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SR-C146; Standard Radio Corp. (ID = 744502) Amat TRX SR-C146; Standard Radio Corp. (ID = 1181864) Amat TRX
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SR-C146; Standard Radio Corp. (ID = 744502) Amat TRX
Standard Radio Corp.: SR-C146 [Amat TRX] ID = 744502 448x603
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For model SR-C146, Standard Radio Corp. (SR), Tokyo:
Advert mag. CQ elettronica (Italy) 01/1973
Country:  Japan
Manufacturer / Brand:  Standard Radio Corp. (SR), Tokyo
Year: 1972 Category: Amateur TRX: Transmitter/Receiver (and Transceiver)
Semiconductors (the count is only for transistors) 29:
Main principle Transceiver; ZF/IF 11700/455 kHz
Wave bands Wave Bands given in the notes.
Power type and voltage Storage and/or dry batteries / 10×1.2 or 8×1.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out 0.5 W (unknown quality)
from Model: SR-C146 - Standard Radio Corp. SR, Tokyo
Material Metal case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 75 x 210 x 40 mm / 3 x 8.3 x 1.6 inch
Notes "World's smallest Handie rig"; 144–148 MHz/FM, 5 channels, Pout: 1 W.
(Price in Germany 1976)
Net weight (2.2 lb = 1 kg) 1 kg / 2 lb 3.2 oz (2.203 lb)
Price in first year of sale 575.00 DM
Mentioned in Katalog Hannes Bauer, 1972–1978
Literature/Schematics (1) Advert mag. CQ elettronica (Italy) 01/1973

Model page created by Miguel Bravo-Cos. See "Data change" for further contributors.

All listed radios etc. from Standard Radio Corp. (SR), Tokyo
Here you find 243 models, 227 with images and 83 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Standard Radio Corp.: SR-C146
Threads: 1 | Posts: 3
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standard: SR-C146;
Mario Giganti

The crystal inside the set for transmission on channel N°5 is labeled "R92". Anyone knows what frequency is it equal (145,xxx MHz)?

Thanks for the help

Mario Giganti I1CWZ

Franz Harder

Hello Mario,

the SRC-146 is a 2m transceiver. The numbering of channels (within germany) is as follows:

S...  is a Simplex Channel Frequency, i.e. RX/TX on the same frequency

R0...R19 are Relay Channels for the 2m Band with TX normally 600kHz below RX frequency

R66...R101 are Relay Channels for the 70cm Band with TX normally 7,6 MHz below RX frequency


So, the crystal labelled R92 is not suited for your piece of equipment - it is for the 70cm band!

An excellent list of those channels can be found here.


I hope this helps

73, Franz DK5CB

Mario Giganti

Dear Franz DK5CB,

thanks for your information on the meaning of the channel R92 labeled on the envelope of the quartz.

Thanks also for the excellent list of the VHF + UHF channels and frequencies for amateur use. I've saved it for future use within the folder "Documents" of my computer. Also the linked pages are very interesting.  Even if I can't speak and write correctly German, I can read it fairly well.

But strange enough, the quartz with the R92 label was already inside the box of the SR-C146A transceiver when I bought it new and I know that back in the ' 70 when I used normally the transceiver, the emission was on 145 MHz on FM. But I don't know  the exact value of the transmission frequency. Maybe I should ask help to somebody who has a VHF frequency meter.

I think that the quartz envelope maybe has been mislabeled. Or maybe the quartz was intended originally for use on 432 MHz, but then for some reason it has been used in a circuit with a different value of frequency multiplication so that the final frequency of transmission was 145,xxx MHz. 

So again many thanks and have a good weekend.

Mario I1CWZ (Ham radio license since 1951)

Standard Radio Corp.: SR-C146
End of forum contributions about this model