RF Spectrumlyzer - USB Spectrum Analyzer for only $69 - Page 1
Forum section: electronics / testgear

author: huanfong
author_rank: Newbie
timestamp: March 28, 2016, 02:50:15 pm
content: An affordable USB Spectrum Analyzer operating from 24MHz to 1766MHz for only $69.00.http://www.jentechengg.comhttp://www.ebay.com/itm/RF-Spectrumlyzer-USB-RF-Spectrum-Analyzer-1-8GHz-/272182129847?hash=item3f5f51b4b7:g:bukAAOSwh-1W6gxRThis is an extremely handy tool for development and troubleshooting of RF and EMI/EMC related issue. It comes with both a Whip antenna for radiated measurement and a RF adaptor for conducted measurement.

author: Fraser
author_rank: Super Contributor
timestamp: March 28, 2016, 03:11:36 pm
content: It would appear to be just a cheap DVB TV dongle that sells for around $15. These are used with free SDR spectrum analyzer software.The pictures clearly show the DVB logo on the units case and it comes with the usual free (read pretty useless) magnet mount whip antenna.Or am I missing something that adds value to the advertised item? New specialist software perhaps?Fraser

author: logdata.pl
author_rank: Newbie
timestamp: March 28, 2016, 03:12:35 pm
content: No... simple dvb-t sdr tuner...Wys?ane z mojego GT-P5100 przy u?yciu Tapatalka

author: huanfong
author_rank: Newbie
timestamp: March 28, 2016, 03:24:40 pm
content: Yes, it comes with a specialist Windows software that converts the DVB dongle into a real USB Spectrum Analyzer. It provides the usual functions of the Spectrum Analyzer such as Max Hold, Memory Trace, Limit line, Marker, etc. This makes it an extremely affordable tool for any hobbyist working on RF hardware.

author: mswhin63
author_rank: Frequent Contributor
timestamp: March 28, 2016, 03:33:39 pm
content: Also seems to be the RTL820. The RTL820+ has better specs, surprised they are not using that.I think though you are paying for the software which can be a reasonable cost, but it would need to have some really good features to leap above some Open Source software that is already available.

author: Wuerstchenhund
author_rank: Super Contributor
timestamp: March 28, 2016, 03:45:22 pm
content: Quote from: huanfong on March 28, 2016, 03:24:40 pmInteresting:http://www.jentechengg.com/?page_id=143"Jentech Engineering Pte Ltd is being set up by a group of experienced Engineers with more than 15 years in R&D. We are committed to develop test equipments and products that is affordable for all Hobbyist and Engineers in their quest for inventions."https://www.sgpbusiness.com/company/Jentech-Engineering-Pte-LtdJentech Engineering PTE Ltd2 Kallang Avenue#05-14CT HUBSingapore 339407Apparently that's just a letterbox address (almost 400 other businesses at the same zip code?).That's some red flags right there.And am I the only one thinking that 'huanfong' is somehow involved with the manufacturer? The wording of his postings sounds a lot like a sales pitch.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: March 28, 2016, 04:02:29 pm
content: He is the one selling them at least.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 28, 2016, 05:44:51 pm
content: $8:http://www.ebay.com.my/itm/USB2-0-Digital-DVB-T-SDR-DAB-FM-HDTV-TV-Tuner-Receiver-Stick-RTL2832U-R820T-/272017744759?hash=item3f55856377:g:5SQAAOSw5ZBWIGuEdiy:http://hackaday.com/2012/03/20/software-defined-radio-from-a-usb-tv-capture-card/thats 15 days of engineering..(hijacked)

author: Carrington
author_rank: Super Contributor
timestamp: March 28, 2016, 06:09:15 pm
content: Nothing new, as we already know:http://www.rtl-sdr.com/I've seen a lot of designs using the si4313, it only covers from 240 to 960MHz, but it has a RSSI Resolution of +-0.5dB.Datasheet:https://www.silabs.com/Support%20Documents/TechnicalDocs/Si4313.pdfBTW, someone knows where one can find the RTL2832U datasheet?