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HP 11715AAM/FM Test Source HP 11715A Product Details
The Agilent 11715A AM/FM test source provides very flat, wide-bandwidth, and low-distortion amplitude - or frequency-modulated RF signals. Designed primarily for performance tests and adjustments of the Agilent 8901A/B modulation analyzer and Agilent 8902A measuring receiver, it will also serve as a high-quality modulated test oscillator where its frequency ranges apply. The major components of the 11715A are a low-noise voltage-controlled oscillator (VCO), 2 digital dividers, and a double-balanced mixer. The VCO is the primary signal source, with a typical frequency range of 330 to 470 MHz at the FM output. FM is produced by directly coupling the external modulation source to the VCO's tune input, providing very wide bandwidth modulation with low phase shift. This design also ensures very little incidential AM. The Agilent 11715A can also be used in conjunction with an 8901A/B and an 8902A as a calibrated signal source for special applications. In particular, the U.S. commercial FM broadcast band of 88 to 108 MHz is covered by the FM divide-by-4 output of the 11715A.
Specifications: FM Outputs
Frequency range:
11 to 13.5 MHz, AM/FM divide-by-32 output
88 to 108 MHz, FM divide-by-4 outputs
352 to 432 MHz, FM output
Peak deviation:
> 12.5 kHz, 11 to 13.15 MHz carrier
>100 kHz, 88 to 108 MHz carrier
>400 kHz, 352 to 432 MHz carrier
Distortion:
<0.025% THD (<-72 dB)for
Carrier frequency Peak deviation Modulation rate
12.5 MHz 12.5kHz < 10 kHz
100 MHz 100 kHz < 100 kHz
400 MHz 400 kHz < 100 kHz
Flatness:
+/- 0.1%, dc to 100 kHz rates +/- 0.25%, dc to 200 kHz rates
Stereo Seperation:
(88 to 108 MHz carrier, 75 kHz peak deviation, 1 kHz rate):> 60 dB typical
AM
Output
Frequency range:
(AM/FM divide-by-32 output):11 to 13.5 MHz
Depth:
To 99%
Distortion
<0.05% THD (<-66 dB), 50% AM, 20 Hz to 100 kHz rates
<0.1% THD (< -60 dB), 95% AM, 20 Hz to 100 kHz rates
Flatness:
+/- 0.1%, 50 Hz to 50 kHz rates;
+/- 0.25%, 20 Hz to 100 kHz rates
Linearlty:
+/- 0.1%, < 95% AM; +/- 0.2%, < 99%
Ordering Information: Agilent HP 11715A AM/FM Test Source
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