Re: [Repeater-Builder] Re: midland 13-509 220mhz to convert to repeater
At 8/2/2005 03:59 PM, you wrote: >Hi Bob, > >The Midland & Clegg receivers would be stomped >on like a "narc at a biker rally"... at most >of the major high level sites where the noise >floor is mostly a disaster and the rf is intense. Certainly the 13-509 RX doesn't have much front-end filtering. What seems to help is the fact that most high-level RF is way out of band for the 220 MHz RX, so not much filtering is needed. A long time ago I took my old Tempo S2 HT with me to Santiago Peak (extremely high-RF site); it was the only radio I could hear anything off-site on. Now if you're talking about a site where you can measure RF coming DOWN your feedline with a wattmeter, then yes of course anything without helical resonators is going to get clobbered. >Nothing like a multi-kw FM Station or two, or >three or five nearby to let you know how good >a project builder you are. Some sites around here that have multiple FM broadcast TXs also have in-band noise on 2 meters. Can't filter that out with anything. >Once in a while you can get lucky using the >Midland & Clegg Radio Receivers at a more >quiet site. I wouldn't call my downtown LA site "quiet". Not much on-site (2 UHF TXs), but there's a building about 1000 ft. away lined with omni sticks. I'm told the bulk of them are for paging TXs. 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: midland 13-509 220mhz to convert to repeater
I had an FM76 convered to a 220Mhz repeater and used a GLB preselector in front of the receiver. It helped a lot. Unfortunately, the GLB is no longer available. 73, Joe,K1ike skipp025 <[EMAIL PROTECTED]> wrote: > Hi Bob, > > The Midland & Clegg receivers would be stomped > on like a "narc at a biker rally"... at most > of the major high level sites where the noise > floor is mostly a disaster and the rf is intense. > > Nothing like a multi-kw FM Station or two, or > three or five nearby to let you know how good > a project builder you are. > > Once in a while you can get lucky using the > Midland & Clegg Radio Receivers at a more > quiet site. > > cheers, > skipp > > > > Bob Dengler <[EMAIL PROTECTED]> wrote: > > At 7/29/2005 08:58 AM, you wrote: > > >Although the Clegg and Midland 13-509 radio mod to > > >repeater convertion works ok, the receiver is fairly > > >marginal for most busy repeater applications. You'd > > >do much better to buy a receiver designed for actual > > >repeater operation. > > > > I have to disagree. I maintain 2 220 MHz systems in SoCal: one > > is on top of a downtown LA highrise. Only thing between the > > RX & antenna is a notch duplexer. No desense or IMD. The > > other is about 10 miles north at a minor comm. site & does > > have a pass cavity in front of a GaAsFET preamp. No IMD > > there either, although the RX is a bit more sensitive of course. > > Both systems have been in service for over 25 years; only > > failure I know of between the two is that one RX had a cold > > solder joint on the 2nd LO xtal. > > Bob NO6B > > > > > > > > Yahoo! Groups Links > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: midland 13-509 220mhz to convert to repeater
Hi Bob, The Midland & Clegg receivers would be stomped on like a "narc at a biker rally"... at most of the major high level sites where the noise floor is mostly a disaster and the rf is intense. Nothing like a multi-kw FM Station or two, or three or five nearby to let you know how good a project builder you are. Once in a while you can get lucky using the Midland & Clegg Radio Receivers at a more quiet site. cheers, skipp > Bob Dengler <[EMAIL PROTECTED]> wrote: > At 7/29/2005 08:58 AM, you wrote: > >Although the Clegg and Midland 13-509 radio mod to > >repeater convertion works ok, the receiver is fairly > >marginal for most busy repeater applications. You'd > >do much better to buy a receiver designed for actual > >repeater operation. > > I have to disagree. I maintain 2 220 MHz systems in SoCal: one > is on top of a downtown LA highrise. Only thing between the > RX & antenna is a notch duplexer. No desense or IMD. The > other is about 10 miles north at a minor comm. site & does > have a pass cavity in front of a GaAsFET preamp. No IMD > there either, although the RX is a bit more sensitive of course. > Both systems have been in service for over 25 years; only > failure I know of between the two is that one RX had a cold > solder joint on the 2nd LO xtal. > 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: midland 13-509 220mhz to convert to repeater
At 7/29/2005 08:58 AM, you wrote: >Although the Clegg and Midland 13-509 radio mod to >repeater convertion works ok, the receiver is fairly >marginal for most busy repeater applications. You'd >do much better to buy a receiver designed for actual >repeater operation. I have to disagree. I maintain 2 220 MHz systems in SoCal: one is on top of a downtown LA highrise. Only thing between the RX & antenna is a notch duplexer. No desense or IMD. The other is about 10 miles north at a minor comm. site & does have a pass cavity in front of a GaAsFET preamp. No IMD there either, although the RX is a bit more sensitive of course. Both systems have been in service for over 25 years; only failure I know of between the two is that one RX had a cold solder joint on the 2nd LO xtal. 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: midland 13-509 220mhz to convert to repeater
k3phl wrote: > I opted to split a Midland 13-513. The PA runs 20-30 watts, is > synthesized, and has a much better receiver than the drifty and > rather deaf 509. The operating manual also has a full schematic as > well as the point to point wiring between the individual boards. It > even includes receiver and transmitter alignment instructions. > Although I did not document the procedure to split, it works very > well as a primary or backup repeater. > > For those not familiar with the radio, there is currently one on Ebay > if you search for keyword "Midland 220" > > Regards, > > Steve > K3PHL > http://mywebpages.comcast.net/k3phl How did you split the synthesizer? -- 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] Re: midland 13-509 220mhz to convert to repeater
I built one up and while it worked OK with an external preamp, the crystal drift over temp was always a problem even with a wide temp range crystal and to keep the heat in check, I reduced the power to 10 watts. It worked about 95% with the problem above on dead cold and over 105 temp days. Mel K6KBEk3phl <[EMAIL PROTECTED]> wrote: I opted to split a Midland 13-513. The PA runs 20-30 watts, is synthesized, and has a much better receiver than the drifty and rather deaf 509. The operating manual also has a full schematic as well as the point to point wiring between the individual boards. It even includes receiver and transmitter alignment instructions. Although I did not document the procedure to split, it works very well as a primary or backup repeater.For those not familiar with the radio, there is currently one on Ebay if you search for keyword "Midland 220"Regards,SteveK3PHLhttp://mywebpages.comcast.net/k3phl--- In Repeater-Builder@yahoogroups.com, "w8qpo" <[EMAIL PROTECTED]>wrote:> hello,> anybody have details of converting midland 13-509 220mhz radio to > repeater? I would like to split rec and tx.> thanks brad w8qpoYahoo! 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/ Start your day with Yahoo! - make it your home page 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: midland 13-509 220mhz to convert to repeater
I opted to split a Midland 13-513. The PA runs 20-30 watts, is synthesized, and has a much better receiver than the drifty and rather deaf 509. The operating manual also has a full schematic as well as the point to point wiring between the individual boards. It even includes receiver and transmitter alignment instructions. Although I did not document the procedure to split, it works very well as a primary or backup repeater. For those not familiar with the radio, there is currently one on Ebay if you search for keyword "Midland 220" Regards, Steve K3PHL http://mywebpages.comcast.net/k3phl --- In Repeater-Builder@yahoogroups.com, "w8qpo" <[EMAIL PROTECTED]> wrote: > hello, > anybody have details of converting midland 13-509 220mhz radio to > repeater? I would like to split rec and tx. > thanks brad w8qpo 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: midland 13-509 220mhz to convert to repeater
--- DCFluX <[EMAIL PROTECTED]> wrote: > Anyone have any experience with the TX-220 by VHF > Engineering? I am > debateing building it or just sticking with the > FM-76 > > I know of a couple of the VHF Engineering repeaters that have been on the air for many years. Not too sure how they would be at a location where the receiver was in a high RF enviroment as the ones I know of were not too close to other sources of RF. The transmitter will drift if the temperature changes alot. The Midland probably would also in the same enviroment. They will hold up under lots of use. We used Midlands for RTTY (repeaters and at the house) and they seem to run forever. Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs 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: midland 13-509 220mhz to convert to repeater
Anyone have any experience with the TX-220 by VHF Engineering? I am debateing building it or just sticking with the FM-76 On 7/29/05, Richard Velez <[EMAIL PROTECTED]> wrote: > I have a spectrum 220 rec. It worked well in a site by it self. But > once I transferred it to the main site ful of wonderful pager Tx and > other com repeaters in the same site. Forgetaboutit. Regardless of how > much filtering. So we went to a Micor Rec. Problem solved. > Rich/N2ROW > > >>> [EMAIL PROTECTED] 7/29/05 11:58:18 AM >>> > Although the Clegg and Midland 13-509 radio mod to > repeater convertion works ok, the receiver is fairly > marginal for most busy repeater applications. You'd > do much better to buy a receiver designed for actual > repeater operation. > > I like the preformance and output functions of the > Spectrum 220MHz (and 145/440 bands) Receiver, > but they appear to be a "dys-functional business". > > If you could get a receiver from Spectrum without being > taken for a "Mr Toads Wild Ride" (Disney Land theme > park ride), I'd say their equipment is worth at least > looking at. > > I bought and enjoy the operation of a new Maggiore 220 > receiver, which also works pretty well. They also come > high on the list of good 220 MHz receivers. > > cheers, > skipp > > www.radiowrench.com/sonic > > > "Jim B." <[EMAIL PROTECTED]> wrote: > > w8qpo wrote: > > > > > hello, > > > anybody have details of converting midland 13-509 220mhz radio to > > > repeater? I would like to split rec and tx. > > > thanks brad w8qpo > > > > K1IKE posted this here in June: > > > > http://6mt.com/222tech.htm > > > > It looks like everything is there you would need. Remember Clegg and > > > Cobra also marketed the same radio. > > -- > > Jim Barbour > > WD8CHL > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > Confidentiality Notice: > This message may contain information that is > confidential or privileged. > > If you are not the intended recipient, > Please advise the sender immediately and delete this message. > > > > > > > Yahoo! Groups Links > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: midland 13-509 220mhz to convert to repeater
I have a spectrum 220 rec. It worked well in a site by it self. But once I transferred it to the main site ful of wonderful pager Tx and other com repeaters in the same site. Forgetaboutit. Regardless of how much filtering. So we went to a Micor Rec. Problem solved. Rich/N2ROW >>> [EMAIL PROTECTED] 7/29/05 11:58:18 AM >>> Although the Clegg and Midland 13-509 radio mod to repeater convertion works ok, the receiver is fairly marginal for most busy repeater applications. You'd do much better to buy a receiver designed for actual repeater operation. I like the preformance and output functions of the Spectrum 220MHz (and 145/440 bands) Receiver, but they appear to be a "dys-functional business". If you could get a receiver from Spectrum without being taken for a "Mr Toads Wild Ride" (Disney Land theme park ride), I'd say their equipment is worth at least looking at. I bought and enjoy the operation of a new Maggiore 220 receiver, which also works pretty well. They also come high on the list of good 220 MHz receivers. cheers, skipp www.radiowrench.com/sonic > "Jim B." <[EMAIL PROTECTED]> wrote: > w8qpo wrote: > > > hello, > > anybody have details of converting midland 13-509 220mhz radio to > > repeater? I would like to split rec and tx. > > thanks brad w8qpo > > K1IKE posted this here in June: > > http://6mt.com/222tech.htm > > It looks like everything is there you would need. Remember Clegg and > Cobra also marketed the same radio. > -- > Jim Barbour > WD8CHL Yahoo! Groups Links Confidentiality Notice: This message may contain information that is confidential or privileged. If you are not the intended recipient, Please advise the sender immediately and delete this message. 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: midland 13-509 220mhz to convert to repeater
Although the Clegg and Midland 13-509 radio mod to repeater convertion works ok, the receiver is fairly marginal for most busy repeater applications. You'd do much better to buy a receiver designed for actual repeater operation. I like the preformance and output functions of the Spectrum 220MHz (and 145/440 bands) Receiver, but they appear to be a "dys-functional business". If you could get a receiver from Spectrum without being taken for a "Mr Toads Wild Ride" (Disney Land theme park ride), I'd say their equipment is worth at least looking at. I bought and enjoy the operation of a new Maggiore 220 receiver, which also works pretty well. They also come high on the list of good 220 MHz receivers. cheers, skipp www.radiowrench.com/sonic > "Jim B." <[EMAIL PROTECTED]> wrote: > w8qpo wrote: > > > hello, > > anybody have details of converting midland 13-509 220mhz radio to > > repeater? I would like to split rec and tx. > > thanks brad w8qpo > > K1IKE posted this here in June: > > http://6mt.com/222tech.htm > > It looks like everything is there you would need. Remember Clegg and > Cobra also marketed the same radio. > -- > 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/
