radios:ft-857d
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radios:ft-857d [2023/04/15 17:05] – m0lte | radios:ft-857d [2023/04/15 17:49] (current) – [RF out] m0lte | ||
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====== Yaesu FT-857D ====== | ====== Yaesu FT-857D ====== | ||
- | A 160m to 70cm, all mode, portable, 100W radio without a tuner. | + | A 160m to 70cm, all mode, portable, 100W radio without a tuner. Great for high-ish power portable paired with a fairly chunky battery, and resonant antennas. |
- | ===== Technical | + | ===== Technical ===== |
+ | |||
+ | ==== RF out ==== | ||
+ | |||
+ | It is fairly straightforward to add an SDR output to this radio, with an inexpensive [[https:// | ||
+ | |||
+ | ==== Filter failure | ||
The FT-857D has an issue where ceramic filters go bad and the receiver fills with crashes, even with no antenna connected. Apparently this is due to a design error. If yours hasn't failed yet, prevention is possible, see {{ : | The FT-857D has an issue where ceramic filters go bad and the receiver fills with crashes, even with no antenna connected. Apparently this is due to a design error. If yours hasn't failed yet, prevention is possible, see {{ : | ||
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Replaces LTM455GW, CFWM455G, ALFYM455G\\ | Replaces LTM455GW, CFWM455G, ALFYM455G\\ | ||
9kHz 6dB bandwidth, commonly used for FM(N) | 9kHz 6dB bandwidth, commonly used for FM(N) | ||
+ | |||
+ | For me, CFWM 455E is CF2, LTM 455GW is CF3, and LTM 455HW is CF5. |
radios/ft-857d.1681578359.txt.gz · Last modified: 2023/04/15 17:05 by m0lte