Re: [Repeater-Builder] Repeater Rx is Better than TX, Why
Your watt meter is lying to you. Your transmitter power is down for some reason Kevin Custer w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). 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] More power, Scotty!
On Mon, 24 Jan 2005, Mathew Quaife wrote: Sounds like a ground issue. Your Astron 35 amp power supply is actually 26 amps normal, 35 amps surge. How much power are you running? Some of the other techs can correct me if I am wrong, but to tie them together you have to use some diodes to prevent one from feeding back into the other. Then positive to positive and negative to negative. It's been several years since I have tied two together, but it seems that is the way we done it. Just tie the grounds together and let the positives remain independent. -- Kris Kirby [EMAIL PROTECTED] BIG BROTHER IS WATCHING YOU! This message brought to you by the US Department of Homeland Security 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] More power, Scotty!
At 11:00 PM 1/24/2005 -, you wrote: While building out my repeater empire, I discovered that an Astron RM- 35 does not like providing 30 amps continuous :) So, I thought I would run the latest repeater on a separate power supply. However, the controller, an Arcom RC-210, would not recognize COS and PTT states of the repeater on a separate power supply. What is the correct procedure to tie these two power supplies together, to either: A. Provide more than 30 amps continuous together, or B. have the ground of the second power supply recognized by the controller, which is running on the first power supply? ---John. One of my repeater uses 2 power supplies - one high current (50amps) that powers the repeater xmtr, receiver, preamp and controller (guess which one I use? g). A 2nd, lower current one (35 amp Astron) powers the link and remote base radios. No problems at all this way.. just make sure you tie the grounds together and you're all set! Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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: Repeater Rx is Better than TX, Why
--- In Repeater-Builder@yahoogroups.com, w9mwq [EMAIL PROTECTED] wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. ... __ If the repeater receive is still fine and the talk out range is reduced - you really have to suspect some transmit issue as Kevin suggested - your Wattmeter is not being truthful -OR - it isn't telling you the entire story. Maybe you have 130 Watts but they are not all on channel RF. Didn't you have an adjacent channel issue recently? Maybe these issues are related? I also hope we don't get into a brand debate - this should be solved on its technical facts, besides we don't want to get Russ going ;-) [I have no personal knowledge of Maggorie equipment - I just kidded Russ about this the other day because cheerleading gets a little old - as does the bashing] I would suggest you get back to a calibrated measument of the on channel power with a spectrum analyzer - if possible one with occupied bandwidth capability. 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] Pinout needed for the Kenwood PG-4H cable (for RBI-1)
I'm trying to find the pinout for the Kenwood to Doug Hall RBI-1 cable. Kenwood no longer makes these cables. 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] Short spacing on vhf repeaters.
Thank, you all for the the help and support - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 4:57 PM Subject: Re: [Repeater-Builder] Short spacing on vhf repeaters. Brent wrote: Has anybody had to ask another repeater owner/trustee for letter of approval for short distance for re-coordination.. In Western Pennsylvania, we use a Waiver form for this. I have been involved with 4 such instances, 2 where I was the asking party, 2 where I was the granting party. In most instances the distances were a few miles from the rule. The form: http://www.wprc.us/forms.htm Maybe your local coordinator has a similar form, or will accept this one if they don't. Kevin Custer Western Pennsylvania Repeater Council RCA and Technical Assistant; 123.0 Hertz Region. Yahoo! Groups Links --- [This E-mail scanned for viruses at TNWEB LLC] -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005 -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005 --- [This E-mail scanned for viruses at TNWEB LLC] 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] Need help on wacom cans
Need help Id'in the following wacom cans, I can not locate any info on the web pertaining to the following the model WP 447L4/547L2 Thanks Brent -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005 --- [This E-mail scanned for viruses at TNWEB LLC] 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: DB224 Loop Lengths for 145.110 Mhz?
When I converted my 224 to VHF amateur band, the element length went from 35 inches (150mhz unit) to 37 inches (144mhz). The spacing on the elements was somewhat limited by the new harness length. Had to work with it a good bit to get somewhat equal spacing on the pole. Had to lengthen the pole some also to get the clams down and away from the elements. I did the double cut on both ends and inserted a smaller tube inside the orginal. Tig Welded them back 100%. Been playing fine for 4 years. --- In Repeater-Builder@yahoogroups.com, kf0m [EMAIL PROTECTED] wrote: If you look back at a post I did a couple of days ago The variable element to element spacing on our DB224E's new from the factory ran anywhere from 62 to 70 inches. If you do some web searches there are several methods that have been used to extend the short elements. These range from cutting the elements and making a trombone slide arrangement, to inserting a screw in the ends, to using long hose clamps and letting tails stick out the right length. We happened to be fortunate enough to have a welder in the club and he welded short stubs of aluminum tubing on the ends of each 35 inch element to extend them out to the 37 inch dimension. John Lock KF0M Wichita KS kf0m at arrl dot net 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] GE Master II history dates
Have had some hams in the club asking about the GE Master II equipment I use for all of our repeaters. Can any one answer the question of what year was the Master II introduced and when was it last produced? thanks, Ralph W4XE 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] Need help on wacom cans
http://www.seits.org/duplexer/duplexer.htm May be of some assist. 73, Doug On 1/25/05 01:19:03, repeater-builder@yahoogroups.com wrote: Need help Id'in the following wacom cans, I can not locate any info on the web pertaining to the following the model WP 447L4/547L2 Thanks Brent -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.2 - Release Date: 1/21/05 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] Need help on wacom cans
447L2 listed here.perhapsthey or WACOM can supply the info you need. Best regards, Doug, GM7SVK http://www.telewave.com/pricelist/Telewave-Wacom-Crossref.txt On 1/25/05 01:19:03, repeater-builder@yahoogroups.com wrote: Need help Id'in the following wacom cans, I can not locate any info on the web pertaining to the following the model WP 447L4/547L2 Thanks Brent -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.2 - Release Date: 1/21/05 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] Pinout needed for the Kenwood PG-4H cable (for RBI-1)
Doug still has them available http://www.dheco.com Simply tell him how many you want. 73 Richard D. Reese http://www.wa8dbw.ifip.com - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 8:13 PM Subject: [Repeater-Builder] Pinout needed for the Kenwood PG-4H cable (for RBI-1) I'm trying to find the pinout for the Kenwood to Doug Hall RBI-1 cable. Kenwood no longer makes these cables. 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] Repeater Rx is Better than TX, Why
I'm wondering the same thing. A spectrum analyzer would tell you more information. You may be putting out that much power, but on several frequencies. You already stated that the PA can get flakey. I'd look there first. Chuck WB2EDV - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 7:10 PM Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why Your watt meter is lying to you. Your transmitter power is down for some reason Kevin Custer w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). 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/
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
Kevin is quite correct. Tis the phasing harness construction that determines downtilt of a corporate feed antenna (or physical tilt of the antenna). Chuck WB2EDV - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 5:46 PM Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? russ wrote: Hey every one, Let us not forget that they change the spacing to get down till on the DB-224. Wrong. The only way to get downtilt on a binary fed exposed dipole array is to either build the phasing harness so the electrical length feeding each element is slightly longer in phase with respect to the one next to it, or mechanically tilt the array if it is a cardiod pattern. Varying spacing between elements has little effect on the vertical beam pattern. There is very little difference in the performance of a dipole array with varying amounts of spacing between the elements. Most manufacturers shoot for about 80 to 90% of a full wavelength between elements, but the spacing is really not that critical. Also, the amount of pipe above the top element is not critical as long as there is enough to maintain the impedance of that element. It could be 2 inches or 2 feet, as long as the match is okay it doesn't matter. The spacing of the element from the mast (reflector) affects impedance greatly. Don't try to mount your Cushcraft AFM-4DA or 44DA on a fiberglass or plastic mast pipe. It won't work Kevin Custer 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: Pinout needed for the Kenwood PG-4H cable (for RBI-1)
I know but I have all of the parts here ready to solder and the radios are built into such a cool rack mount panel. I really want the cables to be an exact length and dressed so nicely. Besides with the correct pinout I could be done in an hour instead of waiting weeks for the shippment. Jeff --- In Repeater-Builder@yahoogroups.com, Richard D. Reese [EMAIL PROTECTED] wrote: Doug still has them available http://www.dheco.com Simply tell him how many you want. 73 Richard D. Reese http://www.wa8dbw.ifip.com - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 8:13 PM Subject: [Repeater-Builder] Pinout needed for the Kenwood PG-4H cable (for RBI-1) I'm trying to find the pinout for the Kenwood to Doug Hall RBI-1 cable. Kenwood no longer makes these cables. 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: Pinout needed for the Kenwood PG-4H cable (for RBI-1)
At 02:31 AM 1/25/2005 -, you wrote: I know but I have all of the parts here ready to solder and the radios are built into such a cool rack mount panel. I really want the cables to be an exact length and dressed so nicely. Besides with the correct pinout I could be done in an hour instead of waiting weeks for the shippment. ---Take a look at the RBI manual and schematic. It has the pins on the RJ45 labeled as to function. Then check the Kenwood manual and the connections should be quite obvious. That's how I did it and it works fine. Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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] GE Master II history dates
Basing on sales we did in or around the beginning and the end of the productions and digging into the memory banks ... Someone may be able to pinpoint closer butthis should be pretty close... 1971 I believe was the first Mastr II mobile production, State of Ohio took delivery of about 1000 in early to mid 1972 for distribution as LEERN Radios. Mobiles were discontinued ~mid 80's , Last production run for mobiles we are aware of were dual band Low band/ VHF High Band combo's for some State Police dept, of which we got 10 for a dept we serviced at the time. I am going to peg that at 1985 Stations made into early 90's depending on model, discontinued in stages. Conventional VHF and UHF were replaced first as early as 1991 and Low Band hung around a little longer until Orion Low Band Stations took over... ~1992-1993 800 EDACS Stations and 900 GeNet 900 stations may have survived up until Ericsson took over in 1992 These were Mastr IIe stations as last production stations After that Mastr III replaced them in most bands for stations and Orion Mobiles replaced the mobiles Doug KB8GVQ At 08:46 PM 1/24/2005, you wrote: Have had some hams in the club asking about the GE Master II equipment I use for all of our repeaters. Can any one answer the question of what year was the Master II introduced and when was it last produced? thanks, Ralph W4XE 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/
RE: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
There is a model folded dipole I saw for 30 megs that had tunable rods at the top of the loops. It had a set screw an could be field adjusted. But then this is lowband and it was more to save weight and make the antenna tunable across more of the band. Kevin King SCSA BSCIS ARS KC6OVD GMRS KAG0378 EIEIO 2722 Acworth Georgia -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 6:46 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? Mike's suggestion is the best method and the one I would choose. I would suspect that this would be the method used by a ham that has no problem drilling a hole in his car to mount a mobile antenna. On the other hand, I'd be willing to bet that the extend the element with a bolt crowd is the same group that uses a mag mount mobile antenna. Just an observation. You may disagree. Chuck WB2EDV - Original Message - From: Mike Morris WA6ILQ [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 12:20 AM Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? At 04:29 PM 1/23/05, you wrote: I have seen the screw in the ends modification and am leaning in that direction. But they need to be well sealed I am sure to prevent corrosion and the associated noise that can be produced. I understand that the element to the support contact needs to be welded also to remove that intermittent connection and the possibility of corrosion causing noise if used in repeater service. Russ N4KOX I've also seen a DB224 that was modified by a ham. He cut the elements just inside the curve and spliced in tubing (that was picked so that the inside diameter just fit the outside diameter of the element) to stretch the element. Four elements times two upper and two lower cuts = 16 new joints. He used hacksaw cuts tubing and stainless steel hose clamps to verify the lengths. After the test was done the antenna was took back down and everything welded. The modified antenna was coupled with a new harness made for 2m and the combination outperformed anything else at that site. Mike WA6ILQ 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/
Re: [Repeater-Builder] Repeater Rx is Better than TX, Why
On Jan 24, 2005, at 18:28, w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. Diamonds are okay antennas when they are new, but they have to be taken down every year or two, disassembled, cleaned and tightened up. Really only a decent antenna if you can get to it conveniently for the annual repair. You will never see this type of failure with the wattmeter or impedance bridge. 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] Repeater Rx is Better than TX, Why
Either your wattmeter is lying, or you have one of two worse problems.. 1) Check your TX with a spectrum analyzer. I'll bet that your on-frequency power is down. A wattmeter reads power on all frequencies - spurs or on frequency. I was bit by that oversight years ago. A 6m 100w TX that used to be clean ended up as a comb generator due to a leak in the roof creating corrosion in the PA deck... The on-channel power was maybe 20w, everything else was trash. It was a miracle that we caught it before someone else figured out where the grunge was coming from. 2) Your diamond antenna may be hosed and giving you a low ERP. Mike WA6ILQ At 03:28 PM 1/24/05, you wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! 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] Repeater Rx is Better than TX, Why
At 07:30 PM 1/24/05, Dave Gingrich [EMAIL PROTECTED] wrote: On Jan 24, 2005, at 18:28, w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. Diamonds are okay antennas when they are new, but they have to be taken down every year or two, disassembled, cleaned and tightened up. Really only a decent antenna if you can get to it conveniently for the annual repair. You will never see this type of failure with the wattmeter or impedance bridge. The article at http://www.repeater-builder.com/antenna/cracking.html may be of interest. While it is not exactly relevant to w9mwq's situation (i.e. it describes duplex noise that shows up as crackling), it does describe a broken fiberglass colinear antenna having elements disconnect and connect thereby changing gain levels. Mike WA6ILQ 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] GE Master II history dates
On Jan 24, 2005, at 20:46, Ralph Hogan wrote: Have had some hams in the club asking about the GE Master II equipment I use for all of our repeaters. Can any one answer the question of what year was the Master II introduced and when was it last produced? I have a fairly late model UHF IIe that I believe was made in 1992. The internal label is Ericisson, but it is in a Tyco/MaCom cabinet. 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] More power, Scotty!
I've done things like this before. (dual power supplies) As long as I tied the negative leads together I never had a problem. -- Original Message -- Received: Mon, 24 Jan 2005 05:09:02 PM CST From: dekk5fm [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] More power, Scotty! I searched through 10,000 posts and did not see this as a topic, so perhaps it is safe to ask? While building out my repeater empire, I discovered that an Astron RM- 35 does not like providing 30 amps continuous :) So, I thought I would run the latest repeater on a separate power supply. However, the controller, an Arcom RC-210, would not recognize COS and PTT states of the repeater on a separate power supply. What is the correct procedure to tie these two power supplies together, to either: A. Provide more than 30 amps continuous together, or B. have the ground of the second power supply recognized by the controller, which is running on the first power supply? The repeaters are 1100 feet up a tower, in a very cramped space, so I thought I would ask here before experimenting. Thank you! 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] bracket size
Hello RB group. I'm mounting a Cellwave PD455-5 Super Stationmaster on a 5 foot face tower at 750 feet. I have a 18 inch, 24 inch and 36 inch standoff to chosefrom. Which one should I use ? Also do I need an upper mast support ? If sowhatis recommended.Thanks ! Jeff Corkren/W5PPB Raymond, Mississippi 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 the Yahoo! Terms of Service.
RE: [Repeater-Builder] Repeater Rx is Better than TX, Why
Well have to rule out the wattmeter, I have two of them, both gave the same results, one being bird wattmeter and the other being Yaesu YS-500. The antenna has only been in-service since September. If it was the antenna, would it not be noticed on the RX as well, which is not having any problems at all. I will put the exciter back on the scope today and look at it, but last I looked it was fine. Someone mentioned my past problem with adjacent channel noise, yes, there was a problem there, the deviation had jumped up to over 6 Khz wide, brought it back down to 4.5 Khz via the controller and that took care of that. Will pump the signal into the service monitor and see what that reads. All I know it seems strange for it to receive twice as far as it does transmit. Mathew -Original Message- From: Mike Morris WA6ILQ [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 3:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why Either your wattmeter is lying, or you have one of two worse problems.. 1) Check your TX with a spectrum analyzer. I'll bet that your on-frequency power is down. A wattmeter reads power on all frequencies - spurs or on frequency. I was bit by that oversight years ago. A 6m 100w TX that used to be clean ended up as a comb generator due to a leak in the roof creating corrosion in the PA deck... The on-channel power was maybe 20w, everything else was trash. It was a miracle that we caught it before someone else figured out where the grunge was coming from. 2) Your diamond antenna may be hosed and giving you a low ERP. Mike WA6ILQ At 03:28 PM 1/24/05, you wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! 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/
RE: [Repeater-Builder] bracket size
If the tower will support the 36 use it. Also putting a support at the top keeps the antenna from getting beat up. Mathew From: Jeff Corkren [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 11:48 PM To: Repeater Builder Subject: [Repeater-Builder] bracket size Hello RB group. I'm mounting a Cellwave PD455-5 Super Stationmaster on a 5 foot face tower at 750 feet. I have a 18 inch, 24 inch and 36 inch standoff to chosefrom. Which one should I use ? Also do I need an upper mast support ? If sowhatis recommended.Thanks ! Jeff Corkren/W5PPB Raymond, Mississippi 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 the Yahoo! Terms of Service.
[Repeater-Builder] Transistor Checking
Just need a short memory replacement here please. I'm working on an Astron 35 amp power supply, hope to get it going again. I'm checking the transistors in the unit, and not sure if I remember correctly. On my vom, in the diode checking position, I should have a dead short from case to one pin, and nothing from case to the other pin, but should there be a reading from pin to pin. These are on the 2N3771 transistors. Thanks. Mathew 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] Transistor Checking
If you have an old ECG catalog,it has an excellent tutorial on how to test semiconductors. w9mwq wrote: Just need a short memory replacement here please. I'm working on an Astron 35 amp power supply, hope to get it going again. I'm checking the transistors in the unit, and not sure if I remember correctly. On my vom, in the diode checking position, I should have a dead short from case to one pin, and nothing from case to the other pin, but should there be a reading from pin to pin. These are on the 2N3771 transistors. Thanks. Mathew 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/
Re: [Repeater-Builder] Repeater Rx is Better than TX, Why
Dave Gingrich wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. But, he doesn't complain that he's having any trouble on his receive side, so how can it be the antenna If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. Kevin Custer 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 the Yahoo! Terms of Service.
Re: [Repeater-Builder] Transistor Checking
w9mwq wrote: Just need a short memory replacement here please. I'm working on an Astron 35 amp power supply, hope to get it going again. I'm checking the transistors in the unit, and not sure if I remember correctly. On my vom, in the diode checking position, I should have a dead short from case to one pin, and nothing from case to the other pin, but should there be a reading from pin to pin. These are on the 2N3771 transistors. Thanks. You should not read a short anywhere. If you do, the transistor is shorted. You should have diode action from pin to pin, and one of the pins to the case; and the other pin to the case shouldn't read either way. Kevin Custer 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] Repeater Rx is Better than TX, Why
You need to check the entire transmitter, not just the exciter. Chuck WB2EDV - Original Message - From: Mathew Quaife [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 2:17 AM Subject: RE: [Repeater-Builder] Repeater Rx is Better than TX, Why Well have to rule out the wattmeter, I have two of them, both gave the same results, one being bird wattmeter and the other being Yaesu YS-500. The antenna has only been in-service since September. If it was the antenna, would it not be noticed on the RX as well, which is not having any problems at all. I will put the exciter back on the scope today and look at it, but last I looked it was fine. Someone mentioned my past problem with adjacent channel noise, yes, there was a problem there, the deviation had jumped up to over 6 Khz wide, brought it back down to 4.5 Khz via the controller and that took care of that. Will pump the signal into the service monitor and see what that reads. All I know it seems strange for it to receive twice as far as it does transmit. Mathew -Original Message- From: Mike Morris WA6ILQ [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 3:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why Either your wattmeter is lying, or you have one of two worse problems.. 1) Check your TX with a spectrum analyzer. I'll bet that your on-frequency power is down. A wattmeter reads power on all frequencies - spurs or on frequency. I was bit by that oversight years ago. A 6m 100w TX that used to be clean ended up as a comb generator due to a leak in the roof creating corrosion in the PA deck... The on-channel power was maybe 20w, everything else was trash. It was a miracle that we caught it before someone else figured out where the grunge was coming from. 2) Your diamond antenna may be hosed and giving you a low ERP. Mike WA6ILQ At 03:28 PM 1/24/05, you wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! Yahoo! Groups Links 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/
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
Correct. Phelps Dodge did this on their VHF low-band antennas only. I'm not saying that drilling a hole at the ends of the loops and adding a bolt to extend them won't work. I'm saying that actually extending the loop is a better choice form a mechanical standpoint. Chuck WB2EDV - Original Message - From: Kevin King [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 10:29 PM Subject: RE: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? There is a model folded dipole I saw for 30 megs that had tunable rods at the top of the loops. It had a set screw an could be field adjusted. But then this is lowband and it was more to save weight and make the antenna tunable across more of the band. Kevin King SCSA BSCIS ARS KC6OVD GMRS KAG0378 EIEIO 2722 Acworth Georgia -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 6:46 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? Mike's suggestion is the best method and the one I would choose. I would suspect that this would be the method used by a ham that has no problem drilling a hole in his car to mount a mobile antenna. On the other hand, I'd be willing to bet that the extend the element with a bolt crowd is the same group that uses a mag mount mobile antenna. Just an observation. You may disagree. Chuck WB2EDV - Original Message - From: Mike Morris WA6ILQ [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 12:20 AM Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? At 04:29 PM 1/23/05, you wrote: I have seen the screw in the ends modification and am leaning in that direction. But they need to be well sealed I am sure to prevent corrosion and the associated noise that can be produced. I understand that the element to the support contact needs to be welded also to remove that intermittent connection and the possibility of corrosion causing noise if used in repeater service. Russ N4KOX I've also seen a DB224 that was modified by a ham. He cut the elements just inside the curve and spliced in tubing (that was picked so that the inside diameter just fit the outside diameter of the element) to stretch the element. Four elements times two upper and two lower cuts = 16 new joints. He used hacksaw cuts tubing and stainless steel hose clamps to verify the lengths. After the test was done the antenna was took back down and everything welded. The modified antenna was coupled with a new harness made for 2m and the combination outperformed anything else at that site. Mike WA6ILQ Yahoo! Groups Links 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/
RE: [Repeater-Builder] Transistor Checking
Ok, that is what I thought, then I was checking them right. But I let the blue stuff out a bit ago. I have to astron power supplies, one pops the fuse then I turn it on, the turns on, but no voltage out. Took the 723A chip out of the one and put it in the other and blue smoke rolled. Killed a resistor. The one that powers up does charge the caps, I assume the 723A is bad, but wonder if something else may be bad before it. The resistor that died is connected to a transitor on the case. Mathew -Original Message- From: Kevin Custer [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 3:26 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Transistor Checking w9mwq wrote: Just need a short memory replacement here please. I'm working on an Astron 35 amp power supply, hope to get it going again. I'm checking the transistors in the unit, and not sure if I remember correctly. On my vom, in the diode checking position, I should have a dead short from case to one pin, and nothing from case to the other pin, but should there be a reading from pin to pin. These are on the 2N3771 transistors. Thanks. You should not read a short anywhere. If you do, the transistor is shorted. You should have diode action from pin to pin, and one of the pins to the case; and the other pin to the case shouldn't read either way. Kevin Custer 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/
Re: [Repeater-Builder] Repeater Rx is Better than TX, Why
I would have said bad antenna as well except that it appears to be receiving quite nicely. However, that would be suspect #2 after a dirty transmitter is ruled out. Chuck WB2EDV - Original Message - From: Dave Gingrich [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 10:30 PM Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why On Jan 24, 2005, at 18:28, w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. Diamonds are okay antennas when they are new, but they have to be taken down every year or two, disassembled, cleaned and tightened up. Really only a decent antenna if you can get to it conveniently for the annual repair. You will never see this type of failure with the wattmeter or impedance bridge. 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] Repeater Rx is Better than TX, Why
Ok, well if I set me service monitor up on the transmitter, put my selectivity to 20dBm, and the display to 10Db, what should I be looking for on the spectrum analyzer. I'm getting the manual out now to see if it gives instructions on transmitter testing. Mathew -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 3:41 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why You need to check the entire transmitter, not just the exciter. Chuck WB2EDV - Original Message - From: Mathew Quaife [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 2:17 AM Subject: RE: [Repeater-Builder] Repeater Rx is Better than TX, Why Well have to rule out the wattmeter, I have two of them, both gave the same results, one being bird wattmeter and the other being Yaesu YS-500. The antenna has only been in-service since September. If it was the antenna, would it not be noticed on the RX as well, which is not having any problems at all. I will put the exciter back on the scope today and look at it, but last I looked it was fine. Someone mentioned my past problem with adjacent channel noise, yes, there was a problem there, the deviation had jumped up to over 6 Khz wide, brought it back down to 4.5 Khz via the controller and that took care of that. Will pump the signal into the service monitor and see what that reads. All I know it seems strange for it to receive twice as far as it does transmit. Mathew -Original Message- From: Mike Morris WA6ILQ [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 3:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why Either your wattmeter is lying, or you have one of two worse problems.. 1) Check your TX with a spectrum analyzer. I'll bet that your on-frequency power is down. A wattmeter reads power on all frequencies - spurs or on frequency. I was bit by that oversight years ago. A 6m 100w TX that used to be clean ended up as a comb generator due to a leak in the roof creating corrosion in the PA deck... The on-channel power was maybe 20w, everything else was trash. It was a miracle that we caught it before someone else figured out where the grunge was coming from. 2) Your diamond antenna may be hosed and giving you a low ERP. Mike WA6ILQ At 03:28 PM 1/24/05, you wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! Yahoo! Groups Links Yahoo! Groups Links 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/
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
True but when you change the harness to get down tilt (PER DB) you also change the spacing. (Also per DB) . It is also just cheaper to buy a new DB-224 for the two meter Ham band. You get a new antenna and it will work for many years. Lord knows they are cheaper then grits. 73 Russ, - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 5:46 PM Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? russ wrote: Hey every one, Let us not forget that they change the spacing to get down till on the DB-224. Wrong. The only way to get downtilt on a binary fed exposed dipole array is to either build the phasing harness so the electrical length feeding each element is slightly longer in phase with respect to the one next to it, or mechanically tilt the array if it is a cardiod pattern. Varying spacing between elements has little effect on the vertical beam pattern. There is very little difference in the performance of a dipole array with varying amounts of spacing between the elements. Most manufacturers shoot for about 80 to 90% of a full wavelength between elements, but the spacing is really not that critical. Also, the amount of pipe above the top element is not critical as long as there is enough to maintain the impedance of that element. It could be 2 inches or 2 feet, as long as the match is okay it doesn't matter. The spacing of the element from the mast (reflector) affects impedance greatly. Don't try to mount your Cushcraft AFM-4DA or 44DA on a fiberglass or plastic mast pipe. It won't work Kevin Custer 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/
Re: [Repeater-Builder] Need help on wacom cans
Wacom was 100% bought by TX/RX in NY. They do have most of the info on the older Wacom duplexers. - Original Message - From: Doug [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 24, 2005 8:39 PM Subject: Re: [Repeater-Builder] Need help on wacom cans 447L2 listed here.perhapsthey or WACOM can supply the info you need. Best regards, Doug, GM7SVK http://www.telewave.com/pricelist/Telewave-Wacom-Crossref.txt On 1/25/05 01:19:03, repeater-builder@yahoogroups.com wrote: Need help Id'in the following wacom cans, I can not locate any info on the web pertaining to the following the model WP 447L4/547L2 Thanks Brent -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.2 - Release Date: 1/21/05 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/
Re: [Repeater-Builder] Need help on wacom cans
All true, You can contact TX/RX Phone: 716-549-4700 There address is 8625 Industrial Parkway Angola, NY. 14006 We find that Mary Brown at TX/RX is most helpful to Hams in matters like this. Dean, 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 the Yahoo! Terms of Service.
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
This is also why you get different spacing on the dipoles. It also depends what year in time your harness was made. Over the years they changed coax with new owners (of DB) and that also has a spacing change. Be careful. If you are and do it right you will not have to buy a new DB-224. If not you can go nuts chasseing your tail. Dean Westbrook, EE,PE. Cook Towers, INC. 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 the Yahoo! Terms of Service.
[Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
Hi all I've followed this thread with great interest seeing that our club just purchased a DB224E to replace an aged stationmaster. Question...We ordered the 138-150 mHz model, Tessco part # 62446. There was nothing in the paperwork referencing element spacing or anything else along those lines. Just info about pattern adjustment. I told the Tessco rep our frequency, 146.730, and he said there is nothing to tune or do to the antenna...just set it and forget it. I do realize that some of the comments during this discussion have been related to other models of the DB224, however, I fell compelled to ask if there is anything we should do to our antenna prior to installing it (will be checking all the bolts and nuts of course). Does the other thread that discussed the element spacing apply to my model? Thanks a bunch in advance Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 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] bracket size
There are questions that need to be answered! Are you using the tower for a reflector? The rule of thumb is to be at least 1 wave length off the face of the tower at the transmit frequency some times more. We need to know what you want for a pattern? Omni get your DB-455 away from the tower. Placement on the face as well will makes a differents. We need more input as to what you want to do. Just hanging an antenna on a tower is not enough. Plus there is always tower loading. IE antenna, feed line, grounds, clamp, bracket and so on. I can reply to one of your questions. That being YES you will need a top bracket on a 455. If you would like you can call my office and we can chat on what you are trying to do. (877-992-2665) Just ask for Dean. Dean Westbrook, EE,PE. Cook towers, INC. 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 the Yahoo! Terms of Service.
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
Well we all deal with Tessco but when you deal with the large box house you get NO consumer service. And no tech support. Yes you could have ordered your 224 from Tessco tuned for your transmit but you would have had to wait for it. Good luck! Dean, 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 the Yahoo! Terms of Service.
[Repeater-Builder] Re: Repeater Rx is Better than TX, Why
--- In Repeater-Builder@yahoogroups.com, Kevin Custer [EMAIL PROTECTED] wrote: Dave Gingrich wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. But, he doesn't complain that he's having any trouble on his receive side, so how can it be the antenna If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. Kevin Custer May be the power out on the transmitter side is failing. 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: Repeater Rx is Better than TX, Why
Actually, I'm thinking it may have been nothing at all, other than plain old band conditions. Same user went 50 miles from the repeater, and it worked the way it was suppose to. His xmit into the repeater was normal, but his rx of the repeater was back where is was suppose to be. I've done nothing at all to the system. Will have to watch if over the next few days and see. Mathew -Original Message- From: kf4vgx [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 6:44 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Repeater Rx is Better than TX, Why --- In Repeater-Builder@yahoogroups.com, Kevin Custer [EMAIL PROTECTED] wrote: Dave Gingrich wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. I would vote for a failure of the Diamond antenna. I would bet one or more sets of the set screws holding the elements together have come loose. When this happens, the antenna will still present a perfect 50 ohm load, but perform poorly. But, he doesn't complain that he's having any trouble on his receive side, so how can it be the antenna If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. Kevin Custer May be the power out on the transmitter side is failing. 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/
RE: [Repeater-Builder] Re: Repeater Rx is Better than TX, Why
If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. We tried a TRAM dual band antenna, looks just like the diamond type of setup, on UHF repeater. It worked well, we did some benchmark testing, etc. First serious ice storm we had on the hill the radome took on about 2 of ice, as did the radials. The receive sensitivity went WAY down in the dirt, noisey and not usable from just a few miles away. A trip to the hill checked out everything inside, 80 watts out to the antenna with no SWR, nothing seemed to change at all in the transmit coverage. The receiver was fine, duplexer was fine, etc. I climbed the icy tower, knocked all the ice off the radome and radials and the receive sensitivity came back. We can notice the decrease in sensitivity with as little as 1 of ice hanging on the radome...but transmit does just fine no matter what. Whatever it does, apparently it does not affect transmit and receive the same. Good Luck! Daron N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Repeater Rx is Better than TX, Why
This very well could have been it as well, never checked the antenna, it had snowed here, yesterday was nearly up to 32 degrees, might have melted some ice off the antenna. Whatever it was, it's back to normal this morning. Mathew -Original Message- From: Daron J. Wilson [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 6:55 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Repeater Rx is Better than TX, Why If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. We tried a TRAM dual band antenna, looks just like the diamond type of setup, on UHF repeater. It worked well, we did some benchmark testing, etc. First serious ice storm we had on the hill the radome took on about 2 of ice, as did the radials. The receive sensitivity went WAY down in the dirt, noisey and not usable from just a few miles away. A trip to the hill checked out everything inside, 80 watts out to the antenna with no SWR, nothing seemed to change at all in the transmit coverage. The receiver was fine, duplexer was fine, etc. I climbed the icy tower, knocked all the ice off the radome and radials and the receive sensitivity came back. We can notice the decrease in sensitivity with as little as 1 of ice hanging on the radome...but transmit does just fine no matter what. Whatever it does, apparently it does not affect transmit and receive the same. Good Luck! Daron N7HQR 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/
Re: [Repeater-Builder] Repeater Rx is Better than TX, Why
w9mwq wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! I more suspect either the Maggiore exciter or the Vocom amp are going somewhat spurious and not all of that power is on freq. -- 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: Repeater Rx is Better than TX, Why
On Jan 25, 2005, at 9:59, Mathew Quaife wrote: This very well could have been it as well, never checked the antenna, it had snowed here, yesterday was nearly up to 32 degrees, might have melted some ice off the antenna. Whatever it was, it's back to normal this morning. OR... perhaps ice/snow/road-salt on the MOBILE antenna :) 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: DB224 Loop Lengths for 145.110 Mhz?
I agree, I took and antenna up and down a temporary tower many of times before placing in on an 85' tower for permanent installation. Helps to have a hazer on a tower to work with. Makes it nice. Mathew -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 9:01 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? The thread concerns taking an out of band antenna down to the ham portion of the band - necessitating a new harness and different spacing. If yours is for the correct range, it's ready to inspect and put up. Never hurts to go over everything before taking it up in the air. Chuck WB2EDV - Original Message - From: rtoplus [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 8:55 AM Subject: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? Hi all I've followed this thread with great interest seeing that our club just purchased a DB224E to replace an aged stationmaster. Question...We ordered the 138-150 mHz model, Tessco part # 62446. There was nothing in the paperwork referencing element spacing or anything else along those lines. Just info about pattern adjustment. I told the Tessco rep our frequency, 146.730, and he said there is nothing to tune or do to the antenna...just set it and forget it. I do realize that some of the comments during this discussion have been related to other models of the DB224, however, I fell compelled to ask if there is anything we should do to our antenna prior to installing it (will be checking all the bolts and nuts of course). Does the other thread that discussed the element spacing apply to my model? Thanks a bunch in advance Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 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/
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
The thread concerns taking an out of band antenna down to the ham portion of the band - necessitating a new harness and different spacing. If yours is for the correct range, it's ready to inspect and put up. Never hurts to go over everything before taking it up in the air. Chuck WB2EDV - Original Message - From: rtoplus [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 8:55 AM Subject: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz? Hi all I've followed this thread with great interest seeing that our club just purchased a DB224E to replace an aged stationmaster. Question...We ordered the 138-150 mHz model, Tessco part # 62446. There was nothing in the paperwork referencing element spacing or anything else along those lines. Just info about pattern adjustment. I told the Tessco rep our frequency, 146.730, and he said there is nothing to tune or do to the antenna...just set it and forget it. I do realize that some of the comments during this discussion have been related to other models of the DB224, however, I fell compelled to ask if there is anything we should do to our antenna prior to installing it (will be checking all the bolts and nuts of course). Does the other thread that discussed the element spacing apply to my model? Thanks a bunch in advance Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 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] IFR 1600S service monitors fs
Just want to pass along for those looking for a nice service monitor, TekNet has several IFR 1600S that were just taken out of service from a cellular phone manufacturer. These units do full cross band duplex, spectrum analyzer/tracking generator and built in scope/DMM/SINAD. These apparently were inside all their life and not dragged all over God's creation. I just got mine last night and looks almost new. I paid $2,900 + 60 shipping (encased in foam). They bench checked the unit, 90 day warrantee, and even put protectors on the BNC/N connectors. Full manual on CDROM supplied. Not a bad deal if you can convince the XYL this is the greatest thing since sliced bread (but it will probably cost you quite a few extra evenings on the town, nice birthday presents, etc. :-) Contact Mike below if interested (I'm just a satisfied customer). John/N4SJW Mike Alfred TekNet Electronics, Inc. 3135 Reps Miller Road Norcross, GA 30071 (847) 875-4938 Mobile (770) 446-7271 Office (770) 449-5859 Fax [EMAIL PROTECTED] www.teknetelectronics.com 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] Repeater Rx is Better than TX, Why
First of all, there are other people on this list that are more qualified than I am regarding the use of a spectrum analyzer. That said, you are looking to see only one large spike come up on your frequency when you turn the transmitter on. If you see a whole bunch of spikes (more than one, I suppose, could be several) come up at the same time, you've got a problem with either the exciter of the PA. Chuck WB2EDV - Original Message - From: Mathew Quaife [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 6:58 AM Subject: RE: [Repeater-Builder] Repeater Rx is Better than TX, Why Ok, well if I set me service monitor up on the transmitter, put my selectivity to 20dBm, and the display to 10Db, what should I be looking for on the spectrum analyzer. I'm getting the manual out now to see if it gives instructions on transmitter testing. Mathew -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 25, 2005 3:41 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why You need to check the entire transmitter, not just the exciter. Chuck WB2EDV - Original Message - From: Mathew Quaife [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 25, 2005 2:17 AM Subject: RE: [Repeater-Builder] Repeater Rx is Better than TX, Why Well have to rule out the wattmeter, I have two of them, both gave the same results, one being bird wattmeter and the other being Yaesu YS-500. The antenna has only been in-service since September. If it was the antenna, would it not be noticed on the RX as well, which is not having any problems at all. I will put the exciter back on the scope today and look at it, but last I looked it was fine. Someone mentioned my past problem with adjacent channel noise, yes, there was a problem there, the deviation had jumped up to over 6 Khz wide, brought it back down to 4.5 Khz via the controller and that took care of that. Will pump the signal into the service monitor and see what that reads. All I know it seems strange for it to receive twice as far as it does transmit. Mathew -Original Message- From: Mike Morris WA6ILQ [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 3:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater Rx is Better than TX, Why Either your wattmeter is lying, or you have one of two worse problems.. 1) Check your TX with a spectrum analyzer. I'll bet that your on-frequency power is down. A wattmeter reads power on all frequencies - spurs or on frequency. I was bit by that oversight years ago. A 6m 100w TX that used to be clean ended up as a comb generator due to a leak in the roof creating corrosion in the PA deck... The on-channel power was maybe 20w, everything else was trash. It was a miracle that we caught it before someone else figured out where the grunge was coming from. 2) Your diamond antenna may be hosed and giving you a low ERP. Mike WA6ILQ At 03:28 PM 1/24/05, you wrote: Ok, I know this sounds silly, but my repeater is now hearing better than it transmits. Here's the setup, the the issue. I have a Maggorie (no comments) HiPro transmiitter running 2 watts into a Vocom Amp running 160 Watts into the duplexer, 130 out to the antenna, fed with 7/8 hardline into a Diamond Dual Band Antenna at 92'. VSWR is 1.1:1, with 130 watts forward and 1/10 watt reflected at an impedance of 52 ohms, (MJF 259). The receiver is a GE Mastr Pro ER-41 series receiver, tied to an ARR preamp at 24 db going through a two of the DB 4001-1 for filtering and finally into a set of TX-RX Duplexers, 3 cans pers side. I used to be able to hear the repeater nearly full scale for about 40 miles with no problem. Recently at 20 miles away, it's barely at 1/4 scale on my radio. This has been noticable with several users on the system, and my mobile just got a new antenna, all set and tested fine there, and other repeaters there is no problem. I can hear users nearly 60 miles from the repeater, but they can't hear the system. Is it possible something could be wrong on the duplexer end of it. I get no decense on the system, and receive audio is ok quality at 60 miles, just less than full quieting. Any thoughts. Mybe just propagation. And the 160 watts from the Vocom amp was as low as I could go before I began to cause havick, so it does not like lower power. Mathew Thanks! Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links 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:
Re: [Repeater-Builder] Re: DB224 Loop Lengths for 145.110 Mhz?
At 05:55 AM 1/25/05, you wrote: Hi all I've followed this thread with great interest seeing that our club just purchased a DB224E to replace an aged stationmaster. Question...We ordered the 138-150 mHz model, Tessco part # 62446. Tessco is a out of sight, out of mind organization. They do not know what the phrase after-sale customer service means. There was nothing in the paperwork referencing element spacing or anything else along those lines. Yup. They pulled a box off the shelf and shipped it. Contact the factory and ask for a mounting diagram / spacing chart. Just info about pattern adjustment. Please go to this web page: http://www.repeater-builder.com/rbtip/ant-sys-index.html Then scroll down to Antennas then DB and if you have anything that isn't there already I'd like to get a copy. I told the Tessco rep our frequency, 146.730, and he said there is nothing to tune or do to the antenna...just set it It's the set it that is the critical part here. and forget it. That's true. I do realize that some of the comments during this discussion have been related to other models of the DB224, Yup. The person who started the thread is converting a commercial range antenna down to the ham band. He's going to need to stretch the elements and get a new harness, and at that point he'll have what you have. however, I fell compelled to ask if there is anything we should do to our antenna prior to installing it (will be checking all the bolts and nuts of course). Buy a tube of Locktite and use it liberally after the nuts and bolts are tight. Does the other thread that discussed the element spacing apply to my model? Yep. Get a factory spacing chart and use it. Are you going to side mount it or top mount it? If on the side, then the distance to the tower is very important as it will control your pattern. And if you side mount it and you have ANY appreciable wind or ice then GET A TOP BRACE MADE FOR THE JOB and use it. Thanks a bunch in advance Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 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: IFR 1600S service monitors fs
--- In Repeater-Builder@yahoogroups.com, johnmichaelwelton [EMAIL PROTECTED] wrote: Just want to pass along for those looking for a nice service monitor, TekNet has several IFR 1600S ... _ I can recommend them as well. I bought an Anritsu instrument from Teknet a while back. It was in good condition and they seem like swell folks to deal with. That IFR1600 is a steal at that price - enjoy your new toy! 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] Off Topic: Looking for a job?
As many of you know, I've been looking for permanent employment for a while (10+ years in computer networks integration / administration / support). I received this in email from a friend and I don't think I'll be applying... The $35 per day per diem raises the salary to over $4300/mo or $52,000/yr... If I was single and in my twenties... it'd be tempting... No taxes makes the resident equivalent to over $62k per year (assuming 20% taxes, most folks pay more). Date: Tue, 25 Jan 2005 05:39:36 -0800 Looking for a new job? This was being posted on other 911 related groups. AREA SUPPORT GROUP-KUWAIT EMERGENCY SERVICES DISPATCHER CSA Ltd., A Department of Defense Contract in Kuwait currently has the following position open. For more information on CSA Ltd. visit http://www.csakuwait.com/ POSITION TITLE: Emergency Services Dispatcher DEPARTMENT/BRANCH: Fire and Emergency Services/Operations LOCATION: Camp Arifjan, Kuwait SALARY: Approximately $44,000.00 (TAX FREE) $35.00 a day Foreign Area Living Allowance (TAX FREE) OTHER BENEFITS: Free housing, use of car pool vehicles, 4 weeks vacation, Free flight to Germany after 6 Months. CSA Ltd. will pay for your flight to Kuwait. CSA Ltd. will provide you with a free flight to your home of record after the completion of 1 year contract. Dispatchers work an average of 8 hours of over time each week with additional over time available from time to time. Experience the Middle East culture. Protect Those Who Defend America. JOB SUMMARY: The Emergency Services Dispatcher manages requests for services, makes independent decisions and conveys information regarding the dispatch of emergency services to the scene of an emergency. Prioritizes, initiates and coordinates the response of public safety agencies; manages the flow of incident related information to and from field units and/or public safety resources; monitors status of field units and assigns additional resources as requested and/or required. Acquires information from citizens and other entities requesting public safety services or assistance. Establishes verbal communications with a service requester, extracts pertinent information, and analyzes information provided by a service requester. Assess incomplete, conflicting or inconclusive information or data, evaluate, categorize and prioritize service request and convey instructions, information and direction to the service requester. Monitor status of resources and determine units for deployment; initiate deployment of response units. Evaluate incident information so that an appropriate response is determined and resources allocation can be prepared. Maintain location and status of units so that the current availability, status and safety of all deployable resources are known. Operates computerized digital fire alarm receiving equipment and two-way radio communications equipment. Monitor public safety radio systems, electronic data systems and alarm systems. Analyze, classify and summarize data for dispatch or referral. EDUCATION/EXPERIENCE: Requires certification or formal training in emergency services telecommunications with the ability to obtain Department of Defense certification. Requires two years if full time experience in an organized emergency services communications department, call taking and dispatching police, fire and EMS. Ability to analyze, classify and summarize data and information for dispatch. Individual must be familiar with the use of computers used in the process of dispatcher emergency services. Mental alertness, conscientious, dependable, team player and ability to work alone and with others required. Position requires excellent communications skills in English, both verbal and written. Individual must be able to handle multiple dissimilar functions. To apply please file out an application at http://www.csakuwait.com/ in the CSA Careers tab and send a cover letter and resume' to Chief Steven McDonnell at [EMAIL PROTECTED] For more information or general inquiries contact Dispatcher Jeremie Meyer at [EMAIL PROTECTED] (the email addresses in it are mangled as typically Yahoo does... sorry but that's the way I got it...) Mike WA6ILQ 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: DB224 Loop Lengths for 145.110 Mhz?
Thanks all for the infowipes nervous perspiration drops off brow I thought it would be fine, but I wanted to make sure. We will be side mounting the antenna so I will be ordering the DB5001 mounting kit. 73 Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 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: GE Master II history dates
I can't comment on when the production of MII stopped but it started in 1969. I think it was the fall. It was along time ago and other than the Micor there don't seem to be any other radios as good. 73 Ed K3SWJ 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/
