Cruising Sailors Forum Archive
The simple answer is "the difference in frequencies..."
In Response To: Could someone explain the 'cable loss' math? ()
the higher the frequency, the more lossy the cable appears. WiFi is much higher in frequency (and intentionally low in power) than VHF or the HF you mentioned. Cable loss appears in all those cases, but for the the much higher frequency WiFi signal, those losses are the greatest.
The VHF suffers quite a bit too, but you also gain on the VHF due to the height of the mast.
The USB you mentioned is not RF, but high speed digital... the properties for high speed digital start to appear RF as the speed of the signal is faster and faster, but often shielding and a good matched cable (differential pair) can overcome the length of the cable... to a point.
Messages In This Thread
- WiFi Antennas?
- PortNetworks
- Ron, I went with the "California Micro System".
- Unsecured WiFi
- Wifi vs Aircard
- My WiFi interest is for the Bahamas
- Wifi in Bahamas
- I've been impressed with a new product called The Wirie, so far...
- Could someone explain the 'cable loss' math?
- I Googled "Coax Cable Loss"
- The simple answer is "the difference in frequencies..."
- That is one of the reasons for a "bridge" type unit (like PortNetworks)
- Cable loss/signal loss in Wi-Fi
- Could someone explain the 'cable loss' math?
- Wifi in Bahamas
- Wifi vs Aircard
- Ron, the other side of the solution is
- Ron --have a look at this article on making a Wifi antenna in a recent issue of Ocean Navigator mag
