[Repeater-Builder] Removing Scotchkote - from the manufacturer
I sent the following request to 3M: What's the proper solvent for removing uncured Scotchkote electrical coating? What can be used to remove cured material from wires or other surfaces? Their reply is below. Hey, it's better than nothing. Thank you for contacting 3M. We don't make solvents to remove Scotchkote and any solvent that is used could damage whatever the Scotchkote is spilled on. For uncured Scotchkote, you might use MEK or Acetone. These solvents are in the uncured Scotchkote so might help to remove it. If it has cured, there isn't any product that we could suggest. Best Regards. 3M Electrical Markets Division Technical Support www.3m.com/electrical All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M's current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
Re: [Repeater-Builder] Re: Gmrs Repeater
Hello, I just wanted to add my 2 cents here. I have been working the last ... 2 years on building a GMRS repeater out of two Motorola Mitrek's and a single M controller. If I had one word of advice, buy a commercial one! Save yourself alot of frustration and money on the tools needed to build it. These have been looking real good to me recently: http://www.gmrsoutlet.com/home.php?cat=1 Regards, Richard Bessey wd8chl wrote: Gary wrote: CFR title 47 is available on the FCC's website for all to view. 95.135(a) reads No station may transmit with more than 50 watts output power. Subpart (d) reads A fixed station must transmit with no more than 15 watts output power. 95.25 further defines land stations. My suggestion to the anonymous member is to read the rules and contact the FCC for any needed clarification as they have the final word. Gary fixed station refers to what we would call 'control stations'. Repeaters and base stations can run 50W.
Re: [Repeater-Builder] Motorola radios on ham
Quick Robin, to the Batboard! _http://batboard.batlabs.com/viewtopic.php?f=1t=51387hilit=ht1550+out+of+ban d_ (http://batboard.batlabs.com/viewtopic.php?f=1t=51387hilit=ht1550+out+of+band) HT1550 XLS 450-527 Ham Mod Ok, here's the deal. First off, thanks to Rich KC9FNM my co-worker for figuring this out...I am just posting what he found and I confirmed works. Recently we bought some HT1550XLS's for the techs to useall of them 450-527.gr ! Rich informed me he was able to get his to do ham, and actually have halfway decent performance. First off you need the programming battery Program in your ham channels into the radio. Program in the alpha tag, and everything else BUT DO NOT CHANGE THE DEFAULT FREQ. Also be sure to check the box for field programming. Again, leave the default freq at 52x.xxx MHZ !!! Go into the radio configuration screen to the EDIT tab. Here's the magic.. follow carefully. Lower the upper band limit from 527 to like 470 MHZ THEN you can lower the LOWER limit from 450 to 442 or whatever. The trick is to lower the window . So you want to go a few mhz down, then lower the upper split down. be sure to lower the UPPER limit first Once you get a acceptable window, the INVALAD red colored freq will dissapper in the EDIT window. Nowwrite the codeplug to the radio.keeping in mind you have the default freq in you ham channels..this is okdont panic Now that your radio is written, go into the front panel edit mode and enter in your ham freq's and PL's by hand. It will now accept the ham freq's. I know it sounds odd, but it has worked with two HT1550's so far on the 450-527 split. I havent went far enough to play with the RSS as far as reading then re-writing and stuff. i dont know if you have to re do the mod. But y'all are welcome to try and let us know. Your mileage will vary.film at 11no warranty...as is where is and the usual legal disclaimers apply. So yea, you can take a 450-527 HT and make it do hamI got mine on the desk rigt now on ham, working just fine The rx sens is actually not too bad at all. As far as the CDM goescan't help ya there Again, credit goes to Rich KC9FNM for discovering this. I am just the author who cant spell too well The only negative thing I have discovered with the HT1550's is the internal mic audio totally sucks compared to a speaker mic. I just sent mine into the depot (the vol control was flaky) and also noted that the internal mic was too bassy. It came back with a new vol control, a firmware update and some part they replaced that wasnt named. Still seems bassy. Oh well. 73's and good luck, hope this helps someone Matt N3IVK[/b] In a message dated 1/21/2008 10:14:58 AM Central Standard Time, [EMAIL PROTECTED] writes: Is that published somewhere? Joe M. [EMAIL PROTECTED] (mailto:[EMAIL PROTECTED]) wrote: I have an HT1550 portable in the 450-512 split. There is a hack to let it operate on 440 frequencies, and it works. Unfortunately, it involves using field programming so that is the only model that will work. Hope that helps. **Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp0030002489
Re: [Repeater-Builder] Re: Gmrs Repeater
Where exactly do you find this in Part 95? Gary Tom Parker [EMAIL PROTECTED] wrote: A repeater is a mobile relay station, not a fixed station as defined in the rules. 50 watts is the limit. thp
Re: [Repeater-Builder] Re: Gmrs Repeater
We? Who else are speaking for? I've submitted this question to the FCC for clarification. We'll see what they say if they actually get back to me (they usually don't). Gary wd8chl [EMAIL PROTECTED] wrote: Gary wrote: CFR title 47 is available on the FCC's website for all to view. 95.135(a) reads No station may transmit with more than 50 watts output power. Subpart (d) reads A fixed station must transmit with no more than 15 watts output power. 95.25 further defines land stations. My suggestion to the anonymous member is to read the rules and contact the FCC for any needed clarification as they have the final word. Gary fixed station refers to what we would call 'control stations'. Repeaters and base stations can run 50W. Yahoo! Groups Links
Re: [Repeater-Builder] Re: Gmrs Repeater
Good idea Richard especially since Mitreks are wideband radios so making them meet the narrower GMRS specs is probably a monumental task. I wonder if a Mitrek can even meet the required frequency tolerance. Gary Richard Bessey [EMAIL PROTECTED] wrote: Hello, I just wanted to add my 2 cents here. I have been working the last ... 2 years on building a GMRS repeater out of two Motorola Mitrek's and a single M controller. If I had one word of advice, buy a commercial one! Save yourself alot of frustration and money on the tools needed to build it. These have been looking real good to me recently: http://www.gmrsoutlet.com/home.php?cat=1 Regards, Richard Bessey wd8chl wrote: Gary wrote: CFR title 47 is available on the FCC's website for all to view. 95.135(a) reads No station may transmit with more than 50 watts output power. Subpart (d) reads A fixed station must transmit with no more than 15 watts output power. 95.25 further defines land stations. My suggestion to the anonymous member is to read the rules and contact the FCC for any needed clarification as they have the final word. Gary fixed station refers to what we would call 'control stations'. Repeaters and base stations can run 50W. Yahoo! Groups Links
RE: [Repeater-Builder] Removing Scotchkote - from the manufacturer
Told us what we already knew! I just got an older 220 MHz DB antenna, before it goes up I will disassemble it and tighten all screws, nuts and terminals, reassemble it and goop with Scotchkoat before going up the tower. I have 8 antennas of my own on my tower and as of December of this year have been up there for 10 years with no problems. Also, I may add, the tower will be paid off in two months! There will be a celebration! Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bob M. Sent: Wednesday, January 23, 2008 6:48 AM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Removing Scotchkote - from the manufacturer I sent the following request to 3M: What's the proper solvent for removing uncured Scotchkote electrical coating? What can be used to remove cured material from wires or other surfaces? Their reply is below. Hey, it's better than nothing. Thank you for contacting 3M. We don't make solvents to remove Scotchkote and any solvent that is used could damage whatever the Scotchkote is spilled on. For uncured Scotchkote, you might use MEK or Acetone. These solvents are in the uncured Scotchkote so might help to remove it. If it has cured, there isn't any product that we could suggest. Best Regards. 3M Electrical Markets Division Technical Support www.3m.com/electrical All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M's current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs Yahoo! Groups Links No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * 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/
Re: [Repeater-Builder] Re: Gmrs Repeater
There is a fairly easy crystal filter swap kit available for the Mitreks from Communications Specialists for $25.00. And .0002% channel elements are also available (KXN1112A for RX, KXN1095A for TX - you really only need to meet the TX stability...) George, KA3HSW / WQGJ413 -Original Message- From: [EMAIL PROTECTED] Sent: Jan 23, 2008 9:16 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Gmrs Repeater Good idea Richard especially since Mitreks are wideband radios so making them meet the narrower GMRS specs is probably a monumental task. I wonder if a Mitrek can even meet the required frequency tolerance. Gary
Re: [Repeater-Builder] Re: Gmrs Repeater
There is a fairly easy crystal filter swap kit available for the Mitreks from Communications Specialists for $25.00. And .0002% channel elements are also available (KXN1112A for RX, KXN1095A for TX - you really only need to meet the TX stability...) George, KA3HSW / WQGJ413 -Original Message- From: [EMAIL PROTECTED] Sent: Jan 23, 2008 9:16 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Gmrs Repeater Good idea Richard especially since Mitreks are wideband radios so making them meet the narrower GMRS specs is probably a monumental task. I wonder if a Mitrek can even meet the required frequency tolerance. Gary
Re: [Repeater-Builder] Re: Gmrs Repeater
On Wed, 23 Jan 2008, George Henry wrote: There is a fairly easy crystal filter swap kit available for the Mitreks from Communications Specialists for $25.00. And .0002% channel elements are also available (KXN1112A for RX, KXN1095A for TX - you really only need to meet the TX stability...) Anyone got a source for the above? I have an MSR2000 that's in an unconditioned space I need a transmit and recieve element for. -- Kris Kirby, KE4AHR [EMAIL PROTECTED] But remember, with no superpowers comes no responsibility. --rly
[Repeater-Builder] Re: HELP - 3x Mitreks will Not Tune up for Repeater RX on 10mtrs.
Hello Kevin, It sounds to me like the Extender noise blanker is cutting back on your I.F. gain; it is probably set to your new L.O. frequency. In repeater service, you do not want to use the Extender. So make sure that jumper 301 is across the primary of T300 and jumpers 3A, 3B, and 3C are not installed on the interconnect board. The way to test to make sure that the extender is not cutting back your I.F. gain is to measure the voltage on the plus terminal of the C324. If it is around 6V the Extender is not cutting back the I.F. gain, but if it is around 4V the extender is cutting back the I.F. gain. A word of warning: the heatsink on the Mitrek is woefully undersized for 100% duty cycle and needs lots of forced air flowing over it. There is a lot of good information on Repeater Builders about cooling a Mitrek. Gregory AC6VJ --- In Repeater-Builder@yahoogroups.com, Gmail - Home [EMAIL PROTECTED] wrote: Hi All, I am now in need a some big HELP. I have been trying to get our groups 10mtr repeater up and running, and it seems to want to block me at each point. I am very grateful for the help that has been given so far, and this has got us to the point where we have 50% of the repeater running. But as I said above, it appears that I have hit a block again. I can not get the RX to tune anywhere down to the specs the radio says of .3uV. The best I can do is 1.9uV. And this is the same for all 3 radios I have. The radio were originally fitted with 33Mhz ICOMS, and I have now fitted them with 29.540 ICOMS. They are tuning up, but not as good as I would expect. Our work radio techinian is even baffled as to the problem, and he has 3 decades+ experiance. Checking the schmatic I notice there is no pre-amp on the RF input. I could add a pre-amp here, and this would help. But before I go this route I am asking if there is anything else I can do to get it (them) working better. FYI, I am using our companies radio workshop which has all the required tuning and testing equipment for the aligniment. Be it not the Motorola gear, but it does the job. I can't remember the model numbers, radios are still at work, but they correspond to 60w, single channel, with extender fitted. My understanding from others within this group, these radios will tune down to 29.540 without any trouble. So, am I doing something wrong? (Not famillar with Mitreks here in NZ, never made it this far downunder). Are all 3 radios faulty? I can't see why, but maybe. Are there mods that are required that I have overlooked in all the information I have onhand, from the many web-pages? Do I need to go to another type of radio? And if so, which one/s? Then does anyone have one available? Or come to that, does someone have a tuned Mitrek they can spare to sell (or donate). I will also post this on the repeater-builders user group just in case they can help also. Thanks for any input, and if you wish to contact me directly, please e-mail me at [EMAIL PROTECTED] Please remove the - in the gmail account, I try and limit the spam I get. With the increase of 10mtr activity down here, have a listen for ZL1HK on 29.64Mhz Regards Kevin, ZL1KFM.
[Repeater-Builder] Micor power supply on ebay
Speaking of the devil: Motorola Micor Power Supply Ebay Item number: 140199498746 Don't delay... at the time of this posting there are only two hours left in the auction. You might look up the old auction number and ask the seller to relist it if it doesn't go the first time out. cheers, s.
Re: [Repeater-Builder] Linking Several Repeater Sites
[EMAIL PROTECTED] wrote: I was told by our local techs. half duplex is OK on links. Their Vhf link system uses half duplex link equipment to a 442 repeater. Is full duplex better? Why? Depends on what you want to do. We implement some full-duplex links, others half duplex... but the half duplex links have a full break in type of setup going the direction AWAY from the main site. The reason? Control. If the remote (far away) site has an open squelch/CTCSS problem and we want to control it, we need that link to turn around and go the other direction so we can send commands to it. (We typically have more than one method of control, but for a last ditch effort we want the RF side to be able to get there. If a link is half-duplex and the receiver at the remote site is open causing the link to transmit back to the hub/main system, we HAVE to have a way to turn that link around. Having to go look up control codes to do it is annoying... we build 'em so that they ALWAYS give the main site priority over anything of the outlying repeaters at the edge of the topology. We have three Uhf repeaters which can be linked. Each end tx is on 444. Were the center tx is on 448. So, the ends could have link equipment to the center repeater. With properly done filtering, yes. You can even share antennas with the right setup. Or should the link equipment be added to all three sites using a link simplex frequency? See above... we won't ever do simplex if we can avoid it. If NOTHING else, we can always put a transmitter of our own on the air on the receive frequency of the remote site and over-ride whatever's locking up the system... etc. Think about the failure modes and engineer them out. With only two Uhf sites, can/should the equipment be on set to use the opposite frequency pair, with one being the repeater and the other the link, or should a simplex link frequency and equipment be installed and used at each site? Another very good option is to get away from UHF links altogether. Go down to 220 MHz, or up to 900 MHz, 1.2 GHz, etc. Utilize the low-usage bands, and you'll have oceans of spectrum to utilize if you find a particular link frequency is noisy, etc. (Unless you live somewhere where 220 MHz is busy like SoCal.) Nate WY0X
Re: [Repeater-Builder] Re: Gmrs Repeater
Thank you Tom. -- Doug N3DAB/WPRX486/WPJL709 Tom Parker [EMAIL PROTECTED] wrote: = A repeater is a mobile relay station, not a fixed station as defined in the rules. 50 watts is the limit. thp Gary wrote: CFR title 47 is available on the FCC's website for all to view. 95.135(a) reads No station may transmit with more than 50 watts output power. Subpart (d) reads A fixed station must transmit with no more than 15 watts output power. 95.25 further defines land stations. My suggestion to the anonymous member is to read the rules and contact the FCC for any needed clarification as they have the final word. Gary n3dab wrote: This in response to shady1070's original question and Gary's reponse. Unless I've been misinformed for the past 30+ years the maximum autorized output power for GMRS is 50 watts from the Xmtr.(Base, Mobile and Repeater). There are power limitations on the interstitial freqs. but Repeaters are only permitted on the 8 designated pair $62/467.550 thu .725 in 25 KHz steps. Re: the original question about the rptr./controller set up I would suggest the Kenwood TKR-850 which has everything in one package Contoller, CWid, ctcss/dcs, computer programable, etc. and the Kenwood can be reprogammed down to the 440 band. GMRS rptrs. are not REQUIRED to ID, the GMRS user is, however if the all users operate under a single authorization/call sign CWid is allowed. Also, running a beacon type messages, voice or CWID, may be construed as non-directed traffic (broadcasting) by the FCC. There are many problems aaociated with building and installing a repeater including site location/acquisition, types of antennas, feed line, and duplexers to name a few. I believe you have a pretty good learning curve ahead of you. Wher are you located Shady? Doug N3DAB / WPRX486 / WPJL709 --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com, Gary [EMAIL PROTECTED] wrote: well, first off, assuming your repeater is land based and qualifies as a fixed station (they usually do) then your output power is limited to 15 watts output, CFR Title 47 Part 95.135(d). Gary shady1070 wrote: I Am looking to put a 40 watt repeater on Gmrs. I Know very little about repeaters. I am looking for something That is Pc Programmable and also my biggest concern is about a controller. I want A Nice controller that does voice and I want to have the capabilities of a phone patch for later use on 440. How do you connect the controller to a repeater etc.. Can anybody recommend some stuff and help me out. I cann't find anybody locally that can really halp me with this project. Thanks Yahoo! Groups Links Yahoo! Groups Links No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.6/1229 - Release Date: 1/17/2008 11:12 AM
Re: [Repeater-Builder] Re: Gmrs Repeater
Narrow band is only required on the interstitial channels (those that fall between the repeater pairs) along with the reduced power requirements, but I don't believe the FCC would have any problem if were were to narrow band a repeater. However transient users and other may have a problem ,radio wise, in using it unless it is a private or closed system. -- Doug N3DAB/WPRX486/WPJL709 [EMAIL PROTECTED] wrote: = Good idea Richard especially since Mitreks are wideband radios so making them meet the narrower GMRS specs is probably a monumental task. I wonder if a Mitrek can even meet the required frequency tolerance. Gary Richard Bessey [EMAIL PROTECTED] wrote: Hello, I just wanted to add my 2 cents here. I have been working the last ... 2 years on building a GMRS repeater out of two Motorola Mitrek's and a single M controller. If I had one word of advice, buy a commercial one! Save yourself alot of frustration and money on the tools needed to build it. These have been looking real good to me recently: http://www.gmrsoutlet.com/home.php?cat=1 Regards, Richard Bessey wd8chl wrote: Gary wrote: CFR title 47 is available on the FCC's website for all to view. 95.135(a) reads No station may transmit with more than 50 watts output power. Subpart (d) reads A fixed station must transmit with no more than 15 watts output power. 95.25 further defines land stations. My suggestion to the anonymous member is to read the rules and contact the FCC for any needed clarification as they have the final word. Gary fixed station refers to what we would call 'control stations'. Repeaters and base stations can run 50W. Yahoo! Groups Links
[Repeater-Builder] Outdoor Enclosure
Hi guys, Our club has been given space on top of a local office building, free of charge, the only problem is that the space is outside on a raised platform. Our club is in need of an Outdoor repeater enclosure, prefferably in the 6' range but would settle for a 3' cabinet. Other than buying brand new, I was wondering if anyone here on the reflector might have one collecting dust, that they might want to get rid of for a reasonable price. The club is located in MD, but I have no problem taking a weekend to come and get it if one is available East of the Mississippi. Thanks, Dan KA8YPY
Re: [Repeater-Builder] Removing Scotchkote - from the manufacturer
Hello Paul Would you do us a favor by making very careful measurements on the antenna and putting the info on the Repeater-Builder group. Several of us would like to modify commercial DB-224 antennas to cover 220Mhz. Skip May and I have attempted to get this done before and have not been successful. Thanks greatly. 73 de Tom Manning, AF4UG - Original Message - From: Paul Finch [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, January 23, 2008 9:42 AM Subject: RE: [Repeater-Builder] Removing Scotchkote - from the manufacturer Told us what we already knew! I just got an older 220 MHz DB antenna, before it goes up I will disassemble it and tighten all screws, nuts and terminals, reassemble it and goop with Scotchkoat before going up the tower. I have 8 antennas of my own on my tower and as of December of this year have been up there for 10 years with no problems. Also, I may add, the tower will be paid off in two months! There will be a celebration! Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bob M. Sent: Wednesday, January 23, 2008 6:48 AM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Removing Scotchkote - from the manufacturer I sent the following request to 3M: What's the proper solvent for removing uncured Scotchkote electrical coating? What can be used to remove cured material from wires or other surfaces? Their reply is below. Hey, it's better than nothing. Thank you for contacting 3M. We don't make solvents to remove Scotchkote and any solvent that is used could damage whatever the Scotchkote is spilled on. For uncured Scotchkote, you might use MEK or Acetone. These solvents are in the uncured Scotchkote so might help to remove it. If it has cured, there isn't any product that we could suggest. Best Regards. 3M Electrical Markets Division Technical Support www.3m.com/electrical All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M's current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs Yahoo! Groups Links No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * 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/
Re: [Repeater-Builder] Removing Scotchkote - from the manufacturer
To all who may be interested in DB antenna dipole dimensiomsion I have info/ dimsions on all vhf, 220 and uhf band dipoles.Email me off list at de_n3dab at tds dot net and I will forward the info to you. -- Doug N3DAB/WPRX486/WPJL709 Tom Manning [EMAIL PROTECTED] wrote: = Hello Paul Would you do us a favor by making very careful measurements on the antenna and putting the info on the Repeater-Builder group. Several of us would like to modify commercial DB-224 antennas to cover 220Mhz. Skip May and I have attempted to get this done before and have not been successful. Thanks greatly. 73 de Tom Manning, AF4UG - Original Message - From: Paul Finch [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, January 23, 2008 9:42 AM Subject: RE: [Repeater-Builder] Removing Scotchkote - from the manufacturer Told us what we already knew! I just got an older 220 MHz DB antenna, before it goes up I will disassemble it and tighten all screws, nuts and terminals, reassemble it and goop with Scotchkoat before going up the tower. I have 8 antennas of my own on my tower and as of December of this year have been up there for 10 years with no problems. Also, I may add, the tower will be paid off in two months! There will be a celebration! Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bob M. Sent: Wednesday, January 23, 2008 6:48 AM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Removing Scotchkote - from the manufacturer I sent the following request to 3M: What's the proper solvent for removing uncured Scotchkote electrical coating? What can be used to remove cured material from wires or other surfaces? Their reply is below. Hey, it's better than nothing. Thank you for contacting 3M. We don't make solvents to remove Scotchkote and any solvent that is used could damage whatever the Scotchkote is spilled on. For uncured Scotchkote, you might use MEK or Acetone. These solvents are in the uncured Scotchkote so might help to remove it. If it has cured, there isn't any product that we could suggest. Best Regards. 3M Electrical Markets Division Technical Support www.3m.com/electrical All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M's current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs Yahoo! Groups Links No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.9/1238 - Release Date: 1/22/2008 8:12 PM Yahoo! Groups Links Yahoo! Groups Links
