1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
|
========================================================================
UHD - Daughterboard Application Notes
========================================================================
.. contents:: Table of Contents
------------------------------------------------------------------------
Daughterboard Properties
------------------------------------------------------------------------
The following contains interesting notes about each daughterboard.
Eventually, this page will be expanded to list out the full
properties of each board as well.
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Basic RX and and LFRX
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The Basic RX and LFRX boards have 4 subdevices:
* **Subdevice A:** real signal on antenna RXA
* **Subdevice B:** real signal on antenna RXB
* **Subdevice AB:** quadrature subdevice using both antennas (IQ)
* **Subdevice BA:** quadrature subdevice using both antennas (QI)
The boards have no tunable elements or programmable gains.
Though the magic of aliasing, you can down-convert signals
greater than the Nyquist rate of the ADC.
BasicRX Bandwidth (Hz):
* For Real-Mode (A or B subdevice): 250M
* For Complex (AB or BA subdevice): 500M
LFRX Bandwidth (Hz):
* For Real-Mode (A or B subdevice): 33M
* For Complex (AB or BA subdevice): 66M
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Basic TX and and LFTX
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The Basic TX and LFTX boards have 4 subdevices:
* **Subdevice A:** real signal on antenna TXA
* **Subdevice B:** real signal on antenna TXB
* **Subdevice AB:** quadrature subdevice using both antennas (IQ)
* **Subdevice BA:** quadrature subdevice using both antennas (QI)
The boards have no tunable elements or programmable gains.
Though the magic of aliasing, you can up-convert signals
greater than the Nyquist rate of the DAC.
BasicTX Bandwidth (Hz): 250M
* For Real-Mode (A or B subdevice): 250M
* For Complex (AB or BA subdevice): 500M
LFTX Bandwidth (Hz): 33M
* For Real-Mode (A or B subdevice): 33M
* For Complex (AB or BA subdevice): 66M
^^^^^^^^^^^^^^^^^^^^^^^^^^^
DBSRX
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The DBSRX board has 1 quadrature subdevice.
It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t
Receive Antennas: **J3**
The board has no user selectable antenna setting
Receive Gains:
* **GC1**, Range: 0-56dB
* **GC2**, Range: 0-24dB
Bandwidth (Hz): 8M-66M
Sensors:
* **lo_locked**: boolean for LO lock state
^^^^^^^^^^^^^^^^^^^^^^^^^^^
DBSRX2
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The DBSRX2 board has 1 quadrature subdevice.
It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t
Receive Antennas: **J3**
The board has no user selectable antenna setting
Receive Gains:
* **GC1**, Range: 0-73dB
* **BBG**, Range: 0-15dB
Bandwidth (Hz): 8M-80M
Sensors:
* **lo_locked**: boolean for LO lock state
^^^^^^^^^^^^^^^^^^^^^^^^^^^
RFX Series
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The RFX Series boards have 2 quadrature subdevices, one transmit, one receive.
Transmit defaults to low IF and Receive defaults to direct conversion.
The IF can be adjusted through lo_offset in uhd::tune_request_t
The RFX Series boards have independent receive and transmit LO's and synthesizers
allowing full-duplex operation on different transmit and receive frequencies.
Transmit Antennas: **TX/RX**
Receive Antennas: **TX/RX** or **RX2**
The user may set the receive antenna to be TX/RX or RX2.
However, when using an RFX board in full-duplex mode,
the receive antenna will always be set to RX2, regardless of the settings.
Receive Gains: **PGA0**, Range: 0-70dB (except RFX400 range is 0-45dB)
Bandwidths (Hz):
* **RX**: 40M
* **TX**: 40M
Sensors:
* **lo_locked**: boolean for LO lock state
^^^^^^^^^^^^^^^^^^^^^^^^^^^
XCVR 2450
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The XCVR2450 has 2 quadrature subdevices, one transmit, one receive.
Transmit and Receive default to direct conversion but
can be used in low IF mode through lo_offset in uhd::tune_request_t
The XCVR2450 has a non-contiguous tuning range consisting of a
high band (4.9-6.0GHz) and a low band (2.4-2.5GHz).
Transmit Antennas: **J1** or **J2**
Receive Antennas: **J1** or **J2**
The XCVR2450 uses a common LO for both receive and transmit.
Even though the API allows the RX and TX LOs to be individually set,
a change of one LO setting will be reflected in the other LO setting.
The XCVR2450 does not support full-duplex mode, attempting to operate
in full-duplex will result in transmit-only operation.
Transmit Gains:
* **VGA**, Range: 0-30dB
* **BB**, Range: 0-5dB
Receive Gains:
* **LNA**, Range: 0-30.5dB
* **VGA**, Range: 0-62dB
Bandwidths (Hz):
* **RX**: 15M, 19M, 28M, 36M; (each +-0, 5, or 10%)
* **TX**: 24M, 36M, 48M
Sensors:
* **lo_locked**: boolean for LO lock state
* **rssi**: float for rssi in dBm
^^^^^^^^^^^^^^^^^^^^^^^^^^^
WBX Series
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The WBX Series boards have 2 quadrature subdevices, one transmit, one receive.
Transmit and Receive default to direct conversion but
can be used in low IF mode through lo_offset in uhd::tune_request_t
The WBX Series boards have independent receive and transmit LO's and synthesizers
allowing full-duplex operation on different transmit and receive frequencies.
Transmit Antennas: **TX/RX**
Receive Antennas: **TX/RX** or **RX2**
The user may set the receive antenna to be TX/RX or RX2.
However, when using an WBX board in full-duplex mode,
the receive antenna will always be set to RX2, regardless of the settings.
Transmit Gains: **PGA0**, Range: 0-25dB
Receive Gains: **PGA0**, Range: 0-31.5dB
Bandwidths (Hz):
* **RX**: 40M
* **TX**: 40M
Sensors:
* **lo_locked**: boolean for LO lock state
^^^^^^^^^^^^^^^^^^^^^^^^^^^
TVRX
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The TVRX board has 1 real-mode subdevice.
It is operated at a low IF.
Receive Antennas: RX
Receive Gains:
* **RF**, Range: -13.3-50.3dB (frequency-dependent)
* **IF**, Range: -1.5-32.5dB
Bandwidth: 6MHz
------------------------------------------------------------------------
Daughterboard Modifications
------------------------------------------------------------------------
Sometimes, daughterboards will require modification
to work on certain frequencies or to work with certain hardware.
Modification usually involves moving/removing a SMT component
and burning a new daughterboard id into the eeprom.
^^^^^^^^^^^^^^^^^^^^^^^^^^^
DBSRX - Mod
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Due to different clocking capabilities,
the DBSRX will require modifications to operate on a non-USRP1 motherboard.
On a USRP1 motherboard, a divided clock is provided from an FPGA pin
because the standard daughterboard clock lines cannot provided a divided clock.
However, on other USRP motherboards, the divided clock is provided
over the standard daughterboard clock lines.
**Step 1: Move the clock configuration resistor**
Remove R193 (which is 10 ohms, 0603 size) and put it on R194, which is empty.
This is made somewhat more complicated by the fact that the silkscreen is not clear in that area.
R193 is on the back, immediately below the large beige connector, J2.
R194 is just below, and to the left of R193.
The silkscreen for R193 is ok, but for R194,
it is upside down, and partially cut off.
If you lose R193, you can use anything from 0 to 10 ohms there.
**Step 2: Burn a new daughterboard id into the EEPROM**
With the daughterboard plugged-in, run the following commands:
::
cd <install-path>/share/uhd/utils
./usrp_burn_db_eeprom --id=0x000d --unit=RX --args=<args> --slot=<slot>
* <args> are device address arguments (optional if only one USRP is on your machine)
* <slot> is the name of the daughterboard slot (optional if the USRP has only one slot)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
RFX - Mod
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Older RFX boards require modifications to use the motherboard oscillator.
If this is the case, UHD will print a warning about the modification.
Please follow the modification procedures below:
**Step 1: Disable the daughterboard clocks**
Move R64 to R84, Move R142 to R153
**Step 2: Connect the motherboard blocks**
Move R35 to R36, Move R117 to R115
These are all 0-ohm, so if you lose one, just short across the appropriate pads
**Step 3: Burn the appropriate daughterboard id into the EEPROM**
With the daughterboard plugged-in, run the following commands:
::
cd <install-path>/share/uhd/utils
./usrp_burn_db_eeprom --id=<rx_id> --unit=RX --args=<args> --slot=<slot>
./usrp_burn_db_eeprom --id=<tx_id> --unit=TX --args=<args> --slot=<slot>
* <rx_id> choose the appropriate RX ID for your daughterboard
* **RFX400:** 0x0024
* **RFX900:** 0x0025
* **RFX1800:** 0x0034
* **RFX1200:** 0x0026
* **RFX2400:** 0x0027
* <tx_id> choose the appropriate TX ID for your daughterboard
* **RFX400:** 0x0028
* **RFX900:** 0x0029
* **RFX1800:** 0x0035
* **RFX1200:** 0x002a
* **RFX2400:** 0x002b
* <args> are device address arguments (optional if only one USRP is on your machine)
* <slot> is the name of the daughterboard slot (optional if the USRP has only one slot)
|
