consejo antena

[pocholo]

hola Creo que este es el sitio para lo que quiero saber, me gustaria comprar una antena para escuchar la banda aerea civil y militar que me sirva para base y movil que me recomendais???????
gracias y saludos

[FOXSTAR]

Hola te dejo unas cuantas muy efectivas y polivalentes.saludos.FOXSTAR

ANTENAS DIVERSAS PARA BANDA AEREA DE ALTO RENDIMIENTO

Diamond D777 (D-777) High Gain 120/300MHz Air Band Antenna
http://www.rocketradio.co.uk/diamond-d7 ... 1245-p.asp
Receiving frequency:VHF 120MHz /UHF 300MHz air bands
Gain:3.4dB(VHF),5.5dB(UHF)
Type:2 x 5/8 wave (300MHz) 5/8 wave (120MHz)
3 x Ground Plane Radials
Impedance:50ohm
Length:approx.1.7m
Weight:1.0kg
Connector: SO239 (takes normal PL259 plug)
Rated wind velocity:60m/sec.
Mast diameter accepted:30mm to 62mm



MAG-108 Flugfunk Mobilantenne
http://www.funktechnik-grenz.de/e_shop/ ... 608q0n66th
Technische Daten


Frequenz 108-550 MHz
Typ 1/4 λ
Gewinn 0 dB ref. to λ/4 whip
Max. Leistung 100 Watt
Material Edelstahl 17/7 PH
Anschluss PL-259 Stecker (UHF-male)
Länge ca. 67cm (variabel je nach Abstimmung)
Gewicht ca. 70g

GP-108/136 Flugfunk Stationsantenne
http://www.funktechnik-grenz.de/e_shop/ ... 608q0n66th
Technische Daten


Frequenzbereich RX 108-136 MHz
TX 118-136 MHz
Typ 1/4 Lambda Ground Plane
Gewinn 0 dBd - 2,15 dBi
Max. Leistung 1000 Watt
Material Aluminium
Anschluss PL Buchse
Montage Aufmastmontage für 36-40 mm Maste
auch Seitenmastmontage mit Antennenadapter FT-2 möglich (Option)
Länge 89 cm (Radiale ca. 66 cm)
Gewicht 1,13 kg



AB-PRO-128A VHF Air Band Antenna
http://www.scannermaster.com/AB_PRO_128 ... 541266.htm
VHF AIR BAND ANTENNA

The AB-PRO128A is a professionally designed VHF air band antenna which has been 'optimised' for the 118-138MHz VHF Air Band. Many aerials claim to cover the 20MHz Bandwidth with Low VSWR, but tests have shown that most of them have very poor VSWR over this range, even if they cost much more than the PRO-128A!!

SPECIFICATIONS:
• CONNECTOR: BNC 50 Ohm
• RX/TX BAND: 118-138MHz
• TX POWER: 25W RF Max
• LENGTH: 194mm
• VSWR: 1:1 @128MHz

Omni 118-137MHz Airband Antenna
http://www.scannermaster.com/Omni_118_1 ... 541271.htm
ELECTRICAL DATA
Frequency Range: 118-137MHz
Bandwidth: 19MHz
Gain: 2, 15 (0) dBi
WSWR, typical: 1,5:1
Radiation: Omni directional
Beam width, vertical: 80 degrees
Polarization: Vertical
Nominal impedance: 50 ohm
Maximum Power 200 W
Connector: N Female
DC ground: Yes

MECHANICAL DATA
Material, Antenna: Fiberglass and brass
Material, Mounting bracket: Aluminum and steel
Total length: 55.5 in
Maximum Wind: 55 m/sec without ice
Weight w/o bracket: 0,6 kg
Weight bracke

One UHF/VHF Air Omni Model Antenna AIR BAND-ADS-B (SBS-RADAR BOX)
http://www.dpdproductions.com/page_vhf_air.html

Gain: 3 VHF 4 UHF dBi Pattern: Omni-directional Wavelength: 1/2 Elements: 3 Tuned: 225-400, 118-137 & 138-140 MHz Band: UHF & VHF Air Connector: N Female Cable: RG8X Cable Length: 24" Height: 45" Width: 30" Weight: 2 lb



Maldol AL-500H
http://www.rffun.com/catalog/scanants/1687.html
Scanner antenna is optimized to receive the commercial and government air bands. This rubber duck style antenna provides peak performance from 116-174 and 230-360 MHz. The telescopic whip antenna is 20 inches. It terminates to a male BNC plug.

[pocholo]

Veo que algunas son moviles ¿no? se pueden utilizar para base
Muchisimas gracias compañero

saludos.

[FOXSTAR]

Hola, sobre tu pregunta..hombre con tres radiales de 1/4 de onda podias mirar de adaptar esta antena Maldol AL-500H y si no con un acoplador para estas frecuencias te podrias defender aunque encareceria bastante.saludos.FOXSTAR.

[pocholo]

gracias. intentare de hacer algo sigo un poco perdido con la explicacion pero no quiero ser pesado


saludos.