0~55Mhz Dds Signal Generator*Direct Digital Synthesis Ham Radio Vfo Wireless

Features:
* Brand new and high quality
* Made of high quality materials, sturdy and durable
* This is a 0~55MHz DDS signal generator. It is based on the AD9850 chip and is very simple to operate.
* Supports continuous adjustment from 0~55MHz in 1Hz steps.
* This generator uses 78L05 voltage regulation. The input current is 200MA, and the input voltage is 8-9V, which is the ideal voltage.
* The 12V input voltage can only be used for short-term testing, otherwise it will cause the board to heat up.
* 5p/6p connected to encoder as shown. The middle 7p is connected to the digital for matrix input. 14p (8V GND) is the 8V power supply for the motherboard. DDS does not require a separate power supply if powered by the motherboard.
* 1~6 corresponds to 6 frequency bands: (3.8, 7, 9, 14, 18 or 21, 27 or 29)
* ISB, USB, CW are three mode options.
* DT is the signal from the motherboard.

Specification:
Buttons and connection interface:
ENC: encoder switch
MEM: memory mode switch
TX = ABS(RX_DDS_FREQ + TX_OFFSET_FREQ)
RX_DDS_FREQ, MIN_RX_DDS_FREQ, MAX_RX_DDS_FREQ, TX_OFFSET_FREQ and OFFSET_FREQ

example:
1. DDS output range 30~40MHz:
MIN_RX_DDS_FREQ MAX_RX_DDS_FREQ OFFSET_FREQ RX frequency display range.
30 MHz 40 MHz 100 MHz = 130 MHz to 140 MHz. \ Note 1
30 MHz 40 MHz -10 MHz = 20 MHz to 30 MHz. /
-40 MHz -30 MHz 170 MHz = 140 MHz to 130 MHz. \Note 2
-40 MHz -30 MHz 60 MHz = 30 MHz to 20 MHz. /

2. Set up FT180A with DDS:
Enable RPT numbering
X6 Reclock X6
DDS system clock 180M
Maximum DDS frequency 65M
Minimum RX DDS frequency 10.701M (offset frequency + RIT frequency)
Maximum receiving DDS frequency 60M
Send offset frequency 0
Maximum RIT offset 1K (RIT frequency)
OFFSET FREQ -10.700M - (Offset frequency)
Multiplier 1

Package Included:
1 x 0~55MHz DDS Signal Generator * Direct Digital Synthesis HAM Radio VFO Wireless

Note:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight manual measurement deviation for the data.