The STANDARD C-412 was a simple but solid portable for 70cm amateur radio. It has a BNC-jack and provides max. 4W rf-output. A simple LCD-display shows you current frequency. There were two edition of STANDARD C-412 on the market. One edition with a keypad and another edition without a keypad as shown on the picture above.
| TX-range | 430 – 440MHz |
| Receiver range | 430 – 440MHz |
| Mode | FM mit maximal +-5kHz Hub |
| Crossband oparation | no |
| rf-output | ca. 4W |
| power-steps | unknown |
| sensitivity squelch | ca. 0,2µV |
| Voltage range input | unknown |
| Current consumption RX | unknown |
| current consumption TX | unknown |
| audio-output | unknown |
| steps | unknown |
| tone-call | 1750Hz |
| DTMF | unknown |
| Display illimination | unknown |
| CTCSS | unknown |
| Measurement WxHxD | unknown |
| backside | metall |
| Front | Kunststoff |
| antenna connector | BNC |
| connector external mike | Klinke, 3,5mm und 2,5mm |
| external supply | unknown |
| weight | unknown |
Frequently asked questions
Can you tell me where the backup-battery is?
The backup-battery type VL-1220 is located behind the keyboard.
What can be done against weak audio?
Question: My STANDARD C-412 has very low volume-output. How can I fix that?
Yes. A 100µF-capacitor causes this trouble. In schematic it is labeled as CA24. If you change this cap you can solve the problem of low audio. But is it quite difficult to replace this part. It will help you if you take out the 1µF-cap first.
