[Repeater-Builder] Re: Adding capacitors to lower electric bill
We had our fill of those here, too. The hot side of the AC line (if you were lucky, polarized plugs were rare in those days) was connected directly to a 35W4 or some such half wave rectifier tube and later to a selenium half wave rectifier with the other side of the AC line being connected as the negative lead (fortunately NOT to the chassis). Usually, there were a couple of 0.01uf capacitors from each side of the line to the chassis, however. Doubt I need to explain the joys one could experience with that arrangement! And, to top it off, each and every one of those radios proudly bore our UL stamp of approval! They used to call them AC/DC radios because, if you lucked out and got the polarity right, the radio didn't care what the source was as long as it was somewhere near 100 volts DC or RMS. Tom --- In Repeater-Builder@yahoogroups.com, Gordon Cooper zl...@... wrote: Another quirk. Sixty plus years ago in England, power factor was not the main concern. Many of the domestic radio receivers were transformerless and used half-wave rectification to obtain D.C. for the tubes. A consequence was a fair dose of D.C. flowing in the street power mains. Gordon ZL1KL Tauranga N.Z.
RE: [Repeater-Builder] Unknown uvhf antenna
Have you tried to resonate it at 27 MHz? From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Ian Wells Sent: Monday, August 23, 2010 10:50 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Unknowen uvhf antenna Hi guys .I have a client that has a marine antenna that is suppose to be a VHF 156mhz antenna but it is showing up as mega high swr From the base to the coil above is 115mm .the center wire finishes just above the spiral wrap (picture on the left )and is 90mm long and the spring is connected to the braid under the brass crimp and extends in the picture in the right 950mm long.Can anyone identify the type so we may check the lengths to see why the swr is over 3.1 when the manufacturers specs should be 1.2 Thank You ,Ian Wells Kerinvale Comaudio, 3A Murchison Street, Biloela.4715 Ph 0749922449 Mb 0409159932 Hm 0749922574 Fx 0749922767 www.kerinvalecomaudio.com.au http://www.kerinvalecomaudio.com.au/ image002.jpgimage004.jpg
RE: [Repeater-Builder] Unknown uvhf antenna
I have had a further look at it today and might have found the reason for the high swr .The coil didn't seem to be earthing in the braid .When moving the coax the swr was all over the place .I re crimped the coil under the coax braid and the swr is now below 1.5:1 on the marine channels . Thank You, Ian Wells, Kerinvale Comaudio, 3A Murchison Street,Biloela.4715 Ph 0749922449 or 0409159932 or 0749922574 www.kerinvalecomaudio.com.au ---Original Message--- From: Stanley Stanukinos Date: 8/24/2010 9:48:09 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Unknown uvhf antenna Have you tried to resonate it at 27 MHz? From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups com] On Behalf Of Ian Wells Sent: Monday, August 23, 2010 10:50 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Unknowen uvhf antenna Hi guys .I have a client that has a marine antenna that is suppose to be a VHF 156mhz antenna but it is showing up as mega high swr From the base to the coil above is 115mm .the center wire finishes just above the spiral wrap (picture on the left )and is 90mm long and the spring is connected to the braid under the brass crimp and extends in the picture in the right 950mm long.Can anyone identify the type so we may check the lengths to see why the swr is over 3.1 when the manufacturers specs should be 1.2 Thank You ,Ian Wells Kerinvale Comaudio, 3A Murchison Street, Biloela.4715 Ph 0749922449 Mb 0409159932 Hm 0749922574 Fx 0749922767 www.kerinvalecomaudio.com.au image0021.jpgimage0042.jpg
[Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
I've been working on a clubs 223.96Mhz repeater that the receiver lost sensitivity. It went deaf, so much that the squelch would not even work. It appears that the plastic variable capacitors in the front end have gone bad. It was in a very damp water tank environment and this summer was just too much for it. Anyway, has anyone found a good ceramic replacement for the plastic caps that are a drop-in replacement for the plastic caps in a Spectrum receiver? I think I'm just going to change them all and be done with it. The caps in the 220 version of the receiver are 20 picofarads. The club has 5 more Spectrum receivers that will probably need cap replacement too, some on 2 meters, 440 and 220. I only want to do this once and make it an easy repair. If I found a good replacement part I'll buy a load of them in various sizes. It seems that there is a very low interest in repeater repair over the years. I get many requests for fixing repeaters, and I'm surprised that it is so hard get someone to even hold the flashlight. It's discouraging.I would like to see some interest for the future of repeaters and ham radio. Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike
RE: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
Joe, No help on the caps but felt like commenting on the other part of your post. I have seen some of the same things. I have had people say that they want to help with the repeater but if you call they are never available. They always have some reason why they can't help yet they are the first to call when there is a problem with the repeater. On a more positive note... I took both of my boys to the Huntsville Hamfest over the past weekend and they both really enjoyed it. They have grown up around ham radio, have made international DX contacts, and have helped me tune MASTR II units and duplexers. My youngest son is the more technically minded of the two and he was completely fascinated with many of the items in the flea market section of the hamfest. It was really good to see him so interested. There were a number of people that felt the same way because he came home with a bag full of free stuff that people gave him and I think some of it was because of his enthusiasm and interest. I don't think the future is hopeless but I do think that youth need more exposure to ham radio and all of its many aspects. Jamey Wright WR4JW Systems Analyst/EDACS Administrator Morgan County EMCD 911 Decatur, AL 256-552-0911 -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of Joe Sent: Tuesday, August 24, 2010 10:11 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question It seems that there is a very low interest in repeater repair over the years. I get many requests for fixing repeaters, and I'm surprised that it is so hard get someone to even hold the flashlight. It's discouraging.I would like to see some interest for the future of repeaters and ham radio. Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike
Re: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
Try Dans Small Parts and Kits.net All one word (no spaces) He seems to have a lot of different trimmers listed. Ralph,W7HSG - Original Message - From: Joe k1ike_m...@snet.net To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 24, 2010 8:11:22 AM Subject: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question I've been working on a clubs 223.96Mhz repeater that the receiver lost sensitivity. It went deaf, so much that the squelch would not even work. It appears that the plastic variable capacitors in the front end have gone bad. It was in a very damp water tank environment and this summer was just too much for it. Anyway, has anyone found a good ceramic replacement for the plastic caps that are a drop-in replacement for the plastic caps in a Spectrum receiver? I think I'm just going to change them all and be done with it. The caps in the 220 version of the receiver are 20 picofarads. The club has 5 more Spectrum receivers that will probably need cap replacement too, some on 2 meters, 440 and 220. I only want to do this once and make it an easy repair. If I found a good replacement part I'll buy a load of them in various sizes. It seems that there is a very low interest in repeater repair over the years. I get many requests for fixing repeaters, and I'm surprised that it is so hard get someone to even hold the flashlight. It's discouraging.I would like to see some interest for the future of repeaters and ham radio. Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike
[Repeater-Builder] Re: Spectrum Comms SCR200A 220 receiver question
The trimmer caps should be easy to find at Jameco, Hamtronics, Digikey and Mouser. If you have nothing to lose, try a small amount of Caig Labs DeOxit first. s. Joe k1ike_m...@... wrote: I've been working on a clubs 223.96Mhz repeater that the receiver lost sensitivity. It went deaf, so much that the squelch would not even work. It appears that the plastic variable capacitors in the front end have gone bad. It was in a very damp water tank environment and this summer was just too much for it. Anyway, has anyone found a good ceramic replacement for the plastic caps that are a drop-in replacement for the plastic caps in a Spectrum receiver? I think I'm just going to change them all and be done with it. The caps in the 220 version of the receiver are 20 picofarads. The club has 5 more Spectrum receivers that will probably need cap replacement too, some on 2 meters, 440 and 220. I only want to do this once and make it an easy repair. If I found a good replacement part I'll buy a load of them in various sizes. It seems that there is a very low interest in repeater repair over the years. I get many requests for fixing repeaters, and I'm surprised that it is so hard get someone to even hold the flashlight. It's discouraging.I would like to see some interest for the future of repeaters and ham radio. Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike
Re: [Repeater-Builder] URL refresh
I found a phone number for Glenn. I called and left a message offering web space on the RB site for his 222 maxtrac conversion article. Hopefully we'll get a positive response. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 Mike Morris wrote: The members.aol web server has been shut down since november of 2008. You must have found it somewhere else (and I'd like to see it as well). Mike WA6ILQ At 07:16 PM 08/22/10, you wrote: Is there a refreshed URL for the site regarding Maxtrac conversions to 222 MHz? I thought I surfed to the site a few weeks ago but didn't bookmark it. Thanks Mike / W5JR Take a look at this link http://members.aol.com/w8ak/maxtrac222.htm I ran into Glenn, W8AK out at Dayton back in May.. He had a couple of these Maxtracs set up as a repeater on 224 mhz and seemed to work real nice.. I have not tried the conversion myself but it looks like it would be a nice way to link on 222 mhz if someone wanted to give it a try.. Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] URL refresh
Thanks Scott thats info we can NOT lose ... Rick va3rzs On Tue, Aug 24, 2010 at 1:29 PM, Scott Zimmerman n3...@repeater-builder.com wrote: I found a phone number for Glenn. I called and left a message offering web space on the RB site for his 222 maxtrac conversion article. Hopefully we'll get a positive response. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 Mike Morris wrote: The members.aol web server has been shut down since november of 2008. You must have found it somewhere else (and I'd like to see it as well). Mike WA6ILQ At 07:16 PM 08/22/10, you wrote: Is there a refreshed URL for the site regarding Maxtrac conversions to 222 MHz? I thought I surfed to the site a few weeks ago but didn't bookmark it. Thanks Mike / W5JR Take a look at this link http://members.aol.com/w8ak/maxtrac222.htm I ran into Glenn, W8AK out at Dayton back in May.. He had a couple of these Maxtracs set up as a repeater on 224 mhz and seemed to work real nice.. I have not tried the conversion myself but it looks like it would be a nice way to link on 222 mhz if someone wanted to give it a try.. Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike Except for me!!! And I thank this whole group for making it possible. Ross www.kc7rjk.net
Re: [Repeater-Builder] Spectrum Comms SCR200A 220 receiver question
Hello Ross, I'm glad to hear that you are interested in repeaters! I hope that someone in your area elmers you so that the tradition can continue. Repeaters are a difficult thing to just jump into and the test equipment that is nice to have can get expensive. 73, Joe, K1ike On 8/24/2010 5:20 PM, Ross Johnson wrote: Others experiencing this? The younger hams just don't seem to have the curiosity that I had years ago. 73, Joe, k1ike Except for me!!! And I thank this whole group for making it possible. Ross www.kc7rjk.net http://www.kc7rjk.net
[Repeater-Builder] Re: Intermod Calculation
We also had a problem with a 454 pager. Quintron with a 1/4 k amp. Only one in the metro area had a spur, but that one traveled as the PA cage changed temperature. Got a hold of the paging company, and they turned each one off until we saw the spur go away. Final tube had been replaced and not properly neutralized. WalterH --- In Repeater-Builder@yahoogroups.com, Tom W2MN w...@... wrote: We had a pager spur problem with our repeater (no pl). The problem would come and go. We determined it happened mostly with time of day (outside temperature). Sometime it was just a short 1 second event and sometimes it would hold for a bit more (maybe 2 -5 sec). We setup a satellite multimode radio (actually dial in the frequency with widest bandwidth setting) and monitored the repeater input with a tape recorder and vox. We did this to capture the audio so we could listen to characteristics and THE CW CALLSIGN. We captured enough of the callsign that we were able to indentify the whole call (and freq) from the FCC database. With that, we were able to monitor the repeater and the pager for hits. Yes, it did hit some times and not others. The reason was, it was caused by an unstable spur that drifted up and down the ham band with temperature and the amount of pager traffic. It was also hitting other repeaters as it drifted but most of the other repeaters had pl. There was a chain of pagers using the same freq and callsign and we had to figure out which tower it was. We used a beam antenna and chased the spur up/down the band until we were able to get a definite direction. The next step as to visit the site AREA with an HT and just scan the ham repeater input freqs during the likely time of day. Bingo, the spur was loud and clear!. Of course the pager owner was in denial but being a pest for a couple of weeks got the problem removed. They claim it was a spur in the final PA that had been serviced just at the time the problem started. They replaced the PA. Hope this story helps. Tom
[Repeater-Builder] Re: made a rpt
--- In Repeater-Builder@yahoogroups.com, Rodrigo Lima limoidefilho...@... wrote: ola a todos alguem teria um esquema simples de uma placa controladora de repetidora que pudesse controlar dois radios de vhf e mais um link em uhf, sendo 2 gm300 e um maxtrac da motorola .obrigado (moderators note:) Can someone post a translation so that the non-spanish peakers can help this gentleman? PY2BBS IN sj da boa vista sao paulo makes boards for repeaters pe1aby/pp2 /pu2zhz
[Repeater-Builder] tkr820 repeater
who want to help me with my repeater who light as a cristmas tree but doing nothing or the micro processor 1 who produce the data, most lines are 'high and i can not communicate with my programmer ( thats power,busy,tx light up) here in Brasil is very difficuld (portuguese) and I am Dutch so whITCH is willing to advise SOFAR NON replayed on my question there is a manual,scoop,and most usual mesure equipment incl kpt50 programmer and eeprom Cees PE1ABY/PP2 shortley PU2ZHZ
Re: [Repeater-Builder] tkr820 repeater
http://www.repeater-builder.com/kenwood/pdfs/tkr-820-svc-man-large.pdf Best Regards, Chris Carruba Co-Admin irc.spidernet.org http://www.spidernet.org CompuTec Data Systems Custom Written Software, Networking, Forensic Data Recovery From: cberende c...@tecees.com To: Repeater-Builder@yahoogroups.com Sent: Tue, August 24, 2010 6:44:23 PM Subject: [Repeater-Builder] tkr820 repeater who want to help me with my repeater who light as a cristmas tree but doing nothing or the micro processor 1 who produce the data, most lines are 'high and i can not communicate with my programmer ( thats power,busy,tx light up) here in Brasil is very difficuld (portuguese) and I am Dutch so whITCH is willing to advise SOFAR NON replayed on my question there is a manual,scoop,and most usual mesure equipment incl kpt50 programmer and eeprom Cees PE1ABY/PP2 shortley PU2ZHZ
Re: [Repeater-Builder] Fw: DON'T BUY IT AND DON'T USE IT !!!------READ IT
Zazzle allows you to print custom stamps, anything you'd like to be customized on a stamp you can have customized on a stamp basically as long as it's not explicit or vulgur: If i wanted I could get wedding photos (which is what most people use the service for), baby pictures, etc... It is in BY NO MEANS how connected to Government postage other than the fact that it uses the digital USPS.com digital postage metering: the same digital postage that businesses have been using if they send bulk mail through their office for years and years, even before the internet got big. now, it just got more user friendly... it's very sad that someone would believe this racist ploy, and I am offended that something like this political in nature was sent to ham radio list...
Re: [Repeater-Builder] Fw: DON'T BUY IT AND DON'T USE IT !!!------READ IT
Ditto! - Original Message - From: AARON LEWIS DINKIN To: Repeater-Builder@yahoogroups.com Cc: a737dri...@consolidated.net ; candyman194...@yahoo.com ; juanita_lu...@yahoo.com ; k5...@yahoo.com ; kd5...@classicnet.net ; ke6...@hotmail.com ; ke6...@yahoo.com ; kqgard...@aol.com ; marqueswashing...@dcccd.edu ; meltonja...@hotmail.com ; mesquite...@yahoogroups.com ; ram_gue...@deanfoods.com ; AD5KZ Roy Rabey ; Andy Carstarphen ; Billy Mac ; Bob Peters ; Brad Penn ; Brad Penn ; Chad Floyd ; Cindy Lewis ; Cindy Lewis ; Craig A. Green ; David Kaun ; Diane Malene ; Dr. D.M. Jonsson ; Epi ; Frank Bernosky ; George Rice Jr ; gwen Dow ; jason Lewis ; Jay ; John Donaldson ; Katherine Sullivan ; ke5nss ; Lance Fauber ; Lorne Johnson ; Martin Maly ; Maryann 2 Lewis ; Maryann Lewis ; Mike Lewis ; Paul Sullivan ; Rick Pourciau ; Ronald Abraham ; Scott Hammond ; Thomas Lewis ; Tim Green ; Tim Green ; Tim Lewis ; Town East Ford ; Vicky Contreras ; Warren Moxley Sent: Tuesday, August 24, 2010 10:11 PM Subject: Re: [Repeater-Builder] Fw: DON'T BUY IT AND DON'T USE IT !!!--READ IT Zazzle allows you to print custom stamps, anything you'd like to be customized on a stamp you can have customized on a stamp basically as long as it's not explicit or vulgur: If i wanted I could get wedding photos (which is what most people use the service for), baby pictures, etc... It is in BY NO MEANS how connected to Government postage other than the fact that it uses the digital USPS.com digital postage metering: the same digital postage that businesses have been using if they send bulk mail through their office for years and years, even before the internet got big. now, it just got more user friendly... it's very sad that someone would believe this racist ploy, and I am offended that something like this political in nature was sent to ham radio list...
[Repeater-Builder] Re: Fw: DON'T BUY IT AND DON'T USE IT !!!------READ IT ..I cant ,I got a burka !
Megga dittos It's kinda hard to use a computer or a radio when you got a bag on your head . That' if you still have one! Subject: Fw: DON'T BUY IT AND DON'T USE IT !!!--READ IT DON'T BUY IT AND DON'T USE IT! Apparently they think that putting hearts and butterflies on the new stamp will make most people not realize that the rest is Arabic and probably not something we want to support. New Stamp - the second one!!! USPS New 44-cent Stamp Celebrates a Muslim holiday. If there is only ONE thing you forward today... let it be this! President Obama has directed the United StatesPostal Service to REMEMBER and HONOR EID - the MUSLIM holiday season with a new commemorative 44-cent First Class Holiday Postage Stamp. REMEMBER to adamantly vocally BOYCOTT this stamp, when you are purchasing your stamps at the post office. All you have to say is No, thank you, I do not want that Muslim Stamp on my letters! To use this stamp would be a slap in the face to all those AMERICANS who died at the hands of those whom this stamp honors. REMEMBER the MUSLIM bombing of Pan Am Flight 103! REMEMBER the MUSLIM bombing of the World Trade Center in 1993! REMEMBER the MUSLIM bombing of the Marine Barracks in Lebanon! REMEMBER the MUSLIM bombing of the Military Barracks in Saudi Arabia! REMEMBER the MUSLIM bombing of the American Embassies in Africa ! REMEMBER the MUSLIM bombing of the USS COLE! REMEMBER the MUSLIM attack of 9/11/2001 ! REMEMBER all the AMERICAN lives that were lost in those vicious MUSLIM attacks! Pass this along to every Patriotic American that you know and get the word out! Honor the United States of America
