Re: [Repeater-Builder] Low sens on a 2600 monitor
Sorry to butt into this conversation, but I need a source for these fuses. I have a 2001D monitor, that takes a 1/8a fuse.. Any of you guys able to help? Mike KA4MKG Eric Lemmon wrote: Ben, Both the GEN and the ANT connectors have 1/16 ampere pico fuses behind them, just in case the technician keys a transmitter while connected to them. It must happen a lot, since fuses were provided. It takes a 7/16-inch nut driver to remove the connectors, and the pico-fuse plugs into the back of the connector. Check the fuses for continuity to ascertain if that's the problem. Extra fuses were included in a small envelope packed in the instrument cover storage compartment. Exact replacement fuses are available from Digi-Key as #F2307-ND at $1.19 each. If you need to get back in operation before your replacement fuses arrive, just switch the GEN and ANT connectors. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 6:02 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Low sens on a 2600 monitor Well just found this group so here is another question...last for now I promise:-) My 2600 service monitor has lost a lot of its hearing. It's still 100% on everything else, but it has lost a lot sens. It was just one of those turn it on and what happened type of thing. Any ideas on this one? Thanks! Ben
Re: [Repeater-Builder] Additional Loss From Trees
Actually Ken the loss at 800 MHz is usually less than UHF, especially in the long needle pine forests. Typical loss from forests, depending upon the density will be 10 to 20 db. Long needle pine forests will cause an additional 10 db loss at UHF frequencies and gets worse at 512 MHz. Fred W5VAY - Original Message - From: Ken Arck To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 06, 2007 7:05 PM Subject: Re: [Repeater-Builder] Additional Loss From Trees At 04:55 PM 2/6/2007, you wrote: It is a noticeable loss when the leaves come out. I've pretty much noticed that a fairly noisy signal with no leaves becomes unreadable when the leaves are full. My opinion would be additional antenna height could be helpful since there would be less density to attenuate the signal. ---Just ask the PS agencies in rural areas who have been foolish enough to migrate to 800 mHz trunking about foliage absorption... I'd bet they'd have a few things to say about that :-) Ken -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net
[Repeater-Builder] Re: Q2220E to 220 MHz Duplexer Project - First Draft Ready
I'd be curious as to what the frequency response curves for this creature look like without cutting down the cavity and the loops, and how it actually works with actual transmit power on an antenna. What does the VSWR look like on the two ports? Have you compared the dimensions you acertained for the stubs against what sinclair used in a Q2221E?
RE: [Repeater-Builder] UHF to VHF fiberglass antenna conversion
Did you add a quarter wave radial to the top section? _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of matushka_99 Sent: Tuesday, February 06, 2007 2:15 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] UHF to VHF fiberglass antenna conversion I have a commerical grade 440 Mhz antenna that I want to convert to 2 meters. I have unscrewed the N connector off the antenna along with the 9 or so UHF elements that comprised the radiating portion. I added three 1/2 wave 32.375 inch elements(center to shield X 3) and then added some some extra length to the coppper stub/w center conductor at the base of the antenna to make a 1/4 Wave element(about 16.275 inches total). Then I soldered the 3 1/2 wave elements(already soldered) to the 1/4 wave at the base of the antenna. I checked for shorts and and then reiserted the new 2 Meter radiator back into the fiberglass cavity of the antenna. I made 3 new radials(about 20 inches/radial) and installed them onto the base of the antenna and checked the SWR! The antenna is showing in the RED no matter where I move the frequency to on my MFJ antenna calibration checker. Does anyone have any ideas on what is causing the antenna to be so far off? The wire I used is RG 8X mini foam with a Velocity Facor of 0.80.
[Repeater-Builder] Motorola repeaters
I have obtained several Motorola Syntor X's Radios and some Motorola Micor's and I want to set up a couple as 2 meter repeaters but I am not sure wich is the best to use for this operation. I have found small amounts of info on both but I want more power since I have some hills to deal with here. Thanks, Luke.
[Repeater-Builder] Re: Master II UHF repeater station stays keyed...
I have two stations and swapped all the cards from the working one...it stays keyed. It's like a puzzle... Ben A shorted transistor in the keying circuit on the 10V Reg card maybe? Jamey Wright Systems Analyst Morgan Coun
Re: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
I had similar problems with one of my machines. The repeater would ghost key about 20 seconds after PTT droped. This was traced to bad PNP transistors on the keying circuit. On 2/6/07, w4wsm [EMAIL PROTECTED] wrote: I have two stations and swapped all the cards from the working one...it stays keyed. It's like a puzzle... Ben A shorted transistor in the keying circuit on the 10V Reg card maybe? Jamey Wright Systems Analyst Morgan Coun Yahoo! Groups Links
[Repeater-Builder] Controllers
Nate, Do you know where that line came from that says something about http://www.ourazle.com/forum ? That is here in my area, how did it get in a post to the RB if you did not put it there? Is somebody Spamming us now? Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr Sent: Tuesday, February 06, 2007 5:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Controllers Its the talk of the town. The all new OurAzle Forum http://www.ourazle.com/forum On 2/6/07, George Poteat [EMAIL PROTECTED] wrote: Is there a reccomendation for GOOD controller out there that has all the bells and whistles INCLUDING BUILT IN sub-audible (ctcss) decoder. We are thinking of moving an old RC-96 to a secondary repeater and replacing it with a gud new 'un. $1000 +/- range? Club money, not mine ';o) CAT 1000 need external decoder, if so, what is good? George - K4GLP The announced, but not yet released, S-Com 7330 is supposed to have CTCSS encode, including software-selectable 120 and 180 degree STE/reverse-burst, according to the published anticipated command change document, but it will not decode. You'll still need a decoder on your receiver. Most folks use the Communications Specialists TS-32 or TS-64 in most stuff people are building today, or they use the original manufacturer's encoders and decoders in the commercial rigs that most folks convert to a repeater. You didn't say what type of repeater you're working on, but folks here will certainly have opinions about the best way to do it in your particular rig, if you share that information. Nate WY0X Yahoo! Groups Links p class=style1Visit a href=http://www.ourphonelist.com;OurPhonelist.combrIt's free and you'll never lose track of a phone number again! /a/p p class=style1Visit a href=http://www.ourphonelist.com;OurPhonelist.combrIt's free and you'll never lose track of a phone number again! /a/p
RE: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
Are you doing these tests while using an outboard controller? Does it do it with the PA output connected directly to a dummy load? I'm wondering if you have excessive RF floating around that's somehow getting into the logic circuitry. Does it do it with PA disconnected from the exciter? I'm wondering if the power supply voltage is crashing under load, causing strange behavior in logic circuits. Does it do it if you key the station using the mic? If you have already, pull all of the cards out of the cage except for the 10V regulator and key the station that way. Does it still hang up? Sounds like a real mystery... --- Jeff -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 5:15 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Master II UHF repeater station stays keyed... I have two stations and swapped all the cards from the working one...it stays keyed. It's like a puzzle... Ben A shorted transistor in the keying circuit on the 10V Reg card maybe? Jamey Wright Systems Analyst Morgan Coun Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.411 / Virus Database: 268.17.29/673 - Release Date: 2/6/2007
[Repeater-Builder] development of 820 MHz duplexer
hello, all I have deigned a duplexer(Tx-811.1-819.2 MHz, Rx-856.1-864.2 MHz) . It is giving 70 dB isolaton, 14 dB return loss and 1.0 dB insertion loss. I have made this in 35 mm cavity. This is band reject notch type duplexer. will it work at 50 watts (intermitent) and 25 watts(continuous) regularly? please give me feedback. thanks a lot in advance for your feedback. vikash gupta - Food fight? Enjoy some healthy debate in the Yahoo! Answers Food Drink QA.
Re: [Repeater-Builder] Re: New article on Channel Element/ICOM stability - W3KKC
Kevin Custer wrote: I'll post that text here, so you don't have to go to the article: There is one way to cheat if all you have is ECs. An EC will maintain better than 5ppm from +32 degrees F to above 120 degrees F only if you have a stable +5v DC voltage on the compensation line. Kevin, Would it be better to replace the 2 resistors with a small low current TO-92 +5v regulator. That will provide a more stable voltage and is smaller than 2 resistors. Just my 2ยข John John Mc Hugh, K4AG Coordinator for Amateur Radio National Hurricane Center, WX4NHC Home page:- http://www.wx4nhc.org
RE: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
Are you using the GE channel guard board? If so pull it out. Also is the PTT light on the 10v reg card on? -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 4:15 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Master II UHF repeater station stays keyed... I have two stations and swapped all the cards from the working one...it stays keyed. It's like a puzzle... Ben A shorted transistor in the keying circuit on the 10V Reg card maybe? Jamey Wright Systems Analyst Morgan Coun Yahoo! Groups Links
RE: [Repeater-Builder] Low sens on a 2600 monitor
Go to your local electronics supply house. They should have them. Ask for instrument fuses. 73 Gary K4FMX _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Pugh Sent: Wednesday, February 07, 2007 8:50 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Low sens on a 2600 monitor Sorry to butt into this conversation, but I need a source for these fuses. I have a 2001D monitor, that takes a 1/8a fuse.. Any of you guys able to help? Mike KA4MKG Eric Lemmon wrote: Ben, Both the GEN and the ANT connectors have 1/16 ampere pico fuses behind them, just in case the technician keys a transmitter while connected to them. It must happen a lot, since fuses were provided. It takes a 7/16-inch nut driver to remove the connectors, and the pico-fuse plugs into the back of the connector. Check the fuses for continuity to ascertain if that's the problem. Extra fuses were included in a small envelope packed in the instrument cover storage compartment. Exact replacement fuses are available from Digi-Key as #F2307-ND at $1.19 each. If you need to get back in operation before your replacement fuses arrive, just switch the GEN and ANT connectors. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 6:02 AM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Low sens on a 2600 monitor Well just found this group so here is another question...last for now I promise:-) My 2600 service monitor has lost a lot of its hearing. It's still 100% on everything else, but it has lost a lot sens. It was just one of those turn it on and what happened type of thing. Any ideas on this one? Thanks! Ben
[Repeater-Builder] Internal cables for IC-RP4020 Repeater
Hi guys: I received an Icom IC-RP4020 from a local group due to the fact that it didn't work (I'm repairing it for them). Last summer, the repeater shack became home for a whole cities worth of mice. The 4020 took the entire grunt of the damage. Does anyone have any of the interconnect harnesses from a scraped 4020? Trying to patch this thing would take hours and hours of work (YES, it's that bad). I would repair it, but many of the cable use shielded cables which HAVE to get replaced. Thanks for any and all suggestions. Tedd Doda, VE3TJD Lazer Audio and Electronics Baden, Ontario, Canada www.ve3tjd.com (personal) www.eraradio.ca (Linked repeater system)
Re: [Spam] Re: [Repeater-Builder] Mastr II Station Power Supply Problem?
Nate Duehr wrote: Your organization going to be selling off those VHF's? Always looking... had to ask. Nate Don't know-we're storing them for the cust. till they decide what they want to do. Don't worry-this is the first place I think of if something is up for grabs! -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Additional Loss From Trees
Ken Arck wrote: At 04:55 PM 2/6/2007, you wrote: It is a noticeable loss when the leaves come out. I've pretty much noticed that a fairly noisy signal with no leaves becomes unreadable when the leaves are full. My opinion would be additional antenna height could be helpful since there would be less density to attenuate the signal. ---Just ask the PS agencies in rural areas who have been foolish enough to migrate to 800 mHz trunking about foliage absorption... I'd bet they'd have a few things to say about that :-) Ken Unless you live next to a big lake and you get band enhancement over the summer that makes any foliage absorption unmeasurable... ;c\ -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Motorola repeaters
Luke wrote: I have obtained several Motorola Syntor X's Radios and some Motorola Micor's and I want to set up a couple as 2 meter repeaters but I am not sure wich is the best to use for this operation. I have found small amounts of info on both but I want more power since I have some hills to deal with here. Thanks, Luke. The Micor's. Decidedly. The Syntor's will work just fine, but (1) you need two of them to make a repeater, where the Micor is duplexable in-cabinet, and (2) the Syntor's are more radio then you need for a repeater, since they are programmable to 32 channels or so, where the Micor is crystal controlled, and putting more then one or two channels in them starts getting expensive quick. Make the repeater out of a Micor, and program the Syntor's as user radios! Check out Repeater-builder.com under Motorola. -- Jim Barbour WD8CHL
[Repeater-Builder] Pacific Circuit Design SR2-A manual?
Hi Guys, Can anyone help with a manual for the above controller please? Any help would be much appreciated.Cheers Dave UZN
Re: [Repeater-Builder] Motorola repeaters
On the other hand Jim, the Syntor X's are a newer radio with less chance of component failure. The 100 watt VHF drawer units can be picked up for $10.00 at swapmeets and if you have an eeprom burner you can program them yourself for an investment of $20.00 for the two radios. Even if you have a free Micor, the channel elements would cost more than double that price. As far as I know, performance-wise, the two models are equal except the Micor may require re-work of the front-end helical resonators to move a high band receiver down into the 2 meter range. Also, a high band Micor transmitter may require some padding to get it down as well. Luke didn't say whether he had base or mobiles of each type, or which frequency range they were. These factors would affect his decision. Since he has the Syntor's already and is considering more than one repeater the less expensive out would be to go with them and make up one or two spares. 73 de Jack - N7OO - Original Message - From: Jim B. To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 07, 2007 10:57 AM Subject: Re: [Repeater-Builder] Motorola repeaters Luke wrote: I have obtained several Motorola Syntor X's Radios and some Motorola Micor's and I want to set up a couple as 2 meter repeaters but I am not sure wich is the best to use for this operation. I have found small amounts of info on both but I want more power since I have some hills to deal with here. Thanks, Luke. The Micor's. Decidedly. The Syntor's will work just fine, but (1) you need two of them to make a repeater, where the Micor is duplexable in-cabinet, and (2) the Syntor's are more radio then you need for a repeater, since they are programmable to 32 channels or so, where the Micor is crystal controlled, and putting more then one or two channels in them starts getting expensive quick. Make the repeater out of a Micor, and program the Syntor's as user radios! Check out Repeater-builder.com under Motorola. -- Jim Barbour WD8CHL 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.. 12New Members 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] Re: Master II UHF repeater station stays keyed...
Just went down and checked a few things. Yes, CG is on transmitter. I pulled the cable to it and the TX went off. It wouldn't key with the tone disconnected...is there a jumper you have to use for no tone? It's the intercom button on the 10volt card that causes the tx to go off when you push it. I've noticed when the TX is off using this switch I hear a hum like it's pulling more power. Maybe normal but doesn't make the sound when tX is full power. PPT light is on on the 10v board. Never goes off even after pulling CG. This one hasn't had any mods. All original GE as far as I know. Going up on the hill to play with the other one now... Thanks for everything, Ben --- In Repeater-Builder@yahoogroups.com, Fred Flowers [EMAIL PROTECTED] wrote: Are you using the GE channel guard board? If so pull it out. Also is the PTT light on the 10v reg card on?
[Repeater-Builder] Re: Master II UHF repeater station stays keyed...
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo [EMAIL PROTECTED] wrote: Are you doing these tests while using an outboard controller? PA is into a dummy load so I don't think it's RF. Haven't disconnected the PA but will try as soon as it gets a little warmer. It is putting out full power though. I don't think it made any difference pluging the mic in. This is with just the built in controller. Yep, pretty sure with all but the 10v card it stays keyed. All the cards work in my other station so they seem to be OK. Can you think of anything outside of the cards that would keep it keyed? Thanks, Ben Does it do it with the PA output connected directly to a dummy load? I'm wondering if you have excessive RF floating around that's somehow getting into the logic circuitry. Does it do it with PA disconnected from the exciter? I'm wondering if the power supply voltage is crashing under load, causing strange behavior in logic circuits. Does it do it if you key the station using the mic? If you have already, pull all of the cards out of the cage except for the 10V regulator and key the station that way. Does it still hang up? Sounds like a real mystery...
[Repeater-Builder] Wanted: 250 watt vhf high band pa
Hi, I am in need of six 250 watt vhf high band power amps. If you have or know where I might find one or more of these beasts, I would appreciate any info. Thanks Larry Williams KE4PCZ
Re: [Repeater-Builder] Motorola repeaters
Jack Taylor wrote: On the other hand Jim, the Syntor X's are a newer radio with less chance of component failure. Not necessarily...the parts for a Syntor are harder to get, and harder to get to, and will be more expensive. Micor's are just as reliable as a Syntor X, more plentiful, and easier to work on. The 100 watt VHF drawer units can be picked up for $10.00 at swapmeets Not really important, as he already has the radios, as you mentioned as well. But finding them for $10 is NOT going to happen very often. I've never seen them go for under $50 for the 100W. I've seen 40W go for as low as about $25-30. and if you have an eeprom burner you can program them yourself for an investment of $20.00 for the two radios. Where have you found an EEPROM burner for that? All the ones I've seen have been well over $100. -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
On 2/6/07, w4wsm [EMAIL PROTECTED] wrote: I have two stations and swapped all the cards from the working one...it stays keyed. It's like a puzzle... I'm going to ask the dumb question... Is it jumpered as a repeater, has a repeater card installed, and is the squelch open on the receiver? :-) Had to ask... Nate WY0X
Re: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
On 2/7/07, w4wsm [EMAIL PROTECTED] wrote: Yes, CG is on transmitter. I pulled the cable to it and the TX went off. It wouldn't key with the tone disconnected...is there a jumper you have to use for no tone? I'm sorry, clarify... when you pulled the cable off the exciter on the left side of the drawer, or did you pull something else off? The station would stay keyed if you disconnected the PA normally... that's why I ask? It's the intercom button on the 10volt card that causes the tx to go off when you push it. Normal. It thinks you're talking on the intercom circuit. I've noticed when the TX is off using this switch I hear a hum like it's pulling more power. Maybe normal but doesn't make the sound when tX is full power. Probably normal. PPT light is on on the 10v board. Never goes off even after pulling CG. That doesn't sound right. Also confirm you're pulling the CG board in the system board area, and not the transmitter CG board. Stock GE repeaters have to use two separate boards, but if they were configured as remote bases, there is a board that will do both encode and decode that goes into the system board area (receiver CG board P908 and P909 I believe, but I'm at work and not looking at one) but it will not do them *at the same time*. This is why you have to use two stock GE boards or add a TS-32/64 to the GE stations to do a repeater that receives and transmits CG. In most configurations that are set up as remote bases... if you pull the CG board from the system board, the station unkeys. This one hasn't had any mods. All original GE as far as I know. Was it always a repeater, or was it jumpered as a remote base or ...? It kinda sounds like someone golden-screwdrivered it, but... I forgot what other cards you said it has installed. Any other cards in the cage? Also... if it has the stock repeater card, have you reduced the TX hang time on that card to the lowest setting? It will transmit for a while after the receiver closes, by whatever that pot is set to. Just throwing out some more ideas... If you're planning to run a ham controller anyway (since that internal one won't ID your repeater properly anyway)... you *might* consider pulling all the cards from the shelf except the 10V regulator, jumpering the station as a duplexed repeater from the LBI's and the docs on RB, and then seeing if you can get it to work happily with an off-board controller. But I understand the desire to get it working stock before changing anything. Both methods have merit, and I like getting the stock station working if possible before proceeding... Nate WY0X
Re: [Spam] Re: [Repeater-Builder] Mastr II Station Power Supply Problem?
On 2/7/07, Jim B. [EMAIL PROTECTED] wrote: Your organization going to be selling off those VHF's? Always looking... had to ask. Don't know-we're storing them for the cust. till they decide what they want to do. Don't worry-this is the first place I think of if something is up for grabs! LOL.. understand. Thanks Jim. I've been doing INVENTORY ... uggghh. Built a real basement workbench (always had one in the garage, but it's COLD out there!) finally... amazing what you find when you start organizing... (sigh)... Nate
Re: [Repeater-Builder] Controllers
On 2/7/07, Paul Finch [EMAIL PROTECTED] wrote: Nate, Do you know where that line came from that says something about http://www.ourazle.com/forum ? That is here in my area, how did it get in a post to the RB if you did not put it there? Is somebody Spamming us now? Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr Sent: Tuesday, February 06, 2007 5:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Controllers Its the talk of the town. The all new OurAzle Forum http://www.ourazle.com/forum It would appear so. I didn't send that. In fact, since I'm using Gmail for Domains these days as a mail interface, I don't even have a machine with a real mail program on it -- so it's not from a machine with a virus or anything like that either. The original headers on Yahoo's mail usually show the IP address of the person sending the mail if they used Yahoo's web interface, and of course, has the IP of the mail server it was received from if from a real mail server. My IP's all reverse-resolve to my domain name except my work IP, and it resolves to an old company name. But anway... I share all that because when using Gmail for mailing lists, I don't get copies of my own posts -- real or not -- unless they're replied to. They're auto archived if I get them. So I can't even (easily) research who Joe-jobbed me. (That's what the security folks call it when someone uses your e-mail address to send to a list you're on.) I didn't even click on the link -- what is it, or should I even ask? LOL... never-mind... Nate WY0X
[Repeater-Builder] Re: Low sens on a 2600 monitor
What you're looking for is also known as a pico fuse. Digi-Key Part No. F821-ND should do it. James K7ICU
[Repeater-Builder] Where to send Cushman service monitors for repair?
I've for a Cushman service monitor I need to send for repair. Can anyone recommend where to go these days?
RE: [Repeater-Builder] Re: Master II UHF repeater station stays keyed...
Yes there is a jumper. Is this a repeater? Most likely the trouble is the receiver or controller. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of w4wsm Sent: Wednesday, February 07, 2007 1:11 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Master II UHF repeater station stays keyed... Just went down and checked a few things. Yes, CG is on transmitter. I pulled the cable to it and the TX went off. It wouldn't key with the tone disconnected...is there a jumper you have to use for no tone? It's the intercom button on the 10volt card that causes the tx to go off when you push it. I've noticed when the TX is off using this switch I hear a hum like it's pulling more power. Maybe normal but doesn't make the sound when tX is full power. PPT light is on on the 10v board. Never goes off even after pulling CG. This one hasn't had any mods. All original GE as far as I know. Going up on the hill to play with the other one now... Thanks for everything, Ben --- In Repeater-Builder@yahoogroups.com, Fred Flowers [EMAIL PROTECTED] wrote: Are you using the GE channel guard board? If so pull it out. Also is the PTT light on the 10v reg card on? Yahoo! Groups Links
Re: [Repeater-Builder] Low sens on a 2600 monitor
Been there, done that. They don't have them, and can only get them in multiples of 1000! That's why I need a source. Mike Gary Schafer wrote: Go to your local electronics supply house. They should have them. Ask for instrument fuses. 73 Gary K4FMX From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Pugh Sent: Wednesday, February 07, 2007 8:50 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Low sens on a 2600 monitor Sorry to butt into this conversation, but I need a source for these fuses. I have a 2001D monitor, that takes a 1/8a fuse.. Any of you guys able to help? Mike KA4MKG Eric Lemmon wrote: Ben, Both the GEN and the ANT connectors have 1/16 ampere pico fuses behind them, just in case the technician keys a transmitter while connected to them. It must happen a lot, since fuses were provided. It takes a 7/16-inch nut driver to remove the connectors, and the pico-fuse plugs into the back of the connector. Check the fuses for continuity to ascertain if that's the problem. Extra fuses were included in a small envelope packed in the instrument cover storage compartment. Exact replacement fuses are available from Digi-Key as #F2307-ND at $1.19 each. If you need to get back in operation before your replacement fuses arrive, just switch the GEN and ANT connectors. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 6:02 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Low sens on a 2600 monitor Well just found this group so here is another question...last for now I promise:-) My 2600 service monitor has lost a lot of its hearing. It's still 100% on everything else, but it has lost a lot sens. It was just one of those turn it on and what happened type of thing. Any ideas on this one? Thanks! Ben
RE: [Repeater-Builder] Where to send Cushman service monitors for repair?
John, Here's a place near Chicago... actually in Arlington Heights. Cardinal Electronics, Inc. 1631 N. Evergreen Ave Arlington Heights, IL 60004 www.cardinalelec.com TX: 847-797-7820 FAX: 847-80-0342 Please note - I have no pecuniary interest in this company - I just know that they repair and calibrate the service monitors for the guys at my county's radio lab, along with those of the local Motorola repair shop... Their ad in the 01/07 issue of Mission Critical Communications (Page 205) says: NEW LOWER RATES Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of JOHN MACKEY I've for a Cushman service monitor I need to send for repair. Can anyone recommend where to go these days?
Re: [Repeater-Builder] Motorola repeaters
Jack Taylor wrote: On the other hand Jim, the Syntor X's are a newer .snip As far as I know, performance-wise, the two models are equal I don't know that I agree with that statement. The Syntor X, being synthesized, could be as clean as far as transmitter side band noise is concerned, but then again, at 600 kHz, it may not be. Synthesizers and PLL's are not always cleaner than crystal multipliers. They can be designed to be cleaner, but that doesn't mean they are, as the Syntor X was not designed to be a duplex radio, especially at 600 kHz. The Syntor X has a good front-end, but I doubt it will handle overload at a crowded site like the large helical front end of a Micor. The Syntor X's carrier squelch is no way as good as a Micor for repeater service (the Maratrac would be better choice there). The original poster didn't say that the Micor's he had were Stations or Mobiles. If they were Stations, they would survive the duty cycle that may be posed on the repeater. Even a Micor Mobile would survive the duty cycle better than the Syntor, because of the larger heatsink. The Micor is a heavier, and more massive radio in terms of heat removal, something to consider when building a repeater. The Micor design is approaching it's 40'th birthday, and you'll look long and hard to beat it in repeater service with any modern equipment, when comparing apples to apples. I just had a Micor receiver on the bench that I converted to the 2 meter ham band. It makes 12 dB SINAD at -117 dBm barefoot, -123 dBm with a factory Micor helical preamp, and -127 dBm (yes for 12 sinad) with a ARR GaAs Fet. I cannot turn the HP 8920 down far enough to squelch the receiver. Obviously, the receiver is better than most likely any site would allow for. For those harsh sites where preamps won't work, -117 is pretty damn good, likely better than the Syntor X in the same situation. While the Micor is old, it works and works well, still While it could be cheaper and possibly easier to build a repeater from 2, Syntor X's, I wouldn't say the performance is going to 'equal' a Micor. YMMV, Kevin Custer
Re: [Repeater-Builder] Where to send Cushman service monitors for repair?
I have used Cardinal in the past, and Bob is nice to work with. Kevin Custer N9WYS wrote: John, Here's a place near Chicago... actually in Arlington Heights. Cardinal Electronics, Inc. 1631 N. Evergreen Ave Arlington Heights, IL 60004 www.cardinalelec.com TX: 847-797-7820 FAX: 847-80-0342
RE: [Repeater-Builder] Low sens on a 2600 monitor
Mike, Since the whole purpose of the fuse in the GEN and ANT connectors is to protect the service monitor's circuitry, I'd go with the 1/16 ampere fuse, rather than the 1/8 ampere fuse. As I noted in my original post, that fuse is available from Digit-Key as #F2307-ND at $1.19 each. The difference between 1/8 and 1/16 ampere fuses will not affect accuracy. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Pugh Sent: Wednesday, February 07, 2007 5:50 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Low sens on a 2600 monitor Sorry to butt into this conversation, but I need a source for these fuses. I have a 2001D monitor, that takes a 1/8a fuse.. Any of you guys able to help? Mike KA4MKG Eric Lemmon wrote: Ben, Both the GEN and the ANT connectors have 1/16 ampere pico fuses behind them, just in case the technician keys a transmitter while connected to them. It must happen a lot, since fuses were provided. It takes a 7/16-inch nut driver to remove the connectors, and the pico-fuse plugs into the back of the connector. Check the fuses for continuity to ascertain if that's the problem. Extra fuses were included in a small envelope packed in the instrument cover storage compartment. Exact replacement fuses are available from Digi-Key as #F2307-ND at $1.19 each. If you need to get back in operation before your replacement fuses arrive, just switch the GEN and ANT connectors. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com] On Behalf Of w4wsm Sent: Tuesday, February 06, 2007 6:02 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Low sens on a 2600 monitor Well just found this group so here is another question...last for now I promise:-) My 2600 service monitor has lost a lot of its hearing. It's still 100% on everything else, but it has lost a lot sens. It was just one of those turn it on and what happened type of thing. Any ideas on this one? Thanks! Ben
