Can you plug a RFEMWSUB3G module on any base unit model? Yes. Some combinations
may make more sense than others, but functionality will be available in
whatever combination you need it to be used. So can you plug a RFEMWSUB3G into
a 433M model? Sure. And what about a 2.4G base unit? You bet. So there is a
natural upgrade path no matter which RF Explorer version you are using today or
planning to use tomorrow.
Is there any reason why there won’t be a WSUB3G base unit alone? The reason is
extra RAM and FLASH needed for the wideband module, the base unit alone has not
enough resources to drive it.
RF Explorer 3G Combo will be the highest end model, well suited for the Pro TV/Media/Audio user with a WSUB1G base unit and
a RFEMWSUB3G expansion module already assembled. This is convenient as the
WSUB1G model exhibits slightly better sensitivity and sweep speed in the UHF
range of major interest of this business area. In this way you can order and
use a WSUB1G device today and expand it later with RFEMWSUB3G, or order it as a
RF Explorer 3G in one single order, whatever is better for your needs. Price
will be the same one way or another.
Pricing
Retail price for RFEMWSUB3G expansion module will be $140.
Full RF Explorer 3G combo units will be available for $269. A simple math shows
this being the same as a $129 WSUB1G base unit together with a $140 RFEMWSUB3G.
Offering such a wide band device at this price tag is a real challenge for all
the involved parts on the chain, and we will do an extra effort to have a
launch offer you can adhere to the first two weeks for an attractive discount.
Preliminary specification
On the down side, as you can see the Average Noise Level is about 10dBm worse
than WSUB1G, and the dynamic range is also a bit shorter than WSUB1G. This is
due to the wide bandwidth internal balun and mixer conversion loss, a design
factor you cannot overrule except by adding extra LNA and filters which will
quickly increase the cost. Nevertheless, this is still comparable or better
than commercial spectrum analyzers in the range of $2000+ and certainly orders
of magnitude better than USB-key products designed to work with computers only.
This is also better than the 2.4G model in the 2.4GHz band.
On the plus side, the Resolution Bandwidth is as good as the WSUB1G model and
that is outstanding, you need to pay $5000+ or more to get any equivalent
performance in the market. You can resolve signals as narrow as 2.6Khz in the
whole band.
In addition to that, this new model comes fully protected for RF entry power up
to +30dBm (1W) which is plenty to carry it over pretty much any place with no
risk of damage due to reasonably strong radiated fields. In comparison, the
WSUB1G model is protected up to +5dBm only so you typically need external
limiter to play safe with strong fields.
Power consumption is a bit higher than other RF Explorer models due to the
extra components, but should still run for 10hs+ or more on a single battery
load.
Some beta users have been testing it for some time already; actually
BloomingtonFPV shared a video with WSUB3G in action already (Thanks Tom!) with
an early firmware version you can see here. Results are in line
with expectations.
Production estimate
While the hardest design steps are already complete, the production and testing
phase is just starting. A lot of specific test design steps are required for
this module to be fully tested before assembly to guarantee quality in the
whole band. As we are incorporating new components from manufacturers we didn’t
work with in the past, we expect to learn about component tolerances, delivery
time and stock as we go. All that adds uncertainty so we cannot reliably plan
for a specific date. Our target is to start offering RFEMWSUB3G at some point
in May, but this is not written on stone, we will keep you updated as we learn
more.
Firmware
We are currently on v1.09 Beta 03 and will probably be in Beta 05 at the time
this product is available for ordering. Make sure you order it only if you are
ok with upgrading firmware as it progresses.
The Windows PC client is still on the works but will come out with some extra
features for all models.
Detailed model map
See below a general model map to easily identify the actual scope of WSUB3G
when compared to earlier offering.
Any question, let me know anytime.
Cheers. Ariel
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