[Repeater-Builder] PA brick
I have an NEC module type MC-5842, does anyone have any data on this part as Google etc, have failed to provide any.It is dated 1983 ! Regards Andy G3UEQ
[Repeater-Builder] Belden 9888 Triax coax question?
I recently replaced a piece of Belden 9913 coax between the repeater TX and the duplexer with a piece of RG-214. All of our noise problems went away. Unfortunately I am out of RG-214. I have some Belden 9888 Triax and need to know if anyone has experience using it for repeater applications. Wayne WA5LUY
[Repeater-Builder] Re: Talking clock has failed on our RC-85 V5.2 FW.
Join the Yahoo ACC Controller Group (one of at least two). http://groups.yahoo.com/group/ACC/ Look in the group's files section for the clock reset secret password information. You'll need to reset your clock chip (if it still works) to the proper date time (a few decades subtracted from the date) and then enter in a reset password. It works, it's well known... If not, you can describe the problem with a post to the group and we'll tell you a similar answer back via our posts to the group. cheers, s. wa6mha_glen wa6...@... wrote: I've searched the forum and the internet for info on the talking clock option on our rc-85 w/ v 5.2 firmware but found nothing so far. Our rc-85 is still in use at 4000 ft so I'm collecting data before we visit the site. Our manual and upgrade data was not been kept up to date over the last 20+ years so I'm starting from scratch. The paperwork I do have shows an upgrade to v5.2 firmware but no date. It mentions 2 IC's were installed. One I'm sure was a new EPROM and the other mentions a battery backed up clock chip if I read it right. Is it possible the Y2K issue kicked in, or that the battery backup on the clock chip has failed? Everything I can find about the clock is how to add a RS talking Clock, not much about the onboard option? We will go to the site and document the current chipset on our rc-85 when time permits. It can be sent out for repairs but we don't have a spare controller so the machine would be down during that time, something we're trying to avoid. I did get the feeling that this may be a warning sign that the EPROM's may be failing and this is only the start. A newer replacement may be the way to go as a last resort! Thank you for any help you can give us. Are there any groups dedicated to ACC Controllers? Glen wa6mha
Re: [Repeater-Builder] PA brick
I have a MC-5844. I don't have any info on it either. - Original Message - From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com Sent: Wed Jul 29 03:55:45 2009 Subject: [Repeater-Builder] PA brick I have an NEC module type MC-5842, does anyone have any data on this part as Google etc, have failed to provide any.It is dated 1983 ! Regards Andy G3UEQ
Re: [Repeater-Builder] Talking clock has failed on our RC-85 V5.2 FW.
At 10:02 AM 07/28/09, Glen Roe WA6MHA wrote: I've searched the forum and the internet for info on the talking clock option on our rc-85 w/ v 5.2 firmware but found nothing so far. Our rc-85 is still in use at 4000 ft so I'm collecting data before we visit the site. Our manual and upgrade data was not been kept up to date over the last 20+ years so I'm starting from scratch. The paperwork I do have shows an upgrade to v5.2 firmware but no date. It mentions 2 IC's were installed. One I'm sure was a new EPROM and the other mentions a battery backed up clock chip if I read it right. Is it possible the Y2K issue kicked in, or that the battery backup on the clock chip has failed? Everything I can find about the clock is how to add a RS talking Clock, not much about the onboard option? We will go to the site and document the current chipset on our rc-85 when time permits. It can be sent out for repairs but we don't have a spare controller so the machine would be down during that time, something we're trying to avoid. I did get the feeling that this may be a warning sign that the EPROM's may be failing and this is only the start. A newer replacement may be the way to go as a last resort! Thank you for any help you can give us. It's a known bug with the Year 2000 code. The cure is to set the calendar to 28 years ago (28 is due to the day of week and leap year sequences repeating every 28 years), and re-enabling the cloak-calendar chip. If your ACC is still running in 2027 you would set it to 56 years ago (as far as ACC goes it's always 1971 to 1999). See http://www.repeater-builder.com/acc/acc-rc-85-96y2k.html Are there any groups dedicated to ACC Controllers? Yep, two. See the top of the page at http://www.repeater-builder.com/acc/acc-index.html Glen wa6mha Mike WA6ILQ
RE: [Repeater-Builder] Getting mice out of a repeater sight
Any hole that is the size of a dime or larger will let mice in. Stainless steel wool and the expanding foam that they sell in a spray can at Home Depot is your friend. Just stuff the stainless steel wool into the hole and lock it in place with a squirt of the foam. Mike WA6ILQ At 01:49 PM 07/28/09, you wrote: Hi Jed, If you have mice, you are not in a controller environment. The mice have taken control. From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jed Barton Sent: Tuesday, July 28, 2009 2:31 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Getting mice out of a repeater sight i'm in a controled environment. -- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Tuesday, July 28, 2009 4:25 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Getting mice out of a repeater sight Leave them a note, tell them it's a CLOSED repeater system. ( Sorry, I couldn't resist..) Are you in a cold climate area or is the repeater in a WARMER area than the outside ambient air temp? - M From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jed Barton Sent: Tuesday, July 28, 2009 4:19 PM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Getting mice out of a repeater sight Hey guys, I am sure many of you have been through this before. The evil mice decided to waunder in to my repeater sight. Up until now they avoided my repeater, but when I went up there, I was less than pleased. They didn't chew any wires thank god, but they walked across the top of the icom rp4020, and left some presents if you know what I mean. I need some input, what's the best way to clean it up, anything in particular? All the covers were on, so I don't think they got inside, but haven't pulled the cover off yet. Any ideas? Thanks, Jed __ Information from ESET NOD32 Antivirus, version of virus signature database 4283 (20090727) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.comhttp://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4283 (20090727) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4283 (20090727) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.comhttp://www.eset.com No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.33/2267 - Release Date: 07/27/09 17:59:00
[Repeater-Builder] Re: Getting mice out of a repeater sight
It is best to keep those mice out of sight at your site or else pest control might cite you. --- The evil mice decided to waunder in to my repeater sight.
[Repeater-Builder] Decoder project MDC
Hi. I'm looking to build a MDC1200 decoder for my repeater to monitor the activity. Anyone else tried to construct one or can help me out? Thanks
Re: [Repeater-Builder] Decoder project MDC
agrimm0034 wrote: Hi. I'm looking to build a MDC1200 decoder for my repeater to monitor the activity. Anyone else tried to construct one or can help me out? Thanks You may be interested to know about a C library I wrote. See http://www.matthew.at/mdc/ Requires the ability to capture audio samples and feed them to the library. It is also not that difficult to port this to run on a PIC microcontroller using a single bit for audio input. Matthew Kaufman
Re: [Repeater-Builder] Getting mice out of a repeater sight
At 03:55 PM 07/28/09, you wrote: Use a mix of bleach and water (10% bleach) to clean all surfaces with including any land mines left by the mice. I would also spray the floor area around your radio so its wet, let it dry and then sweep it. I would use some type of decon or the sticky traps and put moth balls in the radio and area around it. I would also look for the places they are getting in and cover them with some type of metal or stuff steel wool into small openings. Yes, I already commented on this thread, but here's a bit more info... Plain steel wool is a temporary solution, in a year it will rust away, maybe less, depending on your local humidity, and then the mice are back in. I use stainless steel wool, it's a specialty product and hard to find but a quick source of it is any muffler shop that does glass packs. Many years ago they were packed with fiberglass wool (hence the name glass pack), now they are filled with stainless steel wool. Just have the shop cut open an old one with their Sawzall and take what is left of the filling. Or if you can find someone that repacks mufflers then they will have huge reels of 4 wide (or wider) stainless steel wool. Or if you have a McMaster-Carr outlet in your area (or are willing to do mail order) look here http://www.mcmaster.com/#stainless-steel-wool/=2yjnig About half way down the page, look for Rustess Metal Wool and for product number 7364T74. Three pads will set you back about $6.40 and if you cut them up you can fill from 6 to 12 holes Or if you just want one or two, look for a Star Brite brand Magic Scrub pot scrubbing pad at your local market. You will find that McMaster-Carr is a lot cheaper. The Magic Scrub pad is a form of stainless steel wool, but has very sharp edges. See the photo at http://www.discountmarinesupplies.com/Wood_Teak_Care-STARBRITE_MAGIC_SCRUB_STAINLESS_STEEL_WOOL_PAD.html Whatever form it takes, the stainless steel will cut through most gloves - even leather. You will want to wear gloves anyway, use heavy scissors to cut it and then use a stick to pack it into any hole that is the size of a dime or larger, and lock it in place with a squirt of the spray can expanding orange fireblock foam that Home Depot sells under the name of Great Stuff (it's a red can with an orange plastic top). See http://greatstuff.dow.com/greatstuff/diy/products/fireblock.htm. The yellow top can http://greatstuff.dow.com/greatstuff/diy/products/gc.htm is the foam less the fireblock, and I won't use it at a repeater site. You need to use both the stainless steel wool and the foam rather than the foam alone as the critters will go right through the foam like it wasn't even there. And remember rubber gloves and some type of breathing respirator when cleaning. Hanta is a nasty virus. Talk to your local paramedics, have them show you an N95 face mask, and the trick you use when you put it on that it takes to make it seal properly. Then go get a few. The common dust masks that you buy at Home Depot (or at Harbor Freight) are worthless for this (the virus particles are much much smaller than dust). The paramedics know where to get the N95 masks in any given area, or if he's feeling good he may give you one or two. As far as Hanta goes, see http://www.cdc.gov/h1n1flu/masks.htm Rat poison (Decon, etc) works, but you have to realize HOW it works - it's a two-part mix. When the rat eats it, the first part is a drug that makes him thirsty. He leaves the building, finds water, and drinks. Thats when the second part goes into action - the poison dissolves and kills him. He's supposed to die outside at the water hole. At least that's what the plan was. But even good plans fail. And if the rat has already drank, the poison dissolves immediately after he eats it and you have dead rats all over the place. Or if the mouse or rat does get outside, a snake can eat him. Then you get secondary kills of beneficial life forms (the snakes keep the mouse and rat population down). Then the hawk catches and eats the dying snake, and the hawk dies. Overall, it's better to plug the holes first than to spread poison around. Mike WA6ILQ
[Repeater-Builder] Hp 8921a test set
I accidently hooked up my test leads to my 8921a wrong and introduced high Watts into the duplex out socket .Removed the a23 module and found the cr203 And cr501 burnt out in the duplex switch .I have replaced them and the unit Seems to be working again .Can anyone suggest simple ways to check the Duplex and ant in section to make sure there isn't any more parts damaged . Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Phone 0749922574 or 0409159932 www.kerinvalecomaudio.com.au
[Repeater-Builder] how do I turn off email notice?
I selected web only so I don't get my email box filled up every day with posts. How do I turn it off?
RE: [Repeater-Builder] Belden 9888 Triax coax question?
I recently replaced a piece of Belden 9913 coax between the repeater TX and the duplexer with a piece of RG-214. All of our noise problems went away. A HA! Unfortunately I am out of RG-214. I have some Belden 9888 Triax and need to know if anyone has experience using it for repeater applications. 9888 has bare copper braid. It will likely get noisy as it ages. The advantage RG-214 has is that the shield is that it is silver; it doesn't get nearly as noisy because silver oxide is still a fairly good conductor. If you'll pick up the shipping I'll send you as much RG-214 as I can cram into a USPS flat-rate priority mail shipping box. Email direct. --- Jeff WN3A
[Repeater-Builder] Re: Talking clock has failed on our RC-85 V5.2 FW.
Thanks for the link Skip. I just joined. I thought I had searched the groups for ACC info but must have missed it. Glen wa6mha --- In Repeater-Builder@yahoogroups.com, skipp025 skipp...@... wrote: Join the Yahoo ACC Controller Group (one of at least two). http://groups.yahoo.com/group/ACC/ Look in the group's files section for the clock reset secret password information. You'll need to reset your clock chip (if it still works) to the proper date time (a few decades subtracted from the date) and then enter in a reset password. It works, it's well known... If not, you can describe the problem with a post to the group and we'll tell you a similar answer back via our posts to the group. cheers, s. wa6mha_glen wa6mha@ wrote: I've searched the forum and the internet for info on the talking clock option on our rc-85 w/ v 5.2 firmware but found nothing so far. Our rc-85 is still in use at 4000 ft so I'm collecting data before we visit the site. Our manual and upgrade data was not been kept up to date over the last 20+ years so I'm starting from scratch. The paperwork I do have shows an upgrade to v5.2 firmware but no date. It mentions 2 IC's were installed. One I'm sure was a new EPROM and the other mentions a battery backed up clock chip if I read it right. Is it possible the Y2K issue kicked in, or that the battery backup on the clock chip has failed? Everything I can find about the clock is how to add a RS talking Clock, not much about the onboard option? We will go to the site and document the current chipset on our rc-85 when time permits. It can be sent out for repairs but we don't have a spare controller so the machine would be down during that time, something we're trying to avoid. I did get the feeling that this may be a warning sign that the EPROM's may be failing and this is only the start. A newer replacement may be the way to go as a last resort! Thank you for any help you can give us. Are there any groups dedicated to ACC Controllers? Glen wa6mha
[Repeater-Builder] Re: Decoder project MDC
Not to discourage you from building, but an easy, low cost solution to MDC decoding is to find a used Motorola B1666 or B1667 desktop signaling unit. In addition to a built in display, these units have an RS232 port which can log the MDC events to a printer or to an attached PC running a simple communications program in file capture mode. They can also encode from a built in keypad. For a more comprehensive solution, look at the products from Cimarron Technologies at: http://cimtechcorp.com/ The Cimarron decoder can be configured with a hardware output to connect to your repeater controller to allow [or disallow] access to certain units. --- --- In Repeater-Builder@yahoogroups.com, agrimm0034 agrimm0...@... wrote: Hi. I'm looking to build a MDC1200 decoder for my repeater to monitor the activity. ...
RE: [Repeater-Builder] how do I turn off email notice?
Ron, I think Yahoo is having issues. I quit a group 2 days ago and I'm still getting emails. I even rejoined and quit again and it didn't help. 73, Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ron Sent: Wednesday, July 29, 2009 6:51 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] how do I turn off email notice? I selected web only so I don't get my email box filled up every day with posts. How do I turn it off?
Re: [Repeater-Builder] Hp 8921a test set
Ian, I did the same thing. (easy to do isn't it!!) I ran the internal tests before and after the repairs and there was a significant difference. That's what I did to be sure it was working OK. I must admit, it's probably not as good as sending it somewhere for calibration, but on a ham budget, it works OK enough. You could always hook your HT to the I/O port and check sensitivity then connect it to the duplex port and see if it's about the same. That's a REAL easy benchmark. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 kerinvale wrote: I accidently hooked up my test leads to my 8921a wrong and introduced high Watts into the duplex out socket .Removed the a23 module and found the cr203 And cr501 burnt out in the duplex switch .I have replaced them and the unit Seems to be working again .Can anyone suggest simple ways to check the Duplex and ant in section to make sure there isn't any more parts damaged . Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Phone 0749922574 or 0409159932 www.kerinvalecomaudio.com.au http://www.kerinvalecomaudio.com.au/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.35/2271 - Release Date: 07/29/09 18:07:00
RE: [Repeater-Builder] how do I turn off email notice?
Yahoo seems to take several days to execute changes. I changed an e-mail address for one group and it took nearly a week. I had about given up when the emails began going to the new address. GL de W1EL Eric Lowell Eastern Maine Electronics Inc. 48 Loon Road Wesley ME 04686 eme@starband.net www.satnetmaine.com --- On Wed, 7/29/09, Mike Besemer (WM4B) mwbese...@cox.net wrote: From: Mike Besemer (WM4B) mwbese...@cox.net Subject: RE: [Repeater-Builder] how do I turn off email notice? To: Repeater-Builder@yahoogroups.com Date: Wednesday, July 29, 2009, 9:06 PM Ron, I think Yahoo is having issues. I quit a group 2 days ago and I’m still getting emails. I even rejoined and quit again and it didn’t help. 73, Mike WM4B From: Repeater-Builder@ yahoogroups. com [mailto:Repeater- buil...@yahoogro ups.com] On Behalf Of ron Sent: Wednesday, July 29, 2009 6:51 PM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] how do I turn off email notice? I selected web only so I don't get my email box filled up every day with posts. How do I turn it off?
Re: [Repeater-Builder] how do I turn off email notice?
A recent email from YahooGroups management has detailed some bugs in groups with membership greater than 350 members. It may take some time to work out. It is not a problem with this group, alone, but with all large groups. 73, Jon Pearl - W4ABC Moderator - Original Message - From: Eric Lowell To: Repeater-Builder@yahoogroups.com Sent: Wednesday, July 29, 2009 9:57 PM Subject: RE: [Repeater-Builder] how do I turn off email notice? Yahoo seems to take several days to execute changes. I changed an e-mail address for one group and it took nearly a week. I had about given up when the emails began going to the new address. GL de W1EL
[Repeater-Builder] GE Mastr II IDA drop timer
I have a Mastr II with an IDA controller (19B234871). I followed the Service manual(LBI-31807D) and changed jumpers H18,19,20,21 to try to extend the drop or Hang timer. None of these changes made any difference. Does anyone have any ideas why these changes did not work? Thank you!! -Bill -N2WNS
Re: [Repeater-Builder] Sinclair Q202 duplexers (frankenstein series)
Again Eric, thanks for the advise. Today I got the Anaritsu sitemaster out and started playing with the return loss sweep into a couple different BpBr duplexers I had laying about. I put a 50 ohm load on one side of the T and the sitemaster cable on the other side. I swept the frequecy for return loss maximum db (lowest swr). I could really see the pass tuning in a much sharper light. On the sitemaster, the return loss looks very much like the notch does on the aeroflex's tracking generator. Is this what we want to see and tune the pass on the cans to? I do not have a network analyser, so the sitemaster and the tracking generator in the areoflex will just have to do. I am thinking that I need to use the sitemaster to tune each bandpass individually and then tweak after re-connecting the harness. Then use the areoflex's tracking generator to set the notches. Does this sound. About right? Thanks 73 de N5NPO Norm - Original Message - From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com Sent: Mon Jul 27 21:51:01 2009 Subject: RE: [Repeater-Builder] Sinclair Q202 duplexers (frankenstein series) Norm, A Polyphaser does not put a DC ground on the center conductor of the feedline- nor does any other inline arrestor of any brand, except a quarter-wave shorted stub. But that is impractical at 2m. My point was simply that a single bandpass cavity on either the TX or the RX side, between the duplexer and the antenna tee, will put a DC ground on the feedline at the transmitter end. Most antennas are DC grounded, but a lot can happen to that feedline between the antenna and the duplexer. One 2m repeater I have on a hilltop suffered a lot from wind-caused static discharges (aka triboelectric charging) until I put a single bandpass cavity on the receive side. My intent was to prevent desense from the adjacent FM broadcast station, but the static elimination was a bonus. Regarding the determination of high pass versus low pass, this is usually determined by the design of the duplexer. Some designs are symmetrical, while others are asymmetrical. In most cases, the loop coupling will be different between the high side and the low side, so it is convenient to simply follow the manufacturer's settings, and their tuning instructions. In the case of the Sinclair Q202-G, the loop assemblies are all identical, and the notch tuning capacitors are the same as well, regardless of which pass side they're on. You're correct about bandpass duplexers being unsuitable for the 600 kHz split at 2m. However, I have a 8 bandpass duplexer on a commercial repeater that is using a 5.26 MHz split on VHF, and it works perfectly. I specified it because of the antenna being the high point on the tower, and I wanted DC ground at the duplexer for repeater protection. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of NORM KNAPP Sent: Monday, July 27, 2009 11:20 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: Re: [Repeater-Builder] Sinclair Q202 duplexers (frankenstein series) Again Eric Thanks for the wisdom and information. I will digest this over the next several days and when I can I am going to apply it. I have what I feel is a very good service monitor with tracking generator/spectrum analyzer. I have access to an Anritsu site master. It has a return loss bridge built in (I think) and I will give the low pass cans another go. The thing that I am curious about is what determins what side of the pass the notch will go? What makes a can a low pass can and not a high pass can? Does the value of ths capacitor do this? You mentioned the fact that BpBr duplexers don't have DC ground potential. I do have polyphasers and grounding pretty well covered. The repeater is at an old ATT Long lines microwave site. Grounding is not a problem. What were you saying about using bandpass only duplexers? I didn't think they were sharp enough for 600khz split. How many cans would you need to accomplish this and what are the advantages! I recently aquired another set of sinclair duplexers. They have no model info on them. They are high band VHF and are in the 154-158 range now. They were connected to a 250watt micor repeater. They apear to be hybrid ring type but they are small like 1/2 gallon milk carton sized and the harness has exposed braid between the cans (cartons) and the T's. They are mounted on a 19 rack panel with a cover. The cover is missing. The rack panel has the Sinclar tag and logo with ERP and the atom on it... Very strange. Again, I thank you for the wisdom and advice. 73 de N5NPO Norm - Original Message - From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com
[Repeater-Builder] Need Programing Cables....
HELP, I am looking for programing cables for the Kenwood TM-V7A Radio (PG-4S) and a Standard GX-2000 Radio (PPS/C). If anyone has one that they would be willing to get rid of, Please E-Mail me Directly at w4...@yahoo.com. Thank You, Grady Evans W4GLE
Re: [Repeater-Builder] Need Programing Cables....
If I am not mistaken, you can adapt a vertex/yaesu cable or even an icom cable to work on the standard. The kenwood will need a kenwood cable. It has separate tx and rx data paths. 73 de N5NPO Norm - Original Message - From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com Sent: Wed Jul 29 22:00:32 2009 Subject: [Repeater-Builder] Need Programing Cables HELP, I am looking for programing cables for the Kenwood TM-V7A Radio (PG-4S) and a Standard GX-2000 Radio (PPS/C). If anyone has one that they would be willing to get rid of, Please E-Mail me Directly at w4...@yahoo.com mailto:w4gle%40yahoo.com . Thank You, Grady Evans W4GLE
[Repeater-Builder] Micor manuals in pdf ?
I have both vhf and uhf Micor repeaters just inherited , Both appear to be 60 watt units and are HUGE ( about 50kg)so any ideas where I get manuals for them in pdf , a quick check and I might dispose of the uhf unit ( I am in Brisbane AU) Thanks guys _ Need a new model in your life? Sell your car fast. http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fsecure%2Dau%2Eimrworldwide%2Ecom%2Fcgi%2Dbin%2Fa%2Fci%5F450304%2Fet%5F2%2Fcg%5F801459%2Fpi%5F1004813%2Fai%5F866383_t=758314219_r=carpoint_tagline_m=EXT
Re: [Repeater-Builder] Hp 8921a test set
Ill try that .which is ht you refer to Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Phone 0749922574 or 0409159932 www.kerinvalecomaudio.com.au ---Original Message--- From: Scott Zimmerman Date: 30/07/2009 11:08:31 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Hp 8921a test set Ian, I did the same thing. (easy to do isn't it!!) I ran the internal tests before and after the repairs and there was a significant difference. That's what I did to be sure it was working OK. I must admit, it's probably not as good as sending it somewhere for calibration, but on a ham budget, it works OK enough. You could always hook your HT to the I/O port and check sensitivity then connect it to the duplex port and see if it's about the same. That's a REAL easy benchmark. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 kerinvale wrote: I accidently hooked up my test leads to my 8921a wrong and introduced high Watts into the duplex out socket .Removed the a23 module and found the cr203 And cr501 burnt out in the duplex switch .I have replaced them and the unit Seems to be working again .Can anyone suggest simple ways to check the Duplex and ant in section to make sure there isn't any more parts damaged Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Phone 0749922574 or 0409159932 www.kerinvalecomaudio.com.au http://www.kerinvalecomaudio.com.au/ -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.35/2271 - Release Date: 07/29/09 18:07:00
