From what I see the differences in models is mostly in the power
handling of the front end. There are other cell phone features
between model variants, but, those do not concern me too much. I am
trying to trace out the mother board module interconnects. I guess I
just do this for the challenge.
I have bought a few in the $100.00 range. For me to buy one it must
have option 006 and 010.
Just wish I could find the component level info on this to try and
adapt it better for ham use.
73
Glenn
WB4UIV
On 11/15/2018 4:05 PM, Robert G8RPI via
Groups.Io wrote:
Which 8922? There are several suffix letter variants. Some
commonality with the 8920 and 8924 but not much.
As a dedicated digital cellphone test set it has poor mass and
volume to functionality. Some models have a spectrum analyser
(for some it's option 006) which is useful but has a maxium span
of 10MHz? Other than that it's a CW signal generator going to
1GHz.
I hope it was cheap, they cost around $40,000 new but I would
not pay more than a couple of hundred for one. They do have some
useful bits depending on model. I don't like breaking modern
equipment but hve to admit breaking a couple. They provided a
spectrum analyser upgrade for a 8920A, new monitor for a 8920B
and parts for a RF input module repair on another 8920B plus
some switched attenuators connectors etc.
The smilar looking 8924C is much more useful as it's basically
a 8920B with spectrum analyser option and a CDMA adaptor in a
big box. The difference is it retains all the analog functions
of the 8920B.
Robert G8RPI.
--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
