README updates

README.md

@@ -6,9 +6,9 @@ Transmit and Receive code for the Project Horus High-Speed Imagery Payload - 'We
 The above image was captured on Horus 42, and downlinked via Wenet. The original downlinked resolution was 1920x1440, and has since been re-sized. The full resolution version is available here: http://rfhead.net/temp/horus_42_full.jpg
 
 ## What is it?
-Wenet is a radio modem designed to downlink imagery from High-Altitude Balloon launches. It uses Frequency-Shift-Keying (FSK) at a rate of 115kbit/s, and uses LDPC forward-error-correction to provide 6 dB of coding gain.
+Wenet is a radio modem designed to downlink imagery from High-Altitude Balloon launches. It uses Frequency-Shift-Keying (FSK) at a rate of ~115kbit/s, and uses LDPC forward-error-correction to provide 6 dB of coding gain.
 
-The transmit side is designed to run on a Raspberry Pi, and the UART is used to modulate a HopeRF RFM98W (yes, a LoRa module) in direct-asynchronous FSK mode. We usually operate in the quieter 440-450 MHz portion of the amateur 70cm band, with our nominal frequency being 443.5 MHz. Due to the non-ideal filtering in the transmitter module the occupied bandwidth is ~300 kHz, so Wenet is not suitable for operation in the 434 MHz ISM band. The usual transmit power we use is 50mW, into an inverted 1/4-wave monopole underneath the payload.
+The transmit side is designed to run on a Raspberry Pi, and the UART is used to modulate a HopeRF RFM98W in direct-asynchronous FSK mode. We usually operate in the quieter 440-450 MHz portion of the amateur 70cm band, with our nominal frequency being 443.5 MHz. Due to the non-ideal filtering in the transmitter module the [occupied bandwidth](https://github.com/projecthorus/wenet/raw/master/doc/occupied_bw.png) is ~300 kHz, so Wenet is not suitable for operation in the 434 MHz ISM band. The usual [transmit power](https://raw.githubusercontent.com/projecthorus/wenet/master/doc/tx_power.png) we use is 50mW, into an inverted 1/4-wave monopole underneath the payload. Details on the modulation and packet formats are [available here](https://github.com/projecthorus/wenet/wiki/Modem-&-Packet-Format-Details).
 
 The receiver side makes used of Software Defined Radio (in particular, RTLSDR dongles), and a high performance FSK modem written by [David Rowe](http://rowetel.com/). Received images are available locally via a web interface, and are also uploaded to https://ssdv.habhub.org/ where packets contributed by many stations can be used to form a complete image live during a flight.