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Motorola Quik Call

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Trux911

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#1
Hello, I am turning to this forum for help. I am looking for the printed Motorola tone sequence chart for Quik call 1 (2+2) paging. I have seen it before and know it exists. I already know all the tone frequencies in Hz that are used. They are either Tone plans A, B, or Z. I can remember some of the tone pairs. There was the CG group, the MN group, I believe the PK group and I think the LE group. There might be more but I can't remember. All letters represent a single tone off the A,B,Z tone group mentioned above. For example: Under the CG group, Station 1 would be CE-DG, Station 2 would be CE-GJ, Station 3 would be CE-GK, and so on. If anyone has this information or knows where to acquire it, I would appreciate it. If you have further questions, please ask. Thank you.
 

SteveC0625

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Northville, NY (Fulton County)
#3
Hello, I am turning to this forum for help. I am looking for the printed Motorola tone sequence chart for Quik call 1 (2+2) paging. I have seen it before and know it exists. I already know all the tone frequencies in Hz that are used. They are either Tone plans A, B, or Z. I can remember some of the tone pairs. There was the CG group, the MN group, I believe the PK group and I think the LE group. There might be more but I can't remember. All letters represent a single tone off the A,B,Z tone group mentioned above. For example: Under the CG group, Station 1 would be CE-DG, Station 2 would be CE-GJ, Station 3 would be CE-GK, and so on. If anyone has this information or knows where to acquire it, I would appreciate it. If you have further questions, please ask. Thank you.
When I got into the radio business and public safety around 1969, the Motorola Quick Call I (2+2) was still in daily use in much of the country. I have the planning manual for Motorola tone plans from that era, and there is no mention of any plan like this for QC-I implementation.

If there was a plan that assigned specific QC-I tone groups or sub-sets to specific stations, etc., it would almost certainly have to be local in nature. One plan that might fit a large urban/suburban area would likely be usless in smaller suburban/rural communities. I am wondering if it was specific to the geographic area where you were back then.
 

Trux911

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#4
Talkpair, thank you for the link. Great information but unfortunately not the code plan I was looking for.

SteveC0625, I had a copy of a codeplan printed by Motorola and out of an old manual many years ago. This codeplan had specific recommended tone pairs that prevented cross modulation and lowered falsing when using the quik call encoder. Each tone plan (such as the CG group mentioned in my original post) had approx 90 tone pairs listed that were tested by Motorola that would not set off and adjacent tone pair. So if you paged out station 3, station 62 would not also go off for example. These 90 pairs of tones would cover 90 fire departments. And if you toned out the CG all call (8 second single 2 tone) that ended up setting off all departments in the tone group. An adjacent county had more than 90 departments in it and used the MN, and LE tone groups and that gave them 180 + individual 2+2 tones for all their departments.
 

CommJunkie

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#5
If you find it, I'd be interested to see it. My county seems to have followed some kind of coding plan but nothing that makes sense on any tone list I can find.

In my county, all of the stations are two digits. The single-digit stations have a leading zero. So 1 becomes 01, 2 becomes 02, etc.

All of the stations beginning with 0 have the same A tone. All of the stations beginning with 1 have the same A tone, all the way up to stations with 8. (There are no stations in the 90's)

All of the stations ending with 1 have the same B tone, so 01, 11, 21, 31, 41 etc all have the same B tone. All of the stations ending with 2 have the same B tone (02, 12, 22, 32, etc).

When a station closes, or merges, and the station number is left open, if a new station opens they are reassigned a tone set that was already used but had been OOS. For example, stations 69 and 54 merged in my county forming a new station 46. The number 46 had been dormant for quite some time. But they kept the 69 tone, and abandoned the 54 tone. So now the coding plan is a mess.

Problem is, A tones are from the QC-I chart Z series, while the B tones are from the QC-II chart. Makes absolutely no sense to me.
 
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