[Repeater-Builder] Re: Micor repeater audio
After posting the orgingal question, there were a number of posts to this thread. For those that are following along with this maybe it would be a good Idea to have a test setup procedure located in the file section that would show us that don't have the experience of checking the transmitter how to do run these checks. As a repeater owner I want my audio to sound good and the information I obtain from this simple question will help me at least run the tests and hopefully fine the fix. Great job by the folks here and the best thing of all is that I learned something. Oh and Tom about those graphs sometime pictures are worth a 1000 words! Mike W1ZFB
[Repeater-Builder] OT: Astron RM-20A-BB Question
Sorry for the Off-Topic post, but I know that this group is a great resource for questions like this. I'm thinking of purchasing an Astron RM-20A-BB to consolidate my power source for all the ancillary equipment at my site (WX radio, link radio, APRS radio, APRS tracker, etc), but I'd like to know what the power output terminal are. I suspect they're 1/4 studs, but would like to know for sure. Thanks in advance es 73, Mike WM4B
Re: [Repeater-Builder] Re: Zetron 38A not sending reverse burst
Eric Lemmon wrote: The TS-64 does indeed encode a reverse burst STE signal. Unfortunately, it has the 180-degree phase shift, because that is really easy to do. It cannot encode a 120-degree phase shift, so that means it is fairly useless with Motorola and a few other radio brands. When I contacted Comm Spec about this a few years ago, the engineer I spoke with seemed not to know that there are two standard reverse burst formats. 73, Eric Lemmon WB6FLY I wouldn't be too worried about it. An awful lot of Motorola's will do OK with 180 shift, especially higher-tier radios. But then there's some that are just weird. I have a Maxar-80 on GMRS. It doesn't like the Com-Spec TP-3200 tone panel. It also doesn't like the P-100 handheld on talkaround. But it does like the GE MPA and Phoenix-SX I have. Go figure. The Micor repeaters with a factory reed decoder however, seem to be pretty liberal on what they respond to. Just about any radio with RB will be at least partially muted. The TK-805D has a really short delay on the STE drop out, so the decoder doesn't get a chance to fully spin down before the transmitter goes away. But just about any other radio worked OK. I'd leave it, frankly.
[Repeater-Builder] Time for GOD
Read only if you have time for God Let me tell you, make sure you read all the way to the bottom. I almost deleted this email but I was blessed when I got to the end God, when I received this e-mail, I thought I don't have time for this... And, this is really inappropriate during work. Then, I realized that this kind of thinking is Exactly, what has caused a lot of the problems in our world today. We try to keep God in church on Sunday morning... Maybe, Sunday night... And, the unlikely event of a midweek service. We do like to have Him around during sickness And, of course, at funerals. However, we don't have time, or room, for Him during work or play Because.. That's the part of our lives we think We can, and should, handle on our own. May God forgive me for ever thinking... That There is a time or place where.. HE is not to be FIRST in my life. We should always have time to remember all HE has done for us. If, You aren't ashamed to do this... Please follow the directions. Jesus said, 'If you are ashamed of me, I will be ashamed of you before my Father.' Not ashamed? Pass this on ONLY IF YOU MEAN IT!! Yes, I do Love God. HE is my source of existence and Savior... He keeps me functioning each and every day. Without Him, I will be nothing. But, with Christ, HE strengthens me. (Phil 4:13) This is the simplest test. If You Love God... And, are not ashamed of all the marvelous things HE has done for you Send this to ten people and the person who sent it to you! Now do you have the time to pass it on? Make sure that you scroll through to the end. Easy vs. Hard Why is it so hard to tell the truth but Yet so easy to tell a lie? Why are we so sleepy in church but Right when the sermon is over we suddenly wake up? Why is it so easy to delete a Godly e-mail, but yet we forward all of the nasty ones? Of all the free gifts we may receive, Prayer is the very best one There are no costs, but wonderful rewards... GOD BLESS! Notes: Isn't it funny how simple it is for people to trash God and then wonder why the world's going to hell. Isn't it funny how someone can say 'I believe in God' but still follow Satan (who, by the way, also 'believes' in God). Isn't it funny how you can send a thousand jokes through e-mail and they spread like wildfire, but when you start sending messages regarding the Lord, people think twice about sharing? Isn't it funny how when you go to forward this message, you will not send it to many on your address list because you're not sure what they believe, or what they will think of you for sending it to them Isn't it funny how I can be more worried about what other people think of me than what God thinks of me. I pray, for everyone who sends this to their entire address book, they will be blessed by God in a way special for them. And send it back to the person who sent it, to let them know that indeed it was sent out to many more. -- Always drink upstream from the herd.
[Repeater-Builder] Re: Zetron 38A not sending reverse burst
Thanks for the useful info. Very interesting. On a somewhat similar topic, we ran into a situation where the local Motorola shop sold a local entity a repeater and several portables using a DPL code that only certain models of Motorola have. We checked every Kenwood, Vertex, and even some other Motorola models and none could do this particular code. I found a work around for the lack of reverse burst. I am using a Tait exciter which has its own hang timer. I just set that timer to hold the carrier up for a fraction of a second after the 38A drops out. This gives the PL decoder in the mobiles/portables time to close the squelch before the carrier drops. --- In Repeater-Builder@yahoogroups.com, wd8chl wd8...@... wrote: Eric Lemmon wrote: The TS-64 does indeed encode a reverse burst STE signal. Unfortunately, it has the 180-degree phase shift, because that is really easy to do. It cannot encode a 120-degree phase shift, so that means it is fairly useless with Motorola and a few other radio brands. When I contacted Comm Spec about this a few years ago, the engineer I spoke with seemed not to know that there are two standard reverse burst formats. 73, Eric Lemmon WB6FLY I wouldn't be too worried about it. An awful lot of Motorola's will do OK with 180 shift, especially higher-tier radios. But then there's some that are just weird. I have a Maxar-80 on GMRS. It doesn't like the Com-Spec TP-3200 tone panel. It also doesn't like the P-100 handheld on talkaround. But it does like the GE MPA and Phoenix-SX I have. Go figure. The Micor repeaters with a factory reed decoder however, seem to be pretty liberal on what they respond to. Just about any radio with RB will be at least partially muted. The TK-805D has a really short delay on the STE drop out, so the decoder doesn't get a chance to fully spin down before the transmitter goes away. But just about any other radio worked OK. I'd leave it, frankly.
Re: [Repeater-Builder] Re: Zetron 38A not sending reverse burst
I've gone so far as to make a couple of changes to a Motorola MSR2000 to not send reverse burst, and hold the transmitter a little longer than a normal reverse burst -- that is to say, chicken burst. That was a different application, what I'll do next time I deal with a Micor or MSR with a Zetron (which may be never) -- that is to say, use a factory card just to get the extra carrier hang with no reeds in it and jumpered as if there were no card :) On Nov 20, 2009, at 9:24 AM, wspx472 wrote: Thanks for the useful info. Very interesting. On a somewhat similar topic, we ran into a situation where the local Motorola shop sold a local entity a repeater and several portables using a DPL code that only certain models of Motorola have. We checked every Kenwood, Vertex, and even some other Motorola models and none could do this particular code. I found a work around for the lack of reverse burst. I am using a Tait exciter which has its own hang timer. I just set that timer to hold the carrier up for a fraction of a second after the 38A drops out. This gives the PL decoder in the mobiles/portables time to close the squelch before the carrier drops. --- In Repeater-Builder@yahoogroups.com, wd8chl wd8...@... wrote: Eric Lemmon wrote: The TS-64 does indeed encode a reverse burst STE signal. Unfortunately, it has the 180-degree phase shift, because that is really easy to do. It cannot encode a 120-degree phase shift, so that means it is fairly useless with Motorola and a few other radio brands. When I contacted Comm Spec about this a few years ago, the engineer I spoke with seemed not to know that there are two standard reverse burst formats. 73, Eric Lemmon WB6FLY I wouldn't be too worried about it. An awful lot of Motorola's will do OK with 180 shift, especially higher-tier radios. But then there's some that are just weird. I have a Maxar-80 on GMRS. It doesn't like the Com-Spec TP-3200 tone panel. It also doesn't like the P-100 handheld on talkaround. But it does like the GE MPA and Phoenix-SX I have. Go figure. The Micor repeaters with a factory reed decoder however, seem to be pretty liberal on what they respond to. Just about any radio with RB will be at least partially muted. The TK-805D has a really short delay on the STE drop out, so the decoder doesn't get a chance to fully spin down before the transmitter goes away. But just about any other radio worked OK. I'd leave it, frankly. -- Cort Buffington H: +1-785-838-3034 M: +1-785-865-7206 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: repeater-builder-dig...@yahoogroups.com repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Zetron 38A not sending reverse burst
wspx472 wrote: Thanks for the useful info. Very interesting. On a somewhat similar topic, we ran into a situation where the local Motorola shop sold a local entity a repeater and several portables using a DPL code that only certain models of Motorola have. We checked every Kenwood, Vertex, and even some other Motorola models and none could do this particular code. I found a work around for the lack of reverse burst. I am using a Tait exciter which has its own hang timer. I just set that timer to hold the carrier up for a fraction of a second after the 38A drops out. This gives the PL decoder in the mobiles/portables time to close the squelch before the carrier drops. That'll work on nearly all radios. I found my wife's VX-1 won't even respond to that. I checked-once the decoder opens, it stays open until the carrier squelch closes-forever. It does do DPL turn-off code though. Jim
Re: [Repeater-Builder] Time for GOD
I believe in god, but if I want to read or talk about it, I will join the Jesus group. This does not belong here. Tim On 11/20/09, Lee Pennington localjunkpedd...@gmail.com wrote: Read only if you have time for God Let me tell you, make sure you read all the way to the bottom. I almost deleted this email but I was blessed when I got to the end God, when I received this e-mail, I thought I don't have time for this... And, this is really inappropriate during work. Then, I realized that this kind of thinking is Exactly, what has caused a lot of the problems in our world today. We try to keep God in church on Sunday morning... Maybe, Sunday night... And, the unlikely event of a midweek service. We do like to have Him around during sickness And, of course, at funerals. However, we don't have time, or room, for Him during work or play Because.. That's the part of our lives we think We can, and should, handle on our own. May God forgive me for ever thinking... That There is a time or place where.. HE is not to be FIRST in my life. We should always have time to remember all HE has done for us. If, You aren't ashamed to do this... Please follow the directions. Jesus said, 'If you are ashamed of me, I will be ashamed of you before my Father.' Not ashamed? Pass this on ONLY IF YOU MEAN IT!! Yes, I do Love God. HE is my source of existence and Savior... He keeps me functioning each and every day. Without Him, I will be nothing. But, with Christ, HE strengthens me. (Phil 4:13) This is the simplest test. If You Love God... And, are not ashamed of all the marvelous things HE has done for you Send this to ten people and the person who sent it to you! Now do you have the time to pass it on? Make sure that you scroll through to the end. Easy vs. Hard Why is it so hard to tell the truth but Yet so easy to tell a lie? Why are we so sleepy in church but Right when the sermon is over we suddenly wake up? Why is it so easy to delete a Godly e-mail, but yet we forward all of the nasty ones? Of all the free gifts we may receive, Prayer is the very best one There are no costs, but wonderful rewards... GOD BLESS! Notes: Isn't it funny how simple it is for people to trash God and then wonder why the world's going to hell. Isn't it funny how someone can say 'I believe in God' but still follow Satan (who, by the way, also 'believes' in God). Isn't it funny how you can send a thousand jokes through e-mail and they spread like wildfire, but when you start sending messages regarding the Lord, people think twice about sharing? Isn't it funny how when you go to forward this message, you will not send it to many on your address list because you're not sure what they believe, or what they will think of you for sending it to them Isn't it funny how I can be more worried about what other people think of me than what God thinks of me. I pray, for everyone who sends this to their entire address book, they will be blessed by God in a way special for them. And send it back to the person who sent it, to let them know that indeed it was sent out to many more. -- Always drink upstream from the herd. -- Sent from my mobile device
[Repeater-Builder] Re: Building Low Band Loop Antennas (DB-212)
Many thanks... makes it hard for me to be rotten all the time when people are nice. s. Ken Decker wa6...@... wrote: Skipp, Here's the WA1ZDX info www.ccdx.org/zedyx/mods/db212.htm Actually this one is on Repeater Builder http://www.repeater-builder.com/db/db-212-assembly-and-mounting-instructions-(andrew).pdf Spec from Andrew on the DB212 http://www.stealth.ae/plugins/custompages/detinf.php?id=322id_categories=115 More Andrew info http://www.hol4g.com/webpdf/DBB_CAT29-PG318-319_01.PDF Info on modifying a DB201 and DB212 for 10 and 6 meters http://www.xanaduu.com/db201/ Ken WA6OSB
[Repeater-Builder] Re: Time for GOD
Lee, Please post the unsliced bologna to the appropriate group... of which this is not one of... s. Lee Pennington localjunkpedd...@... wrote: Read only if you have time for God
[Repeater-Builder] 2 dB Error in DVM level readings
Pasted from another Technical Forum This comes up from time to time ..well, it came up again. Check the display for the measurement unit. Fluke 189s measure in dBV (dB referenced to one Volt), not dBm (dB referenced to one milliWatt). 0dBm (.775 VAC) is a couple dB different in voltage from 1 Volt. A good clue is on the display of the 189 over to the right, it says dB and V. When the 189 is measuring a 0 dBm tone, it indicates -2.21 dB V and the small voltage display indicates .775. If you use the old 20 log (.775/1) formula, you come up with a difference of -2.21 dB. All of the DVMs are high impedance input, so they don't measure actual power. The 189s only know that 1VAC is displayed as 0dBV and the 287s know that .775 VAC is displayed as 0dBm when it is in the dBm mode. Those of you who have the new 287s get to read dBm directly and as an added bonus, get to change batteries very frequently. Those of you who have the 189s get to use your smarts more and don't have to change batteries so often. Check the specs on your individual DVM. It may be able to count CTCSS. The old wideband AC Voltmeters are failing rapidly. You will have to use your Transmission Test Set and possibly some functionality of your DVM to replace the greatness of the old wideband AC Voltmeter.
Re: [Repeater-Builder] Yaesu FTR-2410A tuning
Paul Holm wrote: I'm recrystalling this unit and am working on the TX. The first part of the tuning procedure states to monitor a circuit point with a VTVM but there is no test point to connect to. Worse, the only way to physically get a connection to this point is to completely disassemble the TX, which doesn't make much sense to me. Maybe the problem is with me. Is anyone familiar with these things? Thanks. 73 Paul - KC0HST Paul, It has been many years since I played with a 2410, but IIRC you will need to take the TX top cover off and then bend Q3/Q2003 over a little bit so you can make contact with the base lead. Not very user friendly to say the least. Ed Yoho W6YJ
[Repeater-Builder] S-COM 5K time date command
Anybody know the command to set the time date on an S-COM 5K with older firmware? Possibly v1.5 (I don't have it here in front of me...) The only owner's manual on the S-COM site is for v2.0. Thanks George, KA3HSW / WQGJ413
Re: [Repeater-Builder] Yaesu FTR-2410A tuning
Ed, Thanks for the confirmation. This morning I went ahead and removed/loosened the PA assembly so I could access the bottom of the PCB. I soldered on a short length of 24ga solid to the appropriate land and routed it to the topside of the assembly cage so I could access it for tuning. Worked good. When finished, I left it in place and insulated the bare end as a precaution. 73 Paul - Original Message - From: Ed Yoho w6yj_ya...@67hz.net To: Repeater-Builder@yahoogroups.com Sent: Friday, November 20, 2009 12:02 PM Subject: Re: [Repeater-Builder] Yaesu FTR-2410A tuning Paul Holm wrote: I'm recrystalling this unit and am working on the TX. The first part of the tuning procedure states to monitor a circuit point with a VTVM but there is no test point to connect to. Worse, the only way to physically get a connection to this point is to completely disassemble the TX, which doesn't make much sense to me. Maybe the problem is with me. Is anyone familiar with these things? Thanks. 73 Paul - KC0HST Paul, It has been many years since I played with a 2410, but IIRC you will need to take the TX top cover off and then bend Q3/Q2003 over a little bit so you can make contact with the base lead. Not very user friendly to say the least. Ed Yoho W6YJ
[Repeater-Builder] Re: 2 dB Error in DVM level readings
So we all (here) pulled out our meters for a comparison. First off... our one Fluke 189 does measure in dBm as did every meter and transmission test set in the shop. So all is not glitters that is written in technical forum stone (gold). s. skipp025 skipp...@... wrote: Pasted from another Technical Forum This comes up from time to time ..well, it came up again. Check the display for the measurement unit. Fluke 189s measure in dBV (dB referenced to one Volt), not dBm (dB referenced to one milliWatt). 0dBm (.775 VAC) is a couple dB different in voltage from 1 Volt. A good clue is on the display of the 189 over to the right, it says dB and V. When the 189 is measuring a 0 dBm tone, it indicates -2.21 dB V and the small voltage display indicates .775. If you use the old 20 log (.775/1) formula, you come up with a difference of -2.21 dB. All of the DVMs are high impedance input, so they don't measure actual power. The 189s only know that 1VAC is displayed as 0dBV and the 287s know that .775 VAC is displayed as 0dBm when it is in the dBm mode. Those of you who have the new 287s get to read dBm directly and as an added bonus, get to change batteries very frequently. Those of you who have the 189s get to use your smarts more and don't have to change batteries so often. Check the specs on your individual DVM. It may be able to count CTCSS. The old wideband AC Voltmeters are failing rapidly. You will have to use your Transmission Test Set and possibly some functionality of your DVM to replace the greatness of the old wideband AC Voltmeter.
[Repeater-Builder] Re: S-COM 5K time date command
Re: S-COM 5K time date command Hi George, If you don't find it by the end of today... Email me and I'll send it to you from my home office. I have a pair of original 5K V.5 controllers on my shelf waiting for service and the original manual is there. cheers, skipp skipp025 at yahoo.com ps: I can fax the manual pages to you... if you can receive a fax. --- In Repeater-Builder@yahoogroups.com, ka3hsw ka3...@... wrote: Anybody know the command to set the time date on an S-COM 5K with older firmware? Possibly v1.5 (I don't have it here in front of me...) The only owner's manual on the S-COM site is for v2.0. Thanks George, KA3HSW / WQGJ413
Re: [Repeater-Builder] S-COM 5K time date command
Hi George, Anybody know the command to set the time date on an S-COM 5K with older firmware? Possibly v1.5 (I don't have it here in front of me...) The only owner's manual on the S-COM site is for v2.0. The command was changed because the software real time clock in V1.x became a hardware RTC in V2.0. The old command was: (PW) 18 (hours 00-23, minutes 00-59, month 01-12, day 01-31) *. 73, Bob Bob Schmid, WA9FBO, Member S-COM, LLC PO Box 1546 LaPorte, CO 80535-1546 970-416-6505 phone 970-419-3222 fax www.scomcontrollers.com
[Repeater-Builder] Re: Wanted UHF MVP
Do you want a unit already assembled with duplexer or just all the parts and you put it together. Do you have any idea what this may cost you? --- In Repeater-Builder@yahoogroups.com, Paul paul.ruszc...@... wrote: Hi guys, I have been reading this list for a long time and now its time to take the plunge. I need to build a portable UHF repeater for my SAR team. So, I am looking for a UHF MVP. I will pay a reasonable price and shipping to Atlanta, 30317 I am looking forward to trying this and I will be asking more questions, this is only the first. Please reply directly to sarpaul(at)gmail(dot)com. Thanks! Paul KI4ADT www.atsar.org
Re: [Repeater-Builder] Re: Wanted UHF MVP
Probably will be too late for you, but I've seen these on this site before: ebay item # 250530379636 Charles, KS3Z --- On Fri, 11/20/09, dwmcg...@bellsouth.net dwmcg...@bellsouth.net wrote: From: dwmcg...@bellsouth.net dwmcg...@bellsouth.net Subject: [Repeater-Builder] Re: Wanted UHF MVP To: Repeater-Builder@yahoogroups.com Date: Friday, November 20, 2009, 7:07 PM Do you want a unit already assembled with duplexer or just all the parts and you put it together. Do you have any idea what this may cost you? --- In Repeater-Builder@yahoogroups.com, Paul paul.ruszc...@... wrote: Hi guys, I have been reading this list for a long time and now its time to take the plunge. I need to build a portable UHF repeater for my SAR team. So, I am looking for a UHF MVP. I will pay a reasonable price and shipping to Atlanta, 30317 I am looking forward to trying this and I will be asking more questions, this is only the first. Please reply directly to sarpaul(at)gmail(dot)com. Thanks! Paul KI4ADT www.atsar.org Yahoo! Groups Links
[Repeater-Builder] Re: Antenna Pattern Question
Bill, The antenna will be a building-top installation. The only thing near field is a couple of VHF fiberglas omni sticks that are over 6' away. Interaction with anything else will be insignificant. Thanks Dan N8DJP Re: Antenna Pattern Question Posted by: William Becks wbe...@centurytel.net wgbecks Date: Thu Nov 19, 2009 4:13 pm ((PST)) Dan, Before you make any decisions about selecting any specific antenna for your application, you need to know or specify top or side mounting. Then you'll need to consider any and all metallic objects present in the near environment of the antenna because they constitute reflective or parasitic sources that can have a profound impact on the actual far field radiation pattern obtained. I have done a lot of NEC modeling in order to make a more informed scientific estimations of how these factors modify the final radiation pattern before attempting to choose any specific antenna for a given application vs. placement and orientation about the tower. NEC modeling is only and good as the modelers ability to accurately construct a model that truly depict the real world electrical environment of the antenna. It's doubtful that you would ever get an antenna manufacturer to model, or to guarantee a particular pattern outside of those field patterns derived from their antenna test range due to the complexity of modeling and of offering such service. Cellular and other similar providers largely employ directional panel arrays are virtually free of any significant radiation in the direction of the tower, supporting structure, or other antennas in the near environment. Therefore, their engineers don't need to consider the unwanted effects of parasitic radiation sources external to the array. Unfortunately, those of us relegated to VHF and UHF systems end up illuminating a rather large area of the tower resulting in a complex number of parasitic radiation sources that change the resultant pattern that otherwise might radiate per the text books if located in free space. Bill, WA8WG
[Repeater-Builder] Re: Time for GOD
Of course, I can't speak for others, but I am glad that I was distracted from the trivial by something truly important. It only took me a minute or two to read it and in that minute or two, it did get my wandering thoughts back on track. Radio may be fun but it can't improve my life in any significant way. Lee, I'm only one vote but that one vote welcomes this momentary distraction. Tom DGN --- In Repeater-Builder@yahoogroups.com, Lee Pennington localjunkpedd...@... wrote: Read only if you have time for God Let me tell you, make sure you read all the way to the bottom. I almost deleted this email but I was blessed when I got to the end God, when I received this e-mail, I thought I don't have time for this... And, this is really inappropriate during work. Then, I realized that this kind of thinking is Exactly, what has caused a lot of the problems in our world today. We try to keep God in church on Sunday morning... Maybe, Sunday night... And, the unlikely event of a midweek service. We do like to have Him around during sickness And, of course, at funerals. However, we don't have time, or room, for Him during work or play Because.. That's the part of our lives we think We can, and should, handle on our own. May God forgive me for ever thinking... That There is a time or place where.. HE is not to be FIRST in my life. We should always have time to remember all HE has done for us. If, You aren't ashamed to do this... Please follow the directions. Jesus said, 'If you are ashamed of me, I will be ashamed of you before my Father.' Not ashamed? Pass this on ONLY IF YOU MEAN IT!! Yes, I do Love God. HE is my source of existence and Savior... He keeps me functioning each and every day. Without Him, I will be nothing. But, with Christ, HE strengthens me. (Phil 4:13) This is the simplest test. If You Love God... And, are not ashamed of all the marvelous things HE has done for you Send this to ten people and the person who sent it to you! Now do you have the time to pass it on? Make sure that you scroll through to the end. Easy vs. Hard Why is it so hard to tell the truth but Yet so easy to tell a lie? Why are we so sleepy in church but Right when the sermon is over we suddenly wake up? Why is it so easy to delete a Godly e-mail, but yet we forward all of the nasty ones? Of all the free gifts we may receive, Prayer is the very best one There are no costs, but wonderful rewards... GOD BLESS! Notes: Isn't it funny how simple it is for people to trash God and then wonder why the world's going to hell. Isn't it funny how someone can say 'I believe in God' but still follow Satan (who, by the way, also 'believes' in God). Isn't it funny how you can send a thousand jokes through e-mail and they spread like wildfire, but when you start sending messages regarding the Lord, people think twice about sharing? Isn't it funny how when you go to forward this message, you will not send it to many on your address list because you're not sure what they believe, or what they will think of you for sending it to them Isn't it funny how I can be more worried about what other people think of me than what God thinks of me. I pray, for everyone who sends this to their entire address book, they will be blessed by God in a way special for them. And send it back to the person who sent it, to let them know that indeed it was sent out to many more. -- Always drink upstream from the herd.
RE: [Repeater-Builder] Re: 2 dB Error in DVM level readings
I don't have a 189 but have other fluke meters. Measuring in dBm, to measure an absolute value, you must first know what load you are measuring across. Then the meter must be set up to read zero dBm across that load impedance. One of the fluke meters that I have has several different settings of load resistance references so that it will read absolute dBm correctly. If you just want to read relative dB between two different levels then the load impedance is not important. Just stick the meter on the load with the signal applied and read the reference level in dBm (or offset the zero at that level) then change the level of the signal and read the dB difference between the two. 73 Gary K4FMX -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of skipp025 Sent: Friday, November 20, 2009 2:38 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 2 dB Error in DVM level readings So we all (here) pulled out our meters for a comparison. First off... our one Fluke 189 does measure in dBm as did every meter and transmission test set in the shop. So all is not glitters that is written in technical forum stone (gold). s. skipp025 skipp...@... wrote: Pasted from another Technical Forum This comes up from time to timewell, it came up again. Check the display for the measurement unit. Fluke 189s measure in dBV (dB referenced to one Volt), not dBm (dB referenced to one milliWatt). 0dBm (.775 VAC) is a couple dB different in voltage from 1 Volt. A good clue is on the display of the 189 over to the right, it says dB and V. When the 189 is measuring a 0 dBm tone, it indicates -2.21 dB V and the small voltage display indicates .775. If you use the old 20 log (.775/1) formula, you come up with a difference of -2.21 dB. All of the DVMs are high impedance input, so they don't measure actual power. The 189s only know that 1VAC is displayed as 0dBV and the 287s know that .775 VAC is displayed as 0dBm when it is in the dBm mode. Those of you who have the new 287s get to read dBm directly and as an added bonus, get to change batteries very frequently. Those of you who have the 189s get to use your smarts more and don't have to change batteries so often. Check the specs on your individual DVM. It may be able to count CTCSS. The old wideband AC Voltmeters are failing rapidly. You will have to use your Transmission Test Set and possibly some functionality of your DVM to replace the greatness of the old wideband AC Voltmeter. Yahoo! Groups Links
Re: [Repeater-Builder] OT: Astron RM-20A-BB Question
I have a RM-50. It has a 1/4 stud, by 1 1/4. What is the BB option on your Astron? I await your reply. 73's,JimKh6jkg. -Original Message- From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com; amateur-repa...@yahoogroups.com Sent: Fri, Nov 20, 2009 1:35 am Subject: [Repeater-Builder] OT: Astron RM-20A-BB Question Sorry for the Off-Topic post, but I know that this group is a great resource for questions like this. I'm thinking of purchasing an Astron RM-20A-BB to consolidate my power source for all the ancillary equipment at my site (WX radio, link radio, APRS radio, APRS tracker, etc), but I'd like to know what the power output terminal are. I suspect they're 1/4 studs, but would like to know for sure. Thanks in advance es 73, Mike WM4B
RE: [Repeater-Builder] OT: Astron RM-20A-BB Question
Switching for Battery Backup. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kh6...@netscape.net Sent: Friday, November 20, 2009 10:08 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] OT: Astron RM-20A-BB Question I have a RM-50. It has a 1/4 stud, by 1 1/4. What is the BB option on your Astron? I await your reply. 73's,JimKh6jkg. -Original Message- From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com; amateur-repa...@yahoogroups.com Sent: Fri, Nov 20, 2009 1:35 am Subject: [Repeater-Builder] OT: Astron RM-20A-BB Question Sorry for the Off-Topic post, but I know that this group is a great resource for questions like this. I'm thinking of purchasing an Astron RM-20A-BB to consolidate my power source for all the ancillary equipment at my site (WX radio, link radio, APRS radio, APRS tracker, etc), but I'd like to know what the power output terminal are. I suspect they're 1/4 studs, but would like to know for sure. Thanks in advance es 73, Mike WM4B
Re: [Repeater-Builder] Re: Antenna Pattern Question
Dan, The VHF fiberglass Omni's within 6 feet of your building-top antenna can cause pattern distortion just as is the case with side mounted tower installations. However, I recall from your original posting that your application requirement is to produce a deep null +/- 45 degrees with as much gain as possible elsewhere around the compass. The best candidate for this application would be a corner reflector array such as the Comprod 470-70 (Assuming VHF) that develops 30 dB Front to Back with a main horizontal beam width of 67 degrees. Check URL: http://www.comprodcom.com/en/antennas/base/pdf/471-70.pdf If the 67 degree horizontal beam width is too narrow for your intended coverage area and you can live a little less front to back ratio, then a better choice would be the Comprod F-3713 that has a flat reflector screen mounted behind the folded dipole radiator elements. Check URL: http://www.comprodcom.com/en/ecatalogs/BaseStation2005-Full.pdf You should expect to obtain nearly the same published pattern shape and gain with either of these antennas for your building-top installation provided that you are able to mount your antenna such that the fiberglass Omni's are behind the reflector and not out in front of the main beam of the array. This gives you the advantage of a large reduction in radiation (excitation) toward the Omni's that significantly reduce overall parasitic radiation from these sources with little or no net change from published pattern shape and gain. A secondary benefit is an increase in isolation from the other VHF systems that may prevent or reduce the possibility of receiver desense or transmitter IM among the three systems sharing the rooftop. Good luck with your project! Bill, WA8WG - Original Message - From: Dan Hancock To: repeater builders Sent: Friday, November 20, 2009 8:15 PM Subject: [Repeater-Builder] Re: Antenna Pattern Question Bill, The antenna will be a building-top installation. The only thing near field is a couple of VHF fiberglas omni sticks that are over 6' away. Interaction with anything else will be insignificant. Thanks Dan N8DJP Re: Antenna Pattern Question Posted by: William Becks wbe...@centurytel.net wgbecks Date: Thu Nov 19, 2009 4:13 pm ((PST)) Dan, Before you make any decisions about selecting any specific antenna for your application, you need to know or specify top or side mounting. Then you'll need to consider any and all metallic objects present in the near environment of the antenna because they constitute reflective or parasitic sources that can have a profound impact on the actual far field radiation pattern obtained. I have done a lot of NEC modeling in order to make a more informed scientific estimations of how these factors modify the final radiation pattern before attempting to choose any specific antenna for a given application vs. placement and orientation about the tower. NEC modeling is only and good as the modelers ability to accurately construct a model that truly depict the real world electrical environment of the antenna. It's doubtful that you would ever get an antenna manufacturer to model, or to guarantee a particular pattern outside of those field patterns derived from their antenna test range due to the complexity of modeling and of offering such service. Cellular and other similar providers largely employ directional panel arrays are virtually free of any significant radiation in the direction of the tower, supporting structure, or other antennas in the near environment. Therefore, their engineers don't need to consider the unwanted effects of parasitic radiation sources external to the array. Unfortunately, those of us relegated to VHF and UHF systems end up illuminating a rather large area of the tower resulting in a complex number of parasitic radiation sources that change the resultant pattern that otherwise might radiate per the text books if located in free space. Bill, WA8WG
[Repeater-Builder] Re: Time for GOD
What is this crap on here? Please ban the originator. Delusional stuff is not welcomed by me! There are no gawds BTW!
[Repeater-Builder] For Sale
Equatorial 5100 Controller model: 5102-00 channel number: Spacenet part: 99-0022-74 I don't know if it works as I don't have a plug for it. I have Never opened it don't ask me to. I would'nt know what I'd be looking at. $100.00 and you pay shipping. Similiar item being sold on eBay for more...
[Repeater-Builder] Automated spam.
Well, you see, it's like this... The group setting is currently Membership does not require approval. Now then, many, MANY automated spambots are designed to take advantage of just his setting on just this system. They troll the groups, some even just generate random names for groups, since most any combination of numbers and letters can be used for a group name, subscribe using the e-mail command (-subscribe), get the welcome message and blast out their opinion, and in most cases unsubscribe so there is no trace of the originator. By the time you complain, they've hit a thousand other groups. When you comment on the post, you are commenting to nothing, nobody, anywhere... An automated machine just doing it's thing, usually untraceable with no interest in you, the group, topic, nothing. The remedy is to simply turn off the automated subscription setting, this takes about as long as it does for the spambot to subscribe and blast the group, then disappear forever, about 15 seconds. Change this setting and the only comments you'll ever get are from members, which can be controlled. Right now the group is open to anything, anywhere. As I type this, I see Email attachments are distributed, not archived, which means if just ONE person, spambot, whatever, sends a virus, all 4,781 of us will get it delivered to us. This also applies to porn ads, KP, male member enhancers et cetera, they send it, we get it. I see in the description If you are a Yahoo Spammer you'll not be able to post because all new members are moderated. This takes a few more steps out of ones way to control, so easy to let spammers slip through, harder to control with a group this size as each membership has to be manually changed online after the fact. This is how yahoo and this group works. If the moderators are not familiar with locking down the group, contact me, I run several and can walk you through it. Kurt - Original Message - From: hfarrenkopf hfarrenk...@yahoo.ca What is this crap on here? Please ban the originator. Delusional stuff is not welcomed by me! There are no gawds BTW!
Re: [Repeater-Builder] Re: Time for GOD
Including the original, yours is now the fifth email on the subject. A single email of this type can be considered a 'slip'. Multiples - SPAM. A single pro-GOD email slipping through may be offensive to some, but certainly no less offensive than your egging the situation on with your There are no gawds... comment. You got your licks in. Now let's drop it. Jon Pearl - W4ABC Moderator - Original Message - From: hfarrenkopf hfarrenk...@yahoo.ca To: Repeater-Builder@yahoogroups.com Sent: Friday, November 20, 2009 10:54 PM Subject: [Repeater-Builder] Re: Time for GOD What is this crap on here? Please ban the originator. Delusional stuff is not welcomed by me! There are no gawds BTW!
RE: [Repeater-Builder] Re: Time for GOD
Well, it certainly is off topic, but you should have more of an open mind. After all, people are entitled to their opinions, and to be able to speak their minds. Richard http://www.n7tgb.net/ www.n7tgb.net It does not take a majority to prevail ... but rather an irate, tireless minority, keen on setting brushfires of freedom in the minds of men. --Samuel Adams _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of hfarrenkopf Sent: Friday, November 20, 2009 7:55 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Time for GOD What is this crap on here? Please ban the originator. Delusional stuff is not welcomed by me! There are no gawds BTW!
Re: [Repeater-Builder] S-COM 5K time date command
Thank you... that did it! Turns out this controller has the v1.3 firmware. Trying to convince the rest of the repeater board to invest in the v2.0 upgrade. George, KA3HSW / WQGJ413 - Original Message - From: scom...@aol.com To: Repeater-Builder@yahoogroups.com Sent: Friday, November 20, 2009 4:13 PM Subject: Re: [Repeater-Builder] S-COM 5K time date command Hi George, Anybody know the command to set the time date on an S-COM 5K with older firmware? Possibly v1.5 (I don't have it here in front of me...) The only owner's manual on the S-COM site is for v2.0. The command was changed because the software real time clock in V1.x became a hardware RTC in V2.0. The old command was: (PW) 18 (hours 00-23, minutes 00-59, month 01-12, day 01-31) *. 73, Bob Bob Schmid, WA9FBO, Member S-COM, LLC PO Box 1546 LaPorte, CO 80535-1546 970-416-6505 phone 970-419-3222 fax www.scomcontrollers.com
[Repeater-Builder] Killer Sinclair Repeater Antenna Deal for PU Only in Arlington Texas
re: Killer Sinclair Repeater Antenna Deal for PU Only in Arlington Texas This is the killer deal of the day if you live within driving distance of the seller. Sinclair VHF Base/Repeater Antenna Ebay Item: 270488413563 Item location: Arlington, Texas, s. (you're 5,9,9 - good luck in the contest)
Re: [Repeater-Builder] Automated spam.
First of all, this group has, at this moment, 4781 members, and it's been around for a good amount over 10 years. Other replies in the text. Please read. At 09:49 PM 11/20/09, you wrote: Well, you see, it's like this... The group setting is currently Membership does not require approval. Yes, anyone can join. And the fact that this group exists is open to the world. There are other groups that aren't that way. For example, the team that put together the new ARRL Manual did it with a closed, private Yahoogroup. If you didn't know the group existed AND if you were not invited, you would never know they were there, no matter how many searches you did, and how you did them. Another example was a yahoogroup that was used to coordinate a friends wedding several months ago. It was for a couple that met in a freshman class at Cal Tech, yet waited until both had their PHDs to get married (and it was a geek themed wedding). The whole thing was planned via a yahoogroup (which has since been deleted). The group existence was public, but you had to be invited to join. One of the tips I gave them was that if you don't want to pay though the nose for the wedding bouquet just say its for your little sisters birthday party, and the price goes way down. In fact that trick works for anything to do with a wedding - you say its for a wedding the price goes up, tell them its for a birthday and the price is much more reasonable. Now then, many, MANY automated spambots are designed to take advantage of just his setting on just this system. They troll the groups, some even just generate random names for groups, since most any combination of numbers and letters can be used for a group name, subscribe using the e-mail command (-subscribe), get the welcome message and blast out their opinion, and in most cases unsubscribe so there is no trace of the originator. By the time you complain, they've hit a thousand other groups. True - but if all pending memberships have to be approved then there are no postings. And I can't tell you how many pending memberships the moderators have spiked. I've done three just this week. When you comment on the post, you are commenting to nothing, nobody, anywhere... An automated machine just doing it's thing, usually untraceable with no interest in you, the group, topic, nothing. True The remedy is to simply turn off the automated subscription setting, It's not on, and hasn't been on for years. The person that posed that message has been a full member for over a year. this takes about as long as it does for the spambot to subscribe and blast the group, then disappear forever, about 15 seconds. Change this setting and the only comments you'll ever get are from members, which can be controlled. Right now the group is open to anything, anywhere. On that, you are wrong. The ability to post requires approval. This group has been configured so all posted messages from new members require approval. As I type this, I see Email attachments are distributed, not archived, which means if just ONE person, spambot, whatever, sends a virus, all 4,781 of us will get it delivered to us. This also applies to porn ads, KP, male member enhancers et cetera, they send it, we get it. The big IF - the person has to be a full member to post. If you can't post, you can't send a message, with or without an atachment. I see in the description If you are a Yahoo Spammer you'll not be able to post because all new members are moderated. This takes a few more steps out of ones way to control, so easy to let spammers slip through, harder to control with a group this size as each membership has to be manually changed online after the fact. True. With 4781 members, that means that a moderator had to promote each and every member to full membership. This is how yahoo and this group works. If the moderators are not familiar with locking down the group, contact me, I run several and can walk you through it. Kurt This group has been in a locked down state since day one. In all that time I'd be willing to bet that less than 25 spams have gotten through. The member that posted that message has been a full list member since November 9th of 2008. He had just as much right to post as anybody else. On the other hand you ( Kurt ) have been a member for less than 10 days. YOU DO NOT KNOW HOW THIS GROUP IS RUN. The person that posted the message has been dealt with - he's on full moderation until we find out what has happened. It could be something as simple as someone else used his laptop / desktop. It's happened before. This thread is ended. Now. - Original Message - From: hfarrenkopf hfarrenk...@yahoo.ca What is this crap on here? Please ban the originator. Delusional stuff is not welcomed by me! There are no gawds BTW! Everybody is welcome to their own opinion. Mike WA6ILQ moderator
Re: [Repeater-Builder] OT: Astron RM-20A-BB Question
The BB option is an overpriced pair of big diodes, and a resetting of the voltage pot. See the Astron page at www.repeater-builder.com At 07:08 PM 11/20/09, you wrote: I have a RM-50. It has a 1/4 stud, by 1 1/4. What is the BB option on your Astron? I await your reply. 73's,JimKh6jkg. -Original Message- From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com; amateur-repa...@yahoogroups.com Sent: Fri, Nov 20, 2009 1:35 am Subject: [Repeater-Builder] OT: Astron RM-20A-BB Question Sorry for the Off-Topic post, but I know that this group is a great resource for questions like this. I'm thinking of purchasing an Astron RM-20A-BB to consolidate my power source for all the ancillary equipment at my site (WX radio, link radio, APRS radio, APRS tracker, etc), but I'd like to know what the power output terminal are. I suspect they're 1/4 studs, but would like to know for sure. Thanks in advance es 73, Mike WM4B
