Equipment Catalogue — Multicord Audio Visual

Category	Item	Qty	Days	Rate/Day	Subtotal
Total Hire Cost	£0.00

AV Tools

Tools

Projection calculators, audio analysis and other utilities for professional AV work.

LENS THROW CALCULATOR

Screen Width input

Throw Distance input

Throw Ratio input

Solve for

Formula

Distance = Ratio × Widthdistance ÷ width = throw ratio

The throw ratio is the single number that defines a projector lens — it stays constant regardless of image size.

Mix units freely — each field converts independently before calculating.

Common Lens Types

Type	Typical ratio
Ultra short throw	0.2 – 0.4
Short throw	0.4 – 0.8
Standard	1.0 – 2.0
Long throw	2.0 – 8.0+

Need a projector?

Browse our projection hire range — from ultra short throw to long throw lenses for any venue.

hire@multicord.co.uk

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Microphone Access

This app needs your microphone to analyse audio.

Click Allow Microphone then approve the browser prompt.

31-Band EQ Analyser

ISO 1/3 Octave · Real-Time Spectrum · Web Audio API

Peak Frequency—Hz

Musical Note—

Band—

Peak Level—dB

Peak Hold—Hz

Idle — awaiting input

Smooth Gain Hold

Band Selection

Configuration

Number of microphones

Min channel separation (MHz)

UK PMSE Guidance

Wireless microphones in the UK are licensed under Ofcom's PMSE regime. Always verify your venue postcode before deployment.

Keep ≥0.5 MHz separation between channels and check for IM3 intermodulation products.

Venue Postcode — Local TV & Interference Lookup

Channels

—

Status

—

Min Sep (MHz)

IM3 Conflicts

Spectrum —

Your channels

IM3 conflicts

IM3 (clear)

TV channel edges

TV occupied

Frequency (MHz)

Status

Note

Analysis Output

INFO

Enter a venue postcode, then generate or enter frequencies.

Sennheiser UK Band Reference

Band	Range (MHz)	Span	Models	Notes
A	516–558	42 MHz	EW100/300/500 G4	Interleaved CH21–24; PMSE licensed
B	626–668	42 MHz	EW100/300/500 G4	Clear; widely used post-600MHz clearance
C	734–776	42 MHz	EW100/300/500 G4	Partially cleared; verify per postcode
G3	566–608	42 MHz	EW100/300/500 G3	Legacy G3 band; widely used in hire stock
G4	566–608	42 MHz	EW100/300/500 G4	Same range as G3; updated receiver
K	606–648	42 MHz	EW100 G4	Cleared post-700MHz; check local occupancy

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Admin Access

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📦 Stock Database

+ Add New Item

Classification

Category *

Manufacturer *

Subcategory

Model *

Customer Description

Asset Identity

Asset Number *

Serial Number

Financials

Item Cost (GBP) *

Hire Price / Day (GBP) *

PAT Testing

Last PAT Test Date

PAT Expiry Date

PAT Result

PAT Tester

Photo

📷 Click or drag to upload (JPG, PNG, WebP)

Photo	Cat / Sub	Manufacturer	Model	Asset #	Serial #	Cost	Hire/Day	PAT	Website	Actions

Import JSON Backup

Restore or merge from a previous backup file.

Items with matching IDs will be updated. New items added. Existing items not in file are kept.

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Drop JSON file here

or click to browse

Import CSV

Bulk-add or update stock items from a spreadsheet.

Rows matching an existing Asset Number will update that item. All other rows are added as new.

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Drop CSV file here

or click to browse

Map columns to fields

Use Download CSV from the admin toolbar to export your current data as a ready-to-reimport file.

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