Update 2021 : The JC-3s tuner is not in production at this moment.
We will investigate if it is possible to start producing again.
Highlights:
1: This tuner tunes almost everything. On the low bands your wire should be a little longer for better performance
2: Super performance due to smaller capacitors steps.(9pF)
3: 3,5 - 52 Mhz. ( 160 meter possible with long wires but not supported)
4: Direct control from most models of Icom and Kenwood
5: This tuner you can use on any radio with the control box (included)
6: Extremely good performance for mobile operation of small balcony antennas.
7: 50 EEprom memories (so no battery inside)
8: Also extremely useful for mobile and portable HF operations
Specifications:
|
Circuit type |
reversible L or Π |
|
Input capacitance step (coaxial side) |
16pF |
|
Output capacitance step (antenna side) |
9pF |
|
Inductance step |
80nΗ |
|
Total capacitance |
1800pF |
|
Total inductance |
20μΗ |
|
RELAYS used |
18 x G2R-1 10A/250V (12V) |
|
Operating frequencies |
3 to 52 ΜΗΖ |
|
Maximum power for antennas > 15μ. |
200W SSB ( 50W AM ) |
|
Minimum antenna length for 200 W SSB |
10M. è 3 to 50 ΜΗΖ |
|
Minimum antenna length for 50 W ΑΜ |
10M. è6to 50 ΜΗΖ) |
|
Recommended tuning power |
10 – 20 W (carrier) |
|
Typical tuning time |
1 – 3 sec. |
|
Maximum tuning time |
6 sec. |
|
Supply voltage limits |
12.5 – 16 V |
|
Maximum supply current |
0.7 A |
|
Typical VSWR (tuner input ) |
< 1.1 : 1 |
|
Maximum VSWR (tuner input) |
< 1.9 : 1 |
|
Protection ( NOT FOR LIGHTNING STRIKE ! ) |
Static discharge |
|
Dimensions |
19 x 10.5 x 9.5 cm
|
What will you get if you order :
JC-3s, Small control Box, 4 pin connector, Manual and good packing.

