[Repeater-Builder] DB224 Antennas
Message 4 From: Chappy [EMAIL PROTECTED] Date: Thu Apr 6, 2006 9:07pm(PDT) Subject: DB-224 versions We plan to buy a new DB-224 antenna for 146.34/94. We notice the popular model covers 150-160 MHz. Also available is a model covering 138-150 MHz, for about $50 more. I've heard many times that the 150-160 model covers 2 meters just fine. In fact we have a DB-264 with 150-160 MHz specs and it seems OK. Is it worth it to look for the 138-150 MHz version ? Thanks -- kd4ss We have had both versions 224b and BD224 E (If I remember the variations correctly) Thw first one we bought at a hamfest, it was cut for 150 to 170 Mhz, we had a SWR of about 1.8:1 after we modified it for 145.49 by adding 1 5/8 inches to each loop. It worked well for about 4 or 5 years, then we started having a few problems with noise. We finally bit the bullet and bought a new one from Primus (no I don't work for them etc). They give ham clubs a discount which amounts to to the wholesale price charged dealers. Our new antenna is 1.:1 on 145.490 and the coverage has increased about 10 or 20 miles. Apparently we had some downtilt that we no longer have. I would recommend buying a DB224 cut for the ham bands first, save yourself trouble. Bill WA9BA 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] DB222
I modified a DB224 about 6 years ago from 15x.xxx to our repeater pair of 144.890 / 145.490. I added 1 5/8 inches of tubing to each loop. Noting was done to the harness and it worked pretty well for 5 years. Last fall, we were getting noise and it was decided the club would buy a new DB224 to see if that would end some problems. It did, I think some crud built up between the tubing I added and the original loops. A little cleaning and some grease and I'll bet tit would be good for another 5 years. On a side note, the new DB224 was cut for the ham bands and the mast is about 3 feet longer and each loop about 4 inches longer that the old ones, even after lengthening them. I would add another 2 inches and use an analyser to see what happened, you could always cut them shorter, but you know--- they won't strech! Bill WA9BA Message: 3 Date: Wed, 22 Mar 2006 19:18:37 -0600 From: Jay Urish [EMAIL PROTECTED] Subject: Re: DB222 Antenna I saw a paper somewhere that described a mod using a long machine screw through the bottom of each element.. bzlljr wrote: Has anyone modified an DB222 Antenna from 156mhz down to 146mhz? the matching cables are 35ohn(RG83?)The distance would have to be changed between the two elements probably the 35ohm cable may have to be longer. May not be practical. Has anyone done it? Wesley AB8KD 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 simple CW IDer
I have a couple NHRC controllers around here somewhere but I just want a cheap simple IDer. I ordered one from ebay and one of the $10 from a previous link. These could also be for a IDer for a Foxhunt. Thanks for all the suggestions Bill 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] Quick CW ID'er
Has anyone came up with a cheap easy CW ID'er for a GR 500 repeater? I was hoping I could find something that would say plug into the mic socket that would ID every 10 minutes. Bill WA9BA 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: Quick CW ID'er
LED and the same little micro speaker used on the PicoKeyer kit (the speaker mounts off-board). There's an on-board voltage regulator so you can use a convenient power source like your 12V shack supply. All you need to supply is a project box, DC power source, and a couple of switches. This is a kit, and requires some basic soldering skills and tools. Please also note that you will need an enclosure of some sort, power, and a switch or two. You can see the manual in PDF format at by clicking here. Did you buy a V2.4 or earlier ID-O-Matic? Want the new features? Just email me, you can upgrade (and you don't have to buy anything!) -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of wa9ba Sent: Sunday, March 19, 2006 7:10 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Quick CW ID'er Has anyone came up with a cheap easy CW ID'er for a GR 500 repeater? I was hoping I could find something that would say plug into the mic socket that would ID every 10 minutes. Bill WA9BA 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] Question
I am in the process of setting up a link between a UHF and a VHF repeater. We have a coordinated link frequency and I want to use Motorola Radius M208 radios, (something on hand). My question is, has anyone used this radio to do the same thing, and can it be done with one radio at each site, half duplex? Bill WA9BA 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
We put a DB 224 up after loosing 2 Diamond 510 antennas and a station master to lightning about 5 years ago. We replaced the fiberglass antennas about 1 every year, the DB 224 is DC grounded and doesn't seem to mind the lightning! I aded 1 5/8 inches of aluminum to each loop to get the SWR dowm to a respectable level. (It is between 1.1 and 1.2 to 1) The antennas was originally cut for 150 to 160 Mhz. One thing we did do is drill 1/16th holes on the botom of each loop to let condensation out. Another thing we did was to ad a grounding wire between the 2 sections to make up for any corosion between the joints, and put a ground wire (battery cable) between the antenna and a railing that was grounded to earth, this elimated a problem with noise that developed. It is located on top of a grain elevator 182 HAAT. Bill WA9BA I have a DB224-E in service right now, on a hilltop packet node, and it works very well. The E split is for 138-150 MHz, and this was originally used by a Government station in the 138-140 MHz band. The DB224 is broadband and works well in duplex operation. Sitting in the garage is a new DB224E-E, which is the elliptical- pattern version of the same antenna. This antenna is for a new 2m repeater that will be at one side of the intended coverage area, and I know it will perform exactly as I expect. One of the advantages of a four-bay dipole antenna over a fiberglass vertical of similar gain is that the vertical bandwidth is remarkably superior. This makes the dipole antenna work better for close-in portables and mobiles that are below the main lobe of the pattern. It's also much less prone to wind-induced noise. 73, Eric Lemmon WB6FLY [EMAIL PROTECTED] wrote: Greetings, All, I am in need to replace a vhf repeater antenna that has gone bad and I have come across two DB products 224 type VHF antennas Free. They are on 151.XXX now. My question is, has anyone out there used this antenna, [10mhz spread, 150-160 MHz] on their repeaters? A new one on the ham band will cost $499 plus shipping plus brackets. I would like to use the ones I have, if possible.Let me know if any of you guys have used them, and do they work OK thanks, Mike KD4HLH 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] Kenwood TKR 850
One final question...I didn't think to ask the tech...will my current software work with the upgrade or will I need to upgrade it as well? Kenwood hasn't changed the software as far as I know since it was written, it will work fine. We Bought a TKR 750, we had it for 5 or 6 years and it worked flawlessly so when it came time for a UHF repeater, it was a no brainer on what to buy. We bought both of them from member of this list server. About a year ago, the 850 didn't seem to be working right so a couple of us went to the repeater site. When I checked the power out from the TX to a dummy load, we had only 7 watts out, I thought something was wrong with my Bird so I checked with another watt meter, it was about the same. We contaced our local Kenwood dealer and they replaced the PA with the update, no charge, It now runs 25 watts out, they said we could run it a little higher, maybe 30 watts but we chose to keep it at 25. If I remember correctly, when you program it for a repeater with the software, it automaticly sets the power at 25 watts, if you set it up as a base radio, 40 watts, but this is just from memory. I have the service bullitens on the PA update, if anyone wants it, I can email it to them, it is 4 pages. Bill WA9BA 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] Wanted Side mount for a DB 420
I am looking for a side mount for a DB420 antenna, our club is in the processing of moving our UHF Repeater and need a side mount for a Commercial tower I think it is a Rohn 55 but I,m not possitive. Any help in locating a mount good used or new condition, at a fair price would be appreciated. Thanks Bill WA9BA 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] Converting a Pass filter
I was wondering if anyone has had any luck converting a TX RX 74-70 Pass filter to a Reject? I tryed looking in the archives but is so time consuming. Bill 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] Repeater Controllers
Our club has owned a Link Club Controller for several years. It has worked great but is a big pain in the !@@ to program. We recently traded some things foir a Link RLC-4 controller but here we go again, it is just different enough that you need to stop and read the manual (very time consuming)! What controllers do others use? Is there a controller that has windows based software to program it? The Club has Windows software but it takes hours to load and download the info! What do you use and how easy is it to program? Bill for AARO 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] Repeater Control
At a recent meeting buying or building a new control radio was discussed. I remember reading years ago when the repeater was put on the air for the first time that a control link must be 223 Mhz or above to be a qualified control link. After searching part 97, I cannot find the frequency for a link listed. Has this requirement been lifed or can someone point me to the rule? Bill WA9BA 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] Center Pins for Heliax
We have several 7/8 Heliax connecters that we need center pins for, do any of you know of a source for them? We don't want to buy whole new connectors! Bill WA9BA 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] RCA
We just picked up an RCA Repeater but know nothing about it. The model # is COLL4KJA. Does anyone have a manual or know how to move this to the ham bands? It is on 460.xxx Mhz. Bill WA9BA 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/
