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| Anritsu MS8609A 9kHz - 13.2GHz Spectrum/Signal Analyzer - Short Review |
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| tmbinc:
(note 5dB vs. 10dB scale) The pre-amp afaik only covers a low-frequency range up to 3GHz (can't find the exact number). What happens if you enable the pre-amp is that the UI shifts down the readings (i.e. scale) by the amplification of the pre-amp (to compensate/make readings correct), so you see the noise floor being reduced. However only in the actual area where the pre-amp is actually amplifying (<3GHz or whatever) the readings will be correct. That likely explains the case where the higher range noise drops visibly - but as the signal is not amplified, the SNR in that range will not be actually better. The device should show UNCAL in higher regions but I'm not in front of my device right now so I can't check. The screenshots I did via PCMCIA -> CompactFlash adapter -> SD Card adapter -> MicroSD adapter -> microSD card. Feels like a Matryoshka doll adapter but actually works. Unfortunately my instrument doesn't have ethernet enabled. It also doesn't have the power sensor, which is marked as "standard/always installed" in all Anritsu documents, but it's not active (or not present). I've started to disassemble the firmware, found the menu description structures, and there's a special maintenance menu that allows to enable/disable options, but I failed to actually find the path that gets me into this module. (I could patch the software but the flash is not easily accessible so I didn't want to go that route) I _think_ there's a special key combination you have to press probably on the system screen. If anyone has a service manual or any additional information, that'd be awesome. |
| eevcandies:
You have the power meter...activate the W-CDMA module , then press TX TESTER--big button, then at bottom of menu goto page 2, at bottom of page 2 , select "POWER METER" . This is also the same for EV-DO module (perhaps same for all modules). MS8608A-08/MS8609A-08 Pre-Amplifier Outline :Built-in pre-amplifier with 20dB gain Gain :Gain 20dB(Typ.) Noise exponent: 6.5dB(Typ.);Input frequency <= 2GHz Noise exponent: 12dB(Typ.);Input frequency > 2GHz Frequency range:100kHz ~ 3GHz Average noise level: RBW 300Hz,VBW 1Hz,ATT 0dB <= -137dBm+2.0xf(GHz) ;1MHz ~ 3GHz |
| eevcandies:
Some extra tidbits of information: https://manualzz.com/doc/21046659/mx268x30a-mx860x30a-product-introduction-wireless-lan-mea... this might be useful for remote programming: https://manualzz.com/doc/13932384/using-matlab-with-anritsu-ms2690a--ms2691a--and-ms2692a-s... |
| eloyex:
hello friend, do you still have the ms8609 ? is still working fine ? no regrets so far ? I am about to buy one for WIFI testing and WIFI related job , plus some analog traditional RF measures and would like to hear/comfirm your ideas about that unit. I was looking for a low cost spectrum up to 6.2ghz, but this is way better range … what do you think ? any new feedback about this unit ? Eloy / Miami |
| eloyex:
hi may I know how much you paid for the unit ? it was LOADED with features !!! I am about to buy one and need to know how is the price point on this product .. thks !! |
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