear Keith,

I just wanted to write to let you know how pleased I am with my AM1000 transmitter. Its’ quality and durability have certainly exceeded my expectations.

I purchased the unit from you two years ago for my neighborhood broadcasting station after having unsatisfactory results with a competitor’s “assemble-it-yourself” kit transmitter. The AM1000 was easy to set up and tune, and after two years of continuous operation, still performs flawlessly. I would definitely recommend this unit to anyone who is looking for a part-15 AM transmitter with superior range, sound quality, and dependability.

Sincerely,
Alex H.


Our company recently installed a Rangemaster AM1000 to provide community radio in our area. It has exceeded our expectations! Not only do we have superb range, but coupled with an Inovonics 222 AM processor, we actually sound better than the large FM stations in our area! The craftsmanship of this unit is excellent and its performance is every bit as good as our regular broadcast equipment. I highly recommend the AM1000 to any organization that wishes to provide quality “ON AIR” programming for a small community or other application. In our opinion, it’s the best on the market!

Old Dominion Broadcasting
Norfolk, VA
www.khib.tv