VARA HF

VARA HF

Frequencies	54 MHz,1.8 MHz
Frequency Range	1.8 MHz - 54 MHz
Mode	USB
Modulation	FSK,BPSK,4-8PSK,16-32QAM
ACF	—
Emission Designator	—
Bandwidth	2.75 kHz
Location	Worldwide
Short Description	VARA HF is a sound-card mode used to exchange traffic (Mostly Winlink traffic) on the HF bands
I/Q Raw Recording	—
Audio Sample

VARA HFHigh Frequency (3-30 MHz) is a soundcard modem like ARDOP that can be commonly found on the HFHigh Frequency (3-30 MHz) bands exchanging traffic (Winlink). The creator of VARA is EA5HVK.

Free version of VARA HFHigh Frequency (3-30 MHz) only allows tranfers up to ~180 bpsBits per second (bps), where as the paid version (70 USD) can allow transfers up to a max theoretical speed of ~8490 bpsBits per second (bps).

Speeds:

	Vara HFHigh Frequency (3-30 MHz) 2750Hz (Tactical)				Vara HFHigh Frequency (3-30 MHz) 2300Hz (Standard)				Vara HFHigh Frequency (3-30 MHz) 500Hz (Narrow)
Level	Symbol rate	Carriers	Mod	Net Rate bpsBits per second (bps)	Symbol rate	Carriers	Mod	Net Rate bpsBits per second (bps)	Symbol rate	Carriers	Mod	Net Rate bpsBits per second (bps)
1	23	40	FSKFrequency-Shift Keying	18	23	32	FSKFrequency-Shift Keying	18	23	11	FSKFrequency-Shift Keying	18
2	47	20	FSKFrequency-Shift Keying	41	47	16	FSKFrequency-Shift Keying	41	47	11	FSKFrequency-Shift Keying	41
3	47	20	FSKFrequency-Shift Keying	82	47	16	FSKFrequency-Shift Keying	82	47	11	FSKFrequency-Shift Keying	61
4	94	20	FSKFrequency-Shift Keying	175	94	16	FSKFrequency-Shift Keying	175	94	2	BPSKBinary Phase-Shift Keying (1 bit per symbol)	88
5	94	3	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	270	94	3	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	270	94	2	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	177
6	94	4	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	363	94	4	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	363	94	3	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	270
7	94	6	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	549	94	6	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	549	42	11	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	441
8	94	8	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	735	94	8	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	735	42	11	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	588
9	94	10	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	922	94	10	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	922	42	11	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	705
10	94	13	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	1203	42	49	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	2011	42	11	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	884
11	42	59	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	2423	42	49	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	2682	42	11	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	1060
12	42	59	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	3230	42	49	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	3219	42	11	16QAM	1286
13	42	59	4PSKQuadrature Phase-Shift Keying (2 bits per symbol)	3877	42	49	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	4025	42	11	32QAM	1543
14	42	59	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	4848	42	49	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	4830
15	42	59	8PSK8-Phase Phase-Shift Keying (3 bits per symbol)	5817	42	49	16QAM	5872
16	42	59	16QAM	7074	42	49	32QAM	7050
17	42	59	32QAM	8489

VARA is commonly found on the amateur bands & occasionally CFARS/MARS frequency assignments.

Creators website can be found at: https://rosmodem.wordpress.com/