Re: [Repeater-Builder] Re: DB4032-8A Decibel Six Meter (low band) Duplexer
I wrote a little dos program years ago to design helical resonators. If anyone is interested. http://members.cox.net/wd0fyf/files/helix.zip The zip file contains a program for helical resonators and one for helical antennas. They use no disk access, have limited error checking, no help and were meant for publication, but are usable. Gerald Pelnar WD0FYF McPherson, Ks - Original Message - From: Mike Perryman K5JMP [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 26, 2006 4:42 PM Subject: RE: [Repeater-Builder] Re: DB4032-8A Decibel Six Meter (low band) Duplexer I can save you a bunch of time... go to this website http://www.members.cox.net/xsamo/01duplex.htm maybe it will save some duplication of effort.. 73 Mike K5JMP www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of DCFluX Sent: Thursday, October 26, 2006 4:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: DB4032-8A Decibel Six Meter (low band) Duplexer How big are the helicals? I am guessing that you have a 5 square chamber about 7 or so long with .25 hollow tubing coils in the center for about 7.5 turns. This would be approximently 375 ohms coil impedence. Also how are the coils coupled? Are they taped going into a connector? Of course another thing is the use of 1/4 wave cables between section which will give about 6dB of 'help' at the target frequency each, and the stubs should be good for 20dB each. On 10/26/06, skipp025 [EMAIL PROTECTED] wrote: After you move it into the basement work area, draw out a diagram like the one I'm giving out. Measure and record the cable lengths and we'll have the information to compare. My duplexers are on 39.5MHz from the factory so your 45MHz unit will be the perfect next step measurements moving up toward 50 MHz and higher. cheers, skipp Steve Peg [EMAIL PROTECTED] wrote: I have one of these duplexers, rescued from being disposed of as scrap, and some information about it would be helpful/useful. I do intend to use it for 6M, when I get around to it, hopefully this coming winter season. I have heard through a friend that for best performance on 6M a turn may need to be shorted in each can. I haven't tried it yet though. I suspect I have to shorten the stubs and cables between cans. I am going from 45 to 51 MHz. First thing that I have to do with it is move it out of the garage and into the basement work area. Steve KB3FPN Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder]Repeater Controller
[EMAIL PROTECTED] wrote: I've already breadboarded a time hack unit which marries a WWV receiver to a tone decoder. At the beginning of each hour, WWV broadcasts 800 ms of a 1500 Hz tone. I have a simple tone detector set to key the repeater when it I once tried to pick up the 10 MHz WWV signal from one of my sites. No way - far too much processor noise in the building. Not us, but another local group built a little setup that gathers up time from WWV (could be GPS nowadays) and via a vertical antenna and a modest radio at one of the tech's houses, they adjust their clocks on their controllers regularly via their control receiver frequency by simply poking a button on the device, or setting it in an automatic weekly mode. It's a microcontroller, a mobile radio, an antenna, a DTMF encoder chip (cleaner than an R2R ladder and sine-waves made from from logic pins), and a WWV receiver. Can CW ID with a DTMF tone at end of transmission, although knowing the designer he probably put a nice sine-wave CW ID in it. Fairly simple lashup. Needed someone familiar with slapping some code in a micro is about all, and that's easily done these days with both pay and free BASIC compilers for these little chips. It even had code in the micro to deal with daylight savings time, and they were joking that it's been so long since they did any changes to it, our changes to daylight savings time's start and stop dates next year will mean it needs work done on it. Nate WY0X
Re: [Repeater-Builder]Repeater Controller
At 11:22 PM 11/23/2006, you wrote: mailto:no6b%40rptrlist.w6jpl.ampr.org[EMAIL PROTECTED] wrote: I've already breadboarded a time hack unit which marries a WWV receiver to a tone decoder. At the beginning of each hour, WWV broadcasts 800 ms of a 1500 Hz tone. I have a simple tone detector set to key the repeater when it Of course, if you have an IRLP node as part of your system, it is ridiculously easy to keep the clock in your controller spot on, automatically. Ken -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net
[Repeater-Builder] FS: Link Communications Controller
HI..I have a brand new Link Communications RLC-1 Plus controller with rack mount plate and the Icom 900/901 band module interface module. We never got our project off the ground. So we have decided to sell it and if anyone has any interest let me know. We probally will go the ebay route..Thanks.. Kevin Graniero KF9AQ WPUA292 kgraniero@ charter.net
Re: [Repeater-Builder] t800 manuals
I am seeking a manual, print, or actual unit.. a TS0089 Speaker and channel switch assembly for a 800 series repeater/base station. Help! Lance, N2HBA - Original Message - From: vince To: Repeater-Builder@yahoogroups.com Sent: Thursday, November 23, 2006 12:38 PM Subject: [Repeater-Builder] t800 manuals hi here you are let me know if this are any good for you all i have more tate manuals just email me and if anyone as any thing of intrest to me let me now, by the way i allso have cleartone ch650 /cm7000/7000a4 and rare ex met manuals ok glad to be of help 73s
[Repeater-Builder]Repeater Controller (new)
I am helping the club bring an repeater back up on air, and I am working on the controller. I am trying to change the callsign in it, I have found what info I need, but my question to the group is- The controller uses a 27c64 EPROM, and all I have is 2764 types? Can I use the ones I have, or do I need to get the right one? I am new to the EPROM world, so I don't know much about them. It goes to show one is never too old to learn a new part of the hobby... 73 Mike - N7ZEF
Re: [Repeater-Builder]Repeater Controller (new)
hi mike yes you can use a2764 if u dont have a 27c64/or a 2764a/ with no probs i 2 use this in my tait so sould be ok for yours Mike Reed [EMAIL PROTECTED] wrote: I am helping the club bring an repeater back up on air, and I am working on the controller. I am trying to change the callsign in it, I have found what info I need, but my question to the group is- The controller uses a 27c64 EPROM, and all I have is 2764 types? Can I use the ones I have, or do I need to get the right one? I am new to the EPROM world, so I don't know much about them. It goes to show one is never too old to learn a new part of the hobby... 73 Mike - N7ZEF Send instant messages to your online friends http://uk.messenger.yahoo.com
Re: [Repeater-Builder]Repeater Controller (new)
At 09:21 AM 11/24/2006, you wrote: I am helping the club bring an repeater back up on air, and I am working on the controller. I am trying to change the callsign in it, I have found what info I need, but my question to the group is- The controller uses a 27c64 EPROM, and all I have is 2764 types? Can I use the ones I have, or do I need to get the right one? I am new to the EPROM world, so I don't know much about them. ---Yes Mike you can use the non-C type. (the C type is simply a low power cmos version). The one you have will draw a little more current but nothing to worry about I'm sure Ken -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net
RE: [Repeater-Builder] Receiver crystal filter
John, Front-end crystal filters are generally available only up to 200 MHz or thereabouts, so you may not find a supplier of such a filter for the 70cm band. Here is one of several sources of crystal filters: http://www.mtronpti.com/products/index.php?id=65 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of johnmichaelwelton Sent: Sunday, November 19, 2006 1:19 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Receiver crystal filter Any recommendations for a receiver crystal filter for 2M or 440 repeater application? Thanks, John/N4SJW
Re: [Repeater-Builder]Repeater Controller (new)
Either *should* work. You would have to consult the data sheets but as I recall the C version is CMOS, perhaps a little less current draw and faster operation. 73 de Jack - N7OO - Original Message - From: Mike Reed To: Repeater-Builder@yahoogroups.com Sent: Friday, November 24, 2006 10:21 AM Subject: [Repeater-Builder]Repeater Controller (new) I am helping the club bring an repeater back up on air, and I am working on the controller. I am trying to change the callsign in it, I have found what info I need, but my question to the group is- The controller uses a 27c64 EPROM, and all I have is 2764 types? Can I use the ones I have, or do I need to get the right one? I am new to the EPROM world, so I don't know much about them. It goes to show one is never too old to learn a new part of the hobby... 73 Mike - N7ZEF Messages in this topic (1) Reply (via web post) | Start a new topic Messages | Files | Photos | Links | Members Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe Recent Activity a.. 22New Members b.. 1New Links c.. 3New Files Visit Your Group New Message Search Find the message you want faster. Visit your group to try out the improved message search. Share feedback on the new changes to Groups . __,
[Repeater-Builder] feed through caps
Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes.
RE: [Repeater-Builder] feed through caps
Gary, EMI Filter Company offers many styles and ratings of feed-through filters. The last batch I bought from EMI was #B8P203B, which is rated 0.02uF and 100V, with an 8-32 shank. As I recall, they cost about a buck apiece when you get 25- a very good price. Go here: http://www.emifilterco.com/ 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Gary Sent: Friday, November 24, 2006 2:50 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] feed through caps Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes.
Re: [Repeater-Builder] feed through caps
Gary Surplus Sales of Nebraska as a decent selection of threaded feed thru caps of various values: http://www.surplussales.com/Feedthrus/FTholeMnt5.html Dan's Small Parts in Montana might have something for you as well: http://www.danssmallpartsandkits.net/ Good luck 73, John Maurer WØDP Ames, Iowa - Original Message - From: Gary To: Repeater-Builder@yahoogroups.com Sent: Friday, November 24, 2006 4:49 PM Subject: [Repeater-Builder] feed through caps Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.430 / Virus Database: 268.14.14/548 - Release Date: 11/23/2006 3:22 PM
Re: [Repeater-Builder] feed through caps
Skycraft Surplus in Winter Park Fla has them. 73 John VE3AMZ - Original Message - From: Gary [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, November 24, 2006 5:49 PM Subject: [Repeater-Builder] feed through caps Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes. Yahoo! Groups Links
[Repeater-Builder] Re: feed through caps
I have a small pile of used feedthroughs. They have the markings: AVX 1000 1KV M Threaded shaft with nut Would these work for your application? contact me at dangit5 (((at))) gmail )))dot((( com Dave / N9NLU --- In Repeater-Builder@yahoogroups.com, Gary [EMAIL PROTECTED] wrote: Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes.
Re: [Repeater-Builder] t800 manuals
I am trying to either buy, or build one of the channel change assemblies. My unit has an internal prom, but I need to be able to change channel from the front panel. lance - Original Message - From: vincent barnett To: Repeater-Builder@yahoogroups.com Sent: Friday, November 24, 2006 12:46 PM Subject: Re: [Repeater-Builder] t800 manuals hi all this does is hold the channals up to 99.do u still have the eprom in this ?i dont have a manual for this ,sorry but will check later but as i said i dont think i do ,.. what moduals do u have ??are thayt855-20?t856-20 ???if u like any info on programming this let me know . Captainlance [EMAIL PROTECTED] wrote: I am seeking a manual, print, or actual unit.. a TS0089 Speaker and channel switch assembly for a 800 series repeater/base station. Help! Lance, N2HBA - Original Message - From: vince To: Repeater-Builder@yahoogroups.com Sent: Thursday, November 23, 2006 12:38 PM Subject: [Repeater-Builder] t800 manuals hi here you are let me know if this are any good for you all i have more tate manuals just email me and if anyone as any thing of intrest to me let me now, by the way i allso have cleartone ch650 /cm7000/7000a4 and rare ex met manuals ok glad to be of help 73s -- Yahoo! Cars NEW - sell your car and browse thousands of new and used cars online search now --
Re: [Repeater-Builder]Repeater Controller (new)
The 27C64 is a low power version of the 2764 so it depends on the design of your controller as to exactly what will happen if you try to substitute the higher power version. They are pin for pin interchangeable. Generally the high power version requires more TTL drive while it provides more drive on the output. If you have access to a UV eraser, why don't you erase the existing 27C64 and reprogram it? Digikey has the 27C64 if you think you need to go that way. I erased the EPROMs in a Tait 800 and reprogrammed them with the new frequency info. Some of the older EPROMs will erase, and you will find that some won't erase at all. You just have to give it a try. 73 - Jim W5ZIT -Original Message- From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Fri, 24 Nov 2006 11:21 AM Subject: [Repeater-Builder]Repeater Controller (new) I am helping the club bring an repeater back up on air, and I am working on the controller. I am trying to change the callsign in it, I have found what info I need, but my question to the group is- The controller uses a 27c64 EPROM, and all I have is 2764 types? Can I use the ones I have, or do I need to get the right one? I am new to the EPROM world, so I don't know much about them. It goes to show one is never too old to learn a new part of the hobby... 73 Mike - N7ZEF Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.
RE: [Repeater-Builder] Feed-Through Caps
Gary, The parallel capacitance and voltage rating of feedthrough filters should be selected after careful consideration of the signal frequencies you want to pass, the DC and/or AC voltage levels expected, and the RF frequency and power levels you want to block. Some feedthrough filters are Pi-networks, while some are L-networks. While I don't want to make this an involved science project, I must point out that all feedthrough filters are not alike, and you should choose wisely. The source and load impedances of the circuits involved may affect the selection of the ideal filter. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Gary Sent: Friday, November 24, 2006 2:50 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] feed through caps Anyone have a good source for screw mount chassis feed through caps? Some place without a big minimum order. Need to bring a few more signals in and out of my RF boxes.
RE: [Repeater-Builder] Receiver crystal filter
Make sure that you have the signal level to use a crystal filter. Some can be as low as 2db insertion loss, others can be as high as 10db. At 11:44 AM 11/24/06, you wrote: John, Front-end crystal filters are generally available only up to 200 MHz or thereabouts, so you may not find a supplier of such a filter for the 70cm band. Here is one of several sources of crystal filters: http://www.mtronpti.com/products/index.php?id=65 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of johnmichaelwelton Sent: Sunday, November 19, 2006 1:19 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Receiver crystal filter Any recommendations for a receiver crystal filter for 2M or 440 repeater application? Thanks, John/N4SJW Yahoo! Groups Links
Re: [Repeater-Builder] Re: Need Help identify boards on UHF Mitrek
By the way, Miguel, there is an article at www.repeater-builder.com on that tone board, and another on how to make your own tone plugs for it. Just click on Motorola and then on Mitrek. Mike WA6ILQ At 03:50 AM 11/24/06, you wrote: Thank you Ken!!! Happy Holiday's Miguel, ai4sb --- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote: one is a HLN4181 *(is this the pl.tone board) ---Yes, that is the reedless PL board. 2nd is a HLN4012 A2 (what is this one) that is a timeout timer board. Yahoo! Groups Links
