2024-05-15 Digikey Order
- Daniel Puratich
Intro
Getting order in before comp, Digikey only one will ship in time:
Items
1.3GHz Filters
quantity: one
why not: all these are rlly expensive on Digikey bc it’s an oddball band, will look to cavity this one instead especially bc it’s just one needed for ground side ?
2.4GHz Filters
quantity: two
four would be nice for both on gemini but these r rlly expsnive.
specs:
M and F SMA conns
link:
Attenuators
why: I wanna be able to not get my adc overloaded when I’m probing the RF scheme at competition
specs: not worried about power dissipation, rx only application
quantity: 2x of these so i can do 10db and 20db attenuation
link:
panel mount SMA connectors F
specs
I need it to have dielectric on the end to avoid impedance mismatch for 2024-05-17 Filter Design
F is most commonly used here
link:
quantity 6x
at most we could build three filters, two SMAs each
ufl to SMA adapters
what: to and from adapters
IPEX/UMCC MHF 1/U.FL
for the EP2 dual
https://electronics.stackexchange.com/questions/317816/difference-between-hirose-u-fl-and-ipex-connectors compatible with UMCC
SMA F
to go to 2.4ghz filter M port
why: so I can add an SMA filter drone side
quantity: four
two for ground, two for air
link:
ufl to SMA adapter
what: the opposite inversion for after the adapter to connect to antenna on airside
SMA M
PEX/UMCC U.FL
quantity: one,
only one needed on air, ground already has proper adapters to make this solve
why: i looked if we could get new antennas for sma from digikey but it doesnt rlly solve cost wise
link:
12in coax SMA cables
specs: doesn't have to be that quality, 12inch seems about right, can daisy chain em as needed
why: if I wanna install larger filters ima need for coax or to help with routing
link: https://www.digikey.ca/en/products/detail/te-connectivity-linx/CSE-SGAM-305-SGAM/14633985
quantity: four