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MX Series handhelds


AEA DX Handy MX-6S Specifications:

Frequency Coverage: Any two 50kHz segments in the 28.0 to 29.0 MHz amateur band
Frequency Control: VXO; Maximum +50kHz per channel
No. of Channels: 2
Frequency Stability: ±500Hz from a cold start
      ±100Hz/30 Minutes at 25°C
Antenna: 50 Ohms unbalanced, BNC connector
Power requirements: 8.4-9.0VDC
Power consumption: 70mA at Receive (no signal); 620mA at Transmit
Size: 1½"(D) x 2 5/8"(W) x 5 5/8"(H) without knob
       39mm (D) x 66mm (W) x 142mm (H)
Weight: 590g; 710g with batteries and antenna

Operating modes: A3J (USB), A1 (CW)
Maximum Output Power: 2W
Spurious Output: Greater than 40dB down
Sideband Supression: Greater than 40dB

Mizuho MX-28S top viewReceiver:
Receiver Sensitivity: Less than 0.5µV for 15dB S/N

Units marketed by JIM (Santec) have the model number MX-28S(T) and may have a charcoal grey case with the JIM brand name, but are otherwise identical to the MX-28S. Units marketed by AEA are labeled as the AEA DX Handy (see photo) but are otherwise identical to the Mizuho labelled radios.

AEA DX-Handy magazine ad (English)
From 1989

Manual (PDF format)
Schematic and Block Diagrams (PDF format)
Crystal Ordering Chart (PDF format)

-Last updated 7/7/2003