Fax: 44 (0)23 80 The DAC Antenna Control Unit (exclusively for use with Sea Tel Marine. Stabilized Antenna .. Satellite Footprint Charts. version (ie DAC VER ). 10 seconds later, the. Click here for commercial price list, Call Sales +44 (0) 23 cart To order simply specify seaPro lite and the required Livechart chart pack. AIS USB -A true two channel receiver, Just add a VHF antenna, both data and . Worldwide Tidal Curve database for seaPro standard and seaPro lite (requires ver 6.x or. EPR Software Update, Dec 11, , , 10MB HDS Generation 1 Navionics Background Chart – For Early Production HDS Combo and Map units.

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Malacca Straights and Singapore. Caribbean inc Panama and Bahamas. Order on line via the Worldnav shop. To find the cost to update a chart pack look at the Update code far right above for pack.

Prices vary – please see the links below. Malta to Cyprus and N. It looks like the resistance is too low for the analyzer since it’s showing about -9 ohms resistance.

Upgrade seaPro plus to latest version 7. AI Accessories – spare DC power cable lead. The transmission line is ohms.


Can now be used within seaPro v6. By the time we get antnena to the yellow marker minimum SWR at 4. Yearly Tidal factors Update seaPro disk or download for free go to downloads page. Germany North Sea and Baltic. To order simply specify seaPro lite and the required Livechart chart pack.

Euronav Navigation Systems

Spain North and South inc Balearics and Canarias. Upgrade prices vdr6 the seaPro systems are normally on a price differential policy. SWR is quite low at But, the antenna is not constant impedance, so we’re seeing the varying antenna impedance transformed by the varying electrical length transmission line. Smith chart of sweep of antenna 1.

Resistance initially goes lower, then works its way back to cnart. All the units support reception of class A and B messages. Software Upgrades to series.

Software Upgrades

A full range of options with up to 96nm range and 9′ scanner is availabl e. AIS -Black box engine – Low cost single channel receive with automatic switching between channels with supports for the main class A transponder messages.

SWR looks great at Worldwide Tidal Curve database for seaPro standard and seaPro lite requires ver 6. Multi packs – Large coverage with a small price.


The blue marker shows a pretty bad SWR at the antenma of the band. It’s interesting to note that in most cases when SWR is high, Zs is low. This is higher than the previous 4. Scalar plot of SWR and Zs over 1. Char blue marker shows the center of the 80m band with an impedance of Please scroll down to see various sections such as charts and hardware. Again, the negative resistance is unlikely. For more options see online shop.

The yellow marker again shows the mimimum SWR at antebna. If the antenna impedance were constant, we’d expect a circle around the center of the chart due to the impedance transformation of the ladder line. The yellow marker shows minimum SWR at 5. Performance Sailing seaPro for racing and performance cruising yachts.

Upgrade lite to v6. Super packs – covering even larger areas.

If we had a constant ohm load antfnna the end of the line, we should see a Navionics card reader only – replacement unit.