This is my NDI HC-1400 ham radio that I picked up at my local Value Village for 20 bucks. It didn’t come with a power supply, or antenna, or microphone, so I had to scavenge around to find some replacements. I found a cheapo antenna on ebay for around $20 and then got a BNC adapter for it at my local electronics supply store. While I was there I also picked up a Motorola 14V 10A power supply for about $35. The microphone took me months to find, everything on ebay was too expensive or didn’t work, and I had no idea where to find amateur radio parts around here. Luckily my friend Martin from high school’s dad also dabbled in the fine art of Ham and he gave me his Cobra CA-73. Now that I had all the parts I had no idea how to work the damn thing, so I scoured the Internet for data sheets or schematics. Eventually I got in contact with a fine old chap from England who promply emailed me a pdf full of everything I needed. I eventually got the antenna hooked up and the radio powered, but I still can’t figure out how to wire my microphone up properly. If anyone knows how to do it, please leave a comment 
Stats:
Type: |
Amateur VHF transceiver |
Frequency range: |
RX/TX: 144-146 (Europe) |
Mode: |
FM |
RF Power output: |
HI 25 W : Low 5W |
Sensitivity: |
at 12dB less than 0.3uV |
Selectivity: |
More than 60dB at +-15 KHz |
Image rejection: |
More Than 60dB |
Voltage: |
13.8 VDC +- 15% |
Current drain: |
MAX 5.5 Amps. |
Impedance: |
50 ohms, SO-239 |
Dimensions (W*H*D): |
182W*66H*258D mm. |
Weight: |
3.4 Kg |
Manufactured: |
1983 |
(“Borrowed” from www.oz2jht.dk)
Comments
The mic should be easy enough to wire if you have rig schematics. All the other connection on the mic socket are for up/down frequency change buttons.
Pins 1 & 3 are the mic connections & pin 2 is the PTT switch, which you can work out which connection from the mic is, with a multimeter.
hello do u still have the ndi radio i have a problem the relay has been removed and i cannot find type and model number from diagrams its a g2e type ffom omron but there are several different models can u possible put a eye glass to the unit and take a look many thanks
Steve – if you read this, and still need the information, please contact me through my website.
I have one of these radio it looks like new . but i can`t get a manuel on it any help please , THanks Tommy
Hi, has anyone a manual for this rig? I have the schematics and full circuit diagrams but no manual. Specifically I need to know how the repeater splits work. Cheers
I have one radio, but I am not schematic or manual, please send me the manual and schematic this radio NDI HC 1400 Taks
Any idea what the ‘Cross’ switch does on this rig?
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