Phasing Harness for Yagi or Sidemount Dipole Antenna Stack Arrays
It is important to note that the bandwidth limitation of a phasing harness is 10 % around your centre frequency at -15 dB return loss, less than 1.5:1 VSWR. Broadcasters requiring better return loss or a broader bandwidth should use a power divider.
The ZCG Scalar range of phasing harnesses are assembled from highest quality RG11 coaxial cable and N-Type connectors; male for input and female for output. The junction box features a moulded thermoplastic design for effective water resistance and low passive intermodulation characteristics.
All operate on the same principle of transforming quarterwave sections. These sections are always uneven quarterwave multiples and the multiple is selected to allow correct stacking distance, plus formation of a neat stress relieving loop.
- PDY harnesses suit Yagi’s.
- PDD models are for Sidemount Dipoles.
- The suffix 2 or 4 in the product code signifies either a 2-Way or 4-Way harness.
When ordering, please specify your Transmit Tx and Receive Rx frequencies. Also, for a Yagi harness, we will need advice about the number of elements on each Yagi in the array.
Your harness will be manufactured to exact requirements to suit the standard stacking distances, unless you specify otherwise.
Sidemount Dipoles are generally stacked at 0.7 to 0.8 wavelength separation.
Yagi’s are normally stacked to provide maximum forward gain. The separation distance will vary according to the number of elements and changes from approximately 1.3 wavelengths for 6 element models up to 2 wavelengths for 15 element Yagi’s.
ORDER CODE |
Freq Range |
Type |
Bandwidth |
Connectors |
Power |
PDY22 |
70-85 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDY32 |
148-174 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDY42 |
400-520 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDY52A |
85-100 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDY52B |
100-118 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDYA2 |
Air 118-136 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDY62 |
520-800 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
50 W |
PDY82 |
800-960 MHz |
2-Way Yagi |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
50 W |
PDY24 |
70-85 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDY34 |
148-174 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDY44 |
400-520 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDY54A |
85-100 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDY54B |
100-118 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDYA4 |
Air 118-136 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDY64 |
520-800 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
50 W |
PDY84 |
800-960 MHz |
4-Way Yagi |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
50 W |
PDD22 |
70-85 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDDA2 |
Air 118-136 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDD32 |
148-174 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
500 W |
PDD42 |
400-520 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
50 W |
PDD62 |
520-820 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
50 W |
PDD82 |
800-960 MHz |
2-Way Dipole |
10%, <1.5:1 |
N-Male IN, 2 x N-Fem OUT |
50 W |
PDD24 |
70-85 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDDA4 |
Air 118-136 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDD34 |
148-174 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
500 W |
PDD44 |
400-520 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
50 W |
PDD64 |
520-820 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
50 W |
PDD84 |
800-960 MHz |
4-Way Dipole |
10%, <1.5:1 |
N-Male IN, 4 x N-Fem OUT |
50 W |