| Author |
Message |
    
Audioman
Junior Member
Username: Audioman
Post Number: 14
Registered: 2-2004
| | Posted on Sunday, June 20, 2004 - 1:07 pm: | 
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I am very interested in setting up a repeater for 11 meter use. For no real reason except for the "it is a neat thing to do" factor.
Any suggestions? Where do I get one, how much are they, who makes them, etc?
Thanks
audioman |
Hollowpoint445
Junior Member
Username: Hollowpoint445
Post Number: 28
Registered: 6-2004
| | Posted on Sunday, June 20, 2004 - 4:04 pm: |
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Well, to start off a repeater is illegal for 11 meters. Most repeaters use FM and that's illegal on 11 meters. Then there's the challenge of keeping if from keying because of strong signals recieved from propogation. As far as I know there are no CB's made with CTCSS encoders so that's not really an option. The President HR-2600 has built in CTCSS encoding, but you have to modify it for use on CB and that's illegal too.
Maybe you should just go with a radio service where repeaters are legal - like GMRS if you don't want to take a test, or Amateur Radio if you can memorize the answers to 30 questions. Of course then there is repeater coordination which is mandated by the FCC for both services, and if things are crowded in your area you might not be allowed to put one up. |
Geekster
Junior Member
Username: Geekster
Post Number: 22
Registered: 6-2004
| | Posted on Sunday, June 20, 2004 - 4:56 pm: |
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This could be done like a simplex repeater for the ham bands. Only thing is you are limited to 65 feet antenna height and 4 watts. Not sure it would accomplish much other than extending HT range.
You wont be able to find an 11 meter repeater but they did make them for 10 meters. Repeaters start at $600 and up. |
Bruce
Senior Member
Username: Bruce
Post Number: 1290
Registered: 9-2003
| | Posted on Sunday, June 20, 2004 - 7:46 pm: |
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Repeaters are not practical on CB leagal or otherwise like others have stated unless the FCC was to set aside a repeater band you would be trashed by illeagal stations on your input. Now 10 meters is a very good band as is 6 for repeaters lots of space .... you can lissen on 10 meters with the 257
CALLING freq 29.600
Repeater outputs 29.620, 29.640, 29.660
inputs are -100khz ( 29.520 ect )
as a general rule all repeaters are FM there ARE ATV/DIGITAL ones
ok here is the major FM calling frequencys 52.525, 146.520, 223.500, 446.000
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Lowpowerhal
Intermediate Member
Username: Lowpowerhal
Post Number: 259
Registered: 7-2003
| | Posted on Sunday, June 20, 2004 - 9:30 pm: |
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It would be nice to have a 11 meter beacon. Just to check if conditions are good to talk, But the FCC would have it shut down in less than 24 hours.As far as running a repeater skip would set it off and would be no use to you.But gmrs runs on fm and has repeater frqs, but make shur you have permission to access the repeater. Gmrs is a new cb band and you have to be license and pay $75 and you get a FCC call letters.Audioman best to invest in a good antenna as far as 11 meter gos.Good luck
Hal |
Bruce
Senior Member
Username: Bruce
Post Number: 1291
Registered: 9-2003
| | Posted on Monday, June 21, 2004 - 12:30 am: |
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GMRS is NOT a CB band MURS IS !
2 watts, 5 channles 151.820, 151.880, 151.940, 154.570 and 154.600 mhz
NO RESTRICTION on antennas gain ! i run a 17 foot tall 9DBI gain veritical and get 7-11 miles base to car SOLID. |
Lowpowerhal
Intermediate Member
Username: Lowpowerhal
Post Number: 262
Registered: 7-2003
| | Posted on Monday, June 21, 2004 - 7:20 pm: |
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Thanks Bruce for setting me straight, I Had Murs and Gmrs turned around.Bruce i got question on MURS,I wonder what kind of distance you get yagi to yagi and fairly flat ground. 25 miles do you think?
Hal |
Bruce
Senior Member
Username: Bruce
Post Number: 1295
Registered: 9-2003
| | Posted on Monday, June 21, 2004 - 8:51 pm: |
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range is about the same as 2 meters from one station to another depends on the antennas you are using. Back in the 60 's I ran a ARC-3 WW2 transmitter about 3 watts into stacked 11 elm cushcraft beams at 40 foot. if 2 stations over flat land were to do this on murs 25 miles would be with in reason. WB2WIK ( STEVE ) was a well known 2 meter user in the 60's he ran a single 15 elm beam at 50 foot .... we talked on many a night and to his house in springfield New Jersey was 22+ miles and i did it with 3 watts AM!
Low loss cable a high antenna with gain nothing less than a ringo ranger and MURS becomes a very usefull band. Just lissen to 2 meters and what can be done on 2 can be done on MURS. |
Ryan
Member
Username: Ryan
Post Number: 95
Registered: 11-2002
| | Posted on Tuesday, June 22, 2004 - 12:01 am: |
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what you could do is take a CB and an FRS radio and patch them together with vox switches(most FRS radios have it built in. take reciever audio from radio a to the TX input of radio B and vise versa. when someone keys on FRS radio, it re-transmits it over CB and vise versa. this would be an excellent setup for apartment dwellers that cant have cb antennas on the house.
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Mikefromms
Intermediate Member
Username: Mikefromms
Post Number: 203
Registered: 6-2003
| | Posted on Tuesday, June 22, 2004 - 8:35 am: |
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I heard some guys in Louisana on 2 meters who had an 11 meter signal going in and coming out on 2 meters. Heard it myself. I, too, think it would be for too noisy on 11 meters for a repeater to be practical at all. The folks on channel 6 with their megawatt stations would key it up 40 channels away!
mikefromms |
Viking
Intermediate Member
Username: Viking
Post Number: 133
Registered: 2-2002
| | Posted on Tuesday, June 22, 2004 - 10:34 am: |
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Now that wer're convinced that an 11 meter repeater would not be as practicle as it seems, I have an article that tells you how to make one for 11 meters. If anyone's interested I could scan it and send it to you. |
Tech808
Moderator
Username: Tech808
Post Number: 2719
Registered: 8-2002
| | Posted on Tuesday, June 22, 2004 - 10:42 am: |
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Joe,
Heck scan it or copy and paste it and make a post in the Subscriber (Preview) Area Under Projects
Somehow I think there might be several Forum Members out there that would like to try it. 
Lon
Tech808 |
Bruce
Senior Member
Username: Bruce
Post Number: 1298
Registered: 9-2003
| | Posted on Tuesday, June 22, 2004 - 8:13 pm: |
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Frs to cb ??????? Hummmmmmmm ?????? |
Tech8541
Moderator
Username: Tech8541
Post Number: 225
Registered: 12-2003
| | Posted on Wednesday, June 23, 2004 - 12:33 am: |
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all you need is a cor (carrier operated relay), 2 radios and 2 antennas. the problem is going to be the lack of a duplexer. so you won't be able to run a lot of power (tx radio will desense rx radio) and the the freqs and antennas must be carefully seperated. if it was me i would make the split at least 1mhz. the antennas would be one above the other(to provide best ant-to-ant isolation) with the rxing antenna on top.
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Tech237
Moderator
Username: Tech237
Post Number: 58
Registered: 4-2004
| | Posted on Wednesday, June 23, 2004 - 9:06 am: |
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Best repeater I ever came across used a homebuilt crystal filter to isolate the rx from tx. 2m and covered over 400 miles DAILY form a hill 1500ft ASL.
In other words I could use form my home in Sydney to my sisters in Brisbane (760miles) and loose (well it could no longer hear me) 30 miles from her house. |
Ryan
Member
Username: Ryan
Post Number: 97
Registered: 11-2002
| | Posted on Wednesday, June 23, 2004 - 10:02 am: |
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viking, i am interested in this. scan away
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Viking
Intermediate Member
Username: Viking
Post Number: 134
Registered: 2-2002
| | Posted on Wednesday, June 23, 2004 - 10:38 am: |
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Sounds good Lon. I'll dig it up and get it on this week, if not, this weekend for sure. |
Tech808
Moderator
Username: Tech808
Post Number: 2755
Registered: 8-2002
| | Posted on Thursday, June 24, 2004 - 8:29 am: |
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Viking,
Thank You!
I am sure a lot of the Forum Members will be very interested in reading it.
Lon
Tech808 |
Viking
Intermediate Member
Username: Viking
Post Number: 135
Registered: 2-2002
| | Posted on Thursday, June 24, 2004 - 8:30 am: |
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Found it. The article's called "Build a C.B. 'talkback' Repeater", by Fred Nachbaur.
What I've done is put it on my web site. There's a 7-page Word document, 1-page Word parts list, and 6 .gif images. I had this on my hard drive and this was the easiest way to 'send' the information. Lon, I will post this also in the Subscriber (Preview) Area Under Projects. If you want, you can copy it onto Copper. As I recall, the information in the artile (which I got from a friend of mine) can be freely used for personnal, non-commercial use. It looks like I scanned/re-typed the article without leaving the magazines'name I got it from.
http://viking245.8k.com/CB-Repeater/
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Viking
Intermediate Member
Username: Viking
Post Number: 136
Registered: 2-2002
| | Posted on Thursday, June 24, 2004 - 8:37 am: |
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Looks like you'll need to post it for me Lon. It appears I'm not allowed to post there. |
Tech808
Moderator
Username: Tech808
Post Number: 2758
Registered: 8-2002
| | Posted on Thursday, June 24, 2004 - 8:55 am: |
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Joe,
I just tried the Link you posted and it appears to be working ok with instructions, parts and pictures.
Just let me know.
Lon |
Geekster
Junior Member
Username: Geekster
Post Number: 27
Registered: 6-2004
| | Posted on Thursday, June 24, 2004 - 8:56 am: |
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Thanks,
I will be adding this info to my website.
Thanks again,
www.kb8ygc.com |
Geekster
Junior Member
Username: Geekster
Post Number: 29
Registered: 6-2004
| | Posted on Thursday, June 24, 2004 - 9:04 am: |
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I couldn't get the parts list to show up. Any chance you can send both text documents to me?
dennis@kb8ygc.com
I would apprecitate it and I will make it available on my website for others as well.
Very Interesting... |
Ryan
Member
Username: Ryan
Post Number: 98
Registered: 11-2002
| | Posted on Thursday, June 24, 2004 - 9:31 am: |
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the parts list and word doc arent coming up for me |
Viking
Intermediate Member
Username: Viking
Post Number: 137
Registered: 2-2002
| | Posted on Thursday, June 24, 2004 - 10:32 am: |
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Hmmm. They are both a "Microsoft Word 97-2002 Document". When you click on them, do you get the option to Save To Disk? If so, do that then open from your hard drive. If that doesn't work, it sounds like my free web page has restrictions.
Let me know if that works. |
Hollowpoint445
Junior Member
Username: Hollowpoint445
Post Number: 37
Registered: 6-2004
| | Posted on Thursday, June 24, 2004 - 3:42 pm: |
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It worked just fine for me Viking. I used wordpad to view them. |
Dindin
Intermediate Member
Username: Dindin
Post Number: 209
Registered: 2-2004
| | Posted on Thursday, June 24, 2004 - 7:07 pm: |
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same here,opened for me in Wordpad.cool project,Thanks Viking |
Dindin
Intermediate Member
Username: Dindin
Post Number: 210
Registered: 2-2004
| | Posted on Thursday, June 24, 2004 - 7:13 pm: |
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Geekster,nice web page.
Tipp City?while working up in Versailles some 20 years ago the only thing I can recall about Tipp City was an all night X rated drive in theater.somewhere around the intersection of us35 and us75 maybe.of all things to remember about your town.....sheesh |
Geekster
Junior Member
Username: Geekster
Post Number: 44
Registered: 6-2004
| | Posted on Thursday, July 01, 2004 - 9:40 am: |
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Thanks,
I am about 16 miles north of Tipp City. I don't recall the drive in at all but I am not really from that area. Looks like they have taken the Tipp city site down so I need to fix that link. Route 35 is further south of Tipp city closer to Vandalia area there are strange things that occur down south of the SR-571 border.
Here is that repeater article in easy pdf format for those of us that are slow... LOL
http://www.kb8ygc.com/Repeater.pdf |
Moonshadow
Junior Member
Username: Moonshadow
Post Number: 30
Registered: 7-2004
| | Posted on Wednesday, August 04, 2004 - 7:31 pm: |
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Ok, repeaters are ok, my parents run FM for the farm. But, they are alot of hassle! The only DECENT place to put the repeater to where they could get a good signal was on top of an old silo that they don't use any more. Then, they have the hassle of the FCC crud! And, when they are having problems with the repeater, it takes FOREVER to get someone out there to look at it! But, we were questioning this last year when my folks and CM and I bought out little two way radios. Can my parents leagally talk on the channels that need the FCC license? I mean, they hold the license for the repeater, would they need to get another one for talking on the little Motorola 2 mile radios??
Thanks! |
Hollowpoint445
Intermediate Member
Username: Hollowpoint445
Post Number: 196
Registered: 6-2004
| | Posted on Wednesday, August 04, 2004 - 11:17 pm: |
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What license do they have for the repeater? And what kind of radios did you buy? They sound like FRS radios if they have a range of 2 miles. Repeaters are not permitted on FRS. |
Moonshadow
Junior Member
Username: Moonshadow
Post Number: 33
Registered: 7-2004
| | Posted on Thursday, August 05, 2004 - 1:37 am: |
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Ok, yes they have FRS radios for when they go to tractor shows and such. THEY DO NOT USE THEM ON THE FARM. They use them seperate for the farm. Not sure what type of radios they have, but they are Midland 2 way radios, either that or GE, can't remember, they got the radios when they had to get the repeater. Pretty much, the radios came with the repeater. On the repeater they can get a good 15-20 miles from the base. They had to get the license when they installed the repeater. |
Bruce
Senior Member
Username: Bruce
Post Number: 1427
Registered: 9-2003
| | Posted on Thursday, August 05, 2004 - 10:28 am: |
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The repeater will be on the 50, 150 or 450 mhz range bands. now the simplest way to tell which is to look at what antenna is used on the portables or mobiles.........
a 50 mhz mobile antenna will be at least 4 foot, A 150mhz will be 19 in to 45 in and a 450mhz will be under 19 in.
If your using HT's and the antenna is a THIN " RUBBER DUCKY " about 6 inchs long it's a 450mhz radio, a THICK ducky about 8 inch is a 150mhz radio and a THICK ducky about 18 in is a 50 mhz one.
No matter what a FRS radio will not work. |
Hollowpoint445
Intermediate Member
Username: Hollowpoint445
Post Number: 197
Registered: 6-2004
| | Posted on Thursday, August 05, 2004 - 12:26 pm: |
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Without knowing what kind of license and repeater system your parents already have, and what service the new Motorola radios operate on, I can't give you an answer.
The generic answer is this - an FCC license is for only one service and usually only one pair of frequencies. Unless your new radios work with the existing repeater, you need to get a new license to use them.
You said that the new radios are FRS radios. If that is correct then they don't require a license. FRS radios shouldn't be capable of repeater operation. GMRS radios are capable of repeater operation and are sometimes sold as FRS radios. Whenever using a GMRS radio on a GMRS frequency at GMRS power levels you need to identify yourself with a GMRS license. |
Tech833
Moderator
Username: Tech833
Post Number: 804
Registered: 8-2002
| | Posted on Friday, August 06, 2004 - 10:07 am: |
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Lowpowerhal wrote: "It would be nice to have a 11 meter beacon. Just to check if conditions are good to talk, But the FCC would have it shut down in less than 24 hours"
Not true Hal. Check here- http://www.dxring.net/11beacon.htm
That beacon has been on the air over 3 years. FCC knows all about it. No problems. The webmaster will tell you all the places it has been I.D.'ed. I believe, it has QSL'ed many counrties and almost all the states. |
shock wave (Unregistered Guest)
Unregistered guest
| | Posted on Thursday, September 09, 2004 - 5:08 am: |
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I made a simple CB repeater from a TRC-422 and a 25 watt marine radio. The basic key is the carrier operated relays. Each radios squelch circuit must be wired to drive small transistor such as a 2N2222A that will fire the relay coil when the squelch opens to key the oposite transmitter. It is important that a VHF FM radio is used with the CB so it will not cause interference to the CB when the FM transmitter is keyed. I chose the Realistic TRC-422 radio as the CB because it had good selectivity and a hyterisis squelch circuit that was very forgiving in it's setting. I used a 5 min. timer triggered off the squelch of the VHF radio so that when it detected my input FM signal it turned the repeater on for 5 min. In the event the the CB squelch was held open for 5 min. the repeater would shut down until the FM signal was detected again. This repeater allowed me to access my base station signal from my car within 20 miles and from a hand held within 5 miles. The AM power could be run at 100 watts without affecting the FM receiver. |
Bruce
Senior Member
Username: Bruce
Post Number: 1547
Registered: 9-2003
| | Posted on Thursday, September 09, 2004 - 6:39 pm: |
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shock wave
Neet idea ........ But using a MARINE RADIO ? |
Mdiver
Intermediate Member
Username: Mdiver
Post Number: 170
Registered: 11-2003
| | Posted on Thursday, September 09, 2004 - 10:00 pm: |
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Ok I have a cb friend he use's his11 meter repeater at times were he lives.. ((5mileshand held)) and it works great for him....
CEF-252--mdiver |
Bruce
Senior Member
Username: Bruce
Post Number: 1552
Registered: 9-2003
| | Posted on Thursday, September 09, 2004 - 11:24 pm: |
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Having spent about 35 years using FM and repeaters they can be very good tools to extend range. Now my last machine WR4ANA on 52.55/53.55 covered most of tampabay from a car. As for HT's you lack efficent antennas and counter poising of the radio since a cb set needs 102 inches in BOTH directions ..... unlike a 440 mhz radio they requires only 6 INCHES. Now using them on very low frequencys gets tricky mainly because noise goes up antennas quilty goes down no way around it noise squelches would go bonkers and at 11 meters would make the use of a TONE SQUELCH mandtory. Few cb sets are set up with a transmitted " PL " tone. Now "PL" would keep you from having to lissin to the junk other than the person you wanted to talk to..... not a bad idea. Intresting how repeaters are now accepted even in the cb band ..... leagaly aside. |
Geekster
Intermediate Member
Username: Geekster
Post Number: 121
Registered: 6-2004
| | Posted on Wednesday, November 10, 2004 - 8:03 am: |
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This file is no longer available on my website. I posted this for entertainment purposes only.
Thanks. |
Phineas
Junior Member
Username: Phineas
Post Number: 37
Registered: 4-2002
| | Posted on Wednesday, November 10, 2004 - 2:30 pm: |
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There is just something backwards about this whole concept. In order to do something like this, you will have to know more than a little about electronics. A person with such knowledge could easily pass a technician test. Or, at the very least set one up on GMRS or Murs. 11 meter? Why?
Second, it would be easier just to use a computer software like EchoStation, and use an old computer as a repeater controller. A reciever radio and antenna(Even a scanner with an external antenna will work!!), A transmitter with a good antenna, a sound card interface(Like RigBlaster, etc...), and the software(Like Echostations or similar), Voila....you have a repeater system.
Now that that is said, whether you get busted or not having one on 11 meters is another issue.
Phineas
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Geekster
Intermediate Member
Username: Geekster
Post Number: 122
Registered: 6-2004
| | Posted on Saturday, November 13, 2004 - 10:35 am: |
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That is possible but a repeater on 11 meters probably wouldn't fly anyway. Not sure if anyone would be inerested.
The GMRS or MURS could be a valid one. I haven't worked with the echostation software. I do however plan on building a 440MHz repeater.
 |
Tech808
Moderator
Username: Tech808
Post Number: 4082
Registered: 8-2002
| | Posted on Saturday, November 13, 2004 - 12:03 pm: |
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Silly question here but is the 444.8375+ and 444.7250+ still working and the Troy repeater 442.9750.
I always talked with people when delivering over there on all 3 of them.
Just wondering.
Lon
CEF808
Tech808
N9OSN |
spacedude (Unregistered Guest)
Unregistered guest
| | Posted on Monday, November 15, 2004 - 8:34 am: |
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Agaim I dont understand why this question is getting alot of FCC legal answers. He didnt ask if was legal he just wanted to see of it was possible. Why is it that the samr people that give the FCC answers are the same ones that talk about thier BIG export radios and amps?
Just the answer to the question and keep the FCC stuff out of it
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Bruce
Senior Member
Username: Bruce
Post Number: 1764
Registered: 9-2003
| | Posted on Monday, November 15, 2004 - 9:50 am: |
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Spacedude ...
There are lots of 10 meter repeaters Lissen 29.600 to 29.690 and im a user of them. Can it be done on CB? SHURE it can .... the problem would be a band plan that would keep everyone off the input except thoes wanting to use the repeater. Is it LEAGAL NO sadly but ... again in MY OPINOIN the fcc missed a golden chance to realy make cb a much better band when they didnt allow skinny band fm in some of the "NEW" channels when they went from 23 to 40. Repeaters could have been incorpated into a bandplan by seting aside a block at 27.80-27.85 to be used with the 27.55-27.305 new channles fm only still allowing for ssb on the rest. Just like the 220 mhz class E cb wishfull thinking but would have been nice. |
Racer X (Unregistered Guest)
Unregistered guest
| | Posted on Monday, November 15, 2004 - 2:26 pm: |
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Spacedude - the question of whether or not it's possible is rhetorical - of course it is - it's been done on 10 meters for decades. His question was how to set one up. If he didn't know the basics about constructing a repeater, odds are he didn't know that it was frowned upon by the FCC. Thus the responces regarding the FCC's opinion. And then there was elaboration on the further difficulties of operating a repeater on and with CBs. It seems to be a logical progression to me.
Bruce - Narrowband FM really doesn't work that well at the power levels used in the crowded Citizen's Band - especially when AM and SSB are available. It has the shortest effective communication range of any popular phone mode. Allowing FM on the Citizen's Band would just further popularize the use of amplifiers to overcome the reduced range. Althought I admit that the capture effect would make it useful for channel 19 or other high use channels, I can't imagine the issues that would crop up with folks trying to get more modulation on FM!
I think it would be interesting if the FCC would allow a new service to be used on the 49MHz frequencies used for cordless phones and baby monitors. Most cordless phones and other devices that once used this portion of the spectrum have long ago moved to another and it's largely usused - at least in my area. FM would work just fine there. Keep the power levels low and it would be a great short range communication tool.
I think that the best option the FCC had for expansion expansion from 24-40 was SSB only. It would have opened up the use of SSB for the more serious operator without the interruption of drivers and others polluting the spectrum with carriers. Unfortunately this didn't happen. |
Bruce
Senior Member
Username: Bruce
Post Number: 1767
Registered: 9-2003
| | Posted on Monday, November 15, 2004 - 6:28 pm: |
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Racer X
I run 4 watts on 10 meter fm all the time and it works fine. I never said it was a better mode that SSb or even am since im well aware it is very limited due to phase distortion when using skip.
There would be no chance of CB getting 49 mhz since there are still many phones in use and you already have MURS which im a user on ( 151.820 ).
As for SSB only not a chance since the manufactures were bent on outlawing 23 ch radios which they did and selling the same or nearly same radio with 40 ch in it and keeping the prices down to retain as much sales as they could in a over sold market ..... remember as soon as 40 was anounced the prices on 23 ch sets got down to under 20 bucks. As for serious operators the idea they would shair 17 new channels with MILLIONS of new users makes no sence since even them they were on 27.55.
I like FM as a mode problems aside and abuse aside its very good for moble work .... no doubt SSB is many DB better watt for watt. Am will never die on the cb band its simplicy of use will always have a following. MURS was as close as cb will see to more channles TOO BAD IT IS SO LIGHTLY USED since my base to car will go 10-13 miles with 2 LEAGAL radios and with a beam at the house ( 4 elm ) i have got almost 20. |
That Elco guy (Unregistered Guest)
Unregistered guest
| | Posted on Monday, November 15, 2004 - 6:59 pm: |
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Re Bruce...
Hi guy..
Other than the actual price of the modern repeater system, another problem that the CB band has not factored in is that of repeater frequencies registration and coordination, the asignment of required PL tones and of the filing of area of average coverage. In short Repeater Coordination. More importantly will the CBers voluntarily agree to abide by the coordinators. They are a pretty independant minded group. Goodness knows if we in the ham bands/2 meters/ did not have coordination the 2 meter band would be much much much more chatoic than it already is.
Later guy
That Elco Guy |
Racer X (Unregistered Guest)
Unregistered guest
| | Posted on Monday, November 15, 2004 - 7:42 pm: |
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True - Fm certainly works as proven by all of the 2m activity across the country. I can't help but think that if it was really suited to HF use then there would be a much greater use of 10m repeaters.
I agree with 49MHz never going to a citizen's band use, but it would be perfect. Base and mobile antenna would be smaller and more efficient. There were some decent 49MHz handhelds out there before FRS came along, but they seem to have gone away now.
MURS pretty much fills the bill, has smaller antennas, and is less likely to cause a problem with TV. Unfortunately the radios made for MURS are still awfully expensive at present. Business band radios aren't made to the deviation specs of all of the MURS frequencies, so I'm not interested in going that way at present. They're also far too powerful. I'd like a nice and cheap CB style radio that does both AM (I believe AM is a permitted emission type) and FM with the deviation and power specs the FCC set forth. Then I'd be happy to play with the service.
Funny, with all of the unlicensed use in my area before MURS was created, there doesn't seem to be any more activity now that it's legal to use license free. |
Bruce
Senior Member
Username: Bruce
Post Number: 1768
Registered: 9-2003
| | Posted on Monday, November 15, 2004 - 11:17 pm: |
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FM IS MY MODE ......
Ive been on FM since 1969 and always have at least some band on here at the house. 10/11 meter repeaters like was brough out would require the users to follow the bandplan and rules ..... no freebanding on inputs.
The problem is antenna size not the mode. Towing around a 9 foot wip on your handleld is just a bit too much.
6 is only a bit better I'm one of only a few nuts enough to carry a 6 meter ht and ive got 2 of them and just sold a 3rd.
10 meters moble DR-m03 alinco on fm works as well as 2 meters as long as you use a full size wip short wips dont cut it i back it up with a home made amp class c only and the amp delivers 300+ watts at 29.600 right now i cant run it .... got a new car and have to run a heavy wire and just have not had time and on 6 meters my dr-m06 back up with a 120 watt amp also works well again the amps are not in the car at this time now since a wip is only 55 inches a 1/4 wave wip not a problem. For almost 10 years i had the largo WR4ANA (52.55 53.55 ) repeater but it went off the air in the early 80's when my wife and my self moved. Fm is NO GOOD for DX phase distorsion will kill you but a well thought out system with noise blanking i have found is as good as AM and much quiter.
MURS has received VERY little support VERY SADLY..... its a 2 watt 2 meters there for all cb'er to use and using my dimond 9 db ( clone ) i get coverage over a 7-10 mile path..... the 4 elm beam at 40 foot did almost 20 miles .... not too shabby. My moble is a Radio shack and the wip is a hustler 144 mhz 5.2 db gain 7 footer cut a bit to 151 mhz it realy makes this radio work. |
Geekster
Intermediate Member
Username: Geekster
Post Number: 123
Registered: 6-2004
| | Posted on Wednesday, November 17, 2004 - 12:38 pm: |
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[quote]Silly question here but is the 444.8375+ and 444.7250+ still working and the Troy repeater 442.9750.
I always talked with people when delivering over there on all 3 of them.
Just wondering.
Lon
[/quote]
As far as I know these are not up. I think they were moved but I may know the guy that owns them. I can ask. I have plans later much later next year for a 440 repeater of my own if funds allow. And yes echolinked at times. |
AE336deathcharger (Unregistered Guest)
Unregistered guest
| | Posted on Saturday, November 20, 2004 - 11:36 pm: |
|
i like this idea of the squelch operated keyer. i got a radshack vhf thanks to bruce that im lookin to put into service in a different manner |
Bruce
Senior Member
Username: Bruce
Post Number: 1783
Registered: 9-2003
| | Posted on Sunday, November 21, 2004 - 12:52 pm: |
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FM only 10 meter radios are rare My DR-m03 10 meter fm radio will receive28-29.7 it only runs about 7 watts i use it moble and with many memories and tone and offsets it will work any repeaters outhere kinda neet radio |
Racer X (Unregistered Guest)
Unregistered guest
| | Posted on Sunday, November 21, 2004 - 3:02 pm: |
|
Azden was the only 10M FM radio for a long time and never saw much volume. They also made 6m FM gear when noone else was bothering. From what I understand their radios were very well made and met mil-spec for something or other. They eventually dropped making amateur radios altogether because they didn't see much volume. It's cool that Alinco is trying to make a niche product. I have some Alinco 2m gear with "band scope" and I like it a lot. |
Bruce
Senior Member
Username: Bruce
Post Number: 1785
Registered: 9-2003
| | Posted on Sunday, November 21, 2004 - 7:11 pm: |
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I have 2 dr-m03's a dr-m06 and a dr-140 love them the dr-m03 is discontinued ....
|
AE336deathcharger (Unregistered Guest)
Unregistered guest
| | Posted on Tuesday, December 14, 2004 - 2:38 pm: |
|
"I made a simple CB repeater from a TRC-422 and a 25 watt marine radio. The basic key is the carrier operated relays. Each radios squelch circuit must be wired to drive small transistor such as a 2N2222A that will fire the relay coil when the squelch opens to key the oposite transmitter. It is important that a VHF FM radio is used with the CB so it will not cause interference to the CB when the FM transmitter is keyed. I chose the Realistic TRC-422 radio as the CB because it had good selectivity and a hyterisis squelch circuit that was very forgiving in it's setting. I used a 5 min. timer triggered off the squelch of the VHF radio so that when it detected my input FM signal it turned the repeater on for 5 min. In the event the the CB squelch was held open for 5 min. the repeater would shut down until the FM signal was detected again. This repeater allowed me to access my base station signal from my car within 20 miles and from a hand held within 5 miles. The AM power could be run at 100 watts without affecting the FM receiver."
hey shockwave, pls email me at diy_till_i_die@hotmail.com. i like this idea a lot |
