From 67290da138de7c4bbdf64a3f4eab1a03851dcb2b Mon Sep 17 00:00:00 2001 From: spaceneedle Date: Mon, 6 Jul 2015 16:59:57 -0700 Subject: [PATCH] Created HamShield Specifications (markdown) --- HamShield-Specifications.md | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 HamShield-Specifications.md diff --git a/HamShield-Specifications.md b/HamShield-Specifications.md new file mode 100644 index 0000000..a4b594c --- /dev/null +++ b/HamShield-Specifications.md @@ -0,0 +1,31 @@ +HamShield Specifications + +* Transceiver Frequency Range: 134-174MHz, 200-260MHz, 400MHz-520MHz + +* Shield Compatibility: Arduino Uno, Arduino Mega, or any 5VDC Arduino header compatible board + +* Max number of HAMShields per Arduino: 1 (Address selector may allow 2, but unsupported) + +* Power Output: 250mW (provisional specification) + +* Modulation: FM + +* Channel Size: Selectable, 12.5KHz or 25KHz + +* Transceiver IC: Auctus 1846S + +* Antenna Connector: SMA + +* Sub Audio: CTCSS, CDCSS, DCS, Supports different codes on both transmit and receive + +* Headset Audio Connection: Smartphone style headset (TRRS connector) + +* Arduino Audio Connection: PWM output with built in filter, ADC input with built in filter and amplifier + +* Emphasis: Pre-emphasis, de-emphasis, and low pass filter can be enabled or disabled in software + +* Vox Support: Yes, configurable + +* Tone Detection: DTMF and programmable inband dual tone + +* Tone Generation: DTMF and programmable inband dual tone, programmable inband single tone