Re: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek?
It didn't share the same key, the RCA key was the same general shape as the CH-751 but would not work. The RCA key was called an RCA1 key. 73 everybody Mike KB5FLX - Original Message - From: Bill Hudson To: Repeater-Builder@yahoogroups.com Sent: Sunday, August 29, 2010 9:57 PM Subject: RE: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek? I didn’t know that RCA shared the CH751 key with the Cabinet key for Motorola Outdoor cabinets. This could be an error. Bill Hudson W6CBS Any of these keys can be duplicated at your local locksmith. From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Pointman Sent: Sunday, August 29, 2010 6:07 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek? Ah yes...the old BF-10aI have one.. a little beat up, would love to have a pristine one, just in case. KM3W -- From: MCH m...@nb.net To: Repeater-Builder@yahoogroups.com Sent: Sun, August 29, 2010 4:52:58 PM Subject: Re: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek? GE = BF10A RCA = CH751 Joe M. Pointman wrote: Like most of the commercial stuff of that era, the unit was locked into a car or truck instead of bolted in. It made for an easier repair to just unlock it rather than unbolting everything. It sat in a cradle with the locking mechanism that WAS bolted to the car body. GE and RCA also had their keys...GE's was a B210/810? Maybe..? its been a while since I handled any of that old stuff KM3W -- *From:* Chuck Kelsey wb2...@roadrunner.com *To:* Repeater-Builder@yahoogroups.com *Sent:* Sun, August 29, 2010 12:50:18 PM *Subject:* Re: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek? It simply locks the cover in place. You'll want a key anyway. Chuck WB2EDV - Original Message - From: KP3FT kp...@yahoo.com mailto:kp3ft%40yahoo.com To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Sunday, August 29, 2010 12:09 PM Subject: [Repeater-Builder] dumb question: what is purpose of lock on Mitrek? Hi, I know it's a dumb question, but after scouring the internet for info, I find everything about locks and replacement keys for Motorolas and other radios, but I still don't know what locking the Mitrek actually does. Does it kill all power to the radio, or disable certain functions? I'm asking because I just acquired a low-band Mitrek that I need to power up and verify its working condition. It doesn't have a control head, so I need to use the front panel pins, but if the radio is locked, I may end up getting nowhere and still not know if it's either the radio that is bad, it is locked out, or I wired it wrong. This is the first Mitrek I've had. Thanks for any help. Jeff KP3FT Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG - www.avg.com http://www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3100 - Release Date: 08/29/10 02:34:00
Re: [Repeater-Builder] Neat kit for switching repeater devices
Hey Eric, The circuit board to the right in your picture; Is that the controller and if so, what brand and model ? Tnx, Mike KB5FLX - Original Message - From: Eric Lemmon To: Repeater-Builder@yahoogroups.com Sent: Saturday, May 01, 2010 7:28 PM Subject: RE: [Repeater-Builder] Neat kit for switching repeater devices Larry, My first use of this thermal switch was on a solar-powered Motorola R1225 UHF repeater at a commercial site. I simply drilled and tapped two 4-40 holes on a flat portion of the outside fin, and mounted the thermal switch after applying some heat-conductive paste. I used a three-inch low-EMI Panasonic fan blowing right on the fins. This is a 45-watt repeater set for about 30 watts output. It went into service early in 2003, and has been trouble-free ever since. I have attached a picture of what it looks like. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Larry Horlick Sent: Saturday, May 01, 2010 11:56 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Neat kit for switching repeater devices Eric, This is good info. I have an immediate use for this. How have you actually attached this 'stat to the fin? Larry On Sat, May 1, 2010 at 2:36 PM, Eric Lemmon wb6...@verizon.net mailto:wb6...@verizon.net wrote: Scott, I must agree that the CK1614 is an extremely versatile timer, with many potential uses. However, using it for fan control is not only expensive, but unnecessary. A fan blowing on a transmitter heat sink does absolutely nothing immediately after the transmitter is keyed, since the heat sink is likely at ambient temperature. It takes a period of time for the heat sink to warm up, so operating the fan prematurely is a waste of energy- which may be an issue for a solar-powered repeater. IMHO, the most efficient means of fan control is also the cheapest: A thermal switch. My first choice is a Cantherm #R2005015 normally-open thermostat that closes at 50 degrees Celsius, about 122 degrees Fahrenheit. When attached to a heat-sink fin, it turns the fan on when necessary, and keeps it on until the heat sink cools below about 100 degrees F- around body temperature. This particular switch is available from Digi-Key for about $9, as Catalog Number 317-1094-ND. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of na4it Sent: Saturday, May 01, 2010 9:38 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Neat kit for switching repeater devices I have started using this little kit (http://www.electronickits.com/kit/complete/elec/ck1614.htm http://www.electronickits.com/kit/complete/elec/ck1614.htm http://www.electronickits.com/kit/complete/elec/ck1614.htm http://www.electronickits.com/kit/complete/elec/ck1614.htm ) for fan control on repeaters. I can also be used as a PTT and Time Out circuit, along with a lot of other uses. Download the pdf on that site and check it out. Scott NA4IT
Re: [Repeater-Builder] Building a notch duplexer with notch cans.
Hi All, If you have a tracking generator and can check the notch skirts to see if that will give enough isolation between freqs on the notch cans, You could use the 2 or 3 notch cans on the TX side to notch the RX freq, then use the 2 or so pass cans on the RX side. Hope this helps and good luck, MikeKB5FLX - Original Message - From: kd4wov To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 23, 2010 5:38 PM Subject: [Repeater-Builder] Building a notch duplexer with notch cans. Hello All, I am building a duplexer for use on 150.125 tx and 150.625 rx. this ia for a mars machine. Yes i know this is a tough squeeze but this is what got allocated to us for now. i currently have 9 notch cans and 4 pass cans available. the machine originally had 4 pass cans and a split of over 4 Mhz. When i measured the system it has about 30db rejection with 4 pass cans. I think it would be best to set the pass cans aside and go with notch cans, i could be wrong. I have come to the point where we are getting things ready to build. As far as i can tell playing with the cans using oddball length cables (i know it will not be accurate, but it was a test) i need at least 3 notches on each side to make it work at an acceptable level. my 2 questions is : 1) what should be my cable lengths between cans. 2) what should my cable length between the cans and the antenna tee?
Re: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement
On the spectras, if you keep using the radio after the caps go bad, it can damage the audio ic chip. The popping is one of the symptoms as well as distorted audio. Another thing I have seen is a tantalum chip cap that is the isolator cap between the audio chip and the previous chip. Just follow the audio-in line backwards from the audio chip to find it. ( am doing this from memory and not looking at a book or would give part numbers) The audio chip from mot last time I bought one was about $24.00 dealer price if I remember right. Hope this helps. Happy Thanksgiving Everybody !!! Mike Specialized Communications KB5FLX - Original Message - From: Tim Ahrens To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 24, 2009 10:32 PM Subject: RE: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement Hi David, Is the Hear Clear board only on the 900 mhz spectras? I was looking in my service manual, and it talks about the board plugging into P501, but on my VHF spectras, this plug is unpopulated.. As a side note, when I went to replace the capacitors, I noticed that a fire ant had given it's life while spanning a couple of pins on the audio output TDAxxx part. There seemed to be some 'liquid ant residue' remaining, so perhaps it damaged the audio amp. I guess I'll have to look at the thing with the scope see what's going on in comparison to one that works 'correctly'. Thanks! Tim
Re: [Repeater-Builder] Re: pre-amp placement
The main way of thinking is that you want to put the pre-amp after the band pass filter. The reason for this is that if it is before the b/p filter, it amps anything it sees, noise and unwanted stuff alike. If its behind the b/p filter, it only amps the signals that are left and need it. You might need to add a several DB attenuator between the pre amp and the receiver to keep from overdriving the front end. Advanced Receiver Research makes very good low noise preamps as so do several other companies. Hope this helps, Mike Specialized Communications KB5FLX - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Wednesday, November 25, 2009 11:36 PM Subject: [Repeater-Builder] Re: pre-amp placement Hello John, W3ML w...@... wrote: Hi, not since high school... :-) I have now read two different things about where to put the pre-amp. Only two? One says before the Bandpass and one after. What I have now is the 6 can duplexer is hooked to the bandpass and then on the other side the pre-amp is connected and then a cable goes from preamp to radio. The other article I read this past week says the preamp should go between the cans and the bandpass. Which is right? Or does it matter? Depends and it does matter... based on how busy your radio site is, where any other rf activity is relative to your frequency, the type of preamplifier, how it's constructed, your receiver front end, your duplexer type with number of cavities, your Tx Power level and a few other tidbits... got a headache yet? I'd venture to say... if your receiver front end is of decent Q (quality) and reasonably narrow band-width along with a decent duplexer... then the preamp might best go after the duplexer, between it and the band-pass cavity. If your receiver front end is average or fairly broad (a few MHz band-width) there might be a case to include the extra band pass cavity after the preamp before the receiver input. Some of this option depends on the duplexer and TX Power Level. The point of what I write above is about trying to obtain the best overload prevention performance and or damage control when the preamplifier is overloaded and generating unwanted signals. Many but not all the variables are are in the list. You could of course try both positions and measure the system performance. s.
Re: [Repeater-Builder] Re: Programming of X9000 with Handheld controller
No Problem, Glad you got it figured out. What you said about the HHCH for the dual radio 9000 was the one I was talking about that had the grey box on it, I think it is called a SIU box. I have one of them. If I remember right, the one you have is either a 32 or can go 64 channels with moving a jumper. I have the suitcase programmer for those if you need it. 73, Mike KB5FLX - Original Message - From: tahrens301 To: Repeater-Builder@yahoogroups.com Sent: Wednesday, September 16, 2009 11:28 PM Subject: [Repeater-Builder] Re: Programming of X9000 with Handheld controller Hi Mike, BUSTED! Man, I gotta eat crow on this one... I've had X9000s on the brain for a couple of months now, by golly, if that sticker was a snake, it would'a bit me. First clue.. I had never seen a control board like the one that is in this radio... that shoulda' been an indication that something wasn't right! I had never seen a Syntor X, frankly, thought it was in a different case. Guess that's why it didn't dawn on me to even pay attention to the sticker. Tunnel vision! I even got some extra light so I could read the model number. Talk about the forest the trees! The X9000 did have a provision for a HHCH... it was used in a dual radio configuration - VHF UHF radios.. I even have the book. I guess that didn't help me out with the main issue tho. Anyway, thanks to all who endured the questions with a really dumb answer! Now I gotta go to Batlabs respond to somebody else that figured it out. Yum, this crow tastes like chicken!! Tim
Re: [Repeater-Builder] Re: Programming of X9000 with Handheld controller
Does it actually say syntor X9000 under the handle ? It sounds more like a regular syntor X. If so, it will have a little module inside the radio that plugs into the main board with either a white or orange sticker on it and the serial number on it. The external boxes are as you stated, the 1 with the led light pipes and holes is for the external scramble module which you say is not there and jumpered out. The rib box is nothing but a junction box for all the wires. If the radio box is a X9000, that is not the right head for it as the 9000 had to have the regular 9000 display head or if it did have the A3 HHCH on it, it had to have the little grey control box to operate the radio. If you want, you can contact me off list about it m.dietr...@peoplepc.com Mike KB5FLX - Original Message - From: tahrens301 To: Repeater-Builder@yahoogroups.com Sent: Tuesday, September 15, 2009 10:59 PM Subject: [Repeater-Builder] Re: Programming of X9000 with Handheld controller Hi Mike, There are actually two boxes between the radio the HHCH. One is a little smaller than a siren box, and has cutouts for something that looks like perhaps a key hole, plus some other cutouts places for LEDs to shine through, although inside the box is only two connectors with PCB jumpers between them. (HNN4015A) The second box looks like a RIB box case. (HLN1170A SP01). Inside there is a PCB with some traces what looks to be places for perhaps an EPROM, but there is nothing populated but connectors jumpers. I've looked at all of the documentation here on Batlabs, but nothing talks about the programming of the radio. Thanks! Tim W5FN --- In Repeater-Builder@yahoogroups.com, Mike Dietrich m.dietr...@... wrote: If it has a little grey box the size of the siren box, in the middle with a key on the front and a bunch of db-9 and db-25 connectors on the back, you have to have special software to talk to the radio and the grey box. Mike - Original Message - From: tahrens301 To: Repeater-Builder@yahoogroups.com Sent: Tuesday, September 15, 2009 1:22 PM Subject: [Repeater-Builder] Programming of X9000 with Handheld controller Hi Folks, I put this out on Batlabs, but haven't heard anything, so I thought I'd try here. I got a couple of VHF X9000s that have the hand held controller, with Securenet stuff inside. I've programmed many 'normal' X9000s before, but can't seem to get this guy to talk. (the computer isn't the issue, as I have been using same old dos computer for a while). I just get the error message Serial Bus Error, Busy Line locked. any clues? Thanks, Tim W5FN
Re: [Repeater-Builder] Programming of X9000 with Handheld controller
If it has a little grey box the size of the siren box, in the middle with a key on the front and a bunch of db-9 and db-25 connectors on the back, you have to have special software to talk to the radio and the grey box. Mike - Original Message - From: tahrens301 To: Repeater-Builder@yahoogroups.com Sent: Tuesday, September 15, 2009 1:22 PM Subject: [Repeater-Builder] Programming of X9000 with Handheld controller Hi Folks, I put this out on Batlabs, but haven't heard anything, so I thought I'd try here. I got a couple of VHF X9000s that have the hand held controller, with Securenet stuff inside. I've programmed many 'normal' X9000s before, but can't seem to get this guy to talk. (the computer isn't the issue, as I have been using same old dos computer for a while). I just get the error message Serial Bus Error, Busy Line locked. any clues? Thanks, Tim W5FN
Re: [Repeater-Builder] FS: ICOM 220 Repeater and Waycom Duplexers - Taking to Findlay
Shannon, Please contact me off list about this if you do not sell it there. Thanks, Mike KB5FLX - Original Message - From: Shanon KA8SPW To: Repeater-Builder@yahoogroups.com Sent: Saturday, September 12, 2009 6:20 PM Subject: [Repeater-Builder] FS: ICOM 220 Repeater and Waycom Duplexers - Taking to Findlay Hello Group, Taking this to Findlay tomorrow, I will be in the flea market area. Driving a Ford panel van, dark burgundy. This repeater will be on the air if I can get a power hookup and it don't interfere with another one. 224.800 Out 223.200 In with a PL of 107.2 ICOM RP-2210 Repeater N connectors, 15 pin D connector for controller. Full ORIGINAL service manual. DOES NOT INCLUDE A CONTROLLER - (Will be using my NHRC-2 for demo) Wacom Duplexers BpBr - Model 652 Ordered on frequency from Waycom Original Calibration sheet and Tuning Instructions Package includes: Repeater and Duplexers with RG-142 interconnect cables and Polyphaser arrestor. Both are like new. Over $2000 new, Asking $1000 Free with Repeater: 6' Motorola rack with 1/4 brass plate on top for 4 Polyphasers, two locking doors and key. TE Systems Repeater Amplifier - NOT WORKING M#2210R 222-225 MHz NOT WORKING (I got it that way) For purchase separately if wanted: Hustler G7-220 antenna NEW out of box. NEVER assembled. $100 (Will not sell unless repeater is sold.) If this don't sell right away I may relocate it, but there is no 220 activity in the area anymore. It going back to my basement is not going to happen, the wife wants a freezer, no room for both! Next up are my TM742's with 220 modules, only going if the repeater sells. Shanon KA8SPW Garden City, Michigan 15 miles west of Detroit
Re: [Repeater-Builder] FS: ICOM 220 Repeater and Waycom Duplexers - Taking to Findlay
Shannon, Forgot to include email address in previous..hit send too quick. m.dietr...@peoplepc.com Mike - Original Message - From: Shanon KA8SPW To: Repeater-Builder@yahoogroups.com Sent: Saturday, September 12, 2009 6:20 PM Subject: [Repeater-Builder] FS: ICOM 220 Repeater and Waycom Duplexers - Taking to Findlay Hello Group, Taking this to Findlay tomorrow, I will be in the flea market area. Driving a Ford panel van, dark burgundy. This repeater will be on the air if I can get a power hookup and it don't interfere with another one. 224.800 Out 223.200 In with a PL of 107.2 ICOM RP-2210 Repeater N connectors, 15 pin D connector for controller. Full ORIGINAL service manual. DOES NOT INCLUDE A CONTROLLER - (Will be using my NHRC-2 for demo) Wacom Duplexers BpBr - Model 652 Ordered on frequency from Waycom Original Calibration sheet and Tuning Instructions Package includes: Repeater and Duplexers with RG-142 interconnect cables and Polyphaser arrestor. Both are like new. Over $2000 new, Asking $1000 Free with Repeater: 6' Motorola rack with 1/4 brass plate on top for 4 Polyphasers, two locking doors and key. TE Systems Repeater Amplifier - NOT WORKING M#2210R 222-225 MHz NOT WORKING (I got it that way) For purchase separately if wanted: Hustler G7-220 antenna NEW out of box. NEVER assembled. $100 (Will not sell unless repeater is sold.) If this don't sell right away I may relocate it, but there is no 220 activity in the area anymore. It going back to my basement is not going to happen, the wife wants a freezer, no room for both! Next up are my TM742's with 220 modules, only going if the repeater sells. Shanon KA8SPW Garden City, Michigan 15 miles west of Detroit
Re: [Repeater-Builder] Looking for a RCA series 700 or series 1000 mobile radio, VHF-Hi (150-174 split)
Hey Matt, I still have a number of these in the storage bldg. They are the 1000 series high power series tray units. I don't know if I have any of the covers and base plates left and will have to dig to see for cables and heads. You can contact off list directly m.dietr...@peoplepc.com Will let you know, Mike KB5FLX - Original Message - From: kc5dbh To: Repeater-Builder@yahoogroups.com Sent: Thursday, September 10, 2009 3:32 PM Subject: [Repeater-Builder] Looking for a RCA series 700 or series 1000 mobile radio, VHF-Hi (150-174 split) Hi Everyone! I'm looking for an RCA Series 700 or Series 1000 mobile radio, 4 channel, VHF Hi-Band, with control head, mic and, cabling and, brackets (or as close as anyone can get to that). I want to restore one of these radios to working condition for the display shelf in the radio room. I have a couple extra Series 1000 low-band mobiles by themselves (no control heads, etc) if anyone is interested. Thanks, Matt
Re: [Repeater-Builder] (OT) Dynamic Range (WAS: APCO P25 horror stories anyone?)
Does anybody have a copy of this TIME WARP CD you are talking about, that they would share ? Sounds neet. Thanks in advance. Mike - Original Message - From: Mark To: Repeater-Builder@yahoogroups.com Sent: Thursday, April 09, 2009 2:51 PM Subject: RE: [Repeater-Builder] (OT) Dynamic Range (WAS: APCO P25 horror stories anyone?) Mike, Funny you should mention Telarc... I have the disc titled Time Warp (Erich Kunzel and the Cincinnati Pops Orchestra) The disc has a prominent WARNING on the front label that read: Warning! TIME WARP contains some of the most powerful signal content ever released on a commercial recording. Please refer to the caution notice on Page 10. The Page 10 notice reads: Telarc Digital Compact Discs, especially those containing substantially wide dynamic range, will present an extraordinary challenge to all stereo systems. Certain components - even the finest - may have problems with the most demanding passages. *Damage could result to speakers or other components if the musical program is played back at excessively high levels..* WARNING! Lower levels are recommended for initial playback until a safe level can be determined for your equipment. The first musical passage, called Ascent, starts with what can best be described as a SHARP thump/chime. A friend of mine bought the disk and blew up out speakers the first time he played the disc... Apparently he didn't heed the warning, eh? hehehehe Over the years, my old stereo system has been retired, piece by piece. One of the last to go were me matched pair of Utah HS1-C speakers. I hated to see them go, but then again, my hearing isn't what is was back then, either... so I can't appreciate them like I used to be able to. :-( -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Mike Morris WA6ILQ Some thoughts that are even more slightly off topic... 1000 recordings to hear before you die http://www.1000recordings.com/book/ And my stereo is also hollow-state mostly Heathkit but with new filter caps. I remember looking at the output of an early high-end CD player (Sony? I forget) on a scope. It had tremendous dynamic range. Much better then vinyl or even 7.5ips magnetic tape. Totally wasted with todays music. The only thing I could find that would max it out (i.e. run the output from rail-to-rail) was a Telarc 1979 CD of the 1812 Overture featuring REAL cannon. The CD case insert said that the producers were able to track down some of the original type of cannon that would have been used then. And it specifically warned that the recording could damage speakers. The Deutsche Gramophone recording of the same piece is almost as good - both bottomed out my subwoofers. Around the 4th of July some years PBS shows the old WGBH tape of the 1990 (or so) Boston Pops 4th of July show. The later years have the show at night but this is an late afternoon / early evening show and at the right point you can see John Williams picking up a handheld radio that he had on his music stand and cuing the Massachusetts National Guard that was sitting on the far side of the Charles river with multiple 155mm howitzers firing blanks. Not quite the same, but very impressive. They still do it - some years it's the Guard, other years it's the Army, other years it's appropriate era cannon. http://www.flickr.com/photos/antydiluvian/2178640689/ You can hear the cannons in this video of the last few minutes of the 2006 performance: http://www.youtube.com/watch?v=tzL_BY39vf0 Unfortunately you can't see much. Eleven civil war cannons (about a minute and a half) http://www.youtube.com/watch?v=LSyOumYb0wY The Japanese Ground Self-Defense Force Eastern Army Band and 1st Artillery Unit use 105mm cannons: (about 4 min) http://www.youtube.com/watch?v=w-4SRvGUtn8 (watch the flagmen giving cues in the second round of shots) BTW, how many folks know that the 1812 Overture (full title: Festival Overture The Year 1812 in E flat major, Opus 49) is about France invading Russia during the Napoleonic Wars? Despite being a staple at July 4th events it has nothing to do with any US / UK battle. We now return you to our (OT) APCO P25 horror stories thread. Mike WA6ILQ
Re: [Repeater-Builder] (OT) APCO P25 horror stories anyone?
No, Probly Big M found an out for them to cancel the M/A Com deal and upped the kickback amount to the right person so they would buy from them instead. Mike - Original Message - From: wd8chl To: Repeater-Builder@yahoogroups.com Sent: Tuesday, April 07, 2009 10:43 AM Subject: Re: [Repeater-Builder] (OT) APCO P25 horror stories anyone? Gary Glaenzer wrote: - Original Message - From: wd8chl To: Repeater-Builder@yahoogroups.com Sent: Tuesday, April 07, 2009 10:12 AM Subject: Re: [Repeater-Builder] (OT) APCO P25 horror stories anyone? And M/A-Com is suing the state because they DID meet the original specs/requirements, and the state is just trying to back out of spending the money. Crooked gov't? naaahhh... must be Illinois... close-NY ;c}
Re: [Repeater-Builder] (OT) APCO P25 horror stories anyone?
Hello all, Big M just installed a P25 800 trunking system here that is a 5 site simulcast system. The M radios (xts2500 xtl5000) seem to work fairly well most of the time but there have been some totaly garbled too. Trying to listen on a scanner is another story, as is more garbled and sounds like Donald Duck talking if it picks up at all. The delay in audio from the vocoders between radios through the system is terrible . This delay causes problems if you have units in close proximity to each other where the other radios can be heard. I have heard that this delay really fouls things up when you have units on a scene like a wreck or fire where there is outside speakers being used..sounds like Reverb on steriods (if anybody remembers what reverb is). Most fire depts do switch to an analog direct channel for on scene comms because of this. Mike - Original Message - From: Gareth Bennett (Ihug) To: Repeater-Builder@yahoogroups.com Sent: Monday, April 06, 2009 5:58 AM Subject: [Repeater-Builder] (OT) APCO P25 horror stories anyone? Hello Group, As P25 is being rolled out worldwide, I have been hearing many stories regarding P25 shortcomings...Such as Vocoder problems in high noise situations, Jitter and Multipath issues from users that have converted from their legacy Analog systems, etc . The repeater issues (If any) are especially interesting for me, and would be very interested in hearing feedback from my colleagues from around the globe. Best regards to all Gareth Bennett
Re: [Repeater-Builder] Motorolla R2200/R2400 Service Monitor extender card question?
If anyone has more than one, I could use one also. Thanks in advance, Mike Dietrich KB5FLX m.dietr...@peoplepc.com
Re: [Repeater-Builder] Celwave 633-6A-2N Tuning down to 441 / 446
Brian, It's been a while since I've tuned one to remember how low they will go, but yes they will go to 441/446 without any problem unless there is something wrong with it. Mike KB5FLX Specialized Communications - Original Message - From: bbe...@aol.com To: Repeater-Builder@yahoogroups.com Sent: Thursday, April 02, 2009 9:34 PM Subject: [Repeater-Builder] Celwave 633-6A-2N Tuning down to 441 / 446 Hi all! I have a Celwave 633-6A-2N duplexer with a bandwidth of 450-470. Has anyone had any luck/success taking this down to 441tx/446rx? This is a 6 cavity, band reject 50w mobile duplexer. Thanks Again! 73, Brian -- Feeling the pinch at the grocery store? Make dinner for $10 or less.
Re: [Repeater-Builder] Mobile Repeater
The first problem that comes to mind with usin the MTR2K is that in that environment youdon't need the HIGH Power of that unit. 1) You're not ging to be covering that far from a command post. 2) The high power will trash or desense everything else in that band and maybe other radios in close proximity to it. 3) I believe a lot of people have commented the the repeater does weird things or is unstable if the power is turned way down on it. 4) At that height your receive range is not going to be that great so you don't need a big transmitter. With so many radios and antennas in close proximity to each other in a command post and all possibly operating at the same time, your main consideration is interference. Just my 2c worth, Mike Dietrich KB5FLX Specialized Communicatoins - Original Message - From: rahwayflynn To: Repeater-Builder@yahoogroups.com Sent: Saturday, March 21, 2009 10:18 AM Subject: [Repeater-Builder] Mobile Repeater I was asked by a Technical Rescue group to help them set up a repeater for a mobile command post they are building. The chassis is MCI bus, so it's not going off road. Here's the notes: * The are licensed in commercial UHF. * The bus has both 12V and 24V available from 2 different battery sets * The have access to a commercial style rack with shock mounts * Their hand-held radios are all HT1250, multiple varients. Some of the members have opted to install Motorola Spectra radios in their POV. * The have access to an MTR2000 station and a Kenwood TKR850 from a local car dealership. The can pick either, the other goes to another non-profit. * The antenna is an looks like an RFS BA1012 on a 20' push up pole (they are attempting to obtain a 60' Wilburt mast from a television station) I'm leaning toward the MTR2000 as has better specs and it a high power unit (will not require an external PA). Is there something I am missing in pointing them at the MTR station? Martin
Re: [Repeater-Builder] Mobile Repeater
Sorry for the mis-spelled words in the reply email, stupid keyboard acting up. have a great day all, Mike
Re: [Repeater-Builder] Mastr Exec II question
Yes you can, all rf parts are interchangeable. IF/AUDIO is different but most parts themselves are the same. Mike KB5FLX - Original Message - From: k1jcnh To: Repeater-Builder@yahoogroups.com Sent: Monday, March 16, 2009 12:11 PM Subject: [Repeater-Builder] Mastr Exec II question A friend has a VHF rptr implemented using a GE Mastr Exec II mobile. The receiver is gone. Can I use a reciever form a straight MastrII mobile to replace it? Are they plug compatible? Thanks, Joe K1JC
Re: [Repeater-Builder] For Sale 3 GE Mastr II Stations ICOMs
Charles, I am interested in the service monitors . Mike KB5FLX m.dietr...@peoplepc.com -- - Original Message - From: Ham-Radio To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 04, 2009 4:51 PM Subject: RE: [Repeater-Builder] For Sale 3 GE Mastr II Stations ICOMs Don, I have an IFR-1000S that works. Needs a new battery. Neg. on price. I also have a Motorola R2600C. Works great, only needs calibration. Do you still live in Boise, ID? Charles Miller WD5EEH Dallas, TX
Re: [Repeater-Builder] Micopr PA wanted
Are you asking for a micor PA deck. If you are looking for the station one that has 4 transistors, That was classified as a 75 pa for station use. It is the same as the 100 watt version used in the mobile but is for intermittant duty use. I will check, I think i still have a spare in stock. Will check and let you know if that is what you are looking for. Mike - Original Message - From: Com/Rad Inc To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 04, 2009 5:25 PM Subject: [Repeater-Builder] Micopr PA wanted 4 March 2009 hello Group Anyone have for sale a Mocor 100 w UHF PA - continous duty 450-470 range Pls state price and condition Ed Folta Com/Rad Inc
[Repeater-Builder] Re: manual needed
Hi all, Does anybody have a spare hard copy manual for a MOT VHF MCS2000 that they would sell ? Thanks in advance, Mike KB5FLX m.dietr...@peoplepc.com
Re: [Repeater-Builder] Searchng for GE Power Supply Diodes
try mouser electronics in mansfield, texas Mike - Original Message - From: Laryn Lohman To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 25, 2009 10:52 PM Subject: [Repeater-Builder] Searchng for GE Power Supply Diodes One of the GE 30A supplies in our repeater has a shorted diode. A search of the junque box and a number of other places has not provided a source for a suitable stud anode diode. Either the answer is absurdly obvious or these diodes are relatively rare. An archive search revealed nothing about diodes for these supplies. A good source? Laryn K8TVZ
Re: [Repeater-Builder] Somewhat OT - How to make HDTV *really* work
All of this talk about DTV is irrelvent..because TV IS ONLY A FAD and IT WILL NEVER LAST ! Or at least that's what they said when it came about ...way back then. Just a little humor for the day . Ya'll have fun. Mike - Original Message - From: Barry To: repeater-builder@yahoogroups.com Sent: Monday, February 23, 2009 5:22 PM Subject: RE: [Repeater-Builder] Somewhat OT - How to make HDTV *really* work -- To: Repeater-Builder@yahoogroups.com From: n...@natetech.com Date: Mon, 23 Feb 2009 12:53:32 -0700 Subject: RE: [Repeater-Builder] Somewhat OT - How to make HDTV *really* work If it does take that long, then we're a country full of idiots, who probably need to watch less TV and read more books anyway. :-) Nate WY0X The scary thing is you are correct , I don't understand how hard some make it -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Milt Sent: Monday, February 23, 2009 5:02 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Somewhat OT - How to make HDTV *really* work It will take at least a generation to straighten this mess out IF over the air television survives. Milt N3LTQ -- Get what you want at ebay. Get rid of those unwanted christmas presents!
Re: [Repeater-Builder] Got some noise from a fan in the system
I've made this same setup many times. I usually mount a fan blowing directly on the TX radio. I then put a 50 ohm 10 watt power resistor in the line to the fan with a 1000 uf capacitor 25 volt capacitor to ground on the fan side of the resistor. This setup will take out most or all of the dc noise, depending on the fan you use This setup slows the fan just enough to cut down on some of the fan wind noise as well as making the fan last longer. Hope this helps, Mike --- - Original Message - From: Dakota Summerhawk To: Repeater-Builder@yahoogroups.com Sent: Thursday, February 19, 2009 10:02 PM Subject: [Repeater-Builder] Got some noise from a fan in the system Morning, I have a couple of M-10 radios run together with a 12VDC fan keeping them cool in the cabinet. However the power block has them all run into the same line fed by the power supply. You can hear the noise of the fan when you key the repeater. Would a filter help this on the positive line of the fan? Or maybe a coil to filter the noise? I am at a loss as to what might keep the system cool but also eliminate the noise of the fan as well. Thanks for the help in advance. Peter Summerhawk
Re: [Repeater-Builder] Duplexer Cable Length / Recomendations
Trevor, RG-214 is what most duplexer companys use for inter-cabeling. If you can find some RG-9 that would be a good choice also. The 214 is prob the best choice as is prob a little easier to get. Mike - Original Message - From: Trevor Raty To: Repeater-Builder@yahoogroups.com Sent: Sunday, February 15, 2009 3:52 PM Subject: RE: [Repeater-Builder] Duplexer Cable Length / Recomendations Well what would be a good choice? Just saying its bad is really useless information. Trevor -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Sunday, February 15, 2009 1:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Duplexer Cable Length / Recomendations I plan on using LMR-400 as I have it readily available - Is this a good choice? NO The answer for whomever asks next week is the same - NO. Yahoo! Groups Links __ Information from ESET NOD32 Antivirus, version of virus signature database 3853 (20090214) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 3853 (20090214) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] Re: need manual
Hi everybody, Does anybody have a spare hard copy manual for a SPECTRA tabletop base with the telco remote option that they would sell? Thanks in advance, Mike
Re: [Repeater-Builder] Re: need manual
Forgot to add800mhz would be nice but any band is ok. Thanks, Mike -- - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Thursday, February 12, 2009 5:27 PM Subject: [Repeater-Builder] Re: need manual Hi everybody, Does anybody have a spare hard copy manual for a SPECTRA tabletop base with the telco remote option that they would sell? Thanks in advance, Mike
Re: [Repeater-Builder] Re: Site Insurance Vendors
So what everybody is saying isSHOOT ALL THE LAWYERS so we will all be better off and be able to have repeaters on building tops ? Just my 2c worth. Have a Nice Day !! Mike
[Repeater-Builder] Re: manual needed
Hi ALL, Does anybody have an extra hard copy manual for a Uniden MRS 804 800 mhz repeater they would sell. Can contct off list at m.dietr...@peoplepc.com Thanks, Mike KB5FLX
Re: [Repeater-Builder] Re: Are you ready for narrowbanding?
As long as you turn the modulation down to 2.5kc dev max, that meets the narrowband requirements. The only reason for changing the I.F. filters is to re-gain the amount of recovered audio out the speaker that you had before. Or you can just turn up the volume on the receiver. If you cahnge the filters, it does help with adjacent channel interference if someone is close to you in freq. Mike - Original Message - From: w7...@comcast.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 17, 2009 3:50 PM Subject: Re: [Repeater-Builder] Re: Are you ready for narrowbanding? Hello Group, Isn't it true that the radio must be on the List of type excepted units? I have a brochure for the Midland syn1 radio that says it is capable of the 12.5 kHz splits and Narrow dev. (2.5kHz). I was told that the Syn1 was NOT on the list of type excepted radios. What about the Moto HT-1000? Have heard that some of the later serial numbers were narrow band accepted. Is there a list from NTIA or that tells which radios are going to be Legal to use on narrow band fxs? I guess just because you can change the I.F. filters, and knock down the deviation, some rigs just won't fly. 73's de Tim W7TRH Wa. -- Original message -- From: Chuck Kelsey wb2...@roadrunner.com They are. I am one that says there won't be a huge flood of radios hitting the surplus market. Everything sold in the past 10 (or more) years has been narrow band capable right out of the box. Chuck WB2EDV - Original Message - From: n...@no6b.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 17, 2009 1:26 AM Subject: Re: [Repeater-Builder] Re: Are you ready for narrowbanding? At 1/16/2009 13:38, you wrote: I absolutely do. There's a TON of non-narrowbandable equipment in use, and we're not just talking about Micor/MastrII vintage equipment. Maxtacs, MSF's, even early Quantars and MastrIII's. Pretty much anything made before, I think, 1996-ish. Why would Micors Mastr IIs be non-narrowbandable? http://www.com-spec.com/narrow.htm Bob NO6B
Re: [Repeater-Builder] Decibel Products Antenna website
Hey Brian, Just saw your post here. I noticed you were asking about prices. Are y'all needing a new vhf antenna ? If so, Contact me off list. Mike KB5FLX - Original Message - From: Brian K. Gaskamp To: Repeater-Builder@yahoogroups.com Sent: Thursday, January 01, 2009 11:36 AM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Ok guys here's another good question in realtion to the Decibal Products antenna. Why is it on one site I looked at to get a quote it says, For Export Only Brian KA5BKG - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:10 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Yes, the DB420's (in omni configuration) came with the top four pairs rotated 90-degrees from the bottom four. A DB-408 (in omni configuration) alternated the rotation for each element pair. It also shows this way in the photos in the catalog. Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:37 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website On most of the ones I've seen, the model numbers were the same for both models. All of the elements can be rotated 90 or so deg if you want, but these are ones that came form the factory that way. ? Mike KB5FLX
Re: [Repeater-Builder] Decibel Products Antenna website
On most of the ones I've seen, the model numbers were the same for both models. All of the elements can be rotated 90 or so deg if you want, but these are ones that came form the factory that way. ? Mike KB5FLX - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 9:27 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Mike - I often wondered the same thing. I can only assume that it created the best pattern for each model. Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:16 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website While on the subject, a DB queston for y'all. I've asked a lot of techs this over the years and have gotten as many different answers. On a DB 410/420 uhf 16 loop antenna, some were sold with the top 4 sets of elements together in a row and the bottom 4 sets were in a row but were 90 deg to the top 4. On some other antennas they were sold where each set was 90 deg from each other, ie: element sets 1,3,5,7 were pointed together and 2,4,6,8 were pointed together. Does anybody know the real resaon? Is one way better than the other? Do they have different patterns? Thanks and HAPPY NEW YEAR to everybody. Mike
Re: [Repeater-Builder] Six Meter Repeater Noise Issues
Hi To All Hope everybody had a good Christmas, While the subject was brought up, I have been having a similar experience here at my location. It is not on a repeater, but a simplex radio (vertex VX3000l mobile) for a base on the natl Red Cross freq of 47 mhz. In the daytime the receiver is quiet and hears fine. It seems as about the time the sun starts going down, the receiver's squelch opens and has a constant static noise for many hours but still receives fine. It may do it all night, I don't know, I haven't stayed up to see, just leave the radio on and go to bed. Was wondering if could be power line noise (but why wouldn't do in daytime also)? Is there any interference to the HF bands like this at night? Thanks, Mike KB5FLX
Re: [Repeater-Builder] Six Meter Repeater Noise Issues
No, No strretlights, Rural area. Mike - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 25, 2008 1:09 PM Subject: Re: [Repeater-Builder] Six Meter Repeater Noise Issues Could it be a nearby street light? Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 25, 2008 2:06 PM Subject: Re: [Repeater-Builder] Six Meter Repeater Noise Issues Hi To All Hope everybody had a good Christmas, While the subject was brought up, I have been having a similar experience here at my location. It is not on a repeater, but a simplex radio (vertex VX3000l mobile) for a base on the natl Red Cross freq of 47 mhz. In the daytime the receiver is quiet and hears fine. It seems as about the time the sun starts going down, the receiver's squelch opens and has a constant static noise for many hours but still receives fine. It may do it all night, I don't know, I haven't stayed up to see, just leave the radio on and go to bed. Was wondering if could be power line noise (but why wouldn't do in daytime also)? Is there any interference to the HF bands like this at night? Thanks, Mike KB5FLX
Re: [Repeater-Builder] Six Meter Repeater Noise Issues
No, They died a long time ago. It seems like if that was it, it would be doing all the time and not just at night. Mike - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 25, 2008 1:31 PM Subject: Re: [Repeater-Builder] Six Meter Repeater Noise Issues How about touch lamps? Chuck - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 25, 2008 2:19 PM Subject: Re: [Repeater-Builder] Six Meter Repeater Noise Issues No, No strretlights, Rural area. Mike
Re: [Repeater-Builder] Re: fan timer circuit
Sounds like the best thing to do is a combination of both the PTT and Thermodisk versions together. That way the fan starts blowing when users start using the repeater. Then the thermodisk takes over after it heats up until all traffic quits and the tx'er cools down. Just my 2c worth. Merry Christmas everybody!! Mike
Re: [Repeater-Builder] Doug Hall 4RV Voter
Yes Kevin, I am interested, contact me off list to discuss. Mike KB5FLX m.dietr...@peoplepc.com --- - Original Message - From: Kevin Berlen, K9HX To: Repeater-Builder@yahoogroups.com Cc: repeat...@yahoogroups.com Sent: Saturday, December 20, 2008 1:47 PM Subject: [Repeater-Builder] Doug Hall 4RV Voter I have available a DHE 4RV 4 receiver voter system. Please note that this is an older generation than the 4RV/2 which is currently being produced. This system consists of a 4RV voter, a VCM, and power supply in a 19 inch rack mount. It was removed from a site that was decommissioned and was not hooked up, so I do not know the operational status. If interested, please e-mail me direct, off list. I would prefer a trade, but all offers considered. Thanks and 73, Kevin, K9HX
[Repeater-Builder] Re:800 MHZ RECEIVER
Hello to the group, I am trying to make a maxtrac or gtx 800 radio receive down on 813 mhz which it normally doesn't reveive on. All of the software says it's out of range and won't accept it. Any ideas whether it will work and/or how to do it? Thanks in advance, Mike
Re: [Repeater-Builder] test equipment theft
There is a Mot 2670 monitor for sale on flea bay right now in central NJ but can't read s/n in listing. The item number is 230313035399. Mike --- - Original Message - From: kk2ed To: Repeater-Builder@yahoogroups.com Sent: Monday, December 08, 2008 10:35 PM Subject: [Repeater-Builder] test equipment theft To all list members - Please keep a close eye out for the following items which were stolen from my work vehicle this past Wednesday evening 12/3/08 in central NJ: Motorola R2670A service monitor, SN496KWN0084 Bird 43 wattmeter in case with 5 900MHz range slugs Bird 43 wattmeter # 2 in case with 5 VHF UHF range slugs Dell laptop computer with Sprint wireless card, USB drives, etc, all inside a Targus leather laptop case Old (otherwise worthless) Epson 386 laptop loaded with RSS software, and a Motorola RIB with cables, all inside a Targus canvas laptop case DeWalt cordless drill Craftsman 3/8 power drill Craftsman 200pc socket set Misc bit and driver sets And a few other Sony DSC-S750 digital camera in Sony soft case Magellan Roadmate 1412 GPS receiver with bracket/cord Plus a few other items. A $500 reward is being offered for any information which leads to an arrest of the responsible perpetrator(s). There were a few witnesses to the crime, but they didn't think anything of it at the time. Amazing! What a hell of a way to start the Christmas holiday! Thanks for your attention. 73 Eric KE2D 609-713-3742
Re: [Repeater-Builder] Re: Good Repeaters for UHF Ham Band
Yall just didn't have the right documentation. The FR-4000 are not that hard. I have set up several with external community LTR trunking panels, and they work great. Mike - - Original Message - From: Derek To: Repeater-Builder@yahoogroups.com Sent: Monday, November 24, 2008 8:55 PM Subject: [Repeater-Builder] Re: Good Repeaters for UHF Ham Band I've had experience with both as when we installed our 444.825 repeater we used an ICOM FR-4000. It was set at 8w out to drive a PA at 90w. It had great receive sensitivity with a pre-amp at 449.825 MHz. the only other transmitters at this site are 800 900 MHz, so no pre-selector is used...yet. We replaced the FR-4000 with a Kenwood 850 only because after 3 people trying for an entire saturday afternoon, we couldn't get the FR-4000 to play with an SCOM 7K controller. We had to use a CAT-250. We wanted to use the SCOM due to some particular features, so the decision was made to replace the repeater with a Kenwood 850. I still have the FR-4000 repeater which was purchased new for about $1300. If anyone is interested in purchasing it, we might let it go since it has been sitting in its original box for the last 6-10 months. If interested, email me off list at derekjmu at yahoo dot com. The CAT-250 controller is also available. Both are good repeaters. I prefer the Kenwood for simplicity, but the ICOM is a solid machine and with 50w out may not require an external PA in some applications. Just don't plan to use a SCOM controller with it. KD4ADL ---
[Repeater-Builder] Re: Service manual
Hello everybody, Does anyone have a spare hard copy of a service manual for a Standard RP-71 UHF repeater, that they would sell reasonable. It is different from the RP-70 repeaters. Please reply off list. Thanks in advance, Mike [EMAIL PROTECTED]
Re: [Repeater-Builder] Mastr II internal connector reliability?
Put some type of residual contact cleaner on it like no-ox or I use a spray called blue stuff (not blue shower) on pots and contacts with excellant results. Mike - Original Message - From: Gran Clark To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 30, 2008 9:22 AM Subject: [Repeater-Builder] Mastr II internal connector reliability? Hi All In the past couple of years I have had to make four long trips (360 round trip mi each) to reseat connector problems in the GE Mastr II and MVP radios. The environment is ideal with air conditioning in the low desert South West. The fault has always been on a contact carrying less than a mA (dry). Other than wiring around the open connection or just re-seating the connectors a half dozen times does anyone have a better suggestion? If the pins are silver plated would moth balls be in order? Remember the moth balls in the Centralab switch boxes to prevent oxidation? Gran K6RIF
Re: [Repeater-Builder] Mastr II internal connector reliability?
That blue stuff that I use has what I call from the TV commercials for Dow bathroom cleaner, scrubbing bubbles. It leaves a residue behind that keeps cleaning the contacts, and I think as well kind of seals them from the air. I use it on volume pots also. I have used it on contacts in GE stuff as well as the rows of contacts for the boards in micors. I used to work on railroad micor radios and the vibration and dirt were a pain. Started using this on the contacts, reduced my headaches a bunch. I always used it on the regency/wilson mic ptt swithes when they got intermittant. After i used it, never had any more problems. Blue Stuff is made by Tech Spray Inc. in Amarillo, TX. www.techspray.com part# = 2411-12s Haven't bought any in a while, hope they haven't discontinued it. I figure they will since tv's haven't had tuners to clean in a few years. Mike -- - Original Message - From: Gran Clark To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 30, 2008 6:54 PM Subject: Re: [Repeater-Builder] Mastr II internal connector reliability? Thanks Mike and Ken I must still have some reservation about cleaners because of the temporary job they did on TV tuners. I guess it is about time to throw out my tube of General Cement TUNERLUBE. I will check out your suggestions. Thanks for the help. Gran K6RIF At 08:43 AM 10/30/2008, you wrote: At 08:22 AM 10/30/2008, Gran Clark wrote: If the pins are silver plated would moth balls be in order? Remember the moth balls in the Centralab switch boxes to prevent oxidation? ---I agree with Mike about the contact cleaner - I used to have some issues with one of my MastrII repeater connectors too until I cleaned 'em. Haven't had a problem in many years since. And on a side note - the contacts aren't silver plated, they're nickle plated. If they were silver then oxidation wouldn't be a problem as silver oxide is an excellent conductor of electricity! (why do you think they silver plate high current RF circuits?) Ken -- President and CTO - Arcom Communications Makers of repeater controllers and accessories. http://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net We don't just make 'em. We use 'em!
Re: [Repeater-Builder] Shutting Down Battery Back up
Another problem to consider is that with the repeater keyed, when the voltage gets to the dropout point, it will drop. After the load is removed, the voltage will go back up and the relay will re-engage. There will be a point that the relay will just chatter going in and out and sending spikes to the repeater. Mike KB5FLX - Original Message - From: Bob Donnell To: Repeater-Builder@yahoogroups.com Sent: Monday, October 20, 2008 2:14 PM Subject: RE: [Repeater-Builder] Shutting Down Battery Back up The switching boost regulator is a good idea for maintaining the operating supply for the repeater, but unless that regulator also has low-voltage shutdown provisions, to protect the battery from damage due to being drawn down too deeply, then a seperate cutoff is needed. Depending on the holding voltage of the relay to do this is not a good idea - a relay that will pull in at 12 VDC might not drop out until the supplied voltage is less than 8 volts - and this is well below the 10V or so level that you ought to consider the never cross this boundry level for the discharge level of the battery. Further, the relay coil will continue to draw the battery down, as long as it's connected. The simplest way I've seen for implementing a more positive means of assuring disconnection is to use a transistor, a zener diode, and a bias current limiting resistor. The circuit is designed such that the bias to turn on the transistor comes through the series connection of the resistor and zener diode from the opposite polarity from that which the switching transistor emitter is connected. The zener diode is selected for its knee voltage to be 0.7 VDC less than the desired cutoff voltage. When the voltage across the zener falls below its knee voltage minus the base/emitter drop of the switching transistor, the transistor will stop conducting, opening the current path through the relay coil. Actually, it'll probably happen a little above this voltage, as the transistor base is robbed of enough current to keep the transistor conducting enough to keep the relay pulled in. Use a transistor that has enough power dissipation that when it's not saturated, i.e. as the battery is getting low, the transistor won't be cooked by acting as a voltage divider between the battery and the relay coil. The transistor can be either PNP or NPN. If you use NPN, the emitter will be connected to the (-) rail, the resistor-zener pair, and one end of the relay coil to the (+) rail. The other end of the relay coil will be connected to the transtors's collector. Reverse this if you're using a PNP transistor. A power MOSFET could be used for this, but the transistion voltage for gate conduction is usually less well nailed down. Hope that helps, and 73 Bob, KD7NM -- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of David Struebel Sent: Monday, October 20, 2008 11:37 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Shutting Down Battery Back up You might also want to consider the approach shown in the article on p 76 in the November 2008 issue of QST where a boost regulator has been placed in line...This will allow the equipment to still see 13.5 to 13.8 volts even where the battery has discharged below the 12 volt level. 73 Dave WB2FTX - Original Message - From: ka9qjg To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 19, 2008 10:29 PM Subject: [Repeater-Builder] Shutting Down Battery Back up I have a Astron 60 Amp Power supply with the battery back up option it works Great I have it Fused. However in the Testing I noticed that on Battery Back up I only loose about 10 Watts that is fine, But as the Battery drains down the Repeater gets Distorted and of Course this is normal too Because of the input Voltage getting Lower , Now the question and I have not seen this talked about I would assume all I would need is a Normally closed Relay and as the Voltage dropped below a Certain Level it would open and just break the connection to the Battery back up , Is this the way to do it Thanks Don KA9QJG No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.8.1/1734 - Release Date: 10/20/2008 7:25 AM
Re: [Repeater-Builder] Re: WTD - Moto TLN8381A Micor rx reed - 100.0
Mike Are you stil looking for the 100.0 hz reed? Contact me off list and I can fix you up. What par of 5 land are you in? Mike KB5FLX [EMAIL PROTECTED] - Original Message - From: Randy To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 09, 2008 11:57 PM Subject: [Repeater-Builder] Re: WTD - Moto TLN8381A Micor rx reed - 100.0 ---I have a TLN8381A...162.2 Hz . In Repeater-Builder@yahoogroups.com, J Roden [EMAIL PROTECTED] wrote: As the subject says, I'm in need of a 100.0 reed for a Micor receiver. I have a 103.5 or 156.7 to swap if that helps you any. This is the slightly larger reed than the transmit (and other equipment) uses. Please email direct. Thanks Mike/W5JR [EMAIL PROTECTED]
Re: [Repeater-Builder] Any 1 need any of these?
What variety pulsar or II's are you looking for v or u? Mike KB5FLX [EMAIL PROTECTED] - Original Message - From: DCFluX To: Repeater-Builder@yahoogroups.com Sent: Friday, October 10, 2008 12:08 AM Subject: Re: [Repeater-Builder] Any 1 need any of these? Any Pulsar or Pulsar II's? On Thu, Oct 9, 2008 at 10:03 PM, Randy [EMAIL PROTECTED] wrote: Moxy, Mocom-70, Motrac, PAC, Syntor, Maratrac, Maxar-80, Micor, Mitrek, Yahoo! Groups Links
Re: [Repeater-Builder] coax length
If you can find a manual for a bird wattmeter, they had a chart in the back of how long to make cables to go with the meter for different freqs. With this setup, you could insert it in a system and after tuning remove the meter setup and still have it balanced. Mike - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, September 23, 2008 4:45 AM Subject: [Repeater-Builder] coax length Dear RP, I am doing some testing and have the 145.410 repeater connected to a dummy load. To get an accurate output indication in watts is it critical to have 1/2 wavelength cables? I have used an 18 cable from TX to wattmeter and then a 72 cable from wattmeter to load resistor. I have noticed a big difference in wattmeter indication between using the 72 cable and connecting the load right to the wattmeter. Also the same indication with a cable 144 long. I am making some cables 1/2 wavelength long for tuning use. Am I doing right? Thanks, Collin
Re: [Repeater-Builder] EF Johnson
Hi, While every one is discussing EFJ P-25 radios, can anybody tell me what a EFJ 242-5015-102-AAAB radio is? On the front says STEALTH 25. It too looks like it was made by BIG-M as the battery looks like a big HT-1000 battery. I'm thinking it is at least P-25 capable, any idea how to tell what firmware is in it? Does any body have software to program it, that would share? Thanks in advance, Mike - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, September 10, 2008 4:04 PM Subject: Re: [Repeater-Builder] EF Johnson I currently use EF Johnson 5100 Portables and 5300 Mobiles for Ham Radio . And they Work Grate . There Compatible with Motorola P25 Radios and Repeaters . The EFJ 5100 Portables and EFJ 5300 Mobiles where Made by Motorola For EF Johnson . The EF Johnson Repeaters are the same as the Motorola P25 Repeaters . They work Very Good . I prefer EF Johnson P25 Radios over the Motorola P25 Radios . Just my 2 Cents .Steven . In a message dated 9/10/2008 3:15:55 P.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: One comment: EFJ has some really strange ideas on P25 trunking and don't follow the P25 standard. Not sure if that would affect conventional P25 or not. Joe M. tgundo2003 wrote: Anyone on the list have comments/expierences on the New EF Johnson P25 capable repeaters? Good, no good? Tune to the ham bands ok? Reliability? Thanks!!! Tom W9SRV Yahoo! Groups Links -- Pt...Have you heard the news? There's a new fashion blog, plus the latest fall trends and hair styles at StyleList.com.
Re: [Repeater-Builder] newbie needs help
Hi RAY, I would suggest the ICOM CY repeater as this is the same setup I installed in the command trailer for Montgomery Co Search Rescue in TX. It is similar to the Mot unit but is made up of 2 mobile units so if you have a problem with 1, just that 1 could be swapped out. This unit does have a power supply for 110v if available and also a connection for 12v backup. The Mot 1225 unit has some problems with the PA if used in high use mode when it gets hot. Mike - Original Message - From: skydiver297 To: Repeater-Builder@yahoogroups.com Sent: Sunday, September 07, 2008 5:19 PM Subject: [Repeater-Builder] newbie needs help I have been tasked with researching what is needed for a non profit organization that is involved in Wilderness Search and Rescue within our County. Right now, we have a frequency of 155.1 but have not yet applied for a second freq. It will have to be in the Public Safety Range for VHF. We are looking to outfit a Mobile Command unit and need a 50 watt repeater that will work inside a mobile command without having to run a huge generator just to run the repeater. Ideally, we would get a Duplexer as we don't usually have room to place 2 antennas. We are kind of looking at the Motorola GR1225 repeater but would like to get opinions on this radio and any others that you can suggest. Is a 16 channel unit overkill for what we need? Thanks Ray
Re: [Repeater-Builder] Yet another request for Help on a 6M repeater
I have a pro station p/s available for free if you will pay shipping from TX. also have some spare low band strips if you want them too. Contact off list at [EMAIL PROTECTED] - Original Message - From: wa1nh To: Repeater-Builder@yahoogroups.com Sent: Friday, September 05, 2008 12:15 PM Subject: [Repeater-Builder] Yet another request for Help on a 6M repeater First post to the list. Please be kind. I am putting together a 6M repeater. A friend gave me a GE Master Pro mobile. I need an ep38 ac power supply to put this baby on the air at 100% duty cycle. Does anyone know a good resource for this power supply. I have been searching for 2 months with no luck. I have already built an 8 cavity filter duplexer using 1 5/8 hardline. (was easy, got plenty of scrap at work) Jason, WA1NH (you guessed it, in NH)
Re: [Repeater-Builder] Repeater Module
Hi Will, Please send me some info on your module. Thanks, Mike [EMAIL PROTECTED] -- - Original Message - From: sgreact47 To: Repeater-Builder@yahoogroups.com Sent: Saturday, September 06, 2008 7:51 PM Subject: [Repeater-Builder] Repeater Module We are looking for someone to build and distribute my Repeater interface Module, and cross band Module. The Repeater Module has a excellent track record in public safety and commercial LMR. Contact me directly, Will
Re: [Repeater-Builder] DB Antenna, Motorola Number
Cort, Some of the DB series uhf antennas had the flat straps that came from the dipoles and went around the mast and bolted together with the strap from the other side. The antenna should also have the moulded connections to the dipoles, this is the later version antennas. Mike - Original Message - From: Cort Buffington To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 19, 2008 7:58 PM Subject: [Repeater-Builder] DB Antenna, Motorola Number Folks, I have a strange beast. I have an antenna that appears to be of the DB-420 style (UHF 8 dual-bay folded dipole array). It has a DB Products tag that while very worn reads model number TDE6400A-B. This looks like a Motorola number to me? There is one difference in construction. Rather than tubular standoffs holding the dipoles, the standoffs are flat metal pieces. Anyone have a clue about this beast? -- Cort Buffington H: +1-785-838-3034 M: +1-785-865-7206
Re: [Repeater-Builder] Height Gain figure
Another reason to consider the terrain is that if you raise it up more, will you be overshooting some of the users close in under (in the cone) of the antenna (ie: needing downtilt). my $.02 worth, Mike KB5FLX - Original Message - From: Eric Lemmon To: Repeater-Builder@yahoogroups.com Sent: Saturday, August 09, 2008 12:17 PM Subject: RE: [Repeater-Builder] Height Gain figure Chuck, It's just not that simple. If the earth were completely flat, you would get some increase in range- but there are many other factors to consider besides transmission line loss. Most propagation calculation programs consider free-space loss, diffraction loss, and Fresnel loss separately. This is because one must consider the topography for the latter two factors, including the type of ground cover such as trees or shrubs, and if there are buildings in the way. That's one reason why the HAAT (Height Above Average Terrain) is more important than HAGL or HAMSL. Although high-end propagation programs like ComStudy can be a great help in evaluating candidate sites, nothing can replace a drive test with a Coyote or similar signal-survey instrument. Obviously, the higher your antenna is, the further away is the horizon and the greater is the line-of-sight distance. Here's a good reference on this topic: www.repeater-builder.com/ge/datafile-bulletin/df-10003-01.pdf 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kimball Sent: Saturday, August 09, 2008 9:58 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Height Gain figure At one point I had read a number for figuring out the gain you get by increasing the height. Of course at the moment I'm unable to locate that. ie: If I move the same antenna (VHF 2m) up a hill and gain 100' of elevation, but it costs me the line loss (300'), did I really gain anything. I'll figure in the line loss, and adjust the hardline to minimize the loss, but I'm looking for the number to compare how much gain (in db) did I get with the increased height. So... Anyone know what number is for gain as a function of height? or know a reference I can look up. Thanks Chuck n0nhj
Re: [Repeater-Builder] Re: power cables needed
Hi Mike, Thanks for the reply on the cables. Please contact off list and how much do you want for them, maybe a dozen or so? [EMAIL PROTECTED] 73, Mike aka KB5FLX
Re: [Repeater-Builder] Re: Dual battery system
Thanks eric for the reply, I'll try that. mike - Original Message - From: Eric Lemmon To: Repeater-Builder@yahoogroups.com Sent: Saturday, August 02, 2008 7:55 PM Subject: RE: [Repeater-Builder] Re: Dual battery system Mike, I have standardized on one part, the 122NQ030R made by International Rectifier / Vishay. The datasheet is here: www.vishay.com/docs/93210/93210122.pdf This Schottky diode has an extremely low forward voltage drop, and it can handle 120 amperes. I generally use the R suffix version, where the mounting foot is the anode and the 1/4-20 screw is the cathode. I mount the diode on a short piece of copper bar, which is then bolted to the positive terminal of the power supply. This allows me to float the battery on an Astron power supply, but prevents backfeed if the AC power fails. Digi-Key sells this item for about $24 apiece. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Dietrich Sent: Saturday, August 02, 2008 3:18 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Dual battery system any idea of a part number for this type schotky diode for this purpose? mike
Re: [Repeater-Builder] Re: Dual battery system
any idea of a part number for this type schotky diode for this purpose? mike
Re: [Repeater-Builder] Re: UHF MICOR Unified Chassis
Now you are learning how to properly work on motorola equipmenttrial error By fixing it the way you are, problem by problem, you will know the repeater in and out so it will be easier to work on in the future. Sounds like you are almost there if you only have an audio problem left. Hope you get it all working. Mike - Original Message - From: n9wys To: Repeater-Builder@yahoogroups.com Sent: Saturday, August 02, 2008 5:15 PM Subject: RE: [Repeater-Builder] Re: UHF MICOR Unified Chassis Well, changing out the backplane got the repeater working... along with double-checking the jumper settings one the cards. I did find a couple of jumpers that needed to come out on the Station Control card, and I'm sure that helped. The machine still does not pass audio, so now that it is working in the way it is supposed to be configured, next thing to do is chase down the audio path. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Joe Burkleo Mark, I think you have a good idea about starting fresh with an unaltered board. That would be my next move. It could not hurt to grab another set of cards also. These are old enough that I have found some bad caps and a bad transistor or two when going through my extra cards. What I will usually do is get a station working and then substitute boards and find out if they are good or bad. I have a box that the bad boards go into and then I fix them as time allows. You maybe fighting two or three different problems. You might also try a different audio/squelch board or two. I have had these cause goofy problems with cor/PL signals and repeat audio. This may not be your problem, but just gives you another place to look for missing signals. Joe - WA7JAW
[Repeater-Builder] Re: power cables needed
Hi, Does anybody have any extra A+ power cables for Motorola T83/T84 Spectra high power radios, for a couple of ham project radios i picked up? Cut-offs or complete. Don't need fuse holders or fuses. Thanks, Mike
Re: [Repeater-Builder] Duplexer cables
What is the best way(hookup) to test cables like these to see if they are resonant on a particular freq? With or without the coupling loops attached etc. for duplexers say Mike - Original Message - From: Nate Duehr To: Repeater-Builder@yahoogroups.com Sent: Thursday, July 24, 2008 3:56 PM Subject: Re: [Repeater-Builder] Duplexer cables Alexandre Souza wrote: For RG214 which has a velocity factor of 0.66 at 147 the cables would be about 13.25 inches. Now the type of connectors can influence this in that the connector type might lengthen the cable. N-connectors protude beyond the cable where PL259s do not. Now there is an intersting question from a kind of newbie: Connectors crimped/solded, where does you measure the total lenght of the set (cable + connectors)? On the base? Middle? where? The correct answer is whatever their electrical length is according to the manufacturer. The real-world answer is... trial-and-error mixed with knowing that a centimeter or so usually doesn't make much difference when you're talking VHF and probably not at UHF. Go higher in frequency, and you have to be more accurate. The only way to see the real-world results is by making a few cables and comparing them on the bench. Once you find connectors you like that are high-quality, and you've figured out how they behave... If I use this connector my test gear always says the cable is about X too long... then try to keep that style connector on-hand for such detail-oriented projects. Some connectors you can get away with inserting the coax but not crimping them down to get a rough feel for how the cable is acting. It's not perfect, but if you start long, you can often trim down to where you need to be before you crimp the (admittedly expensive) connector down onto the cable. Making custom length cables is a giant PITA. Take your time, experiment, get them just right by looking at them with real test gear, and then forget about them for years... (GRIN). Nate WY0X
Re: [Repeater-Builder] Duplexer cables
I asked that question for most of the people on the list that have not tuned a duplexer themselves or don't have the proper test equip to do it right and have done it with 2 radios or signal gen and a receiver. These work but it is so much easier with a tracking generator once you learn how to do it. That's the way I've always done it with the 6 or 10 db load/attenuators on the ports being used at the time and loads on the other. Some people tune duplexers w/out the loads on unused ports and that throws everything off in the tuning. I have never seen it done but there should be a way to see a particular cable's resonance on a tracking generator, but don't know how to do it as in shorted or open stubs. Does it take a network analyzer to do this? I have not tried what you suggest to tune the cans in the duplexer seperate and then put the cables in and see how much the tuning changes, but will try that and see how much it changes. Thanks, Mike - Original Message - From: Nate Duehr To: Repeater-Builder@yahoogroups.com Sent: Thursday, July 24, 2008 7:07 PM Subject: Re: [Repeater-Builder] Duplexer cables Mike Dietrich wrote: What is the best way(hookup) to test cables like these to see if they are resonant on a particular freq? With or without the coupling loops attached etc. for duplexers say The technique I've seen used and participated in is to test the entire section of the duplexer as a unit (with appropriate 50 ohm loads on the other side) using a tracking generator/spectrum analyzer, after getting the individual cans in tune. If connecting multiple cans and testing through them pulls the tuning of the cans (there are multiple humps in the image shown), the cable lengths are wrong. When the lengths are correct, two cans add to make a steeper/taller pass... for example. (It's easier to see this than to describe it in e-mail. Maybe someone will send some screen-shots of what it looks like someday... I've tried taking photos of my IFR 1500 with my cheap digital camera (4MP point-and-shoot Nikon) and it just doesn't look right. Someone with an HP service monitor would have a bigger screen and along with a good camera could probably capture what it looks like better. This technique is a wholistic approach to it, I suppose you could call it. You're shooting for the length that ends up looking the best after tuning the individual cans, and locking them down. As long as everything else has proper 50 ohm loads on everything that's not under test. Also always a good idea to use a 6dB 50 ohm pads between the signal generator and the device under test... of course. Normal practice... just in case. (Depending on the test gear and the device being tested, things can get really squirrelly if the test gear is expecting a 50 ohm load and doesn't have one...) It includes the loops this way, of course... because the end-result you're shooting for is that particular duplexer to work at your desired frequency. I hear this process is even nicer to do with a Vector Network Analyzer, but I've never even seen such a beast, let alone used one. Nate WY0X
Re: [Repeater-Builder] RCA TCXOs for sale
Hi Jams, I am interested if no one else wants. 73 tnx, Mike KB5FLX [EMAIL PROTECTED] - Original Message - From: n0qzv_jhorn To: Repeater-Builder@yahoogroups.com Sent: Monday, July 07, 2008 10:15 PM Subject: [Repeater-Builder] RCA TCXOs for sale I have a set of TCXOs for a RCA 500 series repeater. They are 442.4 TX and 447.4 RX and were reworked by ICM. Please contact me directly with an offer. thank you James
Re: [Repeater-Builder] Re: anyone know backdoor to csi tone panels
Thanks doug, The 23 method was what skip suggested of holding 23 then hit enter to the prog mode. That just allows you into the tone translation mode and you I didn't even think of trying that - Original Message - From: n3dab To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 24, 2008 12:23 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels RE your message to Sk8ipp - Its not 2x3 method it is a 3x2 method. the first 3 digits are 356 the last 2 are 00 to 99. and you have to triy all of them to find the code it is locked up o( ei: 35600, 35601, 35602, etc.) you also have to wait at least 5 seconds between tries. Once you find the right code then you can enter the program mode and repogram everything including the code. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mike Dietrich [EMAIL PROTECTED] wrote: Thanks for the reply skipp, I had already seen your site from a google search. The 23 trick only puts the panel in the tone translation mode and you can't change anything else - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich M.DIETRICH@ wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
Re: [Repeater-Builder] Re: anyone know backdoor to csi tone panels
Thanks Doug, The 23 is what skipp suggested by holding 23 then enter. This just allows you into the tone translation programming mode and you can't make any other changes in the params. I didn't even think about trying all of the last 2 digit combo's to find the right one, i'll try that. Tnx, MikeKB5FLX Specialized Communications - Original Message - From: n3dab To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 24, 2008 12:23 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels RE your message to Sk8ipp - Its not 2x3 method it is a 3x2 method. the first 3 digits are 356 the last 2 are 00 to 99. and you have to triy all of them to find the code it is locked up o( ei: 35600, 35601, 35602, etc.) you also have to wait at least 5 seconds between tries. Once you find the right code then you can enter the program mode and repogram everything including the code. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mike Dietrich [EMAIL PROTECTED] wrote: Thanks for the reply skipp, I had already seen your site from a google search. The 23 trick only puts the panel in the tone translation mode and you can't change anything else - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich M.DIETRICH@ wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
[Repeater-Builder] Re: anyone know backdoor to csi tone panels
Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
Re: [Repeater-Builder] Re: anyone know backdoor to csi tone panels
Thanks for the reply skipp, I had already seen your site from a google search. The 23 trick only puts the panel in the tone translation mode and you can't change anything else - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich [EMAIL PROTECTED] wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
Re: [Repeater-Builder] Re: anyone know backdoor to csi tone panels
Hi skipp, Thanks for the reply, I had already seen your webpage from a google search earlier. I tried the 23 trick that only puts the panel into the tone translation mode and you can't make any other changes from there. I've got a variety of models of their panels i have picked up over the years so i know a lot about them also. you can contact me off list for further info. Mike Specialized Communications [EMAIL PROTECTED] - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich [EMAIL PROTECTED] wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
Re: [Repeater-Builder] Re: Two Repeaters, One Antenna
Cort, contact me off list about this, i have som eideas you can use. [EMAIL PROTECTED] - Original Message - From: Cort Buffington To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 20, 2008 2:29 PM Subject: Re: [Repeater-Builder] Re: Two Repeaters, One Antenna If the duplexers for each system are only 50 ohms at each receiver and transmitter, then I should see 4 frequencies where there is a 50 ohm load, and they are all different. Why would I need more than some sort of phasing harness to connect the two duplexers to the single transmission line, assuming the BpBr duplexers have enough isolation to keep the two repeaters from bothering each other? On Feb 20, 2008, at 2:22 PM, DCFluX wrote: Isolators work with transmitters only. That would do nothing for getting signal from the antenna into the repeaters. What you need is a diplexer. That is a low pass / high pass filter network. These can be constructed with L/C high pass and low pass filters, but that usually only has enough Q to work with a super wide split, like VHF low pass and UHF high pass. It looks more like you need a pair of interdigital band pass filters. These can be tuned 5 MHz wide so the filter passes both TX and RX and depending on the number of poles will be the isolation, I'd say 5 poles should be around -60dB, 20 MHz out. They are kind of a pain to build as copper is expensive and aluminum is really hard to weld, that aluminum solder crap never worked for me. And then they are a real nutbuster to tune, don't even try it without a spectrum analyzer with a tracking generator. But before you spend any money, I would do a VSWR test with watt meter and a hand held to see if the antenna is broad band enough to support the 2 machines. -- Cort Buffington H: +1-785-838-3034 M: +1-785-865-7206
