Re: [Repeater-Builder] IOTA Power Supplies
I don't know about IOTA switching supplies, but my Newmar PM-12-70 switching supply causes birdies all through my HF gear here at home. I also used a bank of five brand new 12V batteries tied to a Vector VEC1093A battery charger instead of the Newmar, and that charger as well is a switcher that also caused birdies all through my HF gear. I should have kept my old 70 Ampere non switching supply. Oh well, a lesson learned. Paul Metzger KQ6EH
RE: [Repeater-Builder] IOTA Power Supplies
Thanks Jeff and all those who replied. Appreciate the help. I think I'll pick one up and give it a try. If anything they will be easier to change than the GE MASTR 2 Supplies I have in my cabinets. Andy KC2GOW http://www.sirepeater.com __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
RE: [Repeater-Builder] IOTA Power Supplies
In my opinion, they are very good quality power supplies. I am using the DLS-15 as a four stage charger for my home shack's batteries, and in the year and a half I've owned it, I have had no problems at all. Richard, N7TGB -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Andrew Sent: Sunday, January 07, 2007 5:46 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] IOTA Power Supplies Has anybody had experience with switching power supplies from IOTA Engineering? I am looking at their DLS-90 90amp model. They seem to be worth the money. A lot cheaper than the fancy samlex supplies. Pros/Cons? Andy KC2GOW http://www.sirepeater.com
RE: [Repeater-Builder] IOTA Power Supplies
The Iota supplies look and act pretty much identical to the Duracomm DPS series models best I can tell. I have a few 45, 55, and 75 amp models with no failures to date. I was a little leary when I first started buying the Iota units because most of their literature seems to imply that they are more oriented toward battery charging, specifically RV/marine uses, but I've found no reason to consider them unworthy for radio service. The Iota units seem to be available for less cost than the equivalent Duracomm units. On a somewhat related note, Duracomm got onto my $h!+ list a few months ago. I had two older PS-75 power supplies that had failed, one due to poor connection of the wire inserted into the compression terminal which resulted in overheating and meltdown of the molded plastic piece surround it, and another due to a shorted rectifier. Duracomm wouldn't repair either, stating that they were no longer supported, and they wouldn't provide schematics either. I shelved the former, and fixed the latter myself. The PS series Duracomm power supplies were designed and manufactured by Todd Engineering, not Iota, IIRC. --- Jeff _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Richard Sent: Sunday, January 07, 2007 9:12 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] IOTA Power Supplies In my opinion, they are very good quality power supplies. I am using the DLS-15 as a four stage charger for my home shack's batteries, and in the year and a half I've owned it, I have had no problems at all. Richard, N7TGB -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Andrew Sent: Sunday, January 07, 2007 5:46 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] IOTA Power Supplies Has anybody had experience with switching power supplies from IOTA Engineering? I am looking at their DLS-90 90amp model. They seem to be worth the money. A lot cheaper than the fancy samlex supplies. Pros/Cons? Andy KC2GOW http://www.sirepeat http://www.sirepeater.com er.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.410 / Virus Database: 268.16.7/618 - Release Date: 1/6/2007
RE: [Repeater-Builder] IOTA Power Supplies
Are these switching power supplies a good idea for a repeater environement? I was always under the impression they would not due to the noise they generate. I have 100 amp switching power supply that I was going to use on the repeater and opted against it. Mathew Richard [EMAIL PROTECTED] wrote: In my opinion, they are very good quality power supplies. I am using the DLS-15 as a four stage charger for my home shack's batteries, and in the year and a half I've owned it, I have had no problems at all. Richard, N7TGB -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Andrew Sent: Sunday, January 07, 2007 5:46 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] IOTA Power Supplies Has anybody had experience with switching power supplies from IOTA Engineering? I am looking at their DLS-90 90amp model. They seem to be worth the money. A lot cheaper than the fancy samlex supplies. Pros/Cons? Andy KC2GOW http://www.sirepeater.com __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] IOTA Power Supplies
Hello Andrew, The following text below between the --- lines is a direct quote from a post I made on 6-22-05 on this same board. The PS is still working fine! NO NOISE DETECTED! If you practice good engineering practices you should have the same results. I twist all red and black conductors, ground everything, crimp and solder the heavy leads. (And I use the $1000 commercial crimper.) Keep leads as short as possible and the DC leads away from the AC leads. The name of the dealer that I got mine from is Master Techs at 1-800-848-0558, the salesman was Wesley Miller. The dealer is in Marshal, Michigan. They are usually at the Marshal Michigan Swap. They give a discount to hams if I remember right. I bought the 55 amp unit with the external IQ-4 and paid $222 including shipping and tax. I believe the IQ-4 (intelligent controller) is now available built in. It is only needed if you are charging a battery and then only if it is other than a standard lead acid if I remember correctly. 73, Shanon -- A few of us in the Detroit area are using the IOTA supply/charger. We have them hooked to a truck size AGM (Advanced Glass Mat) battery and use this setup as an automatic UPC in case of power loss. Runs all the radios for 48 hours plus. We love them!! Been in use over a year. The beauty of it is the only external part you need to add is a fuse. No isolator required!! After reading the past articles in QST that had used two other brand charger/power supplies, I questioned them as to noise, since we are using them to power our whole base stations. HF, packet, VHF, UHF and laptops. The local dealer sent me one with the promise of a full refund and he would pay the shipping both ways IF I was unhappy with the emitted noise. I found none. The only way I could get any noise was to stick the probe right into the vent holes. I swept it with my IFR AM-FM 1500 and a Tektronix 492. I went with the 55 amp version and the optional controller since I was going to use an AGP battery. Just under $200 if I remember correctly. As any self respecting ham would do, I took it apart. Very good construction. The on board fuses are in line with the DC output. I will be buying more. (Back up supply for the repeater) -- Andrew wrote: Has anybody had experience with switching power supplies from IOTA Engineering? I am looking at their DLS-90 90amp model. They seem to be worth the money. A lot cheaper than the fancy samlex supplies. Pros/Cons? Andy KC2GOW http://www.sirepeater.com Yahoo! Groups Links
Re: [Repeater-Builder] Iota Power Supplies
Scott, A few of us in the Detroit area are using the IOTA supply/charger. We have them hooked to a truck size AGM (Advanced Glass Mat) battery and use this setup as an automatic UPCin case of power loss. Runs all the radios for 48 hours plus. We love them!! Been in use over a year. The beauty of it is the only external part you need to add is a fuse. No isolator required!! After reading the past articles in QST that had used two other brand charger/power supplies, I questioned them as to noise, since we are using them to power our whole base stations. HF, packet, VHF, UHF and laptops. The local dealer sent me one with the promise of a full refund and he would pay the shipping both ways IF I was unhappy with the emitted noise. I found none. The only way I could get any noise was to stick the probe right into the vent holes. I swept it with my IFR AM-FM 1500 and a Tektronix 492. I went with the 55 amp version and the optional controller since I was going to use an AGP battery. Just under $200 if I remember correctly. As any self respecting ham would do, I took it appart. Very good construction. The onboard fuses are in line with the DC output. I will be buying more. (Back up supply for the repeater) If needed I could look up the name of the dealer and saleman I used. All the info is at home. He is in Marshal, Michigan. 73, Shanon KA8SPW wn1b8 [EMAIL PROTECTED] wrote: I am considering purchasing an Iota high current supply to power the PA in our repeater. Does anyone have any long term experience with these supplies? I don't know much about Iota, just what I've read in their ads and two posts that I found here in the archives. Are they all their manufacturers claim?Scott Madison, WN1B 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/ 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.
