antena

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kiss marco paul
Posts: 4
Joined: Sat Mar 28, 2015 7:51 am

antena

Post by kiss marco paul » Wed Apr 29, 2015 6:08 am

hello again can somebody tell me if this type of antenna is good or at least perfect for receiving weather sat data from space? :D

this antenna features :

Base station antenna, Mono-band
• Low-gain, Omnidirectional
• Suitable for land and marine service
• Tunable by whip cutting
• Protection from static discharges DC-Ground
• Stainless steel hardware and radials
• Equipped with anodized aluminium bracket for an easy side mast installation
• High quality whip made of brass and copper protected by fiberglass tube

Electrical data
• Type: 5/8λ ground plane
• Frequency range: tunable from 135 to 175 MHz
• Impedance: 50Ω unbalanced
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth at -3 dB = 80°
• Radiation angle: 28°
• Polarization: vertical
• Gain: 1.5 dBd - 3.65 dBi
• Bandwidth at V.S.W.R. 2:1: 5.6 MHz at 135 MHz
• V.S.W.R. at res. freq.: ≤ 1.2:1 at 135 MHz
• Max. power: 200 Watts
• Feed system / position: transformer DC-ground/ base
• Connection: N-female gold plated

Mechanical data
• Materials: Fibreglass, Aluminium, Brass, Stainless Steel
• Wind load / resistance: 55 N at 150 Km/h / 200 Km/h
• Wind surface: 0.05 m2
• Height (approx.): 1730 mm
• Weight (approx.): 1200 gr
• Radial length (approx.): 495 mm
• Mounting mast: Ø 35-54 mm

i m waiting for an answer thank you , and if i can maybe receiving Meteor mn2 ?
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rtlsdrblog
Site Admin
Posts: 2873
Joined: Mon Nov 19, 2012 11:54 pm

Re: antena

Post by rtlsdrblog » Thu Apr 30, 2015 9:49 pm

Well for satellite reception you ideally want one with circular polarization, the one you posted has vertical polarization. It might still work, but the signal could potentially fade in and out during the pass, so reception might not be perfect.

Look up QFH or satellite Turnstile antennas. I don't know of any commercially made ones though, usually it's best to build one yourself.

yo2ldk
Posts: 2
Joined: Sat Apr 25, 2015 8:31 am

Re: antena

Post by yo2ldk » Fri May 01, 2015 11:49 am

cu siguranta nu este buna, receptia va fi ok doar la extreme, adica la aparitia si disparitia satelitului..
am construit un turnstile usor, si merge foarte bine

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