Batch 51B’s MX-6 is good, but not great. Switching to or Honeywell PTM7950 reduced our load temps by another 8°C.
| Reviewer | Comment | | :--- | :--- | | | “Perfect HT for me! … By far the nicest HT I have ever owned & it should last me until I’m a SK.” | | VE3TMT | “Even if I don’t use the D‑Star now, I can if I travel. Too many features to pass up.” | | KH6DC | “10+ years later and it works great, still going strong.” | | Australian buyer | “Quite impressive would definitely look into getting another set.” | dmetrystar 51 hot
| Feature | Specification | | :--- | :--- | | | 2 m (144 MHz) and 70 cm (430 MHz) | | Output Power | Up to 5 W (selectable: S‑Low, Low1, Low2, Mid, High) | | Display | 128 × 104 dot‑matrix LCD (1.7") | | Waterproof Rating | IPX7 (submersible to 1 m for 30 minutes) | | Battery | Lithium‑ion, approx. 9 oz (255 g) with battery and antenna | | GPS | Integrated GPS receiver with position logging | | Memory Channels | 1304 | | Operating Temp | –20 °C to +60 °C (–4 °F to +140 °F) | Batch 51B’s MX-6 is good, but not great
Featured Resources * Research Reports. NAIS Research: 2025 Independent School Cost Per Enrollment Study. * Independent Ideas Blog. … By far the nicest HT I have
