[Repeater-Builder] HELP!!!! can anyone help with a CSI-32 firmware bin file
G'day all well i have a dud CSI-32 pannel and i've tracked the problem down to the firmwares 2732a going south - rare i know but... now here is the big ask does anyone have a copy of the firmware bin file so i can burn a eprom to see if this cures my woes? the pannel serial number is R7368 if that help's thanks for reading 73's Mitch
RE: [Repeater-Builder] Re: Milcom International UHF PA
If I want the caps changed, is there anyone in particular at Crescend I need to talk to? I wasn't aware that they would support the Milcom line. No, just fill out the RMA form from their web site. You might want to ask for an estimate or quote before you send the unit in, but they'll want the RMA form first. --- Jeff WN3A
Re: [Repeater-Builder] Re: Milcom International UHF PA
Thanks again!! Adam N2ACF On 6/7/2010 8:31 AM, Jeff DePolo wrote: No, just fill out the RMA form from their web site. You might want to ask for an estimate or quote before you send the unit in, but they'll want the RMA form first. --- Jeff WN3A
Re: [Repeater-Builder] Re: Milcom International UHF PA
You might talk to Mike Burchfield AA9CQ (Not sure of his call) Jerry W9FS - Original Message - From: Jeff DePolo To: Repeater-Builder@yahoogroups.com Sent: Monday, June 07, 2010 7:31 AM Subject: RE: [Repeater-Builder] Re: Milcom International UHF PA If I want the caps changed, is there anyone in particular at Crescend I need to talk to? I wasn't aware that they would support the Milcom line. No, just fill out the RMA form from their web site. You might want to ask for an estimate or quote before you send the unit in, but they'll want the RMA form first. --- Jeff WN3A
[Repeater-Builder] Micor Repeater Question
Greetings Repeater Gurus! Hope everyone had a great weekend! I have a few questions for youhope its an easy answer. I have a friend running a 75W Micor UHF repeater and he needs to operate it for a single user who uses regular PL tone. My friend has a PL module installed on the Tone Squelch board in the receiver and that's working fine, but his unit, of course, doesn't transmit PL which he needs it to do. Does he need a single PL tone encoder card for the card cage? 146.2 Hz. is the tone he needs. After he installs such a card, would the repeater transmit the 146.2 PL tone, even if activated by the Tone Remote? Third question - Are there any other cards or PL modules out there besides the Card Cage type, or are they all strictly the ones that fit in the Unified Chassis? John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn
[Repeater-Builder] MOVs for power supply primary
Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
Re: [Repeater-Builder] MOVs for power supply primary
Don't use Radio Shack. You're just asking for trouble. Buy from a quality supplier. Others on the list can give you preferred vendors. Don, KD9PT - Original Message - From: kq7dx To: Repeater-Builder@yahoogroups.com Sent: Monday, June 07, 2010 7:38 PM Subject: [Repeater-Builder] MOVs for power supply primary Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
RE: [Repeater-Builder] Micor Repeater Question
I have a friend running a 75W Micor UHF repeater and he needs to operate it for a single user who uses regular PL tone. My friend has a PL module installed on the Tone Squelch board in I presume you mean audio-squelch board. Does he need a single PL tone encoder card for the card cage? 146.2 Hz. is the tone he needs. The PL encoder plugs into the exciter, not the card cage. One jumper cut on the exciter board is required. After he installs such a card, would the repeater transmit the 146.2 PL tone, even if activated by the Tone Remote? Yes. Third question - Are there any other cards or PL modules out there besides the Card Cage type, or are they all strictly the ones that fit in the Unified Chassis? See above. Don't confuse a PL encoder board with an F1-PL card in the cage, totally different animal... --- Jeff WN3A
Re: [Repeater-Builder] MOVs for power supply primary
I added a 130 Volt MOV across the hot and neutral of an Astron 50 Amp power supply for a repeater and had an interesting effect. We lost AC power and switched over to the generator. When the load was added to the generator, the Onan's voltage sagged a bit and the throttle opened to bring the speed back. It overshot slightly and was high enough to trip the MOV. That short slowed the generator down until the voltage was too low and then the generator sped up again. And again it fired the MOV and slowed down until it cleared. It kept oscillating with huge voltage swings until I unplugged the Astron power supply. Sigh. kq7dx wrote: Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
Re: [Repeater-Builder] MOVs for power supply primary
- Original Message - From: AA8K73 GMail aa8...@gmail.com I added a 130 Volt MOV across the hot and neutral of an Astron 50 Amp power supply for a repeater and had an interesting effect. We lost AC power and switched over to the generator. When the load was added to the generator, the Onan's voltage sagged a bit and the throttle opened to bring the speed back. It overshot slightly and was high enough to trip the MOV. That short slowed the generator down until the voltage was too low and then the generator sped up again. And again it fired the MOV and slowed down until it cleared. It kept oscillating with huge voltage swings until I unplugged the Astron power supply. That's very interesting, all right. Was this a single-cylinder 3600 RPM generator, or was it one of the twin-cylinder motor-home generators? I used to work for an Onan distributorship back when (70's) and we had a similar problem with a Southwestern Bell setup. They had a 2.5 LK, which was a single cylinder genset that ran at 1800 RPM. They switched a 500 watt load in and out several times a minute. When the 500 W load hit, it did the same thing you had described. I brought up a 1 KW load (heater elements) and plugged them in the circuit full-time, and it worked like a champ, going between about 40% and 60% of full load. Pretty stable. :-) Ray, KB0STN
Re: [Repeater-Builder] MOVs for power supply primary
I agree fully with NOT using Radio Shack low quality run-off manufacturer seconds. Use NTE 140V. The trick is you need to use THREE. One across the hot and neutral. one from hot to ground and one from neutral to ground. MOV's are a funny dog they do not usually short but degrade very quickly depending on number of incoming spikes they suppress. Used them alot to supress the reverse EMF in electromagnetic locking devices, 8+ H, yes henrys! , not micro or milli. suggest replacing annually. Kevin --- On Mon, 6/7/10, kq7dx kq...@yahoo.com wrote: From: kq7dx kq...@yahoo.com Subject: [Repeater-Builder] MOVs for power supply primary To: Repeater-Builder@yahoogroups.com Date: Monday, June 7, 2010, 8:38 PM Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
RE: [Repeater-Builder] MOVs for power supply primary
Two things leap out at me: Your generator has some very serious regulation problems, and may be undersized, and your Astron power supply must not have the correct fuse installed. If the MOV fires, the fuse is sized to blow instantly. That said, Astron has been known to install MOVs that have a wide tolerance, and those near the low end may go into avalanche mode at only a few volts above nominal 120 VAC. The national standard for nominal utilization voltage is 120 +/- 5%. That means the utility can supply anything between 114 and 126 VAC and be within the required tolerance. 126 VAC is darned close to 130 VAC, and that MOV is already getting hot! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of AA8K73 GMail Sent: Monday, June 07, 2010 6:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] MOVs for power supply primary I added a 130 Volt MOV across the hot and neutral of an Astron 50 Amp power supply for a repeater and had an interesting effect. We lost AC power and switched over to the generator. When the load was added to the generator, the Onan's voltage sagged a bit and the throttle opened to bring the speed back. It overshot slightly and was high enough to trip the MOV. That short slowed the generator down until the voltage was too low and then the generator sped up again. And again it fired the MOV and slowed down until it cleared. It kept oscillating with huge voltage swings until I unplugged the Astron power supply. Sigh. kq7dx wrote: Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
Re: [Repeater-Builder] MOVs for power supply primary
Harbach sells a set of three that is for the SB-220. You might look at them. 73, Dick, W1KSZ -Original Message- From: kq7dx kq...@yahoo.com Sent: Jun 7, 2010 8:38 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MOVs for power supply primary Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s Yahoo! Groups Links
RE: [Repeater-Builder] MOVs for power supply primary
I replaced two in two ASRON power supplies that got zapped with 220 and seem to be still working. I would recommend getting a good brand if you have the resource. Mike Mullarkey K7PFJ _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kq7dx Sent: Monday, June 07, 2010 6:39 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MOVs for power supply primary Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. Thanks for the help.. 73s
RE: [Repeater-Builder] MOVs for power supply primary
Regarding your last question, an MOV normally will go into avalanche mode when the applied voltage exceeds its threshold value. It becomes a low shunt resistance, which should blow the input fuse in the device it is protecting. Once the voltage is removed and the MOV cools off, it usually recovers. However, usually is not always the case, so it may be prudent to replace all three MOVs after a surge event. As others have noted, an MOV rated at 130 VAC is suitable for a 120 VAC appliance only if its tolerance is tight, say +/- 2%. You won't find these at Radio Shack. It may be a good idea to install MOVs rated at 140 VAC with a 10% tolerance. Always protect the device with a fuse sized as recommended by the manufacturer, and don't substitute a fast-blow fuse for a time-delay fuse, or vice-versa. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kq7dx Sent: Monday, June 07, 2010 5:39 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MOVs for power supply primary Hello to group, Is putting an MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea? I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. Also, are the MOVs that radio shack sell any good? Rated at 130VAC. Any body used them? Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working? Thanks for the help.. 73s
RE: [Repeater-Builder] MOVs for power supply primary
Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. I'm not that big of a fan of MOV's, but if you really feel the need to add them across the transformer primary, as long the input to the power supply is properly fused, whatever floats your boat. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... I'm not sure that there's anything that Radio Shack sells any more that's any good, is there? Seriously, I'd buy Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. My experience that small MOV's fail in one of two ways. Either they fail shorted, quite often with no outward visible signs, or they fail open catastrophically as a zillion pieces of shrapnel that can cause damage to nearby components, wiring, people, livestock, etc.. Another downside to MOV's is that after they've successfully quenched an over-voltage event of any significant energy, their clamping voltage changes. So, you may end up with less and less protection over time. Good surge arrestors/TVSS's are expensive, and like most things in life, you get what you pay for. If your site has a good surge arrestor at the service entrance, you really shouldn't need anything extra. --- Jeff WN3A
RE: [Repeater-Builder] MOVs for power supply primary
There is no reason to have to put them period. Extra protection is well.. to each his own. MOV's are not the greatest, but certainly wont hurt Kevin B.S.E.E. --- On Mon, 6/7/10, Jeff DePolo j...@broadsci.com wrote: From: Jeff DePolo j...@broadsci.com Subject: RE: [Repeater-Builder] MOVs for power supply primary To: Repeater-Builder@yahoogroups.com Date: Monday, June 7, 2010, 11:54 PM Hello to group, Is putting a MOV from hot to ground, neutral to ground, on the primary of the transformer of the power supply a good idea.. I have a ICE surge suppressor on in front as well but thought I would put more inside the supply for back up. I'm not that big of a fan of MOV's, but if you really feel the need to add them across the transformer primary, as long the input to the power supply is properly fused, whatever floats your boat. Also, are the MOVs that radio shack sell any good. Rated at 130VAC. Any body used them... I'm not sure that there's anything that Radio Shack sells any more that's any good, is there? Seriously, I'd buy Last question: when MOVs fail or take a surge do they fail in a shorted condition taking out the fuse till the MOV can be replaced, or do they blow or fail open leaving the supply working. My experience that small MOV's fail in one of two ways. Either they fail shorted, quite often with no outward visible signs, or they fail open catastrophically as a zillion pieces of shrapnel that can cause damage to nearby components, wiring, people, livestock, etc.. Another downside to MOV's is that after they've successfully quenched an over-voltage event of any significant energy, their clamping voltage changes. So, you may end up with less and less protection over time. Good surge arrestors/TVSS's are expensive, and like most things in life, you get what you pay for. If your site has a good surge arrestor at the service entrance, you really shouldn't need anything extra. --- Jeff WN3A
[Repeater-Builder] voting receivers
Hey guys, Alright, i've just been giving the responsibility of being the head contact for a commercial repeater, and pretty much in charge of it. It's a damn good machine, a quantar. The one thing i'm not the best at is voting receivers. They only have 2 of them. Here are a few questions, how are they usually connected, i take it there isn't a lot to it, but just trying to learn more about voting receivers. Thanks, Jed
