Re: [Repeater-Builder] Motorola Purc 5000 As A Repeater?
At 07:08 PM 10/24/07, you wrote: Anyone with any experience turning a VHF PURC 5000 into a repeater? Randy The PURC5000 is a transmit-only version of an MSF5000 intended for paging service. There are no receiver components in the RF drawer, or if they are there, they are crossband. The two PURCs I've seen were 75mhz to 150mhz, and wireline-to-900mhz (a leased phone line feeding a modem, and the digital output fed the transmitter). A friend of mine is converting a 900mhz PURC (one with no receiver) into a 900mhz repeater and he chose to go the easy way and install a 900mhz Micor aux receiver (in it's own chassis) and duplexer. I suggest that you go to the repeater-builder Motorola page and look at the MSF page for some background info. Mike WA6ILQ
Re: [Repeater-Builder] Zetron 38 Panel
The Z38A instruction manual can be down loaded from http://www.repeater-builder.com/zetron/zetron-index.html The 38 is a different puppy from the 38A, however. More that one person has voiced the comment that Zetron is one of those companies that has absolutely no regard for their customers. It seems that they stock manuals only for those products currently in production. If you want a manual for a device that is a few years old you are out of luck - you can't even buy one. If anybody wants to donate PDFs for the Zetron page at repeater-builder just go ahead and mail them in. We've got gigabytes of storage that are just sitting there going to waste. At 08:22 PM 10/24/07, you wrote: I think the ID in DTMF you are talking about is the user ID which is transmitted at the end of a transmission as the bubble up. The DTMF sequence is the user number. If you want to have the Z38A transmit an ID every 15 minutes in Morse whether it has been active or not, put a user number in the system config with the ID you want. If you only want an ID when the system is active, put the ID in the user number with the tone you are using and put user 0 in the system ID slot. If you set the CTCSS on transmit to terminate when the user stops transmitting, the CTCSS will continue during the ID and then drop for the rest of the squelch tail. Let me know if you have any more questions. I have 5 of the Z38A operating in amateur repeaters. 73 - Jim W5ZIT Maire-Radios [EMAIL PROTECTED] wrote: what you are talking about the ID in DTMF and the time factor are all in programming. I don't have a book on the unit here but it all can be done. John - Original Message - From: mailto:[EMAIL PROTECTED]radiotech808 To: mailto:Repeater-Builder@yahoogroups.comRepeater-Builder@yahoogroups.com Sent: Wednesday, October 24, 2007 4:18 PM Subject: [Repeater-Builder] Zetron 38 Panel Hi All, I am trying to get the Zetron 38 running on our local 2 meter repeater (only as a temp measure) due to logic problems What I want Morse ident out every 15mins as to comply with the regs, the ident does go out but no radio tx any thoughts Station ID At the moment the station id is DTMF I want to chnage this to morse once again any thoughts or ideas Ps The 38 I have is fairly old hardware (ver 1.5) so what I am looking for might not work ? Regards Al __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] Motorola Purc 5000 As A Repeater?
What keypad??? The PURC 5000 does not have a keypad. The Nucleus does, however. It is the Quantar-based paging transmitter that came after the PURC5000. The real PURC 5000 came in two flavors. Is there a three digit display on the top right of the panel? If so, then it takes RSS. If there is no display then it takes a 2732 family PROM. The MSF page at repeater-builder has all the gory details. Mike WA6ILQ At 09:08 PM 10/24/07, you wrote: Can the station be programmed via the keypad or does it take RSS? Randy Jay Urish wrote: I was looking to go this route for a long time. If you can plug a local mic into the PURC, then you could use a maxtrac as RX and just put a controller in between. wb0vhb wrote: Anyone with any experience turning a VHF PURC 5000 into a repeater? Randy -- Jay Urish W5GM ARRL Life Member Denton County ARRL VEC N5ERS VP/Trustee Monitoring 444.850 PL-88.5 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.10/1091 - Release Date: 10/24/2007 2:31 PM Yahoo! Groups Links
Re: [Repeater-Builder] Motorola MSR2000 + NHRC-5
The last card-cage based repeater I did (a Micor, which uses a card cage like a MSR) I did a bit differently. The squelch gate card mod (the one with the DB connector and a 3-pole switch) basically turns it into a two-mode card - mode one is a paddle board that connects a outside controller, mode two is a squelch gate card. Rather than mod a squelch gate card I took a timeout timer card and stripped it. A second one provided some more pins for the connectors. On the front panel I added the DB connector for connecting an outboard controller. I added a piece of perfboard on standoffs for the LED drivers, etc. This way I can plug in an unmodified squelch gate card into its slot for use as a kerchunk box, or plug in the paddle board for all-the- bells and whistles controller. Good working squelch gate cards are too hard to come by to take a chance on messing one up. Mike WA6ILQ At 11:16 AM 10/24/07, you wrote: There are several articles on converting an MSR-2000 to amateur repeater service on the Repeater-Builder website, under the Motorola Mitrek/MSR-2000 pages, that include pinouts for connecting an external controller. Take a look at: http://www.repeater-builder.com/msr2k/msr2k-conversion-k4hal.html and http://www.repeater-builder.com/msr2k/msr2k-conversion-w0dod.html I think you'll find all you need there. George, KA3HSW / WQGJ413 -Original Message- From: atms169 [EMAIL PROTECTED] Sent: Oct 24, 2007 1:34 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola MSR2000 + NHRC-5 Hey guys. I have a question on schematics or a wiring diagram. I need to wire up an NHRC-5 Controller to an old RCMP VHF Motorola MSR-2000 (40 Watt version). I was going to wing it, thinking I could go through the squelch gate but, I would rather look for some information. Has anyone done this with this particular repeater? Any help appreciated. Yahoo! Groups Links
Re: [Repeater-Builder] Re: duplexer isolation and reciev
Even magnetic amplifiers and tunnel diodes.. [EMAIL PROTECTED] wrote: At 10/24/2007 19:26, you wrote: I would consider anything that uses a semi-condutor material to be active, Silicon and Germanium transistors included. According to Wikipedia, a passive device is a device that is not capable of power gain. If it is capable of power gain, it is an active device. If needed, I can probably dig up some definition in an IEEE reference that essentially says the same thing. Bob NO6B
Re: Re: RE: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation a
bob, I guess you cannot grasp the difference between operation of a diode and capacitor. A cap has it properties no matter what. A diode performs as a diode only when excited...the applied signal changes the diode...it does not change the capacitor. The internal structure in a diode changes and this is what makes it active. A capacitor does not. 73, ron, n9ee/r This is getting old when the discussion tends to go off in left field with no real basis. Now we are bringing in non-linear into this. From: [EMAIL PROTECTED] Date: 2007/10/24 Wed PM 10:13:57 CDT To: Repeater-Builder@yahoogroups.com Subject: Re: RE: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and re At 10/24/2007 10:55, you wrote: Gary, Might be correct about a light bulb. Some would say it is active, hi. However, its material is not changed, just heated up. The amp meter does not change its parameters, just reacts to a signal similar to an inductor. A diode's atoms change and react to applied signal unlike a resistor, inductor or capacitor. ...which makes it nonlinear, but not active. In a diode it must be excited by a signal to behave as a diode. Hmmm... Well, a capacitor must be excited by some signal to make it behave like a capacitor too. If you just put DC on it, it acts like an open circuit. Just setting around it will not have diode properties unlike a resistor that has it resistance no matter what. This is the difference. No difference. Because of its nonlinear characteristic it has more properties like Io, Rs, Vknee, etc. But it can be described just like a resistor is characterized by its resistance. A diode changes and activity affects the performance and conditions/state of a circuit. ...practically the definition of a nonlinear device. Like in a power supply it changes its operation from forward to reverse bias. A bipolar transistor is 2 diodes exhibiting the same changes as a diode junction. Just like to operate in a controlled range. 2 diodes wired back-to-back does NOT make a transistor!!! As all know a diode can be used to detect a RF signal and also generate RF mixing producing inter mod or other signal producing elements. ...which makes it nonlinear. But not an active device. Maybe we've beat this to death. I guess we just leave it to what each believe. Unfortunately your definition is virtually yours alone, while the vast majority of the engineering community accepts that of Jeff D. et al. Bob NO6B Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: Re: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and r
According to Wikipedia a transistor is not active. Here they state active devices as suppling power and passive as not. In control systems and circuit network theory, a passive component or circuit is one that consumes energy, but does not produce energy. Under this methodology, voltage and current sources are considered active, while transistors, resistors, tunnel diodes, glow tubes, capacitors, and other dissipative and energy-neutral components are considered passive. Then later they say: Here, devices like diodes would be considered active, and only very simple devices like capacitors, inductors, and resistors are considered passive. In some cases, the term linear element may be a more appropriate term than passive device. In other cases, solid state device may be a more appropriate term than active device. The search was under active component They do a good job in their explanations. They take different situations and uses of components and state as being active or passive. Every engineer I've worked with, and I've worked with a bunch from BS to PHDs, consider a diode as an active device. 73, ron, n9ee/r From: [EMAIL PROTECTED] Date: 2007/10/24 Wed PM 10:45:20 CDT To: Repeater-Builder@yahoogroups.com Subject: Re: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and reciev At 10/24/2007 19:26, you wrote: I would consider anything that uses a semi-condutor material to be active, Silicon and Germanium transistors included. According to Wikipedia, a passive device is a device that is not capable of power gain. If it is capable of power gain, it is an active device. If needed, I can probably dig up some definition in an IEEE reference that essentially says the same thing. Bob NO6B Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: Re: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and r
At 05:36 AM 10/25/2007, you wrote: According to Wikipedia a transistor is not active. Here they state active devices as suppling power and passive as not. For God's sake, guys,I don't think I have seen a more childish exchange on here ... nyah, nyah, nyah ... yes it is, no it isn't, yes it is, no it isn't ... give it a break ... You don't agree ... oh well ... go on ... Larry N5WLW
Re: RE: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and re
Jeff, Beta is most definitely a factor in the current gain of an emitter follower. This is most important with a linear regulator where the load is driven by the emitter. The beta determines the current gain of the pass transistor and how much current must be driving the base. If a transistor had 1 beta it would do no good for a reference voltage to have a pass transistor. beta = Ic/Ib the collector to base gain and relationship. The H parameters HFE (DC beta) and Hfe (AC beta). A transistor is not determined by its beta, but its operation and is still a transistor with a bets1. Maybe not a good one, but still is, hi. A capacitor's capacitance is not a function of any applied signal. That's like saying something is red only if one sees it. A diode is different. Its properties are determined by external signals. This is one reason engineers consider it active. It changes and activity affects a circuit by how voltages and currents are applied. A capacitor or inductor or resistor, passive devices, do not change how they react. 73, ron, n9ee/r From: Jeff DePolo [EMAIL PROTECTED] Date: 2007/10/24 Wed PM 09:15:59 CDT To: Repeater-Builder@yahoogroups.com Subject: RE: RE: RE: RE: RE: RE: RE: [Repeater-Builder] Re: duplexer isolation and reciev Beta is the current gain of a transistor, HFE and Hfe. Finally something we can agree on. But the way you used beta was referring to the net gain of a *circuit* using a transistor in emitter-follower configuration, which I don't think is the correct use for the term, and which is why I put beta in quotes in my reply. An emitter follower will have power gain only if the transistor has a beta, HFE or Hfe, greater than 1, but is active in any case. A transistor is capable of gain, thereby making it an active device. It's gain (or lack thereof) in a maldesigned circuit doesn't change the fact that the device, itself, is still capable of power gain. A dead transistor with an hFE of 1, in my opinion, makes it no longer a transistor. If we're going to consider broken or burned-out components in our discussions, we're never going to get anywhere... Yes diodes and transistor have junction capacitance, resistance, but get their properties from entirely different means than passive devices such as a resistor. Junction capacitance is a function of energy supplied to the device. A capacitor does not change its properties based on energy supplied, unless one exceeds its specs. A diode does. A transistor and diode change their properties based on the energy supplied. This makes both active. Under your definition, if there is a change in one of its properties of a device when energy is supplied to it, the device is active, do I understand that right? A diode's capacitance changes with applied voltage, OK, I concur. The voltage across a resistor changes with current through it. An inductor's reactance changes with frequency. The resistance in a length of copper wire changes with temperature. So I guess all of these are active devices? Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: [Repeater-Builder] Re: duplexer isolation and receiver noise bud
Can't an isolator do both, provide a constant 50 Ohm load to the transmitter, and offer 30 (single junction) to 60 (dual junction) of isolation from signals travelling from the antenna to the transmitter for mixing. If isolators were just to provide a constant load, why are there dual junction isolators ? Steve NU5D The primary reason for a isolator is to prevent intermod I strongly disagree... An isolators main purpose is to prevent a power amplifier from burning up due to excessive reflected power; due to antenna system issues. http://groups.yahoo.com/group/dstar_digital/
Re: [Repeater-Builder] Zetron 38 Panel
radiotech808 wrote: Hi All, I am trying to get the Zetron 38 running on our local 2 meter repeater (only as a temp measure) due to logic problems What I want Morse ident out every 15mins as to comply with the regs, the ident does go out but no radio tx any thoughts You do know that ham ID regs call for 10 minute ID intervals, not 15? Station ID At the moment the station id is DTMF I want to chnage this to morse once again any thoughts or ideas Never heard of a DTMF ID on a tone panelI think it's a unit ID/customer ID for the sake of billing or troubleshooting. -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Re: duplexer isolation and receiver noise bud
Single isolators are meant for transmitter protection from reflected power and antenna failure and low end transmitter combiners. Dual stage is more tailored for intermod reduction and wide bandwidth low distortion (TV) applications. Triple stage is more tailored for a close spaced high power single antenna transmitter combiner. Also take into consideration that the tuning caps in a circulator are a weak point, and can fail at the worst possible moment. I've had one circulator that has been rebuilt 10 times. Also the circulator changes tuning with tempreture. Not really a problem with intermitant use, but in commercial service the circulator is usually tuned 0.5 to 1 MHz low and drifts on to frequency during the first 15 minutes of use. On 10/25/07, Steve S. Bosshard (NU5D) [EMAIL PROTECTED] wrote: Can't an isolator do both, provide a constant 50 Ohm load to the transmitter, and offer 30 (single junction) to 60 (dual junction) of isolation from signals travelling from the antenna to the transmitter for mixing. If isolators were just to provide a constant load, why are there dual junction isolators ? Steve NU5D
Re: [Repeater-Builder] DB4062 woes...
Paul, I'm assuming silver plating at the very bottom is not too critical anyway. Did you use silver solder, or regular solder? I don't think that heat alone would hurt the silver plating. It may turn it colored, but should not hurt its conductive properties. (Similar to connectors that have tarnished) Even if it does get hurt a bit, it should not effect performance. It was my experience that you can heat the rod and bottom plate fairly quickly and not cause any adverse effects to the silver. What I did was clamp the rod in a bench vise and apply heat to the bottom of the plunger while gently twisting the plunger. (on the non-hot end of course HIHI) It came loose fairly quickly. Once removed, I used a rag to wipe away the extra molten solder form the rod and then used a properly sized drill to remove the extra solder from the inside of the hole. I just used regular 60/40 solder when I soldered them back together. I think I may have used a bit of extra flux on mine since I cut my rods off and was soldering to virgin invar. The grommets used in the ones I did were the plastic type, not the rubber ones. I think that the plastic would last longer. I think the rubber would deteriorate over a period of time. They were (I'm guessing) 1/4 I.D. and 5/16 O.D. Scott Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531 - Original Message - From: Paul N1BUG [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, October 24, 2007 5:41 PM Subject: Re: [Repeater-Builder] DB4062 woes... Scott, There is about .010 clearance. It's not enough to slip heat shrink tubing into. I can't help but wonder if it was originally soldered at the factory or not. It most definitely was NOT. There is absolutely no evidence of solder on the rod or plate. The manufacturer seems to have felt that neither solder nor insulation was necessary. Interestingly, a pass cavity from the same manufacturer and approximate time period is insulated (in that case the entire top plate of the plunger is insulating material, not metal). You can look at it this way: If you take another one apart and find it to not be soldered, it's just a problem waiting to happen. Then they ALL need 'fixed' That is the nagging feeling I've been having since I pulled this one apart and saw how it was built... these may have been a time bomb ticking for years... If you can't slide a piece of heatshrink between the rod and the plunger, Unsolder the other end, slide it out and enlarge the hole a bit. I'm leaning toward that. Then I could cleanly enlarge the hole and slip a bushing in there like you suggested earlier. It will mess up the silver plating at the bottom somewhat, but I'm not sure I could enlarge the hole by the small drill/file method with the tuning rod stuck right in the way. I'm assuming silver plating at the very bottom is not too critical anyway. Did you use silver solder, or regular solder? Paul N1BUG Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.10/1092 - Release Date: 10/25/2007 1:14 PM
Re: [Repeater-Builder] MASTRII Group
Vern, You couldn't approve messages only once a month. They expire after 14days. The problem with Yahoo groups is that they don't send e-mails saying that there are messages that are pending; so unless you go to the group's website and look, you have no idea that there are held messages. The only other option is to make it an unmoderated list. Hello Spam!! You think it's hard to get information through now, try wading through 100+ spam messages a day from the list. This is the way the list used to be setup, but the spam got overwhelming, so we decided to moderate new posters. Once they prove that they are not spammers, they are set to unmoderated status and can post freely. If you would like to take on the responsibility of checking the website daily, I can discuss it with Kevin the list owner and let you know. The messages are not held on purpose. The moderators do have day jobs. This is just a hobby. Scott Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531 - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, October 24, 2007 8:04 PM Subject: [Repeater-Builder] MASTRII Group Is the person who is the moderator for the MASTRII group on this list? I am just wondering why they have the messages on moderate for everyone then they only approve them about once a month. It really makes it hard to get help with problems or have an open discussion when it takes that long for posts to get through. I would have posted this question there but well I might not get an answer until after Christmas. Vern KI4ONW Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.10/1092 - Release Date: 10/25/2007 1:14 PM
[Repeater-Builder] Re: Motorola MSR2000 + NHRC-5
There are a number of methods... arguments to be made for doing one modification versus another. You might read the below web page before you begin along with a bit of research into some of my past msr-2000 related posts on this group. http://home.comcast.net/~msr2000/ ... and of course ask a lot of questions. cheers, s. atms169 [EMAIL PROTECTED] wrote: Hey guys. I have a question on schematics or a wiring diagram. I need to wire up an NHRC-5 Controller to an old RCMP VHF Motorola MSR-2000 (40 Watt version). I was going to wing it, thinking I could go through the squelch gate but, I would rather look for some information. Has anyone done this with this particular repeater? Any help appreciated.
[Repeater-Builder] Re: Motorola Purc 5000 As A Repeater?
The PURC5000 came in two versions - Early CxxJLB stations, similar to early MSFs, where the 2732 eprom is programmed via the R1801 for frequency, etc. Later CxxJXB stations, while similar to later MSFs, DID NOT need RSS. There is a 10 or 12 button keypad, and a red LED scrolling display (similar to the later NUC stations), which can be used to set a number of station parameters, such as frequency, key tones, etc. HOWEVER, in order to be able to change the frequencies, there is a DIP switch on the control board that needs to be turned on to allow the changes to take effect. Otherwise, the display will show the current frequencies programmed for CH1,CH2, etc, but itnot accept changes. Most of the PURC5000s came with a link receiver drawer just below the HSO. This is simply a tray with a Micor RF/IF board, a Micor style audio/squelch board (usually modified for flat audio by using a different resistor value in the preamp op-amp stage before the PL filter in/out), and usually a DPL board. Plus there is a verticle interconnect board to tie it all together, supply regulated 9.6v and 12v from a single 12v feed, and provide all signals out to a 10-pin header connector. This header connector then ties to the MSF5000 control board via a 10-conductor ribbon cable. I've taken these receiver trays out of old PURC5000s, swapped the 70MHz RF/IF board with a 450 mobile RF/IF board, swapped the DPL board for a PL board, and wired a 8-conductor shielded cable from the interconnect board out to a DB9 connector, and ran a fused DC power cable into it. Makes an excellent voting site receiver, or a great repeater receiver if using a repeater other than a Micor Compa- station. I think I still have a stack of them in my shop. I kept a few for ham project when the last of the PURC5000s were decommissioned. I can still remember years ago when my Motorola rep would make his monthly lunch visit. One day he excitedly called me to tell me he was bringing me a new protoype paging transmitter - 300 watts, and he could carry it in the trunk of his sedan with only one person needed to lift it in and out. Thinking of the 300w PURC5000s, which weren't in the shallow compa-station cabinets like MSFs, but rather in 6ft tall 24 square cabinets, requiring an army to move, we thought he was crazy, until we actually saw it in his trunk. Shortly thereafter, 60 PURC5000s went to the boneyard, and over 300 Nucleus stations soon followed. Some Motorola trivia - while the PURC5000 was a retrofitted MSF5000, the Quantar actually was derived from the Nucleus station, which came first. Speaking of Nucleus stations - anyone wanting to make a 900 Nucleus into a repeater - keep your eyes out for what was known as an ADVANCED CONTROL Nucleus - basically, instead of an NIU (Network Interface Unit which is fed via a satellite synchronous RS232 data stream link), the station came with an Advanced Control board, which allowed either a standard RF link receiver or wireline control. Early versions included a PURC500 style receiver tray bolted below the power amplifier (same receiver as the PURC5000s mentioned above), while later versions utilized the internal card receiver (like a Quantar). The link control card is matched to the Station Control Module (SCM), so when switching out the link control card, the SCM also needs to be replaced. Later version software also required the exciter to be replaced whenever the SCM is changed, as they are known as a matched pair which is factory aligned. The advantage of the Advanced Control version is that the exciter can be modulated in the analog domain - perfect for amateur use. Unfortunately, this version is extremely rare, and only a handful were sold. It was designed as a replacement for the later PURC5000. The main market was those who had RF or wireline linked PURC500O simulcast systems, and needed new units for coverage expansion during the period after the PURC5000 was discontinued. But by that time, most of the larger paging carriers went to satellite-based linking of their simulcast networks, and mass converted to NIU-based NUCs, thus the reason they are so rare. BTW, if any of you have any 900 NUCs sitting in your warehouses, I'll buy as many as I can find. Let me know... Eric KE2D --- In Repeater-Builder@yahoogroups.com, Mike Morris WA6ILQ [EMAIL PROTECTED] wrote: What keypad??? The PURC 5000 does not have a keypad. The Nucleus does, however. It is the Quantar-based paging transmitter that came after the PURC5000. The real PURC 5000 came in two flavors. Is there a three digit display on the top right of the panel? If so, then it takes RSS. If there is no display then it takes a 2732 family PROM. The MSF page at repeater-builder has all the gory details. Mike WA6ILQ At 09:08 PM 10/24/07, you wrote: Can the station be programmed via the keypad or does it take RSS? Randy Jay Urish wrote: I
[Repeater-Builder] Re: Motorola Purc 5000 As A Repeater?
Forgot to add this link with a picture. The controller is near the bottom of the rack. http://picasaweb.google.com/147195/MtVacaVHF/photo#4981359282084773906 Chris N6ICW --- In Repeater-Builder@yahoogroups.com, Mike Morris WA6ILQ [EMAIL PROTECTED] wrote: What keypad??? The PURC 5000 does not have a keypad. The Nucleus does, however. It is the Quantar-based paging transmitter that came after the PURC5000. The real PURC 5000 came in two flavors. Is there a three digit display on the top right of the panel? If so, then it takes RSS. If there is no display then it takes a 2732 family PROM. The MSF page at repeater-builder has all the gory details. Mike WA6ILQ At 09:08 PM 10/24/07, you wrote: Can the station be programmed via the keypad or does it take RSS? Randy Jay Urish wrote: I was looking to go this route for a long time. If you can plug a local mic into the PURC, then you could use a maxtrac as RX and just put a controller in between. wb0vhb wrote: Anyone with any experience turning a VHF PURC 5000 into a repeater? Randy -- Jay Urish W5GM ARRL Life Member Denton County ARRL VEC N5ERS VP/Trustee Monitoring 444.850 PL-88.5 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.10/1091 - Release Date: 10/24/2007 2:31 PM Yahoo! Groups Links
[Repeater-Builder] Re: Motorola Purc 5000 As A Repeater?
There is a third controller. Advance Controller used in the simulcast models. Completely programmable from the key pad. Has audio delay built in for the simulcast delays. Watt meter and the software can set deviation, audio eq. frequency's. I am simulcasting a 350 watt and 100 watt on 2 meters. http://www.n6icw.org/equip1.htm I use the rf shelf with a 902 Rx that come from the control hub of the system. The Advance Controller has a 4 character display. 16 button key pad for programing. PTT and Tx audio input using DB-25 socket on the side of the cabinet. Audio can be heard live direct off the controller at: http://72.245.148.218:8022/listen.pls Chris N6ICW
[Repeater-Builder] FCC's Riley Hollingsworth to Retire in January 2008
FCC's Riley Hollingsworth to Retire in January 2008 Riley Hollingsworth, Special Counsel in the FCC's Enforcement Bureau, announced his retirement this week, effective Friday, January 3, 2008. While his successor has not been named, Hollingsworth was quick to point out that the FCC's Amateur Radio enforcement program will continue. Hollingsworth told the ARRL: After about a year of thinking about the 'if not now, when?' question, I decided to retire January 3. I love working for the FCC and I've always had great jobs, but this one involving the Amateur Radio Service has been the most fun and I have enjoyed every day of it. For nine years I've worked with the best group of licensees on earth, enjoyed your support and tremendous FCC support and looked forward every day to coming to work. The Amateur Radio enforcement program will continue without missing a beat, and after retirement I look forward to being involved with Amateur Radio every way I can. I thank all of you for being so dedicated and conscientious, and for the encouragement you give us every day. Speaking at the New England Division Convention in August 2000, Hollingsworth offered his 10 personal suggestions to secure a sound future for Amateur Radio, encouraging amateurs to seize the moment to ensure a bright future for Amateur Radio. Look beyond enforcement, he urged, because if I do my job right, in five years you won't even remember my name. Hollingsworth said that while no one can predict the future, amateurs must invent theirs in an era of converging digital and RF technology. There is no reason why our Amateur Radio Service can't be the envy of the rest of the world, he said. Getting there, he suggested, comes with each amateur's taking responsibility for his or her behavior on the air. Amateurs should encourage arrogant, negative operators to take their anger and hate to the Internet, he said. Every minute they are on the Internet is a minute they aren't on Amateur Radio. ARRL Chief Operating Officer Harold Kramer, WJ1B, said, Riley Hollingsworth has been a tremendous supporter of and asset to the Amateur Radio Service. He will be remembered as being the force behind the re-introduction of Amateur Radio enforcement in 1998 and continuing those efforts through today. His contribution in cleaning up the amateur bands has been substantial and effective. While we are very sorry to see him go, and we wish him every continued success. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] MASTRII Group
Well it just seems like once a month I get about 20 messages in a row from that list. I would be happy to help if that would make it so that messages would get through quicker. I don't have the time to be a full admin on the list though. I run serveral other lists on my own list server and I have never had problems keeping up with them. Now granted my list server doesn't get all of the spam users that yahoo does so there isn't as much work. Vern On Thu, 25 Oct 2007 11:47:06 -0400 Scott Zimmerman [EMAIL PROTECTED] wrote: Vern, You couldn't approve messages only once a month. They expire after 14days. The problem with Yahoo groups is that they don't send e-mails saying that there are messages that are pending; so unless you go to the group's website and look, you have no idea that there are held messages. The only other option is to make it an unmoderated list. Hello Spam!! You think it's hard to get information through now, try wading through 100+ spam messages a day from the list. This is the way the list used to be setup, but the spam got overwhelming, so we decided to moderate new posters. Once they prove that they are not spammers, they are set to unmoderated status and can post freely. If you would like to take on the responsibility of checking the website daily, I can discuss it with Kevin the list owner and let you know. The messages are not held on purpose. The moderators do have day jobs. This is just a hobby. Scott Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531 - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, October 24, 2007 8:04 PM Subject: [Repeater-Builder] MASTRII Group Is the person who is the moderator for the MASTRII group on this list? I am just wondering why they have the messages on moderate for everyone then they only approve them about once a month. It really makes it hard to get help with problems or have an open discussion when it takes that long for posts to get through. I would have posted this question there but well I might not get an answer until after Christmas. Vern KI4ONW Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.10/1092 - Release Date: 10/25/2007 1:14 PM
[Repeater-Builder] Re: duplexer isolation and reciever noise budget
Hello Jeff, Never did the tests personally but I know from others work where I used to work that putting 2 RF signals through an isolator of significant power will produce measurable intermods and with the powers of a typical transmitter, definitely a problem. There were problems with just the connectors in a duplex system when the RX and TX paths shared a junction that wasn't perfectly linear (assuming proper duplex filtering as well). The Mill Spec change in the 90s caused grief when they spec'd nickel plating under the gold on the pins! IM levels from that PIM source were -80dBm levels! That is why one must never use Mil Spec connectors if you have IM concerns (unless something has changed recently - out of the loop) In the isolators/circulators, there are components that are magnetic such as the variable capacitors and the metal housings that will never get the device IM free even if the ferro material was perfect. ALSO, for the original poster, there is an IM combination of the 145.25 and 145.05 transmitter frequencies that will produce an IM product on 144.65. Using 2 antennas separated by 50 dB and using low IM components everywhere from the antennas, supporting structure, transmission lines, connectors and filter systems, may prevent the problem. Harold --- In Repeater-Builder@yahoogroups.com, Jeff DePolo [EMAIL PROTECTED] wrote: Again, the circulator will produce intermod when external strong signals enter the antenna port when used as a switch for the duplexer and there is transmitter power also going through it. 50 Watts or 47dBm to -116dBm receiver sensitivity is 163dBm dynamic range. The device is not linear enough to prevent detectable IM when strong signals are received that are of the correct frequencies to cause IM to a receiver. Which was why I was reluctant to go along with the idea of feeding a receiver off the third port, or even worse, passing multiple high-level signals through a common circulator. Have you ever quantified IMD in a run-of-the-mill VHF/UHF ferrite circulator before Harold? When I get some time, I plan on trying to do that. I figure I'll use a high-quality pass/reject duplexer with 100 dB of isolation as a two-transmitter combiner, and feed the output to a circulator with the remaining two ports terminated properly, and measure the third-order products at both terminated ports. I'll also be curious to see at what rate the IM products increase as you start to approach (or even exceed) the isolator's power-handling rating. --- Jeff
[Repeater-Builder] MSR-2000 split question
Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413
Re: [Repeater-Builder] MSR-2000 split question
The model number does not indicate splits. Joe M. George Henry wrote: Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413 Yahoo! Groups Links
Re: [Repeater-Builder] MSR-2000 split question
You need to pull the TX board and RX board and look at the model #'s MCH wrote: The model number does not indicate splits. Joe M. George Henry wrote: Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413 Yahoo! Groups Links -- Jay Urish W5GM ex. KB5VPS ARRL Life MemberDenton County ARRL VEC N5ERS VP/Trustee Monitoring 444.850 PL-88.5 146.92 PL-110.9
[Repeater-Builder] stolen repeaters
Be on the lookout for three stolen Motorola MTR2000 UHF repeater stations. Thieves removed the units from a locked building on Tassajera Peak on Sunday, October 14th, between 1530 and 1600 hours local time. They are all model T7566 stations, rated at 100 watts for the 430-470 MHz band. They were part of a trunked UHF system operated by Sterling Communications. The specific stations are as follows: MTR2000 T5766 Serial 474CAR0214, programmed for 464.6000 MHz TX and 469.6000 MHz RX MTR2000 T5766 Serial 474CAR0215, programmed for 463.2000 MHz TX and 468.2000 MHz RX MTR2000 T5766 Serial 474CAR0216, programmed for 463.6250 MHz TX and 468.6250 MHz RX All units are equipped with the optional preselector bolted to the rear of the station. The MTR2000 station is a 3U-high, rack-mounted unit that is exactly as pictured in the attached PDF image. The 100 watt station has muffin fans on each side, one for the power supply and one for the PA. If you learn of any stations matching the above description, contact Sterling Communications at 805-739-9259. 73, Eric Lemmon WB6FLY Forwarded by WA6DFU Pete Lawn [EMAIL PROTECTED] 805-547-1683
Re: [Repeater-Builder] MASTRII Group
Scott Zimmerman wrote: Vern, You couldn't approve messages only once a month. They expire after 14days. The problem with Yahoo groups is that they don't send e-mails saying that there are messages that are pending; so unless you go to the group's website and look, you have no idea that there are held messages. That's not true. I am a moderator on another list, and it innudates me daily with e-mail alerts that there are messages waiting to be moderated every time a member sends a message. I have a filter to find all subject lines that start with MODERATE and move them to a folder. Check your settings, Scott. Nate
[Repeater-Builder] Re: MSR-2000 split question
Re: MSR-2000 split question As a general/generic rule... most repeaters in the 450-470 band are 5MHz offset as are a lot/most of the 440-450 ham repeaters. Others outside the above ranges are often a 3MHz offset. There is no standard repeater offset in the VHF band. cheers, s. Jay Urish [EMAIL PROTECTED] wrote: You need to pull the TX board and RX board and look at the model #'s MCH wrote: The model number does not indicate splits. Joe M. George Henry wrote: Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413 Yahoo! Groups Links -- Jay Urish W5GMex. KB5VPS ARRL Life Member Denton County ARRL VEC N5ERS VP/Trustee Monitoring 444.850 PL-88.5 146.92 PL-110.9
Re: [Repeater-Builder] MSR-2000 split question
Nuts... it's on E-Bay, and close enough for me to pick up if I win, so I guess I'll have to ask the seller for more info. I think the ad said it was currently on 174, so I wanted to find out if it'll go down to GMRS without mods. 440 is probably out of the question, though, right? -Original Message- From: Jay Urish [EMAIL PROTECTED] Sent: Oct 25, 2007 1:14 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] MSR-2000 split question You need to pull the TX board and RX board and look at the model #'s MCH wrote: The model number does not indicate splits. Joe M. George Henry wrote: Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413
Re: [Repeater-Builder] MASTRII Group
Nate is right. I own/moderate over 100 lists, and I get pending email notifications from every one of them. It's a setting in the Moderator area. If you click on a moderator's settings (EDIT MEMBERSHIP), the options are: 0 Notify this moderator when there are pending messages, photos or memberships which require approval. 0 Notify this moderator when a member joins/leaves this group or new files uploaded. 0 Notify this moderator when there are pending messages which have been identified as possible spam. Check the first one. Joe M. Nate Duehr wrote: Scott Zimmerman wrote: Vern, You couldn't approve messages only once a month. They expire after 14days. The problem with Yahoo groups is that they don't send e-mails saying that there are messages that are pending; so unless you go to the group's website and look, you have no idea that there are held messages. That's not true. I am a moderator on another list, and it innudates me daily with e-mail alerts that there are messages waiting to be moderated every time a member sends a message. I have a filter to find all subject lines that start with MODERATE and move them to a folder. Check your settings, Scott. Nate
Re: [Repeater-Builder] MSR-2000 split question
It's definitely a UHF model, so it should not be on 174. Maybe 474. Joe M. George Henry wrote: Nuts... it's on E-Bay, and close enough for me to pick up if I win, so I guess I'll have to ask the seller for more info. I think the ad said it was currently on 174, so I wanted to find out if it'll go down to GMRS without mods. 440 is probably out of the question, though, right? -Original Message- From: Jay Urish [EMAIL PROTECTED] Sent: Oct 25, 2007 1:14 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] MSR-2000 split question You need to pull the TX board and RX board and look at the model #'s MCH wrote: The model number does not indicate splits. Joe M. George Henry wrote: Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413 Yahoo! Groups Links
Re: [Repeater-Builder] MSR-2000 split question
George Henry wrote: Nuts... it's on E-Bay, and close enough for me to pick up if I win, so I guess I'll have to ask the seller for more info. I think the ad said it was currently on 174, so I wanted to find out if it'll go down to GMRS without mods. 440 is probably out of the question, though, right? If he says it's on 174, it won't go to 440...but if it really is on 174, then it's not a C74, it's a C73. It would be a VHF high-band station. So it sounds like the seller doesn't have any idea what it is. -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Motorola Purc 5000 As A Repeater?
I have used a 225 watt Purc as a transmitter for many years. The 2732 can be read and modified using a R1800 programmer with MSF software and programmer. Just read and edit the freq, don't start from scratch. The audio and ptt are injected at the local mic RJ connector. I can do the 2732 for you if you would like. Glenn W8AK ** See what's new at http://www.aol.com
[Repeater-Builder] Re: MSR-2000 split question
It's actually a mid uhf msr repeater... currently on 474 MHz so it might go down to the gmrs band with a proper alignment. s. Jim [EMAIL PROTECTED] wrote: George Henry wrote: Nuts... it's on E-Bay, and close enough for me to pick up if I win, so I guess I'll have to ask the seller for more info. I think the ad said it was currently on 174, so I wanted to find out if it'll go down to GMRS without mods. 440 is probably out of the question, though, right? If he says it's on 174, it won't go to 440...but if it really is on 174, then it's not a C74, it's a C73. It would be a VHF high-band station. So it sounds like the seller doesn't have any idea what it is. -- Jim Barbour WD8CHL
Re: [Repeater-Builder] FCC's Riley Hollingsworth to Retire in January 2008
So, Out of the 3000 + members on Repeater-builder alone, would someone like to nominate his successor? Don, KD9PT - Original Message - From: Mark Thompson To: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Cc: Repeater-Builder@yahoogroups.com ; [EMAIL PROTECTED] Sent: Thursday, October 25, 2007 12:08 PM Subject: [Repeater-Builder] FCC's Riley Hollingsworth to Retire in January 2008 FCC's Riley Hollingsworth to Retire in January 2008 Riley Hollingsworth, Special Counsel in the FCC's Enforcement Bureau, announced his retirement this week, effective Friday, January 3, 2008. While his successor has not been named, Hollingsworth was quick to point out that the FCC's Amateur Radio enforcement program will continue. Hollingsworth told the ARRL: After about a year of thinking about the 'if not now, when?' question, I decided to retire January 3. I love working for the FCC and I've always had great jobs, but this one involving the Amateur Radio Service has been the most fun and I have enjoyed every day of it. For nine years I've worked with the best group of licensees on earth, enjoyed your support and tremendous FCC support and looked forward every day to coming to work. The Amateur Radio enforcement program will continue without missing a beat, and after retirement I look forward to being involved with Amateur Radio every way I can. I thank all of you for being so dedicated and conscientious, and for the encouragement you give us every day. Speaking at the New England Division Convention in August 2000, Hollingsworth offered his 10 personal suggestions to secure a sound future for Amateur Radio, encouraging amateurs to seize the moment to ensure a bright future for Amateur Radio. Look beyond enforcement, he urged, because if I do my job right, in five years you won't even remember my name. Hollingsworth said that while no one can predict the future, amateurs must invent theirs in an era of converging digital and RF technology. There is no reason why our Amateur Radio Service can't be the envy of the rest of the world, he said. Getting there, he suggested, comes with each amateur's taking responsibility for his or her behavior on the air. Amateurs should encourage arrogant, negative operators to take their anger and hate to the Internet, he said. Every minute they are on the Internet is a minute they aren't on Amateur Radio. ARRL Chief Operating Officer Harold Kramer, WJ1B, said, Riley Hollingsworth has been a tremendous supporter of and asset to the Amateur Radio Service. He will be remembered as being the force behind the re-introduction of Amateur Radio enforcement in 1998 and continuing those efforts through today. His contribution in cleaning up the amateur bands has been substantial and effective. While we are very sorry to see him go, and we wish him every continued success. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com !DSPAM:1016,4720cde1965791082811267!
[Repeater-Builder] Motorola 900 paging PA
I have one of these wonderful paging PA's (Model # SGTF1021B) that I am trying to convert for use on my 900 repeater, in lieu of the Glenayre - I've kinda given up on that PA for now. I'm pretty certain that I understand the instructions on how to get it operating in the ham portion of the band, but there is one thing about my PA that perplexes me - so I am reaching out to the collective knowledge for assistance. This particular unit has THREE - yes, 3 - coaxial connections in it. I'm certain one of them is the FINAL OUTPUT, and have made my selection as to which one that is. However, I cannot seem to figure out which one is the EXCITER/INPUT, or what the third one might be for. (Maybe a foldback monitoring line or something?) I am asking if anyone here has worked on one of these animals. It is slightly different in configuration as those shown at http://www.vhfsouth.com/tutorials/902.htm ... I have taken photos of the unit as I started working on it, and during my progress. If those photos might help, please contact me and I'll be more than happy to send them along for you to review. If I can get past this final hurdle, I will have my machine complete and ready to go on-the-air!! Please help me finish the project that has taken me WAY too long to complete. grin Thanks in advance! Mark - N9WYS
Re: [Repeater-Builder] Zetron 38 Panel
Hi Jim All, Firstly the tone panel is a Zetron 38 not an A or max ! Jim you are right about the DTMF ident really only for trouble shooting over air etc And sorry I forgot to say I am over here in the UK hence the 15min ident Speaking to tech at Zetron today he agrees that it looks like aa hardware issue as the hardware was made custom for Phillips back in 1985 (when I had hair) One thing that I think may be causing the ident not to trigger the radio TX could be one of the various jumper setting inside although no circuit diagram for that As before you can hear the ident every 15 (only on audio line to test set) it does not pull the radio into TX As everything else I have got going except this id with TX every 15 Min's Ps one post suggested using user tone 0 for the id Zetron will not accept this The Joys... Thanks for all the posts anyway guys Regards Al Jim [EMAIL PROTECTED] wrote: radiotech808 wrote: Hi All, I am trying to get the Zetron 38 running on our local 2 meter repeater (only as a temp measure) due to logic problems What I want Morse ident out every 15mins as to comply with the regs, the ident does go out but no radio tx any thoughts You do know that ham ID regs call for 10 minute ID intervals, not 15? Station ID At the moment the station id is DTMF I want to chnage this to morse once again any thoughts or ideas Never heard of a DTMF ID on a tone panelI think it's a unit ID/customer ID for the sake of billing or troubleshooting. -- Jim Barbour WD8CHL Yahoo! Groups Links
[Repeater-Builder] Rbi1 for sale
Hey guys, I have an rbi1 for sale. Any takers? I'm open for suggestions. I also have a cable for a kenwood TM331. Thanks, Jed
RE: [Repeater-Builder] Re: duplexer isolation and receiver noise bud
While it is basically true of how isolators are used, a low end combiner is not defined by how many isolator stages it employs. Most systems need around 65 db or so of isolation between transmitters. A common combination is a two stage isolator that gives around 60 db of isolation and a pass cavity following that. The pass cavity does dual purpose. It provides harmonic filtering for the isolators and also provides the switch between each leg in the combiner. Generally about 10 db is needed to provide the switch function. This gives enough isolation so that one leg does not load the other at the star junction or combine point. A single isolator could also be used followed by 2 or 3 pass cavities (or notch cavities) to provide the additional isolation required. If the spacing is far enough apart less cavities may be needed for the required isolation between transmitters. When TX-RX systems first started in business they did not manufacture isolators. Most of their combiner designs had only cavities and no isolators. If close spacing was needed they would buy isolators from another source. But there were many combiners sold with no isolators at all, however that required additional cavities to get the needed isolation. Not using any isolators in a combiner has the risk of a close in (frequency) from another transmitter getting thru the pass band of the combiner filters and into the transmitter to mix and generate intermod. However with pass band cavities any IM products would also be attenuated by the pass cavities. This is one reason that a pass/notch, or straight notch, duplexer is not a good choice for combining two transmitters. A typical pass/notch duplexer, while being able to provide good isolation between the two transmitters, provides little protection from other transmitters that may be on the same site or near by. A pass/notch duplexer doesn't have much pass band protection outside of the two frequencies that it is tuned to. The pass band is a pseudo pass band and not nearly that of a regular pass band type cavity. Usually the pass band protection in the band between the two frequencies is quite good but on either side of the pair the skirts are very broad and not very deep. An additional pass cavity or an isolator on each transmitter is a good thing to have even though the duplexer provides the needed isolation between transmitters. A triple stage isolator is generally employed where a known mix is going to result in interference problems. It provides additional attenuation of the offending signal keeping it out of the transmitter where IM could be generated. It is not a pre-requisite of close spaced transmitters in a combiner. 73 Gary K4FMX -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of DCFluX Sent: Thursday, October 25, 2007 10:40 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: duplexer isolation and receiver noise bud Single isolators are meant for transmitter protection from reflected power and antenna failure and low end transmitter combiners. Dual stage is more tailored for intermod reduction and wide bandwidth low distortion (TV) applications. Triple stage is more tailored for a close spaced high power single antenna transmitter combiner. Also take into consideration that the tuning caps in a circulator are a weak point, and can fail at the worst possible moment. I've had one circulator that has been rebuilt 10 times. Also the circulator changes tuning with tempreture. Not really a problem with intermitant use, but in commercial service the circulator is usually tuned 0.5 to 1 MHz low and drifts on to frequency during the first 15 minutes of use. On 10/25/07, Steve S. Bosshard (NU5D) [EMAIL PROTECTED] wrote: Can't an isolator do both, provide a constant 50 Ohm load to the transmitter, and offer 30 (single junction) to 60 (dual junction) of isolation from signals travelling from the antenna to the transmitter for mixing. If isolators were just to provide a constant load, why are there dual junction isolators ? Steve NU5D Yahoo! Groups Links
RE: [Repeater-Builder] MSR-2000 split question
George, This information is straight out of the MSR-2000 manual, 6881061E55. Your MSR-2000 is a fully-optionable repeater station that has 80 to 100 watts of output power somewhere in the range of 450-512 MHz. Whether it is 450-494 MHz or 494-512 MHz must be determined by inspection of three PA components. In other words, the model number does not reveal the split. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of George Henry Sent: Thursday, October 25, 2007 10:21 AM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] MSR-2000 split question Can anybody tell me which UHF split a C74GSB-3105BT MSR-2000 is on? Thanks. George, KA3HSW / WQGJ413
Re: [Repeater-Builder] MSR-2000 split question
Oops fat-fingered that one! It's 474 RX, 471 TX - Original Message - From: MCH [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 25, 2007 3:07 PM Subject: Re: [Repeater-Builder] MSR-2000 split question It's definitely a UHF model, so it should not be on 174. Maybe 474. Joe M. George Henry wrote: Nuts... it's on E-Bay, and close enough for me to pick up if I win, so I guess I'll have to ask the seller for more info. I think the ad said it was currently on 174, so I wanted to find out if it'll go down to GMRS without mods. 440 is probably out of the question, though, right?
[Repeater-Builder] Motorla MSR-2000 Jumpers?
I'm adding a controller to my Squelch Gate for my MSR-2000 repeater. I am almost there but, I can not find where these Jumpers are that need to be adjusted so my controller will work. Does anyone know where I can find them? Are they the jumpers on the Squelch Gate that need to be soldered? I'm a little confused. Thanks
