Quick take
When you're putting together an RF test bench for network, cable, or telecom work, the first decision is what kind of instrument you actually need. Do you need to generate a radio-frequency signal, measure the power that comes out of a device, or isolate a device from outside RF? The four products here cover all three jobs. The TOJOIN RF SHIELD BOX MS3020-A is a shielding enclosure. The EICO Model 324 and the Vintage Soviet RF Signal Generator are both signal generators, and the For V7.0 RF Power Meter handles RF power and amplifier gain measurement.
You also get a clear condition split: the V7.0 meter is new, while the other three are used. That matters for how much inspection you want to do before adding a unit to your bench.
At a glance: listed prices
| Product | Listed Price | Price Bar | Primary Job |
|---|---|---|---|
| RF SHIELD BOX MS3020-A | USD 749.99 | RF shielding during tests | |
| For V7.0 RF Power Meter | USD 155.54 | RF power and amp gain measurement | |
| EICO Model 324 Signal Generator | USD 99.99 | Vintage signal generation | |
| Vintage Soviet RF Signal Generator | USD 89.99 | Low-cost signal generation |
The shielding box carries the highest listed price by a wide margin. The two signal generators sit close together at the low end, with the V7.0 meter in between.
How to choose
Think about the test task first:
- If you need to isolate a device from ambient RF while you test it, the TOJOIN MS3020-A is the one described as a radio frequency shielding box.
- If you want a signal generator with a frequency range stated in the product title, the Vintage Soviet generator gives you 0.7-1.4 MHz.
- If you prefer a vintage US-made generator and the title says it is fully working, the EICO Model 324 is the direct alternative.
- If the job is measuring RF power and amplifier gain, the V7.0 RF Power Meter is the meter for that.
Product notes
RF SHIELD BOX MS3020-A, Radio Frequency Shielding Box, RF Test Equipment
This TOJOIN unit is built around a single purpose: acting as a radio frequency shielding box for RF test work. The model number MS3020-A gives you a concrete reference, and the design centers on RF shielding and protection so that testing can be accurate and reliable. It is used and comes as one unit, so a pre-owned enclosure is part of the deal. On the limitation side, a shielding box does not generate or measure signals by itself. Pair it with a signal generator or a power meter; it provides the controlled space around the device under test rather than the measurement readout.
EICO Model 324 Signal Generator Vintage RF Radio Test Equipment FULLY WORKING
If you want a signal generator with a clear vintage identity, the EICO Model 324 is a gray, US-origin unit from EICO. The title includes FULLY WORKING, and the intended role is testing and measuring radio frequencies. The MPN 324 helps identify the device if you are tracking EICO models. Its limitation is that it is a used vintage instrument, so the condition statement of FULLY WORKING is the practical guide; this is not a new, digitally controlled generator. The EICO and the Soviet generator are close in price, so the choice between the two is as much about the style and model history as about the test bench role.
Vintage Soviet RF Signal Generator 0.7-1.4 MHz Tube USSR Radio Test Equipment
This vintage Soviet generator is the lowest-priced item in the group and has one distinct advantage: a clearly stated frequency range of 0.7-1.4 MHz. It uses a vacuum tube, a КПВ-2 variable capacitor, and a metal enclosure with a Russian-marked front panel, so it is clearly a tube-era piece of RF test equipment. The RF output, 6.3V and 250V connections, and L2 output are part of the hookup. Its limitation is the narrow frequency band. At 0.7-1.4 MHz, it suits older radio work rather than broadband modern telecom signals. It is also a used unit built around vintage components.
For V7.0 RF Power Meter 10GHz RF Test Equipment for Amp Gain Measurement
The V7.0 RF Power Meter is the one new item among the four, and it is the only unit in this group described as a power meter. Its role is 10GHz RF test work and amplifier gain measurement, and it includes a Type-C interface, high dynamic range, fast acquisition, and a built-in digitally programmable attenuator. That makes it the natural choice when your test question is about how much power an amplifier or RF system is producing. The limitation is job scope: it is a measurement tool, not a signal source. You still need a generator or device under test to provide the RF signal it will measure. If you are buying your first piece of RF gear, the paired generator and meter are separate purchases.
Final recommendation by use case
- For a low-cost signal source with a frequency range you can read in the product title, choose the Vintage Soviet RF Signal Generator at USD 89.99.
- For a vintage US-made generator with FULLY WORKING in the title, choose the EICO Model 324 at USD 99.99.
- For RF power and amplifier gain measurement, choose the For V7.0 RF Power Meter at USD 155.54.
- For a dedicated enclosure that shields a device under test, choose the TOJOIN RF SHIELD BOX MS3020-A at USD 749.99.
