[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
Tim, I've been reading the repeater builder and was wondering if you have the Bipolar Prom solved? I have a Spectrum VHF repeater and encountered the same problem with the ID'er you have. If it is the same chip number as mine (I'll look at the number tomorrow... 21?? I think) they are capable of programming 4 different ID strings before the Prom is totally used up. They only use a single bit at each address and cycle downward through the chip's addresses to store the ID data. You then just set your ID'er to read the correct bit. I managed to program an additional channel on the chip from the previous owner (BY HAND) and got mine going. I finally found and purchased a couple Prom chips... (don't recall where - been 5 yrs) If you let me know the number of the chip you need or number of the ID'er board I would be glad to share any info I might have. I could even let you have one of my chips if it will work for you. I never bothered to program either of my spares after sweating through blowing the original chip, one bit at a time. It ID's fine using the second channel and you know what they say... If it ain't broke --- Don't fix it !. I also didn't know anyone who owned a programmer and wasn't aware of the Repeater Group back then. As helpful as they are on here, if you ask, someone on this group must have a Bipolar Prom Burner kicking around that would program a chip if you provide the chip and data. Use my call at juno.com if you want to contact me off list. Larry - N7FM - Original Message - From: Mike Morris To: Repeater-Builder@yahoogroups.com Sent: Saturday, August 25, 2007 6:58 PM Subject: Re: [Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom At 01:55 PM 08/24/07, you wrote: --- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: Spectrum Repeater CW ID'er Bipolar Prom If the IDer has a PROM then little can and should be done to go another way...a new PROM. Spectrum sells a replacement prom from about $55, which is kind of out of line for a price... but at least it's available. You can find/ask someone with a bipolar prom burner to make a new chip for you. But you have to find the chip and figure out how to map your call sign into the new part. One can also replace a Prom with an Eprom using a small adapter daughterboard, which is a path I've used many times. You need only have the eprom, programmer and set up the programming. Prom daughter/adapter boards run under $20 each... Another option would be to disable the factory ID'er and install an ID-O-Matic or similar ID unit. cheers, skipp Thank you Skipp for the manual for the SCR-77. I can not contact Spectrum. They will not respond to there e-mails and when you call them you just getting a recording saying to leave a message, which I have, still no contact yet. I have also thought about installing another ID'er. What would be my best bet there. I have heard Com-Spec (Communication Specialists) makes a small simple ID'er. 73, Tim Or bypass the entire controller and use a low end NHRC or ICS controller to do it all.
[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
No problem Tim... also thank you to Lou for sending me/us another different copy of the manual so we pretty much have all versions covered. Hints Keywords when dealing with Spectrum: Call, leave your first name and phone number in a message saying that you want to order something and to please call back when they have a spare moment. (say nothing more about what item you want to order) When the guy calls you back say you want to order a CW ID'er prom for your repeater for an urgent project where the site access is very time limited by inbound weather (or some similar story). Order the prom with the firm instructions you need it asap (but not over-night shipping) and use your credit card for the purchase. Nicely beg/request for the part asap. If you receive nothing within the credit card charge dispute window... formally reverse the charge before the deadline. If the prom arrives in time... kiss the ground and bow to the east not to mention report back here with a few kind and real words and or your experience dealing with Spectrum. My last two dealings were actually quite good... just be semi firm that you need the prom asap and ask for a realistic estimate to actually receive your chip. Otherwise you should consider the ID-O-Matic (or similar) as a very cost effective replacement option. Hard to beat the $20 price tag... You need only disable the internal Spectrum CW ID unit, which is not that hard to do. Just the way Spectrum wants to do business... or lack there of. Decades ago I was offered a Spectrum Dealership... glad I didn't take it. But the original Demo Spectrum 440 repeater I have here is still on the air and working without any problems... ever. Stone stock and working well... go figure. cheers, skipp Thank you Skipp for the manual for the SCR-77. I can not contact Spectrum. They will not respond to there e-mails and when you call them you just getting a recording saying to leave a message, which I have, still no contact yet. I have also thought about installing another ID'er. What would be my best bet there. I have heard Com-Spec (Communication Specialists) makes a small simple ID'er. 73, Tim
[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
Or bypass the entire controller and use a low end NHRC or ICS controller to do it all. ... if replacing the original controller board operation with an external repeater controller would gain the some practical and/or functional abilities. Otherwise the ID-O-Matic CW ID'er is a pretty cool alternative that works very well. S.
[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
--- In Repeater-Builder@yahoogroups.com, Ron Wright [EMAIL PROTECTED] wrote: Ok, from what I can tell these are the numbers on the PROM: +B8620 DM74S287AN That is how it is on the PROM Does that look like the correct one? This is an ID77 board. thanks, Tim Comm Spec sells a programmable CW ID for about $60. However, what is the PROM...part number. I might have a programmer for it. Might even have the PROM. 73, ron, n9ee/r From: skipp025 [EMAIL PROTECTED] Date: 2007/08/24 Fri PM 12:53:33 CDT To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Spectrum Repeater CW ID 'er Bipolar Prom Spectrum Repeater CW ID'er Bipolar Prom If the IDer has a PROM then little can and should be done to go another way...a new PROM. Spectrum sells a replacement prom from about $55, which is kind of out of line for a price... but at least it's available. You can find/ask someone with a bipolar prom burner to make a new chip for you. But you have to find the chip and figure out how to map your call sign into the new part. One can also replace a Prom with an Eprom using a small adapter daughterboard, which is a path I've used many times. You need only have the eprom, programmer and set up the programming. Prom daughter/adapter boards run under $20 each... Another option would be to disable the factory ID'er and install an ID-O-Matic or similar ID unit. cheers, skipp Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: Spectrum Repeater CW ID'er Bipolar Prom If the IDer has a PROM then little can and should be done to go another way...a new PROM. Spectrum sells a replacement prom from about $55, which is kind of out of line for a price... but at least it's available. You can find/ask someone with a bipolar prom burner to make a new chip for you. But you have to find the chip and figure out how to map your call sign into the new part. One can also replace a Prom with an Eprom using a small adapter daughterboard, which is a path I've used many times. You need only have the eprom, programmer and set up the programming. Prom daughter/adapter boards run under $20 each... Another option would be to disable the factory ID'er and install an ID-O-Matic or similar ID unit. cheers, skipp Thank you Skipp for the manual for the SCR-77. I can not contact Spectrum. They will not respond to there e-mails and when you call them you just getting a recording saying to leave a message, which I have, still no contact yet. I have also thought about installing another ID'er. What would be my best bet there. I have heard Com-Spec (Communication Specialists) makes a small simple ID'er. 73, Tim
[Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
Ok, these are the numbers on the current PROM: +B8620 DM74S287AN This a ID77 board part # U402 Thanks, Tim --- In Repeater-Builder@yahoogroups.com, Ron Wright [EMAIL PROTECTED] wrote: Comm Spec sells a programmable CW ID for about $60. However, what is the PROM...part number. I might have a programmer for it. Might even have the PROM. 73, ron, n9ee/r From: skipp025 [EMAIL PROTECTED] Date: 2007/08/24 Fri PM 12:53:33 CDT To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Spectrum Repeater CW ID 'er Bipolar Prom Spectrum Repeater CW ID'er Bipolar Prom If the IDer has a PROM then little can and should be done to go another way...a new PROM. Spectrum sells a replacement prom from about $55, which is kind of out of line for a price... but at least it's available. You can find/ask someone with a bipolar prom burner to make a new chip for you. But you have to find the chip and figure out how to map your call sign into the new part. One can also replace a Prom with an Eprom using a small adapter daughterboard, which is a path I've used many times. You need only have the eprom, programmer and set up the programming. Prom daughter/adapter boards run under $20 each... Another option would be to disable the factory ID'er and install an ID-O-Matic or similar ID unit. cheers, skipp Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: [Repeater-Builder] Re: Spectrum Repeater CW ID 'er Bipolar Prom
At 01:55 PM 08/24/07, you wrote: --- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: Spectrum Repeater CW ID'er Bipolar Prom If the IDer has a PROM then little can and should be done to go another way...a new PROM. Spectrum sells a replacement prom from about $55, which is kind of out of line for a price... but at least it's available. You can find/ask someone with a bipolar prom burner to make a new chip for you. But you have to find the chip and figure out how to map your call sign into the new part. One can also replace a Prom with an Eprom using a small adapter daughterboard, which is a path I've used many times. You need only have the eprom, programmer and set up the programming. Prom daughter/adapter boards run under $20 each... Another option would be to disable the factory ID'er and install an ID-O-Matic or similar ID unit. cheers, skipp Thank you Skipp for the manual for the SCR-77. I can not contact Spectrum. They will not respond to there e-mails and when you call them you just getting a recording saying to leave a message, which I have, still no contact yet. I have also thought about installing another ID'er. What would be my best bet there. I have heard Com-Spec (Communication Specialists) makes a small simple ID'er. 73, Tim Or bypass the entire controller and use a low end NHRC or ICS controller to do it all.
