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| Used spectrum analyzer buyer's guide |
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| DaJMasta:
--- Quote from: usagi on February 17, 2017, 06:20:59 am ---the sitemaster 331 prices seem to be all over the place. $700 - $3000. what's up with that? there seem to be like 41,000 variants of the 331. --- End quote --- Yeah, I would focus on the 331D variant, it seems to be around that $1000 pricepoint pretty commonly and is usually sold with a color screen (which is actually an option on most 331 models... oddly). The pricing variation is probably partly due to the number of variants and options for them, but just the confusion around all of the versions - I think it's been in production in one model or another for quite some time. Maybe the Anritsu MS2711 is worth adding too, seems to be sold around the same price. |
| nctnico:
--- Quote from: usagi on February 17, 2017, 01:13:41 am --- --- Quote from: nctnico on February 16, 2017, 10:49:39 pm ---I'm missing the Advantest R3131 (320x240 monochrome display) and R3132 (640x480 color display) from the list. They are both not terribly expensive and not very heavy. Also an Advantest R3477 Signal Analyser may turn up on Ebay every now and then which is a PC based spectrum analyser with 1Hz RBW, 15.4GHz range and good performance at the price of being big and noisy. --- End quote --- is the average ebay price for working R3131, R3132, and R3477 under $1000? i was unable to find any. i am sure they can be had for bargain price compared to original MSRP but once you go north of $1200 you might as well start looking at a brand new siglent ssa3021x. --- End quote --- AFAIK you should be able to get an R3131 for much less than $1000 all day long. R3132 will take some haggling and the R3477 is probably closer to $2000. All these SAs work to at least 3GHz where with the Siglent SSA3021X you have to see if they remain hackable or not (and the firmware doesn't seem to be finished yet anyway). Still the Siglent SSA3021X is mighty tempting when spending around $1500 on a spectrum analyser. |
| tautech:
--- Quote from: nctnico on February 17, 2017, 06:09:39 pm --- --- Quote from: usagi on February 17, 2017, 01:13:41 am --- --- Quote from: nctnico on February 16, 2017, 10:49:39 pm ---I'm missing the Advantest R3131 (320x240 monochrome display) and R3132 (640x480 color display) from the list. They are both not terribly expensive and not very heavy. Also an Advantest R3477 Signal Analyser may turn up on Ebay every now and then which is a PC based spectrum analyser with 1Hz RBW, 15.4GHz range and good performance at the price of being big and noisy. --- End quote --- is the average ebay price for working R3131, R3132, and R3477 under $1000? i was unable to find any. i am sure they can be had for bargain price compared to original MSRP but once you go north of $1200 you might as well start looking at a brand new siglent ssa3021x. --- End quote --- AFAIK you should be able to get an R3131 for much less than $1000 all day long. R3132 will take some haggling and the R3477 is probably closer to $2000. All these SAs work to at least 3GHz where with the Siglent SSA3021X you have to see if they remain hackable or not (and the firmware doesn't seem to be finished yet anyway). Still the Siglent SSA3021X is mighty tempting when spending around $1500 on a spectrum analyser. --- End quote --- Qualify this remark please. |
| nctnico:
--- Quote from: tautech on February 17, 2017, 07:08:47 pm --- --- Quote from: nctnico on February 17, 2017, 06:09:39 pm --- --- Quote from: usagi on February 17, 2017, 01:13:41 am --- --- Quote from: nctnico on February 16, 2017, 10:49:39 pm ---I'm missing the Advantest R3131 (320x240 monochrome display) and R3132 (640x480 color display) from the list. They are both not terribly expensive and not very heavy. Also an Advantest R3477 Signal Analyser may turn up on Ebay every now and then which is a PC based spectrum analyser with 1Hz RBW, 15.4GHz range and good performance at the price of being big and noisy. --- End quote --- is the average ebay price for working R3131, R3132, and R3477 under $1000? i was unable to find any. i am sure they can be had for bargain price compared to original MSRP but once you go north of $1200 you might as well start looking at a brand new siglent ssa3021x. --- End quote --- AFAIK you should be able to get an R3131 for much less than $1000 all day long. R3132 will take some haggling and the R3477 is probably closer to $2000. All these SAs work to at least 3GHz where with the Siglent SSA3021X you have to see if they remain hackable or not (and the firmware doesn't seem to be finished yet anyway). Still the Siglent SSA3021X is mighty tempting when spending around $1500 on a spectrum analyser. --- End quote --- Qualify this remark please. --- End quote --- AFAIK the last firmware update fixed the wonky results some people got from using the tracking generator but that also made the sweeps a lot slower (see: https://www.eevblog.com/forum/testgear/siglent-ssa3000x-spectrum-analyzers/msg1071366/#msg1071366 ). This is at least one issue that needs attention. |
| usagi:
--- Quote from: DaJMasta on February 17, 2017, 05:58:54 pm --- --- Quote from: usagi on February 17, 2017, 06:20:59 am ---the sitemaster 331 prices seem to be all over the place. $700 - $3000. what's up with that? there seem to be like 41,000 variants of the 331. --- End quote --- Yeah, I would focus on the 331D variant, it seems to be around that $1000 pricepoint pretty commonly and is usually sold with a color screen (which is actually an option on most 331 models... oddly). The pricing variation is probably partly due to the number of variants and options for them, but just the confusion around all of the versions - I think it's been in production in one model or another for quite some time. Maybe the Anritsu MS2711 is worth adding too, seems to be sold around the same price. --- End quote --- looks like the S331D is an antenna analzyer only - only SWR, cable loss, TDR, etc. there is no spectrum analyzer feature in the documentation and there does not appear to be an SA option for the S331D. |
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