N9320A-Agilent-Keysight X Siglent SSA3032X  - Page 1
Forum section: electronics / testgear

author: ebclr
author_rank: Super Contributor
timestamp: September 18, 2016, 02:13:23 pm
content: I'm going to order Siglent because is new, and my money only can buy old keisight things, But Siglent isn't 1st classAm i doing the right thinghttp://www.ebay.com/itm/182257668012?_trksid=p2055359.m2763.l2649&ssPageName=STRK%3AMEBIDX%3AIT

author: tefe
author_rank: Contributor
timestamp: September 21, 2016, 03:35:56 am
content: N was designed in Chengdu China, Agilent indeed, but the team dismissed years.S was designed in Shenzhen China, and Siglent is in aggressive, always some bugs though

author: Wuerstchenhund
author_rank: Super Contributor
timestamp: September 21, 2016, 05:10:58 am
content: Why only Agilent or Siglent?http://www.ebay.com/itm/Anritsu-MS8608A-Digital-Mobile-Radio-Transmitter-Tester-7-8GHz-w-08-09-CDMA-GSM-/222038596005?hash=item33b28819a5:g:~EEAAOSwWTRW1L~NJapanese quality (i.e. like a tank), more bandwidth, and much better RF performance than any either the N9320A or the SSA3032X.

author: rf-loop
author_rank: Super Contributor
timestamp: September 21, 2016, 08:11:19 am
content: Quote from: Wuerstchenhund on September 21, 2016, 05:10:58 amIt is, as named:Digital Mobile Radio Transmitter TesterMS8608AAnritsu min RBW 300Hz!! Siglent 10Hz and in moster mode 1Hz)60dB:3dB Shape factor 1:15 when Siglent have 1:<5If Anritsu have option 04 then there is RBW 10HzIf buy this kind of equipment it is very important to look what options are installed!I do not know Japanese quality. I have seen truck loads of failed Anritsu made different "not repairable" use as long as work and throw away equipments. Just for recycle.Also noise level is not very good in (this model) Anritsu, Siglent is bit better, depending freq. but still not at all in High End class.Anritsu average noise level -146dBm/Hz (perhaps just as sweet pot value)Sideband noise level is better in Anrizu when look 10kHz - 100kHz from carrier. But if look close carrier..and it is many times very important when example testing signal generators or radio VCO etc. (I do not know but my suspect is that Siglent win near carrier).Sideband noise in this Agilent - Siglent wins easy. Average noise level in Agilent - Siglent wins easy. RBW shape factors. Of course due to full digital IF Siglent wins. Agilent RBW shape factors (-60dB:-3dB) < 1:20 - < 1:15 1kHz - 1MHz When Siglent have < 1:5. Only 10Hz - 300Hz RBW is around same.But, Siglent is not at all dedicated for professional Digital Mobile Radio Tester purpose. For this use, This Anrizu have lot of professional features - of course. So, in this area Anritsu wins this Agilent and Siglent just like 10-0.This named Agilent model loose nearly all if compare with this Siglent. But it is Agilent old bottom end model what is not good in anything. Also it have tiny poor quality low resolution display and resolution lenght is 461 when Siglent have 751 when Anrizu have 501.New Siglent have 3 year normal standard warranty (and expandable to 5 year.)

author: nctnico
author_rank: Super Contributor
timestamp: September 21, 2016, 08:16:40 am
content: Perhaps but with Siglent you never know if it works as advertised or not. I looked at the SSA3000X series as well but since I want a spectrum analyser to work according to it's claimed specs & features I bought a used one from an A-brand. Better safe than sorry!

author: D3f1ant
author_rank: Frequent Contributor
timestamp: September 21, 2016, 09:06:01 am
content: Are later versions (B and C revisions) of keysights basic models any better? Would love to see a 3 or 6 ghz spectrum analyzer shootout.Sent from my SM-J500Y using Tapatalk

author: tautech
author_rank: Super Contributor
timestamp: September 21, 2016, 09:18:03 am
content: We need not worry, the OP has made his decision:https://www.eevblog.com/forum/chat/what-did-you-buy-today-post-your-latest-purchase!/msg1030999/#msg1030999

author: rf-loop
author_rank: Super Contributor
timestamp: September 21, 2016, 09:18:28 am
content: Quote from: nctnico on September 21, 2016, 08:16:40 amWhat are these "claimed" specs?If need calibration certificate with data, just send it to cal lab and buy certificate with full data. then these are not claimed. Then these are proofed. Simple.In my personal use, I know what features I need and what not (this is also important to know). (I do not even buy equipment if I do not know what I need and what not) I have tested every these features what I need and all these works as specified and/or what meets my needs or are better. After this point I can make decision if it pass to my needs. If my needs change later and if equipment what ever do not meet these new needs, then it is time to buy equipment what pass. Simple.

author: Wuerstchenhund
author_rank: Super Contributor
timestamp: September 21, 2016, 09:34:38 am
content: Quote from: rf-loop on September 21, 2016, 08:11:19 amYes, it's called Transmitter Tester because it's a variant of the MS268xA Spectrum Analyzer that was sold for Transmitter Testing. That doesn't change the fact that this is a full Spectrum Analyzer and not just a cell phone tester with built-in Spectrum Monitor.Not too long ago I posted a short review of the 13.2Ghz variant (MS8609A):https://www.eevblog.com/forum/testgear/anritsu-ms8609a-13-2ghz-spectrum-analyzer-short-review-(work-in-progress)/QuoteYes, 300Hz without options (with option 02 it can go down to 1Hz). But max RBW on the Anritsu is 20MHz while on the Siglent it's just 1Mhz - useless for modern wideband signals.But then, the Siglent can't do anything with quadrature-modulated signals anyways.Quote<15:1 (not 1:15) is still pretty good for a high bandwidth SA (the old HP 8566, still considered one of the best SAs ever made, also has a selectivity of 15:1 at max RBW which is 3MHz).What you also ignore is that these figures are for analog selectivity, i.e. in FFT mode the selectivity goes further down, a lot. I'd bet your Siglent only reaches 5:1 in digital mode (FFT).QuoteYes, and what options are actually relevant for the buyer.QuoteWell, I do know Japanese quality very well, and being involved in lifecycle management of large amounts of test gear I also know how durable their kit is in general.QuoteDANL for the Anritsu is <-120dBm to <-124dBm - that is without the optional preamp (option 06). With pre-amp the noise level goes further down to <-137dBm (1Mhz to 2.5Ghz band)!DANL for the SSA3032X is -97dBm to -122dBm without pre-amp and -107dBm to -146dBm with pre-amp.QuotePhase noise is -108dBc/Hz for the Anritsu vs -95dBc/Hz for the Siglent @ 10kHz offset.It is -120dBc/Hz for the Anritsu vs -96dBc/Hz for the SiglentConsidering the large gap in phase noise performance, I very much doubt that at narrower offsets the Siglent will improve enough to outperform the Anritsu.QuoteThe Anritsu is a Spectrum Analyzer with I/Q processing, i.e. it can analyze quadrature-modulated signals. As I said in the review, the label as "Transmitter Tester" is misleading, as it's full lab-grade mid-range SA.The simple point is that if RF performance matters then neither the Agilent N9320A nor the SSA3032X can really hold a candle to the MS8608A. Simple as that.

author: Richard Head
author_rank: Frequent Contributor
timestamp: September 21, 2016, 10:23:50 am
content: I wonder what the tracking generator isolation is like with the new Siglent. The Rigol 815 is terrible.

author: rf-loop
author_rank: Super Contributor
timestamp: September 21, 2016, 12:29:26 pm
content: Quote from: Wuerstchenhund on September 21, 2016, 09:34:38 amI do not know anything about how it is in this named Anritsu but here is how displayed average sideband noise level looks directly in Siglent display. Fact from Siglent. Where is equal data from this Anritsu, so do not need only doubt and believing.(10MHz carrier and upper sideband 0-3000Hz from carrier.)Siglent is free running with its own internal freq ref and signal source use its own internal ref.(Note: Below ~100Hz from carrier it is not clear which one sideband noise level is higher, SSA or Source)