Antenna Accessories page
Accessory antennas, amplifiers & cables at competitive prices! (see below and also Prices & ordering page)
Antenna Criterion
1) Reception at this frequency (1090MHz) is fundamentally line of sight.
2) Major influence on reception is height of antenna.
3) Limits to reception are obstacles in path of reception (eg buildings, hills) and curvature of earth.
4) In-line amplifiers are most effective nearest antenna to amplify reception signal at its best.
5) Keep antenna co-ax cable length to a minimum due to loss per metre.
6) Use of magnetic base antenna without a suitable metallic 'ground plane' will give a lesser performance.
Comparative Antenna Performance
The results of our tests shown below were taken over a period of time and averaged to give an indication of relative performances of different antenna configurations.
The site used was ideal, at an elevated location (East of Brisbane) and close to the visible ocean.
Better performance figures at other locations are unlikely to be achieved.
The magnetic base antenna (with 3dB whip) used was that supplied with the basic PGR-1 kit.
The gain settings of the PGR-1 may need to be changed/adjusted between short and long range.
| Antenna | Antenna position | Accessory Components | Range - Nautical Miles | |
| 1 | Magnetic base with 3dB whip | Near PGR-1 | none | 90 |
| 2 | Magnetic base with 3dB whip | About 3 metre above PGR-1 | 6m RG58 extension cable (SEC6) | 130 |
| 3 | Magnetic base with 3dB whip, with in-line amplifier | Near PGR-1 | In-line amplifier kit (ILAK) | 115 |
| 4 | Magnetic base with 3dB whip, on ground plane mounting plate with in-line amplifier | About 3+ metre above PGR-1 (say in ceiling space) | 12m RG58 cable with 1m RG58 fly lead (SEC12) + in-line amplifier (ILAK) at antenna + mounting plate (EAMBK) | 160 |
| 5 | Magnetic base with 3dB whip, on ground plane mounting plate | External, about 8 metre above PGR-1 | 12m RG58 cable (SEC12) + mounting plate (EAMBK) | 130 |
| 6 | Magnetic base with 3dB whip, on ground plane mounting plate | External, about 8 metre above PGR-1 | 15m low-loss/RG213 cable (LLEC15)+ mounting plate (EAMBK) | 145 |
| 7 | Magnetic base with 3dB whip, on ground plane mounting plate with in-line amplifier | External, about 8 metre above PGR-1 | 12m RG58 cable (SEC12) + in-line amplifier (ILAK) at mast head + mounting plate (EAMBK) | 180 |
| 8 | Magnetic base with 3dB whip, on ground plane mounting plate with in-line amplifier | External, about 8 metre above PGR-1 | 15m low-loss/RG213 cable (LLEC15) + in-line amplifier (ILAK) at mast head + mounting plate (EAMBK) | 190 |
For prices, see Prices & ordering page
Antenna, with amplifier, Schematic
NOTES re amplifier kit
Kit does NOT include extension cable, but does include BNC/BNC connector.
DC blocker has a BNC-f connector to accept an antenna cable with a BNC-m plug. (The antenna supplied with the new PGR-1 does not have a BNC plug, but has an SMA-m plug and would require an SMA-f/BNC-m adaptor which is not included in the kit). Separate antennas with BNC plug can be supplied.
The fly lead from the power injector (supplied) to the receiver has a BNC plug. The PGR-1 and SBS-1er have an SMA socket. A BNCfemale/SMA male adapter can be supplied at extra cost- see price list.
In-line antenna amplifier specification
The 18dB amplifier is a fully screened remote powered device which will work in a voltage range of 12-18V DC. Maximum output of 105dB
μV at 35dB IMR. • 950 - 2050Mhz • Passes both DC and 22KHzAmplifier power supply to be kept in a cool environment
Magnetic Base ADS-B Antenna (MD1103a or MD1105a)
Includes 1 metre RG174 co-ax with BNC plug
30mm base
An accessory antenna for use with extension cable, with or without amplifier
Can use on mounting bracket/plate, or steel surface, as external mount antenna
Magnetic Base Airband/FM Radio Antenna (MB127AB)
Includes 10 metre co-ax cable with SMA plug
50mm base, approx 350mm high
An accessory radio antenna for use with SBS-1er
Can use on mounting bracket/plate, or steel surface, as external mount antenna
External Antenna Mounting Bracket Kit (EAMBK)
Suits magnetic base antenna
Does not include upright pole or antenna
Includes U-bolt to mount to pipe (eg TV antenna mount pole) up to 27.5mm diameter
Can be screwed to vertical or horizontal surface
Dimensions (based on ¼ wave) to optimise ground plane effect for antenna
Shows accessory magnetic base antenna (MD1105a or similar) on external antenna mounting bracket kit (EAMBK), mounted on post as external antenna.