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The Cub is available in a range of kits covering 15, 20, 30, 40 and 80m bands, each kit contains all the components required to complete the project. To help constuction the PCB is partially populated with SMD (surface mount devices). This not only means that the size of the kit is reduced but that complex circuitry can be included which enhances the performance of the transceiver.
The MFJ QRP-Cub range of transceivers are truly remarkable. Although super small they have a full superhet receiver, sharp crystal IF filtering, excellent 0.2 microvolt sensitivity, smooth AGC, variable transmitter output power of 1-2.2W and full QSK CW with sinewave sidetone and click free keying. Each transceiver is set up to operate over a 50kHz segment of the band. This 50kHz segment can be shifted to suit the operating conditions. The Cub is truly remarkable, it is extremely sensitive and the audio sounds just like its coming from a full-blown transceiver many times its size. The filtering arrangement certainly does its job. The Cub fully transceives, so tuning around the band means that you can immediately transmit on the receive frequency. It has full QSK break-in keying along with sidetone. There are no annoying clicks in the headphones.
The MFJ-8100K kit provides all the components, PCB, case, knobs and building instructions. If you are new to kit building, then following the instructions you will build this kit with very little effort. If a seasoned builder then the time expended will be that much less. Please note that the battery, headphones and antenna are not provided in the kit.
When using the MFJ-8100 SW regenerative receiver it feels just like the old days, except that this is built-up from modern components. The receiver covers 3.5-4.32, 5.95-7.4, 9.56-12.05, 13.21-16.5, 17.6-22MHz. These bands include the maritime, amateur and commercial broadcast stations from around the world. The 8100W is a ready- built communications receiver. All you have to supply is the battery, headphones and antenna. It is very easy to operate and the modes covered are AM, CW and SSB with smooth regeneration. There are two headphone sockets at the rear just in case you want to share your experience or record to a tape recorder. Ideal as a novice project.
When using the MFJ-8100 SW regenerative receiver it feels just like the old days, except that this is built-up from modern components. The receiver covers 3.5-4.32, 5.95-7.4, 9.56-12.05, 13.21-16.5, 17.6-22MHz. These bands include the maritime, amateur and commercial broadcast stations from around the world. The 8100W is a ready- built communications receiver. All you have to supply is the battery, headphones and antenna. It is very easy to operate and the modes covered are AM, CW and SSB with smooth regeneration. There are two headphone sockets at the rear just in case you want to share your experience or record to a tape recorder.
There are two versions of the receiver one in kit form MFJ-8100K and this ready-built MFJ-8100W.
* Metal case * Supply: 9V DC (PP3) int., 12VDC ext.* Ready-built version MFJ-8400W is also available
Enjoy the fun of monitoring your local 2m repeater and local FM activity, or use it as a second receiver to receive packet radio. Covers all the the UK 2m FM frequency range and beyond. The kit includes all components, PCB case and knobs. Also includes squelch, volume control, built-in speaker, phone socket, 50 Ohm antenna input. Powered by internal 9V battery or external 12V DC source. With the kit you get a step by step instruction manual and a metal case. Dual conversion with 0.1uV sensitivity and ceramic IF filter. Second oscillator is crystal controlled. It is advisable to have some test equipment so as to finalise the setting up. Once this has been done it is very simple to use. Ideal as a novice project.
* Metal case * Supply: 9V DC (PP3) int., 12VDC ext.* Kit version MFJ-8400K also available
Enjoy the fun of monitoring your local 2m repeater and local FM activity, or use it as a second receiver to receive packet radio. Covers all the the UK 2m FM frequency range and beyond. The receiver is housed in a metal case and also includes squelch, volume control, built-in speaker, phone socket, 50 Ohm antenna input. Powered by internal 9V battery or external 12V DC source. Dual conversion with 0.1uV sensitivity and ceramic IF filter. Second oscillator is crystal controlled.
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