[HamWAN PSDR] Fwd: [wl2k--emcomm] High speed network, Winlink products

[Griff]

For a 100kbps link on 70cm, check out the inexpensive ($25) "moteino" 
digital 70cm transceiver at http://lowpowerlab.com". These have only a 
0.1 watt FSK transmitter, with settable data rates between about 9600bps 
and 600kbps, using signal bandwidths from about 10khz to 600khz. I see a 
range at 70kbps of about 1/4 mile between two mobile antennas. For 
longer range, I will soon receive an inexpensive ($50) Chinese 3 to 5 
watt power amplifier. Search ebay.com for " 433mhz fsk radio  amplifier 
3-5W" and you'll see them. There is also an inexpensive 7-watt power 
amplifier from  http://www.minikits.com.au/70cm-7W-Amplifier. There is 
also a more expensive ($215) 30 watt amplifier, 7025PA, from
Down East Microwave 
(http://fwfvq.tehfm.servertrust.com/category-s/1836.htm). Down East 
Microwave engineer says it should work fine with FSK, but I haven't 
tried it.

Griff W5VWP

On 01/21/2015 04:01 PM, Tom Hayward wrote:
> On Wed, Jan 21, 2015 at 3:52 PM, John D. Hays <john at hays.org> wrote:
>>
>> Pointing the dish could be accomplished over a much lower rate and more robust radio link.
>
> Sure. My hypothetical also assumes no link redundancy. So far HamWAN
> has redundant links, so this wouldn't be an issue.
>
> But let's explore the robust link option... Do you know where we might
> get a medium-speed link? 100kbps over UHF would be ideal, but I don't
> have the hardware to do it. ;-)
>
> Tom KD7LXL
>
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