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Electronics => RF, Microwave, Ham Radio => Topic started by: kiheiman on September 08, 2017, 05:57:21 am

Title: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: kiheiman on September 08, 2017, 05:57:21 am
A vendor shipped me a 4671 box by mistake (I was supposed to get a 4661).  Does anyone know of a manual for the 4671?  I am trying to get it to work with my existing 4661 to measure NPR when the units are back to back.  It seems that the NPR is not very good when I set the 4661 to 0 dbm out (about -67 dbm).  However, if I set the 4661 to -10 dbm output and the input to the 4671 to -10, then I can get a NPR of about 77 - which seems to be in the ballpark of what I should be reading.  Not sure if my control settings are correct.  I have a manual for the 4661, but it only briefly mentions the 4671.

Regards
Clint
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: bjcuizon on September 10, 2017, 01:50:34 am
Do you need a user/operating manual or the service manual?
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: bjcuizon on September 10, 2017, 01:58:25 am
If you need the service manual there are plenty of sites to search from. Just check out this thread:
https://www.eevblog.com/forum/repair/repair-documents-and-links-sticky-me-please-mods/ (https://www.eevblog.com/forum/repair/repair-documents-and-links-sticky-me-please-mods/)
Maybe it will help you. ;)
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: kiheiman on September 10, 2017, 04:40:36 pm
A service manual or user manual would be nice.  I need to figure out how to use the unit with my 4661 noise generator.

Regards
Clint
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: kiheiman on September 10, 2017, 04:51:08 pm
I have done quite a few searches and could not find anything.  I did find a manual for the 4661 companion unit and was able to purchase the manual on eBay.  The Scientific Atlanta user manuals are very good and include a full set of schematics.

Regards
Clint 
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: bjcuizon on September 10, 2017, 07:30:49 pm
Alright, I'll try to find it then.
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: bjcuizon on September 15, 2017, 11:44:10 pm
The latest I found was this one here: http://www.etestmanuals.com/Search.aspx?Search=Scientific%20Atlanta%09%09IF/Baseband%20Analyzer%20Instruction%20Manual%20w/%20Schematics.%204671 (http://www.etestmanuals.com/Search.aspx?Search=Scientific%20Atlanta%09%09IF/Baseband%20Analyzer%20Instruction%20Manual%20w/%20Schematics.%204671)
It is the one on the top ;)...and unfortunately it costs 100 bucks and they only have one in stock :(
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: kiheiman on September 17, 2017, 07:21:26 pm
Thanks.  I contacted the vendor and they cannot find the manual.

Regards
Clint
Title: Re: Scientific Atlanta 4671 Baseband Analyzer Manual
Post by: bjcuizon on September 18, 2017, 06:16:08 am
I'm sorry to hear that. Have you asked the seller if he has the manual or if he knows anyone that has at least a copy of the manual?