Where do the facts on poc-radio come from?
Facts come from primary sources first: makers' pages and manuals, regulators and standards bodies, operators' and regulators' band data, and platform vendors' own documentation. A dealer's page is used only when the maker is silent, and the page marks it as a dealer's figure.
| Source | What it gives | Examples |
|---|---|---|
| Makers | Specs, sizes, ports, LTE bands, manuals | Product pages, datasheets, user manuals |
| Standards bodies and regulators | Rules, channels, power limits | ECC/DEC/(15)05 on PMR446,1 ETSI TS 102 361-1 on DMR,2 3GPP TS 22.179 on mission-critical push-to-talk3 |
| Spectrum registers and operators | The LTE bands each operator holds or uses | Germany's frequency chart,4 Latvia's permit register5 |
| Platform vendors | Plans, features, supported devices | Pricing and device-list pages |
| Dealers | Only what the maker does not publish | A shop's spec table |
A dealer's figure fills a gap and is labeled as such. Hytera's spec table for the P50 lists no Bluetooth, but two French dealers list Bluetooth 5.0.678 The P50 page shows both: Bluetooth 5.0 from the dealers, and not listed by Hytera.
How do we record the facts?
Every fact goes into a knowledge base before it reaches a page. Each radio, maker and platform has a card, and every value on a card has a source. If no source states a value, the card says "unknown". We never fill a gap from a similar model.
| Records (October 2026) | Number | What they hold |
|---|---|---|
| Radio and push-to-talk device cards | 354 | 291 current models; 1,055 source entries9 |
| Maker cards | 53 | Company, product lines, sales in Europe |
| Platform cards | 31 | Plans, features, supported devices |
| Operator LTE band entries | 465 | LTE bands of 73 operators in 22 countries |
- Each source entry notes the address, the date it was read and the fields it supplied.
- Makers' text is paraphrased. We copy only names, model numbers, specifications and short quotes.
- Notes on regulation grade each statement as primary (official text read directly) or secondary, so the two are not mixed.
- A missing fact is added to its card, with a source, before it is added to a page.
What happens when sources disagree?
The page shows both values and names the source of each; we never pick one silently. When we need a single number, such as a drawing size, the maker's figure outranks a dealer's. Hytera's web pages give the P50 as 131 mm high and its Product Description 129.5 mm, so the page shows both.610
140 of the 354 radio cards record at least one such disagreement.9 Model pages list the differing values side by side, each with its source, so you can see the gap and decide which figure suits your question.
How does a fact get onto a page?
A fact takes five steps: find the source, record it on a card, compare it with other sources, write it into a page and check the page. A page states only what a card holds, and a card holds only what a source states.
- Find the sourceThe maker, a regulator or a standard first; a dealer only when the maker is silent.
- Record itThe value goes on its card with the address, the date read and the fields it supplied.
- CompareValues from other sources are set beside it. Differences are recorded with both values.
- Write the pagePlain words first, then numbers with units. A maker's claim is written as a claim.
- Check and dateMax Streltcoff checks each number against its card and source. The page gets an Updated date.
Do you test the radios?
No. We have no test radios and run no lab tests, so the site publishes no measurements of its own. Battery life, range and loudness are the makers' published figures, labeled as claims. What we add is published data set side by side, band matches between radios and operators, and our own drawings.
How does the LTE band check work?
The checker compares a radio's LTE bands with the bands of each operator in a country. A shared band means the radio can connect. If the operator has no low band, or the radio lacks the operator's low bands, coverage outside cities is weaker. With no shared band, the radio will not work.
| Result | Rule |
|---|---|
| Works | The radio shares at least one band with the operator and supports at least one of the operator's low bands |
| Weaker outside cities | The radio shares a band, but the operator runs no low band, or runs low bands that the radio lacks |
| Will not work | The radio shares no band with the operator |
- The low bands are B8 (900 MHz), B20 (800 MHz) and B28 (700 MHz).
- The radio's bands are the LTE FDD and TDD bands on its card. The operator's bands are every LTE band the database lists for it. A toggle shows each operator's bands and strikes out the ones the radio lacks.
- The headline ("Works with N of M networks") counts every network except those marked "Will not work". Networks marked "Weaker outside cities" stay in the list with the reason in words.
- The check compares band numbers only. It does not cover APN settings, roaming terms or an operator's own device rules.
- The check uses 422 of the 465 LTE band entries: 43 are marked as used only for 2G/3G or only for 5G and are left out. Regulators or operators confirm 149 of the entries. A register shows that an operator holds a band, not that it runs LTE on it. The other entries come from secondary lists and are not yet confirmed against a regulator or an operator.9
Other tools explain their method at the bottom of their own pages.
How are the radio drawings made?
We redraw each radio ourselves from the maker's official photos, and we publish only our own drawings. All drawings share one scale, 10 pixels per millimeter, and the body matches the maker's width and height. Side by side, a small radio looks small and a large one looks large.
- A script measures each drawing's body and compares it with the maker's size. It must match within 1%. If it does not, we redraw it instead of stretching it.
- The body means the case without the antenna. Knobs, keys and antenna are drawn at the same scale.
- Where sources disagree on a size, the maker's figure is used.
- Wherever radios stand side by side, they share one scale and stand on one line.
- The line illustrations on guides and tools are generic and show no real product.
How are the 3D models made?
A 3D model starts from the maker's own drawing. We read the position of every key, port and opening from the maker's labeled views and place them on a body that matches our front drawing and the maker's stated depth. The first model is the Hytera P50, from the six-view drawing in Hytera's Product Description.10
- Each item in the layout file has a status: confirmed by source, seen in a photo only, or not found.
- Positions are measured from the drawing to about 3 mm.
- A part that no source documents is marked as such, not invented.
How often are pages checked?
Every page shows an Updated date: the day its facts were last checked against the sources. When a maker, operator or platform changes something, the card is updated first, then the page and its date. Prices and plans change often, so they carry the month they were read.
How do I report an error?
Send the page link, the value you think is wrong and, if you have one, a source through the contact form or to [email protected]. We compare it with our sources and, if it holds, correct the card and the page and change the Updated date. Makers and vendors can report errors the same way.
Questions
How do I find the source of a number?
A small linked number after a figure jumps to its entry in the Sources list at the bottom of the page. Counts from our own database link to the page that shows the data.
Why is a maker's figure called a claim?
Makers measure battery life, range and loudness under their own conditions, which are not always published. Hytera quotes up to 36 hours for its P5 series without the duty cycle behind it, so the page writes that Hytera states it.11
What if a maker publishes no LTE band list?
The page says the maker does not publish it, and we do not guess from similar models. A band list is in the database for 237 of the 291 current models; the other 54 have none.9
Can a maker preview a page, pay for it or have a fact removed?
No. Makers and vendors cannot preview a page, pay for a place or ask us to remove a fact. They can report an error, and we correct it when the sources support the change.
Sources
- Wireless network access, 700 MHz to 3.8 GHz: frequency chart (in German) · Bundesnetzagentur
- Radio frequency allocation and use permits (in Latvian) · Elektroniskie sakari, Latvia
- Hytera P50 PoC radio · Hytera Europe
- Hytera P50 listing (in French) · Instavox shop
- Hytera P50 listing (in French) · OfficeEasy
- Radio specifications and LTE bands of 73 operators in 22 countries · poc-radio knowledge base
- HYT-P50 PoC Radio Product Description V1.0 (2025) · Hytera, copy hosted by dnd.hu
Show all 11 sources
- Hytera P50 PoC radio (global page) · Hytera
