RE: [Repeater-Builder] Seeking emergency system design help
Rudy, this may not be what you would like to hear but. You can get off the shelf type accepted UHF narrow band P25 dual mode repeaters and the associated equipment that would be type accepted. You would need to get it coordinated for the normal usage location and then if you had a 911 type event you would be able to temporarily move it to the new location and file for a modification. The equipment will not be cheap and if your employer is just looking at cost because the amateur Dstar equipment is cheaper they will find out that since it is not type accepted and they get caught using it the fines issued will more than make up for what they saved. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of rudy_n2wq Sent: Thursday, August 26, 2010 12:09 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Seeking emergency system design help Hello, I am looking for some advice or even a systems integrator who can help me design and implement an emergency communication system for my employer, using an off-the-shelf repeater and radios. My current thinking is to use D-Star radios and a D-star repeater, modified to work on non-amateur frequencies. Since the radios will be in Manhattan, the idea is to place the repeater in our Newark, NJ office and use directional antennas for the repeater. We are trying to prepare for the possibility of the entire building being damaged and thus the idea to move the repeater across the river. 73, Rudy N2WQ
RE: [Repeater-Builder] Unknown uvhf antenna
Have you tried to resonate it at 27 MHz? From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Ian Wells Sent: Monday, August 23, 2010 10:50 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Unknowen uvhf antenna Hi guys .I have a client that has a marine antenna that is suppose to be a VHF 156mhz antenna but it is showing up as mega high swr From the base to the coil above is 115mm .the center wire finishes just above the spiral wrap (picture on the left )and is 90mm long and the spring is connected to the braid under the brass crimp and extends in the picture in the right 950mm long.Can anyone identify the type so we may check the lengths to see why the swr is over 3.1 when the manufacturers specs should be 1.2 Thank You ,Ian Wells Kerinvale Comaudio, 3A Murchison Street, Biloela.4715 Ph 0749922449 Mb 0409159932 Hm 0749922574 Fx 0749922767 www.kerinvalecomaudio.com.au http://www.kerinvalecomaudio.com.au/ image002.jpgimage004.jpg
RE: [Repeater-Builder] Mastr II drift problem
Did you just buy the crystals and insert them in the ICOMs or did you send them in to the crystal MFG to be compensated. If you did them yourself the compensation is probably now messed up. The best way to fix it is to send them in to the crystal MFG for compensation. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of steve Sent: Tuesday, August 03, 2010 5:33 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Mastr II drift problem Hello all, I have having a severe drift problem on my GE Mastr II 2 meter repeater. The transmit freq will drift nearly 2 KHZ over a 5-10 minute period. I have changed exciters and used a different ICOM but no improvement. The building that I am in is not ventilated and is very very hot. I put a high/low thermometer in and one day the high temp in the building was 114 degrees. Is this the problem? Thanks for any help. Steve W4SEF
RE: [Repeater-Builder] Re: Mastr II drift problem
Next thing look at the comp voltage going to the tcxo it comes off of the 10v reg card. Have you checked or swapped it yet? From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of steve Sent: Tuesday, August 03, 2010 8:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Mastr II drift problem Hi Stan, Yes I sent the crystals to International. I have 3 fans running full time on the heat sink. Thanks for any help! Steve --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Stanley Stanukinos ka5...@... wrote: Did you just buy the crystals and insert them in the ICOMs or did you send them in to the crystal MFG to be compensated. If you did them yourself the compensation is probably now messed up. The best way to fix it is to send them in to the crystal MFG for compensation. Stan From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of steve Sent: Tuesday, August 03, 2010 5:33 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Mastr II drift problem Hello all, I have having a severe drift problem on my GE Mastr II 2 meter repeater. The transmit freq will drift nearly 2 KHZ over a 5-10 minute period. I have changed exciters and used a different ICOM but no improvement. The building that I am in is not ventilated and is very very hot. I put a high/low thermometer in and one day the high temp in the building was 114 degrees. Is this the problem? Thanks for any help. Steve W4SEF
RE: [Repeater-Builder] DSP404 beta 5.18 released
It looks like a kernel update and some cleanup. The notes are buried in the Wiki. I posted to the DSP reflector but it appears that the post are moderated as it has not shown up. Alan, Steve, or Matt will probably let us know next week. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tim Sawyer Sent: Saturday, July 31, 2010 10:31 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] DSP404 beta 5.18 released I didn't seen any release notes on Linkcomm's site. What's new in this release? -- Tim :wq On Jul 31, 2010, at 7:27 PM, Stanley Stanukinos wrote: Those of you that are running the Link DSP404 a Beta release is out version 5.18. I have loaded it on my controller and so far so good. The fist bug is in the comm. Set up.. I am running Vista business on a laptop with a real serial port and it does not show or allow the com port to be selected, however it still works on com 1. The first time I selected T on the left side I received a memory error but have not been able to reproduce it. I also have seen some stuttering in the audio between the controller and the laptop I am using on the local network. The controller is connected directly to the wireless router and I am connecting wirelessly with the laptop. So there may be more issues around or just my setup. Stan
[Repeater-Builder] DSP404 beta 5.18 released
Those of you that are running the Link DSP404 a Beta release is out version 5.18. I have loaded it on my controller and so far so good. The fist bug is in the comm. Set up.. I am running Vista business on a laptop with a real serial port and it does not show or allow the com port to be selected, however it still works on com 1. The first time I selected T on the left side I received a memory error but have not been able to reproduce it. I also have seen some stuttering in the audio between the controller and the laptop I am using on the local network. The controller is connected directly to the wireless router and I am connecting wirelessly with the laptop. So there may be more issues around or just my setup. Stan
RE: [Repeater-Builder] Re: Advice on 40 year old radio tower
Looking at the pictures you have shown, I would not try and reuse the existing tower. It has rust and shows a lack of maintenance by the trees in the guy wires as well as the vines growing up from the base. If the funds were available to get the property and erect a new tower where you could keep the area clean you look to have a pretty good site. Do you know what the coverage area is at its current height? Also it looks to me that the electrical is underground as I did not see a pole nearby so you may have issues there as well. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of dgrapach Sent: Wednesday, June 02, 2010 10:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Advice on 40 year old radio tower The pictures are here of the tower. http://s903.photobucket.com/albums/ac231/dgrapach/Old%20tower/Old%20Tower/ --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , dgrapach dgrap...@... wrote: Very true,this tower had it's guy wires in the woods under the trees, the site was abandon for years. Where and how do I find an engineer to inspect it. I am in Indiana county pa. Is it feasible to change guy wires, do they recomemd it? --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Richard W. Solomon w1ksz@ wrote: Tower location is an important piece of the equation. Big difference between the East Coast and the Sonoran Desert !! 73, Dick, W1KSZ -Original Message- From: dgrapach dgrapach@ Sent: Jun 2, 2010 9:27 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Advice on 40 year old radio tower I need advice on using an old radio tower. It looks like to be the size of a 45G, the cross bars are bolted on instead of welded. The tower looks as if it is ok, light surface rust, bolts look ok on the outside, of course can't see inside. Heavy rust and pitting on several guy wires, guys are in amoung the trees, the location needs cleared, tower height 150 feet. Any one have experance on this type of tower? How much rust is aceptable on a gut wire? How do you decide on the safety on an old tower like this? What is the differance between guy wire and cable used as a guy wire? So many questions... Thanks for any help. Denny Yahoo! Groups Links
RE: [Repeater-Builder] is a repeater needed
Lane, what frequency are you trying to go on'? Houston has a waiting list for VHF and UHF is pretty full. I think if you look around Houston proper is covered fairly well. Look at the www.txvhffm.org web site. You can do search's there. If you would like to set up and play there are several UHF back yard repeater pairs you can coordinate on. Try making contacts on the repeaters in your area to check their coverage and usage. You may find that Houston has extremely good coverage. If you really want something up on the air try 900 or 1.2 Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Lane Sent: Friday, May 28, 2010 3:02 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] is a repeater needed Hi all, I've been interested in building a repeater for a while now, but before I do, I guess the first step is in knowing whether or not a repeater is needed for my area. I live in Houston and have an excellent area for putting up a repeater *if* one is needed, but how do I go about finding out if one would be useful to others and on what frequencies. There are lots of repeaters here in Houston and I'd hate to saturate or further complicate anything if that would be the case. Any help, suggestions, advice much appreciated.
RE: [Repeater-Builder] Off-Topic: Shop liability insurance
Scott, I am confused? Do they mean liability insurance for the product you are installing or a general liability policy for when you are doing work on their property? If it is for the product you are installing I would push back and try to find out what they are talking about. It may be someone in their purchasing department has gone off the rocker and misinterpreted a directive. Stan -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Wednesday, May 19, 2010 4:04 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Off-Topic: Shop liability insurance For those that are on the list that own their own two-way shop: Who do you use for a liability carrier and what is your typical monthly/yearly premium? I have a customer I have been dealing with for about 8 years that has decided they won't do business with anyone that does not have liability insurance on the products they vend. It seems rather stupid to me, but I guess that's what happens when lawyers get involved. Input appreciated. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 Yahoo! Groups Links
RE: [Repeater-Builder] Off-Topic: Shop liability insurance
I concur with some of the other response's you have received so far. I would inform them that it has been nice doing business with them but their requirement to have liability insurance for a product sold to them IE. A radio or part covered under the manufactures warranty will be all that they will receive as this is not a standard business practice and if they still insist on it they can be told ok here is the yearly fee to do business with my shop and pass the direct cost of the insurance on to them with whatever labor overhead cost you have to process the insurance. They may find out that they will not be able to even get a bolt to make their product from others as well. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Wednesday, May 19, 2010 4:42 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Off-Topic: Shop liability insurance Well... They claim they want product liability insurance for any products received on property. Not just installed, but SOLD!! I talked with one of the purchasing agents and they said they can no longer go out and buy a box of bolts at the local hardware store and use those in the manufacturing process since the vendor of those bolts won't insure them. I think they are trying to limit THEIR liability by being able to pass the blame onto their vendors. Quite frankly I don't see how a portable radio could be a liability issue, but I'm a technician, not a lawyer. At any rate, I was just trying to find out what the average sole proprietor pays for liability insurance. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 Stanley Stanukinos wrote: Scott, I am confused? Do they mean liability insurance for the product you are installing or a general liability policy for when you are doing work on their property? If it is for the product you are installing I would push back and try to find out what they are talking about. It may be someone in their purchasing department has gone off the rocker and misinterpreted a directive. Stan -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Scott Zimmerman Sent: Wednesday, May 19, 2010 4:04 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Off-Topic: Shop liability insurance For those that are on the list that own their own two-way shop: Who do you use for a liability carrier and what is your typical monthly/yearly premium? I have a customer I have been dealing with for about 8 years that has decided they won't do business with anyone that does not have liability insurance on the products they vend. It seems rather stupid to me, but I guess that's what happens when lawyers get involved. Input appreciated. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 Yahoo! Groups Links Yahoo! Groups Links
RE: [Repeater-Builder] CTCSS Encoder/Decoder
I must be missing something, there are several MFG of encoders/decoders still around. You are correct on the stability issue. You will find it much less frustrating to just buy off the shelf or get the one for your radio than trying to build one that is stable. Oh there is the cost of the new ones so that has to be figured in. Stan From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of James Sent: Thursday, May 06, 2010 9:36 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] CTCSS Encoder/Decoder Hi Guys, We have been experimenting with building CTCSS Units using the 567 Tone Chip and good components, i.e. Caps, multi turn pots etc. The stability is not good in my opinion. We will set it to 107.2 and the next time you check it is off enough to where it won't decode until it is re-tuned slightly. I am wondering what your experiences may have been with this CTCSS Chip. Many articles say they work well with the addition of a stable voltage regulator, so we added a five volt regulator, no difference in stability. Any comments and experiences with this and other chips would be appreciated. The availability of CTCSS Chips seems limited.
Re: [Repeater-Builder] Copper pipe rather than 2/0 copper wire
It has been brought up about the issue of solidering the joints. It is better to install your ground system in a professional manner. Should something happen and you do take a strike and some one or their equipmet is injured or damaged then the cost savings are not worth the liability. Just a thought if using copper pipe was an acceptabe way of grounding at a site would you not think that the professionals would be doing it as they are always looking to save a buck. Also the copper thiefs are going to love you for making it so easy to steal and sell since they will not have to remove the insulation from the copper to get the best price. Stan Sent from my iPhone On Mar 16, 2010, at 11:18 AM, David Jordan wa3...@comcast.net wrote: Strap meaning solid copper, not copper or silver tinned braid. However, one might argue that the copper tubing has an equal amount of surface area and is more robust than the thin copper strap being sold.. if you fold 3” wide copper strap into a piece of tubing you get a ¾” OD tube. So, does the inside surface count? If not then the strap is the clear winner with double the surface area. What a hoot, Dave Wa3gin From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gary Schafer Sent: Tuesday, March 16, 2010 11:59 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Copper pipe rather than 2/0 copper wire Copper strap is better as you get the benefit of both sides of the copper. 73 Gary K4FMX
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
When you have this repeater active what is it's duty cycle going to be? Also are you just going to use the truck to get it to the top of the hill and then drop off the package and retrieve it later? If this is the case have you thought about putting all of this on a trailer with a small crankup tower to extend the antenna a little higher up and then you could mount solar panels to the unit and charge/recharge the batteries all the time. Stan --- On Sat, 1/30/10, Tim Ahrens tahr...@swtexas.net wrote: From: Tim Ahrens tahr...@swtexas.net Subject: RE: [Repeater-Builder] Battery system for portable repeater (non solar) To: Repeater-Builder@yahoogroups.com Date: Saturday, January 30, 2010, 2:47 PM Hi Mike, We're using a Kenwood TKR-720. The price was right (we had it on hand), it's relatively compact, does what we need it to. Older technology, with the front panel controller, etc. You know of a way to reduce the current? Did remove the + from the audio amp got it down to 300ma, but also removed a voltage for the xmit control - could fix, but I think it would require the removal of the logic board to get at the traces. Understand about the generator, but that's one more 'messy' thing to check on our monthly checks, bad gas, gummy gas, carb problems, fuel leaks, etc. I know they have spark arrestors, but I can see us putting this thing on the side of a hill, and having some wild hog come along knock it over, putting the exhaust right on flammable grass, etc! That was an interesting article on a build it yourself alternator/charging system. That battery tender looks like it might fill the bill.. I'll check it out. Thanks again, Tim
Re: [Repeater-Builder] Question on portable repeaters
If you are serious about keeping it at 600KHz separation ten you will need to have real duplexors. You can get them in an enclosure with the three required connectors. The biggest issue other than their size will be possible de tuning when transporting. 440 is a better choice. Another option is to make a 440 repeater and connect it to a VHF simplex radio, this would allow you to put it at a remote location that is high and talk to all of the other users. You would also have a cross band repeater as well since a lot of people now have dual band hand held radios.. Stan --- On Thu, 10/8/09, Doug Bade k...@thebades.net wrote: From: Doug Bade k...@thebades.net Subject: Re: [Repeater-Builder] Question on portable repeaters To: Repeater-Builder@yahoogroups.com Date: Thursday, October 8, 2009, 8:04 AM Possible options ? I decided to poke around on the Bird TX/RX website and found this little guy ( relatively speaking :-) ) Probably more command post sized than SUV sized but hey.. how big is that SUV :-)??? http://birdtechnolo gies.thomasnet. com/item/ all-categories- duplexers- and-triplexers/ duplexers- 2/28-37-04c? seo=110 At 9.5 x 19 x 10.5 inches, COULD fit in a car.. It is rated at 65db at .5mhz so would be a bit better at .6mhz and as I recall many of the little mobile duplexers are typically 65db to 80db at bestso would be in the neighborhood of lowest useable isolation figures, depending on how quiet the TX is to start with. It looks like it gets to 70db at 1 mhz with less insertion loss so .6 mhz would likely be somewhere in between... if you do not mind the insertion loss... Assuming we could split, it at worst case, 10-20db of antenna isolation in a mobile environment might be possible, and/or some additional notching...all this may make a low power 2m portable duplexer plausible without filling a whole car:-) Our club uses a 300khz 6 can TX/RX for our 2M repeater that was rated at ~100db at 600khz.. but when we had it set up for 600khz spacing it yielded in excess of 120 db TX to RX as delivered from TX/RX. From a practical perspective small 2M duplexers seem to start at about 2Mhz split... but hey size is relative Doug KD8B Morning, We are looking at building a portable repeater for special even use. This will be mobile mounted and 2M. My questions is this: If we are using two radios (one for TX one for RX) then what does the antenna separation have to be for all of this to work? Planning on mounting this in a SUV so roof space can be adjusted if need be. Thanks Peter Dakota Summerhawk Laramie County ARES
Re: [Repeater-Builder] Re: Antenna SWR = Desense?
look at all your repeater sheilding and interconnect cables from repeater dto duplexer and those cables. you appear to be getting signal ingress through the recieve side somehow. I have had antenna on top of the repeater using a mag mount and not had problems. Good luck this is a tough problem to resolve. Stan --- On Wed, 9/2/09, tahrens301 tahr...@swtexas.net wrote: From: tahrens301 tahr...@swtexas.net Subject: [Repeater-Builder] Re: Antenna SWR = Desense? To: Repeater-Builder@yahoogroups.com Date: Wednesday, September 2, 2009, 11:56 AM Hi All, And the winner is. Door # 2. Put the 2 meter vertical up on the stick at the end of the hard line, the desense was worse! Perfect match at the feed line end. Took dummy load put on far end of hard line no desense. Guess it is the proximity to the antenna. Although about 100', guess the RF is getting back into the box. Gonna set the antenna party for Friday morning. The stuff is going up on the tower (unless somebody can see some flaw in my logic can suggest another test)! Thanks again to all! Tim W5FN
Re: [Repeater-Builder] Re: Motorola MTR2000 Question
Here is the real question. What map datum was used for the GPS cordiantes? That may show where the descrepancy is in location. Chris, does the bus repeater cover a larger area than the PD or Maintanance repeaters? If so it will proably be located on a tower somewhere. If so there may be a utility bill or ret bill that is paid by the district office on it. This may take some research working with the person who pays the bills. Also the Direction finding should not be that hard, the biggest challange that you will have is aquiring the UHF directional antenna. It does not have to be a comercial antenna for what you are trying to do, perhaps one of the radio shops you are currently working with has one they would be willing ot loan you. From what I can tell you are in North East Texas so some of the people around there should be able to help. Stan --- On Thu, 8/13/09, Christopher Hodgdon chris.hodg...@kaufman-ares.org wrote: From: Christopher Hodgdon chris.hodg...@kaufman-ares.org Subject: [Repeater-Builder] Re: Motorola MTR2000 Question To: Repeater-Builder@yahoogroups.com Date: Thursday, August 13, 2009, 10:12 PM Our are located in Texas. The following is the 3 callsigns issued to the district and the frequencies they are paired to, according to the FCC ULS system: WPMR402 – FRN # 0001647460 – 451.750/456. 750 Primary Bus/Emergency Maintenance WPVZ977 – 158.385/173. 325 PD Frequency WPWW437 – 451.725/456. 725 Maintenance Only --- In Repeater-Builder@ yahoogroups. com, Maire-Radios maire-radios@ ... wrote: Just looked on the FCC data base and there are 2 school boards in Ca on the 725 freg. 0 on the 750. Need to check you paper work also. - Original Message - From: william...@. .. To: Repeater-Builder@ yahoogroups. com Sent: Thursday, August 13, 2009 10:36 PM Subject: Re: [Repeater-Builder] Re: Motorola MTR2000 Question I believe the MTR can only do one tone code at a time. bb In a message dated 8/13/2009 9:19:46 P.M. Central Daylight Time, maire-radios@ ... writes: how about one repeater but different tone codes? or the repeater is at some other location. John - Original Message - From: Christopher Hodgdon To: Repeater-Builder@ yahoogroups. com Sent: Thursday, August 13, 2009 8:43 PM Subject: [Repeater-Builder] Re: Motorola MTR2000 Question I wish I had a picture of the repeater house. The frequency listed on the MTR2000 is that of the schools maint. department. The other MTR2000, hook to the other antenna, is the Schools PD. I know those for a fact. Now its time to locate the other repeater system. The only odd ball thing I do know is that every once in a while, when a bus is talking to another bus or dispatch, you get a high squeal walk on over them, but its most likely another drive not paying attention and trying to key their radio. But I wonder if it might be the maint. since their frequency is so close to ours. --- In Repeater-Builder@ yahoogroups. com, Gary n6lrv@ wrote: The UHF repeater is likely mismarked or the frequency info you obtained for your school's license is inaccurate. The UHF repeater is likely the school's repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can only repeat on the channel it is left on. Recommend you find a dealer or tech experienced with the MTR and who has the software necessary to configure it. Have them download its codeplug. Recommend you do the same with your school radios. A comparison of the data will likely answer a lot. Gary -Original Message- From: Repeater-Builder@ yahoogroups. com [mailto:Repeater-Builder@ yahoogroups. com] On Behalf Of Christopher Hodgdon Sent: Thursday, August 13, 2009 4:29 PM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] Re: Motorola MTR2000 Question Here's the deal, I work for a local school district, I have been kind of thrust into a temp. communications specialist position while we obtain some new buses and working with the company that will be adding the new radios to them. Over the last few weeks, we have been trying to determine the location of our repeater. The place were it is listed on the FCC license paperwork does not exist. I know, I am pushing them to get it updated. But that is another story all together. I do have access to a radio house located at our high school football field and it has two MTR2000 in it, plus two different antennas. One connected to one radio and one connected to the other. One radio is marked with the description of KISD PD, which is our police department for the district and has the following frequency pair listed on it: VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331 The other radio is marked the following: UHF: 451.725 / 456.725 There is no documentation with this equipment, the person incharge of them originally left the district
Re: [Repeater-Builder] Sealing coaxial cable at the building entrance question.
If you can identify the MFG you should be able to get the boots that go over the cables on the outside and seal the hole. That should take care of your problem. --- On Fri, 8/14/09, wa5luy wa5...@cablelynx.com wrote: From: wa5luy wa5...@cablelynx.com Subject: [Repeater-Builder] Sealing coaxial cable at the building entrance question. To: Repeater-Builder@yahoogroups.com Date: Friday, August 14, 2009, 11:56 AM What is the best way to seal up the gaps around coax cable at the building cable entrance port? Our location has a panel with rubber knockouts. Some of the gaps are large. Unfortunately the original contractor that installed the cables did not leave a drip loop and after a heavy rain we get some water in the building. Also the gaps are easy access for bugs and mice. We have considered using Great Stuff foam insulation but are not sure if this is the thing to do. Suggestions appreciated. Wayne WA5LUY
Re: [Repeater-Builder] Need to pay someone to properly install repeater system in our school
As far as the ATT service goes you need to get to the Engineering department so that your repeater system for their serive can be approved. What city are you in? I may be able to get a contact for you. Stan From: rddow...@swbell.net rddow...@swbell.net To: Repeater-Builder@yahoogroups.com Sent: Thursday, July 23, 2009 1:09:21 PM Subject: [Repeater-Builder] Need to pay someone to properly install repeater system in our school We converted an old Kroger grocery store into a charter school. The building has metal roofing and lots of steel beams, making it very difficult to get a good signal on our Nextel and AtT cell phones. So far we have installed antennas and amplifiers, to no avail. We would like to pay someone to visit the school and make everything work. Any suggestions. R. Dale Dowell, CFO Focus Learning Academy
Re: [Repeater-Builder] LDF5-50a
In addition to the top and bottom, you should also do it every 200 ft as well. StanRick - VA3RZS/Charlotte - VA3CMR [EMAIL PROTECTED] wrote: Hello group I am looking for some grounding kits for the LDF5-50A 7/8 Andrews HeliaxI have one allready installed at the top of the coax and was told I should have one at the bottom also .. any comments on this ?I want to protect my Ant and repeater system the best I can .. the ant is a sinclair 4 bay (cant remember the model off hand)this ant is sid monted on the top of the tower ( 2 bays above the tower)Thanks for any and all help on this .. I am also running another line up the tower and need the kit for that also .. Also for LDF4-50A wich is 1/2 inch again thanks verry much .. RickRick Szajkowski VA3 RZSCharlotte Darby VA3 CMRNode Owners of IRLP Node 2120Lakefield Ont Canada-- No virus found in this outgoing message.Checked by AVG Anti-Virus.Version: 7.0.300 / Virus Database: 265.6.12 - Release Date: 1/14/2005Yahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to:[EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
