Features:
- Well designed circuit board layout.
- Can be controlled by upper computer official software.
- All control pins are leaded out for convenient operation.
- Durable construction for long-lasting performance.
- Three-wire serial peripheral interface bus for controlling pin and state locking pin.
- Allows all functions including point frequency sweep and frequency hopping.

Specifications:
- Output frequency range: 137M-4.4GHz
- Supply voltage: 4-9V (5VDC)
- Output signal:
- 2.2GHZ--4.4GHz sine wave (fundamental)
- 137MHZ--2.2GHz square wave (fundamental division)
- Wideband output, programmable signal strength: + 5dBm
- connector: SMA female head
- Control Interface: Three-wire Serial Peripheral Interface Bus
- Reference Clock: 10.000MHZ (default), external SMA connection
- Weight: 16g

Connection:
- GND -> GND
- VDD (5V) -> VCC
- VO -> NC (empty)
- RS -> NC (empty)
- R / W -> MUXOUT
- EN -> CLK
- DB0 -> DATA
- DB1 -> LE
- DB2 -> CE (10K pullup)
- DB3 -> GND (do not take)

Reference Clock:
- Default reference clock is 10.000MHZ
- Can use external reference clock signal by modifying the three-way connection with a soldering iron

RF output:
- Default broadband output, two differential signals
- One can be used for output, the other can be used for monitoring

Package Included:
- 1 x Signal Source Frequency Synthesizer

Note:
- Product type (new or old) will be sent randomly
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