| Bands | Freqency range | Types of aerials used |
| 50cm | 614 to 622 MHz | Colinear, Log Periodic, Log Periodic Yagi, Quad, Yagi |
| 23cm | 1.24 to 1.3 GHz | Colinear, Quad, Loop Yagi, Yagi |
| 13cm | 2.396 to 2.45 GHz | Bi Quad, Loop Yagi |
| 9cm | 3.3 to 3.41 GHz | Horn, Periodic (Dish), Loop Yagi |
| 5cm | 5.65 to 5.85 GHz | Horn, Periodic (Dish) |
| 3cm | 10 to 10.5 GHz | Horn, Periodic (Dish) |
For UHF bands 50 & 32
Colinear aerial
| Bands | A | B | C | D | E | F | G | Total length |
| 50cm | 473mm | 111mm | 157mm | 236mm | 238mm | 46mm | 31mm | 2.158m |
| 32cm | 315mm | 74mm | 104mm | 157mm | 159mm | 31mm | 21mm | 1.435m |
Return loss measurements of the colinear design - subtract 17 dB from the Return loss displayed. At 615 MHz (50 cm band) the Return loss is 27 dB, or SWR of 1.1 at this frequency.
Photo of Harry ZL1BK with a 50 cm band colinear
Construction notes
Sections A and C (x4) are made from brass tubing 10mm OD x 8mm ID. The brass tubing length given in the table (right hand column) should include an additional cutting allowance when ordering.
The center of the colinear is constructed from a length of RG-213, which has had the outer cover and braid removed. The total RG-213 length is a guide - add enough to solder the center conductor into the N connector.
The shorted stub G is made from RG-178. A slot is cut into the tube A at length F from end of tube, and the centre conductor of the stub is soldered onto the centre of the RG-213, and the shield to the brass A.
The brass tubes should be crimped top and bottom (onto the RG-213) with a hex crimping tool to hold them in position.
23cm broad side colinear aerial
This aerial is made from ten-half wave elements with a PVC insulator at the current point. The reflector is made out of two-millimetre thick aluminium panel. There are six-holes drilled into the back panel to fit six M6x40mm bolts through in to the PVC. One millimetre diameter copper wire to interconnect the copper elements. All of the elements are spaced 45mm from the back panel. A panel-mount N socket is mounted into back plate at the central point. U-balun and feed are made using RG-142 coax with a velocity factor of 0.695.
Return loss measurements
Mkr 1: 1251MHz -12.7dB
Mkr 2: 1280MHz -33.0dB
The 23cm yagi design was made for the frequency range 1240 to 1300 MHz. This is used in Auckland area for receiving ATV on 23cm.
The yagi looks like a small UHF Television aerial when it's mounted.