Mag Mount Antenna's Whip Replaced By V-Stub Wire Collinear

FlightAware ADS-B Flight Tracking
10

Tweaked dimensions using simulation software followed by physical trimming. Got improved performance over original design of first post.

Compared V-Stub whip with 52mm optimized whip. Conducted test by swapping the two whips. No changes in any other Hardware/Software. Results below:

27-06-2020_62mm_Lower_Wire_aircraft-8h-R

27-06-2020_62mm_Lower_Wire_message_rate-8h-R

27-06-2020_62mm_Lower_Wire_range-8h-R

 

CLICK ON IMAGE TO SEE LARGER SIZE

V_stub_wire_collinear_vs_52mm_whip-E
V_stub_wire_collinear_vs_52mm_whip-E1250×1168 298 KB

 

Thin (0.5 mm dia) Steel Tie Wire used to make collinear whip with V-stub.
Thin wire can easily be wrapped over threaded stud of magnetic base.

Steel Tie Wire
Steel Tie Wire1089×707 373 KB

 

mag-mount base-b

MEASUREMENTS

20200627_195306
20200627_1953061950×2110 1.89 MB

20200627_195347
20200627_1953471960×2199 2.15 MB

SIMULATION RESULTS

V-Stub-62mm-lower-Geometry
V-Stub-62mm-lower-Geometry565×597 19.3 KB

V-Stub-62mm-lower-Radiation-Pattern

V-Stub-62mm-lower-SWR
V-Stub-62mm-lower-SWR354×528 9.26 KB

 

Simulation Results

 

4 Likes