r/hackrf
HackRF is an open source software definded radio developed by Michael Ossmann with funds from the DARPA. It has an operation frequency from 1 MHz to 6 GHz (send and receive in half-duplex). You find further information on the github page https://github.com/mossmann/hackrf/wiki
Members
37,374
37K
Online now
—
not captured in the last snapshot
Posts per day
—
no sample yet
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
—
not enough history yet
Promo tolerance
—
not assessed yet
Last post
—
no sample yet
Distinct posters
—
no sample yet
Tracking since Aug 7 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/hackrf discusses.
Subreddit for all things Software Defined Radio (SDR), both hardware and software.
A subreddit for the low-cost software defined radio (SDR) community. While originally dedicated to the [RTL2832U USB rtl-sdr](http://sdr.osmocom.org/trac/wiki/rtl-sdr) project, relevant content related to general SDR, RF, and similar projects are also welcomed.
Welcome to Reddit's own amateur (ham) radio club. If you are wondering what Amateur Radio is about, it's basically a two way radio service where licensed operators throughout the world experiment and communicate with each other on frequencies reserved for license holders. All topics relating to the hobby are welcome here, from purchasing and building equipment, to operating techniques and activities, and everything in between.
See the full lists on similar subreddits.
r/hackrf — frequently asked
How many members does r/hackrf have?
r/hackrf has 37,374 members as of our most recent crawl on Aug 24. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/hackrf growing?
We don't have 30 days of snapshot history for r/hackrf yet, so we're not going to invent a growth number. We've been tracking it since Aug 7; the chart fills in as history accumulates.
How active is r/hackrf?
We don't have a reliable posting-rate sample for r/hackrf yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.
Can I promote my product in r/hackrf?
We don't have a promo-tolerance read for r/hackrf yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/hackrf for mentions?
Hit Watch on this page. Prowlo starts crawling r/hackrf into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/hackrf's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/hackrf's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
Prowlo never posts for you