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- Subject: FT-726 AUDIO MODIFICATIONS
-
- Further improvement in FT-726 audio quality can be achieved by a simple
- modification to the product detector. The product detector seems to be
- overloaded by the input IF signal, the 6dB attennuator described here
- will improve the RX-quality
- The circuit is proposed by LA8AK, and tested by LA7BI (Egil);
-
- ----------------- 1K --------------- to pin 5, Q13;uPC1037
- I I
- I I
- T11 I
- output 1K
- link I
- I I
- --------------------------
- I
- I
- C67
- 47nF( .047)
- I
- I
- --- pcb/ground
- the two resistors (1000 ohms) are easily mounted below the PCB
- Break the pcb between the coil and IC pin 5, mount the resistor, and
- connect the other resistor from the capacitor to IC pin 5
- The audio quality should be much improved, and you should at least be
- capable of understanding somebody who does not exactly speak the same
- language as you. Englishmen should now be able to read foreigners who
- speak english, although it is well known that foreigners from different
- countries who use english understand each other, but the englishmen
- often do not understand them.
- HI HI
- 73 de jan-martin
- LA8AK @ LA5IV 89 01 21 - 1828Z