Re: [Repeater-Builder] LMR-1200
On Tuesday 23 January 2007 13:13, Dan Blasberg wrote: > Anybody have any opinions on LMR-1200 as feedline? > > I have access to about 100' with N connectors at both ends, that I am > thinking of using for feedline. > > Thanks, > > Dan > KA8YPY I'd say thats a neat deal and I'd use it. It's a little less than .9dB per 100ft loss at 450MHz, so that should work well. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] posts showing up out of sequence
On Tuesday 13 February 2007 14:51:42 mch wrote: > A much faster internet with faster mail servers at YahooGroups. > > Joe M. > > radiomog wrote: > > and what > > would it take to see that messages show up in order and on a timely > > basis? The situation is pretty complicated. There are a lot of reasons why emails might not show up in 'order'. Really, your email program should be the thing that sorts and diplays emails. If you use Windws, Eudora and Thunderbird are far FAR safer to run than MS Outlook. Mail systems are frequently many machines working together, and if one of them gets bogged down for some reason its mail might be delayed getting out, even though other mails on the other machines in the system are fine. Mail systems today are *reeling* under the load of spam. It isn't possible to overstate this, and it has weird effects on everything mail related. Yes, there are times when I'd like to throttle Yahoo's email system but overall they do fairly well, and do a better job than most of weeding out spam. Lastly, don't forget that your ISP might be having problems as well, creating delays too. Your ISP has to deal with spam as well, and there are times when they aren't going to be dealing so well, either. Sigh. I remember simpler days when email systems were actually fun to administer... --STeve Andre' wb8wsf en82
[Repeater-Builder] Opinons on Andrew VXL5-50
I'm curious if the XVL version of LDF5-50 has any problems that I should know of. It seems pretty reasonable, and the price seems to be $1.95 a foot. If folks know of cheaper sources for N connectors for it, I'd like to hear about those. Thanks, STeve Andre' wb8wsf en82
[Repeater-Builder] Looking for advice on 1200MHz repeater antennas
What are good 1200MHz antennas for repeaters? Where is the line between quality and price? What should I avoid? tnx, --STeve Andre' wb8wsf en82
[Repeater-Builder] SPSS 15 codes
I hope you saw the SPSS CD in your mailbox. In case you don't still have them, the codes are s/n 9720071 SPSS15 4b2a832a14bb51604dd0 AMOS7 5e6c8c205c43610ffefd Do remember to check the time on the system before installing. Good luck. ;-) STeve
Re: [Repeater-Builder] SPSS 15 codes
OOPS! This is work mail, not ham mail. *SIGH* Sometimes, just too many things are going on at once in my life and it gets nuts. By the way, you *don't* want to run SPSS. Trust me. ;-) --STeve Andre' On Thursday 29 March 2007 17:50:46 STeve Andre' wrote: > I hope you saw the SPSS CD in your mailbox. > > In case you don't still have them, the codes are > > s/n 9720071 > SPSS15 4b2a832a14bb51604dd0 > AMOS7 5e6c8c205c43610ffefd > > Do remember to check the time on the system before installing. > > Good luck. ;-) > > STeve
Re: [Repeater-Builder] Cool or not cool?
On Tuesday 03 April 2007 11:04:33 Ken Arck wrote: > At 04:20 AM 4/3/2007, you wrote: > >Go ahead, but please keep it on topic... > > <Well, I'll keep it simple for the moment and save the gory > details should they be needed. > > Essentially, the situation involves a 2 meter remote base on a UHF > system being used to "monitor" a regularly scheduled Saturday swap > net that is conducted on a non-related linked repeater system. The > remote base simply monitors one of the 2 meter repeaters of that system. > > One of the "owners" of the linked system demands that the 2 meter > remote base owner "cease and desist" because he doesn't have > "permission" to rebroadcast the net and to do so is "illegal". > > The owner of the 2 meter remote base tells the linked system member > to go pound sand (in so many words) - there is nothing illegal about > using a remote base to monitor a linked system and that permission is > not needed. > > Who's right? > > Ken Amateur frequencies are fair game. The communcations act doesn't apply here, because amateur spectrum is OPEN, receive wise. What a crock. Even if the owner of the remote was doing something illegal with it (hard to imagine) it would be the FCC's responsibility, not the originator of the signal. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Re: Registered Sex Offenders
No Paul, a blanket statement like that is wrong. The owner of a repeater was wide latitude, but not complete. Try banning people of a certain race from a repeater, and see what happens. The owner of the repeater is not going to do well. --STeve Andre' wb8wsf en82 On Monday 11 August 2008 13:04:43 Paul Dumdie wrote: >The gentleman who says that you will end up > on the wrong side of a lawsuit is just plain wrong. > The repeater trustee may limit access by licensed > amateurs to a repeater for any reason - any at all AND > the is no recourse by the excluded amateur. Since the > FRRL Aurora IL has families with children and minors > who are amateurs we exclude all sex offenders from > our membership. > > Also -we hold meetings in public places known under > Illinois law as "safe zones" from which sex offenders > are excluded; they cannot be full voting members. > > Again, the gentleman who mentioned lawsuits is > completely blowing smoke - the banned amateur excluded > from repeater access has no legal standing - period - > end of story > > Paul R. Dumdie Jr. "73" > W9DWP/R IRLP-NODE-4455 > 443.025/2A 145.270/1B/1Z/NAC-293 > ARC-Radio-8 KCARES > HERD546 EX WB9QWZ > WQGG738 AAR5CU/T
Re: [Repeater-Builder] Portable Temporary Repeater
Sure it is. If you have a *genuine* emergency, you can go around the rules. Do you honestly think that the FCC is going to come down on you if you are directly dealing with a crisis, and didn't obey some rule, in order to better facilitate helping the situation? --STeve Andre' wb8wsf en82 On Tuesday 30 September 2008 12:46:05 [EMAIL PROTECTED] wrote: > and in an emergency, out-of-band operation is permitted, > right? NO > > > On Tue, Sep 30, 2008 at 10:59 AM, Dave Gomberg wrote: > > At 02:24 9/30/2008, Mike Morris WA6ILQ wrote: > > Why not run more repeater offset ? The further away you are the more > > isolation you have - and it's free. > > Here in SoCal we have a special portable 2m repeater pair coordinated > > - it's 144.93 out, and 147.585 in. That's over 2.5 mhz of offset, and > > you can get just over 3 mhz if you use 147.99 as your input. > > This brings up a very interesting point. IN A GENUINE EMERGENCY, > why not run a huge split, say 145.000 input, 175.000 output. I > realize the output is out of band, but MARS mods are widely > available, and in an emergency, out-of-band operation is permitted, > right? One would want to preselect a frequency where interference > with other emergency use is least likely, I also realize that not > all HTs have a wide-band receive capability, but lots do.
Re: [Repeater-Builder] N connector parts?
Yes, absolutely a great place. Joel can get just about anything connector wise, and tell you to get and not get. The url is www.therfc.com. --STeve Andre' On Wednesday 22 October 2008 22:29:36 Michael Ryan wrote: > RF Connection in Gaithersburg, MD. They also have the rubber washers, etc. > www.rfc.com -'73, Mike > > > > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Randy Brumback > Sent: Wednesday, October 22, 2008 10:11 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] N connector parts? > > > > Does anyone anywhere sell just the male pin and female pin for N > connectors? I have many good cases but because of arching I can't use the > pins. > > Randy > > W4CPT > > > > __ NOD32 3547 (20081022) Information __ > > This message was checked by NOD32 antivirus system. > http://www.eset.com
Re: [Repeater-Builder] OT: Radios and Coms in TV and Movies
On Monday 02 February 2009 16:37:48 wd8chl wrote: > MCH wrote: > > Illegal? They were foreign terrorists. How many foreign terrorists are > > going to give a rat's rear about compliance with FCC regulations. > > Uhhh...Bruce Willis' character was using it, along with just about > everyone using a handheld in the movie. > And there was definitely places where you heard receive audio come back > out of the radio. > > > The only part that was really far fetched is when John called the PD on > > "channel 9" - implying that they were using CBs and that the PD actually > > monitored channel 9. Oh, and that Al could talk to him on his police > > radios. > > I still remember an episode of Hawaii 5-0 where they were sitting on a > boat, and fired up the local AM radio station-on a Motorola PT200. Um, I don't think anyone can tell where the audio came from. Yes, using a ham HT is illegal *if it transmits*. But if they add the audio "from" the HT later, thats ok. Stuff like that is done all the time. Sure, they could have used ham frequencies, but they're used to the art of pretending-- they're movie makers. ;-) --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] looking for an Untenna (or two)
On Tuesday 10 March 2009 23:07:37 skipp025 wrote: > I'm looking for an Untenna (or two) > > Anyone got what I think is called an Untenna they'd like > to sell, trade, swap or otherwise part with? Actually > doesn't matter what band... I'm interested in measuring > the radiation angle and related performance. I might not > have the name/brand exactly right... > > It's an open round (fairly large tube diameter) coil with > one or two taps. The low band version fits under a radome > about the size of a small cake pan and I've not seen a vhf > or uhf version up close yet. > > I'd also be interested in your opinions if you own or have > used one. If you've got one you'd part with, please drop me > a note. > > thanks in advance for your replies. > > skipp Thats the direct driven ring radiator, right? I remember when they came out in the 70's or 80's for 2M use. They wern't very good as I remember them, about on par with a 1/4 wave antenna. They did look neat though, and sparked questions from people who saw them. Look at http://www.orionmicro.com/ant/ddrr/ddrr1.htm for more information. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Ridiculus
On Wednesday 08 April 2009 16:38:13 Lee Pennington wrote: > === > > THIS IS ABSOLUTLY REDICULOUS! > Of course it is. So was "The War of the Worlds". --STeve Andre' wb8wsfen82
Re: [Repeater-Builder] Re:Dayton
Adam, I'm a volunteer at the inside exhibits. Things were definitely better this year than last, and its recognized that there is still lots of room for improvement, especially in the flea market. Our ham club had problems getting flea market spots so I know of that pain, dealing with it personally. There were problems with the professional group too. Different, but still problems. The good news is that things are getting better. I'm convinced of that, having walked the floor Thursday evening and having talked with nearly every vendor in the east and north halls. Very few problems, and I was able to fix three of them myself by calling others. Not bad. --STeve Andre' wb8wsf en82 On Monday 18 May 2009 06:57:45 Adam T. Cately wrote: >Maybe one of the members of DARA reads this list... > >Years ago, when the club farmed out the running of the Hamvention to > a real business that new what to do, it was nice to have your vendor > packet in the mail by January, so that you could make your plans way in > advance and have all of your ducks in a row - the flea market was well- > organized and the help was there (and also the policing!) > >Since the club has taken over the duties, they have been very lax > as to actual hamfest service, as I truly believe that THEY think we all > will show up anyway, no matter WHAT level of service they give. > >I haven't been there as a vendor since then, and I don't think I'll > go back as a vendor until they change their attitude... > >(...READ - Don't hold your breath...) > > At 11:44 PM 5/17/09 -0400, you wrote: > >That said, this year was MUCH better than last year. > >Still, I hope there are many more improvements next year. > > > >Hint: Start planning it NOW and start putting > >anything needed for then together NOW. > > > >Joe M. > > > >Paul Dumdie wrote: > >> The folks that run the flea market spaces need to work harder on > > getting things sent out in a timely manor. > > > > > > > > > > >Yahoo! Groups Links > >- Adam -
Re: [Repeater-Builder] Re: Need tips for repeater performance
Adding to what Eric has said, ldf4-50 (and ldf5-50) can be had cheaply, cheaper than new lmr-400. Keep your eyes open and you'll find stuff. I went on a scavenging spree for my VHF weak-signal stuff; the best deal I got was 65 feet of LDF5-50 for $50. Next spring when I unrolled it, it was 130 feet, making for about .38 a foot. That was a great deal, with ldf5-50 more normally going for $1 - $2 a foot. LDF4-50 is cheaper yet, at about $1 a foot when you find a good price. Connectors for ldf4-50 were about $8 from a couple of folks in the flea market at Dayton, so with a little digging you can find those, too. --STeve Andre' wb8wsf en82 On Wednesday 17 June 2009 21:34:42 Eric Lemmon wrote: > Aisen, > > Changing the RG-8 to LMR400 will reduce the feedline loss by about 0.8 dB, > which is a small improvement, but LMR400 is known to cause major problems > in duplex service. RG-8 will have about 2.2 dB loss in 50 feet, and LMR400 > will have about 1.4 dB loss, at 458 MHz. A far better choice would be > Andrew LDF4.5 Heliax with 0.5 dB loss, or LDF5 with 0.4 dB loss. Lose the > RG-58 jumpers, and replace them with good, double-shielded cable such as > RG-400 or RG-214. These jumpers should be fabricated with the proper > high-quality connectors on each end (no barrels or adapters), and should be > no longer than necessary. > > What is the make and model of your duplexer, and of your antenna? > > 73, Eric Lemmon WB6FLY > > > -Original Message- > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of aisendwight > Sent: Wednesday, June 17, 2009 6:11 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Re: Need tips for repeater performance > > > > --- In Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> , "NORM KNAPP" > > Well, I guess this is called "A rookie decision"!!!. > > Sorry, it's been like 18 years since I had any contact with radio stuff > (back in my days as WP4MPS) now I'm back at the commercial level and I see > I've had a bad start (yeez) Well., I'll have to find some use for that > cable. Ok, keep it coming please... > > wrote: > > BATTLE STATIONS!! RED ALERT!! > > We got LMR-400 here! > > > > - Original Message - > > From: Repeater-Builder@yahoogroups.com > > <mailto:Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com> > > > > To: repeater-builder@yahoogroups.com > > <mailto:repeater-builder%40yahoogroups.com> > <mailto:repeater-builder%40yahoogroups.com> > > > > Sent: Wed Jun 17 19:41:18 2009 > > Subject: [Repeater-Builder] Need tips for repeater performance > > > > > > > > Hello everybody: > > > > I'm into increasing the performance of my repeater. I've already ordered > > 50 Ft. of LMR-400 to replace the cheap RG-8. Yet, I wonder if there is > something else I could do. > > > The Duplexer is pre tuned to my freq. (458.0 repeater RX / 453.0 repeater > > TX). The duplexer is connected to the radios (my repeater is built out of > two Motorola M120's) using RG-58 jumpers of about 24 inches long. Could > that be affecting performance? When I check the TX power thru the duplexer > I'm getting about 10W yet the TX radio is programmed for 30W. I know that > I'll lose some power with the duplexer, but seems to me that I'm losing too > much. SWR won't go below 2.1 no matter how much I adjust the antenna bays. > > > So, what could be done? I imagine that swapping the RG-8 for the LMR-400 > > will help but I still wonder if that would be enough. Any help will be > greatly appreciated. > > > Aisen
Re: [Repeater-Builder] Re: Heliax
On Sunday 05 July 2009 18:58:44 Curt Seaton wrote: > Good day folks, I have come across some LDF7-50A heliax with > commercially installed DIN connectors on each end. These are in 250 to > 300 feet coils and in good condition. Most have the grounding straps > already mounted. We also have the DIN to half inch pigtails available > and will be included with each cable run...If any interest please > let me know before the local club posts on ebay. These weigh several > hundred pounds and we prefer the buyer to make their own transportation > arrangements picking up in Norwalk, CT. 06851. There are 10 coils of > these and have super low loss at the UHF frequencies, please see the > Andrew specs for the LDF7 cable. These were in perfect operation > conditions when removed from the tower. I would rather see hams use > these rather than let them go to ebay or worse... I can send photos to > serious interested parties, but need to post with ebay be end of week if > no one else is interested. The place where they are stored is forcing > us to move them out of the current location and we cannot use them > all.. Many thanks for your consideration. > > Curt W1FSM Um, how much? --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Re: An advocate for a little audio compression
[snip] > > - Original Message - > > Subject: Re: [Repeater-Builder] Re: An advocate for a little audio > > compression > > > > > At 8/14/2009 17:54, you wrote: > > >>Sounds like, in essence, it was a closed repeater. Only those meeting > > >> some tough standards were allowed. > > > > > > Oh, it was very open. How tough can it be to simply speak up? > > > > > > Bob NO6B Well, I can think of at least two hams I've known with throat problems, such that they could not speak loudy. Yes, a pain but that was their disability. That repeater would have shut them out, which I consider rather unforunate. There is also the issue of emergencies: someone in some kind of accident (think auto) who either got a damaged mic, or is injured themselves, trying to use the repeater. While not likely in either case, its very real for that person if it happens. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] ACSSB
On Thursday 12 November 2009 07:34:08 n0fpe wrote: > One thing to remember. Amatuers are NOT authorized to use ACSSB above 30mhz. > Please check part 97 for the exact "modes" we are able to use. > heck if we were there would be tons of ACSSB repeaters already modified into > the ham band. No, thats not true. There are ARRL publications on acssb; at one point it was seen as a complement to FM repeaters, being able to fit inbetween the 20KHz spaced channels of repeaters. I'm not sure that was ever workable, but there was some effort (by amrad?) to disperse acssb equipment on 2m and maybe higher bands. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Off topic ... a time for God
On Saturday 21 November 2009 10:28:37 ki4zji wrote: > I am deeply offended by this. No, not the mention that we should take time > out for God. I am offended by the barrage of tirades assaulting Lee for > daring to mention God. *I* am deeply offended by having Christianity stuffed down my throat. I am not a Christian; I have never been--I was not raised as one, and I rather doubt that I will switch in this lifetime. So please take Jesus elsewhere and not a mailing list such as this. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Just a Crazy Thought
On Thursday 11 February 2010 21:29:25 i recycle computers wrote: > I have heard numorous urban legends of 27 MHz CB repeaters being built. > > has anyone ever come across such a thing. if not does anyone think it is > even possible from a technical standpoint? > > the limitations are AM mode, and using any of the 40 CB channels with 4 > watts PEP AM or 12 Watts PEP SSB ie: using completely un modified type > certified CB gear. > > Legally a repeater is illegal on CB, but i just want to do an excersize in > thought as to what problems someone may run into with such a project, etc. > > i have seen this questioned asked numorous times through the years and even > heard rumors of it actually being done. > > no one though has actually went deep into the technical aspects of such a > project or could point me out to the people who are operating or operated > such a setup. > > Thanks, > > Rev. Robert P. Chrysafis Duplexers would be interesting to get. I can imagine the look on some sales reps face, when asked about pricing for an 11m unit. But you could certainly do a split site, in on channel 1 and out on channel 40 (or whatever actual frequency would be the farthest). Think of 10m repeaters and you've got most of the idea, though interference on 11m might be worse. Or has 11m usage dropped a lot because of cell phones? Me, I've never heard of one in operation. --STeve Andre' wb8wsf en82
Re: [Repeater-Builder] Re: Silver plating of cavities advice please?
OK then, how about a 1919 threepence piece? ;-) On Monday 12 July 2010 14:04:22 Dave wrote: > "and a silver dollar" Good Lord manI'm English! > > --- In Repeater-Builder@yahoogroups.com, Barry wrote: > > If you have a stable dc supply some chemicals to make a pickle solution > > and a silver dollar the rest is easy > > > > google is very useful by the way -- STeve Andre' Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident.
Re: [Repeater-Builder] new member introduction
On Sunday 15 August 2010 02:27:17 ZephyrNYC wrote: > On Sat, Aug 14, 2010 at 20:32, Nate Duehr wrote: > > Very little, typically. Almost all have solid-state components that would > > be utterly dead after an EMP. Tube gear that survives EMP better is > > virtually all gone. And user radios are required for any repeater to be > > useful, and they'd all be totally dead too. > > Nate, your assessment then is that all repeaters within range of an EMP > would be wiped out? Having talking with some folks who were charged with calculating the effects of EMP, a rough guideline is that anything you want to survive be buried in at least 20 feet underground, and more is better. An EMP is going to seriously screw us up. I think radio communications is farther down the list of problems if we get hit by one. Food, for one is going to be hard to move around. Of course, stuff things in the ground will work, gven the effort, AND not having a second one, say a month after the first, when you've taken items out of storage and are using them. Lately I'll point out that unless a lot of folks prepare in this way, it won't much matter if you've saved some stuff, will it.. > > > > > "So... the rest of your posting sure sounds like an advertisement for > another list, which is generally bad Netiquette, unless the lists had > something a little bit more in common." > > If an EMP can wipe out all repeaters, I would say that EMP has everything > to do with repeaters. > > > > > even though your "From" is a pseudonym. > > >> Personally, I find pseudonym-bearers on the Internet usually need this > >> advice: "If you want to be somebody else, change you mind." Seriously. > >> Or at least have the pseudonym match something you are, or something you > >> do. > > My email address is ZephyrNYC. "Zephyr" is the West Wind, and was my first > DJ name. NYC is for the city of my birth. I would say that matches who I > am and something that I do. > > If all repeaters can be wiped out by an EMP, the only way I can think of to > prepare for one then is to store spare repeater components inside a Faraday > cage or similar container and hope that there isn't a successive EMP after > the first one. > > > 73, > > Frank kF2ANK > > > > "Security is mostly a superstition. Avoiding danger is no safer in the > > long run than outright exposure. Life is either a daring adventure or > > nothing." ~ Helen Keller <http://en.wikipedia.org/wiki/Helen_keller> > > > > > >- Amateur Radio Portable Operations Group > >http://groups.yahoo.com/group/ARPortable/ > >- EMP (Electro-Magnetic Pulse) & Preparedness > >http://groups.yahoo.com/group/EMPprepare/ > >- Great Outdoors Radio Club http://groups.yahoo.com/group/gorc/ > >- Ham Radio Help Group > >http://groups.yahoo.com/group/HamRadioHelpGroup/ > >- Military and Commercial Portable Radios > >http://groups.yahoo.com/group/milpack/ > >- Survival Communications http://groups.yahoo.com/group/survivalcomm/ -- STeve Andre' wb8wsf en82 Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident.
Re: [Repeater-Builder] Polyphaser Question
This has been a great discussion. Eric, from the reading I've done it didn't seem to me that the Polyphasers were the best out there, but a European company whose initials were S + H, I think. Care to comment on the best ones, in your opinion? On Tuesday 17 August 2010 21:53:30 Eric Lemmon wrote: > Mike, > > Perhaps the best course is to choose the unit with the highest Joule rating > that meets your power level and frequency ratings. Do not buy a DC-blocked > unit if you don't need that feature, because the capacitor is usually the > first component to fail. Do not buy a used unit, because it was pulled > from service for a reason- probably because the gas tube has reached the > end of life due to multiple firings. Finally, be certain that you have a > robust grounding connection from the PolyPhaser to Mother Earth; do not > depend on the "green wire" conductor in the power cord to provide this > connection. > > 73, Eric Lemmon WB6FLY > > -Original Message- > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan > Sent: Monday, August 16, 2010 11:51 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Polyphaser Question > > I notice when looking at the Polyphaser website, there are a wide range of > products, even a wide variety of items that on the surface appear to be > suited to my particular needs. I want to put a Polyphaser on my 220 > repeater. There are DC blocked and unblocked. I don't suppose it matters in > that area as there is no DC going up the coax. There are freq ranges, > 1.5-400 and 100 - 700 mhz, etc, etc.. Is it best to select a model that > places my operating freq somewhere in the middle of the unit's operating > range or does that matter as long as it IS WITHIN the range of the device > someplace? I need the protected end to be an N-female and the antenna end > to be and N-Male. Suggestions? - Mike -- STeve Andre' Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident.
Re: [Repeater-Builder] ScotchkoatR
Radon *is* very dangerous if you smoke. It gets stuck in the tar that its smoker's lungs, being radioactive... I know about the philosophy of being scared of everything, however. But that doesn't obviate the real dangers of a lot of chemicals, substances that a lot of is techie oriented people used earlier in our lives. So while MEK is cool, I use it with great caution and protection. --STeve Andre' wb8wsf en82 On Tuesday 08 January 2008 12:46:38 Paul Finch wrote: > Jim, > > One thing, same thing about Radon gas. What happened to that, it was > supposed to kill thousands. Someone made a killing off the test kits. > Again duped by the news media. > > Some people get cancer from breathing. > > Paul > > > -Original Message- > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Jim Brown > Sent: Tuesday, January 08, 2008 11:40 AM > To: Repeater-Builder@yahoogroups.com > Subject: RE: [Repeater-Builder] Scotchkoat > > Take it seriously when they say something has been > proved to cause cancer. I have a buddy who lost his > leg to cancer and they traced it back to a solvent he > used as a jet engine mechanic in the Air Force. He > managed to live through it, but minus a leg. They > proved beyond a doubt that it was the solvent that > caused the cancer. Sorry I don't remember just which > solvent it was - > > 73 - Jim W5ZIT 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] Repeater, service monitors and other stuff for sale
On Wednesday 09 February 2005 00:34, [EMAIL PROTECTED] wrote: > Does this sound fishy to anyone else? Or is it just me? > > > In a message dated 2/7/2005 4:25:12 PM Central Standard Time, > [EMAIL PROTECTED] writes: > > Ham radio items for sale; > > My father passed away about a year ago, he left me quite a collection > of electronic gear and radios. > I never really had too much of an interest in the radio or [snip] Well, aren't older hams dropping like flies? Sorry to be blunt, but I've been reading of a lot of hams passing away lately. I keep on finding folks I haven't talked with since some Dayton in the 80's or so, and feeling sad about them Friends I'm not going to see again. So why should this not be real? Don't forget, there is fraud EVERYWHERE. The best fraud looks the most polished of all. --STeve Andre' wb8wsf 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/
Re: [Repeater-Builder] antenna opinions
On Thursday 10 February 2005 04:18, Jed Barton wrote: > Hey guys, > OK, need some input. > I've got a killer repeater sight. > The antennas are going up on a telephone pole. > I can't put up big monster station masters. > What's the next best thing, diamond or hustler? > I've got a 220 and 440 repeater. > Any ideas? > Then the big question i have a 100 foot run of cable. > Do i go with half inch or 7 8ths inch cable? > Any ideas? > Thanks, > Jed The answer for the feedline is always get as high quality, low loss as you can afford. Given those two diameters it sounds like you might have LDF4-50 and LDF5-50. The 5-50 is always going to be lower loss, so I'd use that at 440 and 4-50 at 220. There was just talk of hustler antennas. See the archives for those comments. Our club used one for a "temporary" 2M antenna (which lasted at least 6 years) and did well. Others have had less good luck however. --STeve Andre' wb8wsf 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/
Re: [Repeater-Builder] which kind of cable coax should I use?
On Sunday 13 February 2005 23:37, Miguel wrote: > Hello everyone > > thanks for reading my post.. > > I have a uhf repeater in the ham band... I want to know which is a > good cable coax to use to minimized the swr and good communications.. > > some people tell me the lmr-400 others the rg-213 > > but which one is better or is there something else... > > thanks > > 73 > > Miguel,Ai4em You can't minimize the SWR with coax--well, you could but only by having coax so lossy that the returned RF is dissipated by the loss coming back, which is definitely not good. ;-) You don't say where you are, but in the US Andrew "Heliax" is frequently available at really good prices, usually less than $1 per foot for the 1/4" ldf4-50. If you look on the net for surplus dealers on the net you can find buys like this fairly often. Connectors can be found at cheaper prices, too. There are other kinds of Heliax as well; ldf5-50 is 7/8" and even lower in loss. Thats harder to find but just today at a swap I got 65' of ldf5-50 with N connectors for $50. Great deals are out there when you get lucky! There was a lot of talk on this list about the reasons why LMR wasn't good for repeater use. See the archives for that. Given the cost of Heliax these days, I'd use that. --STeve Andre' wb8wsf 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/
Re: [Repeater-Builder] New poll for Repeater-Builder
I'm not going to "vote" on this. Russ is expressing himself, and though I completely disagree with him, HE HAS THE RIGHT TO SAY SO. It is one of a myriad of opinions on how to build a repeater. That you--or a group of others on this list--don't like it is irrelevant. If you don't like what he says, delete the mail. Stop whining about it. Russ has not been abusive about it, he hasn't harassed people with sending 78 emails a day on the subject, etc. I for one can listen to many points of view and draw my own conclusions. I do not need people like you to tell me what is useful on this list. --STeve Andre' wb8wsf On Friday 25 March 2005 14:54, Repeater-Builder@yahoogroups.com wrote: > Enter your vote today! A new poll has been created for the > Repeater-Builder group: > > Russ is on my last nurve because he says > people that build repeaters from > commercial components isn't really > "building". I'm wondering if we need a > guy like Russ as a member of this forum? > Should Russ stay, or should he go? > You decide The poll will end April > 1, 2005 > > o Stay > o Go > > > To vote, please visit the following web page: > http://groups.yahoo.com/group/Repeater-Builder/surveys?id=1731910 > > Note: Please do not reply to this message. Poll votes are > not collected via email. To vote, you must go to the Yahoo! Groups > web site listed above. > > Thanks! > > > > > > > > > > > > > > Yahoo! Groups Links > > > 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/
Re: [Repeater-Builder] 2 meter repeater
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 <*> 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/
Re: [Repeater-Builder] 2 meter coors?
On Thursday 31 March 2005 00:53, william wrote: > hi im new here but wondered if anyone thinks i would have a chance at > getting a 2 meter repeater on a freq one use to be on in this area a > few yrs ago then removed because the owner moved ? > thanks william No one here can possibly answer that. It all depends on where you are. If you live in Wyoming, I'd bet you might be able to. New York City, and I'll bet not. You have to talk with your frequency coordinator. --STeve Andre' wb8wsf 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/
Re: [Repeater-Builder] Caution on Bomar Crystals
Probably because it's true. There are things you can skimp on in a repeater and get lesser performance, and there are things which if messed up cause all sorts of problems, for both the repeater users and others. A crystal is definitely one of the latter. Getting cheaper coax means degraded performance, but it isn't going to affect others. Sadly, you can't really experiment much on the lower repeater bands. Mess up a repeater on 6, 2, 222 or 440 frequency wise and you're likely to find out. This happened to a system in west Michigan once. We were driving around and I tried getting into the local repeater and found I couldn't. I heard someone on but sounding off freq, so I started hunting around and found that the input had drifted more than 10KHz high. Once there I was able to get in, but not sounding great. Talking with the owner on a 440 system, he'd gotten new crystals, not from ICM because he thought he couldn't afford it. This was during the 15 to 20KHz changeover for repeaters. I'm sure he learned something from that experience, and I did as well. What I'd been taught from the repeater folks I'd been hanging around proved right in reality. Running a repeater is a certain amount of pain. I'm willing to see what I can get away with too, but there are things that I won't try to skimp on and this is one of them. --STeve Andre' wb8wsf On Tuesday 10 May 2005 23:40, Steve Rodgers wrote: > Why is it a common theme for some in this group make a statement such as > > this?: > > If you cannot afford International, you cannot afford to put a repeater > > on the air. > > What a fine piece if discouragement this is for the people just learning to > put a repeater together. Ham radio is all about experimenting to see what > you can get away with. It is not a commercial endeavour where crystals have > to meet 2.5ppm! If the crystals don't perform to your expectations from one > vendor, try someone else. > > Steve > WA6ZFT > > > > > > > Yahoo! Groups Links > > > 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/
Re: [Repeater-Builder] Heliax Prices
On Monday 11 July 2005 22:49, Scott Overstreet wrote: > I have an excess of 7/8 inch Heliax here that I need to sell and haven't a > clue as to what the going price is on this stuff. The condition is dent > free and clean-a couple of 300 foot and several shorter around 100 feet > each lengthsno end connectors. > > We have a monthly electronic flea market here-what price per foot or > whatever should I ask? > > Scott, N6NXI The price varies all over the place. I bought a 100 foot section with a flange connector and DIN for $149, so $1.50 a foot. I later bought what was advertised as a 65 foot section, with connectors, for $50. The roll turned out to be 130 feet, with an Andrew N female connector on it! That made it about as cheap as 9913F7. I've since heard of a ham with connections to the cell world selling 5-50 for about 90 cents a foot. Connectors seem to be really rather harder to get these days. --STeve Andre' wb8wsf en82 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/
Re: [Repeater-Builder] APC-7 - N adaptors
On Tuesday 12 July 2005 20:42, Mike Perryman K5JMP wrote: > Dave, > I went through a mess a while back where one guys in our shop used Radio > Shack connectors on my APC to N-female adapters... needless to say, he > destroyed them. I searched high and low and finally wound up ordering from > Agilent. As I recall they were somewhere in the range of 325.00 each. > > Shortly after they arrived, I was talking to Joel at RF-Connection, and he > said he sold them at a substantially lower price. > > The R.F. Connection > 213 N. Frederick Ave. Suite 11-W > Gaithersburg, MD 20877 > USA > > Tech Support (301) 840-5477 > Orders (800) 783-2666 > 24 hour Fax (301) 869-3680 > > I am in no way connected with RF-Connection, just sharing the source... > I hope Joel can help you out.. > > Mike > K5JMP I'll second RFC as a place to get things. I've been very happy with the stuff I've gotten and Joel probably can get APC7 anything, knowing him, and at a good price. --STeve Andre' wb8wsf en82 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/
Re: [Repeater-Builder] change of OS
If port 5000 is blocked at your perimeter firewall, you have a little time to patch your win2k systems. I block all of the MS diseased ports (135, 137, 138, 139, 445, 593, 1433, 1434, 4899 and 5000) in both directions. It's helped my Windows sheep, a lot. ...I'm sooo glad that I don't run Windows myself. ;-) --STeve Andre' wb8wsf en82 On Tuesday 16 August 2005 20:56, Mark A. Holman wrote: > I just checked they are running WIN 2000 that they were being attacked. > > Mark > > skipp025 wrote: > >There a fairly new virus out now that has knocked out > >many of the ABC Network computers here on the west > >coast Today. Good luck if you're running windows... > >I'm sure you'll hear about it in the news very soon. > > > >cheers, > >skipp > > > >>Joe Grace <[EMAIL PROTECTED]> wrote: > >>Or time to dump Windows, go linux or mac. Seriously. > >> > >>Joe - W1SK (Another IT Student) > >> > >>On Aug 15, 2005, at 8:21 PM, Mark A. Holman wrote: > >>>Time to dump IE and get Firefox also Thunderbird, I made the > >>>switch and never regretted it 8-) this pix can be > >>>decoded on Thunderbird . > >>> > >>>also run virus scan, clen the cookie file and run Adaware, > >>> > >>>Mark H. AB8RU IT Student > >>> > >>>Neal Newman wrote: > >>>>QRZ.com is working I just tried it// > >>>>Neal-ka2caf > >>>> > >>>>Doug W7FDF wrote: > >>>>>I tried earlier this morning [around 830am Thursday]. I tried just > >>>>>before I left home [this morning] for work [around 1230pm] and I > >>>>>tried > >>>>>tonight [just a few minutes ago] at 1030pm PST]. No QRZ. com! > >>>>> > >>>>>...where [website] are they? > >>>>> > >>>>>Doug W7FDF > >>>>>Vail, Arizona > >>>>> > >>>>>PS: I just "reset" my browser, did a router and pc reset and > >>>>>stillno website. No...I WILL NOT loose sleep over not > >>>>>bringing up > >>>>>QRZ...just curious. > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>>Yahoo! Groups Links > >>>> > >>>>Yahoo! Groups Links > >>> > >>>YAHOO! GROUPS LINKS > >>> > >>> Visit your group "Repeater-Builder" on the web. > >>> > >>> To unsubscribe from this group, send an email to: > >>> [EMAIL PROTECTED] > >>> > >>> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > >Yahoo! Groups Links 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/
Re: [Repeater-Builder] mods.dk (possiably OT)
I was under the impression that the payment was to keep the system alive. I don't know about Denmark specifically, but in Europe the cost of net bandwidth is rather higher than in the US. Those dollars the site is getting are, I think, going to keep the place running. I understand the idea of everyone grabbing a few files such that collectively, 'we' have them all, but in the US copyright issues are a thorny issue. *Every* file there should be assumed to have a copyright, and if the document in question does not specifically say that its OK to post it, it is NOT a good idea to take it and post it elsewhere. This of course does not apply to anything that says it has been placed in the Public Domain, but even then, I know a lawyer who dealt with a case of a file that said it was PD when in fact it was not. In order to create a new site, it is very advisable to contact every author and get their permission for posting, and also to have them put their license in the file at the header. If you can't get ahold of the author, it shoudn't go on the site. Anything written by someone now dead is still copyrghted by their estate, or can be. Failure to heed stuff like this can result in a "DMCA take down notice" The DMCA is the Digital Millenium Copyright Act. If you want to be nauseated, read it. I'm not a lawyer but I've dealt with stuff like this on the net before. I will shut up now. --STeve Andre' wb8wsf en82 On Wednesday 01 February 2006 02:00, Richard wrote: > Me too. > > Richard > > -Original Message- > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] Behalf Of Dick > Sent: Tuesday, January 31, 2006 5:23 PM > To: Repeater-Builder@yahoogroups.com > Subject: Re: [Repeater-Builder] mods.dk (possiably OT) > > > Works for me, Rich. > > 73, > > Dick > > - Original Message - > From: "Richard D. Reese" <[EMAIL PROTECTED]> > To: > Sent: 31 January, 2006 17:05 > Subject: Re: [Repeater-Builder] mods.dk (possiably OT) > > > I do not know how many files are on mods.dk but - there are over 2700 > members of this group. If each member were to download a file or two we > would have all of them. The files could then be posted together elsewhere > and remain available for free. > > Just a thought. > > 73 Rich > http://www.wa8dbw.ifip.com > - Original Message - > From: "Q" <[EMAIL PROTECTED]> > To: > Sent: Tuesday, January 31, 2006 5:49 PM > Subject: Re: [Repeater-Builder] mods.dk (possiably OT) > > > > > > > > > > > Yahoo! Groups Links > > > 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/
Re: [Repeater-Builder] OT: Dayton Fleamarket space prices?
On Saturday 25 March 2006 23:08, Paul Finch wrote: > Hello, > > I know this is off-topic but I don't know where to ask this question. I > have sent a email to the Hamfest folks by the way, who knows if they will > respond. > > Has anyone looked at the space price listed on their website? It is a > graduated price scheme, the more spaces you buy the more it costs you! The > price for 3 spaces is almost twice what 2 spaces costs! > > Why do they do that? They seem to me to be the highest priced Hamfest, > anyway this price scheme is just strange! Who is getting rich there? > Somebody must be! > > Paul I strongly suspect that the price ramp up is to encourage more smaller spaces and thus increase the diversity of equipment. I can remember when friends had real problems getting into the flea market. I'm pretty sure there were a lot of double and triple space sellers say 10 years ago. If you think that this doesn't make sense, you should be emailing the people there. Looking at the web site it seems that [EMAIL PROTECTED] and [EMAIL PROTECTED] would be good places to direct your feelings. --STeve Andre' wb8wsf en82 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/
Re: [Repeater-Builder] Dayton time line...
It never ceases to amaze me, how the "dayton is moving" rumor mutates and spreads around. The owner's of Hara have no intention of selling, nor the does the Hamvention organization want to leave. I bumped into some folks last Dayton (litterally) who were (are) hara folks. Hara is doing at least OK; take a look at their wenb site: they have 8 events for April taking up 14 days. Thats not bad at all for such a place. The best way to make Dayton continue is to get new folks down there. My wife and I have been averaging one person per year for the last several years now, with two getting their licenses there. We did some volunteer stuff last year, and I think it was obvious, the commitment they had to improving the show. We plan on doing that again this year. --STeve Andre' wb8wsf en82 On Monday 27 March 2006 11:52, skipp025 wrote: > Last year or the year before I heard that the Hamvention > has a 5 year deal already signed... so no one is going > anywhere for 3 or 4 more years... > > skipp > > > Wonder what's up with that! I heard something about the > > owners of the arena want to discontinue the Hamvention > > and sell the property or something like that. That was > > two years ago the last time I was at Dayton. > > > > I've been hearing those rumors since the 70's. > > Yahoo! Groups Links > > > 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/
Re: [Repeater-Builder] A couple of questions about hard line
On Monday 24 April 2006 10:37, David wrote: > I have some hard line I that a friend gave me and was wondering how to > determine if it is any good? and how to determine what connectors to get > for it? What to look for to determine this? What kind is it? It should be listed on the jacket. In general, N and PL259 connectors for most kinds of coax can be found for not a whole lot of money on Ebay. I've also found good deals at swaps. If the coax is unterminated, look into it with a flashlight. If you can see water marks on it, you probably have something which at least needs the ends chopped off to get around the water damage, to having a somewhat worthless chunk of copper. Even hard line with no obvious damage can be bad; I found that out the hard way once. Really, the best way to test it is to stuff some connectors on it and see what the loss is with a watt meter. --STeve Andre' wb8wsf en82 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/
Re: [Repeater-Builder] RG-213 versus RG-214 in a Sinclair Duplexer
RG214U is available for $2/foot over at the RF Connection. I really like those folks. So, judging by their web site (therfc.com), it's a stock item. Not exactly cheap, but how many feet do you need for a reharness project... --STeve Andre' wb8wsf en82 On Monday 10 July 2006 11:35, va7aa wrote: > I agree with everything that is said about RG214... but the trick is to get > some at a decent price... if you can get it at all. What jobber is gonna > sell a guy 10 or 15' of RG214u cable that is hard to get in the first place > special for his duplexer reharness project. You would have to get it > from a mail order house at a small quantity premium, if they will sell a > small lot at all. Does anyone on here have some to sell? > > I suggested brand new shiny RG8u because Sinclair are not idiots and have > been using that stuff for years in their product$. You and I will probably > be 6' under pushing up dasies, tweaken duplexers and filters in St. Peters > presence before the next batch in your rehaness job starts to go skunky > then theres repeater hell... heh heh > > VA7AA > - Original Message - > From: Jeff DePolo > To: Repeater-Builder@yahoogroups.com > Sent: Sunday, July 09, 2006 8:06 PM > Subject: RE: [Repeater-Builder] RG-213 versus RG-214 in a Sinclair > Duplexer > > > Every technical source I have indicates that the shield coverage on > > RG-214 > > > is no better than RG-213 at 97% which doesn't make a lot of sense > > physically > > > unless the shield weaves are different for the two cables. > > The M17 spec for RG-214's shield is 95.7% for the inner braid and 98.0% > for the outer. Here's the complete spec: > > Outer conductor: Double braid of AWG no. 34 silver-coated copper wire. > > Diameter: .360 inch maximum. > > Inner braid > > Coverage : 95.7% nominal > Carriers : 24 > Ends : 6 > Picks/inch : 16.6 +/- 10% > > Outer braid > --- > Coverage : 98.0% nominal > Carriers : 24 > Ends : 7 > Picks/inch : 15.4 +/- 10% > > When overlaid, the total shield coverage would be 99.914% if my math is > right. > > The silver plating is what makes RG-214 advantageous over RG-213 in a > duplex environment moreso than just the difference in braid coverage with > respect to shielding effectiveness. Movement of the braid strands against > each other doesn't make nearly as much noise with the silver plated strands > of RG-214 as compared to bare copper RG-213. And as the cable ages and the > braid strands tarnish (oxidize), the difference becomes progressively > greater as silver oxide is a very good conductor unlike cupric oxide (or is > it cuprous, I forget, cupric oxide is black-ish and cuprous is red-ish > IIRC). > > Of course, the additional shielding effectiveness of RG-214 is also a > good thing in terms of maintaining isolation in a duplexer harness or > between cables running adjacent to each other. > > Phelps-Dodge used RG-8 and RG-213 in many duplexer interconnects (PD696 > and PD526 come to mind), but later changed to RG-214. I've replaced the > cables on a number of these older duplexers picked up surplus and at > hamfests with RG-214, not wanting to even take the chance on the old 20+ > year old RG-8. > > I have two VHF Wacom duplexers not presently in use. One says "Modified > RG-214" on the coax, the other just says "RG-8". I presume the former is > just double-copper-shielded RG-8. If I were to put either of them into > service I'd change the harness without even giving it a second thought... > > --- Jeff > > > > > > > --- >--- > > > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.10/383 - Release Date: > 07/07/2006 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/
Re: [Repeater-Builder] VHF or UHF repeater
I tend to agree with that. I'll also add that 220 seems to be the best when you're trying to communicate around a lot of trees. The smaller antenna size from 2M meant that I could have better yagis. Lastly, 1200 around trees is a great way to not talk very far in a forest. ;-) --STeve Andre' wb8wsf en82 On Thursday 27 July 2006 23:04, Gary Pearce KN4AQ wrote: > My experience using a lot of repeaters and running a few is just what > you're saying - in the city, a UHF repeater will hear HT's better from > inside buildings and cars. Out in the boonies, the VHF repeater will yield > better distance. > > There are a lot of factor at work here. I'm sure somebody will correct me > if this is just an urban legend, but the shorter UHF wavelength signals > will escape though the small aperture of windows and metal reenforcement > better than the longer VHF wavelength signals. Meahwhile, the VHF signal > will curve a bit over the horizon better than the UHF signal. > > This is among the reasons the city police departments went to UHF, while > the county and state police tended to hang out on low or high-band VHF > (although the availability of repeater channels may have had as much to do > with that). > > 73, > Gary KN4AQ > > At 08:55 PM 7/27/2006, you wrote: > >Hi everyone.. > > > >Just need to ask for some expert opinions on the usage of VHF or UHF > >band repeaters.. Which of the two serves better range? Which of the two > >serves better for coverage (as in thru walls, or blocked areas)? > > > >I've heard that UHF is better in terms of coverage, while VHF is for > >range.. is that true? Why is that? Why UHF would serve a better > >coverage than VHF? > > > >I'm asked to build a repeater for our city usage. Am considering to use > >VHF or UHF.. please advice..:) > > > >Thank you > > __ > Gary Pearce KN4AQ > Cary, NC > 919-380-9944 > [EMAIL PROTECTED] 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/
Re: FW: Read: [Repeater-Builder] Stuck cores
Heh. I have to agree. For those who aren't computer nerds, Outlook (and IE) are truly dangerous problems, fraught with problems and security holes. Yes, they look nice, but they're as unsecure as they are nice to the end user. Everyone is encouraged to look at Eudora and Thunderbird for email, and Firefox for web browsing. Eudora is commercial, but there is a free version which is great, and Firefox/Thunderbird are open-source programs which you can freely and legally give to all your friends. Please consider using them; they make using Windows less of a security horror. Oh, and if you use instant messenger software, try gaim. It speaks all the popular protocols (yahoo, icq, msn...) and is a lot safer security wise. Google for those terms and you'll find out where to get them. If anyone has questions send me private mail and I'll help. It's important that people stop using dangerous software. --STeve Andre' wb8wsf en82 On Wednesday 06 December 2006 21:18, Ken Arck wrote: > At 05:56 PM 12/6/2006, you wrote: > >I don't know what this is, but I don't think I sent this message... Maybe > >someone is spoofing my address. > > <---Personally, I think anyone who runs MS Outlook should be drawn > and quartered and their remains fed to zoo animals while their family > members are required to watch and provide the ketchup > > I'm sorry and apologize if that offends anyone. I know I'm not being > tough enough on 'em.. > > Ken > > > > > > > Yahoo! Groups Links > > >
Re: [Repeater-Builder] FYI: FCC officially issues R&O dropping code requirement today
And the start of another. It is entirely possible to *increase* the number of CW using hams because of this. It's possible to snare folks into the hobby, and then, just when they think they're secure in the lack of a need to ever learn code-- ...They find something that uses it, and the spark of a reason as to why it might be a good idea to learn it ignites... The rest of this is up to us, however. We need to welcome these changes and then find ways to hook them onto CW and all the other wonderful modes we have. It IS possible. All is takes is imagination on our parts. --STeve Andre' wb8wsf en82 On Friday 15 December 2006 21:46, Bob M. wrote: > Oh well, the end of an era. Boo-Hiss. > > Bob M. > == > --- Joe Montierth <[EMAIL PROTECTED]> wrote: > > > > http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-269012A1.pdf > > > Techs get tech+ privs, code test gone for general > > and > > extra. > > > > Joe > > __ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > > > > > Yahoo! Groups Links > > >
