L-band Patch Antenna from Phil Williams

Note- This is a preliminary website based on prototype.

Well, unfortunatly the first batch received are all faulty!

The manufacturer has been advised. I'll keep

this webpage updated.

21st May. Phil W.:-(

L-band Patch antenna for Inmarsat reception.

Right-Hand Circular Polarisation

GPS-type preamp with inmarsat band filter specially fitted

to help reject GPS and GSM Signals.

Built in LNA means that this is all you need to receive Std-C is this antenna and a

receiver capable of SSB at 1541Mhz.

The signals below were received on this patch sitting on a paint pot lid

connected to an IC-R20 handheld and SDR-IQ 11th May 09

Runs off 5vdc 5mA fitted with 5m of coax and a BNC plug.

Power inserter required I make these with 12v to 5v

regulator built in and reverse voltage protection - see picture.

Price and availability TBA but Patch and Power inserter together

probably under £40 inc P+P to UK

Paypal preferred

	Metop - A 1544.500 (vertical lines are local 'birdies')
	Inmarsat- D 1537.870
	Inmarsat-C 1541.450
	Inmarsat Aero
	Std-C using the patch and IC-R2500
	8 to 30v dc in, places 5vdc at on BNC socket Short cct protected and reverse voltage protected F-type is DC blocked to receiver. Also supplied is F to BNC or F to N-Type. Please Specify preference. £10 inc adapter
	For Info:- 9-ele Yagi for 1500Mhz works well for Inmarsat with EME103 preamp.

Thanks for reading, if you are interested please email me phil - at - trehawsa.com

and I'll keep you informed about the shipment

Phil Williams N.Cornwall

Disclaimer: Inmarsat decoder software should only be used to receive Inmarsat-C transmissions for which you are licensed. Reception of other messages may not be legal in your country, and therefore your local laws should be checked and complied with.

Weather forecasts, navigation warnings and safety alerts are intended for general distribution.