Choosing among ham radio transceivers is less about paying more and more about matching a radio's band and mode to your operating plan. The Kenwood TS-520SE and Kenwood TM-451A represent different paths, so decide the intended operating brief before weighing the price difference. Both are used and sold as is, making condition part of the choice rather than a footnote.
Quick verdict
Choose Kenwood TS-520SE if you need the HF, SSB & CW, 10M-160M combination named in its title. Choose Kenwood TM-451A if 430-440MHz 70cm UHF FM is the target. The TS-520SE is listed at USD 249.99, while the TM-451A is listed at USD 199.99-a $50 difference. The right call is the radio whose stated band and mode match your setup, not automatically the higher-priced radio.
Listed-price comparison
| Radio | Listed price |
|---|---|
| Kenwood TS-520SE | USD 249.99 |
| Kenwood TM-451A | USD 199.99 |
Where each product wins
Kenwood TS-520SE

The TS-520SE wins for the use case identified by its title. That title gives shoppers a clear operating brief to match against their plan before considering secondary features. This is a focused choice rather than a general answer for every ham radio setup; select it when its stated modes and span are the reason you are shopping.
Kenwood TM-451A

The TM-451A wins for the use case identified by its title. That direct frequency-and-mode match is the deciding reason for a shopper whose plan already points to this radio's stated target. Its LCD Screen is a useful secondary point, but it should support-not replace-the band-and-mode match. Choose the TM-451A when that title-level match is the priority.
Product notes
Kenwood TS-520SE
Kenwood TS-520SE stands out for its Auto-Scan feature, a concrete reason to choose it if scan functionality is part of your radio setup. The gray finish is another plainly specified characteristic for shoppers coordinating equipment. The main limitation is condition: the unit is used and sold as is, may need adjustments, and was not fully tested by an operator. That makes the TS-520SE a better fit for someone comfortable assessing used radio gear than for someone seeking a clearly documented working state. Select it when Auto-Scan is useful and the stated operating brief fits, while treating the adjustment possibility as central to the decision.
Kenwood TM-451A
Kenwood TM-451A has one especially practical tie-breaker: an LCD Screen. Choose it when an on-device display matters to the way you plan to use a ham radio transceiver. The limitation is condition: the unit is used and sold as is, and it may need more in-depth cleaning. That caveat matters because the display cannot resolve a mismatch between your intended operating target and the frequency and mode named in the title. For the shopper whose plan matches that target, the LCD Screen is a concrete reason to select the TM-451A; the cleaning possibility is the compromise to accept.
Final choice by use case
- HF, SSB & CW, 10M-160M range: choose Kenwood TS-520SE. Its title directly names this operating brief.
- 430-440MHz 70cm UHF FM: choose Kenwood TM-451A. Its title directly names this frequency-and-mode target.
If neither operating brief matches your plan, do not choose between Kenwood TS-520SE and Kenwood TM-451A simply because one has a different price. The band and mode should settle the decision first, with the used, sold-as-is condition considered before purchase.