Here are some pixs of N2PK VNAs (click on each to enlarge):
W7AAZ
W4ZCB #1
N2PK
GM3SEK
GM4PMK
AC6AO
KE9OA
OZ9MO
OZ1DUG
AG4AY
KD4PBJ
AE4IC
G6AK
OZ1PIF
SM0CFO+SM6PXJ
W8WWV
W7IUV
VK3IL
W8AEF
VK3YC
G7WAS
EA1CYX
G0TLE
G4AXX
K7TJR
KF4BQ
M0WWA
OM3LZ
US4LV
VE3MM
VK2TIL
K1TRB
W6WO
W4KIT
VE3IVM
N4UA
W8LI
DL2BZE
BA3CE
GW8IZR
VK6APH
Peter
WB9JPS
K8VLY
JA9MAT
AE1S
W4ZCB #2
N2PK USB VNA w/ Test Set
VE3IVM #2
W8AEF #2
AE6CR
K4KV
Here is a unique pix of an N2PK VNA being used in Antarctica by WB3EFT. Bob says
"See attached picture of your VNA being used to measure
antenna impedance in the field in Antarctica.
This picture was taken from one of the remote Automatic
Geophysical Observatories, which dot the plateau.
I was part of the annual service team, and also worked
with our HF radio. I suspect I was the first person to ever
characterize the HF antenna accurately.
It worked great!"