ERCES Prep: ERRCS BDA & DAS

TapForge Studios

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About this app

Study for the In-Building Public Safety Communications (IB-PSC) certification and carry your RF field tools in one offline app — built for the technicians who install, test, and design ERCES systems, also known as ERRCS.

★ 200 exam-style questions across 8 categories: RF fundamentals, components and equipment, codes and standards, survey and design, installation, testing and maintenance, FCC and regulatory, and safety and project management
★ Full-length timed exam simulations matched to the real computer-based test formats — Level I (88 questions / 110 min), Level II (143 / 155), Level III (126 / 170), and Design (110 / 150)
★ Open Book mode, mirroring the real exam's approved-reference policy
★ Field reference: coverage requirements under IFC 510 and NFPA 1225, the DAQ scale, monitored conditions, public safety frequency bands, grid testing steps, and formulas
★ Field tools that work offline on the jobsite:
• dBm to watts, both directions
• VSWR and return loss
• Link budget / EIRP with margin against your target
• Coax run loss for LMR-400, 1/2 in and 7/8 in at 150, 450 and 800 MHz
• Cascade calculator for gains and losses
• Isolation margin against booster gain
• Battery runtime against the 12-hour requirement
• 20-grid floor test tracker with pass/fail verdict logic
★ Instant feedback with an explanation and code reference on every question
★ Track your best score by category and by certification track
★ 100% offline. No account, no sign-in, no internet required.

BUILT FOR THE WORK, NOT JUST THE TEST
Whether your AHJ calls it ERCES or ERRCS, this covers the material you live in: bi-directional amplifiers (Class A and Class B), distributed antenna systems, donor antennas and isolation, UL 2524 listing, NFPA 72 supervision, the -95 dBm benchmark, DAQ 3.0, 12-hour battery backup, grid acceptance testing, 2-hour pathway survivability, and FCC Part 90.219 licensee consent.

WHO IT'S FOR
Low-voltage and fire alarm technicians, RF and DAS installers, public safety communications techs, system designers, and inspectors preparing for certification — or anyone who needs the numbers on a jobsite without a signal.

FREE, WITH AN OPTIONAL UPGRADE
Every question, simulation, lesson, and tool is free. A single one-time purchase removes ads. No subscription, and nothing is locked behind a paywall.

DISCLAIMER — NOT A GOVERNMENT APP
ERCES Prep is an independent study aid from TapForge Studios. It does not represent, and is not affiliated with, endorsed by, or authorized by any government entity, agency, or department, and it does not provide or facilitate any government service. It is also not affiliated with or endorsed by NICET. NICET is a registered trademark of the National Institute for Certification in Engineering Technologies, referenced here for identification only. All questions are original practice material — no actual exam content is reproduced.

OFFICIAL SOURCES
This app summarizes publicly available codes, standards, and regulations for study only. Always verify against the current adopted edition for your jurisdiction. Original sources:
• FCC rules, 47 CFR Part 90 (U.S. Government): https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-90
• FCC RF exposure limits, 47 CFR 1.1310 (U.S. Government): https://www.ecfr.gov/current/title-47/section-1.1310
• OSHA construction standards, 29 CFR 1926 (U.S. Government): https://www.osha.gov/laws-regs/regulations/standardnumber/1926
• NICET certification program: https://www.nicet.org
• International Fire Code, Section 510 (ICC): https://codes.iccsafe.org
• NFPA 1225 and NFPA 72 (free read-only access): https://www.nfpa.org/codes-and-standards
• UL 2524 (UL Standards): https://www.shopulstandards.com

What’s new

Added 750 questions
Added cross-promotions