[Repeater-Builder] Re: 2 Meter Repeater Duplexer . . .
Hi Larry and all, There is a problem. Can you try again please and this time send your email at my gmail account. (k6irf73) @ (gmail.com) 73! tnx guys! Lot / k6irf --- In Repeater-Builder@yahoogroups.com, larryjspamme...@... lar...@... wrote: Hi Lot - no emails received from you at any of my email addresses, home or work. Also, you seem to be having a problem receiving them, even from different sources. I don't know what to tell you... Larry -Original Message- From: Lot Sent: Apr 7, 2010 10:25 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 2 Meter Repeater Duplexer . . . Hi! Thanks to all who provided information on the duplexer. Larry, I sent you an email but not sure if it went through. We are interested to know about the duplexer. Please send me an email when you get the chance. (k6...@...) Thanks! Lot / k6irf
Re: [Repeater-Builder] Re: 2 Meter Repeater Duplexer . . .
Hi Lot - no emails received from you at any of my email addresses, home or work. Also, you seem to be having a problem receiving them, even from different sources. I don't know what to tell you... Larry -Original Message- From: Lot Sent: Apr 7, 2010 10:25 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 2 Meter Repeater Duplexer . . . Hi! Thanks to all who provided information on the duplexer. Larry, I sent you an email but not sure if it went through. We are interested to know about the duplexer. Please send me an email when you get the chance. (k6...@yahoo.com) Thanks! Lot / k6irf
[Repeater-Builder] Re: 2 Meter Repeater Duplexer . . .
Hi! Thanks to all who provided information on the duplexer. Larry, I sent you an email but not sure if it went through. We are interested to know about the duplexer. Please send me an email when you get the chance. (k6...@yahoo.com) Thanks! Lot / k6irf
[Repeater-Builder] Re: 2 Meter Repeater Duplexer . . .
Lot, The specification sheet for this duplexer shows 70 db of isolation. That may not quite be enough. I have a Q2330E which Sinclair claims 85 db of isolation. I was able to carefully tune the duplexer to obtain 91 db of isolation at 147.280/147.880. With a 75 Watt Micor repeater station and factory Motorola preamp I have no measurable desense. When I tried a ARR preamp I had 2.5 - 3 db of densense, so went to the factory Micor preamp which has a little less gain. I much prefer to sacrifice a little sensitivity to eliminate densense. I am not all that familiar with what your VXR repeater needs for isolation but I think 70 db is going to be a problem even if you run pretty low power. You could also add some additional cavities between the transmitter and receiver ports to the duplexer to increase your overall isolation. Good Luck, Joe - WA7JAW --- In Repeater-Builder@yahoogroups.com, Lot k6...@... wrote: Hi Everyone, We are setting up a project in Manila and would like to ask some help with information about a good repeater duplexer. I saw one in Ebay, (Sinclair Q2220E VHF BpBr Repeater Duplexer). Is this a good type of duplexer and would work on a typical repeater setup? We will use it on a VXR7000. The Repeater Frequency will be at 144.880 - 0.600. Any information will be very much appreciated. Thanks! Lot / k6irf
[Repeater-Builder] Re: 2 Meter Repeater Duplexer . . .
Larry, Your message came through blank. Might want to try again. Your 6 can Wacom or one of those other ones you just picked up would work much better for him if you still have one available. Joe
[Repeater-Builder] Re: 2 meter repeater
Thanks for the tip on screwing the sections together. I am not a real fan of the clamps on an antenna myself. When I out up the HF tri-band, I used the clamps and not regretting it. 73 John, W3ML
Re: [Repeater-Builder] Re: 2 meter repeater
G7 - 144 Interest--- I've had a G7-144 on top of a hospital here for more years than I can figure and all was good until it went bad a few years ago. Corrosion was the problem evidenced by severe desense. On transmit, the corrosion was rectifying and producing wide band noise enough that the repeater receiver saw it as a desensing signal. The interesting thing was that input signals were desensed without additional noise being apparent in the repeater receiver audio. Anyway---The fix I used was to clean and severely scratch up all the metal to metal joints in the antenna and reassemble using liberal amounts of the corrosion preventive goop sold for aluminum electrical connections---Home Depoe and the like all sell it. Then, I ran self tapping screws through all of the aluminum slip joints rather than use the original hose clamps and then I put a couple of layers of high grade heat shrink tubing over all the joints. Oh, and I put sharp burr washers between all of the threaded together pieces too. This was 5 or 6 years ago and the antenna continues to work fine. Scott, N6NXI - Original Message - From: John Poindexter To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 02, 2009 9:11 AM Subject: [Repeater-Builder] Re: 2 meter repeater Thanks for the tip on screwing the sections together. I am not a real fan of the clamps on an antenna myself. When I out up the HF tri-band, I used the clamps and not regretting it. 73 John, W3ML -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date: 06/02/09 06:47:00
[Repeater-Builder] Re: 2 Meter Repeater Antenna Suggestions
Tim, I just purchased a pair of Morad antennas for our club's repeater. they are very similar in size to a super station master, right around 21 feet in length. They make a 156 cut antenna for use on the fishing boats up in the Bering Sea and make a 146 cut antenna for amateur repeater use. Same construction for both antennas. We are replacing our 18 year old ones we originally bought in 1980. They are on a 300 foot tower that is right next to the ocean and catches pretty steady constant wind and sea year around. Nothing wrong with the current Morad's that have been up for 18 years, but we feel we have gotten our money out of them. We paid a little less than $500 each for them a couple moths ago. Joe - WA7JAW --- In Repeater-Builder@yahoogroups.com, Tim Osborne radio1...@... wrote: OK not to open a can of stinky worms..but... I need to buy a NEW 2 Meter Repeater Antenna. I am asking for suggestions. I have heard bad things about the now across the boarder assembled Andrew/DB Prod. Antennas. The 139-150 Split version is available and in stock from Tessco List is $730.00. (and yes I know it can be bought a lot cheaper) And please no suggestions about Diamond or any of the HAM made antennas. These are very poor Repeater Antennas and will not stand up to Mountain top ice and wind. Not to mention their poor performance and noisy Duplex operation. Thanks and 73 Tim K4TDO
RE: [Repeater-Builder] Re: 2 meter repeater
_ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dave VanHorn Sent: Friday, January 26, 2007 3:21 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 2 meter repeater --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, IF YOUR NICE I MAY TELL YOU [EMAIL PROTECTED] wrote: Hi all another question do you need 1 0r 2 antenna's on a repeater. Thanks Yes! You can do it either way, but MOST systems use one antenna and a rather expensive device called a duplexer which separates the transmit and receive into two separate feedlines. Dual antennas can be done, but you need a lot of physical separation to make that work. It is usually cheaper to use one antenna. If you use 2 antennas you will usually also need some cavities in both the receiver and transmitter lines to get enough isolation. A duplexer may be a little more cost than a couple of cavities but then there is also the cost of the second antenna and feed line. 73 Gary K4FMX
[Repeater-Builder] Re: 2 meter repeater
--- In Repeater-Builder@yahoogroups.com, IF YOUR NICE I MAY TELL YOU [EMAIL PROTECTED] wrote: Hi all another question do you need 1 0r 2 antenna's on a repeater. Thanks Yes! You can do it either way, but MOST systems use one antenna and a rather expensive device called a duplexer which separates the transmit and receive into two separate feedlines. Dual antennas can be done, but you need a lot of physical separation to make that work.
[Repeater-Builder] Re: 2 meter repeater
--- In Repeater-Builder@yahoogroups.com, Chuck Kelsey [EMAIL PROTECTED] wrote: Tell us how much money you expect to spend and the group can tell you what you may be able to get for that amount. Chuck - I'll try to give you some details and cost. 2@ Icom F-121, cables, setup and tuned New - $ 750. 1@ Repeater Controller NHRC 3+ $ 200. 1set 4 tube - Tel-wave used Duplexer - $ 850. 1 @ 2 meter dipole stick $ 75. Tech charges to re-tune Telewave Duplexer - $ 175. 65' LMR400 - antenna mast - gable end mount - Lighting arrestor, ground 4@ rods, clamps and ground conductor # 4 bare. Misc. $ 450. That totals about $ 2,500. for mostly new gear. Note: the total cost is over 4 times the cost of the repeater - which is what most people get hung up on. If all the gear isn't of good quality and compatible your results will be poor. When setting up a 2 meter repeater the actual repeater and good quality properly tuned duplexer make or break the system. The cheap duplexers from the far east don't get the job done. If your need is for an inexpensive repeater I suggest you look in to the .70 centimeter equipment as it can be done for a third the cost of a well equipped and setup 2 meter rig Good Luck EasyLyle K4tg0 WQCM810
Re: [Repeater-Builder] Re: 2 meter repeater
I wasn't the one looking, but the guy that was now has the info you posted. The original poster simply said he was looking for a repeater, cheap, then gave no other details of what he was really looking for. Chuck WB2EDV - Original Message - From: Lyle Schultz [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, January 26, 2007 8:56 AM Subject: [Repeater-Builder] Re: 2 meter repeater --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey [EMAIL PROTECTED] wrote: Tell us how much money you expect to spend and the group can tell you what you may be able to get for that amount. Chuck - I'll try to give you some details and cost. 2@ Icom F-121, cables, setup and tuned New - $ 750. 1@ Repeater Controller NHRC 3+ $ 200. 1set 4 tube - Tel-wave used Duplexer - $ 850. 1 @ 2 meter dipole stick $ 75. Tech charges to re-tune Telewave Duplexer - $ 175. 65' LMR400 - antenna mast - gable end mount - Lighting arrestor, ground 4@ rods, clamps and ground conductor # 4 bare. Misc. $ 450. That totals about $ 2,500. for mostly new gear. Note: the total cost is over 4 times the cost of the repeater - which is what most people get hung up on. If all the gear isn't of good quality and compatible your results will be poor. When setting up a 2 meter repeater the actual repeater and good quality properly tuned duplexer make or break the system. The cheap duplexers from the far east don't get the job done. If your need is for an inexpensive repeater I suggest you look in to the .70 centimeter equipment as it can be done for a third the cost of a well equipped and setup 2 meter rig Good Luck EasyLyle K4tg0 WQCM810 Yahoo! Groups Links
[Repeater-Builder] Re: 2 meter repeater
Tell us how much money you expect to spend and the group can tell you what you may be able to get for that amount. Works a good percentage of the time, but... As many of us know it's quite possible to put a very cost effective repeater on the air for very modest money. And the converse story is the radio club I just dealt with that didn't want anything but a brand new commercial repeater donated. Even though their club repeater is off they air go figure. cheers, s. Hi does anyone have a used 2 meter repeater for sale cheap. I am trying to set one up but this is all new to me.I have read several books but of course they all are different on how to set up.Im not sure what piece's i need any help appreciated.
[Repeater-Builder] Re: 2 meter repeater
On the cheap side, we just built a 440 repeater for about $500. The tower space/hardline/antenna were already available, so we just had to build the repeater and plug it in. The repeater was a GE-Exec II base station off from e-bay for $100. The built in power supply can run the unit at about 20 watts. The elements were re-crystaled for $50. A new controller was $250. We used a mobile duplexer (used) from e-bay for $75. You could probably shave a few bucks here and there and get the total cost down a little. The controller was purchased for the level of features that we wanted. You could certainly pay less and get less features. There are controllers for around $50 that will give you bare bones repeater functions. On the opposite end, you could spend $1000 (or more) for a controller. If you needed more RF power, a 100-watt amp will run about $300 (used) and an Astron power supply will go for about $150. The mobile duplexer is only good for about 40 or 50 watts, so you will also need to upgrade to a higher power one as well. Used UHF duplexers on e-bay will go in the $300 to $400 range ($500 to $600 for VHF). So a low-end repeater could be in the $400 to $500 range and a higher power/ better controller could be in the $1500 range. Of course, buying everything new and commercial could get you up even higher than that (much higher). Dwayne Kincaid WD8OYG Works a good percentage of the time, but... As many of us know it's quite possible to put a very cost effective repeater on the air for very modest money. And the converse story is the radio club I just dealt with that didn't want anything but a brand new commercial repeater donated. Even though their club repeater is off they air go figure. cheers, s. Hi does anyone have a used 2 meter repeater for sale cheap. I am trying to set one up but this is all new to me.I have read several books but of course they all are different on how to set up.Im not sure what piece's i need any help appreciated.
Re: [Repeater-Builder] Re: 2 meter repeater
Okay. Thanks a million. Keane --- Coy Hilton [EMAIL PROTECTED] wrote: HI Ken, 1.2 and 2.4 GHz and 902 MHz are in the UHF band and all are available to you and you are right, 440 might be the easiest to get on. 220 isn't used very often in some areas and a duplexer is real big AND real expensive for 6 meters. Good Luck! --- In Repeater-Builder@yahoogroups.com, Ken wlter [EMAIL PROTECTED] wrote: I'm a tech, so I will not be able to do it on any hf. Mabey on 440 or 220, or 6 meter. But thanks for the info. 73's, Keane KD8AOZ 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: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: 2 meter repeater
HI Ken, 1.2 and 2.4 GHz and 902 MHz are in the UHF band and all are available to you and you are right, 440 might be the easiest to get on. 220 isn't used very often in some areas and a duplexer is real big AND real expensive for 6 meters. Good Luck! --- In Repeater-Builder@yahoogroups.com, Ken wlter [EMAIL PROTECTED] wrote: I'm a tech, so I will not be able to do it on any hf. Mabey on 440 or 220, or 6 meter. But thanks for the info. 73's, Keane KD8AOZ --- STeve Andre' [EMAIL PROTECTED] wrote: On Wednesday 30 March 2005 19:31, ken_wlter wrote: I would like to put a repeter up in the Ann Arbor, MI area. What would be a good way to start? Thanks! kd8aoz Others have indicated that you need to talk with marc about getting a coordination. I seriously doubt that you are going to get one on 2m. 2m is overpopulated with repeaters. Why not create one at 1.2GHz, where real innovation can be done? Or 902, or 2.4GHz, or ... --STeve Andre' wb8wsf (ann arbor, mich) Yahoo! Groups Links [EMAIL PROTECTED] __ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo 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: http://docs.yahoo.com/info/terms/
