A.H. Systems AK-285R Shielding Effectiveness Antenna Kit
Noise Level
(10 Hz RB) Vt-Vr
S + N
N
Xmtr
Amp
Margin
0 dB Sig
Gen
Dynamic
Range
Preamp
Gain
Dynamic
Range
with
Preamp
1 Watt
Power
Amp
Dynamic
Range with
1W Power
Amp
DRG Horns
1 GHz
-134
18.8
6
6
103.2
37
140.2
2 GHz
-134
24.1
6
6
97.9
38
135.9
5 GHz
-138
28.6
6
6
97.4
39.5
136.9
10 GHz
-135
29.2
6
6
93.8
37
130.8
15 GHz
-130
31.6
6
6
86.4
39
125.4
18 GHz
-130
38.2
6
6
79.8
38
117.8
Noise Level: This is the noise level of an HP 8563E Spectrum analyzer at 10 Hz
resolution bandwidth
Vt – Vr: This is the path loss at 1 meter between the transmitting and receiving antennas.
: This is the signal to noise floor safety margin.
Xmtr Amp Margin: Transmitting amplifier safety margin
0 dB Sig Gen Dynamic Range: This is the resulting system dynamic range of the two
antennas with 0 dB out from the signal generator.
Preamp Gain: this is the typical gain of the preamplifier. The biconical and log periodic
antennas use the typical gain of a PAM-0202 (if using the PAM-0118 add an additional 6
dB increase in dynamic range). The SAS-571 uses the typical gain of the PAM-0118.
Dynamic range with preamplifiers: This is the resulting dynamic range where preamplifiers
are used.
1 Watt Power amplifier: This is the gain in dynamic range using a 1 watt amplifier.
Dynamic Range with 1 watt amplifier: This is the resulting dynamic range when using a
power amplifier.
A.H. Systems inc. – August 2011
REV A
12
