You're building an ISP in Uganda. You have a transit connection, a MikroTik router, and a list of potential subscribers. Now comes the most consequential infrastructure decision you'll make: do you go wireless (WISP) or fibre (FTTH)?
Both models work in Uganda. Both have profitable operators. But they serve different geographies, different subscriber profiles, and different business models. Choose wrong for your context and you'll spend years fighting a cost structure that was never going to work.
This guide breaks down every factor — cost, speed, terrain, churn, scalability, and hybrid strategies — so you can make the right call for your specific market.
The Core Trade-off: Speed to Market vs Long-Term Economics
Every FTTH vs WISP decision comes down to one fundamental trade-off:
- WISP: Fast to deploy, low capex, wide coverage — but higher churn, lower ARPU ceiling, and radio interference risk as the market matures.
- FTTH: High capex, slower rollout — but structural churn advantage, higher ARPU, Gigabit-capable, and increasingly expected by urban subscribers.
The right answer depends on your specific geography, subscriber density, available capital, and time horizon. Let's break each factor down.
Factor 1: Upfront Cost (Capex) Per Subscriber
| Cost Component | WISP | FTTH |
|---|---|---|
| Tower/PoP equipment | USh 1.5M – 4M per PoP | USh 3M – 8M (OLT + splitter) |
| Per-subscriber CPE | USh 80K – 200K (CPE radio) | USh 150K – 350K (ONT) |
| Last-mile cable | CAT6 copper (USh 795K/305m) | Fibre drop (USh 200K/1km) |
| Installation labour | Low – CPE mount + cable | High – splice + ODP + conduit |
| Typical capex/subscriber | USh 200K – 500K | USh 500K – 1.5M+ |
Verdict: WISP wins on capex. For ISPs with limited starting capital, WISP lets you generate revenue and cash flow before investing in fibre.
Factor 2: Monthly Churn Rate
Churn — the percentage of subscribers who disconnect each month — is the silent killer of Uganda ISPs. High churn means constant customer acquisition costs eating your margins.
- WISP churn: 5–12% monthly in competitive Uganda markets. A subscriber can switch ISPs with a simple CPE antenna swap. Price competition is fierce.
- FTTH churn: 2–4% monthly. A subscriber won't call a competitor to rip out and replace the fibre cable that runs through their building. Physical installation creates loyalty.
At 500 subscribers, the difference between 8% and 3% monthly churn is 25 subscribers lost per month vs 15 — a 40 subscriber/month acquisition gap just to stand still. That compounds fast.
💡 Automation tip: Regardless of WISP or FTTH, automated billing dramatically reduces churn from expired subscriptions. See our ISP Billing & Automation Solutions →
Factor 3: Terrain & Geography
Uganda's geography favours WISP in many regions — but not all:
- WISP-friendly: Rural areas with line-of-sight between tower and subscriber clusters. Low subscriber density spread over large areas. Hilly terrain with elevated PoP sites (Kampala hills, Wakiso, Mukono).
- FTTH-friendly: Dense urban estates, apartments, gated communities, commercial parks. Areas with underground conduit or existing ducting. Kampala CBD, Kololo, Naguru, Ntinda, Muyenga.
- Challenging for WISP: Dense urban canyons with obstructed line-of-sight. Heavy tree cover. Multi-storey buildings blocking RF paths.
- Challenging for FTTH: Remote rural areas with dispersed housing. Long subscriber drops (200m+) making fibre cost prohibitive. Temporary/informal settlements.
Factor 4: Speed & Quality of Service
| Metric | WISP (5GHz) | FTTH (GPON) |
|---|---|---|
| Typical speeds | 10–100Mbps shared | 10Mbps–1Gbps dedicated |
| Latency | 5–30ms | 1–5ms |
| Peak hour degradation | Significant (shared RF) | Minimal (dedicated fibre) |
| Upload speed | Asymmetric, limited | Symmetrical available |
| Weather impact | Rain fade on 5GHz+ | None |
| Interference risk | High in dense markets | None |
Verdict: FTTH wins decisively on quality. For corporate and premium residential subscribers, FTTH's reliability and low latency command significantly higher ARPU.
Factor 5: ARPU (Average Revenue Per User)
Higher quality commands higher prices:
- WISP ARPU in Uganda: USh 50,000 – 150,000/month (residential), USh 200,000–500,000 (SME)
- FTTH ARPU in Uganda: USh 100,000 – 300,000/month (residential), USh 500,000–1,500,000+ (corporate)
At 300 subscribers, the difference between USh 80,000 WISP ARPU and USh 180,000 FTTH ARPU is USh 30,000,000/month in additional revenue. FTTH's higher capex starts looking very different at that scale.
The Hybrid Model: How Uganda's Best ISPs Operate
The false choice is WISP or FTTH. The successful model is WISP then FTTH — or WISP plus FTTH in parallel zones.
Typical hybrid evolution:
- Phase 1: Deploy WISP to cover your service area quickly, acquire 100–300 subscribers, generate cash flow. Use the MikroTik ISP Starter Kit to get operational fast.
- Phase 2: Identify your highest-density zones — estates, apartments, commercial blocks. Deploy FTTH drops using FTTH self-support drop cable. Migrate your best WISP subscribers to fibre at higher ARPU.
- Phase 3: WISP handles your wide-area suburban and rural coverage. FTTH handles your urban dense zones and corporate accounts. Both run on the same RADIUS server and billing system.
💡 Both networks can share a single billing and automation platform. Our ISP billing system supports both WISP and FTTH subscribers on one dashboard →
Equipment for Each Model
WISP Equipment
- MikroTik ISP Starter Kit — 4-Device Bundle (Uganda) — The fastest way to get a WISP PoP operational. Includes router, outdoor AP, PoE injector, and mounting hardware.
- MikroTik wAP ac Dual-Band Outdoor Access Point — Deploy at subscriber premises as CPE or at PoPs as distribution nodes. IP66-rated for Uganda's climate.
- MikroTik MANT 30 PA — 5GHz 30dBi Parabolic Dish — Long-distance point-to-point backhaul between towers. 10–40km links depending on terrain.
- MikroTik RBGPOE Gigabit PoE Injector — Power your outdoor radios. Keep spares at every PoP.
- Celertec CAT6 Outdoor Solid Copper Cable — 305m Drum — Solid copper PoE drops from injector to CPE. Never use CCA for PoE runs.
FTTH Equipment
- FTTH Drop Cable — 1/2/4-Core Self-Support Steel Wire (1km Drum) — G.657A1 single-mode fibre with integrated steel messenger wire. No separate catenary. From USh 200,000/1km. The backbone of your last-mile fibre rollout.
- MikroTik hEX S RB760iGS — Gigabit Router with SFP & PoE — Core router with SFP fibre uplink for PoPs receiving transit over fibre. Ideal for FTTH distribution points.
- MikroTik hEX RB750Gr3 — 5-Port Gigabit Router — Subscriber-premises router for FTTH-connected homes with internal Wi-Fi distribution.
Shared Infrastructure (Both Models)
- HP ProLiant DL380 Gen10 Rack Server — RADIUS, billing, NMS, and web portal for your entire subscriber base — whether they're on WISP or FTTH.
- HP ProLiant DL360 Gen10 Rack Server — Compact 1U option for smaller ISPs combining WISP and FTTH under 500 subscribers.
Decision Framework: Which Should You Choose?
| Your Situation | Recommended Model |
|---|---|
| Starting out, limited capital, rural/peri-urban area | WISP first |
| Dense urban estate or apartment block | FTTH |
| Existing WISP with 200+ subscribers, urban zones identified | Hybrid — add FTTH |
| Corporate/SME-focused ISP | FTTH primary |
| Wide geographic coverage target (>10km radius) | WISP primary |
| Long-term churn reduction priority | FTTH or hybrid |
| Speed to first revenue most critical | WISP |
ISP Billing: The Same System for Both
One major advantage of the hybrid model: your billing and automation system works identically for WISP and FTTH subscribers. PPPoE authentication, Mobile Money collection, automatic suspension/reactivation, and revenue reporting all work regardless of whether the subscriber is connected via radio or fibre.
This means you can migrate subscribers from WISP to FTTH without changing your billing platform, subscriber portal, or operational workflow. Explore our ISP Billing & Automation Solutions — built for Uganda ISPs running WISP, FTTH, or both →
Frequently Asked Questions
Q: What is the difference between FTTH and WISP?
FTTH uses physical fibre cable to each subscriber; WISP uses radio waves. FTTH offers higher speeds and lower churn; WISP offers faster, cheaper deployment.
Q: Which is cheaper to deploy in Uganda?
WISP capex is 3–10x lower per subscriber. A WISP PoP for 50 subscribers costs USh 3M–8M. FTTH costs USh 500K–1.5M+ per subscriber in capex.
Q: Does FTTH have lower churn?
Yes — typically 2–4% vs 5–12% monthly for WISP. Physical installation creates a switching barrier that wireless cannot match.
Q: Can I run both WISP and FTTH?
Yes — the hybrid model is how most successful Uganda ISPs scale. Start with WISP, add FTTH in dense zones. Both share the same core router, RADIUS server, and billing system.
Q: What equipment do I need for FTTH in Uganda?
FTTH drop cable, OLT or media converter, splitters, ODP boxes, ONTs per subscriber, fusion splicer, and a router with SFP uplink like the MikroTik hEX S.
Q: What speeds can FTTH deliver vs WISP in Uganda?
FTTH: 10Mbps–1Gbps+ dedicated, 1–5ms latency. WISP: 10–100Mbps shared, 5–30ms latency with peak-hour degradation.
Not sure which model fits your specific service area? Talk to our ISP infrastructure team for a free network planning consultation →
