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HP2DFA > LORA 14.09.26 22:00l 28 Lines 1806 Bytes #294 (0) @ WW
BID : 1981_HP2DFA
Read: GUEST
Subj: LORA STATISTIC CENTRAL AMERICA SEP 7-13
Path: IZ3LSV<IW0QNL<HB9ON<DK0WUE<PD0LPM<VE3CGR<VE3QBZ<VK3AT<PY2BIL<HP2DFA
Sent: 260914/1628Z 1981@HP2DFA.#COL.PAN.CEAM BPQ6.0.24
LoRa APRS operations across Central America (ITU Region 2) rely on ultra-low-power Chirp Spread Spectrum (CSS) modulation running primarily on **433.775 MHz** (70cm band) and **915.000 MHz** (33cm band, popular for Meshtastic/LoRa hybrid trackers).
Unlike traditional 1200 baud AFSK 2m VHF APRS, Central America's LoRa APRS deployment consists of compact, low-cost micro-gateways (such as LilyGO TTGO T-Beam and ESP32 nodes) feeding the global **APRS-IS** and **lora-aprs.live** backbones.
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**Weekly Operational Summary (Estimated Snapshot)**
| Country / Region | Primary Frequency | Active LoRa iGates | Avg. Daily LoRa Beacons | Primary Hardware Setup |
| --- | --- | --- | --- | --- |
| **Costa Rica (TI)** | 433.775 MHz | 6 – 9 active | ~1,800 – 3,200 | ESP32 SX1278 (CA2RXU firmware), T-Beam trackers |
| **Panama (HP)** | 433.775 / 915.000 MHz | 4 – 7 active | ~1,200 – 2,100 | Solar fixed iGates (Panama City / Chiriquí corridor) |
| **Guatemala (TG)** | 433.775 MHz | 3 – 5 active | ~800 – 1,500 | High-elevation mountain nodes |
| **Honduras / El Salvador / Nicaragua** | 433.775 MHz | 2 – 4 active | ~400 – 900 | Experimental mobile trackers & fixed test nodes |
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**Technical Protocol Profile**
* **Standard Modulation:** Spreading Factor `SF12`, Bandwidth `125 kHz`, Coding Rate `4/5` (standard LoRa APRS parameter set).
* **RF-to-IS Bridging:** iGates receive CSS RF packets locally and ingest them into APRS-IS using format headers matching destination callsigns like `APLGXX` or `APLRXX`.
* **Deployment Pattern:** Low-power (~100mW to 1W TX output) standalone nodes with battery/solar power deployed in dense urban sectors and along major highway routes.
73 de Omar HP2DFA from Colon Panama.
PMAIL: HP2DFA@HP2DFA.COL.PAN.CEAM
EMAIL: HP2DFA@GMAIL.COM
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