I was looking at this as a potential kit, the ten-tec VNA, and at the order price of $59 it was a bargain.
Now I see that is just for the bare PCB board, so I'd need the other components.
I don't have ARRL membership either, so cannot read the article in QEX.
Does anyone have info on these VNAs as far as performance and kit possibilities?
www.tapr.org/kits_vna.html
All of the various displays and plots are derived from these four measurements:
S21 Magnitude: gain or loss of two-port network from input to output.
S21 Phase: the transfer phase of two-port network from input to output.
S11 Magnitude: return loss of one-port or two-port network referenced to input of the network.
S11 Phase: the phase angle of return loss of one-port or two-port network referenced to input of network.
Specifications
Frequency Range: 1 MHz-100 MHz at full specification. Operational with degraded performance up to 120 MHz and down to 200 kHz.
Resolution:
.1 dB for amplitude measurements
1 degree for phase measurements
Dynamic Range:
in forward mode, 80 dB at lower frequencies
75 dB mid-range and higher frequencies
In reverse mode, -35 dB at lower frequencies
-25 dB at mid-range and higher frequencies
Output Power: nominal +3 dBm (approx. 2 mw) at TRANSMIT connector
Maximum Input Level: +10 dBm (2 V P-P) into TRANSMIT or RECEIVE connector.
Requirements for host PC: Windows 98SE, 2000 or XP. Also requires Windows installer program and .NET 1.1 framework (provided on CD) run time package.
Included with Model 6000 VNA: printed instructions to assist with installation. The latest version of PC software and detailed operating manual are provided on CD. Set of testing and calibration accessories: 1meter & 3meter cables, 10dB & 30dB attenuators, 50ohm load, shorted connector and barrel connector. 100-240 VAC, 50/60 Hz power supply with removable cord.
Now I see that is just for the bare PCB board, so I'd need the other components.
I don't have ARRL membership either, so cannot read the article in QEX.
Does anyone have info on these VNAs as far as performance and kit possibilities?
www.tapr.org/kits_vna.html
All of the various displays and plots are derived from these four measurements:
S21 Magnitude: gain or loss of two-port network from input to output.
S21 Phase: the transfer phase of two-port network from input to output.
S11 Magnitude: return loss of one-port or two-port network referenced to input of the network.
S11 Phase: the phase angle of return loss of one-port or two-port network referenced to input of network.
Specifications
Frequency Range: 1 MHz-100 MHz at full specification. Operational with degraded performance up to 120 MHz and down to 200 kHz.
Resolution:
.1 dB for amplitude measurements
1 degree for phase measurements
Dynamic Range:
in forward mode, 80 dB at lower frequencies
75 dB mid-range and higher frequencies
In reverse mode, -35 dB at lower frequencies
-25 dB at mid-range and higher frequencies
Output Power: nominal +3 dBm (approx. 2 mw) at TRANSMIT connector
Maximum Input Level: +10 dBm (2 V P-P) into TRANSMIT or RECEIVE connector.
Requirements for host PC: Windows 98SE, 2000 or XP. Also requires Windows installer program and .NET 1.1 framework (provided on CD) run time package.
Included with Model 6000 VNA: printed instructions to assist with installation. The latest version of PC software and detailed operating manual are provided on CD. Set of testing and calibration accessories: 1meter & 3meter cables, 10dB & 30dB attenuators, 50ohm load, shorted connector and barrel connector. 100-240 VAC, 50/60 Hz power supply with removable cord.