[Repeater-Builder] Re: Repeating D-Star
I have often wondered just how diffucult it would to be to build a D-Star system around a Micor or M2. D-Star is mostly open protocol (except for the software which is propriatry to Icom), the AMBE vocoder chips are available from the manufacturer, and GMSK modem chips are also available. Seems like some smart experimenter (much smarter than me anyway),could build such a system and we would not be stuck with one vendor for D-Star systems. It would also have the bulletproof RF performance of the Micor or M2 radios. --- In Repeater-Builder@yahoogroups.com, DCFluX [EMAIL PROTECTED] wrote: What do you guys know about the AOR digital modems? I understand that is an open protocol. Seems a little expensive, but if it sounds good maybe we can build some kind of cheap encoder/decoder?
[Repeater-Builder] Re: GE Exec II Conv. Max audio 1.5 KHz Dev, how can I increase it
Radio Shack has the following op amps: TL082 Dual 276-1715 LM324 Quad 276-1711 LM741 Single 276-007 --- In Repeater-Builder@yahoogroups.com, N9WYS [EMAIL PROTECTED] wrote: Nate and all Mouser is the same way... www.mouser.com I have their door-stop catalog here in the shack. They do not have a minimum order, but basic shipping starts at about $8.95, so it doesn't make a lot of sense to order of you're only spending $10 or so... The shipping can eat you alive though if you're not careful. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Nate Duehr Sent: Wednesday, November 29, 2006 9:13 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] GE Exec II Conv. Max audio 1.5 KHz Dev, how can I increase it Kris Kirby wrote: Let's see.. there's a bunch of op-amps that come to mind... there's 'audiophile' amps out there, and there's just instrumentation stuff... the LM324 is pretty common, as well as the LM1458 and it's cousin the LF353 (JFET inputs). NE5532 is an audiophile part, but certainly works as well. The TI TL082 also comes to mind as a commonly used one by hobbyists. It's available in 8-pin DIP packaging amongst other things, which for some types of components is getting more difficult by the day -- soldering SOIC's just isn't as much fun as the old thru-hole parts. Datasheet: http://focus.ti.com/lit/ds/symlink/tl081a.pdf DigiKey carries just about all of the ones folks here have mentioned... Perhaps you don't know about Digikey -- if you don't, go to their website and do a catalog request if you plan on purchasing anything electronics-related. You'll enjoy the monster the size of a phone book that shows up at your doorstep. http://www.digikey.com/ Here's JUST the Texas Instruments op-amp page from their online version of the paper catalog... http://dkc3.digikey.com/PDF/T063/0586.pdf That's just page 586 of their catalog! I'd say you have a LOT of usable options! :-) Nate WY0X
[Repeater-Builder] Re: SS-64 on MASTR II
We have a bunch of SS-32's (the predecessor of the SS-64)and we key the CTCSS on ond off by simply switching the supply voltage into the board. This works well for eliminating the ID tones on links as well as EchoLink repeaters. We just let the xmit tone follow the rcv tone. Click on the link below for a diagram of the simple transistor switch we use. The pin numbers are for Motorola backplanes, but the idea should work for GE as well. http://webpages.charter.net/k4hal/Com-spec-sw.gif Henry, K4HAL --- In Repeater-Builder@yahoogroups.com, k6jsi [EMAIL PROTECTED] wrote: Hi There, If you are now using a TS-64 or TS-64DS for CTCSS Decode on your MASTR II repeater Receiver, you can simply use it to send the same CTCSS out your repeater transmitter. However, if not, then you wire up the SS-64 as follows: RED to +12 VDC BLK to Ground YEL to CG Hi ORG to active low from your CTCSS Decoder (if it is a TS-64 or TS- 64DS, that would be the WHT wire, if it configured for an Active Low which means you have the solder bridge across JP7 on the TS- 64. If it is not configured as Active Low then you need to build up a small inverter transistor to drive the SS-64 to an Active Low. You then need to de-solder JP-1 on the SS-64, which will allow the CTCSS tone to drop off when your Active Low from your CTCSS Decoder goes away. That will eliminate the courtesy tone, and the hang- time, on your IRLP Node. You can then program in whatever tone you want to use, and viola, you're working. I have used this setup many times, and it works well. Jeff (Shorty) Stouffer K6JSI Home: 760/ 724-4020 Cell: 760/ 716-7033 [EMAIL PROTECTED] winsystem.org flataudio.com --- Coy Hilton [EMAIL PROTECTED] wrote: From: Coy Hilton [EMAIL PROTECTED] Date: Thu, 23 Feb 2006 02:16:54 - To: [EMAIL PROTECTED] Subject: [GE Mastr II] Re: SS-64 GE Mastr II Warren, Always keep this in mind, the CAS source is through a 10K resistor. The maximum current that you can get from this lead is 0.9ma (9/1...I=E/R). This is not enough to operate anything more than the base of a small transistor or equivilent. The source is U603 if you smoke this thick film hybrid, it is not a pretty picture. --- In [EMAIL PROTECTED], Warren Paulson ve3fyn@ wrote: Does anyone have experience connecting an SS64 tone encoder to a Mastr II? I'm hooking one-up as a means of eliminating the courtesy beep from our repeater's echolink system. A separate internet connected radio picks-up the repeater signal. It will be programmed for a CTCSS frequency matching the repeater. I've connected the power line (red) to the CAS pin. I've connected the ground line to radio ground. I've connected the CTCSS output (yellow) to the CG HI pin. I'm getting nothing. CAS puts-out 9vdc upon receive, which should be plenty. I can measure neither voltage nor current on the yellow wire, though, which makes me wonder if the card is a dud. 73 de ve3fyn Warren Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Failure to communicate.....
Perhaps we need a special license class for the 'really advanced' amateurs. Click here: (author unknown) http://webpages.charter.net/k4hal/license.htm It's sad they believe that Techs are going to be the downfall of ham radio. They'll probably never realize that it's attitudes like their's that turn people away. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] WTB 162.2 reed for Micor
I am in need of a 162.2Hz (5B) reed like the KLN6209A for a Micor station I am converting. Will eithr buy outright or swap. Thanks Henry K4HAL (at) CHARTER (dot) NET Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: WTB 162.2 reed for Micor(the right reed this time)
Several people responded about this being the right reed for a Micor, so I looked in the book (DUH!) and what I really need is a TLN8381A. Appararently someone had just stuck this reed in the socket. I dont know if it would have worked or not. Henry --- In Repeater-Builder@yahoogroups.com, hwingate [EMAIL PROTECTED] wrote: I am in need of a 162.2Hz (5B) reed like the KLN6209A for a Micor station I am converting. Will eithr buy outright or swap. Thanks Henry K4HAL (at) CHARTER (dot) NET Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Multiple receivers one antenna ???
--- In Repeater-Builder@yahoogroups.com, Roger Grady [EMAIL PROTECTED] wrote: At 12:29 PM 12/19/2005, Coy Hilton wrote: It may sound interesting (and cheap) but the reason that no one else has suggested it is because the impedance miss matches it causes. That is why you need something like a multicoupler whis is first a pre amp to keep the loss to a minimum then sends the pre amp to a splitter that maintains the 50 ohm match required by the receivers on each output port. You can handle the impedance matching by using 1/4 wave sections of 75 ohm coax between the receiver input and the T. The 1/4 wave 75 ohm section steps the 50 ohm receiver input impedance up to 100 at the other end, two of those in parallel at the T gets you back to 50 to match the feedline. Any number of receivers other than 'powers of 2' is more complicated. This does nothing for the loss of course. Roger Grady K9OPO It's called a Wilkinson splitter. Here is a link to some of the theory. http://www.microwaves101.com/encyclopedia/Wilkinson_splitters.cfm Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Update--Chance of a Lifetime (kinda OT)???
A good point It might be money well spent to consult a lawyer and perhaps set up a LLC (limited liability corp) to own the property (while you own the LLC). This would limit your liability in case of a scenario such as Rich mentions. You might even have an attorney in your repeater group. --- In Repeater-Builder@yahoogroups.com, Rich Garcia [EMAIL PROTECTED] wrote: Steve.. he seems oh so eager. Be really sure of why he is so eager to sell with no apprasial. Have you attempted to contact other apprasiers for a lower quote ? One VERY important thing to look into is an Enviromental Study. With many of the ATS Microwave Tower Site sales (they had bought them from ATT Long Distance years ago)one of the problems was fuel tanks and batteries on site. Is there a burried tank somewhere on the property, hidden ?? leaking ?? Did a former tennant dump all of their lead acid wet cells there years ago, possibly burried by a previous owner and then bought by this poor guy who can't afford the clean up ? Make sure they don't have a haz-mat situation that is going to cost him tens of thousands to clean up and he is trying to rid himself of the cost! If you buy it lock stock and barrel that means you are buying a clean up also! I am in the cellular industry and you will not believe what we do for each and every site that we build on, not even buy just lease all the checks and tests are costly but once bitten twice shy. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: 4.5v off Micor back plane
5.1V zener in series with the 9.6V. (9.6 - 5.1 = 4.5) --- In Repeater-Builder@yahoogroups.com, Rick Charlotte [EMAIL PROTECTED] wrote: verry verry very little current .. just to drive a input on a chip never though about the diodes .. u good ideas .. I guess I could use the 5 volt reg it should not have to hard a time going from 9 to 5 volts .. Thanks for the idea .. Rick On 14 Apr 2005 at 17:43, Thomas Oliver wrote: How about a couple of resistors and make a voltage divider. Two equal value resistors will put you close. Don't know how much current you need so resistors might not work. Or you could use a 5 volt regulator and put a diode in series with the 5 volt output to drop it to 4.4 or u could just hook a bunch of diodes in series until you get close. tom n8ies [Original Message] From: Captainlance [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Date: 4/14/2005 4:38:21 PM Subject: Re: [Repeater-Builder] 4.5v off Micor back plane No, micors develop 9.6 and 12 volts only. - Original Message - From: Rick Charlotte [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com; [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Thursday, April 14, 2005 3:06 PM Subject: [Repeater-Builder] 4.5v off Micor back plane is there a spot that I could grab 4.5v off the micor back plane .. I need to drive a bias boad with 4.5v and wonder if there is a SAFE spot to grab this ? I know I could build a reg for ti but I would rather keep this simple Thanks for any and all help in this matter Rick Rick Szajkowski VA3 RZS Charlotte Darby VA3 CMR Node Owners of IRLP Node 2120 147.300 + VA3 OME 224.420 - VA3 OME Part of The Omeme Amateur Radio Club Peterborough Ont. Canada Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.9 - Release Date: 4/13/2005 Rick Szajkowski VA3 RZS Charlotte Darby VA3 CMR Node Owners of IRLP Node 2120 147.300 + VA3 OME 224.420 - VA3 OME Part of The Omeme Amateur Radio Club Peterborough Ont. Canada Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] TPN1151A Power Supply
I recently got an old Micor station with this power supply. Does anyone know the current rating of this supply? It appears to have the two M9698 pass transistors mounted on an external heat sink instead of the chassis mounted casting. Was this a Motorola mod or a mod from some tech who got tired of disassembling the station to change the transistors? It appears to be pretty well done which makes me think it might have been from the factory. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: RLS1000B, WX-200 and Cat 1000B Hookip
The CAT1000 has 8 outputs, pins 5,6,7 are outputs 1,2,3. Just connect to 3 other outputs ( ex. pins18,19,20) and change the output statements in your macros to reflect the change. Do not use the same pins or you will have interaction between the two devices. --- In Repeater-Builder@yahoogroups.com, w9mwq [EMAIL PROTECTED] wrote: I am in the process of hooking up the RLS1000 to my Cat1000B Controller, but I also have a WX-200 hooked up to the system. The instruction tells me to wire control lines 5,6, and 7 to J1 on the Cat1000, but that is where I have control lines for the WX-200. There is connections already made at 5 and 6, and 7 is open. Do I piggy back them together? Or what should be done here? HELP. Thanks Mathew Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] OT- Cushman CE5
The CRT display in my old CE5 has gotten so dim that I have to turn the lights off to use it. Does anyone know the CRT tube number used in it so I can start looking for one? (It is much easier asking than taking it apart and looking !!) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: What PA temp is too much?
Digikey also sells a complete line of them. Click here: http://dkc3.digikey.com/PDF/T051/1132.pdf --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: Henry Radio uses 125 degree thermo-switches on their commercial amps. If you check out their web page they sell the switches for $9.50 The switches are used to activate 12-V cooling fans on their amps. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Motorola microphone schematic
I dont know if this is what you are running into or not, but we ran into the same thing when attempting to use the Motorola Maxtrac/Radius series with an external controller. We use the ones without the 16 pin accy connector because they can be had very reasonably. All connections are thru the front panel mic connector. The Motorola amplified mic uses a bias resistor inside the radio and supplies around 10V thru about a 500 ohm resistor to the mic element. This is probably a holdover from the days when they used a carbon element. When converting a station such as the Micor, we would usually remove this resistor. The input impedance is now much higher and there is no pesky voltage on the line to reverse bias electrolytics etc. In the Radius, the resistor is a surface mount on the bottom of a board. In addition to being very diffucult to remove we would lose the microphone functionality. We opted to use a self powered FET circuit mounted either in the controller enclosure or in the connector shell of the cable. Click below for schematic. http://webpages.charter.net/k4hal/amp.jpg Click below for photo of the the amp mounted in a DB9 connector shell that plugs into a NHRC-2 controller. http://webpages.charter.net/k4hal/cable.jpg The amp has a modest amount of gain (around 4 or 5). We use it on all our link/remotes and APRS. Henry, K4HAL --- In Repeater-Builder@yahoogroups.com, Rob [EMAIL PROTECTED] wrote: Anyone know if the schematic for an amplified Motorola Mic is available on the net? Still trying to get this autopatch going and having some real level issues. My patch just doesn't have enough drive for the radio. TIA -Rob- Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Speaker Level Mixing
What about removing the 4 speaker from its enclosure and replacing it with two of the small oval speakers like the ones found like the ones found in the front of the Maxtracs ? --- In Repeater-Builder@yahoogroups.com, DCFluX [EMAIL PROTECTED] wrote: Anyone had experience with mixing the speaker output of 2 radios, Say Motorola GM300's to one speaker? Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: need a replacement for m9867 moto transistor for micor exciter
I have used a 2N4427 with good results. Henry --- In Repeater-Builder@yahoogroups.com, na6df [EMAIL PROTECTED] wrote: a buddy is looking for a suitable replacement for a Motorola part # M9867 driver transistor used in a VHF micor repeater exciter. Any ideas? There must be someone out there who knows what will work. Maybe an NTE replacement? (doesn't cross) Thanks for your help... na6df Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: info on freg. band
Click here for a nifty spectrum chart http://www.ntia.doc.gov/osmhome/allochrt.pdf Henry does any one know what uses the 1,300.000 freg band? have a customer that wants a scanner and thinks that is the place to go? any thoughts? thanks John Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: 2 UHF receivers, one antenna
You could build a Wilkinson 2 port splitter. Click here. http://bellsouthpwp.net/h/w/hwingate/wilkinson.gif Henry Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Coaxial Cable Specs.
Sounds like it might be rg-17, rg-218, of rg-219. rg-17 has about the same attenuation as 9913 at 450mhz. Not nearly as good as LDF5 ___ CABLE ATTENUATION (dB per 100 ft) 1.8 3.5 7.0 14.0 21.0 28.0 50.0 144 440 1296 LDF7-50A .03 .04 .06 .08 .10 .12 .16 .27 0.5 0.9 FHJ-7.03 .05 .07 .10 .12 .15 .20 .37 0.8 1.7 LDF5-50A .04 .06 .09 .14 .17 .19 .26 .45 0.8 1.5 FXA78-50J.06 .08 .13 .17 .23 .27 .39 .77 1.4 2.8 3/4 CATV.06 .08 .13 .17 .23 .26 .38 .62 1.7 3.0 LDF4-50A .09 .13 .17 .25 .31 .36 .48 .84 1.4 2.5 RG-17.10 .13 .18 .27 .34 .40 .50 1.3 2.5 5.0 SLA12-50J.11 .15 .20 .28 .35 .42 .56 1.0 1.9 3.0 FXA12-50J.12 .16 .22 .33 .40 .47 .65 1.2 2.1 4.0 FXA38-50J.16 .23 .31 .45 .53 .64 .85 1.5 2.7 4.9 9913 .16 .23 .31 .45 .53 .64 .92 1.6 2.7 5.0 RG-213 .25 .37 .55 .75 1.01.2 1.62.8 5.1 10.0 RG-8X.49 .68 1.0 1.4 1.71.9 2.54.5 8.4 __ - --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: I've been unable to find the specs. or any info. on some old but very good Coax I'd like to put to work. It shows F.T. R. CO. K-14, it measures 7/8 OD w/copper braided shielding solid center conductor. Would appreciate any help. George Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: DB224 Element Impedance Info Needed
Someone posted this link not long ago about this subject. http://www.kc5dgc.net/db224.htm --- In Repeater-Builder@yahoogroups.com, w9mwq [EMAIL PROTECTED] wrote: Can anyone tell me the impedance of the elements on a DB224 Antenna. I need to rebuild a phasing harnass for an antenna that has been hit by lightning. Any help would be appreciated in this endeavor. Mathew Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Weather Radios
You could put an opto-isolator in SERIES with the LEDS, then use the isolated transistoe output to trigger your controller. Henry --- In Repeater-Builder@yahoogroups.com, mch [EMAIL PROTECTED] wrote: I have one with an output, but it seems when I checked into it, it was not suitable for the type of operation we want. I think it was some kind of data output. This applies to the Radio Shack model, at least. Besides, a contact closure won't distinguish between watches and warnings. the LEDs will. Joe M. Rich Garcia wrote: I see a lot of people talking about having to tap off at the LED. I have 2 R/S WX receivers here one is SAME and one is not and both have outputs, I have not messed with the output but I believe that it is a NO contact that closes upon alert and opens when the receiver goes back to mute. The only thing I don't like about it is that most of these radios will mute 4-5 minutes after the alert message, that is a bit long for my taste but you could use the output to fire another relay/timer that is set for lets say 2-3 minutes and that could command the repeater controller. Rich -Original Message- From: Al Wolfe [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 08, 2004 11:56 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Weather Radios Why reinvent the wheel? SAME receivers have been out for several years. I bought a new Midland for $25 at a hamfest about three years ago. It can be programmed for several SAME code counties, different alerts, etc. It works well at a broadcast station with 50,000 watts ERP on an FM as well as co-located ham repeaters on two and 440. Several megawatt (or so it seems!) pagers system are about a mile away. The voltage states on the LED indicators can be used for determining alerts, tests, etc. Should be useful to control an input to a repeater. FWIW, the EAS decoder/encoders used in broadcast facilities usually start at over a grand, more like $3000, for a decent one. Have no experience with the Rat Shack models, but it would seem that trying to build your own SAME decoder is a lot of work when other options exists, other than an academic exercise. And I can't think of a legitimate reason to retransmit SAME codes on amateur frequencies. I guess if you really need a bullet proof front end you could take the IF signal out of commercial receiver and insert it into a cheap SAME receiver's IF chain. Or you could take the discriminator audio from the commercial receiver into the cheap SAME receiver's detector. The stock whip antenna on the back of the little midland works just fine here, but then, the WX station is only six miles away. I think I'd try a yagi cut to 162 if the signal was weak. Al, K9SI Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Weather Radios
The 1050 hz tone is the original arert tone that was used before the SAME system was installed. It is still transmitted with a duration of 8-10 seconds,is not area specific and will give a warning for the whole coverage area of the station, sometimes as much as 5000 square miles. Generating a SAME tone is not for the faint of heart. It is digital and has such oddball parameters as 520.83 bps data rate, a digital 1 = 2083.3 hz , a digital 0 = 1562.5 hz. For more than you ever wanted to know about SAME go here: http://www.nws.noaa.gov/nwr/same.pdf Henry, K4HAL --- In Repeater-Builder@yahoogroups.com, Mathew Quaife [EMAIL PROTECTED] wrote: What about a singal generator, think that would send them? Mathew On all the units that I have, they either respond to the 1050 Hz tone, or SAME, but not both. The SAME units ONLY respond to SAME codes. The tone units only respond to tone. This won't help you, but there is a code to program the SAME receivers with so they will respond to ANY alert, but they still use the SAME data - they just ignore the FIPS (area) code. To guess your next question, I am not aware of any SMs that generate SAME coding. Joe M. Mathew Quaife wrote: Thanks Mike, if the same codes were not put into the weather radio, it should not require the same codes to be sent is what I am thinking. I sent a 1050 Hz tone from the service monitor, that did not open the receiver. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: MSR2000 VHF questions
Manual says 1.5W . --- In Repeater-Builder@yahoogroups.com, Gregg Lengling [EMAIL PROTECTED] wrote: Okay not real familiar with the VHF version of this repeater, just need to know one thing. What is the minimum out of the exciter to drive the 110 watt amp. I'm thinking I'm a little light on drive and thus the amp doesn't always excite. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Need Power Tr's for MSR
The TLD2600 series continuous duty amplifier is nearly identical to the Micor. You might be able to scrounge some from an old amp. The intermittant duty amp is different and even uses NPN power transistors! Henry, K4HAL --- In Repeater-Builder@yahoogroups.com, Gregg Lengling [EMAIL PROTECTED] wrote: Looking for a M1131 and a M1132 for the predriver/driver stages of a VHF MSR2000 110 watt continuous duty amp. Anyone have any laying around??? Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Mitrek etc FS
Our repeater group a bunch of stuff surplus to our needs. If you are near the Birmingham, Al area here is your chance. Contact HOP. K4TQR at the address below. Pickup only. No shipping. (this stuff is HEAVY) We have 9 Mitrek VHF mobiles, one set of controls and mic. We have one highband Micor with a set of controls and mic. We also have a couple of Motorola desktop paging controllers and three desktop remote controllers for several remotes. We also have a Micor 4 channel highband base station. We have some Mitrek channel elements. $100 for all and I would drive 50 miles to meet someone. ... Hop ... K4TQR UDT3 at Charter dot NET Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Celwave Super StationMaster Refinish?
We have successfully used the white marine epoxy used in repairing and refinishing boat hulls. If you are worried about the urban legand of the pigment being metallic, paint a plasiic container with it, let it harden, then put it in the microwave oven and nuke it. If it burns up dont use it. Henry Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
