RE: [Repeater-Builder] Help with GE TMX-1000
Thank's Jim for reply, About DTMF, I use many radios like TH-D7A and other... I'm sure, I do not over modulate, I transmit DTMF at ±3.0KHz and modulation with CG at ± 4.7KHz max. At this time I have an old Cushman CE-4 to check my system but in past a beautiful IFR COM-120B will give the same results. So, I will inform the group if I find other thing about that. Best 73' Eric VE2VXT -Message d'origine- De : Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] De la part de Jim B. Envoyé : 11 mai, 2006 09:19 À : Repeater-Builder@yahoogroups.com Objet : Re: [Repeater-Builder] Help with GE TMX-1000 Eric Vincent wrote: I use these radios for UHF link and I like to remote control my Echolink station via the net. I was made many tests to pass DTMF but I think the RX CG don?t like DTMF and cut all the time, on and off and on and off... Either the DTMF you're sending is bad-likely too hot and going into clipping-or the receiver isn't aligned properly. Or one end or the other is off freq. -- Jim Barbour WD8CHL Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.392 / Virus Database: 268.5.6/336 - Release Date: 2006-05-10 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.392 / Virus Database: 268.5.6/336 - Release Date: 2006-05-10 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Help with GE TMX-1000
Ok Tedd... I tried to put a gnd on CG Disable on J910 and work like a Phoenix! For manual and programming, I know what you think about that... If anybody have hints about programming TMX-1000, let me know. Thank you and best 73' Eric -Message d'origine- De : Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] De la part de Tedd Doda Envoyé : 11 mai, 2006 09:15 À : Repeater-Builder@yahoogroups.com Objet : RE: [Repeater-Builder] Help with GE TMX-1000 Eric: On Wed, 10 May 2006 20:14:15 -0400, Eric Vincent wrote: For the CG, it is the same as Phoenix? Can put carrier squelch via J910? As far as I know, yes, that should work, but I've never tried it. For programming, I have the GE Min.E2 4EX22A10 and work well with X2210 into Phoenix but into the TMX-1000, a 2816 drive all memory. Do you know how to programm it without the GE Suitcase? But alas, I do have a suitcase programmer :) I use these radios for UHF link and I like to remote control my Echolink station via the net. I was made many tests to pass DTMF but I think the RX CG don?t like DTMF and cut all the time, on and off and on and off... If it was a CG problem, you wouldn't think it would pass ANY audio. Why don't you just set up both radios to USE CG, instead of trying to defeat it? For the service manual,I realy interested to get one or duplicate will be ok. Are wou willing to send me you manual, I can duplicate for ?20.00$ Sorry Eric. It took me 4 or 5 years to find the complete manual and it's not leaving my side. Tedd Doda, VE3TJD Lazer Audio and Electronics Baden, Ontario, Canada Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.392 / Virus Database: 268.5.6/336 - Release Date: 2006-05-10 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.392 / Virus Database: 268.5.6/336 - Release Date: 2006-05-10 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] DB4072-A UHF Duplexer Insertion Loss ?
I have just purchased a set of DB4072-A UHF DB products cans. I need to know what the insertion loss is on these from the manufacturers specs. Can anyone help me? I need this for my repeater co-ordination paperwork.. Thanks ahead of time..Shane KI4M Get amazing travel prices for air and hotel in one click on Yahoo! FareChase YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Re: RC-1000 Controller question
You refer to lock and unlock, though the manual makes no reference to this terminology, which would be self explanatory. I then guess lock/unlock is Control Code enable and Control Code disable? Do I do the Control Code Enable, go do the Repeater Disable, and thus the repeater would be off? Then, Control Code Disable to finish? To get to the CW IDer, Control Code Enable, do the CW work, then Control Code Disable? On the right track? Couldn't this be a little simpler? Thanks, and let me know if I am close to understanding.. Nate --- In Repeater-Builder@yahoogroups.com, Jim Brown [EMAIL PROTECTED] wrote: Access to the AXX and DXX control codes can be enabled or disabled with two control codes; Control Code enable and Control Code disable. When disabled the only control code to function is the Control Code Enable. These codes do NOT affect access to the * and # user codes. The above is from the RC-1000 manual. This means that you have to enter the two unlock codes in the proper sequence to do any of the 'A' or 'D' functions. Repeater enable 4100 A_ _ Repeater disable 4101 A_ _ To enable the repeater, issue the A__ code (whatever has been programmed in with the 4100 command). Remember to unlock the controller before entering the code. To disable the repeater, unlock the controller and then enter the A__ code that was programmed with the 4101 code. External ID en/dis 4140 D_ _ With the controller unlocked, enter the code that was programmed for the 4140 function (Dxx) to switch to external ID. We used this to allow EchoLink to ID a repeater and stop our ID from propigating down the EchoLink connected station. CW ID timer interval4076 _ _ @3C = 8 minutes Or you could set the CW ID timer interval to 00 to disable the CW ID. ie, with the controller unlocked, issue the command 407600. The 3C value would set the ID interval back to 8 minutes. Remember to lock the controller with the lock code when you are finished. The controller will respond with a low-high tone when a function is turned on, and with a high-low tone when it is turned off. I hope some of this helps - 73 - Jim [EMAIL PROTECTED] Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Comm Spec ts-32 tone unit
Greetings all, I was just wandering if anyone have a used comm spec ts- 32 tone unit floating around they would like to sell. Need to intergrate it into a r-100 repeater. Thanks Dirk Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] DB4072-A UHF Duplexer Insertion Loss ?
The spec sheet says 0.8 dB insertion loss for 5 MHz tx/rx separation. Paul Shane Autrey wrote: I have just purchased a set of DB4072-A UHF DB products cans. I need to know what the insertion loss is on these from the manufacturers specs. Can anyone help me? I need this for my repeater co-ordination paperwork.. Thanks ahead of time.. Shane KI4M 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] Wilson UHF Citi-com repeater
Looking for a manual on a Wilson UHF Citi-com WU-451-RA repeater. Will pay for copies, etc. if someone has one on the shelf. Thanks, Daron Wilson N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Help with GE TMX-1000
On Thu, 11 May 2006 20:25:17 -0400, Eric Vincent wrote: I tried to put a gnd on CG Disable on J910 and work like a Phoenix! Great! For manual and programming, I know what you think about that... Ya...sorry about that. You still may want to look around for a Phoenix-SX manual, as that will give you all of the information about signalling and the RF sections. If anybody have hints about programming TMX-1000, let me know. I normally don't do this (as it's very time consuming), but if you want a couple frequencies programmed, tell me the TX and RX frequencies, what CG tones you want, and whether you want STE (Squelch Tail Elimination) or CCT (Carrier Control Timer, or TOT). I'll program up a 2816 and read it with my Pocket Programmer II and send you the BIN file. All you will have to do is find any type of EPROM programmer and burn your own. PLEASE don't send me a list of 99 channels (the TMX1000 will hold 99 conventional channel). Limit it to 4 or 5. Tedd Doda, VE3TJD Lazer Audio and Electronics Baden, Ontario, 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/
Re: [Repeater-Builder] Re: RC-1000 Controller question
I guess I should not have introduced the 'lock' and 'unlock' terminology Nate, but you are on the right track. There are a lot of different controllers and some use the lock/unlock terms and it just stuck with me - HI. Yes - to protect some of the controls from casual changes by designated control ops, Ron put those commands behind the master programming control protection. So to do the commands you are interested in, you have to issue the two 'control code enable' codes to get to the point where you can change the setting you are after. Then use the control code disable code to finish. Actually, some controllers use a more complicated method of security than the RC-1000. For instance some of the NHRC controllers require you to enter the special programming code every time you enter any command. So the RC-1000 is not too complicated. And the NHRC controllers are not complicated either, once you get used to the programming method. The CAT controllers use a similar method to the RC-1000 but only one long sequence is used to enter the master programming mode. They place some of the commands behind a simpler control op code to allow multiple control ops to help but not have complete control of the repeater. Good luck on your controlling efforts. 73 - Jim You refer to lock and unlock, though the manual makes no reference to this terminology, which would be self explanatory. I then guess lock/unlock is Control Code enable and Control Code disable? Do I do the Control Code Enable, go do the Repeater Disable, and thus the repeater would be off? Then, Control Code Disable to finish? To get to the CW IDer, Control Code Enable, do the CW work, then Control Code Disable? On the right track? Couldn't this be a little simpler? Thanks, and let me know if I am close to understanding.. Nate Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Micor repeater amp question..
I am using a mitrek exciter at 1 watt to drive a Micor TLD1693D amp. I have tuned it up and it is working great in the 147.xxx range. I get approx 75 watts at 25 amps draw or so and 110 at 30 amps. I don't have a Micor base/repeater manual, so I am wondering what current the Motorola supplied power supply is good for? You're hitting it too hard. The VHF Micor PA is designed for about 400-700 mW input, give or take. One solution would be to put a 3dB pad in series. -- Jim Barbour WD8CHL Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Comm Spec ts-32 tone unit
Dirk wrote: Greetings all, I was just wandering if anyone have a used comm spec ts- 32 tone unit floating around they would like to sell. Need to intergrate it into a r-100 repeater. Thanks Dirk Can we assume that your repeater has the DPL board in it and not the PL board? -- Jim Barbour WD8CHL 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] icom ic40s
Hi guys .I have a icom ic40s and it has been tuned for 476 mhz and I would Like to retune it to work upto 487 mhz .any sugestions? Thank You, Ian Wells, Kerinvale Comaudio, www.kerinvalecomaudio.com.au YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Wilson UHF Citi-com repeater
Pretty sure it is the same as some of the Regency repeaters. Is this one abt 6 tall in an aluminum mesh enclosure, or is it made for rack mounting and abt 3 1/2 tall. If so I have scanned by manual for the 3 1/2 tall one, and will be glad to post. Steve NU5D On 5/12/06, Daron J. Wilson [EMAIL PROTECTED] wrote: Looking for a manual on a Wilson UHF Citi-com WU-451-RA repeater.Will payfor copies, etc. if someone has one on the shelf. Thanks,Daron Wilson N7HQRYahoo! 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/-- Ham Radio Spoken Here.NU5D YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Re: Wilson UHF Citi-com repeater
The manual is also available (already) on the www.radiowrench.com/sonic web page cheers, skipp Yes, the wilson repeater was made by regency... s. Steve Bosshard (NU5D) [EMAIL PROTECTED] wrote: Pretty sure it is the same as some of the Regency repeaters. Is this one abt 6 tall in an aluminum mesh enclosure, or is it made for rack mounting and abt 3 1/2 tall. If so I have scanned by manual for the 3 1/2 tall one, and will be glad to post. Steve NU5D On 5/12/06, Daron J. Wilson [EMAIL PROTECTED] wrote: Looking for a manual on a Wilson UHF Citi-com WU-451-RA repeater. Will pay for copies, etc. if someone has one on the shelf. Thanks, Daron Wilson N7HQR Yahoo! Groups Links -- Ham Radio Spoken Here.NU5D 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] Hamtronics 224MHz Repeater Kits
Re: Hamtronics 224MHz Repeater Kits -- Eric [EMAIL PROTECTED] wrote: I've had three of them. They've all been crap in high RF environments (mountain top). Also, they have issues like flakey squelches, difficult to align front ends, poor audio frequency response, etc. In fact, I'm a little surprised you've found them to be satisfactory. I know two other guys up here that have tried them over the years and hate 'em for many of the same reasons. Let me try this again... I typed out a big reply and hit a keyboard key only to see my first post go off to never-never land. I had all the same problems. My first all Hamtronics 224 MHz Repeater went right next to a 3kw fm broadcast transmitter in Vacaville. Of course any part of the orignal Hamtronics cor-1 or cor-2 circuit not properly rf bypassed went active and locked the tx on the first time I keyed it from the bottom of the Hill. So I had to learn how to bypass everything with disc caps and properly cover/seal any holes in the metal chassis. The receiver squelch is also mushy, part of the hamtronic rx circuit, which is based pretty much out of the Motorola Data Book for the MC-3357 or MC-3359 chip they used at the time. I know they're using a different receiver combo chip in the newer generation receivers, so you'd have to look up the data sheet to begin changing the squelch circuit around. Our good friends at Spectrum Actually have/had the best squelch circuit for the above name chips. I removed or changed the squelch hysterisis resistor(s) to make the operation more crisp (think I actually took that resistor out or changed it to a very different value. I also had put an additional helical resonator preamp on the front of the receiver to help protect the front end. At the time, Hamtronics was selling a preamp backed helical front end, which I liked quite a bit for the high IMD protection of the bipolar (if memory serves me right) device. Now they offer a GasFet version and I have no idea what the 3rd order values are for the GasFet Circuit. You could also order (if still available) the Toko Helical Filters direct from Digi-Key and roll your own if you want the more hardy bipolar device or an even better Phempt. At the time, Hamtronics also offered a non preamplifed helical front end. Though the helicals are relatively wide band width, the assembly in front of the receiver was more than enough to remove the blocking issue, provide dc grounding and keep the receiver front end under control. The duplexer you park in front of the repeater also makes a difference. I had decades of great operation using a 4 cavity Telewave BpBr Duplexer. With a homebrew 35 watt pa (actually the Hamtronics Repeater PA built from the kit). I traded it away about 4 years ago in a weak moment, wish I hadn't... it's out there some where, probably still working just fine if the new owner kept the golden screw driver out of the circuits. Oh well, it'll give us another thing to talk compare notes about in Dayton. Looking forward to seeing you there. eb Looking forward to seeing you and everyone else at Dayton, but first IWCE in Vegas for two days on Tuesday and Wednesday. chow for now skipp - Original Message - From: skipp [EMAIL PROTECTED] To: Eric [EMAIL PROTECTED] Sent: Thursday, May 11, 2006 1:44 PM Subject: Re: Hamtronics Repeater Kits Hi back, Funny you're having such trouble with your 224MHz Repeater. I've run a number of Hamtronics Kit Repeaters and equipment combinations through the years with nothing but great results. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Simple PIC Repeater Controller
I am in need of a simple controller, with which I can hook a repeater to a link system. With zero programming skills though this has mainly been a thought or a dream waiting to get done by someone :) 1 radio port and 1 link port; Both radio and link ports are fullduplex ports, and the linking between ports need to be three-phase, so that the radio port can be hooked to link both ways, or only to monitor link traffic or be disconnected from link. Controller needs to be steerable with DTMF from both radio and link ports, with a site prefixed commands through the link port only (to enable remote command from any of the sites) Basic repeater functions on the radio port, COR and/or PL access, tail talk timers, CWID with timers, multiple courtesy tones to telemetry link state and other functions. Commercial controllers do something like this, but at least the site prefixing is a feature which I haven't seen in the low-end controllers. I can do this on a Arcom RC-210 but that is bit too much to populate several sites. Any recommendations or programming ideas? .. Erik OH2LAK 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: Hamtronics VHF Engineering Receiver Kits
Additional stories ... Re: Hamtronics 224MHz Repeater Kits I had all the same problems. My first all Hamtronics 224 MHz Repeater went right next to a 3kw fm broadcast transmitter in Vacaville. Before that time I had been punching the clown trying to get any kind of performance from a VHF Engineering Receiver Kit. Now there's a dead horse you can beat twice... So I had to learn how to bypass everything with disc caps and properly cover/seal any holes in the metal chassis. In the case of the VHF Engineer Receivers, I had to do a heck'a lot of changes to their original receiver circuit. The receiver squelch is also mushy, part of the hamtronic rx circuit, which is based pretty much out of the Motorola Data Book for the MC-3357 or MC-3359 chip they used at the time. I know they're using a different receiver combo chip in the newer generation receivers, so you'd have to look up the data sheet to begin changing the squelch circuit around. Our good friends at Spectrum Actually have/had the best squelch circuit for the above name chips. The first Hamtronics receivers didn't even have the Motorola receiver chips in them circa mid late 1970's. You had to have a whip and a chair to keep the early VHF Engineer and Hamtronics Receivers under control... or just learn what really needed to be done and did the mods/updates. I removed or changed the squelch hysterisis resistor(s) to make the operation more crisp (think I actually took that resistor out or changed it to a very different value. The urge to tinker struck at an early age. I also had put an additional helical resonator preamp on the front of the receiver to help protect the front end. There was no such easy help for the real early kits. We had to make our own helical front ends using a modified GE Master Pro Receiver front end... cut off the chassis with a very large band saw. Also required a really huge soldering iron to rework the helicoils. The duplexer you park in front of the repeater also makes a big difference. And you learned those PC Board Duplexers didn't work very well most of the time. With a homebrew 35 watt pa Those early repeaters often used the Midland 13-509 as the transmitter (and many times as the receiver). Got a smokin' 10 watts output. Oh well, it'll give us another thing to talk compare notes about in Dayton. Probably see a lot of that early gear for sale at Dayton... What a deal... chow for now skipp and those brauts... s. 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: Comm Spec ts-32 tone unit
Yes, That is correct, I have a DPL model. Adding an external board is prprobably alot easier to intergrate than to track down a PL microprocessor. Dirk --- In Repeater-Builder@yahoogroups.com, Jim B. [EMAIL PROTECTED] wrote: Dirk wrote: Greetings all, I was just wandering if anyone have a used comm spec ts- 32 tone unit floating around they would like to sell. Need to intergrate it into a r-100 repeater. Thanks Dirk Can we assume that your repeater has the DPL board in it and not the PL board? -- Jim Barbour WD8CHL Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Hamtronics 224MHz Repeater Kits
skipp025 wrote: Re: Hamtronics 224MHz Repeater Kits [snipped huge re-engineering effort to make a Hamtronics 222 MHz repeater work properly...] Skipp, Basically it sounds like you had to re-engineer the thing to MASTR II or MICOR radio engineering specs. Simpler to convert one of the others, isn't it? ;-) What you had to do, sounds like an utter PITA... Nate WY0X Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Simple PIC Repeater Controller
Eric, take a look at the MCC RC-100 controller. It does what you want, and is a VERY mature design. I put the first one I own on the air in 1984 I think. 73 - Jim 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: Hamtronics 224MHz Repeater Kits
Nate Duehr [EMAIL PROTECTED] wrote: skipp025 wrote: Re: Hamtronics 224MHz Repeater Kits [snipped huge re-engineering effort to make a Hamtronics 222 MHz repeater work properly...] Skipp, Basically it sounds like you had to re-engineer the thing to MASTR II or MICOR radio engineering specs. Not the same animal really, while both are being used for similar tasks. Just like the first Master II or Micor Conversions... someone had to figure out what all the issues were and follow up with a working fix. In the 70's and 80's, I didn't have the money for a commercial radio, but I had lots of time. I learned a heck of a lot more trying to sort out the problems and figure up a fix. No one I know of is teaching two-way radio anymore... Like Heathkit was, you could better understand how things worked if you built them from the ground up. Simpler to convert one of the others, isn't it? Simpler wasn't cheaper... but I understand where you're thinking it is the more practial path. ;-) What you had to do, sounds like an utter PITA... Well... flash back to the 70's while disco was on the broadcast radio. In the previous 224 repeater exammple, I learned a lot about rf pick up in high rf areas, receiver protection and various fixes, a lot about the Motorola MC3357 and MC3359 FM Radio Chips, an in debth look at how squelch action works and can be modified in those circuits, how many police scanners and other common vhf radios have the 3357/3359 chips in circuit, how to build a proper rf tight chassis, how to build and align a serious rf pa from square one, how power supply impedance can cause music pickup playback through a repeater yadda, yadda things I would probably not have run into using a semi expensive (my budget at the time) surplus commercial radio. Motracs were around, but they didn't interest me much... Nate WY0X Nothing better than servicing your repeater while Funky Town and Boogie Shoes was playing on the shop fm broadcast radio. cheers Nate, skipp 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] Antenna Stirs Up Controversy
Well finally stike one up for the HAMS,Also read the comments You might like to add one too. http://tinyurl.com/p945f 73 De Don KA9QJG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Antenna Stirs Up Controversy
Notice that it is onlythe sewing circlecomplaining about it? That is a nice installation, SteppIR yagi on the crankupi've gotta get me one or two of those : ) . __Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Fw: [Repeater-Builder] Antenna Stirs Up Controversy
GREAT NEWS! I sure am glad I live inside a national forest in southern CA where there aren't any stupid local rules to contend with. 73, Dick W1NMZ/6 - Original Message - From: Don [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: 12 May, 2006 14:51 Subject: [Repeater-Builder] Antenna Stirs Up Controversy Well finally stike one up for the HAMS,Also read the comments You might like to add one too. http://tinyurl.com/p945f 73 De Don KA9QJG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Hamtronics 224MHz Repeater Kits
skipp025 wrote: Nothing better than servicing your repeater while Funky Town and Boogie Shoes was playing on the shop fm broadcast radio. cheers Nate, skipp Understood everything you said, Skipp. The story sounded like you did the work recently. You know 1970 was 36 years ago, right? ;-) ;-) ;-) Funkytown still rocks, though... Off to work... Friday night telco maintenance... Time to go break... er, fix... something. Nate WY0X Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Hamtronics 224MHz Repeater Kits
At 5/12/2006 09:16, you wrote: Re: Hamtronics 224MHz Repeater Kits The receiver squelch is also mushy, part of the hamtronic rx circuit, which is based pretty much out of the Motorola Data Book for the MC-3357 or MC-3359 chip they used at the time. I know they're using a different receiver combo chip in the newer generation receivers, so you'd have to look up the data sheet to begin changing the squelch circuit around. Our good friends at Spectrum Actually have/had the best squelch circuit for the above name chips. I'm familiar with that IC. IMO it has no squelch circuit per se, unless you call a dedicated audio amp mute switch a squelch circuit. At any rate, Hamtronics' noise filter implementation had poor transient response, which seems to account for why it would seem tight whenever any kind of impulse noise was present on the input (radar, ignition or power line noise). I also had put an additional helical resonator preamp on the front of the receiver to help protect the front end. I never had any overload problems with my 2 meter Hamtronics RX, but then again it never made it into any real comm site. If it were to need more protection, I'd add a low loss pass cavity instead of a preamplified helical resonator. The noise figure of a preamp'd helical assembly (hence your RX system) is equal to the loss of the helical resonator plus the preamp NF. At the time, Hamtronics was selling a preamp backed helical front end, which I liked quite a bit for the high IMD protection of the bipolar (if memory serves me right) device. Now they offer a GasFet version and I have no idea what the 3rd order values are for the GasFet Circuit. Every GaAsFET I've measured (maybe 3?) had a 1 dB GCP of +7 dBm You could also order (if still available) the Toko Helical Filters direct from Digi-Key and roll your own if you want the more hardy bipolar device or an even better Phempt. Filtering follows the 2 out of 3 rule: small, high selectivity, low loss - pick any 2. When I have the room, I prefer to use pass cavities instead of helical filters. That way I can have both high dynamic range low noise figure. Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Hamtronics 224MHz Repeater Kits
At 5/12/2006 18:00, you wrote: You know 1970 was 36 years ago, right? ;-) ;-) ;-) Funkytown still rocks, though... Guess I'm not as old as I thought: I prefer Pseudo Echo's version. Bob NO6B 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/
