Transmitter-receiver module 23X1008XN from 23GHz radio link.

In the final stage, it contains a 2 W amplifier. Such high power in the 21-24GHz band is rarely found in surplus modules.

This module can be used for adaptation to a 24 GHz power amplifier (SMM5845V1B):
www.sp5xmu.pl/tech/PA_24GHz_WAVELAB_23X1008XN.pdf

It is also a good material for experiments with adaptation to a 24 GHz transverter.
Forum threads about this:
http://mikrofale.cafe/showthread.php?tid=197
https://groups.io/g/UKMicrowaves/topic/81996273

The filter after the LO doubler has a bandwidth of approximately 3780 to 4350 MHz, and that after the LO tripler - ca 11.3 to 13 GHz.
All three LPFs in the LO path have a cut off of approximately 13 GHz.

Unlike the 23X1008XP module, this module has a transmitter operating in the lower part of the band (ca 22 GHz) and a receiver in the upper (ca 23 GHz).
This means that there may be required more work to modify the module to the 24 GHz TRV, in particular it will be necessary to tune the microstrip filter after the TX mixer.

Downconverter can be left unmodified. This is confirmed by the measurement results (RFin 24048 MHz, -52 dBm):
IF = 2320 MHz, G = 20 dB, LO = 26.368 GHz (LOin = 2197.333 MHz)
IF = 1296 MHz, G = 26 dB, LO = 25.344 GHz (LOin = 2112 MHz)
IF = 432 MHz, G = 26 dB, LO = 24.480 GHz (LOin = 2040 MHz)
IF = 432 MHz, G = 18 dB, LO = 23.616 GHz (LOin = 1968 MHz)
IF = 144 MHz, G = 25 dB, LO = 24.192 GHz (LOin = 2016 MHz)
IF = 144 MHz, G = 22 dB, LO = 23.904 GHz (LOin = 1992 MHz)


Main identified elements of the TX path:
- PA SMM5845V1B, K-band power amplifier MMIC, G = 22 dB, Pout = 2 W, https://www.sedi.co.jp/pdf/SMM5845V1B_ED2-0.pdf
- Mixer AMMC-6545, 8 to 45 GHz sub-Harmonic mixer, https://pdf1.alldatasheet.com/datasheet-pdf/view/1285299/BOARDCOM/AMMC-6545.html
- TX amplifier CHA3689, 12.5 to 30 GHz, G = 26 dB, https://www.ums-rf.com/wp-content/uploads/2017/01/CHA3689-99F-Full-1035.pdf
- Driver HMC442, MMIC medium power amplifier 17.5 to 25.5 GHz, G = 15 dB, P1dB = 21.5 dBm, https://www.analog.com/media/en/technical-documentation/data-sheets/hmc442.pdf

Main identified elements of the RX path
- RX front-end HMC967, GaAs MMIC I/Q downconverter, 21 to 24 GHz, https://www.analog.com/media/en/technical-documentation/data-sheets/hmc967.pdf
- IF amplifier TQP3M9008, MMIC amplifer 50 to 4000 MHz,  G = 20 dB, P1dB = 20 dBm, https://www.rfmw.com/data/triquint_tqp3m9008.pdf
- QCN-19+, 90 deg splitter/combiner, 1100 to 1925 MHz, https://www.mouser.pl/datasheet/2/1030/QCN_19_2b-1701022.pdf

Main identified elements of the LO path
- 1st LO amplifier TQP3M9008, MMIC amplifer 50 to 4000 MHZ,  G = 20 dB, P1dB = 20 dBm, https://www.rfmw.com/data/triquint_tqp3m9008.pdf
- Frequency doubler HMC188, GaAs MMIC passive frequency doubler, input 1.25 to 3.0 GHz, https://www.analog.com/media/en/technical-documentation/data-sheets/hmc188.pdf
- 2nd LO amplifier MGA-82563, GaAs MMIC amplifier, 0.1 to 6 GHz, P1dB = 17 dBm, https://www.mouser.com/datasheet/2/678/V02-1985EN0-909256.pdf
- Frequency tripler HMC916, MMIC x3 active frequency multiplier, output 8 to 16 GHz , https://www.analog.com/media/en/technical-documentation/data-sheets/hmc916.pdf
- 3rd & 4th LO amplifier VMMK-2503, 1 to 12 GHz wideband amplifier, P1dB = 17 dBm, https://pdf1.alldatasheet.com/datasheet-pdf/view/510944/AVAGO/VMMK-2503-TR1G.html
- TX LO amplifier: XB1007, 4 to 11  GHz  GaAs MMIC buffer amplifier, G = 23 dB, P1dB = 19 dBm, https://cdn.macom.com/datasheets/XB1007-QT.pdf
or XB1008, 10 to 21  GHz  GaAs MMIC buffer amplifier, G = 17 dB, P1dB = 18 dBm, https://cdn.macom.com/datasheets/XB1008-QT.pdf


Dimensions: 12 x 7 x 1.3 cm
Weight: 225 g