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Overview


Repeater Foundation


PI1BER (APRS digi)


PI1BOZ D-Star


PI2BOZ 70cm


PI3BOZ 2m


PI6BOZ ATV


Photos


D-ATV


Links



2 meter repeater PI3BOZ

TX frequency
RX frequency
Repeater Shift
CTCSS (subaudio)
Modulation
Channel
Locator
Outputpower
Antenna gain
Antenna heigth
Polarisation
Sensitivity
145.625MHz
145.025MHz
600 kHz
88.5 Hz
F3E 2.5kHz deviation
r3x
JO21DL
10 watt
0dBd
55m NAP
Verticaal
0.25uV at 12dB sinad
Since 1 januari 2010 can the 2 meter input of the repeater upened by subaudio.
To open the repeater you need to add 88.5 Hz subaudio to your modulation.

Picture of the repeater :

On the right picture the six cavities are being adjusted when the frequency was changed.

Measurements on the 2 meter antenna

A HP8591 Spectrumanalyser is coupled directly to the de 2 meter antenne to see what kind of signals there are at the input of the repeater. Maybe it is possible to understand the cause of the intermodulation.

On the left,PI3UTR puts a -80dBm down ; on the right DAB signals.


On the left G4 GSM (800Mhz) and on the right G2 GSM (900MHz).

Measirements outside with a log-periodic antenna of WA5VJB


On the left DAB broadcast ; on the right G2 GSM (900MHz).


On the left G4 GSM (800Mhz) and on the right G2 GSM (900MHz).


1800MHz GSM signals


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