Anyone wanna help with an 8 mile microwave test tomorrow?
Hello, As part of confidence-building, I and one other person are going to attempt an 8 mile microwave transmission @ 5.885GHz tomorrow. TX power will be just +10dBm. 30dBi and 32dBi dishes will be used. Projected RX power is -60dBm. Receiver is sensitive down to about -115dBm, which gives us about 55dB of fade margin before the signal is undetectable. This is the first long-range outdoor test to verify all the previous measurements + theory. Assistance would be good, especially if you have a vehicle which can produce 200W or 500W of 120VAC. Picture taking would also be cool, as would operation of UHF comms for coordination (alignment help). Let me know if you'd like to help. I'll likely leave my place around 11AM and we'll go no longer than 6PM. --Bart
Don't know if you got any takers or not, but I'd be up for this on some weekend that wasn't Easter. I can give you up to 1kw of modified sine wave AC from an inverter, or 4.5kw if I throw the generator in the back of the pickup. Now that I think about it, I'm out next weekend, too (for work). Jobs sure interfere a lot with hobbies... Jeff N0GQ On Sat, Mar 30, 2013 at 8:42 PM, Bart Kus <me@bartk.us> wrote:
Hello,
As part of confidence-building, I and one other person are going to attempt an 8 mile microwave transmission @ 5.885GHz tomorrow. TX power will be just +10dBm. 30dBi and 32dBi dishes will be used. Projected RX power is -60dBm. Receiver is sensitive down to about -115dBm, which gives us about 55dB of fade margin before the signal is undetectable.
This is the first long-range outdoor test to verify all the previous measurements + theory. Assistance would be good, especially if you have a vehicle which can produce 200W or 500W of 120VAC. Picture taking would also be cool, as would operation of UHF comms for coordination (alignment help).
Let me know if you'd like to help. I'll likely leave my place around 11AM and we'll go no longer than 6PM.
--Bart
______________________________**_________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/**mailman/listinfo/psdr_hamwan.**org<http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org>
-- -=jeff=-
I'd love to take part to, but need a little more heads up. I also can bring my little generator, pretty quiet and puts out 1300 watts. I use it for Field Day normally. Where were you going todo this? Sent via radio waves! On Mar 31, 2013, at 1:16 PM, Jeff Francis™ <jeff@gritch.org> wrote:
Don't know if you got any takers or not, but I'd be up for this on some weekend that wasn't Easter. I can give you up to 1kw of modified sine wave AC from an inverter, or 4.5kw if I throw the generator in the back of the pickup.
Now that I think about it, I'm out next weekend, too (for work). Jobs sure interfere a lot with hobbies...
Jeff N0GQ
On Sat, Mar 30, 2013 at 8:42 PM, Bart Kus <me@bartk.us> wrote:
Hello,
As part of confidence-building, I and one other person are going to attempt an 8 mile microwave transmission @ 5.885GHz tomorrow. TX power will be just +10dBm. 30dBi and 32dBi dishes will be used. Projected RX power is -60dBm. Receiver is sensitive down to about -115dBm, which gives us about 55dB of fade margin before the signal is undetectable.
This is the first long-range outdoor test to verify all the previous measurements + theory. Assistance would be good, especially if you have a vehicle which can produce 200W or 500W of 120VAC. Picture taking would also be cool, as would operation of UHF comms for coordination (alignment help).
Let me know if you'd like to help. I'll likely leave my place around 11AM and we'll go no longer than 6PM.
--Bart
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
-- -=jeff=- _______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
participants (3)
-
Bart Kus -
Jeff Francis™ -
Kenny Richards